CN115949773A - Cross five-way valve core structure and water valve - Google Patents

Abstract

The invention discloses a cross five-way valve core structure and a water valve, which comprise a valve body, wherein 5 circulation holes are arranged at the bottom end of the valve body in a cross manner, and each circulation hole comprises a fifth circulation hole positioned in the middle and a first circulation hole, a second circulation hole, a third circulation hole and a fourth circulation hole which are arranged on the periphery; the valve seat is arranged in the valve body and clings to the bottom of the valve body, and a through hole corresponding to the circulation hole is formed in the valve seat; the sealing gasket is tightly attached between the valve body and the valve seat, the shape of the sealing gasket is matched with that of the valve seat, the valve core is arranged in the valve body and tightly attached to the valve seat, the center of the valve core is overlapped with that of the valve body, the end face, facing the valve seat, of the valve core is divided into a first cavity, a second cavity and a third cavity through the flow baffle plate, the first cavity is always communicated with the fifth circulation hole, and the second cavity and the third cavity are symmetrically arranged on two sides of the first cavity. The electronic water valve is simple in structure, and can solve the problems of large volume and large fluid resistance of the existing electronic water valve.

Description

Cross five-way valve core structure and water valve

Technical Field

The invention relates to the field of water valves, in particular to a light-weight, intelligent, low-energy-consumption, quick-response and high-precision cross five-way valve core structure and a water valve.

Background

In recent years, with the rapid development of new energy automobile industry, the thermal management system of the new energy automobile is more and more integrated and intelligent. Compared with the traditional fuel oil automobile, the new energy automobile has a greatly different thermal management system due to different driving forms and energy architectures. The driving motor of the new energy automobile requires high power and high rotating speed, so that a large amount of heat can be generated in the high-speed driving process, and the performance and the service life of the motor can be seriously influenced if the heat is not taken away in time; in order to improve the cruising ability, automobile manufacturers often select the power battery with high energy density and high discharge rate, but the battery generates a large amount of heat in the use process due to the excessively high energy density and discharge rate, the service life of the battery is influenced due to the excessively high temperature, and safety accidents are easily caused. The heat management system of the new energy automobile is complex, the temperature control requirements of different working systems are different, and therefore the flow of cooling liquid flowing to each working system is different. Therefore, the new energy automobile needs an efficient thermal management system to ensure the stable operation of the automobile, and the temperature control problem of the new energy automobile faces a great challenge. With the stricter policy of energy conservation and emission reduction, the traditional automobile thermostat has the defects of ' response delay ', hysteresis characteristic ' and the like, the circulation is poor, the flow is difficult to accurately control, the heat management efficiency is low, and the high requirement of a new energy automobile on temperature control cannot be met. Therefore, the thermal management system of the traditional automobile is gradually optimized, and the electronic water valve is used for replacing the traditional thermostat to regulate the cooling liquid on part of automobile models.

An electronic water valve is a novel cooling liquid flow regulating valve in a new energy automobile heat management system, and is similar to a thermostat of a traditional fuel vehicle in functional action and working principle. The main function is to adaptively adjust the flow rate of cooling liquid of each pipeline according to the temperature change of different working parts, and ensure that batteries, motors and the like are in the optimal working temperature environment, so as to achieve the purposes of saving energy, reducing emission and improving the energy utilization rate.

At present, for the structural design of an electronic five-way water valve, a column valve structure is usually adopted, outlet flow channels on the outer side of the column valve are distributed on the side wall, a flow channel is also arranged on a middle valve core, and the purpose of switching different modes of a valve body can be realized by switching the flow channel, changing the flow direction and adjusting the flow rate through rotating the valve core. The function of flow proportion regulation can be realized by designing the structures of the valve core and the valve seat. However, since the outer side flow channels are distributed on the side wall, and the water inlet and outlet directions are vertical, the fluid needs to be reversed for many times when flowing through the valve core, so that the pressure drop of the fluid is greatly increased, the energy is wasted, the service lives of a thermal management system and other elements are seriously influenced, and even a safety accident is caused. In addition, the side wall flow channel of the water valve also enables the whole valve body to be large in size, so that the miniaturization and the light weight of a thermal management system are not facilitated, and the arrangement of other elements and the flow channel on the thermal management system is influenced; and the response time and the adjustment precision of the flow adjustment of the water valve are influenced greatly by the large volume.

Disclosure of Invention

The invention provides a cross five-way valve core structure and a water valve with light weight, intellectualization, low energy consumption, quick response and high precision, which have simple structures and can solve the problems of larger volume and larger fluid resistance of the existing electronic water valve.

