Cooling device for wind power converter

Abstract

The invention provides a wind power converter cooling device, and relates to the field of wind power converters, the wind power converter cooling device comprises a plurality of first laminated plates and a plurality of second laminated plates, the first laminated plates and the second laminated plates are the same in structure, the first laminated plates and the second laminated plates are arranged in a staggered mode, and first through grooves are formed in the two sides of the interior of each first laminated plate; second through grooves are formed in the two sides of the interior of the second laminated plate. According to the invention, through the interactive arrangement of the first laminated plates and the second laminated plates, cavities for liquid or refrigerating media to flow are formed between the adjacent first laminated plates and second laminated plates, so that the refrigerating liquid and the liquid to be subjected to heat exchange can be separated from each other through the first laminated plates and the second laminated plates; according to the wind power converter, the first laminated plate and the second laminated plate are arranged and can flow in respective spaces, heat is transferred to the surface of the first laminated plate or the second laminated plate, heat exchange treatment is achieved, the temperature in the wind power converter is in a relatively constant state, and therefore the stability of the wind power converter in the operation process is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of wind power converters, and more particularly, to a cooling device for a wind power converter. Background Art

[0002] A wind power converter usually consists of functional devices such as a circuit breaker, a contactor, a power unit module, a filtering module, etc., and is located inside the same cabinet. When the wind power converter is working, heat will be generated. Therefore, a cooling device is generally provided to dissipate heat inside the cabinet, so as to ensure the normal operation of the wind power converter.

[0003] The existing cooling device generally sucks external cold air from both sides of the cabinet through a fan and directly discharges it into the cabinet without any guiding device. As a result, the cold air generally directly contacts the heating elements closer to the fan, and the heat dissipated from these components will contact the heating elements in other positions along with the air flow. Its heat dissipation ability can no longer well meet the heat dissipation requirements of the wind power converter, which is likely to affect its normal heat dissipation effect and is not conducive to the normal use of the wind power converter. Therefore, we have made improvements and proposed a cooling device for a wind power converter. Summary of the Invention

[0004] The purpose of the present invention is to provide a cooling device for a wind power converter. By providing a first laminated plate and a second laminated plate, it solves the problem that the existing cooling device generally sucks external cold air from both sides of the cabinet through a fan and directly discharges it into the cabinet without any guiding device. As a result, the cold air generally directly contacts the heating elements closer to the fan, and the heat dissipated from these components will contact the heating elements in other positions along with the air flow. Its heat dissipation ability can no longer well meet the heat dissipation requirements of the wind power converter, which is likely to affect its normal heat dissipation effect and is not conducive to the normal use of the wind power converter.

[0005] In order to achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0006] A cooling device for a wind power converter includes a first laminated plate and a second laminated plate. The number of the first laminated plate and the second laminated plate is several and their structures are the same. Several of the first laminated plates and the second laminated plates are arranged alternately. Both sides inside the first laminated plate are provided with first through grooves, and both sides inside the second laminated plate are provided with second through grooves;

[0007] The first through grooves and the second through grooves on the first laminated plate and the second laminated plate are internally provided with drainage components and guiding components, and the positions of the drainage components and the guiding components on the first laminated plate and the second laminated plate are arranged alternately;

[0008] Among them, the drainage component includes a drainage ring. Two groups of parallel sealing grooves are formed on the inner side of the drainage ring, and a chamfered drainage arc surface is formed on the outer side of the drainage ring.

[0009] Among them, the diversion component includes a base and a connecting ring connected to and coaxially fixed with the surface of the base. A sealing ring that is aligned and adapted to the sealing groove is sleeved on the outer side of the connecting ring. An outer drainage groove surface is formed at the edge of the top of the connecting ring, and an inner drainage groove surface is formed at the top of the inner side of the connecting ring.

[0010] As a preferred technical solution of the present application, the first laminated plate includes a plate body, side convex ribs formed on both sides of the surface of the plate body, and sealing convex platforms formed on the other two sides of the surface of the plate body.

[0011] Among them, a sealing inner groove is jointly formed on the surfaces of the side convex ribs and the sealing convex platforms, and a matching convex strip corresponding to and adapted to the sealing inner groove is provided on the back surface of the plate body.

