Electric throttle valve for hot fluorine defrosting unit

Abstract

The utility model discloses an electric throttle valve for a hot fluorine defrosting unit, which comprises a valve body, the top of the valve body is provided with a control motor, two ends of the valve body are respectively provided with an inlet end and an outlet end, the outer wall of the inlet end is communicated with an input pipe joint, the outer wall of the inlet end is provided with an annular bulge, and the outer wall of the outlet end is communicated with an outlet pipe joint. The input pipe connector is located on the annular protrusion, and a spring is embedded in the annular protrusion. When the input pipe connector is not connected with an external heat input pipeline, the spring can push the fixing ring to move to the end of the input pipe connector, and the rubber dustproof piece can prevent external dust from entering the input pipe connector. The fixing ring is pushed to drive the spring and the telescopic sleeve to contract, the rubber dustproof piece is opened, an end opening of the input pipe connector is reserved, and connection with an external heat input pipeline is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electric throttle valve technology, specifically to an electric throttle valve for a hot-air defrosting unit. Background Technology

[0002] The electric throttle valve is a key control component in a hot-flecked refrigerant defrosting unit. It is mainly used to regulate the refrigerant flow and achieve efficient system operation. The throttle valve motor precisely adjusts the valve opening through an electronic control signal. The electric throttle valve can switch between defrosting and normal operation modes to ensure heat exchange efficiency and system stability. It is suitable for hot-flecked refrigerant defrosting systems under various ambient temperatures, effectively improving the unit's energy efficiency and defrosting effect.

[0003] However, the pipe interface structure of the electric throttle valve used in some current hot-fluid defrosting units is relatively simple. When the input connector is not connected to the heat input pipe, the end of the interface is exposed and is easily invaded by dust, particles and other impurities, which can lead to internal channel contamination or blockage, affecting the normal input of the heat transfer medium, and thus reducing the defrosting efficiency of the system and the reliability of the equipment. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, one objective of this utility model is to provide an electric throttle valve for a hot-fluid defrosting unit. This electric throttle valve for a hot-fluid defrosting unit can use a fixing ring and a rubber dustproof sheet to seal the end of the input pipe joint, effectively preventing dust from entering the input pipe joint.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric throttle valve for a hot-air defrosting unit, comprising a valve body, a control motor mounted on the top of the valve body, an inlet end and an outlet end respectively provided at both ends of the valve body, an input pipe connector connected to the outer wall of the inlet end, an annular protrusion provided on the outer wall of the inlet end, the input pipe connector located on the annular protrusion, a spring embedded inside the annular protrusion, a fixing ring fixedly connected to one end of the spring, a plurality of rubber dustproof sheets distributed circumferentially on the inner wall of the fixing ring, and a telescopic sleeve fitted on the outside of the spring.

[0007] Preferably, a limit ring is fixedly connected to the inner wall of the input pipe connector.

[0008] Preferably, several circumferentially distributed rubber dustproof sheets are arranged in a star-shaped pattern.

[0009] Preferably, the telescopic sleeve is a corrugated telescopic tube.

[0010] Preferably, the control motor is externally fitted with a sealed housing.

[0011] Preferably, the extension length of the telescopic sleeve is greater than the length of the input pipe connector.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the spring can push the fixing ring and the rubber dustproof sheet to seal the end of the input pipe joint, which can prevent external dust from entering the input pipe joint. When the input pipe joint is connected to the external heat input pipeline, the fixing ring is pushed to compress the spring and the telescopic sleeve, and the dustproof sheet bends to expose the input pipe joint, which facilitates the connection. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the electric throttle valve for the hot fluorine defrosting unit according to an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the telescopic sleeve and annular protrusion in the electric throttle valve of the hot fluorine defrosting unit according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic cross-sectional view of the rubber dustproof sheet in the closed state of the electric throttle valve of the hot fluorine defrosting unit according to an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the rubber dustproof sheet in the electric throttle valve of the hot fluorine defrosting unit in an embodiment of the present invention, with the sheet in the open state.

[0017] In the diagram: 1. Valve body; 2. Inlet end; 3. Outlet end; 4. Control motor; 5. Sealing shell; 6. Telescopic sleeve; 7. Rubber dustproof sheet; 8. Annular protrusion; 9. Fixing ring; 10. Input pipe connector; 11. Spring; 12. Limiting ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 An embodiment of this utility model provides an electric throttle valve for a hot-fluid defrosting unit, comprising: valve body 1.

[0020] Among them, such as Figure 1 and Figure 2As shown, a control motor 4 is installed on the top of the valve body 1. The valve body 1 has an inlet end 2 and an outlet end 3 at both ends. The outer wall of the inlet end 2 is connected to an input pipe connector 10. In use, the valve stem and valve core inside the valve body 1 are driven to rotate by the control motor 4 to adjust the gas flow rate. The heat transfer medium is input through the heat input pipeline through the input pipe connector 10 and output through the outlet end 3 to realize the pipeline hot fluorine defrosting function.

[0021] Furthermore, to prevent the control motor 4 from being directly exposed to the external environment, a sealed housing 5 is installed on the outside of the control motor 4.

