Water path cooling and heat dissipation system for electric reactor

Abstract

The utility model discloses an electric reactor waterway cooling heat dissipation system, which comprises a coil winding wound on an iron core, and a lower yoke and a fixed bracket which are arranged at the bottom of the iron core, a water segregator is arranged between the bottom of the iron core and the fixed bracket around the lower yoke, and is provided with a water inlet branch connecting pipe and a water outlet branch connecting pipe which are arranged on two sides of the lower yoke; the coil winding is internally provided with two groups of water path assemblies which are respectively arranged on two sides of the lower yoke, so that the water segregator, the water path assemblies and the water inlet and outlet pipelines are all positioned below the coil winding, water leakage of the water segregator and the water pipes can be prevented from dropping into the coil winding, and the influence of transportation and installation collision can be avoided; and the water inlet branch connecting pipe and the water outlet branch connecting pipe of the water segregator and the two groups of water path assemblies in each group of coil windings are correspondingly arranged on the same side, so that the pipeline connecting distance can be shortened, each group of coils are uniform in heat conduction, installation and pipe arrangement are convenient, and the water-cooling heat dissipation performance of the reactor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to a water channel cooling and heat dissipation system for reactors. Background Art

[0002] With the rapid development of power electronics technology, the main application areas are power quality and protection, switching power supply conversion, and solar energy technology. The requirements for the installation volume, operating environment, and performance of the supporting reactors are getting higher and higher. A large amount of heat is required to be generated in the reactor. If the normal use of the reactor is to be guaranteed and its service life is to be increased, the reactor needs to be cooled. Many existing reactors use water-cooled reactors. The water-cooled reactor mainly reduces the temperature of the reactor through the cooling pipe system. The existing cooling pipe system mainly consists of two-inlet and two-outlet (or four-inlet and four-outlet) water pipes and water distribution pipes. The water distributor is arranged at the upper iron yoke end of the iron core, and the water pipeline and the water distributor are connected by a water pipe joint. However, the cooling pipeline method adopted by the existing reactor still has the following problems: 1. Since the water distributor, water pipeline and pipe joints are all distributed at the upper end of the reactor, the water distributor and pipe joints are easily collided during installation and transportation, causing damage to the cooling pipe system. In particular, when the water distributor and / or pipe joints malfunction and leak, water will drip down into the coil, causing the reactor to malfunction and become unusable, posing a safety hazard; 2. Each coil conducts heat unevenly, affecting the heat dissipation performance and service life of the product. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the water distributor and water pipes are all distributed at the upper end of the reactor, which is easy to be damaged by collision during installation and transportation, and when a fault occurs and water leaks, it will drip into the coil, causing the reactor to malfunction and become unusable, posing a safety hazard.

[0004] In order to solve the above technical problems, the utility model provides a water cooling and heat dissipation system for a reactor, including an iron core, a coil winding, a water distributor and a water channel assembly. The coil winding is wound on the iron core, and a connected lower yoke and a fixed bracket are provided at the bottom of the iron core. The water distributor is arranged around the lower yoke and is located between the bottom of the iron core and the fixed bracket. The water distributor has two branch pipe structures extending on both sides of the lower yoke. Two groups of water channel assemblies are provided in the coil winding and are arranged on both sides of the lower yoke. The two groups of water channel assemblies are respectively arranged on the same side as the two branch pipe structures. