Frequency converter cooling system integrated device

Abstract

The frequency converter cooling system integration device comprises a frequency converter body and a cooling integration device, the cooling integration device is integrated on the frequency converter body, the cooling integration device comprises a cooling pipeline system, a first connecting valve, a second connecting valve, a cold plate and a cooling device, the cold plate and the cooling device are connected with the cooling pipeline system, and the first connecting valve is connected with the second connecting valve. The cooling integrated device introduces a cooling medium through the first connecting valve and discharges the cooling medium through the second connecting valve after the cooling medium is subjected to heat exchange through the cold plate and the cooling device. According to the integrated device of the frequency converter cooling system, only one inlet and one outlet connecting valve is arranged outside the integrated device of the frequency converter cooling system, so that the connecting mode is simplified, the assembly and disassembly are convenient, and the maintainability is high; the cooling system integrated device is separated from the frequency converter body without influencing the protection level of the frequency converter.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to an integrated device for a frequency converter cooling system. Background Art

[0002] Frequency converters consume a certain amount of power during operation, inevitably generating heat. Without proper cooling, the frequency converter will not function properly and its lifespan will be shortened. Refrigerant cooling, due to its high cooling efficiency and simple structure, is becoming increasingly popular. Frequency converter cooling systems are often installed as separate components behind the frequency converter, making the cooling system complex and installation complicated, resulting in poor maintainability and aesthetically pleasing. Furthermore, the cooling system is susceptible to water and dust accumulation, compromising reliable operation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes an inverter cooling system integration device.

[0004] The inverter cooling system integration device of the present invention includes an inverter body and a cooling integration device, wherein the cooling integration device is integrated on the inverter body, wherein the cooling integration device includes a cooling pipeline system, a first connecting valve, a second connecting valve, a cold plate connected to the cooling pipeline system, and a cooling device, wherein the cooling integration device introduces a cooling medium through the first connecting valve, and after the cooling medium passes through the cold plate and the cooling device for heat exchange, the cooling medium is discharged through the second connecting valve.

[0005] In one embodiment, the cooling pipeline system includes a liquid distributor and multiple pipelines connected to the liquid distributor. The cooling medium is divided into multiple branches through the liquid distributor. After the multiple branches pass through the cold plate and the cooling device for heat exchange, they are re-merged into one path and flow out from the second connecting valve.

[0006] In one embodiment, at least the first cooling branch flows through the first cold plate, the second cooling branch flows through the second cold plate, and the third cooling branch flows through the temperature reduction device.

[0007] In one embodiment, the cooling pipe system is provided with a first Y-type tee and a second Y-type tee to realize the confluence of the first cooling branch, the second cooling branch and the third cooling branch, wherein the first Y-type tee is connected to the second Y-type tee, the first cooling branch flows through the first Y-type tee, and the second cooling branch and the third cooling branch flow through the second Y-type tee respectively.

[0008] In one embodiment, the cooling integrated device also includes a third connecting valve, and the first cooling branch, the second cooling branch and the third cooling branch are respectively provided with a third connecting valve, so that the first cold plate, the second cold plate and the cooling device are respectively connected and disconnected with the cooling pipeline system through the third connecting valve.

[0009] In one embodiment, the pipes of the cooling pipe system are corrugated hoses.

[0010] In one embodiment, the first cooling branch and the second cooling branch are respectively provided with cooling regulating valves for adjusting the flow rate and back pressure of the pipelines.

[0011] In one embodiment, a solenoid valve is provided on the third cooling branch to switch the cooling medium on and off to achieve temperature regulation.

[0012] In one embodiment, the cooling integrated device further comprises a backpack formed as a closed cavity, the cooling pipeline system is arranged inside the backpack, and the backpack is fixedly connected to the inverter body.

[0013] In one embodiment, the backpack includes a frame fixed to the inverter body and a cover plate closing the frame, wherein the cover plate is composed of a plurality of detachable cover plates.

[0014] Compared with the existing technology, the inverter cooling system integrated device of the utility model only leaves one inlet and one outlet connection valve to the outside, which simplifies the connection method, is convenient for disassembly and assembly, and has high maintainability; the cooling system integrated device is separated from the inverter body and does not affect the protection level of the inverter.

