CN115654163A - Flow control valve - Google Patents
Flow control valve Download PDFInfo
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- CN115654163A CN115654163A CN202211587337.8A CN202211587337A CN115654163A CN 115654163 A CN115654163 A CN 115654163A CN 202211587337 A CN202211587337 A CN 202211587337A CN 115654163 A CN115654163 A CN 115654163A
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- valve core
- valve
- shaft section
- position sensor
- core shaft
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Abstract
The invention discloses a flow control valve, which comprises: the automatic position monitoring device comprises at least one motor, a transmission module connected with the output of the motor, a first valve core with a first valve core shaft section, a second valve core with a second valve core shaft section, a first position sensor arranged at a first position on the first valve core shaft section, and a second position sensor arranged at a second position on the first valve core shaft section, wherein the second valve core shaft section is sleeved on the first valve core shaft section, and when the motor works, the first position sensor and the second position sensor perform position monitoring on the first valve core and the second valve core in operation. The invention has the advantages that: the invention uses the double-position sensor, can detect the position of the upper and lower valve cores at the same time; the double motors are used, the upper valve element and the lower valve element can be independently driven to rotate in real time, the positions of the upper valve element and the lower valve element can be simultaneously detected by matching with the position sensors, the initial positions of the valve element installation do not need to be considered, the structure is optimized, the installation is convenient, the efficiency is improved, the maintenance is easy, and the utilization rate is improved.
Description
Technical Field
The invention belongs to the technical field of fluid control, and particularly relates to a flow control valve.
Background
The existing flow control valve basically adopts a unit position sensor, the position sensor can only detect the rotation angle and the position of a valve core, cannot detect and confirm the initial position of the lower valve core, and further cannot confirm whether the lower valve core completely coincides with a sealing part during working, so that the problems of leakage of an inner flow channel and an outer flow channel possibly exist.
In addition, the existing flow control valve basically adopts a single motor to control the rotation of the valve core, the motor provides rotation power for the valve core on the control valve, and then the rotation of the lower valve core is driven by a stop, so that the mode conversion of the flow control valve is realized. However, the single-motor flow control valve can only detect the rotation angle and position of the upper valve core, cannot directly detect the rotation angle of the lower valve core, cannot confirm whether the sealing edge of the lower valve core completely coincides with the sealing part during operation, and has a large idle stroke during operation, so that the problem of leakage of the inner and outer side flow channels may exist, and therefore, the flow control valve needs to be provided.
Disclosure of Invention
The invention aims to: the flow control valve can detect the position of the valve core and control the rotation of the valve core, and solves the sealing problem of an inner side flow channel and an outer side flow channel of a product.
The technical scheme of the invention is as follows: a flow control valve, comprising: the motor comprises at least one motor, a transmission module connected with the output of the motor, a first valve core with a first valve core shaft section, a second valve core with a second valve core shaft section, a first position sensor arranged at a first position on the valve core shaft section, and a second position sensor arranged at a second position on the first valve core shaft section, wherein the second valve core shaft section is sleeved on the first valve core shaft section, and when the motor works, the motor is in running fit with the transmission module to drive the second valve core to rotate, and the first position sensor and the second position sensor perform position monitoring on the first valve core and the second valve core in operation.
On the basis of the technical scheme, the method further comprises the following subsidiary technical scheme:
preferably, the number of the motors is one, and the transmission module comprises a second output gear matched with the second valve mandrel section.
Preferably, the top end of the first valve core shaft section is provided with a magnetic block in inductive fit with the first position sensor, and the second output gear is sleeved with a magnetic ring in inductive fit with the second position sensor.
Preferably, the first valve core is provided with a stop groove, and the bottom of the second valve core is provided with a boss which is matched with the stop groove and drives the first valve core to rotate.
Preferably, the number of the motors is at least two, the output of each motor is in transmission fit with the corresponding transmission module, and the transmission module comprises a first transmission module and a second transmission module.
Preferably, the two motors are of the same specification and are arranged longitudinally along the center line of the second valve core.
Preferably, the first transmission module comprises a first output gear matched with the first valve core shaft section, and the second transmission module comprises a second output gear matched with the second valve core shaft section, wherein the center lines of the first valve core shaft section, the second valve core shaft section, the first output gear and the second output gear are all on the same axis.