In order to achieve the above object, in a first aspect, the present invention provides the following technical solutions: a cross five-way valve core structure comprises a valve body, wherein 5 circulation holes are arranged at the bottom end of the valve body in a cross manner, and each circulation hole comprises a fifth circulation hole positioned in the middle and a first circulation hole, a second circulation hole, a third circulation hole and a fourth circulation hole which are arranged on the periphery; the valve seat is arranged in the valve body and clings to the bottom of the valve body, and a through hole corresponding to the circulation hole is formed in the valve seat; the sealing gasket is tightly attached between the valve body and the valve seat, and the shape of the sealing gasket is matched with that of the valve seat; the valve core is arranged in the valve body and is tightly attached to the valve seat, the center of the valve core is overlapped with the center of the valve body, the end face, facing the valve seat, of the valve core is divided into a first cavity, a second cavity and a third cavity through the flow blocking plate, circulation among the circulation holes is switched through rotation of the valve core, the first cavity is communicated with a fifth circulation hole all the time, the second cavity and the third cavity are symmetrically arranged on two sides of the first cavity, the second cavity and the third cavity are used for being communicated with specific adjacent circulation holes which are distributed in the circumferential direction, the flow blocking plate at the junction of the second cavity and the third cavity can be divided into flow rates of specific flow channels according to proportion under specific angles, and due to the fact that the cavity is simple in structure, the pressure drop and the flow loss of fluid can be greatly reduced, the performance of the water valve is improved, the energy consumption is reduced, and the precision is improved.

Preferably, the first central angle θ of the flow hole occupying the bottom end position of the valve body is 45 °, the diameter of the flow hole is Φ, the distance X between the center of the valve body and the center of the flow hole, and the thickness of the baffle plate is t, X =1.3 (Φ + t), and in this state, the volume of the entire valve body can be minimized.

Preferably, the first cavity is in a gourd shape, the second cavity and the third cavity are in fan shapes, the fan-shaped second cavity and the fan-shaped third cavity can have large enough area and central angle, the side wall of the gourd-shaped first cavity is smooth and small in flow resistance, and the fifth circulation hole and the other specific circulation hole can be always kept communicated under the proportional mode of the valve core.

Preferably, the second central angle α 1 of the first cavity is =90 °, and the third central angle α 2 of the second cavity B and the fourth central angle α 3 of the third cavity are both 135 °.

Preferably, the fifth circulation hole is a normally open hole, the top of the first cavity is provided with a balance hole communicated with the inner cavity of the valve body on the upper side of the valve core, and when the water valve works, fluid can flow upwards out of the balance hole under the action of hydraulic pressure to fill the inside of the valve body, so that the upper hydraulic pressure and the lower hydraulic pressure of the valve core can be kept balanced when the water valve works stably, the valve core can be ensured to be tightly attached to the valve seat, and the leakage of the fluid is effectively prevented.

Preferably, the corners of the side walls of the first cavity, the second cavity and the third cavity are all arc corner transitions, so that the pressure drop and the flow loss of fluid can be greatly reduced, the performance of the water valve is improved, and the energy consumption is reduced.

Preferably, the corners of the top surfaces and the side walls of the first cavity, the second cavity and the third cavity are all arc corner transitions, so that the pressure drop and the flow loss of fluid can be greatly reduced, the performance of the water valve is improved, and the energy consumption is reduced.

Preferably, the edge of the valve seat is provided with at least one limiting groove, and the limiting groove is matched with the corresponding protruding structure in the valve body, so that the valve seat can be effectively prevented from rotating, and the valve seat and the circulation hole of the valve body are prevented from being dislocated.

In a second aspect, the present invention also provides a water valve comprising a cross-shaped five-way valve cartridge structure as described in the first aspect.

Compared with the prior art, the invention has the beneficial effects that:

the outer side runners are distributed at the bottom of the valve body in a cross shape, so that the volume of the valve body is reduced, the whole light weight of the water valve is realized, and other elements and runners on the thermal management system are more freely arranged; the valve core and the valve seat are more miniaturized, the switching of various different modes can be realized, the integration of a thermal management system is facilitated, and the arrangement and the installation of a water valve on the thermal management system are facilitated; the switching of six different modes can be realized at a specific angle, which is beneficial to the integration of a thermal management system and is convenient for the arrangement and installation of a water valve on the thermal management system; the corners of the flow channel in the valve are few, the backflow of fluid is small, the flow resistance and flow loss are small, the pressure drop is low, and the energy loss is less; the response is quicker, the cooling is quicker, and the safety of the automobile is improved.