[0015] The above technical features can be combined in various technically feasible ways to produce new implementation plans, as long as the purpose of the present invention can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in more detail below based on non-limiting embodiments and with reference to the accompanying drawings, wherein:

[0017] Figure 1 Shows a schematic structural diagram of the inverter cooling system integration device according to the utility model;

[0018] Figure 2 Shows Figure 1 The schematic diagram of the structure of the cooling integrated device of the inverter cooling system integrated device shown;

[0019] Figure 3-Figure 4 Shows Figure 2 The schematic diagram of the cooling pipe system structure of the cooling integrated device shown;

[0020] Figure 5 Shows Figure 1 The schematic diagram of the structure of the backpack of the inverter cooling system integrated device is shown.

[0021] In the drawings, like components are designated by like reference numerals, but the drawings are not necessarily drawn to scale.

[0022] Wherein, the accompanying drawings are marked as follows:

[0023] 1. Inverter body; 2. Cooling integrated device; 21. Cooling piping system; 211. Manifold; 212. First cooling regulating valve; 213. Solenoid valve; 214. First Y-type tee; 215. Second Y-type tee; 216. Copper tube; 217. Corrugated hose; 218. Inlet copper tube assembly; 219. Outlet copper tube assembly; 2110. First bellows connector; 2111. Second bellows connector; 2112. Second cooling regulating valve; 22. First connecting valve; 23. Second connecting valve; 24. Backpack; 241. Frame; 242. Right upper cover; 243. Left upper cover; 244. Left middle cover; 245. Left lower cover; 246. Right lower cover; 25. First cold plate; 26. Second cold plate; 27. Cooling device; 28. Third connecting valve. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, as long as no conflict arises, the various embodiments and features of the present invention can be combined with each other, and the resulting technical solutions are all within the scope of protection of the present invention.

[0025] Parts not described in the present invention can be realized by adopting or drawing on existing technologies.

[0026] like Figure 1 As shown, the inverter cooling system integrated device of the present invention includes an inverter body 1 and a cooling integrated device 2, and the cooling integrated device 2 is integrated on the inverter body 1, wherein the cooling integrated device 2 includes a cooling pipe system 21, a first connecting valve 22, a second connecting valve 23, a cold plate and a cooling device 27 connected to the cooling pipe system 21, wherein the cooling integrated device 2 introduces the cooling medium through the first connecting valve 22, and after the cooling medium passes through the cold plate and the cooling device for heat exchange, the cooling medium is discharged through the second connecting valve 23.

[0027] The inverter cooling system integrated device of the utility model only leaves one inlet and one outlet connection valve to the outside, which simplifies the connection mode, is convenient for disassembly and assembly, and has high maintainability.

[0028] like Figure 2As shown, in an optional embodiment, the cooling pipeline system includes a liquid collector 211 and multiple pipelines connected to the liquid collector 211. The cooling medium is divided into multiple branches through the liquid collector 211. After the multiple branches pass through the cold plate and the cooling device 27 for heat exchange, they are re-merged into one path and flow out from the second connecting valve 23.

[0029] By using a liquid distributor to divide the liquid, the cooling medium is evenly distributed to various parts of the inverter, thereby achieving uniform heat dissipation of the inverter.

[0030] In an optional embodiment, at least the first cooling branch flows through the first cold plate 25 , the second cooling branch flows through the second cold plate 26 , and the third cooling branch flows through the temperature reduction device 27 .

[0031] like Figure 2 As shown, the first cold plate 25 is located at the upper left side, the second cold plate 26 is located at the lower middle part, and the cooling device 27 is located at the lower right side. After flowing through the first cold plate 25, the second cold plate 26 and the cooling device 27 respectively, the cooling medium converges above the headquarters of the cooling pipe system and flows out.

[0032] Continue to refer Figure 2 ,like Figure 2 As shown, the cooling integrated device also includes a third connecting valve 28. The third connecting valve 28 is respectively provided on the first cooling branch, the second cooling branch and the third cooling branch. The third connecting valve 28 has a switching function, so that the first cold plate 25, the second cold plate 26 and the cooling device 27 are respectively connected and disconnected with the cooling pipe system 21 through the third connecting valve 28.

