Valve plate component of electric control silicone oil clutch water pump

Abstract

The utility model discloses a valve plate component of an electric control silicone oil clutch water pump, which comprises an elastic sheet, baffle plates and an armature, the elastic sheet and the baffle plates are fixed on the armature, and the baffle plates comprise an oil inlet baffle plate matched with an oil outlet of the electric control silicone oil clutch water pump and an oil return baffle plate matched with an oil return port of the electric control silicone oil clutch water pump. The electric control silicone oil clutch water pump drives the elastic piece to move through electromagnetic induction, and thirteen radial grooves are formed in the lower end face of the armature. The space between the inner side wall and the outer side wall of the armature is wide in top and narrow in bottom, so that the inner side wall and the outer side wall form inclined planes relative to a vertical line, and the draft angle of each inclined plane is 4 degrees. According to the valve plate component of the electric control silicone oil clutch water pump, the magnetic conduction performance of the valve plate component can be improved, the response time is shortened, and the magnetic conduction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch water pumps, and particularly relates to a valve plate component of an electronically controlled silicone oil clutch water pump. Background Art

[0002] An electronically controlled silicone oil clutch water pump is a device that can automatically adjust the rotation speed of the water pump impeller according to the working temperature of the engine to control the water pump to pump coolant. The electronically controlled silicone oil clutch water pump generates magnetic force through the energization of the wire harness assembly. Due to the action of the electromagnetic force, the valve plate component (usually including a magnetic armature and other magnetic conductive materials) will move to one side of the water pump housing. The movement of the valve plate component will simultaneously close the oil inlet hole (preventing new silicone oil from entering the working chamber) and open the oil return hole (allowing the silicone oil in the working chamber to flow back to the oil storage chamber). The silicone oil no longer enters the working chamber and flows back to the oil storage chamber under the action of centrifugal force, and the operating speed of the water pump decreases, thereby reducing the load of the engine and achieving an energy-saving effect; when the wire harness assembly is powered off, the electromagnetic force disappears, and the valve plate component opens the oil inlet hole and closes the oil return hole under the action of its own restoring force. The silicone oil is sucked from the oil storage chamber into the working chamber, and the driven plate in the water pump is accelerated to high-speed operation under the action of the silicone oil shear force, and the water pump enters the full-speed operation state, and the power is transmitted through the shaft-connected bearing to drive the water pump impeller to run at high speed.

[0003] During the separation or engagement of the valve plate component, the magnetic armature, as an important part of the valve plate component for magnetic conduction, its magnetic conduction performance will directly affect the transmission efficiency of the electromagnetic force. Different magnetic conduction degrees will affect the response time of the product. Strong magnetic conduction ability means faster response time and more efficient cooling effect. Therefore, how to optimize the structural design of the magnetic armature and further improve the magnetic conduction performance of the valve plate component is a technical problem to be solved urgently. Summary of the Utility Model

[0004] In view of the above deficiencies existing in the current electronically controlled silicone oil clutch water pump, the utility model provides a valve plate component of an electronically controlled silicone oil clutch water pump, which can improve the magnetic conduction performance of the valve plate component, shorten the response time, and improve the magnetic conduction efficiency.

[0005] To achieve the above object, the embodiments of the utility model adopt the following technical solutions:

[0006] A valve plate component of an electronically controlled silicone oil clutch water pump includes a spring piece, a retaining piece and a magnetic armature. The spring piece and the retaining piece are fixed on the magnetic armature. The retaining piece includes an oil inlet retaining piece that cooperates with the oil outlet of the electronically controlled silicone oil clutch water pump and an oil return retaining piece that cooperates with the oil return port of the electronically controlled silicone oil clutch water pump. The electronically controlled silicone oil clutch water pump drives the spring piece to move through electromagnetic induction. Thirteen radial grooves are provided on the lower end surface of the magnetic armature; the upper part between the inner and outer side walls of the magnetic armature is wider than the lower part, so that the inner and outer side walls form inclined surfaces relative to the vertical line, and the draft angle of the inclined surface is 4°.

[0007] In one embodiment, the depth of the radial groove is 1.5 mm and the width is 4 mm.