Drawings

FIG. 1 is an exploded perspective view of the valve cartridge structure of the present invention;

FIG. 2 is a block diagram of the valve cartridge of the present invention;

FIG. 3 is a schematic view of the distribution of flow holes of the present invention;

FIG. 4 is a parametric illustration of the valve core and valve seat cooperation of the present invention;

FIG. 5 is a schematic diagram of a first operating mode of the present invention;

FIG. 6 is a schematic diagram of a second mode of operation of the present invention;

FIG. 7 is a schematic view of a third mode of operation of the present invention;

FIG. 8 is a schematic illustration of mode four of operation of the present invention;

FIG. 9 is a schematic illustration of the fifth mode of operation of the present invention;

fig. 10 is a schematic diagram of a sixth operating mode of the present invention.

Reference numerals are as follows:

1. the valve comprises a valve body, 2, a valve seat, 3, a valve core, a first flow through hole, B, a second flow through hole, C, a third flow through hole, d, a fourth flow through hole, e, a fifth flow through hole, f, a limiting groove, g, a flow baffle plate, A, a first cavity, B, a second cavity, C, a third cavity, h, a balance hole, theta, a first central angle, alpha 1, a second central angle, alpha 2, a third central angle, alpha 3 and a fourth central angle.

Detailed Description

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

As shown in fig. 1 to 10, in order to solve the problems of large volume and large fluid resistance of the existing electronic water valve, the invention provides the following technical scheme: a cross five-way valve core structure comprises a valve body 1, wherein 5 circulation holes are arranged at the bottom end of the valve body 1 in a cross manner, and each circulation hole comprises a fifth circulation hole e positioned in the middle and a first circulation hole a, a second circulation hole b, a third circulation hole c and a fourth circulation hole d which are arranged on the periphery; the valve seat 2 is arranged in the valve body 1 and clings to the bottom of the valve body 1, and a through hole corresponding to the circulation hole is formed in the valve seat 2; the valve comprises a sealing gasket 4, wherein the sealing gasket 4 is tightly attached between a valve body 1 and a valve seat 2, the shape of the sealing gasket 4 is matched with that of the valve seat 2, a valve core 3 is arranged inside the valve body 1 and tightly attached to the valve seat 2, the center of the valve core 3 is overlapped with the center of the valve body 1, the end face, facing the valve seat 2, of the valve core 3 is divided into a first cavity A, a second cavity B and a third cavity C through a flow baffle g, the flow between circulation holes is switched through the rotation of the valve core 3, the first cavity A is always communicated with a fifth circulation hole e, the second cavity B and the third cavity C are symmetrically arranged on two sides of the first cavity A, the second cavity B and the third cavity C are used for communicating specific adjacent circulation holes which are circumferentially distributed, the flow baffle g at the junction of the second cavity B and the third cavity C can proportionally divide the flow of a specific flow channel under a specific angle, and the cavity structure is simple, so that the pressure drop and the flow loss of fluid can be greatly reduced, the performance of the valve, the high water consumption is improved, and the precision is improved.

Specifically, the first cavity a is always communicated with the fifth circulation hole e, the fifth circulation hole e is set to be a normally open hole, the top of the first cavity a is provided with a balance hole h communicated with the inner cavity of the valve body 1 on the upper side of the valve core 3, when the water valve works, fluid can upwards flow out of the balance hole h under the hydraulic action to fill the inside of the valve body 1, so that the upper hydraulic pressure and the lower hydraulic pressure of the valve core 3 can be kept balanced when the water valve works stably, the valve core 3 can be ensured to be tightly attached to the valve seat 2, and fluid leakage is effectively prevented. The first cavity A is in a gourd shape, the second cavity B and the third cavity C are both in a fan shape, the fan-shaped second cavity B and the fan-shaped third cavity C can have a large enough area and a central angle, the side wall of the gourd-shaped first cavity A is smooth and small in flow resistance, and the fifth circulation hole e and another specific circulation hole can be always kept communicated by the valve core 3 in a proportional mode.

The lateral wall corner of first cavity A, second cavity B and third cavity C be the circular arc corner transition simultaneously the top surface of first cavity A, second cavity B and third cavity C and the corner of lateral wall be the circular arc corner transition, can impact the top surface earlier when the fluid enters into first cavity A, second cavity B and third cavity C, can carry out abundant direction buffering through circular arc corner transition, can reduce fluidic pressure drop and flow loss greatly, improve the performance of water valve, reduce the energy consumption.

According to the preset mode requirement, under the condition of meeting the requirements of the flow aperture, the valve core thickness and the like, the flow holes are distributed most closely, as shown in fig. 3 and 4, a fifth flow hole e is arranged at the circle center of the valve seat 2, the other four holes are uniformly distributed in four orthogonal directions, under the limitation of the preset mode, the central angle theta occupied by each flow hole meets the condition that theta is not more than 45 degrees, if the diameter of each flow hole is phi, the distance x between the flow hole at the side edge and the circle center is not less than (phi/2)/sin (45 degrees/2) is approximately equal to 1.3 phi, and the volume of the whole valve body can be minimized under the condition. If the thickness t of the flow baffle plate of the valve core 3 is considered, x is more than or equal to 1.3 (phi + t). When x =1.3 (Φ + t), the volume of the entire valve body can be minimized.

