CN217979372U - Enhanced vapor injection device and refrigerating system - Google Patents
Enhanced vapor injection device and refrigerating system Download PDFInfo
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- CN217979372U CN217979372U CN202221864957.7U CN202221864957U CN217979372U CN 217979372 U CN217979372 U CN 217979372U CN 202221864957 U CN202221864957 U CN 202221864957U CN 217979372 U CN217979372 U CN 217979372U
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Abstract
The utility model relates to an enhanced vapor injection device and refrigerating system, enhanced vapor injection device include the organism, reach the controller of being connected with the organism electricity: the controller comprises a control circuit and a detection circuit which are connected with the machine body, the detection circuit is suitable for detecting the state of a target end, and the control circuit controls the machine body to be opened or closed according to the detection result of the detection circuit; wherein the detection circuit comprises an input end; the detection module is suitable for detecting the running state of the target end; the overvoltage protection module is suitable for protecting the detection module; the output end is suitable for outputting the detection result. This application is through being equipped with control circuit and detection circuitry in the controller at the jet-propelled enthalpy-increasing device to make control circuit can control opening and close of whole jet-propelled enthalpy-increasing device according to the testing result in detection circuitry, with this state synchronization of target end and the jet-propelled enthalpy-increasing device that guarantees to be detected, prevent that the target end from not operating, refrigerant among the refrigerating system leads to the compressor to damage in against the current to the compressor.
Description
Technical Field
The utility model relates to an enhanced vapor injection device and refrigerating system.
Background
In the field of refrigeration technology, when the compressor is used for deep refrigeration, for example, at minus thirty degrees and below, in order to reduce the heating attenuation, a jet enthalpy increasing device is usually used to cooperate with the compressor.
When the air injection enthalpy-increasing device is matched with a compressor for use, the running state of the air injection enthalpy-increasing device is required to be synchronous with the compressor, if the state of the compressor and the air injection enthalpy-increasing device are not synchronously used, a refrigerant can flow back into the compressor, the compressor can be damaged due to long-term liquid carrying running, and the service life of the compressor is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can guarantee with synchronous air injection enthalpy gain device of compressor state and refrigerating system, avoid damaging the compressor.
In order to achieve the above purpose, the utility model provides a following technical scheme: an enhanced vapor injection device, comprising a body and a controller electrically connected with the body:
the controller comprises a control circuit and a detection circuit which are connected with the machine body, the detection circuit is suitable for detecting the state of a target end, and the control circuit controls the machine body to be opened or closed according to the detection result of the detection circuit;
wherein the detection circuit comprises:
an input end;
the detection module is suitable for detecting the running state of the target end;
the overvoltage protection module is connected between the input end and the detection module in series and is suitable for protecting the detection module;
and the output end is connected with the detection module and is suitable for outputting a detection result.
Optionally, in the above enhanced vapor injection device, the overvoltage protection module includes a first end and a second end, the first end is connected to the input end, and the second end is connected to the detection module.
Optionally, in the above enhanced vapor injection device, the overvoltage protection module includes a first diode, a second diode and a third diode, a cathode of the first diode is connected to an anode of the second diode, a cathode of the second diode is connected to an anode of the third diode, and a cathode of the third diode is connected to an anode of the first diode.
Optionally, in the above air injection enthalpy-increasing device, the detection module has two input ports and two output ports, the two input ports are respectively connected to the anode of the second diode and the cathode of the third diode, and the two output ports are respectively connected to the external power supply and the ground.
Optionally, in the enthalpy-increasing device, the detection circuit further includes a resistor disposed between one of the output ports and the external power source.
Optionally, in the above air injection enthalpy increasing device, the detection circuit further includes a resistor disposed between one of the output ports and ground.
Optionally, in the above air injection enthalpy increasing device, the detection module includes a photocoupler or a relay.
The utility model discloses still disclose a refrigerating system, include: the compressor and with the enhanced vapor injection device that the compressor is connected, the enhanced vapor injection device be any one of the aforesaid enhanced vapor injection device.
The beneficial effects of the utility model reside in that: this application is through being provided with control circuit and detection circuitry in the controller at jet-propelled enthalpy-increasing device, detection circuitry is suitable for the access target terminal that is detected, with the state of detection target terminal, thereby make control circuit can control opening and close of whole jet-propelled enthalpy-increasing device according to the testing result in detection circuitry, with this state synchronization of target terminal and jet-propelled enthalpy-increasing device that guarantees to be detected, prevent that the target terminal from not moving, refrigerant among the refrigerating system is to the compressor in the adverse current, lead to the compressor to damage.
