CN201027614Y - Electronic reversal valve of compressor - Google Patents
Electronic reversal valve of compressor Download PDFInfo
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- CN201027614Y CN201027614Y CNU2007200010047U CN200720001004U CN201027614Y CN 201027614 Y CN201027614 Y CN 201027614Y CN U2007200010047 U CNU2007200010047 U CN U2007200010047U CN 200720001004 U CN200720001004 U CN 200720001004U CN 201027614 Y CN201027614 Y CN 201027614Y
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- 230000009471 action Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 21
- 238000002360 preparation method Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 10
- 239000011148 porous material Substances 0.000 abstract 2
- 238000007789 sealing Methods 0.000 description 16
- 238000006073 displacement reaction Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an electronic change valve of compressor, comprising a change valve and an on-off valve for switching on/off a reservoir low pressure tube, wherein, the change valve comprises a rotary switching slide block and a valve seat in surface contact with the slide block; the subface of the slide block is provided with a step higher than the circumference; the step is provided with a low pressure intracavity which is communicated with the reservoir low pressure tube through the corresponding low pressure through hole positioned inside the valve seat; under the action of low pressure, the low pressure intracavity of the slide block is in airtight connection with the low pressure through hole of the valve seat; the part of the subface of the slide block lower than the step is a high pressure part which is in high-pressure communication with the outside; the valve seat is provided with a pore connected with a cylinder; when the slide block rotates to a different switching mode, the pore switches between the high-pressure part and the low pressure intracavity of the slide block to complete the switching of different mode capacity of the compressor. The utility model can realize multimode switching at lower cost.
Description
Technical Field
The utility model relates to a switching-over valve especially relates to an electromagnetic balance formula electronic reversing valve who is applied to on varactor formula compressor.
Background
In the refrigeration system with larger displacement using the 2-cylinder rotary compressor at present, the capacity variable characteristic of the compressor is realized by changing the on-off of 2 cylinders of the compressor, namely, by controlling the compression or stopping the compression of the 2 cylinders, so that the rotary compressor can discharge the displacement in two modes. The variable-capacity compressor is beneficial to energy conservation of the whole system, and compared with the compressor adopting the frequency conversion technology in the prior art, the variable-capacity compressor also has the advantages of reliable performance, simple structure, low cost and the like.
At present, two kinds of variable displacement compressors with two switching modes are commonly used, which have two cylinders with the same displacement, and the displacement of the compressor is switched between two modes of 100% and 50% by the combination of the modes that one cylinder keeps compressing and the other cylinder compresses or stops compressing. However, in the application of systems such as air conditioners, three switching modes such as 100%, 70% and 30% are usually required, and the three-stage switching is more beneficial to saving energy of the system, more meeting different requirements of users, and achieving a comfortable effect. In the multi-mode variable displacement compressor in the prior art, a four-way reversing valve is generally adopted as a valve for controlling the work of two cylinders. And the slide block of the four-way reversing valve is positioned on the valve seat. The slider is provided with a through groove communicated with high pressure, and the valve seat is provided with a pipe hole communicated with the compressor. The four-way reversing valve further comprises a pilot valve, when the sliding block is switched in a rotating mode, gas pressure difference force is required to be generated at two ends of the sliding block by the pilot valve, and the sliding block is pushed to rotate relative to the valve seat through the pressure of the gas pressure difference. Through the clockwise and anticlockwise rotation of the sliding block, the pipe holes in the valve seat are switched under different air pressures, so that the corresponding compressor is correspondingly compressed or stops compressing, and the switching of different modes is realized. However, in the reversing valve in the prior art, the sliding block is always in contact with the valve seat surface, so that the friction force between the sliding block and the valve seat is large when the sliding block rotates, the sliding block is easy to wear, and the characteristics of long service life, low leakage and the like cannot be achieved.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an electronic directional valve of a compressor capable of realizing multi-mode switching, which has a simple structure, reliable operation and low cost.