[0008] In one embodiment, the oil inlet baffle is bent into a "C" shape and is divided into a lower horizontal piece, a vertical piece, and an upper horizontal piece from bottom to top. The oil return baffle is bent into a "Z" shape and is divided into a lower horizontal piece, a vertical piece, and an upper horizontal piece from bottom to top.

[0009] In one embodiment, the lower horizontal pieces of the oil inlet baffle and the oil return baffle are both flat against the elastic piece and fixed by rivets.

[0010] In one embodiment, the angle between the upper horizontal piece of the oil inlet baffle and the horizontal plane is -1 to -4°, and the angle between the upper horizontal piece of the oil return baffle and the horizontal plane is 1 to 4°.

[0011] In one embodiment, the material of the elastic piece is stainless steel, the overall structure is circular ring-shaped, the thickness is 0.5 to 0.6 mm, and a hollow structure is provided on the disk surface of the elastic piece.

[0012] In one embodiment, an anti-misalignment groove is provided on the elastic piece. The included angle between the two edges of the anti-misalignment groove is 60°, and the width is 9 to 10 mm.

[0013] In one embodiment, the armature is circular ring-shaped, and a circular groove is further provided on the lower end surface of the armature.

[0014] In one embodiment, the angle h range between adjacent radial grooves is 15° to 52°.

[0015] The beneficial effect of the present utility model lies in providing a valve plate component of an electronically controlled silicone oil clutch water pump, including an elastic piece, a baffle, and an armature. Thirteen radial grooves are provided on the lower end surface of the armature; the upper part between the inner and outer side walls of the armature is wider and the lower part is narrower, so that the inner and outer side walls form inclined planes relative to the vertical line, and the draft angle of the inclined plane is 4°. By increasing the number of grooves on the armature, the area of the magnetic induction lines generated by the solenoid (or wire harness assembly) passing through the armature is increased, the magnetic flux efficiency is improved, thereby enhancing the magnetic force, which helps to attract the valve plate component more quickly and stably when energized and improves the response speed; the radial grooves allow silicone oil to flow freely between the inner and outer sides of the armature, ensuring that the pressures on both sides are the same, promoting the flow and pressure balance of the silicone oil; after the radial grooves are added to the armature, when the armature moves and contacts the silicone oil, the initial contact area is reduced, which helps the valve plate component to start moving faster under the action of electromagnetic force and is easier to descend; the increase in the draft angle makes the side walls of the armature form a certain inclined plane, which helps to reduce the viscous force of the silicone oil on the armature and reduces the resistance that needs to be overcome when the valve plate component returns to its initial position under the action of its own restoring force, and the valve plate component can return to the initial position more smoothly. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 Schematic structural diagram of the valve plate component described in the present invention;

[0018] Figure 2 Schematic back structure diagram of the valve plate component described in the present invention;

[0019] Figure 3 Schematic structural diagram of the armature described in the present invention;

[0020] Figure 4 Schematic inner wall structure diagram of the armature described in the present invention;

[0021] Figure 5 Schematic structural diagram of the armature in the working state described in the present invention;

[0022] Figure 6 Schematic diagram of the working state of the armature before improvement;

[0023] Figure 7 Schematic diagram of the working state of the improved armature.

[0024] Reference numerals are: 1, elastic sheet; 2, retaining sheet; 21, oil inlet retaining sheet; 22, oil return retaining sheet; 3, armature; 31, radial groove; 32, annular groove; 4, rivet; 5, anti-misalignment groove. Detailed implementation manners

[0025] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figures 1 to 7 As shown, a valve plate component of an electric-controlled silicone oil clutch water pump includes a spring plate 1, a baffle plate 2 and an armature 3. The spring plate 1 and the baffle plate 2 are fixed on the armature 3. The baffle plate 2 includes an oil inlet baffle plate 21 matched with the oil outlet of the electric-controlled silicone oil clutch water pump and an oil return baffle plate 22 matched with the oil return port of the electric-controlled silicone oil clutch water pump. The electric-controlled silicone oil clutch water pump drives the spring plate 1 to move by electromagnetic induction. The oil inlet baffle plate 21 and the oil return baffle plate 22 are both made of spring steel or stainless steel, and the oil inlet baffle plate 21 and the oil return baffle plate 22 are staggered by a certain height and have a height difference.