Preferably, the first output gear and the second output gear are both sleeved with a magnetic ring, and the first position sensor and the second position sensor are located outside the magnetic ring.
Preferably, the first valve core has a drop core cavity for weight reduction; and second valve mandrel section lower extreme is equipped with sealing member installation cavity and bearing installation cavity, and the top is equipped with second valve mandrel section, and sealing member and bearing are installed respectively to sealing member installation cavity and bearing installation cavity.
The invention has the advantages that: the invention uses the double-position sensor, can detect the position of the upper and lower valve cores at the same time; the double motors are used, the upper valve element and the lower valve element can be independently driven to rotate in real time, the positions of the upper valve element and the lower valve element can be simultaneously detected by matching with the position sensors, the initial positions of the valve element installation do not need to be considered, the structure is optimized, the installation is convenient, the efficiency is improved, the maintenance is easy, and the utilization rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an overall sectional view of a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a first valve spool and a second valve spool according to a first embodiment of the present invention;
FIG. 3 is a cross-sectional view of a first valve spool in a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of a second valve spool in the first embodiment of the present invention;
FIG. 5 is a cross-sectional view of a second output gear in the first embodiment of the present invention;
FIG. 6 is an overall cross-sectional view of a second embodiment of the present invention;
FIG. 7 is a cross-sectional view of a first transmission module and a second transmission module according to a second embodiment of the present invention;
FIG. 8 is a cross-sectional view of the first transmission module, the second transmission module and the motor from another perspective according to the second embodiment of the present invention;
FIG. 9 is a cross-sectional view of the first and second valve spools in the second embodiment of the present invention;
FIG. 10 is a cross-sectional view of a first valve spool in a second embodiment of the present invention;
fig. 11 is a sectional view of a second valve spool in the second embodiment of the present invention.
Detailed Description
Example 1: referring to fig. 1-5, a first embodiment of a flow control valve is disclosed, comprising: the valve core assembly comprises at least one motor, a transmission module 200 connected with the output of the motor, a first valve core 300 with a first valve core shaft section 301, a second valve core 400 with a second valve core shaft section 408, the second valve core 400 is in transmission fit with the transmission module 200 and is in fit with the first valve core 300, a first position sensor 304 is arranged at a first position on the first valve core shaft section 301, and a second position sensor 305 is arranged at a second position on the valve core shaft section 301, wherein the second valve core shaft section 408 is sleeved on the first valve core shaft section 301, and when the motor works, the motor is in running fit with the transmission module 200 to drive the second valve core 400 to rotate, and meanwhile, the first position sensor 304 and the second position sensor 305 carry out position monitoring on the first valve core 300 and the second valve core 400 in operation.
The number of the motors is one, and the transmission module 200 includes a second output gear 202 engaged with the second spool 400, wherein the first spool shaft section 301 passes through the second spool shaft section 408, so that the center lines of the second output gear 202, the first spool shaft section 301, and the second spool shaft section 408 are on the same axis.
The top end of the first valve core shaft section 301 is provided with a magnetic block 302 which is in inductive fit with a first position sensor 304, and the second output gear 202 is sleeved with a magnetic ring 303 which is in inductive fit with a second position sensor 305. The first position sensor 304 and the second position sensor 305 are connected to the same circuit board, and the circuit board is located above the first spool shaft section 301. Like a single position sensor, the first position sensor 304 and the second position sensor 305 respectively sense the magnetic field changes of the magnetic ring 303 and the magnetic block 302, so that the position of the valve core is determined, and internal and external leakage is prevented. The first valve core 300 has a stop groove 307, and the bottom of the second valve core 400 has a boss 405 that cooperates with the stop groove 307 and rotates the first valve core 300. Friction between the first valve core 300 and the second valve core 400 is reduced through a bearing, coaxiality is increased, and a boss 405 is arranged between the two valve cores, so that power can be transmitted through a transmission assembly, and the transmission shaft can be connected with only one valve core to drive the two valve cores to rotate.
