Valve element for new energy vehicle

Abstract

The utility model relates to a valve core for a new energy vehicle, which belongs to the technical field of electromagnetic valves and comprises a valve casing, an outer valve seat is arranged at an opening of the valve casing, a first connecting cavity is arranged on the outer end face of the outer valve seat, a first valve cavity is arranged on the inner end face of the outer valve seat, and a metal valve sleeve is fixedly arranged in the first connecting cavity. A second valve cavity is formed in the inner end face of the metal valve sleeve, an oil supply port is formed in the outer end face of the metal valve sleeve, an oil discharge port is formed in the side wall of an exposed part, a control cavity is formed in the metal valve sleeve, and an inner valve seat assembly and a valve element assembly are further arranged in the valve shell. The valve element assembly comprises a metal valve element and a screw rod, the metal valve element is movably arranged in the second valve cavity and the control cavity, a conical head is arranged at the front end of the metal valve element, the screw rod is screwed in a screw rod sleeve, and one end of the screw rod is exposed out of the screw rod sleeve and then is connected with the metal valve element; and the rotor assembly is used for driving the screw rod to rotate. The screw rod assembly is higher in reliability.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic valve technology, specifically relating to a valve core for new energy vehicles. Background Technology

[0002] There is a valve core for new energy vehicles. The electromagnetic force generated by the switching on and off of an electromagnetic coil drives a magnet to move the valve core. The valve core controls the opening of the oil supply port by contacting a sealing gasket. Since the valve core and the sealing gasket are in flexible contact, they will wear out significantly after repeated switching, resulting in a decrease in sealing performance and thus affecting the function of the valve. Utility Model Content

[0003] The present invention aims to improve the above-mentioned deficiencies of existing valve cores for new energy vehicles.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A valve core for new energy vehicles, comprising:

[0006] Valve housing; the valve housing is a cylindrical body that is open at one end and closed at the other end;

[0007] External valve seat; one end of the external valve seat is inserted and fixed in the opening of the valve housing, and the other end protrudes outside the valve housing. Its outer end face is provided with a first connecting cavity, and its inner end face is provided with a first valve cavity that is linearly connected to the first connecting cavity.

[0008] Metal valve sleeve; the metal valve sleeve is fixedly installed in the first connecting cavity with its inner end protruding into the first valve cavity and its outer end protruding out of the outer valve seat. The inner end face of the metal valve sleeve is provided with a second valve cavity, the outer end face is provided with an oil supply port, the exposed side wall is provided with an oil drain port, and the inside is provided with a control cavity. The control cavity is linearly connected to the second valve cavity and the oil supply port and L-shapedly connected to the oil supply port and the oil drain port.

[0009] An inner valve seat assembly includes a screw sleeve and an electromagnetic coil. The screw sleeve is disposed inside the valve housing, with one end inserted and fixed inside the first valve cavity and sleeved and fixed to the inner end of the valve sleeve. The electromagnetic coil is sleeved around the outside of the screw sleeve.

[0010] Valve core assembly; the valve core assembly includes a metal valve core and a screw. The metal valve core is movably disposed in the second valve chamber and the control chamber. Its front end is provided with a conical head for closing and opening the inner port of the oil supply port. The screw is screwed into the screw sleeve and one end of the screw protrudes from the screw sleeve and is connected to the metal valve core.

[0011] The rotor assembly includes a sleeve, a rod seat, and a permanent magnet. The sleeve is movably disposed within the pump casing and sleeved onto the screw. The rod seat is fixedly disposed within the sleeve and fixedly connected to the screw. The permanent magnet is L-shaped, with one bent surface fixed to the rod seat and the other bent surface located around the electromagnetic coil, so that it can be driven to rotate by the electromagnetic coil, thereby driving the sleeve, rod seat, and screw to rotate together.

[0012] As a preferred embodiment, the rear end face of the metal valve core is provided with a third connecting cavity, and a piston and a buffer spring are provided inside the third connecting cavity. The buffer spring is located inside the piston and supports the piston and the bottom of the third connecting cavity at both ends respectively. A cavity cover is fixedly provided at the cavity opening of the third connecting cavity, and the screw passes through the through hole provided on the cavity cover and is connected to the piston.

[0013] As a preferred embodiment, the electromagnetic coils are provided in two sets, which are used to drive the permanent magnet to rotate in the forward and reverse directions, respectively.