In order to solve the problems, the utility model provides an electronic reversing valve of a compressor, which comprises an on-off valve for controlling the pressure difference by connecting and disconnecting a low-pressure pipe of a liquid storage device and a reversing valve driven by a stepping motor, wherein the reversing valve comprises a slide block for rotary switching and a valve seat in contact with the surface of the slide block; wherein,
the bottom surface of the sliding block is provided with a step higher than the periphery, the step is provided with a low-pressure inner cavity, the low-pressure inner cavity is communicated with the low-pressure pipe of the liquid reservoir through a corresponding low-pressure through hole in the valve seat, and the low-pressure inner cavity of the sliding block is hermetically connected with the low-pressure through hole of the valve seat under the action of low pressure; the part of the bottom surface of the sliding block, which is lower than the step, is a high-pressure part and is communicated with the outside at high pressure;
the valve seat is provided with a pipe hole correspondingly connected with the air cylinder, and when the sliding block rotates to different switching modes, the pipe hole correspondingly switches between a high-pressure part and a low-pressure inner cavity on the sliding block respectively to switch different mode capacities of the compressor.
Preferably, the high-pressure part of the sliding block is also provided with an arc-shaped groove; and two ends of the arc-shaped groove are respectively provided with an arc stop block.
Preferably, a protruding stop pin is further disposed on the valve seat, and the stop pin is located in the circular arc groove of the slider.
Preferably, the sliding block is linked with a bearing of the reversing valve through a hinge joint to rotate.
Preferably, the bottom end of the bearing is provided with a symmetrical plane shaft, the top end of the sliding block is correspondingly provided with a clamping groove matched with the plane shaft, and the plane shaft can be fixed in the clamping groove to drive the sliding block to rotate along with the bearing in a linkage manner.
Preferably, the bottom of bearing is equipped with a square shaft, correspondingly the top of slider be equipped with the square draw-in groove that square shaft matches, square shaft can be fixed in the draw-in groove, drive the slider along with the bearing interlock is rotatory.
Preferably, the bottom end of the bearing is provided with a cylindrical gear, the top end of the sliding block is provided with a cylindrical inner gear matched with the shaft, and the cylindrical gear can be meshed in the cylindrical inner gear to drive the sliding block to rotate along with the bearing in a linkage manner.
Preferably, the on-off valve and the reversing valve are hermetically fixed in the same valve body, a low-pressure pipe of the liquid accumulator is communicated with the low-pressure through hole of the valve seat through a low-pressure connecting pipe, and the on-off valve controls the on-off between the low-pressure connecting pipe and the low-pressure pipe of the liquid accumulator.
Preferably, the on-off valve and the reversing valve are respectively fixed on different valve bodies in a sealing manner, the two valve bodies are welded into a whole, a low-pressure connecting pipe is communicated with the liquid accumulator at low pressure in the two valve bodies through a connecting pipe, and the on-off valve controls the on-off between the connecting pipe and the low-pressure pipe of the liquid accumulator.
Preferably, the on-off valve and the reversing valve are respectively fixed on different valve bodies, the two valve bodies are fixed on the same mounting plate through screws, a low-pressure connecting pipe is communicated with the liquid accumulator at a low pressure through a connecting pipe, and the on-off valve controls the on-off between the connecting pipe and the low-pressure pipe of the liquid accumulator.
Compared with the prior art, the utility model has the advantages of it is following:
firstly, a low-pressure inner cavity on the bottom surface of the sliding block is communicated with a low-pressure pipe of the liquid reservoir through a corresponding low-pressure through hole in the valve seat. Under a normal state, the sliding block is prevented from easily rotating due to thrust force generated by the difference between the internal pressure and the external pressure of the sliding block; when the sliding block needs to rotate, the connection between the inner cavity of the sliding block and the low-pressure pipe of the liquid storage device is disconnected through the on-off valve, the sliding block achieves balance of internal pressure and external pressure through high-pressure leakage, thrust is eliminated, and the sliding block can rotate easily. The utility model discloses utilize the on-off valve is expert, is disconnected reservoir low-pressure pipe changes the inside and outside pressure difference of slider accomplishes the switching. When the sliding block rotates, the friction force between the sliding block and the valve seat is greatly reduced, and therefore the service life of the sliding block can be prolonged. And simultaneously, the utility model discloses only when the switching-over, need the circular telegram, its electric cost is very low, is favorable to the energy-conservation of system.