In fig. 2, the first spool 300 is provided with a drop core cavity 306 for weight reduction, and the spool shaft section 301 passes through the drop core cavity 306. The lower end of the second valve core shaft section 408 is provided with a sealing element installation cavity 402 and a bearing installation cavity 403, the top of the second valve core shaft section is provided with a second connecting spline 404, the sealing element installation cavity 402 and the bearing installation cavity 403 are respectively provided with a sealing element 406 and a bearing 407, and flow channels for communicating at least two flow channel openings are arranged in the first valve core 300 and the second valve core 400. And the sealing member 406 is used for sealing the contact surface of the valve core shaft section 301 and the second valve core 400, so that the sealing performance of the valve body is improved.
When the motor works, the motor is matched with the transmission module 200 to rotate, the transmission module 200 is meshed with the second connecting spline 404 to drive the second valve core 400 to rotate, and the first valve core 300 is driven to rotate through the second valve core 400 to complete the switching of the flow channels and the flow proportion adjustment. And the first position sensor 304 and the second position sensor 305 monitor the first spool 300 and the second spool 400 in operation in real time to determine the angular position of the two spools.
In addition, when the double-valve-core integrated port valve works, at least two external flow channel ports are externally connected with a fluid system, other flow channel ports are sealed, fluid enters an external flow channel in the first valve core 300 from one external flow channel port, enters the second valve core 400 through the communication hole, then flows out of the valve core from another connecting hole through a valve core flow channel in the second valve core 400, and finally flows out of the other external flow channel port through the external flow channel corresponding to the communication hole.
The first valve core 300 and the second valve core 400 are symmetrically arranged valve cores, when the valve is used, flow passages in the two valve cores are all subjected to fluid pressure, and the pressures applied to the two valve cores face opposite directions, so that the overall stress of the valve cores is reduced, and the problem of one-side compression of a disc valve is solved. Because the first valve core 300 and the second valve core 400 are symmetrically arranged along a plane perpendicular to the axial line of the valve body, when a certain flow passage of the first valve core 300 is communicated, the flow passage at the opposite supporting position in the second valve core 400 is also communicated, so that the hydraulic pressure on the upper part and the lower part of the whole valve body is the same, and the whole stress of the valve body is kept balanced.
Because the valve core is composed of two parts of a first valve core 300 and a second valve core 400, each valve core is preset with a plurality of flow channels, a plurality of flow channel ports are preset in the valve body, the number of the flow channel ports communicated with external pipelines can be selected according to actual conditions, and other flow channel ports are subjected to sealing treatment, therefore, the valve has good compatibility. Meanwhile, the valve core is composed of the first valve core 300 and the second valve core 400, so that more flow passages can be arranged in the valve core, the practicability is wider, the flow passage selectivity is increased, and the design of a flow passage channel is facilitated.
Example 2: referring to fig. 6-11, a second embodiment of a flow control valve is disclosed, comprising: the motor comprises at least one motor 1000, a transmission module 2000 connected with the output of the motor 1000, a first valve core 3000 with a first valve core shaft section 3010, a second valve core 4000 with a second valve core shaft section 4080 and in transmission fit with the transmission module 2000 and in fit with the first valve core 3000, a first position sensor 3040 arranged at a first position on the first valve core shaft section 3010, and a second position sensor 3050 arranged at a second position on the valve core shaft section 3010.
The number of the motors 1000 is at least two, the output of each motor 1000 is in transmission fit with the corresponding transmission module 2000, and the transmission module 2000 comprises a first transmission module 2010 and a second transmission module 2020. The two motors 1000 are of the same specification and are arranged longitudinally along the centerline of the second spool 4000.
In fig. 8, the motor 1000 is connected to the transmission modules, and when the motor 1000 operates, the two transmission modules are driven to respectively drive the first valve core 3000 and the second valve core 4000, so as to complete the flow channel switching and the flow ratio adjustment. And the first position sensor 3040 and the second position sensor 3050 monitor the first spool 3000 and the second spool 4000 in operation in real time, thereby determining the angular positions of the two spools.