[0029] In this embodiment, the oil inlet baffle 21 is bent into a "匚" shape, which is divided into a lower horizontal piece, a vertical piece, and an upper horizontal piece from bottom to top, and the oil return baffle 22 is bent into a "Z" shape, which is divided into a lower horizontal piece, a vertical piece, and an upper horizontal piece from bottom to top. The lower horizontal piece of the oil inlet baffle 21 and the lower horizontal piece of the oil return baffle 22 are connected as a whole and flatly attached to the spring sheet 1 and fixed by rivets 4. When not under force, the angle between the upper horizontal piece of the oil inlet baffle 21 and the horizontal plane is -1~-4°, preferably -3°, and the angle between the upper horizontal piece of the oil return baffle 22 and the horizontal plane is 1~4°, preferably 3°. The spring sheet 1, the oil inlet baffle 21 and the oil return baffle 22 can offset the deformation generated when subjected to force, ensuring that the upper horizontal piece of the oil inlet baffle 21 and the upper horizontal piece of the oil return baffle 22 are in a horizontal state during operation, thereby avoiding the leakage of silicone oil and forming a constant shear force on the silicone oil.

[0030] In this embodiment, thirteen radial grooves 31 are provided on the lower end surface of the armature 3; the upper part between the inner and outer side walls of the armature 3 is wider and the lower part is narrower, so that the inner and outer side walls form inclined planes relative to the vertical line, and the draft angle of the inclined plane is 4°. The armature is of an annular structure, and a ring groove 32 is also provided on the lower end surface of the armature. Increasing the number of grooves on the armature is actually an optimization of the magnetic circuit structure. The added grooves can change the magnetic field distribution, making the path of the magnetic flux inside the armature 3 more complex but more uniform. The complex magnetic circuit path helps to increase the magnetic flux. When the magnetic field passes through the armature 3, it will experience more "turns" and "diffusions", thereby increasing the overall magnetic flux. The increase in magnetic flux means that the electromagnet has a stronger attraction to the valve plate component, so the response time of the valve plate component after the electromagnet is energized will be shorter.

[0031] In addition, the radial grooves 31 allow silicone oil to flow freely between the inner and outer sides of the armature, thus keeping the pressure on both sides consistent, promoting the flow of silicone oil and pressure balance, and enabling the valve plate component to respond faster when subjected to electromagnetic force. When the radial grooves 31 are added to the armature, at the moment when the armature starts to move and contacts the silicone oil, due to the existence of the radial grooves, the plane area actually in direct contact with the silicone oil will relatively decrease. The decrease in the initial contact area means that at the initial stage of movement, the resistance from the silicone oil received by the valve plate component will also decrease correspondingly, which helps the valve plate component to start moving faster under the action of electromagnetic force, that is, it is easier to descend.

[0032] The inclined plane has a certain draft angle, making the structure of the armature 3 "wider at the top and narrower at the bottom". The appropriate draft angle helps to guide the flow direction of the silicone oil. When the silicone oil flows through the side wall of the armature 3, the draft angle can make the silicone oil flow more easily along the wall surface instead of forming stagnation or eddy currents on the wall surface, which helps to reduce the viscous resistance of the silicone oil to the armature 3. In an electronically controlled silicone oil clutch water pump, the descending speed of the valve plate component is affected by the viscous force of the silicone oil. By reducing the viscous force of the silicone oil, the resistance received by the valve plate component during the descending process can be reduced, and the valve plate component can return to the initial position more smoothly. Therefore, by adding multiple radial grooves 31 to the armature and adding a draft angle to the side wall, the magnetic flux can be increased and the viscous force of the silicone oil can be reduced, thereby optimizing the performance of the electronically controlled silicone oil clutch water pump and improving the response speed and control level accuracy of the product.

[0033] As Figure 3 shown, the angle h range between adjacent bosses 31 is 15° - 52°. A total of 13 radial grooves 31 are provided on the armature 3. Starting from the horizontal right side of the armature 3 counterclockwise, the angles occupied by the radial grooves 31 are 15°, 35°, 20°, 52°, 20°, 20°, 32°, 20°, 20°, 32°, 20°, 20°, 32° in sequence. The depth of each radial groove 31 is 1.5 mm and the width is 4 mm.