Under the requirement of the preset mode, as shown in fig. 4, the second central angle α 1 of the first cavity a is =90 °, and the third central angle α 2 of the second cavity B and the fourth central angle α 3 of the third cavity C are both 135 °.

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 effectively prevented from rotating, and the valve seat 2 and the circulation hole of the valve body 1 are prevented from being dislocated.

In this embodiment, the water valve further includes a water valve, where the cross-shaped five-way valve core structure described above is applied, and in this embodiment, there are 6 modes, where a rotation angle of the valve core 3 is 0 ° to 235 °, and an angle of the valve core is at a position of 0 ° at the beginning, as shown in fig. 5 to 10, and specifically as shown in table 1 below:

table 1: working mode indication table

Wherein, c-e, d-e, a-c and b-c in the table mean that different circulation holes are communicated, for example, c-e means that a third circulation hole c is communicated with a fifth circulation hole e, and the first working mode to the sixth working mode respectively correspond to the figures 5-10.

When the water valve starts to work, the valve core 3 is driven by the motor to rotate, so that different flow channels are communicated to reach a preset mode, a circulating medium flows in from a preset inlet flow channel, flow direction and flow regulation of the different flow channels are realized under the switching of the flow channel modes of the valve core, and then the circulating medium flows out from an outlet flow channel, and finally the temperature regulation effect of the heat management system is achieved.

It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims (9)

1. The utility model provides a cross five-way valve core structure which characterized in that includes:

the valve comprises a valve body (1), wherein 5 circulation holes are arranged at the bottom end of the valve body (1) in a cross manner, and each circulation hole comprises a fifth circulation hole (e) positioned in the middle and a first circulation hole (a), a second circulation hole (b), a third circulation hole (c) and a fourth circulation hole (d) which are arranged on the periphery;

the valve seat (2) is arranged in the valve body (1) and clings to the bottom of the valve body (1), and a through hole corresponding to the circulation hole is formed in the valve seat (2);

the sealing gasket (4) is tightly attached between the valve body (1) and the valve seat (2), and the shape of the sealing gasket (4) is matched with that of the valve seat (2);

the valve core (3) is arranged in the valve body (1) and is tightly attached to the valve seat (2), the center of the valve core (3) is overlapped with the center of the valve body (1), the end face, facing the valve seat (2), of the valve core (3) is divided into a first cavity (A), a second cavity (B) and a third cavity (C) through a flow baffle plate (g), circulation among the circulation holes is switched through rotation of the valve core (3), the first cavity (A) is always communicated with a fifth circulation hole (e), and the second cavity (B) and the third cavity (C) are symmetrically arranged on two sides of the first cavity (A).

2. The cross five-way valve core structure according to claim 1, wherein: the first central angle theta of the bottom end position of the valve body (1) occupied by the flow hole is 45 degrees, the diameter of the flow hole is phi, the distance X between the center of the valve body (1) and the center of the flow hole is obtained, the thickness of the flow baffle plate (g) is t, and X =1.3 (phi + t).

3. The cross five-way valve core structure according to claim 1, wherein: the first cavity (A) is in a gourd shape, and the second cavity (B) and the third cavity (C) are both in a fan shape.

4. The annular five-way valve core structure according to claim 3, wherein: the second central angle α 1 of the first cavity (a) =90 °, and the third central angle α 2 of the second cavity (B) and the fourth central angle α 3 of the third cavity (C) are both 135 °.

5. The cross five-way valve core structure according to claim 2, wherein: the fifth circulation hole (e) is a normally open hole, and the top of the first cavity (A) is provided with a balance hole (h) communicated with the inner cavity of the valve body (1) on the upper side of the valve core (3).

6. The cross five-way valve core structure according to claim 1, wherein: and the corners of the side walls of the first cavity (A), the second cavity (B) and the third cavity (C) are all arc corner transitions.

7. The cross five-way valve core structure according to claim 1, wherein: and the corners of the top surfaces and the side walls of the first cavity (A), the second cavity (B) and the third cavity (C) are all arc corner transitions.

8. The cross-shaped five-way valve core structure according to claim 1, characterized in that: the edge of the valve seat (2) is provided with at least one limiting groove (f), and the limiting groove (f) is matched with a corresponding protruding structure in the valve body (1).

9. A water valve comprising the cross-shaped five-way valve core structure according to any one of claims 1 to 8.

Images