Drawings
Fig. 1 is a schematic structural view of the electronic directional valve of the present invention;
fig. 2a is a bottom view of the slider of the present invention;
fig. 2b is a front view of the slider of the present invention;
fig. 2c is a bottom view of the valve seat of the present invention;
FIG. 3 is a schematic view of an embodiment of the connection between the direction valve and the communication valve according to the present invention;
FIG. 4 is a schematic view of a second embodiment of the connection between the reversing valve and the communication valve according to the present invention;
FIG. 5 is a schematic view of an embodiment of the connection between the bearing and the slider;
FIG. 6 is a schematic view of a second embodiment of the connection between the bearing and the slider;
FIG. 7 is a third schematic view of the embodiment of the connection mode of the bearing and the sliding block;
fig. 8 is a transverse cross-sectional view of the slider in different switching modes of the present invention; wherein,
fig. 8(a) is a transverse cross-sectional view of the slider in the switching mode of the present invention;
fig. 8(b) is a transverse cross-sectional view of the slider in the second switching mode of the present invention;
fig. 8(c) is a transverse cross-sectional view of the slider in the switching mode three of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Please refer to fig. 1, which is a schematic structural diagram of the electronic directional valve of the present invention. The utility model provides an electronic reversing valve of compressor comprises two parts of a reversing valve and an on-off valve, wherein the reversing valve comprises a permanent magnet rotor 1, a stator coil 2, a bearing 3, a lower bearing seat 4, a sliding block 5, a valve seat 6, a sealing sleeve 7, an upper bearing seat 8 and a valve body 9; the on-off valve includes: the device comprises a sealing steel ball 10, a valve core 11, an attractor 12, a spring 13, a soft magnet 14, an electromagnetic coil 15 and a sealing conduit 16; wherein,
the reversing valve is sealed and fixed on a valve body 9 through a sealing sleeve 7, in the reversing valve, a permanent magnet rotor 1 is injected on a bearing 3 and is installed in the sealing sleeve 7, a stator coil 2 is fixedly sleeved outside the permanent magnet rotor 1, and the permanent magnet rotor 1 is driven to operate through a rotating magnetic field generated after the stator coil 2 is electrified. The lower bearing block 4 and the upper bearing block 8 are respectively fixed at the upper end and the lower end of the bearing 3 and are welded on the sealing sleeve 7. A gap is reserved between the upper end of the lower bearing seat 4 and the permanent magnet rotor 1, a boss 41 is further arranged at the gap, and the boss 41 is annularly sleeved on the periphery of the bearing 3 and is fixed with the bearing 3 into a whole, so that the bearing 3 is firmly fixed between the upper bearing seat 4 and the lower bearing seat 8 and cannot axially move. The bottom end of the bearing 3 is movably connected with a sliding block 5, and the sliding block 5 can rotate along with the bearing 3 and can be freely detached from the bearing 3. The bottom end of the sliding block 5 is in surface contact with the top surface of the valve seat 6, the valve seat 6 is fixed on the valve body 9, and the sliding block 5 can rotate on the valve seat 6 relative to the valve seat 6.
