CN210716207U - Four-way valve with auxiliary reversing device - Google Patents
Four-way valve with auxiliary reversing device Download PDFInfo
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- CN210716207U CN210716207U CN201921167599.2U CN201921167599U CN210716207U CN 210716207 U CN210716207 U CN 210716207U CN 201921167599 U CN201921167599 U CN 201921167599U CN 210716207 U CN210716207 U CN 210716207U
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Abstract
The utility model provides a cross valve with supplementary switching-over device, relates to cross valve technical field, and its structure includes the cross valve body, all be provided with first electro-magnet part, second electro-magnet part on the inside wall at both ends about the cross valve body, be provided with first magnetism slider, the second magnetism slider that uses with first electro-magnet part, the cooperation of second electro-magnet part in the cross valve body intracavity, first magnetism slider, second magnetism slider are connected with the inside main sliding valve of cross valve body, and first electro-magnet part, second electro-magnet part all are connected through switching element and power electricity. The utility model discloses a control one of them switch spare and switch on, produce magnetic force to the circular telegram of one of them electro-magnet part and attract magnetic slider to the pulling main slide valve removes towards this electro-magnet part, plays and prevents the dead effect of cross valve switching-over card.
Description
Technical Field
The utility model relates to a cross valve technical field especially relates to a cross valve with supplementary switching-over device.
Background
The four-way valve is one of important components of the heat pump air conditioner, and the heat pump air conditioner realizes the conversion between a refrigeration mode and a heating mode through the four-way valve, so that the requirements of users on indoor temperature in different seasons are met. The four-way valve is a pressure difference driving valve, and the piston is pushed by the pressure difference at the two ends of the piston to realize reversing, so that enough pressure difference at the two ends of the piston is ensured to overcome the friction resistance of the slide valve during reversing, and when the pressure difference of a system is insufficient, the four-way valve can be in a state that the four-way valve is not reversed or is clamped in the middle position of the valve body to cause air leakage. The existing solution changes the frequency of the compressor to increase the valve pushing force, but the overhigh frequency of the compressor can cause pressure impact to influence the service life of the four-way valve, and high-pressure protection is easy to occur.
The air leakage state means that when the main slide valve is in the middle position, three connecting pipes of the four-way valve are mutually communicated, so that the pressure difference is difficult to establish, and the air leakage state is formed. The state that the four-way valve is just at the center position of the valve body is generally called as a middle state. The four-way valve is most difficult to reverse in the neutral state because the bypass amount is large, but even if the main spool valve is stuck in the neutral position, if the flow rate reaches a certain value, a pressure difference is formed by a flow resistance loss, and when the pressure difference is greater than the friction force, the main spool valve can be pushed to be out of the neutral state. At present, most of after-sale faults of middle reversing failure are that when valve pushing force and friction force of a four-way valve are in a critical state, the residual is insufficient, and the valve is clamped in a middle position. Sometimes in critical conditions, it is only necessary to apply a small force to solve the seizing phenomenon, such as: the four-way valve is knocked on site. Because the friction force of the four-way valve has a plurality of influencing factors, how to solve the problem of dead locking of the four-way valve in the reversing process becomes a technical difficulty.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid the weak point among the prior art and provide a cross valve with supplementary switching-over device, this cross valve with supplementary switching-over device has the dead effect of cross valve switching-over card of preventing.
The purpose of the utility model is realized through the following technical scheme:
the four-way valve comprises a four-way valve body, wherein a first electromagnet part and a second electromagnet part are arranged on the inner side walls of the left end and the right end of the four-way valve body, a first magnetic slide block and a second magnetic slide block which are matched with the first electromagnet part and the second electromagnet part are arranged in a cavity of the four-way valve body, the first magnetic slide block and the second magnetic slide block are connected with a main slide valve inside the four-way valve body, the first electromagnet part and the second electromagnet part are electrically connected with a power supply through switch pieces, and one of the switch pieces is controlled to be switched on to generate magnetic force to attract the magnetic slide block when the electromagnet part is electrified, so that the main slide valve is pulled to move towards the electromagnet part.
