Dispenser

Abstract

The utility model provides a distributor which comprises a distributor body, the distributor body at least comprises a liquid inlet part, a liquid separation part and a liquid outlet part, the liquid inlet part is provided with a liquid inlet channel, and the distributor body is integrally formed; a throttling part and an upper transition part connected with the throttling part and the liquid inlet part are arranged between the liquid inlet part and the liquid separation part; a lower transition part is arranged between the throttling part and the liquid separation part, a throttling channel is formed in the throttling part, and the diameter of the throttling channel is smaller than that of the liquid inlet channel; the interiors of the upper transition part and the lower transition part are of cavity structures, the liquid separation part comprises a cylindrical cavity, and a sprue spreader is arranged in the cylindrical cavity; the liquid outlet part is provided with a plurality of liquid outlets; the throttling part, the upper transition part and the lower transition part are formed through a rolling process, and the wall thickness of the throttling part is larger than that of the cylindrical cavity; the throttling part is prevented from being bent by increasing the wall thickness of the throttling part.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, specifically to a distributor for distributing refrigeration media. Background Technology

[0002] The distributor is a crucial component in an air conditioning system, primarily installed between the throttling device and the evaporator. It distributes the refrigerant flowing from the throttling device evenly and in equal amounts to the various branch flow paths of the evaporator. Currently, many distributors with different structures are available on the market. CN202322218866.7 represents a typical distributor in the prior art, comprising at least a distributor body. The distributor body includes at least a liquid inlet section, a liquid distribution section, and a liquid outlet section. The liquid inlet section has an inlet channel, and the distributor body is integrally formed. A throttling section and a transition section connecting the throttling section and the liquid inlet section are provided between the liquid inlet section and the liquid distribution section. The throttling section contains a throttling channel with a diameter smaller than the diameter of the liquid inlet channel. The transition section has a hollow structure, and the liquid distribution section contains a flow-dividing cone. The liquid outlet section has several liquid outlets. However, when welding the pipe to the liquid inlet section, the throttling section's thin wall makes it prone to bending, affecting the flow rate. Utility Model Content

[0003] The dispenser designed in this invention can at least partially solve the above problems.

[0004] The purpose of this utility model is to provide a distributor, including a distributor body, the distributor body including at least a liquid inlet, a liquid distribution, and a liquid outlet, the liquid inlet having a liquid inlet channel, the distributor body being integrally formed; a throttling section and an upper transition section connecting the throttling section and the liquid inlet having a throttling section between the liquid inlet and the liquid distribution; a lower transition section having a throttling channel within the throttling section, the diameter of the throttling channel being smaller than the diameter of the liquid inlet channel; the upper transition section and the lower transition section having a cavity structure inside, the liquid distribution section including a cylindrical cavity with a flow-dividing cone inside the cylindrical cavity; the liquid outlet having a plurality of liquid outlets; characterized in that: the throttling section, the upper transition section, and the lower transition section are formed by a rolling process, the wall thickness of the throttling section being greater than the wall thickness of the cylindrical cavity.

[0005] Optionally, the wall thickness of the throttling section is 1.1 to 1.2 times the wall thickness of the cylindrical cavity.

[0006] Optionally, the wall thickness of the upper transition portion and / or the lower transition portion is greater than the wall thickness of the cylindrical cavity.

[0007] Optionally, the lower transition portion is divided into an upper section and a lower section along the axial direction, the upper section is close to the throttling portion, and the wall thickness of the upper section is greater than the wall thickness of the cylindrical cavity.

[0008] Optionally, the wall thickness of the throttling section is greater than the wall thickness of the lower section.

[0009] Optionally, the wall thickness of the liquid inlet is less than the wall thickness of the cylindrical cavity.

[0010] Optionally, the length of the throttling section is greater than or equal to the diameter of the throttling channel.

[0011] Optionally, the liquid outlet of the liquid outlet section is formed by extrusion molding.

[0012] Optionally, the wall thickness of the cylindrical cavity is 0.8 to 1.0 mm, and the wall thickness of the throttling section is 0.88 to 1.2 mm.

[0013] Optionally, the liquid inlet section is formed by a rolling process. Attached Figure Description

[0014] Figure 1 This is a perspective view of the dispenser according to an embodiment of the present invention.

[0015] Figure 2 This is a front view of the dispenser according to an embodiment of the present invention.

[0016] Figure 3 This is a cross-sectional view (AA) of the dispenser according to an embodiment of the present invention.

[0017] Number in the diagram:

[0018] 1. Liquid inlet section, 2. Upper transition section, 3. Throttling section, 4. Lower transition section, 5. Liquid distribution section, 51. Cylindrical cavity, 6. Liquid outlet section, 61. Liquid outlet hole, 62. Diverting cone. Detailed Implementation

[0019] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. In the drawings, for clarity, the thickness of regions and layers is exaggerated. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0020] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0021] The following example describes a dispenser of this utility model. This example is only a part of the embodiments of this utility model, but the protection scope of this utility model is not limited thereto. All other embodiments obtained by those skilled in the art without inventive effort should be covered within the protection scope of this utility model.

