Cooling device with bypass protection structure

Abstract

The utility model provides a cooling device with a bypass protection structure, which relates to the technical field of hydraulic oil or lubricating oil cooling equipment and comprises an inlet liquid collecting piece, a heat exchange module and an outlet liquid collecting piece. The heat exchange module comprises a plurality of cooling channel pieces, heat dissipation fins are arranged between the adjacent cooling channel pieces, and the cooling channel pieces are tightly connected with the heat dissipation fins. One end of the cooling channel piece is communicated with the inlet liquid collecting piece, and the other end of the cooling channel piece is communicated with the outlet liquid collecting piece; the bypass protection component comprises a first joint, a connecting pipe, a one-way valve and a second joint which are connected in sequence. The utility model has the beneficial effects that when the return oil impact of hydraulic oil is larger or the oil temperature of lubricating oil is lower and the resistance is larger, high pressure is formed in the inlet liquid collecting piece, and the hydraulic oil or the lubricating oil preferentially ejects the one-way valve and directly returns to the oil tank from the bypass protection component, so that the heat exchange module is protected, the structure is ingenious, and the cost is low. And the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil or lubricating oil cooling equipment, in particular to a cooling device with a bypass protection structure. Background Art

[0002] Existing hydraulic oil or lubricating oil cooling devices usually include a heat exchange module and a fan. The high-temperature hydraulic oil or lubricating oil flows into the heat exchange module. When the fan is started, airflow is formed in the heat exchange module. The airflow generated by the fan takes away the heat and cools the oil, and finally it is discharged and refluxed from the heat exchange module.

[0003] At present, many patents on such cooling devices have been published. For example, the technical content disclosed in the Chinese patent document (patent name: CN201920216325.1, patent name: a hydraulic oil or lubricating oil cooling device) is "including a heat exchange module, an air guide cover and a fan; the heat exchange module includes an inlet liquid collecting part, an outlet liquid collecting part, a cooling channel part, a fin, an upper reinforcing plate and a lower reinforcing plate; the inlet liquid collecting part is a round tube part made of extruded aluminum; the outlet liquid collecting part is also a round tube part made of extruded aluminum; the cooling channel part is a flat tube part made of extruded aluminum, and reinforcing ribs are formed inside the cooling channel part, and these reinforcing ribs are arranged along the longitudinal direction of the cooling channel part, dividing the interior of the cooling channel part into a number of sub-channels that are not connected to each other; between the cooling channel part and the inlet liquid collecting part, between the cooling channel part and the outlet liquid collecting part, and between the cooling channel part and the fin", high-temperature oil flows in from the inlet liquid collecting part, flows through the cooling channel part to dissipate heat to the fins, and the wind flow dissipates heat to the fins, and the high-temperature oil after heat dissipation is finally discharged from the outlet liquid collecting part and returned to use.

[0004] The above is a relatively traditional cooling device. The defect of this device is that when the hydraulic oil return oil impact is large or the temperature is low, and the viscosity of the lubricating oil is very high, the resistance of the hydraulic oil or lubricating oil passing through the cooling channel will be very large. Since the oil channel of the heat exchange module is made relatively tight, the impact force of the hydraulic oil return or the resistance of the lubricating oil is likely to be greater than the bursting pressure of the heat exchange module, resulting in rupture and oil leakage, causing damage to the heat exchange module. Based on this, it is necessary to develop a cooling device with a bypass protection structure to solve the above problems. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a cooling device with a bypass protection structure. When the oil temperature of the hydraulic oil or the lubricating oil is low and the resistance is large, high pressure is formed inside the inlet liquid collecting part. At this time, the hydraulic oil or the lubricating oil preferentially pushes open the one-way valve, allowing the hydraulic oil and the lubricating oil to directly return to the oil tank from the bypass protection component, thereby protecting the heat exchange module. The utility model has an ingenious structure and high safety.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] A cooling device with a bypass protection structure comprises an inlet liquid collecting member, a heat exchange module, and an outlet liquid collecting member; the heat exchange module comprises a plurality of cooling channel members, heat dissipation fins are arranged between adjacent cooling channel members, and the cooling channel members are closely connected to the heat dissipation fins; one end of the cooling channel member is connected to the inlet liquid collecting member, and the other end of the cooling channel member is connected to the outlet liquid collecting member;

[0008] It also includes a bypass protection component, which includes a first joint, a connecting pipe, a one-way valve and a second joint connected in sequence; the first joint is connected to the inlet of the inlet liquid collecting piece, and the second joint is connected to the outlet of the outlet liquid collecting piece.