The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a controller of the air injection enthalpy increasing device;
fig. 2 is a circuit block diagram of the air injection enthalpy increasing device of the utility model;
FIG. 3 is a schematic diagram of the detection circuit in the circuit block diagram of FIG. 2;
fig. 4 is a schematic diagram of another detection circuit in the circuit block diagram of fig. 2.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In this application, where the contrary is not intended, directional words such as "upper, lower, top and bottom" are generally used with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, vertical or gravitational direction; similarly, "inner and outer" refer to inner and outer relative to the profile of the components themselves for ease of understanding and description, but the above directional terms are not intended to limit the present application.
Referring to fig. 1, a preferred embodiment of the present invention is shown in which the enthalpy-increasing device is adapted to be used with a compressor 20, so that the compressor 20 can be adapted to a wider temperature range.
When the air injection enthalpy increasing device is used with the compressor 20, the operation state of the air injection enthalpy increasing device needs to be ensured to be synchronous with the compressor 20, if the state of the compressor 20 and the air injection enthalpy increasing device are not used synchronously, the refrigerant can flow back into the compressor, so that the compressor is damaged, for example, when the compressor 20 is in the operation state, the air injection enthalpy increasing device needs to be ensured to be also in the operation state; similarly, when the compressor 20 is in the non-operating state, it is necessary to ensure that the enhanced vapor injection device is also in the non-operating state; if the compressor 20 is not operating and the enhanced vapor injection device is still operating, refrigerant may flow back into the compressor 20, causing damage to the compressor 20 at the next start-up.
In order to solve the above problem and ensure the synchronization of the compressor 20 and the state of the enhanced vapor injection device, in the present embodiment, the enhanced vapor injection device includes a body, and a controller 10 electrically connected to the body, wherein the controller 10 can control the operation state of the body. Specifically, the controller 10 includes a control circuit 1 and a detection circuit 2. Wherein, control circuit 1 is connected with organism and detection circuit 2 respectively, and detection circuit 2 is suitable for the state of detection target end, and control circuit 1 can be based on the opening and close of detection result control organism in detection circuit 2. In this embodiment, the target end to be measured is a compressor 20.
Referring to fig. 2 and 3, the detection circuit 2 includes input terminals C1 and C2 connected to the compressor 20, a detection module 22, an overvoltage protection module 21, and output terminals S1 and S2, wherein the detection module 22 is adapted to detect an operation state of the compressor 20, the output terminals S1 and S2 are connected to the detection module 22 and adapted to output a detection result, and the overvoltage protection module 21 is adapted to protect the detection module 22 from an overvoltage breakdown.
Specifically, the overvoltage protection module 21 is connected in series between the input terminals C1 and C2 and the detection module 22. The overvoltage protection module 21 includes a first terminal and a second terminal, the first terminal is connected to the input terminals C1 and C2, and the second terminal is connected to the detection module 22. More specifically, the overvoltage protection module 21 includes a first diode 211, a second diode 212, and a third diode 213. The anodes of the cathodes of the first diode 211 are respectively connected to the input terminals C1 and C2, the cathode of the first diode 211 is connected to the anode of the second diode 212, the cathode of the second diode 212 is connected to the anode of the third diode 213, and the cathode of the third diode 213 is connected to the anode of the first diode 211. The purpose of this is that the first diode 211 can keep the voltage drop at 0.7v, and the second diode 212 is connected in series with the third diode 213 to keep the voltage drop at 1.4v, so as to protect the detection module 22. In the present embodiment, the withstand voltage values of the first diode 211, the second diode 212, and the third diode 213 are 1000v or more, and the current resistance is 1A or more.
The detection module 22 includes a photo coupler 221, and the photo coupler 221 includes a light emitting diode and a photo resistor. When the input terminals C1 and C2 have electric signals, the light emitting diode emits light, and the light sensitive resistor 25, as a light receiver, receives the light signal and generates a photocurrent, thereby implementing the electro-optic-electro conversion and achieving the purpose of detection. In other embodiments, the detection module 22 may also include a relay.
The detection module 22 has two input ports C1 and C2 and two output ports S1 and S2, the two input ports C1 and C2 are respectively connected to the anode of the second diode 212 and the cathode of the third diode 213, and the two output ports S1 and S2 are respectively connected to the external power source and the ground.
