CN118242459B - Integrated one-way valve for thermal management refrigerant system - Google Patents
Integrated one-way valve for thermal management refrigerant system Download PDFInfo
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- CN118242459B CN118242459B CN202410666184.9A CN202410666184A CN118242459B CN 118242459 B CN118242459 B CN 118242459B CN 202410666184 A CN202410666184 A CN 202410666184A CN 118242459 B CN118242459 B CN 118242459B
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 188
- 238000007789 sealing Methods 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002512 anti-withdrawal effect Effects 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910000755 6061-T6 aluminium alloy Inorganic materials 0.000 description 2
- 102220481647 Methylmalonyl-CoA epimerase, mitochondrial_K70T_mutation Human genes 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 229920006168 hydrated nitrile rubber Polymers 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses an integrated check valve for a heat management refrigerant system, which relates to the technical field of heat management of new energy automobiles and energy storage systems, and comprises the following components: the refrigerant flow passage plate is internally provided with a valve core passage, a high-pressure refrigerant passage communicated with the side wall of the valve core passage, a low-pressure refrigerant passage communicated with the lower end of the valve core passage and a refrigerant outlet communicated with the side wall of the valve core passage; the one-way valve core is positioned in the valve core channel and is matched with the inner diameter size of the valve core channel; the one-way valve core can axially displace along the valve core channel; the lower end of the one-way valve core is provided with a tip for guiding and closing the port. By adopting the scheme, only through the movable one-way valve core and the end head for sealing, special valve casings, sealing blanking covers, anti-withdrawal snap springs and other parts are not required to be arranged, so that the use of materials is reduced, and the risk of increasing external leakage is completely avoided.
Description
Technical Field
The invention relates to the technical field of heat management of new energy automobiles and energy storage systems, in particular to an integrated check valve for a heat management refrigerant system.
Background
In the prior known refrigerant system, the check valve has two general structural principles, one is that the check valve core is provided with a spring rebound structure so that the back side flow channel of the valve core can automatically return under the condition of no pressure, the purpose of forward circulation can be achieved, and the valve core moves in the opposite direction and is pushed by the self pressure corresponding to the back flow channel, so that the reverse circulation is blocked. The second is that the valve core does not have a spring structure, the valve core can be automatically opened and closed by utilizing different pressure differences of the flow channels at two sides, the pressure at the high pressure side pushes the valve core to move to close the circulation at the low pressure side (in the reverse cut-off state at the moment), the high pressure side channel is required to be opened at the low pressure side to be provided with other types of valves with cut-off functions (according to functions required by the system), the high pressure side is not pressurized after cut-off, the pressure at the low pressure side is higher than that at the high pressure side at the moment, and the valve core can be opened by moving reversely to achieve the purpose of forward circulation.
Whatever the type of structure used, it has in common: 1. compared with a refrigerant system, the structure of the valve occupies a relatively large space, and influences the arrangement of the system; 2. the valve has more sealing ring consumption, and the part responsible for refrigerant leakage adopts a sealing ring structure, so that the requirement of new energy on annual leakage can be seriously influenced; 3. the valve is generally composed of an inner sealing ring, two outer sealing rings, a valve core, a valve shell and an anti-withdrawal clamp spring, and has a complex structure and increased cost.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides an integrated one-way valve for a heat management refrigerant system.
The invention is realized by the following technical scheme:
An integrated check valve for a thermal management refrigerant system, comprising:
The refrigerant flow passage plate is internally provided with a valve core passage, a high-pressure refrigerant passage communicated with the side wall of the valve core passage, a low-pressure refrigerant passage communicated with the lower end of the valve core passage and a refrigerant outlet communicated with the side wall of the valve core passage, and the end part of the low-pressure refrigerant passage communicated with the valve core passage is provided with a port with the diameter smaller than that of the valve core passage;
The one-way valve core is positioned in the valve core channel and is matched with the inner diameter size of the valve core channel; the one-way valve core can axially displace along the valve core channel;
The side wall of the one-way valve core is communicated with a flow passage which is respectively communicated with the high-pressure refrigerant passage and the refrigerant outlet, and a circumferential gap is reserved between the one-way valve core and the valve core passage;
the lower end of the one-way valve core is provided with a tip for guiding and closing the port.