[0012] As a preferred technical solution of the present application, the first laminated plate further includes a locking assembly. The locking assembly includes two groups of symmetric male plates and two groups of corresponding female plates. The two groups of male plates are symmetrically fixed at the edges on both sides of the side convex ribs, and the two groups of female plates are symmetrically fixed at the other edges of the side convex ribs close to the male plates.

[0013] As a preferred technical solution of the present application, the locking assembly further includes a clamping plate fixed on the surface of the male plate and a groove body opened on the female plate corresponding to the clamping plate.

[0014] Among them, a first set of teeth is formed in the inner groove of the clamping plate, and a second set of teeth corresponding to the first set of teeth is formed on the inner side of the female plate.

[0015] As a preferred technical solution of the present application, sealing side plates are snap-fitted and installed on the surfaces of one of the first laminated plate and the second laminated plate, and a base is jointly installed at the bottoms of the two sealing side plates. Protective side plates are jointly fixedly connected to the front and back surfaces of the two sealing side plates.

[0016] As a preferred technical solution of the present application, heat dissipation through grooves are opened on the surfaces of the protective side plates, and the shape of the heat dissipation through grooves is rectangular.

[0017] As a preferred technical solution of the present application, a cooling assembly is fixedly connected to one of the sealing side plates. A refrigeration medium inlet part and a refrigeration medium outlet part are respectively communicated and provided on both sides of the top of the cooling assembly.

[0018] As a preferred technical solution of the present application, a liquid inlet pipe and a liquid outlet pipe are respectively communicated and provided on both sides of the surface of the other sealing side plate.

[0019] As a preferred technical solution of the present application, the outer diameter of the connecting ring and the inner diameter of the drainage ring are in interference fit.

[0020] As a preferred technical solution of the present application, mating portions are inclined and extended at the edges of the side convex ribs, and the side convex ribs on adjacent two plate bodies are not tightly mated with each other through their respective extended mating portions.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] In the solution of the present application:

[0023] 1. Through the interactive arrangement of the first stacked plates and the second stacked plates, a cavity for the flow of liquid or refrigerating medium is formed between adjacent first stacked plates and second stacked plates, so that the refrigerating liquid and the liquid to be heat-exchanged can be blocked from each other through the first stacked plates and the second stacked plates, enabling them to flow in their respective spaces and transfer heat to the surfaces of the first stacked plates or the second stacked plates, thereby realizing heat exchange treatment and keeping the temperature inside the wind power converter relatively constant, thus ensuring the stability during the operation of the wind power converter;

[0024] 2. Through the interactive arrangement of multiple first stacked plates and second stacked plates, the liquid and the refrigerating medium inside can fully exchange heat with the first stacked plates and the second stacked plates in the corresponding spaces during the flowing process, effectively increasing the heat exchange area of the device, making the liquid heat exchange for cooling the wind power converter more efficient, and being beneficial to extending the service life of the wind power converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a cooling device for a wind power converter provided by the present application;

[0026] Figure 2 is a schematic bottom view structural diagram of a cooling device for a wind power converter provided by the present application;

[0027] Figure 3 is a schematic plate body structural diagram of a cooling device for a wind power converter provided by the present application;

[0028] Figure 4 is a... of a cooling device for a wind power converter provided by the present application Figure 3 magnified structural diagram at position A;

[0029] Figure 5 is a schematic structural diagram of the first stacked plate and the second stacked plate of a cooling device for a wind power converter provided by the present application;

[0030] Figure 6 is a schematic structural diagram of the flow of the refrigerating medium inside after the first stacked plate and the second stacked plate of a cooling device for a wind power converter provided by the present application are assembled;

[0031] Figure 7 Schematic diagram of the liquid flow structure inside after the first laminated plate and the second laminated plate of a wind power converter cooling device provided by this application are assembled;

[0032] Figure 8 Schematic diagram of the drainage component and the diversion component structure of a wind power converter cooling device provided by this application;

[0033] Figure 9 Of a wind power converter cooling device provided by this application Figure 6 Enlarged structure schematic diagram at position B in

[0034] Labels in the figure:

[0035] 10. First laminated plate; 101. First through groove; 102. Sealing side plate; 103. Base; 104. Protective side plate; 105. Heat dissipation through groove; 106. Cooling assembly; 108. Refrigerant inlet part; 109. Refrigerant outlet part;