Furthermore, the first electromagnet component comprises a first electromagnet and a second electromagnet, and the first electromagnet and the second electromagnet are respectively arranged on the upper wall and the lower wall of the inner side wall of the left end of the four-way valve body and are arranged oppositely; the second electromagnet component comprises a third electromagnet and a fourth electromagnet, the third electromagnet and the fourth electromagnet are respectively arranged on the upper wall and the lower wall of the inner side wall of the right end of the four-way valve body and are arranged oppositely, and the smooth movement of the magnetic sliding block can be ensured through the symmetrically arranged electromagnets.
Furthermore, the first electromagnet and the second electromagnet are electrically connected with a first relay; and the third electromagnet and the fourth electromagnet are electrically connected with a second relay, and the on-off of the electromagnets is controlled through the relays.
Furthermore, first relay, second relay electric connection have the main control board, the main control board electric connection has the sensor, comes real-time data acquisition through the sensor to carry out the analysis to the data of gathering through the main control board, then the on-off of control relay reaches the purpose of real-time supervision control.
Furthermore, the first relay, the second relay and the main control board are all electrically connected with a power supply.
Further, the sensor is a temperature sensor.
Furthermore, the temperature sensor can be arranged at the position of the evaporation side inlet and outlet water, a critical value X of the temperature difference of the outlet water is measured according to the condition of the machine body, if the temperature difference of the inlet water and the outlet water is smaller than the value X, the reversing blocking of the four-way valve is proved to be dead at the moment, the pressure balance is caused by air leakage, the temperature difference of the inlet water and the outlet water is reduced, the main control panel supplies power to the relay after judging a signal that the temperature difference is reduced, and the relay sucks the power to supply power to the; when the temperature difference of the inlet water and the outlet water at the evaporation side is recovered to be normal, the power supply to the electromagnet is stopped, and the electromagnetic force disappears.
Further, the sensor is a pressure sensor.
Furthermore, the pressure sensors can be arranged at outlets of a D pipe and an S pipe of the four-way valve body, a pressure difference critical value Y is measured according to the condition of the machine body, when the actual pressure value is smaller than the Y value, the air leakage blocking state is judged, and the arrival signal of the main board is electrified and attracted to the relay.
The utility model has the advantages that: the utility model discloses a cross valve with supplementary switching-over device, including the cross valve body, all be provided with first electromagnet part, second electromagnet part on the inside wall at both ends about the cross valve body, cross valve body intracavity is provided with first magnetic slide, the second magnetic slide that uses with first electromagnet part, the cooperation of second electromagnet part, first magnetic slide, second magnetic slide are connected with the inside main sliding valve of cross valve body, and first electromagnet part, second electromagnet part all are connected through switch and power electricity, the utility model discloses a control one of them switch and switch on, produce magnetic force to one of them electromagnet part circular telegram and attract magnetic slide to pulling main sliding valve removes towards this electromagnet part, plays the dead effect of preventing cross valve switching-over card.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a schematic diagram of the overall structure of a four-way valve with an auxiliary reversing device according to the present invention.
Fig. 2 is the overall structure schematic diagram of the utility model discloses a cross valve with supplementary switching-over device is in air conditioner refrigeration operating mode.
Fig. 3 is the overall structure schematic diagram of the utility model discloses a cross valve with supplementary switching-over device is in air conditioner heating operating mode.
Fig. 4 is a schematic view of the whole structure of the four-way valve with the auxiliary reversing device in the air-conditioning air-communicating state.
The figure includes:
four-way valve body 1, first electromagnet member 2, first electromagnet 21, second electromagnet 22, second electromagnet member 3,
The device comprises a third electromagnet 31, a fourth electromagnet 32, a first magnetic slide block 4, a second magnetic slide block 5, a main slide valve 6, a first relay 7, a second relay 8, a main control board 9 and a power supply 10.
Detailed Description
The invention will be further described with reference to the following examples.