[0034] In this embodiment, the material of the elastic piece 1 is stainless steel. The overall structure is annular, with a thickness of 0.5 - 0.6 mm. The disk surface of the elastic piece 1 is provided with a hollow structure. When the electro-controlled silicone oil clutch is powered on, the solenoid inside it generates an electromagnetic effect and attracts the elastic piece 1 and the armature 3. When the clutch is powered off, the magnetic force disappears, and the elastic piece 1 and the armature 3 return freely. The elastic piece 1 reciprocates and drives the baffle 2 to move, realizing the alternating change of closing / opening of the oil outlet and the oil return port. The elastic piece 1 can be formed by stamping. The elastic piece 1 is also provided with an anti-misalignment groove 5. The included angle between the two edges of the anti-misalignment groove 5 is 60°, and the width is 9 - 10 mm, preventing the influence of the burr flanging direction on the assembly, and at the same time ensuring the accurate assembly position of the oil return baffle 22 and the oil inlet baffle 21. The above dimensions can be flexibly determined according to the requirements of die design.

[0035] The above embodiment is a preferred implementation scheme of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the scope of the patent of the present utility model.

[0036] In order to make it more convenient for those of ordinary skill in the art to understand the improvements of the present utility model over the prior art, some of the drawings and descriptions of the present utility model have been simplified. And for the sake of clarity, some other elements have also been omitted in this application document. Those of ordinary skill in the art should be aware that these omitted elements may also constitute the content of the present utility model.

Claims

1. A valve plate component of an electronically controlled silicone oil clutch water pump, comprising a leaf spring (1), a retaining plate (2) and an armature (3). The leaf spring (1) and the retaining plate (2) are fixed on the armature (3). The retaining plate (2) includes an oil inlet retaining plate (21) that cooperates with the oil outlet of the electronically controlled silicone oil clutch water pump and an oil return retaining plate (22) that cooperates with the oil return port of the electronically controlled silicone oil clutch water pump. The electronically controlled silicone oil clutch water pump drives the movement of the leaf spring (1) through electromagnetic induction, and is characterized in that, The lower end surface of the armature (3) is provided with thirteen radial grooves (31); the inner and outer side walls of the armature (3) are wider at the top and narrower at the bottom, so that the inner and outer side walls form inclined surfaces relative to the vertical line, and the draft angle of the inclined surface is 4°.

2. The valve plate component of the electronically controlled silicone oil clutch water pump according to claim 1, wherein The radial groove (31) has a depth of 1.5 mm and a width of 4 mm.

3. The valve plate component of the electronically controlled silicone oil clutch water pump according to claim 1, characterized in that, The oil inlet baffle (21) is bent into a "匚" shape and is divided into a lower horizontal piece, a vertical piece, and an upper horizontal piece from bottom to top. The oil return baffle (22) is bent into a "Z" shape and is divided into a lower horizontal piece, a vertical piece, and an upper horizontal piece from bottom to top.

4. The valve plate component of the electronically controlled silicone oil clutch water pump according to claim 3, characterized in that, The lower transverse piece of the oil inlet baffle (21) and the lower transverse piece of the oil return baffle (22) are both flatly attached to the elastic sheet (1) and fixed by rivets (4).

5. The valve plate component of the electronically controlled silicone oil clutch water pump according to claim 4, characterized in that, The included angle between the upper transverse piece of the oil inlet baffle (21) and the horizontal plane is -1 to -4°, and the included angle between the upper transverse piece of the oil return baffle (22) and the horizontal plane is 1 to 4°.

6. The valve plate component of the electronically controlled silicone oil clutch water pump according to claim 1, wherein The material of the spring piece (1) is stainless steel, and the whole is in a circular ring structure with a thickness of 0.5 to 0.6 mm. A hollow structure is provided on the disk surface of the spring piece (1).

7. The valve plate component of the electronically controlled silicone oil clutch water pump according to claim 1, characterized in that, The spring sheet (1) is provided with an anti-error groove (5), the angle between two edges of the anti-error groove (5) is 60°, and the width is 9-10 mm.

8. The valve plate component of the electronically controlled silicone oil clutch water pump according to claim 1, characterized in that, The armature is a circular ring structure, and a ring-shaped groove (32) is provided on the lower end surface of the armature.

9. The valve plate component of the electronically controlled silicone oil clutch water pump according to any one of claims 1 to 8, characterized in that, The angle h between adjacent radial grooves (31) ranges from 15° to 52°.

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