Fig. 2a and 2b are a bottom view and a front view of the slider according to the present invention. A step higher than the periphery is arranged on the bottom surface of the sliding block 5, a low-pressure inner cavity is arranged on the step, and the low-pressure inner cavity is communicated with a low-pressure pipe of the liquid reservoir through a corresponding low-pressure through hole in the valve seat; under the action of low pressure, the low-pressure inner cavity of the sliding block is hermetically connected with the low-pressure through hole of the valve seat; the part of the bottom surface of the sliding block, which is lower than the step, is a high-pressure part and is communicated with the outside at high pressure; as shown in fig. 2a, the low pressure cavity of the slider may preferably be an elliptical recess 51, while a circular arc groove 52 may preferably be provided in the high pressure portion. Two ends of the arc-shaped groove 52 are respectively provided with an arc stop 53 and an arc stop 54. As shown in fig. 2c, a protruding stop pin 61 is further fixed on the valve seat 6, and the stop pin 61 is located in the circular arc groove 52 of the slider 5, so that when the slider 5 rotates clockwise and counterclockwise, the stop pin 61 can be respectively abutted by the circular arc stopper 53 and the circular arc stopper 54 for limiting. A cylindrical through hole 64 is further formed in the valve seat 6 at a position corresponding to the elliptical groove 51 of the slider 5, and the elliptical groove 51 of the slider 5 is communicated with a low-pressure pipe of the reservoir through the cylindrical through hole 64 by the cylindrical through hole 64. The valve seat is provided with pipe holes 62 and 63 correspondingly connected with the cylinder A, B, and when the slider 5 rotates to different switching modes, the pipe holes 62 and 63 are respectively switched between two grooves, namely the elliptical groove 51 and the circular arc groove 52, on the slider 5, so that the switching of different mode capacities of the compressor is completed.
Returning to fig. 1, the on-off valve is fixed on the valve body 9 in a sealing manner through the sealing conduit 16, in the on-off valve, the sealing steel ball 10 is fixed on the valve core 11, the valve core 11 passes through the attractor 12 and is fixed on the soft magnet 14, the attractor 12 and the soft magnet 14 are fixedly connected through the spring 13, and under the condition of no external force, the spring 13 keeps a certain distance between the soft magnet 14 and the attractor 12 by utilizing the elasticity of the spring 13. Thereby driving the sealing steel ball 10 to be separated from the valve port 19, at this time, the valve port 19 is communicated with the low-pressure connecting pipe 17, so that the sliding block 5 is communicated with the reservoir low-pressure pipe 18.
In the above embodiment, the on-off valve and the reversing valve are respectively fixed in the same valve body 9 through the sealing sleeve 7 and the sealing conduit 16 in a sealing manner, and besides, the on-off valve can also be connected with the reversing valve through other mounting manners. Other connection modes of the on-off valve and the reversing valve are described in the following with reference to the attached drawings:
please refer to fig. 3, which is a schematic view of an embodiment of a connection mode between the direction valve and the communication valve according to the present invention.
In this embodiment, the direction valve is fixed on the valve body 91, the on-off valve is fixed on the valve body 92, the valve body 91 and the valve body 92 are fixed into a whole by welding, a connection pipe 20 is arranged in the valve body 91 and the valve body 92 and connected between the low-pressure connection pipe 17 and the liquid reservoir low-pressure pipe 18, the on-off valve controls the on-off between the connection pipe 20 and the liquid reservoir low-pressure pipe 18, and in the on-state, the liquid reservoir low-pressure pipe 18 is communicated with the low-pressure connection pipe 17.
Please refer to fig. 4, which is a schematic view of an embodiment of a connection mode between the direction valve and the communication valve according to the present invention.
In this embodiment, the direction valve is fixed to the valve body 91, the on-off valve is fixed to the valve body 92, and the valve body 91 and the valve body 92 are fixed to the same L-shaped mounting plate 93 by screws. The valve body 91 and the valve body 92 are connected to each other by a connection pipe 21, and the connection pipe 21 is connected between the low-pressure connection pipe 17 and the accumulator low-pressure pipe 18. The on-off valve controls the on-off between the connecting pipe 21 and the liquid accumulator low-pressure pipe 18, and when the connecting pipe is in a conducting state, the liquid accumulator low-pressure pipe 18 is communicated with the low-pressure connecting pipe 17.