A four-way valve with an auxiliary reversing device of this embodiment, as shown in fig. 1, includes a four-way valve body 1, a first electromagnet member 2 and a second electromagnet member 3 are disposed on inner side walls of left and right ends of the four-way valve body 1, a first magnetic slider 4 and a second magnetic slider 5 are disposed in a cavity of the four-way valve body 1, the first magnetic slider 4 and the second magnetic slider 5 are used in cooperation with the first electromagnet member 2 and the second electromagnet member 3, the first magnetic slider 4 and the second magnetic slider 5 are connected with a main sliding valve 6 inside the four-way valve body 1, the first electromagnet member 2 and the second electromagnet member 3 are electrically connected with a power supply through a switch, and by controlling the conduction of one of the switch members, the electromagnet member is energized to generate a magnetic force to attract the magnetic slider, so as to pull the main sliding valve 6 to.
The first electromagnet component 2 comprises a first electromagnet 21 and a second electromagnet 22, and the first electromagnet 21 and the second electromagnet 22 are respectively arranged on the upper wall and the lower wall of the inner side wall of the left end of the four-way valve body 1 and are arranged oppositely; the second electromagnet component 3 comprises a third electromagnet 31 and a fourth electromagnet 32, the third electromagnet 31 and the fourth electromagnet 32 are respectively arranged on the upper wall and the lower wall of the inner side wall of the right end of the four-way valve body 1, the upper wall and the lower wall are arranged oppositely, and the smooth movement of the magnetic sliding block can be ensured through the symmetrically arranged electromagnets.
The first electromagnet 21 and the second electromagnet 22 are electrically connected with a first relay 7; the third electromagnet 31 and the fourth electromagnet 32 are electrically connected with a second relay 8, and the on-off of the electromagnets is controlled through the relays.
The first relay 7 and the second relay 8 are electrically connected with a main control board 9, and the first relay 7, the second relay 8 and the main control board are electrically connected with a power supply 10.
The main control board 9 is electrically connected with a sensor (not shown), the sensor is a temperature sensor, the temperature sensor can be arranged at an evaporation side inlet and outlet water position, the temperature of the evaporation side inlet and outlet water position is collected in real time through the temperature sensor, a water temperature difference critical value X is measured according to the condition of a machine body, the collected temperature data is analyzed through the main control board 9, if the temperature difference of inlet water and outlet water is smaller than the value X, the reversing and blocking of the four-way valve are proved to be dead at the moment, the pressure balance is caused by air leakage, the temperature difference of inlet water and outlet water is reduced, the main control board 9 supplies power to the first relay 7 or the second relay 8 according to a working mode after judging a signal that the temperature difference is reduced, and the relay attracts; when the temperature difference of the inlet water and the outlet water at the evaporation side is recovered to be normal, the power supply to the electromagnet is stopped, and the electromagnetic force disappears.
As another embodiment, the sensor may also be a pressure sensor, the pressure sensor may be installed at the outlet of the D pipe and the S pipe of the four-way valve body 1, and measures a pressure difference critical value Y according to the situation of the machine body, when the actual pressure value is smaller than the Y value, it is determined that the air leakage is blocked, and the arrival signal of the main board is electrically connected to the relay for actuation. Similarly, the main control judgment signal can also be used for judging the temperature difference of the condensation side.
For better explanation, the four-way valve is now incorporated into an air conditioner, and since the working principle of using the temperature sensor is the same as that of using the pressure sensor, the principle explanation is now made by selecting the way in which the temperature sensor collects information, and the state of the four-way valve in the air conditioner is shown in fig. 2, 3 and 4.
When the air conditioner is changed from a refrigerating state to a heating state, the magnetic slide block in the attached drawing 2 can move rightwards, the air conditioner is in an air-mixing blocking state when the air conditioner is moved to the attached drawing 4 state, the pressure difference between a D pipe and an S pipe of the unit is reduced at the moment, the heat exchange temperature difference between an evaporation side and a condensation side is also reduced, after a main control sends a reversing instruction, the temperature of water at the evaporation side is judged, if the temperature difference of the water at the inlet and the outlet is smaller than an X value, the reversing blocking of a four-way valve is proved to be dead, the pressure difference is reduced due to air mixing, the temperature difference of the water at the inlet and the outlet is reduced, the relay 2 is powered by a mainboard after the signal that the temperature difference is reduced is judged, the relay 2 is changed into a closed state from a disconnection state, the power supply supplies power to the electromagnet 3 and the electromagnet 4 through. When the temperature difference of the inlet water and the outlet water at the evaporation side is recovered to be normal, the power supply to the electromagnet is stopped, and the electromagnetic force disappears.