[0033] Specifically, taking the first cooling branch as an example, the cooling medium is divided into three paths through the liquid collector 211. After the cooling medium flowing through the first cooling branch reaches the first cooling medium, it passes through the cooling medium located at Figure 2 The third connecting valve below the flow is directed to the first cold plate 25, and after passing through the first cold plate 25 for heat exchange, it is further passed through the Figure 2 The third connecting valve 28 shown at the top flows out of the first cold plate 25. When the third connecting valve 28 is closed, the cooling medium in the first cooling branch no longer flows, and the first cooling branch can be disassembled and maintained, which is flexible.

[0034] The implementation of switching on and off the second cooling branch and the third cooling branch is similar to that of the first cooling branch, and will not be repeated here.

[0035] In an optional embodiment, the cooling pipe system is provided with a first Y-type tee 214 and a second Y-type tee 215 to realize the confluence of the first cooling branch, the second cooling branch and the third cooling branch, wherein the first Y-type tee 214 is connected to the second Y-type tee 215, the first cooling branch flows through the first Y-type tee 214, the second cooling branch and the third cooling branch flow through the second Y-type tee 215 respectively, the second cooling branch and the third cooling branch converge into one path at the second Y-type tee 215, and after confluence, flow through the second Y-type tee 215, and converge with the first cooling branch into one path at the first Y-type tee, and the cooling medium is discharged from the cooling integrated device through the second connecting valve 23.

[0036] Compared with the use of a liquid distributor, the use of a Y-type tee to achieve the confluence of three cooling branches has the advantages of simple structure, easy processing, low cost and light weight.

[0037] Further, if Figure 3 As shown, the first Y-shaped tee 214 and the second Y-shaped tee 215 are arranged horizontally, wherein the first Y-shaped tee 214 and the second Y-shaped tee 215 are connected end to end.

[0038] In an optional embodiment, the cooling pipe system is a corrugated hose 217. The corrugated hose 217 is easy to bend and has low rigidity, which can eliminate stress between pipes and allow for small adjustments to the interface, thus reducing installation requirements and improving the factory qualification rate.

[0039] like Figure 2 and Figure 3 As shown, in an optional embodiment, the first cooling branch and the second cooling branch are respectively provided with a first cooling regulating valve 212 and a second cooling regulating valve 2112 to adjust the flow rate and back pressure of the pipelines of the first cooling branch and the second cooling branch. A solenoid valve 213 is provided on the third cooling branch to turn on and off the cooling medium to achieve temperature control.

[0040] like Figure 3 As shown, the first cooling branch is provided with a diverter pipe connected to the first Y-type tee 214 at the point where it flows to the first Y-type tee 214, the second cooling regulating valve 2112 is provided on the diverter pipe, and the first cooling regulating valve 212 is provided on the main pipe connected to the first Y-type tee 214.

[0041] Similar to the first cooling branch, the first cooling regulating valve 212 on the second cooling branch is set on the main pipe connected to the second Y-type tee 215, and the second cooling regulating valve 2112 is set on the branch pipe connected to the second Y-type tee 215.

[0042] In an optional embodiment, the cooling integrated device also includes a backpack 24 formed as a closed cavity, which is fixedly connected to the inverter body 1 and accommodates the cooling pipe system 2 inside the backpack 24 to protect the cooling pipe system 21, isolate it from the outside world, prevent water vapor or dust from entering the cooling pipe system 21, thereby improving the operating reliability of the device and extending its service life.

[0043] The cooling pipe system 21 is fixed on the back plate of the inverter body 1 and is independently separated from the inverter body 1 without affecting the protection level of the inverter body 1.

[0044] In an optional embodiment, the backpack 24 includes a frame 241 fixed on the inverter body 1 and a cover plate that closes the frame 241, and the cover plate is composed of a plurality of detachable cover plates.

[0045] like Figure 5 As shown, backpack 24 includes multiple removable covers, such as a right upper cover 242, a left upper cover 243, a left middle cover 244, a left lower cover 245, and a right lower cover 246. Each removable cover is individually and removably connected to frame 241. If a fault occurs in a cooling pipe system 2 located in a specific area, the cover in that area can be removed individually, avoiding the need to disassemble the entire backpack 24, facilitating targeted maintenance.