Compared with the prior art, the check valve has the following defects: 1. compared with a refrigerant system, the structure of the valve occupies a relatively large space, and influences the arrangement of the system; 2. the valve has more sealing ring consumption, and the part responsible for refrigerant leakage adopts a sealing ring structure, so that the requirement of new energy on annual leakage can be seriously influenced; 3. the invention provides an integrated one-way valve for a heat management refrigerant system, which is characterized in that the valve is generally composed of an inner sealing ring, two outer sealing rings, a valve core, a valve shell and an anti-withdrawal clamp spring.
The invention is mainly applied to a refrigerant flow channel plate and a unidirectional valve core in the refrigerant flow channel plate, so the refrigerant flow channel plate is directly adopted without a valve shell, a valve core channel, a high-pressure refrigerant channel, a low-pressure refrigerant channel and a refrigerant outlet are respectively arranged in the refrigerant flow channel plate, the side walls of the high-pressure refrigerant channel and the valve core channel are communicated and are used for introducing high-pressure refrigerant, the bottoms of the low-pressure refrigerant channel and the valve core channel are the same and are used for introducing low-pressure refrigerant, the refrigerant outlet and the other side wall of the valve core channel are the same and are used for discharging refrigerant, the unidirectional valve core is positioned in the valve core channel, and the unidirectional valve core is preferably cylindrical, so that the possible overturn failure generated when the valve core moves is effectively avoided, and the guiding performance is improved; when the high-pressure refrigerant passes through the flow channel, the high-pressure refrigerant can be discharged through the refrigerant outlet, and the pressure of the high-pressure refrigerant channel is higher than the pressure of the low-pressure refrigerant channel, so that the unidirectional valve core can be driven to move downwards, namely to the low-pressure refrigerant channel until the end head completely seals the port, thereby generating a flow channel blocking effect, and the refrigerant at the low-pressure side of the low-pressure refrigerant channel cannot flow through the refrigerant outlet to achieve the purpose of unidirectional blocking. When the refrigerant at the high pressure side of the high pressure refrigerant channel is blocked by other mechanisms in front of the channel (according to the requirement of the function of a refrigerant system), the pressure at the low pressure side of the low pressure refrigerant channel can be at the high pressure side of the high pressure refrigerant channel, the unidirectional valve core can be pushed to automatically move upwards, and the refrigerant at the low pressure side of the low pressure refrigerant channel can flow to the refrigerant outlet through a gap between the unidirectional valve core and the valve core channel.
As a specific implementation mode of sealing between the end head and the port, the end head can extend into the port, the outer diameter of the end head is matched with the inner diameter of the port in size, a second annular groove is formed in the side wall of the end head in an annular mode, a second sealing ring is sleeved in the second annular groove, and the second sealing ring is used for sealing a gap between the end head and the port. In this scheme, low pressure refrigerant passageway preference and the coaxial setting of case passageway, at unidirectional valve core downstream in-process, the end can enter into the port inside gradually, enters into in the low pressure refrigerant passageway promptly to can realize the seal to low pressure refrigerant passageway through the second sealing washer, reach blocking effect.
Because the clearance is provided between the unidirectional valve core and the valve core channel, the unidirectional valve core is convenient to move and guide, so that the end head smoothly enters the port, and an adaptive chamfer is arranged between the end head and the port in a circumferential direction. The chamfer angle is preferably 1 x 20 degrees chamfer angle structure, and when the valve is specifically sealed, the second sealing ring can be contacted with the chamfer angle part at the port of the low-pressure refrigerant channel to generate tightness, and when the sealing is realized, the valve core can be convenient for the low-pressure refrigerant to push out of the one-way valve core upwards when the high-pressure refrigerant channel and the low-pressure refrigerant channel are cut off.