In fig. 9, the first valve spool 3000 has a drop core cavity 3060 for weight reduction; and second valve core shaft section 4080 lower extreme is equipped with sealing member installation cavity 4020 and bearing installation cavity 4030, and the top is equipped with second valve core shaft section 4080, and second valve core shaft section 4080 adopts hollow design, therefore first valve core shaft section 3010 passes second valve core shaft section 4080. The top of the second valve mandrel section 4080 is provided with a second connecting spline 4040, and the sealing member mounting cavity 4020 and the bearing mounting cavity 4030 are respectively provided with a sealing member 4060 and a bearing 4070. A flow passage for communicating at least two flow passage ports is provided in the first valve spool 3000 and the second valve spool 4000. And the sealing piece 4060 is used for sealing the contact surface of the valve core shaft section 3010 and the second valve core 4000, so that the sealing performance of the valve body is improved.
The first valve core 3000 and the second valve core 4000 are symmetrically arranged, when the valve is used, flow channels in the two valve cores are all subjected to fluid pressure, and the pressures applied to the two valve cores face to opposite directions, so that the overall stress of the valve cores is reduced, and the problem of single-side compression of a disc valve is solved. Because the first valve core 3000 and the second valve core 4000 are symmetrically arranged along a plane perpendicular to the axial line of the valve body, when a certain flow passage of the first valve core 3000 is communicated, the flow passage at the opposite supporting position in the second valve core 4000 is also communicated, so that the hydraulic pressure on the upper part and the lower part of the whole valve body is the same, and the whole stress of the valve body is kept balanced.
Because the valve core is composed of two parts of a first valve core 3000 and a second valve core 4000, each valve core is preset with a plurality of flow channels, a plurality of flow channel ports are preset in the valve body, the number of the flow channel ports communicated with an external pipeline can be selected according to actual conditions, and other flow channel ports are subjected to sealing treatment, therefore, the valve has good compatibility. Meanwhile, the valve core is composed of a first valve core 3000 and a second valve core 4000, so that more flow channels can be arranged in the valve core, the practicability is wider, the flow channel selectivity is increased, and the design of a flow channel is facilitated.
The invention has the advantages that: the invention uses the double-position sensor, can detect the position of the upper and lower valve cores at the same time; the double motors are used, the upper valve element and the lower valve element can be independently driven to rotate in real time, the positions of the upper valve element and the lower valve element can be simultaneously detected by matching with the position sensors, the initial positions of the valve element installation do not need to be considered, the structure is optimized, the installation is convenient, the efficiency is improved, the maintenance is easy, and the utilization rate is improved.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
Claims (9)
1. A flow control valve, characterized in that it comprises: the automatic valve core monitoring device comprises at least one motor (1000), a transmission module (200, 2000) connected with the output of the motor (1000), a first valve core (300, 3000) with a first valve core shaft section (301, 3010), a second valve core (400, 4000) with a second valve core shaft section (408, 4080), which is in transmission fit with the transmission module (200, 2000) and is in fit with the first valve core (300, 3000), a first position sensor (304, 3040) arranged at a first position on the first valve core shaft section (301, 3010), and a second position sensor (305, 3050) arranged at a second position on the first valve core shaft section (301, 3010), wherein the second valve core shaft section (408, 4080) is sleeved on the first valve core shaft section (301, 3010), and when the motor (1000) works, the motor (1000) is in rotation fit with the transmission module (200, 2000) to drive the second valve core (400, 4000) to rotate, and simultaneously the first position sensor (304, 3040) and the second position sensor (3050) monitor the operation of the second valve core (400, 4000).
2. The flow control valve of claim 1, wherein: the number of the motors is one, and the transmission module (200) comprises a second output gear (202) matched with the second valve mandrel section (408).
3. The flow control valve according to claim 2, wherein: the top end of the first valve core shaft section (301) is provided with a magnetic block (302) which is in inductive fit with the first position sensor (304), and the second output gear (202) is sleeved with a magnetic ring (303) which is in inductive fit with the second position sensor (305).
4. The flow control valve of claim 2, wherein: the first valve core (300) is provided with a stop groove (307), and the bottom of the second valve core (400) is provided with a boss (405) which is matched with the stop groove (307) and drives the first valve core (300) to rotate.