[0022] In this embodiment, as Figures 1-4 As shown, the outer wall of the inlet end 2 is provided with an annular protrusion 8, the input pipe connector 10 is located on the annular protrusion 8, a spring 11 is embedded inside the annular protrusion 8, one end of the spring 11 is fixedly connected to a fixing ring 9, the inner wall of the fixing ring 9 is provided with several rubber dustproof sheets 7 distributed in a circumferential manner, and the outer side of the spring 11 is provided with a telescopic sleeve 6.

[0023] In use, the several rubber dustproof sheets 7 distributed circumferentially on the inner wall of the fixing ring 9 can effectively prevent dust from entering when the ring is closed. When the input pipe connector 10 is not connected to the external heat input pipe, the spring 11 can push the fixing ring 9 to the end of the input pipe connector 10, and the rubber dustproof sheets 7 can prevent external dust from entering the input pipe connector 10. When the input pipe connector 10 is connected to the external heat input pipe, the fixing ring 9 is pushed to cause the spring 11 and the telescopic sleeve 6 to retract, and the rubber dustproof sheets 7 open, so that the opening at the end of the input pipe connector 10 is retained, which facilitates connection to the external heat input pipe.

[0024] It should be noted that, referring to Figure 2 Several circularly distributed rubber dustproof sheets 7 are arranged in a star shape, and the star-shaped rubber dustproof sheets 7 can open inward or outward when subjected to pressure.

[0025] Among them, a limiting ring 12 is fixedly connected to the inner wall of the input pipe joint 10. The limiting ring 12 can limit the connection depth of the external heat input pipe when the input pipe joint 10 is connected to the external heat input pipe.

[0026] like Figures 2-4 As shown, the telescopic sleeve 6 is a corrugated telescopic tube, and the extension length of the telescopic sleeve 6 is greater than the length of the input pipe joint 10. The telescopic sleeve 6 outside the spring 11 protects the spring 11 from damage by external force during extension and retraction, and utilizes the corrugated telescopic characteristics to extend and retract with the spring 11. The overall structure ensures that the throttle valve operates stably and reliably.

[0027] Based on the above technical solution, the working steps of this solution are summarized as follows: When in use, the gas flow rate is adjusted by controlling the rotation of the valve stem and valve core inside the valve body 1 by controlling the motor 4, and the heat transfer medium is input through the heat input pipeline through the input pipe joint 10 and output through the outlet end 3 to realize the pipeline hot fluorine defrosting function.

[0028] The annular protrusion 8 on the outer wall of the inlet end 2 is fitted with a spring 11. The end of the spring 11 is provided with a fixing ring 9. Several rubber dustproof sheets 7 distributed circumferentially on the inner wall of the fixing ring 9 can effectively block dust from entering when the inlet pipe joint 10 is not connected to the external heat input pipe. When the inlet pipe joint 10 is not connected to the external heat input pipe, the spring 11 can push the fixing ring 9 to move to the end of the inlet pipe joint 10. The rubber dustproof sheets 7 can block external dust from entering the inlet pipe joint 10. When the inlet pipe joint 10 is connected to the external heat input pipe, the fixing ring 9 is pushed to drive the spring 11 and the telescopic sleeve 6 to retract, and the rubber dustproof sheets 7 open, so that the opening at the end of the inlet pipe joint 10 is retained, which is convenient for connection to the external heat input pipe. The telescopic sleeve 6 outside the spring 11 protects the spring 11 from damage by external force during extension and contraction. The overall structure ensures that the throttle valve operates stably and reliably.

[0029] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric throttle valve for a hot-air defrosting unit, comprising a valve body (1), wherein a control motor (4) is mounted on the top of the valve body (1), and an inlet end (2) and an outlet end (3) are respectively provided at both ends of the valve body (1), characterized in that: The outer wall of the inlet end (2) is connected to an input pipe connector (10). The outer wall of the inlet end (2) is provided with an annular protrusion (8). The input pipe connector (10) is located on the annular protrusion (8). A spring (11) is embedded inside the annular protrusion (8). One end of the spring (11) is fixedly connected to a fixing ring (9). The inner wall of the fixing ring (9) is provided with several rubber dustproof sheets (7) arranged in a circular pattern. A telescopic sleeve (6) is provided on the outside of the spring (11).

2. The electric throttle valve for a hot-fluid defrosting unit according to claim 1, characterized in that: A limit ring (12) is fixedly connected to the inner wall of the input pipe connector (10).

3. The electric throttle valve for a hot-air defrosting unit according to claim 1, characterized in that: Several circularly distributed rubber dustproof sheets (7) are arranged in a cross shape.

4. The electric throttle valve for a hot-air defrosting unit according to claim 1, characterized in that: The telescopic sleeve (6) is a corrugated telescopic tube.

5. The electric throttle valve for a hot-fluid defrosting unit according to claim 1, characterized in that: The control motor (4) is externally fitted with a sealed housing (5).

6. The electric throttle valve for a hot-fluid defrosting unit according to claim 1, characterized in that: The extension length of the telescopic sleeve (6) is greater than the length of the input pipe connector (10).

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