Ring type multi-pass valve core structure and water valve

Abstract

The application discloses a ring type multi-pass valve core structure and a water valve, which comprises a valve body, a valve seat, a sealing gasket and a valve core. The bottom end of the valve body is provided with a plurality of flow-through holes in a ring shape. The valve seat is arranged in the interior of the valve body and is tightly attached to the bottom of the valve body. The valve seat is provided with through holes corresponding to the flow-through holes. The sealing gasket is tightly arranged between the valve body and the valve seat and is matched with the valve seat in shape. The valve core is arranged in the interior of the valve body and is tightly attached to the valve seat. The center of the valve core is coincident with the center of the valve body. The end face of the valve core towards the valve seat is divided into a first cavity, a second cavity and a third cavity by arranging a first flow baffle and a second flow baffle. The flow between the flow-through holes is switched by rotating the valve core. The application can solve the problems of the existing electronic water valve, such as large volume, large fluid resistance and slow response time of flow regulation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water valves, in particular to a light weight, intelligent, low energy consumption, fast response, high precision ring type multi-channel valve core structure and water valve. BACKGROUND

[0002] In recent years, with the rapid development of new energy vehicle industry, its thermal management system has become more and more integrated and intelligent. Compared with traditional fuel vehicles, new energy vehicles have different thermal management systems due to different driving forms and energy architectures. The driving motor of new energy vehicles 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; in order to improve the endurance, the automobile manufacturers often choose high energy density and high discharge rate power batteries, but too high energy density and discharge rate will inevitably cause the battery to generate a large amount of heat during use, and high temperature will not only affect the service life of the battery, but also easily cause safety accidents. The thermal management system of new energy vehicles 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 efficient thermal management systems to ensure the 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 electronic water valve is a new type of cooling liquid flow regulating valve in the thermal management system of new energy vehicles, which is similar to the traditional fuel vehicle thermostat in function and working principle. Its main function is to adaptively adjust the flow size of each pipeline cooling liquid according to the temperature change of different working parts, to ensure that the battery, motor and other parts are in the best working temperature environment, so as to achieve the purpose of energy saving and emission reduction and improve the energy utilization rate.

[0004] At present, the structure design of electronic water valve usually adopts column valve structure, the inlet and outlet flow channels are distributed on the side wall, the flow channel is also arranged on the valve core, the flow channel and the flow direction can be switched and the flow can be adjusted by rotating the valve core, so as to realize the purpose of switching different modes of the valve body. By designing the structure of the valve core and the valve seat, the function of flow proportional adjustment can be realized. However, since the outer flow channel is distributed on the side wall and the inlet and outlet ports are in the up-down direction, the fluid needs to change direction for many times when flowing through the valve core, which greatly increases the pressure drop of the fluid, wastes energy, seriously affects the service life of the thermal management system and other components, and even causes safety accidents. Moreover, the side wall flow channel of the water valve also makes the whole valve body large in size, which is not conducive to the miniaturization and light weight of the thermal management system, and affects the arrangement of other components and flow channels on the thermal management system; and the large size further affects the response time and adjustment accuracy of the flow adjustment of the water valve. SUMMARY

[0005] The present application provides a light weight, intelligent, low energy consumption, fast response and high precision ring type multi-pass valve core structure and water valve, which can solve the problems of large size, large fluid resistance and slow response time of flow adjustment of the existing electronic water valve.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present application provides the following technical scheme: a ring type multi-pass valve core structure, comprising a valve body, the bottom end of the valve body is provided with a plurality of flow-through holes in a ring shape; a valve seat is arranged inside the valve body and closely attached to the bottom of the valve body, the valve seat is provided with through holes corresponding to the flow-through holes; a sealing gasket is closely located between the valve body and the valve seat and has a shape matching the valve seat; a valve core is arranged inside the valve body and closely attached to the valve seat, the center of the valve core coincides with the center of the valve body, the end face of the valve core facing the valve seat is divided into a first cavity, a second cavity and a third cavity by arranging a first flow baffle and a second flow baffle, and the flow-through holes are switched by rotating the valve core. In the above-mentioned scheme, the flow-through holes are arranged along the track of the ring shape, the first cavity, the second cavity and the third cavity can realize the conduction between different flow-through holes, and the first flow baffle and the second flow baffle can also realize the adjustment of the flow when the valve core rotates through the corresponding flow-through hole.

