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CN-224214768-U - Check valve and two-way stop valve of automobile thermal management system

CN224214768UCN 224214768 UCN224214768 UCN 224214768UCN-224214768-U

Abstract

The utility model relates to the technical field of automobile valve manufacturing, in particular to a one-way valve and a two-way stop valve of an automobile thermal management system, which comprise a valve shell, wherein a valve cavity is arranged in the valve shell, a first annular limiting stop edge is arranged in the valve cavity, one end of the valve cavity is provided with a runner outlet, and the other end of the valve cavity is provided with a runner inlet; the valve plug is movably arranged in the valve cavity and limited between the first annular limiting blocking edge and the limiting cover, the second annular limiting blocking edge is limited by the first annular limiting blocking edge in the process that the valve plug moves towards the inlet direction of the flow channel, a sealing ring is arranged on the valve plug in a hooping mode, the sealing ring is abutted to one side, close to the first annular limiting blocking edge, of the second annular limiting blocking edge, and the spring abuts against the valve plug and exerts elastic force towards the inlet direction of the flow channel. The abnormal sound and damage caused by the impact between the valve core and the valve body in the using process can be reduced.

Inventors

  • ZHAO WENBO
  • HU LEI
  • LI CHUN

Assignees

  • 斯丹德汽车系统（苏州）有限公司

Dates

Publication Date
20260508
Application Date
20250520

Claims (10)

  1. 1. A check valve for an automotive thermal management system, comprising: The valve comprises a valve housing (1), wherein a valve cavity (10) is arranged in the valve housing (1), a first annular limiting stop edge (101) is arranged in the valve cavity (10), a runner outlet (102) is formed in one end of the valve cavity (10), and a runner inlet (103) is formed in the other end of the valve cavity (10); The limiting cover (3) is arranged at one end of the valve cavity (10) corresponding to the flow passage outlet (102); The valve plug (2) is provided with a second annular limiting stop edge (24) at the periphery, the valve plug (2) is movably arranged in the valve cavity (10) and limited between the first annular limiting stop edge (101) and the limiting cover (3), the second annular limiting stop edge (24) is limited by the first annular limiting stop edge (101) in the process that the valve plug (2) moves towards the direction of the flow channel inlet (103), a sealing ring (23) is arranged on the valve plug (2) in a hooping mode, and the sealing ring (23) is abutted to one side, close to the first annular limiting stop edge (101), of the second annular limiting stop edge (24); The spring (4), spring (4) contradicts with valve plug (2) and exerts towards runner entry (103) direction elasticity to valve plug (2) to under the natural state, sealing washer (23) axial up and first annular spacing fender edge (101) and second annular spacing fender edge (24) in close contact with, the runner in valve pocket (10) is closed.
  2. 2. A one-way valve for an automotive thermal management system as set forth in claim 1, wherein said valve cavity (10) is axially extending, and wherein said valve cavity (10) is circular in cross-section concentric with said first annular stop edge (101).
  3. 3. The check valve of the automobile thermal management system according to claim 1, wherein the valve plug (2) and the second annular limiting stop edge (24) are integrally arranged, the valve plug (2) protrudes out of the second annular limiting stop edge (24) towards the direction of the flow passage inlet (103), the valve plug (2) comprises a diversion section (21) and a mounting section (22) which are integrally arranged, the diversion section (21) is arranged at one end of the mounting section (22) close to the flow passage inlet (103), one end of the diversion section (21) close to the flow passage inlet (103) is conical, the sealing ring (23) is hooped on the mounting section (22), and in a natural state, the second annular limiting stop edge (24) extends out of an annular cavity of the first annular limiting stop edge (101) after being limited by the first annular limiting stop edge (101).
  4. 4. The one-way valve of the automobile thermal management system according to claim 3, wherein the side surface of the diversion section (21) is provided with diversion trenches (210), the diversion trenches (210) axially penetrate through two ends of the diversion section (21), and the diversion trenches (210) are arranged in an array manner in the circumferential direction of the corresponding valve cavity (10); The diversion trench (210) extends axially, the diversion section (21) comprises a group of rib plates (211) which are arrayed circumferentially, and the trench cavity of the diversion trench (210) is limited between a pair of circumferentially adjacent rib plates (211).
  5. 5. The one-way valve of the automobile thermal management system according to claim 1, wherein the limiting cover (3) is connected to the inner side of the valve cavity (10) through a buckle, the runner outlet (102) is formed in the limiting cover (3), the clamping protrusion (32) is arranged on the outer side wall of the limiting cover (3), the clamping groove (12) which is matched with the clamping protrusion (32) is formed in the valve housing (1), and penetrating grooves (13) penetrating one end of the valve housing (1) corresponding to the runner outlet (102) are formed in two sides of the clamping groove (12).
  6. 6. A one-way valve of an automobile thermal management system according to claim 1, wherein the limit cover (3) is integrally provided with a guide post (31) extending towards one side of the runner inlet (103), the guide post (31) is concentric with the valve cavity (10), and the valve plug (2) is provided with a guide groove (20) in sliding fit with the guide post (31).
  7. 7. The one-way valve of the automobile thermal management system according to claim 1, wherein the valve plug (2) extends towards one side of the runner outlet (102) to form an annular wall (25), the inner wall of the annular wall (25) defines the guide groove (20), the spring (4) is sleeved outside the annular wall (25), two ends of the spring (4) are respectively abutted to the valve plug (2) and the limiting cover (3), and annular grooves for accommodating the ends of the spring (4) are formed in the valve plug (2) and the limiting cover (3).
  8. 8. The check valve of the automobile thermal management system according to claim 1, wherein one end of the valve housing (1) close to the runner inlet (103) is provided with a radially protruding limiting part (11), the limiting part (11) is annular, and the radial dimension of the side surface of the limiting part (11) is enlarged along the direction from the runner inlet (103) to the runner outlet (102) to form a conical surface.
  9. 9. A one-way valve for an automotive thermal management system as set forth in claim 1 wherein the outer wall of the valve housing is cylindrical.
  10. 10. A two-way shut-off valve comprising a pair of thermal management system check valves as defined in claim 1, wherein the pair of thermal management system check valves are axially detachably connected, wherein the flow channel outlet (102) of one thermal management system check valve is in butt joint with the flow channel inlet (103) of the other thermal management system check valve.