As a concrete structure of one-way valve core, the one-way valve core includes the intermediate plate, the end is located the intermediate plate lower terminal surface, the intermediate plate ring is to the tip equipartition have a plurality of evaginations's installation region, every install the extension board on the installation region, the extension board is towards keeping away from the direction of intermediate plate extends, and a plurality of the external diameter size that the extension board encircled with case passageway internal diameter looks adaptation. In the scheme, the unidirectional valve core sequentially comprises an end, a middle plate and an extension plate from bottom to top, wherein the middle plate is used as a bearing part, and the diameter of the middle plate is larger than that of the lower end, so that when the unidirectional valve core moves downwards, the middle plate can be conveniently seated on a port of a low-pressure refrigerant channel, and the limit of the downward displacement of the unidirectional valve core is realized; a plurality of convex mounting areas are uniformly distributed at the circumferential end part of the middle plate, so that a gap is reserved between two adjacent mounting areas, low-pressure refrigerant can pass through conveniently, and mounting positions can be provided for the extension plate; the plurality of extension plates extend towards the direction far away from the middle plate, and at the moment, gaps between two adjacent extension plates can facilitate the passage of a large amount of high-pressure refrigerants, so that the whole flow capacity and flow rate are improved; in addition, the unidirectional valve core is wholly heavy downwards and light upwards, and the gravity center of the unidirectional valve core is positioned at the lower position, so that the unidirectional valve core can be extruded downwards more easily by a high-pressure refrigerant, and the unidirectional valve core can be conveniently and rapidly guided to move vertically under the action of self gravity.
In order to improve the connection strength of the extension plates and avoid fracture under the action of high pressure, each extension plate is provided with a rib plate on the inner side surface, and the rib plates are respectively supported on the upper end surface of the middle plate and the inner side surface of the extension plate.
In the processing process of the refrigerant flow channel plate, in order to facilitate processing of a vertical low-pressure refrigerant channel and a valve core channel, the upper end of the valve core channel is drilled through, so that a processing channel is formed, in order to avoid refrigerant leakage and realize the limit of the upward displacement of the unidirectional valve core, the upper end of the valve core channel is provided with a processing channel penetrating through the outer part of the refrigerant flow channel plate, and the processing channel is provided with a blocking cover for sealing; the outer diameter of the blanking cover is matched with the inner diameter of the processing channel, and one end of the outer part of the processing channel is provided with a counter bore matched with the blanking cap at the upper end of the blanking cover. In the scheme, the upper end of the processing channel is provided with the plugging cover, and the upper end of the plugging cover is provided with the plugging cap, so that the plugging cover can be plugged into the processing channel to realize sealing, and the plugging cap can be propped against the counter bore to be convenient to install and detach; as set up above, this blanking cover still has considered the upper limit that can restrict the case removal in structural design, and the case removes and then does not need to use jump ring etc. or similar special part to restrict.
As a specific implementation mode of the plugging cover sealing, a first annular groove is formed in the circumferential direction of the side wall of the plugging cover, a first sealing ring is sleeved in the first annular groove, and the first sealing ring is used for sealing a gap between the plugging cover and the processing channel.
For realizing blanking cover and quick assembly disassembly, blanking cover upper end tip has the extension piece, have the screw thread via hole on the extension piece, the extension piece pass through the bolt with refrigerant runner board is connected.
As a redundancy scheme, the refrigerant flow channel plate is made of aluminum; preferably, the alloy is made of 6061-T6 aluminum material and the like through forging or vacuum die casting.