In one embodiment, the detection circuit 2 further comprises a resistor 25 disposed between one of the output ports S1, S2 and the external power source. At this time, when the input terminals C1 and C2 are connected in series to the compressor 20, the output terminals S1 and S2 are connected to the sampling circuit at the rear end thereof, and the compressor 20 is in the operating state, the detection circuit 2 detects that a current passes through, and a voltage signal between the output terminals S1 and S2 is 0; when the compressor 20 is in a non-operating state, the detection circuit 2 detects that no current passes through, and then a voltage signal between the output ends S1 and S2 is the power supply voltage VCC, and then the state of the control end of the compressor 20 is judged through the detection information by the sampling circuit at the rear end.
In another embodiment, referring to fig. 4, the resistor 25 is disposed between one of the output ports S1 and S2 and the ground. At this time, when the input terminals C1 and C2 are connected in series to the compressor 20, the output terminals S1 and S2 are connected to the sampling circuit at the rear end thereof, and the compressor 20 is in an operating state, the detection circuit 2 detects that a current passes through, and a voltage signal between the output terminals S1 and S2 is a power supply voltage VCC; when the compressor 20 is in a non-running state, the detection circuit 2 detects that no current passes through, and then the voltage signal between the output ends S1 and S2 is 0, and then the sampling circuit at the rear end judges the state of the control end of the compressor 20 according to the detection information, which can also achieve the above effects.
The utility model discloses still disclose a refrigerating system, this refrigerating system includes compressor 20 and jet-propelled enthalpy-increasing device, jet-propelled enthalpy-increasing device and compressor 20 synchronous operation to prevent that the refrigerant from entering to compressor 20 in to its damage. The enhanced vapor injection device is the above-described enhanced vapor injection device.
In summary, the following steps: by arranging the detection circuit 2 and the control circuit 1, the detection circuit 2 is suitable for detecting the running state of the compressor 20, and the controller 10 can control the opening and closing of the whole enhanced vapor injection device according to the result detected by the detection circuit 2, so that the compressor 20 and the enhanced vapor injection device run synchronously, the state synchronization of a detected target end (the compressor 20) and the state synchronization of the enhanced vapor injection device is ensured, and the condition that the refrigerant in a refrigeration system flows back to the compressor 20 to cause the damage of the compressor 20 when the target end does not run is prevented.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The enhanced vapor injection device is characterized by comprising a machine body and a controller electrically connected with the machine body, wherein the controller comprises:
the controller comprises a control circuit and a detection circuit which are connected with the machine body, the detection circuit is suitable for detecting the state of a target end, and the control circuit controls the opening and closing of the machine body according to the detection result of the detection circuit;
wherein the detection circuit comprises:
an input end;
the detection module is suitable for detecting the running state of the target end;
the overvoltage protection module is connected between the input end and the detection module in series and is suitable for protecting the detection module;
and the output end is connected with the detection module and is suitable for outputting a detection result.
2. The enhanced vapor injection apparatus of claim 1, wherein the overvoltage protection module comprises a first end and a second end, the first end is connected to the input end, and the second end is connected to the detection module.
3. The enhanced vapor injection device of claim 2, wherein the overvoltage protection module comprises a first diode, a second diode, and a third diode, a cathode of the first diode being connected to an anode of the second diode, a cathode of the second diode being connected to an anode of the third diode, and a cathode of the third diode being connected to an anode of the first diode.
4. The air injection enthalpy increasing device according to claim 3, wherein the detection module has two input ports and two output ports, the two input ports are respectively connected with the anode of the second diode and the cathode of the third diode, and the two output ports are respectively connected with an external power supply and a ground.
5. The enthalpy-adding jet device of claim 4, wherein the detection circuit further comprises a resistor disposed between one of the output ports and the external power source.
6. The air jet enthalpy gain device according to claim 4, wherein the detection circuit further comprises a resistor disposed between one of the output ports and ground.
7. The air injection enthalpy increasing device according to claim 4, wherein the detection module comprises an opto-coupler or a relay.
8. A refrigeration system, comprising: the compressor and be connected with the jet enthalpy-increasing device of compressor, the jet enthalpy-increasing device is according to any one of claims 1-7 jet enthalpy-increasing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221864957.7U CN217979372U (en) | 2022-07-20 | 2022-07-20 | Enhanced vapor injection device and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221864957.7U CN217979372U (en) | 2022-07-20 | 2022-07-20 | Enhanced vapor injection device and refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217979372U true CN217979372U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221864957.7U Active CN217979372U (en) | 2022-07-20 | 2022-07-20 | Enhanced vapor injection device and refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217979372U (en) |
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2022
- 2022-07-20 CN CN202221864957.7U patent/CN217979372U/en active Active
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