Description

Check valve and two-way stop valve of automobile thermal management system Technical Field The utility model relates to the technical field of automobile valve manufacturing, in particular to a one-way valve and a two-way stop valve of an automobile thermal management system. Background With the rapid development of the fields of new energy automobiles, energy storage systems and the like, the efficient operation of a thermal management system puts higher demands on fluid control. The unidirectional water valve is used as a key component in the heat management system, and has the function of ensuring unidirectional flow of cooling liquid or heating medium and preventing backflow, thereby improving the stability and efficiency of the system. The traditional one-way valve has some problems in practical application, the insufficient strength of the diaphragm type valve core can cause reverse deformation, leakage and the like, and the impact between the valve core and the valve body of the valve core type one-way valve can cause abnormal sound and damage. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides the one-way valve of the automobile thermal management system, which can reduce abnormal sound and damage caused by collision between the valve core and the valve body in the use process while ensuring the sealing effect. In order to achieve the above object, the present utility model is realized by the following technical scheme: A one-way valve for an automotive thermal management system, comprising: the valve comprises a valve housing, wherein a valve cavity is arranged in the valve housing, a first annular limiting stop edge is arranged in the valve cavity, a runner outlet is formed in one end of the valve cavity, and a runner inlet is formed in the other end of the valve cavity; the limiting cover is arranged at one end of the valve cavity corresponding to the outlet of the flow passage; The periphery of the valve plug is provided with a second annular limiting stop edge, the valve plug is movably arranged in the valve cavity and is limited between the first annular limiting stop edge and the limiting cover, the second annular limiting stop edge is limited by the first annular limiting stop edge in the process that the valve plug moves towards the inlet direction of the flow channel, the valve plug is provided with a sealing ring in an upper hoop, and the sealing ring is abutted against one side of the second annular limiting stop edge close to the first annular limiting stop edge; And the spring is abutted against the valve plug and applies elastic force towards the inlet direction of the flow passage to the valve plug, so that the sealing ring is in axial close contact with the first annular limiting blocking edge and the second annular limiting blocking edge in a natural state, and the flow passage in the valve cavity is closed. Furthermore, the one-way valve of the automobile thermal management system is characterized in that the valve cavity is axially extended and is circular and concentric with the first annular limiting stop edge. Furthermore, according to the one-way valve of the automobile thermal management system, the valve plug and the second annular limiting stop edge are integrally arranged, the valve plug protrudes out of the second annular limiting stop edge towards the direction of the inlet of the flow channel, the valve plug comprises the integrally arranged flow guiding section and the mounting section, the flow guiding section is arranged at one end of the mounting section close to the inlet of the flow channel, one end of the flow guiding section close to the inlet of the flow channel is conical, the sealing ring is hooped on the mounting section, and in a natural state, after the second annular limiting stop edge is limited by the first annular limiting stop edge, the flow guiding section extends out of the annular cavity of the first annular limiting stop edge. As a preferable mode of the present application, the flow resistance when the check valve is in the on state can be reduced. Furthermore, according to the one-way valve of the automobile thermal management system, the side face of the diversion section is provided with the diversion grooves, the diversion grooves axially penetrate through two ends of the diversion section, and the diversion grooves are arranged in an array mode in the circumferential direction of the corresponding valve cavity. Furthermore, the one-way valve of the automobile thermal management system comprises a diversion trench extending in the axial direction, wherein the diversion section comprises a group of rib plates in circumferential array, and the trench cavity of the diversion trench is limited between a pair of circumferentially adjacent rib plates. As a preferred embodiment of the present application, to further reduce the flow resistance. Furthermore, according to the one-way valve of the