As a redundancy solution, the one-way valve element is made of a cold-resistant medium material; preferably, PA66 and other materials are adopted, and the first sealing ring and the second sealing ring are made of HNBR materials; the blanking cover is made of K70A and other materials.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the integrated one-way valve for the heat management refrigerant system provided by the invention has no special valve shell structure, so that the structure has no outer sealing ring structure, the risk of the one-way valve leakage can be solved, and the annual refrigerant leakage amount is 0 as the one-way valve body.
2. The integrated one-way valve for the heat management refrigerant system provided by the invention has the advantages that the structure is extremely simple for the one-way valve body, a special valve shell and a sealing ring structure for external sealing are not needed, the valve core displacement clamp spring structure is not needed, the external sealing effect is improved, and the material consumption is reduced; and the assembly mode is extremely simple, and the assembly line is combined with the refrigerant system assembly, so that the special production process of the check valve is hardly occupied.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic diagram of a check valve according to an embodiment of the present invention;
FIG. 2 is a front view of a one-way valve cartridge according to one embodiment of the present invention;
FIG. 3 is a top view of a one-way valve cartridge according to one embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3 provided by the present invention;
FIG. 5 is a top view of a closure according to one embodiment of the present invention;
fig. 6 is a cross-sectional view of B-B in fig. 5 provided by the present invention.
In the drawings, the reference numerals and corresponding part names:
The device comprises a 1-blanking cover, a 2-first sealing ring, a 3-refrigerant flow channel plate, a 4-second sealing ring, a 5-one-way valve core, a 501-end, a 502-middle plate, a 503-extension plate, a 504-rib plate, a 6-high pressure refrigerant channel, a 7-low pressure refrigerant channel and an 8-refrigerant outlet.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1: embodiment 1 provides an integrated check valve for a thermal management refrigerant system, as shown in fig. 1, comprising:
The refrigerant flow channel plate 3 is internally provided with a valve core channel, a high-pressure refrigerant channel 6 communicated with the side wall of the valve core channel, a low-pressure refrigerant channel 7 communicated with the lower end of the valve core channel and a refrigerant outlet 8 communicated with the side wall of the valve core channel, and the end part of the low-pressure refrigerant channel 7 communicated with the valve core channel is provided with a port with the diameter smaller than that of the valve core channel;
The one-way valve core 5 is positioned in the valve core channel and is matched with the inner diameter of the valve core channel in size; the one-way valve core 5 can axially displace along the valve core channel;
The side wall of the one-way valve core 5 is communicated with a flow passage which is respectively communicated with the high-pressure refrigerant passage 6 and the refrigerant outlet 8, and a circumferential gap is reserved between the one-way valve core 5 and the valve core passage;
the lower end of the one-way valve cartridge 5 is provided with a tip 501 for guiding and closing the port.
Compared with the prior art, the check valve has the following defects: 1. compared with a refrigerant system, the structure of the valve occupies a relatively large space, and influences the arrangement of the system; 2. the valve has more sealing ring consumption, and the part responsible for refrigerant leakage adopts a sealing ring structure, so that the requirement of new energy on annual leakage can be seriously influenced; 3. the integrated check valve for the thermal management refrigerant system is provided by the scheme, and only the movable check valve core 5 and the end 501 for sealing are adopted, so that special parts such as the valve housing, the sealing plug cover 1 and the anti-withdrawal clamp spring are not required to be arranged, and the risk of increasing external leakage is completely avoided due to material use.