[0007] As a preferred, the first central angle θ of the flow-through hole occupying the position of the bottom end of the valve body is 30°, the diameter of the flow-through hole is φ, the distance between the center of the valve body and the center of the flow-through hole is X, X = 1.93φ, and the volume of the whole valve body can reach the minimum in this state.

[0008] As a preferred, the flow-through holes include a first flow-through hole, a second flow-through hole, a fourth flow-through hole, a fifth flow-through hole and a third flow-through hole arranged in the counterclockwise direction along the bottom end of the valve body in sequence, a five-pass structure is adopted, and the needs of multi-mode switching of new energy vehicles are met.

[0009] As preferred, the fifth flow-through hole is set as a normally open hole, the fifth flow-through hole is always in communication with the third cavity, the top of the third cavity is provided with a balance hole in communication with the valve body inner cavity on the upper side of the valve core, when the water valve is working, the fluid flowing through the center hole will flow out of the balance hole under the action of hydraulic pressure, filling the inside of the valve body, so that the up and down hydraulic pressure of the valve core can be balanced when the water valve is working stably, ensuring that the valve core can tightly adhere to the valve seat.

[0010] As preferred, the first cavity and the third cavity are both fan-shaped, and the second cavity is located between the first cavity and the third cavity and is disc-shaped, the fan-shaped first cavity and third cavity can be beneficial to switching and adjusting the flow-through holes, and the disc-shaped second cavity can enable two flow-through holes that are far apart.

[0011] As preferred, the second central angle of the first cavity is α1=90°, the third central angle of the third cavity is α4=150°, and the fourth central angle and the fifth central angle on both sides of the second cavity are both 60°.

[0012] As preferred, the first central angle between the first flow-through hole and the second flow-through hole is β1=60°, the second central angle between the first flow-through hole and the third flow-through hole is β2=60°, the third central angle between the second flow-through hole and the fourth flow-through hole is β3=60°, the fourth central angle between the third flow-through hole and the fifth flow-through hole is β4=90°, and the fifth central angle between the fourth flow-through hole and the fifth flow-through hole is β5=90°.

[0013] As preferred, the inner wall corner of the first cavity, the second cavity and the third cavity are all circular arc corner transitions, which can reduce the backflow of the fluid, have smaller flow resistance and loss, lower pressure drop and less energy loss.

[0014] As preferred, the edge of the valve seat is provided with at least one limiting groove, the limiting groove is matched with the corresponding protruding structure inside the valve body, the valve seat can be prevented from rotating and limited, other fasteners are not needed, and the relative position of the valve seat and the flow-through hole can remain unchanged after the valve seat is pressed by the valve core.

[0015] In the second aspect, the application further provides a water valve comprising the ring-type multi-way valve core structure as described in the first aspect.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] (1) The outer flow channel is annularly distributed at the bottom of the valve body, the volume of the valve body is reduced, the water valve is lightweight as a whole, and the arrangement of other elements and flow channels on the thermal management system is more free;

[0018] (2) Six 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;

[0019] (3) The annular distribution flow channel can be matched with the annular interface of the heat pump;

[0020] (4) Three cavities are arranged at the valve core to form three flow channels, the switching of the flow channels is realized by rotating the valve core, the flow is adjusted, and the proportion and flow of a specific flow channel can be adjusted by rotating the valve core to a certain angle;

[0021] (5) The response is more rapid, the cooling is faster, and the safety of the automobile is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is an explosion perspective view of the valve core structure of the application;

[0023] Figure 2 is a structural view of the valve core of the application;

[0024] Figure 3 is a parameter schematic view of the cooperation of the valve core and the valve seat of the application;

[0025] Figure 4 is a distribution schematic view of the flow-through hole of the application;

[0026] Figure 5 is a schematic view of working mode one of the application;

[0027] Figure 6 is a schematic view of working mode two of the application;

[0028] Figure 7 is a schematic view of working mode three of the application;

[0029] Figure 8 is a schematic view of working mode four of the application;

[0030] Figure 9 is a schematic view of working mode five of the application;

[0031] Figure 10 is a schematic view of working mode six of the application.