[0009] Furthermore, the ends of both ends of the cooling channel member are correspondingly embedded and assembled in the inlet liquid collecting member and the outlet liquid collecting member, and the ends of both ends of the cooling channel member are sawn to form semicircular positions.

[0010] Furthermore, the cooling channel member is flat, and a plurality of reinforcing ribs are longitudinally arranged inside the cooling channel member, and sub-channels are formed between adjacent reinforcing ribs.

[0011] Furthermore, the inlet liquid collecting piece, the heat exchange module and the outlet liquid collecting piece are connected to a box body, a wind hood is arranged on the box body, and a fan is arranged in the wind hood.

[0012] Furthermore, the box body includes a fixing plate located at the bottom, and an elliptical mounting hole is opened on the fixing plate.

[0013] Furthermore, the inlet liquid collecting piece and the outlet liquid collecting piece have the same structure, both of which are cylindrical; the cross-sectional diameters of the inlet liquid collecting piece and the outlet liquid collecting piece are larger than the width dimension of the cooling channel piece.

[0014] Furthermore, the first joint and the second joint are both provided with external threads.

[0015] Furthermore, the inlet liquid collecting piece and the outlet liquid collecting piece are connected with a connecting piece, and a threaded hole is arranged on the connecting piece; a through hole is correspondingly arranged on the box body, and a bolt passes through the through hole and is connected to the threaded hole.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] When the temperature of the hydraulic oil or lubricating oil is low and the resistance is large, high pressure is formed inside the inlet liquid collecting part. At this time, the hydraulic oil or lubricating oil preferentially pushes open the one-way valve, allowing the hydraulic oil and lubricating oil to return directly to the oil tank from the bypass protection component, thereby protecting the heat exchange module. The structure is ingenious and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of a conventional cooling device, without bypass protection components, and the ends of the cooling channel components are flush;

[0020] Figure 2 The cooling device of the present application is a three-dimensional Figure 1 ;

[0021] Figure 3 The cooling device of the present application is a three-dimensional Figure 2 ;

[0022] Figure 4 It is an exploded diagram of the cooling device of the present application scheme;

[0023] Figure 5 It is a schematic diagram of a cutaway portion of an inlet liquid collecting member in the cooling device of the present application;

[0024] Figure 6 yes Figure 5 Enlarged view of circle A in center.

[0025] In the figure:

[0026] 1. Inlet liquid collection piece;

[0027] 2. heat exchange module; 201. cooling channel member; 2011. reinforcing rib; 2012. sub-channel; 202. heat dissipation fin;

[0028] 3. Outlet liquid collecting parts;

[0029] 4. Bypass protection component; 401. First joint; 402. Connecting pipe; 403. One-way valve; 404. Second joint; 405. External thread;

[0030] 5. Box body; 501. Fixing plate; 502. Oval mounting hole; 503. Through hole;

[0031] 6. Wind hood; 7. Fan;

[0032] 8. Connector; 801. Threaded hole;