In the concrete scheme, the invention comprises a refrigerant flow channel plate 3 and a unidirectional valve core 5 inside the refrigerant flow channel plate, and is mainly applied to a refrigerant system in the field of thermal management (new energy automobile and energy storage), so the refrigerant flow channel plate 3 is directly adopted without separately arranging a valve shell, a valve core channel, a high-pressure refrigerant channel 6, a low-pressure refrigerant channel 7 and a refrigerant outlet 8 are respectively arranged inside the refrigerant flow channel plate 3, the high-pressure refrigerant channel 6 is communicated with the side wall of the valve core channel and is used for introducing high-pressure refrigerant, the bottom of the low-pressure refrigerant channel 7 is the same as the bottom of the valve core channel and is used for introducing low-pressure refrigerant, the refrigerant outlet 8 is the same as the other side wall of the valve core channel and is used for discharging refrigerant, the unidirectional valve core 5 is positioned in the valve core channel, and the unidirectional valve core 5 is preferably cylindrical, so that the overturn failure possibly generated when the valve core moves is effectively avoided, and the guiding performance is improved; when the high-pressure refrigerant is introduced into the high-pressure refrigerant channel 6 and flows through the unidirectional valve core 5, the high-pressure refrigerant is discharged through the refrigerant outlet 8 by respectively communicating the high-pressure refrigerant channel 6 and the flow channel of the refrigerant outlet 8, and the pressure of the high-pressure refrigerant channel 6 is higher than the pressure of the low-pressure refrigerant channel 7 when the high-pressure refrigerant channel passes through the flow channel, the unidirectional valve core 5 is driven to move downwards, namely to move towards the low-pressure refrigerant channel 7 until the end 501 completely closes the port, so that a flow channel blocking effect is generated, and the refrigerant at the low-pressure side of the low-pressure refrigerant channel 7 cannot flow through the refrigerant outlet 8 to achieve the purpose of unidirectional blocking. When the refrigerant at the high pressure side of the high pressure refrigerant channel 6 is blocked by other mechanisms in front of the channel (according to the requirement of the refrigerant system), the pressure at the low pressure side of the low pressure refrigerant channel 7 can be at the high pressure side of the high pressure refrigerant channel 6, the unidirectional valve core 5 can be pushed to automatically move upwards, and at the moment, the refrigerant at the low pressure side of the low pressure refrigerant channel 7 can flow to the refrigerant outlet 8 through the gap between the unidirectional valve core 5 and the valve core channel.
As a specific implementation manner of sealing between the end 501 and the port, the end 501 can extend into the port, the outer diameter of the end 501 is matched with the inner diameter of the port in size, a second circumferential groove is formed in the side wall of the end 501 in a circumferential direction, a second sealing ring 4 is sleeved in the second circumferential groove, and the second sealing ring 4 is used for sealing a gap between the end 501 and the port. In this scheme, low pressure refrigerant passageway 7 is preferential to set up with the case passageway is coaxial, and at unidirectional valve core 5 downwardly moving in-process, end 501 can enter into the port inside gradually, enters into in the low pressure refrigerant passageway 7 promptly to can realize the seal to low pressure refrigerant passageway 7 through second sealing washer 4, reach the blocking effect.
Because the clearance is arranged between the unidirectional valve core 5 and the valve core channel, in order to facilitate the movement and the guiding of the unidirectional valve core 5, the end head 501 smoothly enters the inside of the port, and an adaptive chamfer is arranged between the end head 501 and the port in a circumferential direction. The chamfer angle is preferably 1 x 20 degrees chamfer angle structure, and in specific sealing, the second sealing ring 4 can be contacted with the chamfer angle part at the port of the low-pressure refrigerant channel 7 to generate tightness, and the unidirectional valve core 5 can be conveniently pushed out upwards by the low-pressure refrigerant when the high-pressure refrigerant channel and the low-pressure refrigerant channel are cut off while sealing is realized.
Example 2: this embodiment 2 is further defined on the basis of embodiment 1, and as shown in fig. 2 to 4, a specific structure of the one-way valve element 5 is provided.