[0032] Reference signs:

[0033] 1. Valve body, 2. Valve seat, 3. Valve core, a. First flow hole, b. Second flow hole, c. Third flow hole, d. Fourth flow hole, e. Fifth flow hole, f. Limiting groove, g. First cavity, h. Second cavity, i. Third cavity, j. Balance hole, k. First baffle, l. Second baffle, θ. First central angle, α1. Second central angle, α2. Fourth central angle, α3. Fifth central angle, α4. Third central angle, β1. Included angle of the first center, β2. Included angle of the second center, β3. Included angle of the third center, β4. Included angle of the fourth center, β5. Included angle of the fifth center. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] like Figures 1-10 As shown, this invention addresses the problems of large size, high fluid resistance, and slow response time in flow regulation of existing electronic water valves by providing the following technical solution: a ring-shaped multi-pass valve core structure, comprising a valve body 1, the bottom end of which is annularly provided with multiple flow holes; a valve seat 2, disposed inside the valve body 1 and tightly against the bottom of the valve body 1, the valve seat 2 having through holes corresponding to the flow holes; a sealing gasket 4, the sealing gasket 4 being tightly located between the valve body 1 and the valve seat 2, the shape of which matches the valve seat 2, the sealing gasket 4 ensuring the sealing between the valve body 1 and the valve seat 2; and a valve core 3, disposed within the... The valve body 1 is in close contact with the valve seat 2. The center of the valve core 3 coincides with the center of the valve body 1. The end face of the valve core 3 facing the valve seat 2 is divided into a first cavity g, a second cavity h, and a third cavity i by a first baffle plate k and a second baffle plate l. The flow between the flow holes is switched by the rotation of the valve core 3. In the above scheme, the flow holes are arranged along a circular trajectory. The first cavity g, the second cavity h, and the third cavity i can realize the conduction between different flow holes. The first baffle plate k and the second baffle plate l can also realize the flow rate regulation when the valve core 3 rotates and passes through the corresponding flow hole.

[0036] Specifically, the flow holes include a first flow hole a, a second flow hole b, a fourth flow hole d, a fifth flow hole e, and a third flow hole c arranged sequentially in a counterclockwise direction along the bottom end of the valve body 1. A five-way structure is adopted to meet the multi-mode switching needs of new energy vehicles. Based on the five flow holes and the need for switching between six modes, the first central angle θ occupied by each flow hole satisfies θ≤30°. When the first central angle θ is 30° and the diameter of the flow hole is φ, the distance X between the center of the valve body 1 and the center of the flow hole is approximately 1.93φ according to the formula x≥(φ / 2) / sin(30° / 2)≈1.93φ. Therefore, when X=1.93φ, the volume of the entire valve body can reach its minimum in this state.

[0037] The inner wall corner of the first cavity g, the second cavity h and the third cavity i is a circular arc corner transition, which can reduce the backflow of fluid, has smaller flow resistance and loss, lower pressure drop and less energy loss.

[0038] In actual application, the first baffle k can pass through the center of the valve core 3, and a center hole can be formed in the middle of the first baffle k, which can be matched with the center hole on the valve seat 2, and the two center holes are connected by a pin as the rotation center of the valve core 3, which has a guiding effect.

[0039] In the embodiment, as shown in Figures 3-4 The second circular central angle α1 of the first cavity g is 90°, the third circular central angle α4 of the third cavity i is 150°, and the fourth circular central angle α2 and the fifth circular central angle α3 on both sides of the second cavity h are both 60°. In addition, the first circular central angle β1 between the first flow-through hole a and the second flow-through hole b is 60°, the second circular central angle β2 between the first flow-through hole a and the third flow-through hole c is 60°, the third circular central angle β3 between the second flow-through hole b and the fourth flow-through hole d is 60°, the fourth circular central angle β4 between the third flow-through hole c and the fifth flow-through hole e is 90°, and the fifth circular central angle β5 between the fourth flow-through hole d and the fifth flow-through hole e is 90°. The thickness of the first baffle k and the second baffle l is t, and each circular central angle needs to be reduced by the thickness t of the first baffle k and the second baffle l when being set.