[0033] 9. Bolts. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] like Figure 1 As shown, it is a schematic diagram of a conventional cooling device for hydraulic oil or lubricating oil. The defect of the cooling device is that there is no bypass protection component 4, and the end of the cooling channel member 201 is flush; the defect of this structure is that in actual use, the viscosity of the oil changes with the temperature. Generally, the lower the temperature, the greater the viscosity, the worse the fluidity of the oil, and it is particularly obvious for heavy-load oil, that is, the lower the temperature, the greater the resistance. Since the channel of the cooling channel member 201 is made relatively tight, as the temperature decreases, the resistance of the oil also becomes greater and greater, and it is very likely to be greater than the bursting pressure of the channel of the cooling channel member 201, resulting in rupture and oil leakage, which poses a great safety hazard; in addition, taking the oil inlet as an example, the oil is rushed in from the inlet liquid collecting member 1 from top to bottom, and the end structure of the cooling channel member 201 is flush, which will occupy too much of the cross section of the inlet liquid collecting member 1, seriously hindering the flow of oil; when the oil speed is fast, the impact also causes the product to leak easily. Based on this, the technical solution of the present application is to overcome the above-mentioned problems.

[0036] like Figures 2 to 6 As shown, a cooling device with a bypass protection structure includes an inlet liquid collecting member 1, a heat exchange module 2, and an outlet liquid collecting member 3; the heat exchange module 2 includes a plurality of cooling channel members 201, and heat dissipation fins 202 are arranged between adjacent cooling channel members 201, and the cooling channel members 201 are closely connected with the heat dissipation fins 202, so as to facilitate the heat of the cooling channel members 201 to be transferred to the heat dissipation fins 202; one end of the cooling channel member 201 is connected with the inlet liquid collecting member 1, and the other end of the cooling channel member 201 is connected with the outlet liquid collecting member 3; oil enters from the inlet liquid collecting member 1, flows into from one side of the cooling channel member 201, and then flows out from the other side of the cooling channel member 201 into the outlet liquid collecting member 3, and when the cooling channel member 201 flows through, the temperature of the oil will be transferred to the heat dissipation fins 202 for heat dissipation.

[0037] The cooling channel member 201 is flat, and a plurality of reinforcing ribs 2011 are longitudinally arranged inside the cooling channel member 201 . Subchannels 2012 are formed between adjacent reinforcing ribs 2011 . Oil flows laterally from the subchannels 2012 . The reinforcing ribs 2011 can enhance the pressure-bearing effect of the cooling channel member 201 .

[0038] The ends of both ends of the cooling channel component 201 are correspondingly embedded and assembled in the inlet liquid collecting component 1 and the outlet liquid collecting component 3. In actual production, the inlet liquid collecting component 1, the cooling channel component 201 and the outlet liquid collecting component 3, and the cooling channel component 201 and the heat dissipating fins 202 are all welded together by continuous brazing, which is highly efficient. The embedded assembly of the cooling channel component 201 helps to enhance the stability of the structure.

[0039] The inlet liquid collecting component 1 and the outlet liquid collecting component 3 have the same structure, both of which are cylindrical. The cylindrical design has good pressure resistance; and the cross-sectional diameter of the inlet liquid collecting component 1 and the outlet liquid collecting component 3 is larger than the width of the cooling channel component 201, which is conducive to the end of the cooling channel component 201 being fully embedded and assembled into the inlet liquid collecting component 1 and the outlet liquid collecting component 3.

[0040] An improvement of the present application is that, if Figure 6 As shown, the ends of both ends of the cooling channel member 201 are sawn to form semicircular positions. This structure does not affect the circulation of oil, reduces the impact force of the oil, and does not affect the strength of brazing. The structure is ingenious.

[0041] An improvement of the present application is that it also includes a bypass protection component 4, which includes a first connector 401, a connecting pipe 402, a one-way valve 403 and a second connector 404 connected in sequence; the first connector 401 is connected to the inlet of the inlet liquid collecting component 1, and the second connector 404 is connected to the outlet of the outlet liquid collecting component 3; the first connector 401 and the second connector 404 are three-way valves, and the first connector 401 and the second connector 404 are both provided with external threads 405, which are convenient for installation and connection with external pipe fittings. The working principle here is that when the lubrication system uses heavy-load oil and the ambient temperature is low, or the oil flows quickly and the impact force is large, the one-way valve 403 opens, and the opening pressure of the one-way valve 403 can be set to about 5~8 bar. Since the flow aperture of the bypass protection component 4 is larger than the channel of the cooling channel component 201, the heavy-load oil preferentially pushes open the one-way valve 403, allowing the lubricating oil to bypass the one-way valve 403 and return directly to the oil tank, that is, most of the lubricating oil flows in sequence through the first connector 401, the connecting pipe 402, the one-way valve 403 and the second connector 404, and does not enter the heat exchange module 2, thereby achieving protection for the heat exchange module 2.