Referring to fig. 2-4, the unidirectional valve core 5 includes a middle plate 502, the end 501 is located on a lower end surface of the middle plate 502, a plurality of protruding mounting areas are uniformly distributed on a circumferential end portion of the middle plate 502, an extension plate 503 is mounted on each mounting area, the extension plate 503 extends in a direction away from the middle plate 502, and an outer diameter size surrounded by the extension plates 503 is adapted to an inner diameter of a valve core channel. In the scheme, the unidirectional valve core 5 sequentially comprises a head 501, a middle plate 502 and an extension plate 503 from bottom to top, wherein the middle plate 502 is used as a bearing part, the diameter of the bearing part is larger than that of the lower Fang Duantou, so that when the unidirectional valve core 5 moves downwards, the middle plate 502 can be positioned on a port of the low-pressure refrigerant channel 7, and the limit of the downward displacement of the unidirectional valve core 5 is realized; a plurality of convex mounting areas are uniformly distributed at the circumferential end part of the middle plate 502, so that a gap is reserved between two adjacent mounting areas, low-pressure refrigerant can pass through conveniently, and mounting positions can be provided for the extension plate 503; the plurality of extension plates 503 extend towards the direction far away from the middle plate 502, and at this time, gaps between two adjacent extension plates 503 can facilitate a large amount of high-pressure refrigerant to pass through, so that the whole flow capacity and flow rate are improved; in addition, the unidirectional valve core 5 is wholly heavy downwards and light upwards, and the gravity center of the unidirectional valve core 5 is positioned at the lower position, so that the unidirectional valve core 5 can be extruded downwards more easily by a high-pressure refrigerant, and the unidirectional valve core 5 can conveniently and rapidly guide in a vertical motion under the action of self gravity.
Referring to fig. 2-4, in order to improve the connection strength of the extension boards 503 and avoid breakage under high pressure, each of the extension boards 503 has a rib 504 on an inner side surface thereof, and the rib 504 is respectively supported on an upper end surface of the middle board 502 and the inner side surface of the extension board 503.
Example 3: embodiment 3 is further defined on the basis of embodiment 2, and as shown in fig. 5-6, a specific structural form of the blanking cover 1 is provided.
Referring to fig. 5-6, in order to facilitate the processing of the vertical low-pressure refrigerant channel 7 and the valve core channel in the processing of the refrigerant flow channel plate 3, the upper end of the valve core channel is provided with a processing channel penetrating through the exterior of the refrigerant flow channel plate 3, and the processing channel is provided with a sealing cover 1 for sealing in order to avoid the leakage of the refrigerant and realize the limit of the upward displacement of the unidirectional valve core 5; the outer diameter of the blanking cover 1 is matched with the inner diameter of the processing channel, and one end of the outer part of the processing channel is provided with a counter bore matched with the blanking cap at the upper end of the blanking cover 1. In the scheme, the upper end of the processing channel is provided with the blanking cover 1, and the upper end of the blanking cover 1 is provided with the blanking cap, so that the blanking cover 1 can be plugged into the processing channel to realize sealing, and the blanking cap can be propped against the counter bore, thereby being convenient to install and detach; as set up above, this blanking cover 1 still has considered in structural design and can restrict the upper limit that the case removed, and the case removes and then does not need to use jump ring etc. or similar special part to restrict.
Referring to fig. 6, as a specific implementation manner of sealing the plugging cover 1, a first circumferential groove is circumferentially formed in a side wall of the plugging cover 1, a first sealing ring 2 is sleeved in the first circumferential groove, and the first sealing ring 2 is used for sealing a gap between the plugging cover 1 and the processing channel.
Referring to fig. 5, in order to realize quick assembly disassembly and assembly of the cover 1, an extension block is provided at the upper end of the cover 1, a threaded via hole is provided on the extension block, and the extension block is connected with the refrigerant flow channel plate 3 by a bolt.
As a redundancy scheme, the refrigerant flow channel plate 3 is made of aluminum; preferably, the alloy is made of 6061-T6 aluminum material and the like through forging or vacuum die casting.
As a redundancy solution, the unidirectional valve cartridge 5 is made of a cold-resistant medium material; preferably, PA66 and other materials are adopted, and the first sealing ring 2 and the second sealing ring 4 are made of HNBR materials; the blanking cover 1 is made of K70A and other materials.