[0040] In the embodiment, there are six modes, and the rotation angle of the valve core 3 is 0°-130°. At the beginning, the valve core angle is at the 0° position, as shown in Figures 5-10 The specific contents are shown in Table 1 as follows:

[0041] Table 1: Working mode schematic table

[0042]

[0043]

[0044] In the table, c-e, d-e, a-c and b-c mean that different flow-through holes are connected, such as c-e means that the third flow-through hole c and the fifth flow-through hole e are connected, and working mode one to working mode six correspond to the following Figures 5-10 .

[0045] In the embodiment, the water valve can adopt the valve core structure described above, when starting to work, the valve core 3 is rotated under the driving of the motor, so that different flow channels are communicated, the preset mode is reached, the medium flows into from the preset inlet flow channel, the flow direction and flow rate of different flow channels are adjusted under the flow channel mode switching of the valve core 3, and finally the temperature regulation of the thermal management system is realized.

[0046] In the embodiment, the fifth flow hole e is a normally open hole, the fifth flow hole e is always communicated with the third cavity i, the top of the third cavity i is provided with a balance hole j communicated with the inner cavity of the valve body 1 on the upper side of the valve core 3, when the water valve works, the fluid flowing through the center hole will flow out of the balance hole j under the action of hydraulic pressure, fill the inside of the valve body 1, so that the upper and lower hydraulic pressures of the valve core 3 can be balanced when the water valve stably works, and it is ensured that the valve core 3 can tightly adhere to the valve seat 2.

[0047] As shown in Figure 2 The first cavity g and the third cavity i are both fan-shaped, the second cavity h is located between the first cavity g and the third cavity i and is disc-shaped, the fan-shaped first cavity g and the third cavity i are beneficial to the switching and adjustment of the flow holes, and the disc-shaped second cavity h can make two flow holes far away from each other.

[0048] The edge of the valve seat 2 is provided with at least one limiting groove f, the limiting groove f is matched with the corresponding protruding structure in the valve body 1, the valve seat 2 can be prevented from rotating and limited, other fasteners are not needed, and the relative position between the valve seat 2 and the flow hole can be kept unchanged after the valve seat 2 is pressed by the valve core 3.

[0049] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications also change accordingly.

[0050] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0051] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In addition, the technical solutions among various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