In addition, in the above-mentioned preferred embodiment of the connection relationship between the reversing valve and the communication valve, the shapes of the valve body of the reversing valve and the valve body of the communication valve can be set to different solid geometries according to actual requirements. For example, the valve body of the reversing valve can be arranged into any geometric body such as a cylinder, a hexagonal cylinder and the like. Meanwhile, the connection mode of the communication valve and the reversing valve is not limited to the preferred embodiments listed above, and the connection mode and the connection position can be changed at will according to actual requirements.
In this embodiment, the slider 5 in the reversing valve is hinged to the bearing 3, and is driven by the permanent magnet rotor 1 to rotate together with the bearing 3. Referring to the drawings, a preferred connection manner of the bearing 3 and the slider 5 in the reversing valve is described below, as shown in fig. 5, which is a schematic view of an embodiment of the connection manner of the bearing and the slider, a bottom end of the bearing 3 is a plane shaft 31 that is axially symmetric, and correspondingly, a clamping groove 55 that is matched with the plane shaft 31 is arranged at a top end of the slider 5. The plane shaft 31 of the bearing 3 can be installed and fixed in the slot 55 of the sliding block 5, and drives the sliding block 5 to rotate together with the bearing 3.
As shown in fig. 6, which is a schematic view of a second embodiment of the connection between the bearing and the slider, the bottom end of the bearing 3 is an axially symmetric square shaft 32, and correspondingly, a square slot 56 matching with the square shaft 32 is disposed at the top end of the slider 5. The square shaft 32 of the bearing 3 can be installed and fixed in the square clamping groove of the sliding block 5, and drives the sliding block 5 to rotate together with the bearing 3 in a linkage manner.
As shown in fig. 7, which is a third schematic view of an embodiment of a connection mode of the bearing and the slider, a cylindrical gear 33 is arranged at the bottom end of the bearing 3, and correspondingly, a cylindrical internal gear 57 matched with the cylindrical gear 33 is arranged at the top end of the slider 5. The cylindrical gear 33 of the bearing 3 can be installed and fixed in the cylindrical inner gear 57 of the slider 5, and drives the slider 5 to rotate together with the bearing 3.
The utility model provides an electronic reversing valve has three kinds of switching modes through slider 5's rotation, as shown in figure 8, it does the utility model discloses under different switching modes the transverse section picture of slider and disk seat combination.
When the slide block 5 is in the first switching mode, as shown in fig. 8(a), the stop pin 61 on the valve seat 6 is located at the middle position of the circular arc groove 52 on the slide block 5, and at the same time, two pipe holes 62, 63 on the valve seat 6, which are connected with the cylinder A, B, are both located in the circular arc groove 52 on the slide block 5, at this time, the pipe holes a, 62, 63 are all communicated with the external high pressure of the slide block 5, and the elliptical groove 51 of the slide block 5 is communicated with the reservoir low pressure pipe 18 through the cylindrical through hole 64 on the valve seat and the low pressure connecting pipe 17.
When the slider 5 rotates counterclockwise and is in the second switching mode, as shown in fig. 8(B), the stop pin 61 on the valve seat 6 is located at the left end arc stopper 53 of the arc groove 52 on the slider 5, the pipe hole 62 of the connection cylinder a is located in the elliptical groove 51 of the slider 5, and the pipe hole 63 of the connection cylinder B is located in the arc groove 52 of the slider 5, at this time, the pipe hole 62 is connected to the reservoir low-pressure pipe 18 through the cylindrical through hole 64 on the valve seat and the low-pressure connection pipe 17, and the pipe hole 63 is in high-pressure communication with the outside of the slider 5.