[0014] As a preferred embodiment, the rod holder includes a circular ring and a cross-shaped part disposed inside the circular ring. The circular ring is embedded and fixed in a groove provided on the inner wall of the sleeve, and the screw is inserted and fixed in a rod hole provided at the center of the cross-shaped part.

[0015] The valve core and valve sleeve of this utility model are both made of metal. The metal valve core makes rigid contact with the oil supply port on the metal valve sleeve through its conical head, which helps to improve the wear resistance and service life of both, and improve the reliability of the switching valve. Attached Figure Description

[0016] Figure 1 External view of the overall structure of a valve core for a new energy vehicle disclosed in this utility model.

[0017] Figure 2 Exploded view of the overall structure of a valve core for new energy vehicles disclosed in this utility model.

[0018] Figure 3 This is a cross-sectional view of the overall structure of a valve core for a new energy vehicle disclosed in this utility model.

[0019] Figure 4 This is an exploded cross-sectional view of the overall structure of a valve core for a new energy vehicle disclosed in this utility model. Detailed Implementation

[0020] The present invention will now be described in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1-4 The figure shows a valve core for a new energy vehicle, comprising a valve housing 10, an outer valve seat 20, a metal valve sleeve 30, an inner valve seat assembly 40, a valve core assembly 50, and a rotor assembly 60.

[0022] The valve body 10 is a cylindrical body that is open at one end and closed at the other end.

[0023] One end of the outer valve seat 20 is inserted and fixed in the opening of the valve housing 10, and the other end protrudes outside the valve housing 10. Its outer end face is provided with a first connecting cavity 20.1, and its inner end face is provided with a first valve cavity 20.2 that is linearly connected to the first connecting cavity 20.1.

[0024] The metal valve sleeve 30 is fixedly installed in the first connecting cavity 20.1, with its inner end protruding into the first valve cavity 20.2 and its outer end protruding from the outer valve seat 20. The inner end face of the metal valve sleeve 30 is provided with the second valve cavity 30.1, the outer end face is provided with the oil supply port 30.2, the exposed side wall is provided with the oil drain port 30.3, and the interior is provided with the control cavity 30.4. The control cavity 30.4 is linearly connected to the second valve cavity 30.1 and the oil supply port 30.2, and L-shaped connected to the oil supply port 30.2 and the oil drain port 30.3.

[0025] The inner valve seat assembly 40 includes a screw sleeve 41 and an electromagnetic coil 42. The screw sleeve 41 is located inside the valve housing 10, with one end inserted and fixed inside the first valve cavity 20.2 and sleeved and fixed to the inner end of the valve sleeve 30. The electromagnetic coil 42 is sleeved around the screw sleeve 41.

[0026] The valve core assembly 50 includes a metal valve core 51 and a screw 52. The metal valve core 51 is movably disposed in the second valve chamber 30.1 and the control chamber 30.4. Its front end is provided with a conical head 51.1 for closing and opening the inner opening of the oil supply port 30.2. The screw 52 is screwed into the screw sleeve 41, and one end of the screw 52 protrudes from the screw sleeve 41 and is connected to the metal valve core 51. The rear end face of the metal valve core 51 is provided with a third connecting chamber 51.2. The third connecting chamber 51.2 is provided with a piston 53 and a buffer spring 54. The buffer spring 54 is located inside the piston 53 and its two ends support the piston 53 and the bottom of the third connecting chamber 51.2, respectively. The opening of the third connecting chamber 51.2 is fixedly provided with a chamber cover 55. The screw 52 passes through the through hole provided on the chamber cover 55 and is axially fixed but radially rotatably connected to the piston 53.

[0027] The rotor assembly 60 includes a sleeve 61, a rod seat 62, and a permanent magnet 63. The sleeve 61 is movably disposed within the pump housing 10 and sleeved onto the screw 52. The rod seat 62 includes an annular body and a cross-shaped part disposed within the annular body. The annular body is embedded and fixed in an annular groove provided on the inner wall of the sleeve 61. The screw 52 is inserted and fixed into a rod hole provided at the center of the cross-shaped part. The permanent magnet 63 is L-shaped, with one bent surface fixed to the rod seat 62 and the other bent surface located around the electromagnetic coil 42, so that it can be driven to rotate by the electromagnetic coil 42, thereby driving the sleeve 61, the rod seat 62, and the screw 52 to rotate together. The electromagnetic coil 42 is provided in two sets, which are used to drive the permanent magnet 63 to rotate in the forward and reverse directions, respectively.