[0046] Further, if Figure 1 and Figure 2 As shown, the first connecting valve 22 and the second connecting valve 23 are located outside the backpack, thereby facilitating the inflow and discharge of the cooling medium.

[0047] Further, if Figure 2 and Figure 3 As shown, the cooling pipe system of the device adopts a bellows, an inlet copper pipe assembly 218 is used at the first connecting valve, an outlet copper pipe assembly 219 is used at the second connecting valve, and the outlet of the first cooling branch is connected to the third connecting valve 28 by a first bellows connector 2110 and a second bellows connector 2111 respectively. By splitting the cooling pipe system 21 into several components, the assembly difficulty is reduced, the assembly efficiency is improved, transportation is convenient, and transportation costs are reduced.

[0048] Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meanings understood by persons of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar expressions used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish between different components. "Include" or "comprises" and similar expressions mean that the element or object preceding the word encompasses the elements or objects listed following the word, and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar expressions are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. In the description of this disclosure, the orientations or positional relationships indicated by terms are based on those shown in the accompanying drawings and are intended solely to facilitate the description of this disclosure and simplify the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. Therefore, these expressions should not be construed as limitations on this disclosure.

[0049] At this point, those skilled in the art will recognize that while the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An integrated device for a frequency converter cooling system, characterized in that: It includes an inverter body and a cooling integrated device, which is integrated on the inverter body. The cooling integrated device includes a cooling pipe system, a first connecting valve, a second connecting valve, a cold plate connected to the cooling pipe system, and a cooling device. The cooling integrated device introduces a cooling medium through the first connecting valve, and after the cooling medium passes through the cold plate and the cooling device for heat exchange, the cooling medium is discharged through the second connecting valve.

2. The inverter cooling system integrated device according to claim 1, characterized in that: The cooling pipeline system includes a manifold and multiple pipelines connected to the manifold. The cooling medium is divided into multiple branches through the manifold. After the multiple branches pass through the cold plate and the cooling device for heat exchange, they are re-merged into one path and flow out from the second connecting valve.

3. The inverter cooling system integrated device according to claim 2, characterized in that: At least the first cooling branch flows through the first cold plate, the second cooling branch flows through the second cold plate, and the third cooling branch flows through the temperature reduction device.

4. The inverter cooling system integrated device according to claim 3, characterized in that: The cooling pipe system is provided with a first Y-shaped tee and a second Y-shaped tee to realize the confluence of the first cooling branch, the second cooling branch and the third cooling branch, wherein the first Y-shaped tee is connected to the second Y-shaped tee, the first cooling branch flows through the first Y-shaped tee, and the second cooling branch and the third cooling branch flow through the second Y-shaped tee respectively.

5. The inverter cooling system integrated device according to claim 3 or 4, characterized in that: The cooling integrated device also includes a third connecting valve, and the first cooling branch, the second cooling branch and the third cooling branch are respectively provided with a third connecting valve, so that the first cold plate, the second cold plate and the cooling device are respectively connected and disconnected with the cooling pipeline system through the third connecting valve.

6. The inverter cooling system integrated device according to claim 3, characterized in that: The first cooling branch and the second cooling branch are respectively provided with cooling regulating valves for adjusting the flow rate and back pressure of the pipelines.

7. The inverter cooling system integrated device according to claim 6, characterized in that: The third cooling branch is provided with a solenoid valve for switching the cooling medium on and off.

8. The inverter cooling system integrated device according to claim 1, characterized in that: The pipeline of the cooling pipeline system is a corrugated hose.

9. The inverter cooling system integrated device according to claim 1, characterized in that: The cooling integrated device further comprises a backpack formed as a closed cavity, the cooling pipeline system is arranged inside the backpack, and the backpack is fixedly connected to the inverter body.

10. The inverter cooling system integrated device according to claim 9, characterized in that: The backpack includes a frame fixed on the inverter body and a cover plate closing the frame, and the cover plate is composed of a plurality of detachable cover plates.

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