[0022] Please refer to the reference. Figures 1 to 3 According to an embodiment of this utility model, a distributor is provided, including a distributor body. The distributor body includes an inlet section 1, a distribution section 5, and an outlet section 6. The inlet section 1 is provided with an inlet channel, and the distributor body is integrally formed. A throttling section 3 and an upper transition section 2 connecting the throttling section 3 and the inlet section 1 are provided between the inlet section 1 and the distribution section 5. A lower transition section 4 is provided between the throttling section 3 and the distribution section 5. The throttling section 3 has a throttling channel, the diameter of which is smaller than the diameter of the inlet channel. The upper transition section 2 and the lower transition section 4 have a cavity structure inside. The distribution section 5 includes a cylindrical cavity 51, and a flow-dividing cone 62 is provided inside the cylindrical cavity 51. The outlet section 6 has a plurality of outlet ports 61. The throttling section, the upper transition section, and the lower transition section are formed by a rolling process, and the wall thickness of the throttling section is greater than the wall thickness of the cylindrical cavity. The inlet section is also formed by a rolling process, without using machining to remove material. The rolling process forms an inner cavity with a large inner opening and a small outer opening, simplifying the structure. Optionally, the wall thickness of the throttling section is 1.1 to 1.2 times the wall thickness of the cylindrical cavity. In this embodiment, the diameter (inner diameter) of the throttling channel is 4 mm, the wall thickness of the cylindrical cavity is 1.0 mm, and the wall thickness of the throttling section is 1.2 mm. Alternatively, the wall thickness of the cylindrical cavity is 0.8 to 1.0 mm, and the wall thickness of the throttling section is 0.88 to 1.2 mm. Because the wall thickness of the throttling section is increased, even if the diameter of the throttling section is relatively small, it still has sufficient rigidity to prevent bending. The length of the throttling section is 8 mm, which can also be equal to the diameter of the throttling channel.

[0023] In this embodiment, the wall thickness of the upper and lower transition portions is greater than the wall thickness of the cylindrical cavity. Optionally, the lower transition portion is evenly divided into an upper section and a lower section along the axial direction. The upper section is closer to the throttling section, and its wall thickness is greater than that of the cylindrical cavity. The lower section is closer to the cylindrical cavity, and its wall thickness is not less than that of the cylindrical cavity. The wall thickness of the throttling section is greater than that of the lower section, so that the smaller the outer diameter of the distributor body, the greater the wall thickness, preventing bending at the thin-walled, small-diameter section.

[0024] In this embodiment, the wall thickness of the liquid inlet is less than the wall thickness of the cylindrical cavity. When the external pipe is inserted and welded, the rigidity of the liquid inlet is improved by the insertion and welding of the external pipe, and there is no need to increase the thickness.

[0025] The dispenser of this utility model can be obtained through the following operation:

[0026] 1. Cut copper rods of a certain length on a cutting and blanking machine as initial blanks;

[0027] 2. The copper rod is cold-forged using a cold-forging die. The cold-forging die includes a base fixedly mounted on a workbench and a pressing die fixedly connected to a cold-forging head. A cold-forging cavity is provided on the upper surface of the base. The copper rod from step 1 is installed in the cold-forging cavity, and the cold-forging head drives the pressing die downward to complete the cold-forging of the copper rod. After cold-forging, the copper rod has a liquid outlet, a flow divider cone, several liquid outlets, and a cylindrical circumferential wall.

[0028] 3. The semi-finished product processed in step 2 is installed on a rolling compression machine for rolling processing to form the liquid inlet section, upper transition section, throttling section and lower transition section.

[0029] In this embodiment, the liquid outlet of the liquid outlet section is formed by extrusion molding, which reduces the machining process.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A distributor, comprising a distributor body, the distributor body including at least an inlet section, a dispensing section, and an outlet section, the inlet section having an inlet channel, the distributor body being integrally formed; a throttling section and an upper transition section connecting the throttling section and the inlet section being provided between the inlet section and the dispensing section; a lower transition section being provided between the throttling section and the dispensing section, the throttling section having a throttling channel within it, the diameter of the throttling channel being smaller than the diameter of the inlet channel; the upper transition section and the lower transition section having a cavity structure inside, the dispensing section including a cylindrical cavity, the cylindrical cavity having a flow-dividing cone within it; the outlet section having a plurality of outlet ports; characterized in that: The throttling section, upper transition section, and lower transition section are formed by a rolling process, and the wall thickness of the throttling section is greater than the wall thickness of the cylindrical cavity.

2. The dispenser according to claim 1, characterized in that: The wall thickness of the throttling section is 1.1 to 1.2 times the wall thickness of the cylindrical cavity.

3. The dispenser according to claim 1, characterized in that: The wall thickness of the upper transition section and / or the lower transition section is greater than the wall thickness of the cylindrical cavity.

4. The dispenser according to claim 1, characterized in that: The lower transition section is divided into an upper section and a lower section along the axial direction. The upper section is close to the throttling section, and the wall thickness of the upper section is greater than the wall thickness of the cylindrical cavity.

5. The dispenser according to claim 4, characterized in that: The wall thickness of the throttling section is greater than the wall thickness of the lower section.

6. The dispenser according to claim 1, characterized in that: The wall thickness of the liquid inlet section is less than the wall thickness of the cylindrical cavity.

7. The dispenser according to claim 1, characterized in that: The length of the throttling section is greater than or equal to the diameter of the throttling channel.

8. The dispenser according to claim 1, characterized in that: The liquid outlet of the liquid outlet section is formed by extrusion molding.

9. The dispenser according to claim 1, characterized in that: The wall thickness of the cylindrical cavity is 0.8 to 1.0 mm, and the wall thickness of the throttling section is 0.88 to 1.2 mm.

10. The dispenser according to claim 1, characterized in that: The liquid inlet section is formed by a rolling process.

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