When the slider 5 rotates clockwise, and is in a third switching mode, as shown in fig. 8(c), that is, the stop pin 61 on the valve seat 6 is located at the right end arc stopper 54 of the arc groove 52 on the slider 5, the pipe hole 62 on the valve seat 6 connected to the cylinder a is located in the arc groove 52 of the slider 5, and the pipe hole 63 connected to the cylinder B is located in the elliptical groove 51 of the slider 5, at this time, the pipe hole 63 is connected to the reservoir low-pressure pipe 18 through the cylindrical through hole 64 on the valve seat and the low-pressure connecting pipe 17, and the pipe hole 62 is in high-pressure communication with the outside of the slider 5.
Slider 5, generally oval recess 51 in slider 5 is the low pressure side, and its outside is the high pressure side, the refrigerant that the high pressure side leaked into the low pressure side when the compressor operation is constantly siphoned away by the compressor, therefore the low pressure side remains the low pressure throughout. Thus, the slider 5 is pressed against the valve seat 6 by the difference between the internal and external pressures of the slider 5, and a large thrust force is generated between the slider 5 and the valve seat 6, so that the slider 5 is not easily rotated. When the rotation is needed, the inner pressure and the outer pressure of the sliding block 5 are balanced, so that the sliding block 5 does not generate pressure on the valve seat 6 any more, namely, the thrust force is eliminated, and the rotation can be easily performed. The specific process of switching the slider 5 is as follows: when the compressor is operated, the inner cavity of the sliding block 5, namely the elliptical groove 51 is communicated with the low-pressure pipe 18 of the liquid accumulator through the low-pressure connecting pipe 17, and at the moment, the sliding block 5 has an inner and outer pressure difference; when the operation mode of the compressor is switched, firstly, after the electromagnetic coil 15 is electrified, the soft magnet 14 generates magnetic attraction under the action of the electromagnetic coil 15 and is attracted with the attractor 12, and as the attractor 12 is fixed on the valve body 9 and the soft magnet 14 can move axially, the soft magnet 14 pushes the sealing steel balls 10 to move forwards together when being attracted with the attractor 12. Therefore, the sealing steel ball 10 seals the valve port 19 of the reservoir low-pressure pipe 18, so that the low-pressure connecting pipe 17 of the sliding block 5 is isolated from the reservoir. Since the volume of the elliptical groove 51 of the slider 5 is small, the leakage of the external high pressure of the slider 5 into the low pressure side of the slider 5 quickly balances the internal and external pressures of the slider 5, so that no thrust is generated between the slider 5 and the valve seat 6. At this time, the stator coil 2 of the reversing valve is electrified, the generated magnetic force makes the permanent magnet rotor 1 run, and the slide block 5 is driven by the bearing 3 to rotate positively and negatively with the permanent magnet rotor 1.
The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electronic reversing valve of a compressor comprises an on-off valve for controlling pressure difference by switching on and off a low-pressure pipe of a liquid storage device, and a reversing valve driven by a stepping motor, wherein the reversing valve comprises a sliding block for rotary switching and a valve seat in surface contact with the sliding block; it is characterized in that the preparation method is characterized in that,
the bottom surface of the sliding block is provided with a step higher than the periphery, the step is provided with a low-pressure inner cavity, the low-pressure inner cavity is communicated with the low-pressure pipe of the liquid reservoir through a corresponding low-pressure through hole in the valve seat, and the low-pressure inner cavity of the sliding block is hermetically connected with the low-pressure through hole of the valve seat under the action of low pressure; the part of the bottom surface of the sliding block, which is lower than the step, is a high-pressure part and is communicated with the outside at high pressure;
the valve seat is provided with a pipe hole correspondingly connected with the air cylinder, and when the sliding block rotates to different switching modes, the pipe hole correspondingly switches between a high-pressure part and a low-pressure inner cavity on the sliding block respectively to switch different mode capacities of the compressor.
2. The electronically commutated valve of claim 1, wherein the high pressure portion of the slider is further provided with an arcuate slot; and two ends of the arc-shaped groove are respectively provided with an arc stop block.