5. The flow control valve according to claim 1, wherein: the number of the motors (1000) is at least two, the output of each motor (1000) is in transmission fit with the corresponding transmission module (2000), and the transmission module (2000) comprises a first transmission module (2010) and a second transmission module (2020).
6. The flow control valve of claim 5, wherein: the two motors (1000) adopt the same specification and are arranged longitudinally along the central line of the second valve core (4000).
7. The flow control valve of claim 5, wherein: the first transmission module (2010) comprises a first output gear (2011) matched with a first valve core shaft section (3010), and the second transmission module (2020) comprises a second output gear (2021) matched with a second valve core shaft section (4080), wherein the central lines of the first valve core shaft section (3010), the second valve core shaft section (4080) and the first output gear (2011) and the central line of the second output gear (2021) are all on the same axis.
8. The flow control valve of claim 7, wherein: the first output gear (2011) and the second output gear (2021) are sleeved with a magnetic ring (3020), and the first position sensor (3040) and the second position sensor (3050) are located on the outer side of the magnetic ring (3020).
9. The flow control valve of claim 1, wherein: the first valve spool (300, 3000) has a drop core cavity (306, 3060) for weight reduction; and the lower ends of the second valve core shaft sections (408, 4080) are provided with sealing piece mounting cavities (402, 4020) and bearing mounting cavities (403, 4030), and the sealing piece mounting cavities (402, 4020) and the bearing mounting cavities (403, 4030) are respectively provided with sealing pieces (406, 4060) and bearings (407, 4070).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211587337.8A CN115654163A (en) | 2022-12-12 | 2022-12-12 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211587337.8A CN115654163A (en) | 2022-12-12 | 2022-12-12 | Flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115654163A true CN115654163A (en) | 2023-01-31 |
Family
ID=85019162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211587337.8A Pending CN115654163A (en) | 2022-12-12 | 2022-12-12 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115654163A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210566563U (en) * | 2019-06-03 | 2020-05-19 | 杭州三花研究院有限公司 | Electromagnetic valve |
| CN111750135A (en) * | 2019-03-29 | 2020-10-09 | 罗伯特·博世有限公司 | Distribution valve, valve core and refrigerating system |
| CN114294448A (en) * | 2021-12-16 | 2022-04-08 | 华人运通(江苏)技术有限公司 | Two-stage valve with Hall sensor, control method and device thereof, vehicle and medium |
| WO2022105864A1 (en) * | 2020-11-20 | 2022-05-27 | 浙江三花汽车零部件有限公司 | Control valve and control valve system |
| CN114636003A (en) * | 2022-02-23 | 2022-06-17 | 海力达汽车科技有限公司 | Multi-way valve |
| CN115126907A (en) * | 2022-07-04 | 2022-09-30 | 海力达汽车科技有限公司 | Electronic water valve assembly and thermal management module |
| CN218000495U (en) * | 2022-04-22 | 2022-12-09 | 海力达汽车科技有限公司 | Multi-way valve with small-size valve cover and thermal management module |
-
2022
- 2022-12-12 CN CN202211587337.8A patent/CN115654163A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750135A (en) * | 2019-03-29 | 2020-10-09 | 罗伯特·博世有限公司 | Distribution valve, valve core and refrigerating system |
| CN210566563U (en) * | 2019-06-03 | 2020-05-19 | 杭州三花研究院有限公司 | Electromagnetic valve |
| WO2022105864A1 (en) * | 2020-11-20 | 2022-05-27 | 浙江三花汽车零部件有限公司 | Control valve and control valve system |
| CN114294448A (en) * | 2021-12-16 | 2022-04-08 | 华人运通(江苏)技术有限公司 | Two-stage valve with Hall sensor, control method and device thereof, vehicle and medium |
| CN114636003A (en) * | 2022-02-23 | 2022-06-17 | 海力达汽车科技有限公司 | Multi-way valve |
| CN218000495U (en) * | 2022-04-22 | 2022-12-09 | 海力达汽车科技有限公司 | Multi-way valve with small-size valve cover and thermal management module |
| CN115126907A (en) * | 2022-07-04 | 2022-09-30 | 海力达汽车科技有限公司 | Electronic water valve assembly and thermal management module |
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