Claims

1. A ring-type multi-pass spool structure, characterized by comprising: The application relates to a valve body (1) with a plurality of flow-through holes arranged in a ring shape at the bottom end of the valve body (1), a valve seat (2) arranged in the valve body (1) and closely attached to the bottom of the valve body (1), a sealing gasket (4) closely arranged between the valve body (1) and the valve seat (2) and matched with the valve seat (2), a valve core (3) arranged in the valve body (1) and closely attached to the valve seat (2), the center of the valve core (3) coincides with the center of the valve body (1), the end surface of the valve core (3) towards the valve seat (2) is divided into a first cavity (g), a second cavity (h) and a third cavity (i) by arranging a first flow baffle (k) and a second flow baffle (l), and the flow through the flow-through holes is switched by rotating the valve core (3), the first circular central angle theta of the flow-through holes at the bottom end of the valve body (1) is 30 DEG, the diameter of the flow-through holes is phi, the distance between the center of the valve body (1) and the center of the flow-through holes is X, X = 1.93 phi, the flow-through holes include a first flow-through hole (a), a second flow-through hole (b), a fourth flow-through hole (d), a fifth flow-through hole (e) and a third flow-through hole (c) arranged in the counterclockwise direction along the bottom end of the valve body (1) in sequence, the first cavity (g) and the third cavity (i) are both in a fan shape, the second cavity (h) is located between the first cavity (g) and the third cavity (i) and is in a butterfly shape, the second circular central angle alpha1 of the first cavity (g) is 90 DEG, the third circular central angle alpha4 of the third cavity (i) is 150 DEG, the fourth circular central angle alpha2 and the fifth circular central angle alpha3 on both sides of the second cavity (h) are both 60 DEG, the first circular central angle beta1 between the first flow-through hole (a) and the second flow-through hole (b) is 60 DEG, the second circular central angle beta2 between the first flow-through hole (a) and the third flow-through hole (c) is 60 DEG, the third circular central angle beta3 between the second flow-through hole (b) and the fourth flow-through hole (d) is 60 DEG, the fourth circular central angle beta4 between the third flow-through hole (c) and the fifth flow-through hole (e) is 90 DEG, and the fifth circular central angle beta5 between the fourth flow-through hole (d) and the fifth flow-through hole (e) is 90 DEG, the fifth flow-through hole (e) is arranged as a normally open hole, the fifth flow-through hole (e) is always connected with the third cavity (i), the top of the third cavity (i) is provided with a balance hole (j) connected with the inner cavity of the valve body (1) on the upper side of the valve core (3), the inner wall corner of the first cavity (g), the second cavity (h) and the third cavity (i) is all a circular arc corner transition, at least one limiting groove (f) is arranged at the edge of the valve seat (2) and matched with the corresponding convex structure in the valve body (1), and the valve core structure of the ring type multi-way valve is arranged. The application relates to a valve body (1) with a plurality of flow-through holes arranged in a ring shape at the bottom end of the valve body (1), a valve seat (2) arranged in the valve body (1) and closely attached to the bottom of the valve body (1), a sealing gasket (4) closely arranged between the valve body (1) and the valve seat (2) and matched with the valve seat (2), a valve core (3) arranged in the valve body (1) and closely attached to the valve seat (2), the center of the valve core (3) coincides with the center of the valve body (1), the end surface of the valve core (3) towards the valve seat (2) is divided into a first cavity (g), a second cavity (h) and a third cavity (i) by arranging a first flow baffle (k) and a second flow baffle (l), and the flow through the flow-through holes is switched by rotating the valve core (3), the first circular central angle theta of the flow-through holes at the bottom end of the valve body (1) is 30 DEG, the diameter of the flow-through holes is phi, the distance between the center of the valve body (1) and the center of the flow-through holes is X, X = 1.93 phi, the flow-through holes include a first flow-through hole (a), a second flow-through hole (b), a fourth flow-through hole (d), a fifth flow-through hole (e) and a third flow-through hole (c) arranged in the counterclockwise direction along the bottom end of the valve body (1) in sequence, the first cavity (g) and the third cavity (i) are both in a fan shape, the second cavity (h) is located between the first cavity (g) and the third cavity (i) and is in a butterfly shape, the second circular central angle alpha1 of the first cavity (g) is 90 DEG, the third circular central angle alpha4 of the third cavity (i) is 150 DEG, the fourth circular central angle alpha2 and the fifth circular central angle alpha3 on both sides of the second cavity (h) are both 60 DEG, the first circular central angle beta1 between the first flow-through hole (a) and the second flow-through hole (b) is 60 DEG, the second circular central angle beta2 between the first flow-through hole (a) and the third flow-through hole (c) is 60 DEG, the third circular central angle beta3 between the second flow-through hole (b) and the fourth flow-through hole (d) is 60 DEG, the fourth circular central angle beta4 between the third flow-through hole (c) and the fifth flow-through hole (e) is 90 DEG, and the fifth circular central angle beta5 between the fourth flow-through hole (d) and the fifth flow-through hole (e) is 90 DEG, the fifth flow-through hole (e) is arranged as a normally open hole, the fifth flow-through hole (e) is always connected with the third cavity (i), the top of the third cavity (i) is provided with a balance hole (j) connected with the inner cavity of the valve body (1) on the upper side of the valve core (3), the inner wall corner of the first cavity (g), the second cavity (h) and the third cavity (i) is all a circular arc corner transition, at least one limiting groove (f) is arranged at the edge of the valve seat (2) and matched with the corresponding convex structure in the valve body (1), and the valve core structure of the ring type multi-way valve is arranged. ​ ​ ​ ​ ​ ​ ​ ​ 2. The ring-type multi-way spool valve structure according to claim 1, characterized by: ​ 3. The ring-type multi-way spool valve structure according to claim 1, characterized by: ​ 4. The ring-type multi-way spool valve structure according to claim 1, characterized by: ​ 5. A water valve characterized by, ​

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