The specific working principle is as follows:
When the scheme specifically operates, in the process of introducing high-pressure refrigerant into the high-pressure refrigerant channel 6 and flowing through the unidirectional valve core 5, the high-pressure refrigerant can enter the refrigerant outlet 8 through the gap between the two adjacent extension plates 503 so as to be discharged by the refrigerant outlet 8, and because the high-pressure side pressure of the high-pressure refrigerant channel 6 is higher than the low-pressure side pressure of the low-pressure refrigerant channel 7, when the high-pressure refrigerant channel passes through the gap at the upper end of the unidirectional valve core 5, the pressure of the high-pressure refrigerant channel can drive the unidirectional valve core 5 to move downwards, the unidirectional valve core 5 is heavy downwards and light upwards, the gravity center of the unidirectional valve core 5 is positioned at the lower position, and can also perform vertical movement under the action of self gravity to perform rapid guiding, namely move towards the low-pressure refrigerant channel 7 until the end 501 completely seals the port, and at the moment, the second sealing ring 4 contacts the port of the low-pressure refrigerant channel 7 to realize sealing, thereby generating a flow channel blocking effect, so that the refrigerant at the low-pressure side of the low-pressure refrigerant channel 7 cannot flow through the refrigerant outlet 8 to achieve the purpose of unidirectional blocking. When the refrigerant at the high pressure side of the high pressure refrigerant channel 6 is blocked by other mechanisms in front of the channel (according to the requirement of the refrigerant system), the pressure at the low pressure side of the low pressure refrigerant channel 7 can be at the high pressure side of the high pressure refrigerant channel 6, the unidirectional valve core 5 can be pushed to automatically move towards the upper blanking cover 1, the unidirectional valve core 5 is limited upwards through the upper blanking cover 1, and at the moment, the refrigerant at the low pressure side of the low pressure refrigerant channel 7 can flow to the refrigerant outlet 8 through the gap between the adjacent convex mounting areas.
The technical scheme is mainly applied to a refrigerant system in the field of thermal management (new energy automobiles and energy storage), a plurality of channels are directly formed in the refrigerant flow channel plate 3, a guide valve core is arranged, a special valve shell is not needed, and an outer sealing ring structure is not needed structurally, so that the risk of leakage of the check valve can be solved, and the annual leakage of the refrigerant is 0 as the check valve body. The check valve body has extremely simple structure, has no special valve shell and sealing ring structure for external sealing, has no limit valve core displacement clamp spring structure, improves the external sealing effect and reduces the material consumption; and the assembly mode is extremely simple, and the assembly line is combined with the refrigerant system assembly, so that the special production process of the check valve is hardly occupied.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. An integrated check valve for a thermal management refrigerant system, comprising:
The refrigerant flow passage plate (3), a valve core passage, a high-pressure refrigerant passage (6) communicated with the side wall of the valve core passage, a low-pressure refrigerant passage (7) communicated with the lower end of the valve core passage and a refrigerant outlet (8) communicated with the side wall of the valve core passage are arranged in the refrigerant flow passage plate (3), and the end part of the low-pressure refrigerant passage (7) communicated with the valve core passage is provided with a port with the diameter smaller than that of the valve core passage;
The one-way valve core (5) is positioned in the valve core channel and is matched with the inner diameter of the valve core channel in size; the one-way valve core (5) can axially displace along the valve core channel;
The side wall of the one-way valve core (5) is communicated with a flow passage which is respectively communicated with the high-pressure refrigerant passage (6) and the refrigerant outlet (8), and a circumferential gap is reserved between the one-way valve core (5) and the valve core passage;
the lower end of the one-way valve core (5) is provided with a tip (501) for guiding and closing the port.
2. The integrated check valve for a thermal management refrigerant system according to claim 1, wherein the tip is capable of extending into the port, and the tip outer diameter and the port inner diameter are sized to fit, the tip sidewall is circumferentially provided with a second circumferential groove, a second seal ring (4) is sleeved in the second circumferential groove, and the second seal ring (4) is used for sealing a gap between the tip (501) and the port.