[0036] 110. Plate body; 111. Side convex rib; 113. Sealing boss; 114. Sealing inner groove; 115. Matching convex strip;

[0037] 20. Second laminated plate; 201. Second through groove;

[0038] 310. Drainage component; 311. Drainage ring; 312. Sealing groove; 313. Chamfered drainage arc surface;

[0039] 320. Diversion component; 321. Base; 322. Connecting ring; 323. Sealing ring; 324. Outer drainage groove surface; 325. Inner drainage groove surface;

[0040] 40. Locking assembly; 401. Male plate; 402. Female plate; 403. Card plate; 404. Groove body; 405. First tooth; 406. Second tooth. Detailed implementation manners

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0042] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention claimed, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0043] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0044] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0045] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0046] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a cooling device for a wind power converter, including a first laminated plate 10 and a second laminated plate 20. The number of the first laminated plate 10 and the second laminated plate 20 is several and their structures are the same. The several first laminated plates 10 and second laminated plates 20 are arranged alternately. Both sides inside the first laminated plate 10 are provided with first through grooves 101, and both sides inside the second laminated plate 20 are provided with second through grooves 201;

[0047] As Figure 6 and Figure 7 shown, through the alternately arranged first laminated plate 10 and second laminated plate 20, cavities for the refrigeration medium and liquid to flow can be formed between adjacent ones, and the cavities for the refrigeration medium and liquid to flow are separated from each other so that they do not contact each other, thereby cooperating with the heat transfer of the first laminated plate 10 and the second laminated plate 20 to achieve effective heat exchange and cooling;

[0048] Both the first through grooves 101 and the second through grooves 201 on the first laminated plate 10 and the second laminated plate 20 are provided with drainage components 310 and diversion components 320, and the positions of the drainage components 310 and the diversion components 320 on the first laminated plate 10 and the second laminated plate 20 are arranged alternately;

[0049] Among them, the drainage component 310 includes a drainage ring 311. Two groups of parallel sealing grooves 312 are opened on the inner side of the drainage ring 311, and a chamfered drainage arc surface 313 is formed on the outer side of the drainage ring 311. Through the setting of the chamfered drainage arc surface 313, as Figure 6As shown, when the liquid enters the inside of the drainage ring 311 through the chamfered drainage arc surface 313, it can better collect the liquid outside the drainage ring 311 inside the drainage ring 311 to achieve better diversion and transportation of the liquid;

[0050] Among them, the diversion component 320 includes a base 321, a connection ring 322 connected to and coaxially fixed with the surface of the base 321. A sealing ring 323 adapted to the sealing groove 312 is sleeved outside the connection ring 322. An outer drainage groove surface 324 is formed at the edge of the top of the connection ring 322, and an inner drainage groove surface 325 is formed at the top inside the connection ring 322. Through the setting of the inner drainage groove surface 325, the liquid output from the drainage ring 311 can be transported, reducing the impact force during the contact between the liquid and the connection ring 322 during the movement process, making its resistance smaller, and being conducive to the stable flow of the liquid or the refrigeration medium;

[0051] Specifically, after the first laminated plate 10 and the second laminated plate 20 are spliced with each other in an interleaved manner, the drainage ring 311 on the first laminated plate 10 is clamped to the sealing ring 323 on the diversion component 320 on the adjacent second laminated plate 20 through the sealing groove 312. Similarly, the drainage ring 311 on the second laminated plate 20 is clamped to the sealing ring 323 on the diversion component 320 on the adjacent first laminated plate 10 through the sealing groove 312. Thus, the splicing between adjacent laminated plates is completed, and at the same time, the output of the refrigeration medium and the liquid is realized, enabling them to flow in the space formed by the laminated plates in an interleaved manner and not directly contacting each other, which is conducive to subsequent heat exchange operations;

[0052] As a further optimization of this embodiment: the outer diameter of the connection ring 322 and the inner diameter of the drainage ring 311 are in interference fit. The edges of the side convex ribs 111 are all inclined and extended with mating parts. The side convex ribs 111 on adjacent two plate bodies 110 are tightly fitted with each other through their respective extended mating parts. Through the setting of the mating parts, the contact area at the edges of the first laminated plate 10 and the second laminated plate 20 is increased, improving the overall strength after multiple laminated plates are spliced with each other, and at the same time, being conducive to the improvement of the sealing performance;