[0042] The inlet liquid collecting part 1, the heat exchange module 2 and the outlet liquid collecting part 3 are connected to a box body 5, which has a protective effect. A wind hood 6 is arranged on the box body 5, and a fan 7 is arranged in the wind hood 6. The wind hood 6 and the fan 7 are both fixed on the box body 5. The wind flow generated by the fan 7 blows toward the heat dissipation fins 202 to increase the heat dissipation speed.

[0043] The box body 5 includes a fixing plate 501 located at the bottom, and an elliptical mounting hole 502 is opened on the fixing plate 501. By installing screws or bolts in the elliptical mounting hole 502, the cooling device can be stably fixed to the ground; the elliptical mounting hole 502 is conducive to fine-tuning the position and then locking.

[0044] The inlet liquid collecting piece 1 and the outlet liquid collecting piece 3 are connected and fixed by a connecting piece 8, and a threaded hole 801 is provided on the connecting piece 8; a through hole 503 is correspondingly provided on the box body 5, and the bolt 9 passes through the through hole 503 and is connected to the threaded hole 801, thereby locking the box body 5 and the inlet liquid collecting piece 1, the heat exchange module 2 and the outlet liquid collecting piece 3 into one.

[0045] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling device with a bypass protection structure, characterized in that: It includes an inlet liquid collecting piece, a heat exchange module, and an outlet liquid collecting piece; the heat exchange module includes a plurality of cooling channel pieces, and heat dissipation fins are arranged between adjacent cooling channel pieces, and the cooling channel pieces are closely connected with the heat dissipation fins; one end of the cooling channel piece is connected with the inlet liquid collecting piece, and the other end of the cooling channel piece is connected with the outlet liquid collecting piece; It also includes a bypass protection component, which includes a first joint, a connecting pipe, a one-way valve and a second joint connected in sequence; the first joint is connected to the inlet of the inlet liquid collecting piece, and the second joint is connected to the outlet of the outlet liquid collecting piece.

2. A cooling device with a bypass protection structure according to claim 1, characterized in that: The ends of both ends of the cooling channel member are correspondingly embedded and assembled in the inlet liquid collecting member and the outlet liquid collecting member, and the ends of both ends of the cooling channel member are sawn to form semicircular positions.

3. The cooling device with bypass protection structure according to claim 2, characterized in that: The cooling channel member is flat, and a plurality of reinforcing ribs are longitudinally arranged inside the cooling channel member, and sub-channels are formed between adjacent reinforcing ribs.

4. A cooling device with a bypass protection structure according to any one of claims 1 to 3, characterized in that: The inlet liquid collecting piece, the heat exchange module and the outlet liquid collecting piece are connected with a box body, a wind hood is arranged on the box body, and a fan is arranged in the wind hood.

5. The cooling device with bypass protection structure according to claim 4, characterized in that: The box body comprises a fixing plate located at the bottom, and an elliptical mounting hole is formed on the fixing plate.

6. The cooling device with bypass protection structure according to claim 3, characterized in that: The inlet liquid collecting piece and the outlet liquid collecting piece have the same structure, both of which are cylindrical; the cross-sectional diameters of the inlet liquid collecting piece and the outlet liquid collecting piece are larger than the width dimension of the cooling channel piece.

7. The cooling device with bypass protection structure according to claim 1, characterized in that: The first joint and the second joint are both provided with threads.

8. The cooling device with bypass protection structure according to claim 4, characterized in that: The inlet liquid collecting piece and the outlet liquid collecting piece are connected with a connecting piece, and a threaded hole is arranged on the connecting piece; a through hole is correspondingly arranged on the box body, and a bolt passes through the through hole and is connected to the threaded hole.

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