3. An integrated check valve for a thermal management refrigerant system according to claim 2, wherein an adapted chamfer is provided circumferentially between the tip (501) and the port.
4. The integrated check valve for a thermal management refrigerant system according to claim 1, wherein the check valve core (5) comprises a middle plate (502), the end head (501) is located on the lower end face of the middle plate (502), a plurality of convex mounting areas are uniformly distributed on the annular end portion of the middle plate (502), an extension plate (503) is mounted on each mounting area, the extension plate (503) extends in a direction away from the middle plate (502), and the outer diameter size enclosed by the extension plates (503) is matched with the inner diameter of the valve core channel.
5. The integrated check valve for a thermal management refrigerant system as set forth in claim 4, wherein each of said extension plates (503) has a rib (504) on an inner side thereof, said rib (504) being supported on an upper end surface of said intermediate plate (502) and an inner side of said extension plate (503), respectively.
6. An integrated check valve for a thermal management refrigerant system according to claim 1, wherein the upper end of the valve core channel is provided with a processing channel penetrating through the outside of the refrigerant flow channel plate (3), and the processing channel is provided with a blocking cover (1) for sealing; the outer diameter of the blanking cover (1) is matched with the inner diameter of the processing channel, and one end of the outer part of the processing channel is provided with a counter bore matched with the blanking cap at the upper end of the blanking cover (1).
7. The integrated check valve for a thermal management refrigerant system according to claim 6, wherein a first circumferential groove is formed in the circumferential direction of the side wall of the plug cover (1), a first sealing ring (2) is sleeved in the first circumferential groove, and the first sealing ring (2) is used for sealing a gap between the plug cover (1) and the processing channel.
8. The integrated check valve for a thermal management refrigerant system according to claim 6, wherein an extension block is provided at an upper end portion of the plug cover (1), a threaded through hole is provided on the extension block, and the extension block is connected with the refrigerant flow channel plate (3) through a bolt.
9. An integrated check valve for a thermal management refrigerant system according to claim 1, wherein the refrigerant flow plate (3) is made of aluminum.
10. An integrated check valve for a thermal management refrigerant system according to claim 1, characterized in that the check valve core (5) is made of a cold-resistant medium material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410666184.9A CN118242459B (en) | 2024-05-28 | 2024-05-28 | Integrated one-way valve for thermal management refrigerant system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410666184.9A CN118242459B (en) | 2024-05-28 | 2024-05-28 | Integrated one-way valve for thermal management refrigerant system |
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| Publication Number | Publication Date |
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| CN118242459A CN118242459A (en) | 2024-06-25 |
| CN118242459B true CN118242459B (en) | 2024-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410666184.9A Active CN118242459B (en) | 2024-05-28 | 2024-05-28 | Integrated one-way valve for thermal management refrigerant system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623422A (en) * | 2020-05-06 | 2021-11-09 | 浙江三花智能控制股份有限公司 | Three-way valve and valve body part thereof |
| CN220541430U (en) * | 2023-08-20 | 2024-02-27 | 新昌县丰亿电器有限公司 | Throttle valve with flow regulating function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166658A (en) * | 2001-11-29 | 2003-06-13 | Power System Kk | Double-check type selector valve |
| CN105987206A (en) * | 2015-01-30 | 2016-10-05 | 浙江三花股份有限公司 | Stop valve |
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- 2024-05-28 CN CN202410666184.9A patent/CN118242459B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623422A (en) * | 2020-05-06 | 2021-11-09 | 浙江三花智能控制股份有限公司 | Three-way valve and valve body part thereof |
| CN220541430U (en) * | 2023-08-20 | 2024-02-27 | 新昌县丰亿电器有限公司 | Throttle valve with flow regulating function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118242459A (en) | 2024-06-25 |
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