When heating changes the refrigeration state, the magnetic slide block in figure 3 can move to the left, when moving to figure 4 state, be in the dead state of cross gas card, the pressure difference of unit D pipe and S pipe can diminish this moment, lead to the heat transfer difference in temperature of evaporation side and condensation side also to diminish, after the main control sends the switching-over instruction, judge evaporation side business turn over water temperature, if business turn over water difference in temperature is less than X value, prove that cross gas valve switching-over card is dead this moment, cross gas leads to the pressure difference to diminish, business turn over water difference in temperature diminishes, the mainboard judges that the signal that the difference in temperature diminishes supplies power to relay 1 at this moment, relay 1 becomes closed state by the disconnection, the power supplies power to electromagnet 1 and electromagnet 2 through relay 1, electromagnet 1 and electromagnet 2 produce the suction that to the right will block magnetic slide to the right side with the magnetic slide block 1 of intermediate position, solve cross valve switching. When the temperature difference of the inlet water and the outlet water at the evaporation side is recovered to be normal, the power supply to the electromagnet is stopped, and the electromagnetic force disappears.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The utility model provides a cross valve with supplementary switching-over device, includes the cross valve body, its characterized in that: the four-way valve is characterized in that a first electromagnet component and a second electromagnet component are arranged on the inner side walls of the left end and the right end of the four-way valve body, a first magnetic sliding block and a second magnetic sliding block which are matched with the first electromagnet component and the second electromagnet component are arranged in a cavity of the four-way valve body, the first magnetic sliding block and the second magnetic sliding block are connected with a main sliding valve inside the four-way valve body, and the first electromagnet component and the second electromagnet component are electrically connected with a power supply through a switch piece.
2. A four-way valve having an auxiliary reversing device as recited in claim 1, wherein: the first electromagnet component comprises a first electromagnet and a second electromagnet, and the first electromagnet and the second electromagnet are respectively arranged on the upper wall and the lower wall of the inner side wall of the left end of the four-way valve body and are arranged oppositely; the second electromagnet component comprises a third electromagnet and a fourth electromagnet, and the third electromagnet and the fourth electromagnet are respectively arranged on the upper wall and the lower wall of the inner side wall of the right end of the four-way valve body and are arranged oppositely.
3. A four-way valve having an auxiliary reversing device as recited in claim 2, wherein: the first electromagnet and the second electromagnet are electrically connected with a first relay; and the third electromagnet and the fourth electromagnet are electrically connected with a second relay.
4. A four-way valve having an auxiliary reversing device as recited in claim 3, wherein: the first relay and the second relay are electrically connected with a main control board, and the main control board is electrically connected with a sensor.
5. A four-way valve having an auxiliary reversing device as recited in claim 4, wherein: the first relay, the second relay and the main control board are all electrically connected with a power supply.
6. A four-way valve having an auxiliary reversing device as recited in claim 4, wherein: the sensor is a temperature sensor.
7. A four-way valve having an auxiliary reversing device as recited in claim 6, wherein: the temperature sensor is arranged at the position of the evaporation side inlet and outlet water.
8. A four-way valve having an auxiliary reversing device as recited in claim 4, wherein: the sensor is a pressure sensor.
9. A four-way valve having an auxiliary reversing device as recited in claim 8, wherein: the pressure sensors are arranged at the outlets of the D pipe and the S pipe of the four-way valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167599.2U CN210716207U (en) | 2019-07-24 | 2019-07-24 | Four-way valve with auxiliary reversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167599.2U CN210716207U (en) | 2019-07-24 | 2019-07-24 | Four-way valve with auxiliary reversing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210716207U true CN210716207U (en) | 2020-06-09 |
Family
ID=70966745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921167599.2U Active CN210716207U (en) | 2019-07-24 | 2019-07-24 | Four-way valve with auxiliary reversing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210716207U (en) |
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2019
- 2019-07-24 CN CN201921167599.2U patent/CN210716207U/en active Active
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