3. An electronically commutated valve as defined in claim 2, further comprising a raised stop pin on said valve seat, said stop pin being located in an arcuate slot in said slider.
4. The electronically commutated valve of claim 1, wherein the slider is pivotally coupled to the bearing of the commutated valve.
5. The electronic reversing valve according to claim 4, wherein the bottom end of the bearing is provided with a symmetrical plane shaft, the top end of the sliding block is correspondingly provided with a clamping groove matched with the plane shaft, and the plane shaft can be fixed in the clamping groove to drive the sliding block to rotate along with the bearing.
6. The electronic reversing valve according to claim 4, wherein a square shaft is arranged at the bottom end of the bearing, a square clamping groove matched with the square shaft is correspondingly arranged at the top end of the sliding block, and the square shaft can be fixed in the clamping groove to drive the sliding block to rotate along with the bearing.
7. The electronically commutated valve as recited in claim 4, wherein a cylindrical gear is disposed at a bottom end of the bearing, and a cylindrical internal gear matched with the shaft is disposed at a top end of the slider, and the cylindrical gear can be engaged with the cylindrical internal gear to drive the slider to rotate in conjunction with the bearing.
8. The electronic reversing valve according to claim 1, wherein the on-off valve and the reversing valve are hermetically fixed in the same valve body, a low-pressure pipe of the liquid reservoir is communicated with the low-pressure through hole of the valve seat through a low-pressure connecting pipe, and the on-off valve controls the on-off between the low-pressure connecting pipe and the low-pressure pipe of the liquid reservoir.
9. The electronic reversing valve according to claim 1, wherein the on-off valve and the reversing valve are hermetically fixed on different valve bodies respectively, the two valve bodies are welded into a whole, a low-pressure connecting pipe is communicated with the reservoir at low pressure in the two valve bodies through a connecting pipe, and the on-off valve controls the on-off between the connecting pipe and the reservoir low-pressure pipe.
10. The electronically commutated valve as defined in claim 1, wherein the on-off valve and the commutation valve are fixed to different valve bodies, the two valve bodies are fixed to the same mounting plate by screws, a low-pressure connecting pipe is communicated with the reservoir at a low pressure through a connecting pipe, and the on-off valve controls the connection and disconnection between the connecting pipe and the reservoir low-pressure pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200010047U CN201027614Y (en) | 2007-01-15 | 2007-01-15 | Electronic reversal valve of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200010047U CN201027614Y (en) | 2007-01-15 | 2007-01-15 | Electronic reversal valve of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027614Y true CN201027614Y (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200010047U Expired - Fee Related CN201027614Y (en) | 2007-01-15 | 2007-01-15 | Electronic reversal valve of compressor |
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| CN (1) | CN201027614Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363151A (en) * | 2012-04-10 | 2013-10-23 | 浙江盾安禾田金属有限公司 | Rotating type electromagnetic four-way reversing valve |
-
2007
- 2007-01-15 CN CNU2007200010047U patent/CN201027614Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363151A (en) * | 2012-04-10 | 2013-10-23 | 浙江盾安禾田金属有限公司 | Rotating type electromagnetic four-way reversing valve |
| CN103363151B (en) * | 2012-04-10 | 2016-12-14 | 浙江盾安禾田金属有限公司 | A kind of rotary type electromagnetism four-way change-over valve |
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| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DUNAN ARTIFICIAL ENVIRONMENTAL APPARATUS CO., LTD Free format text: FORMER OWNER: DUNAN PRECISION INDUSTRY GROUP CO., LTD., ZHEJIANG Effective date: 20080229 |
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Effective date of registration: 20080229 Address after: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee after: Zhejiang Dun'an Artificial Environment Equipment Co., Ltd. Address before: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee before: Zhejiang Dun'an Precision Industries Group Co., Ltd. |
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Granted publication date: 20080227 Termination date: 20140115 |