[0053] The first laminated plate 10 includes a plate body 110, side convex ribs 111 formed on both sides of the surface of the plate body 110, and sealing bosses 113 formed on the other two sides of the surface of the plate body 110;

[0054] Among them, a sealing inner groove 114 is jointly formed on the surfaces of the side convex ribs 111 and the sealing bosses 113, and a mating convex strip 115 corresponding to and adapted to the sealing inner groove 114 is provided on the back surface of the plate body 110;

[0055] With the arrangement of the scoliosis ribs 111, the splicing of the mutually overlapping plates is made more convenient, and the snap-in splicing can be carried out without precise positioning. At the same time, with the cooperation of the convex strips 115 and the sealed inner grooves 114, the spliced overlapping plates can be effectively sealed, so that the liquid inside will not flow out during the subsequent heat exchange process to meet the use requirements of heat exchange;

[0056] The first overlapping plate 10 further includes a locking assembly 40. The locking assembly 40 includes two groups of symmetric male plates 401 and two corresponding female plates 402. The two groups of male plates 401 are symmetrically fixed at the edges on both sides of the scoliosis ribs 111, and the two groups of female plates 402 are symmetrically fixed at the other edges of the scoliosis ribs 111 close to the male plates 401;

[0057] The locking assembly 40 further includes a clamping plate 403 fixed on the surface of the male plate 401 and a groove body 404 opened on the female plate 402 corresponding to the clamping plate 403;

[0058] Among them, a first locking tooth 405 is formed in the inner groove of the clamping plate 403, and a second locking tooth 406 corresponding to the first locking tooth 405 is formed on the inner side of the female plate 402. Specifically, during the splicing process of the first overlapping plate 10 and the second overlapping plate 20, the first locking tooth 405 moves towards the second locking tooth 406 without any movement obstruction. When the first overlapping plate 10 and the second overlapping plate 20 are assembled together, the first locking tooth 405 and the second locking tooth 406 are locked to each other and cannot be separated, thus ensuring the initial stability between the overlapping plates after splicing;

[0059] Sealing side plates 102 are snap-fitted and installed on the surfaces of one of the first overlapping plate 10 and the second overlapping plate 20, and a base 103 is jointly installed at the bottoms of the two sealing side plates 102. Protective side plates 104 are jointly fixedly connected to the front and back of the two sealing side plates 102. Through the cooperation of the base 103 and the sealing side plates 102, the initially spliced overlapping plates can be effectively fixed for the second time, and they can be assembled with external connecting components to complete the overall assembly of the device;

[0060] Heat dissipation through grooves 105 are opened on the surface of the protective side plates 104. The shape of the heat dissipation through grooves 105 is rectangular. Through the arrangement of the heat dissipation through grooves 105, while realizing the mutual connection and support of multiple overlapping plates, the heat dissipation requirements are also met;

[0061] Among them, one of the sealing side plates 102 is fixedly connected with a cooling assembly 106. The two sides of the top of the cooling assembly 106 are respectively communicated with a refrigeration medium inlet part 108 and a refrigeration medium outlet part 109. The two sides of the surface of the other sealing side plate 102 are respectively communicated with a liquid inlet pipe and a liquid outlet pipe;

[0062] Specifically, during use, the refrigerant inlet part 108 and the refrigerant outlet part 109 are connected to the internal air-conditioning system for transporting the refrigerant, and the liquid inlet pipe and the liquid outlet pipe are connected to the internal wind power converter pipeline. When cooling the wind power converter, the high temperature inside the wind power converter is transferred to the liquid, and the liquid with a certain temperature passes through the liquid inlet pipe as Figure 6 shown, and is output to a plurality of first stacked plates 10 and second stacked plates 20 assemblies according to its trajectory. At this time, the refrigerant synchronously enters between the first stacked plate 10 and the second stacked plate 20 through the refrigerant inlet part 108, and its movement form is as Figure 7 shown. At this time, through the cooperation of the first stacked plate 10 and the second stacked plate 20, the transfer and heat exchange of the high-temperature liquid can be formed. The liquid after heat exchange flows back into the wind power converter through the liquid outlet pipe to effectively cool the wind power converter.