[0028] When supplying oil, a set of electromagnetic coils 42 can be energized to drive the permanent magnet 63 to rotate in the forward direction, causing the sleeve 61, rod seat 62 and screw 52 to rotate together. The screw 52 drives the metal valve core 51 to retract, opening the oil supply port 30.2 to connect the oil supply port 30.2 and the oil drain port 30.3. When cutting off oil supply, another set of electromagnetic coils 42 can be energized to drive the permanent magnet 63 to rotate in the reverse direction, causing the sleeve 61, rod seat 62 and screw 52 to rotate together. The screw 52 drives the metal valve core 51 to move forward, closing the oil supply port 30.2.

Claims

1. A valve core for new energy vehicles, characterized in that... include: Valve housing (10); The valve housing (10) is a cylindrical body with one end open and the other end closed; Outer valve seat (20); one end of the outer valve seat (20) is inserted and fixed in the opening of the valve housing (10), and the other end protrudes outside the valve housing (10). Its outer end face is provided with a first connecting cavity (20.1), and its inner end face is provided with a first valve cavity (20.2) that is linearly connected to the first connecting cavity (20.1). Metal valve sleeve (30); The metal valve sleeve (30) is fixedly installed in the first connecting cavity (20.1) with its inner end protruding into the first valve cavity (20.2) and its outer end protruding from the outer valve seat (20). The inner end face of the metal valve sleeve (30) is provided with a second valve cavity (30.1), the outer end face is provided with an oil supply port (30.2), the exposed side wall is provided with an oil drain port (30.3), and the interior is provided with a control cavity (30.4). The control cavity (30.4) is linearly connected to the second valve cavity (30.1) and the oil supply port (30.2) and L-shaped connected to the oil supply port (30.2) and the oil drain port (30.3). Inner valve seat assembly (40); The inner valve seat assembly (40) includes a screw sleeve (41) and an electromagnetic coil (42). The screw sleeve (41) is located inside the valve housing (10), with one end inserted and fixed inside the first valve cavity (20.2) and sleeved and fixed to the inner end of the valve sleeve (30). The electromagnetic coil (42) is sleeved around the screw sleeve (41). Valve core assembly (50); The valve core assembly (50) includes a metal valve core (51) and a screw (52). The metal valve core (51) is movably disposed in the second valve chamber (30.1) and the control chamber (30.4). Its front end is provided with a conical head (51.1) for closing and opening the inner opening of the oil supply port (30.2). The screw (52) is screwed into the screw sleeve (41) and one end of it protrudes from the screw sleeve (41) and is connected to the metal valve core (51). Rotor assembly (60); The rotor assembly (60) includes a sleeve (61), a rod seat (62) and a permanent magnet (63). The sleeve (61) is movably disposed inside the valve housing (10) and sleeved on the screw (52). The rod seat (62) is fixedly disposed inside the sleeve (61) and fixedly connected to the screw (52). The permanent magnet (63) is L-shaped with one bent surface fixed to the rod seat (62) and the other bent surface located outside the electromagnetic coil (42) so that it can be driven to rotate by the electromagnetic coil (42), thereby driving the sleeve (61), the rod seat (62) and the screw (52) to rotate together.

2. The valve core for new energy vehicles according to claim 1, characterized in that: The rear end face of the metal valve core (51) is provided with a third connecting cavity (51.2). Inside the third connecting cavity (51.2) are a piston (53) and a buffer spring (54). The buffer spring (54) is located inside the piston (53) and supports the piston (53) and the bottom of the third connecting cavity (51.2) at both ends respectively. The cavity opening of the third connecting cavity (51.2) is fixedly provided with a cavity cover (55). The screw (52) passes through the through hole provided on the cavity cover (55) and is connected to the piston (53).

3. A valve core for new energy vehicles according to claim 1, characterized in that: The electromagnetic coil (42) is provided in two sets, which are used to drive the permanent magnet (63) to rotate in the forward and reverse directions respectively.

4. A valve core for new energy vehicles according to claim 1, characterized in that: The rod holder (62) includes a ring body and a cross inside the ring body. The ring body is embedded and fixed in the annular groove provided on the inner wall of the sleeve (61), and the screw (52) is inserted and fixed in the rod hole provided in the center of the cross.

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