[0063] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A wind power converter cooling device, characterized in that: The invention comprises a first stack of plates (10) and a second stack of plates (20), wherein the first stack of plates (10) and the second stack of plates (20) are both multiple in number and have the same structure, and the multiple first stack of plates (10) and the second stack of plates (20) are arranged alternately with each other, and the first stack of plates (10) is provided with a first through groove (101) on both sides inside, and the second stack of plates (20) is provided with a second through groove (201) on both sides inside; A drainage component (310) and a flow guide component (320) are provided inside the first through groove (101) and the second through groove (201) on the first stacked plates (10) and the second stacked plates (20), and the positions of the drainage components (310) and the flow guide components (320) on the first stacked plates (10) and the second stacked plates (20) are staggered; The drainage component (310) comprises a drainage ring (311), the inner side of the drainage ring (311) is provided with two sets of mutually parallel sealing grooves (312), and the outer side of the drainage ring (311) is formed with a chamfered drainage arc surface (313); The guide component (320) comprises a base (321), a connecting ring (322) connected to the surface of the base (321) and coaxially fixed therewith, a sealing ring (323) corresponding to and matching the sealing groove (312) is sleeved on the outer side of the connecting ring (322), an outer drainage groove surface (324) is formed at the edge of the top of the connecting ring (322), and an inner drainage groove surface (325) is formed at the top of the inner side of the connecting ring (322).

2. A wind power converter cooling device according to claim 1, characterized in that: The first stacked plates (10) include a plate body (110), side ribs (111) formed on two sides of the surface of the plate body (110), and sealing bosses (113) formed on the other two sides of the surface of the plate body (110); The surfaces of the side ribs (111) and the sealing boss (113) jointly form a sealing inner groove (114), and the back side of the plate body (110) is provided with a matching convex strip (115) corresponding to and matching the sealing inner groove (114).

3. A wind power converter cooling device according to claim 2, characterized in that: The first stack of plates (10) further comprises a locking assembly (40), wherein the locking assembly (40) comprises two groups of symmetrical male plates (401) and two groups of corresponding female plates (402), wherein the two groups of male plates (401) are symmetrically fixed at the edges on both sides of the side convex rib (111), and the two groups of female plates (402) are symmetrically fixed at the edge of the other side of the side convex rib (111) close to the male plate (401).

4. A wind power converter cooling device according to claim 3, characterized in that: The locking assembly (40) further comprises a clamping plate (403) fixed to the surface of the male plate (401) and a slot (404) opened on the female plate (402) and corresponding to the clamping plate (403); The inner groove of the clamping plate (403) is formed with a first clamping tooth (405), and the inner side of the mother plate (402) is formed with a second clamping tooth (406) corresponding to the first clamping tooth (405).

5. The wind power converter cooling device according to claim 1, characterized in that: A sealing side plate (102) is mounted on the surface of one of the first stacked plates (10) and the second stacked plates (20), and a base (103) is mounted on the bottom of the two sealing side plates (102), and a protective side plate (104) is fixedly connected to the front and back surfaces of the two sealing side plates (102).

6. A wind power converter cooling device according to claim 5, characterized in that: A heat dissipation groove (105) is provided on the surface of the protective side plate (104), and the heat dissipation groove (105) is in a rectangular shape.

7. A wind power converter cooling device according to claim 6, characterized in that: in, One of the sealing side plates (102) is fixedly connected to a cooling assembly (106), and both sides of the top of the cooling assembly (106) are respectively connected to a refrigeration medium inlet (108) and a refrigeration medium outlet (109).

8. A wind power converter cooling device according to claim 7, characterized in that: A liquid inlet pipe and a liquid outlet pipe are respectively connected to the two sides of the surface of the other sealing side plate (102).

9. A wind power converter cooling device according to claim 1, characterized in that: The outer diameter of the connecting ring (322) and the inner diameter of the drainage ring (311) are in interference fit.

10. A wind power converter cooling device according to claim 2, characterized in that: The edges of the side convex ribs (111) are all provided with matching portions extending obliquely, and the side convex ribs (111) on two adjacent plate bodies (110) are closely matched with each other through the matching portions extending therefrom.

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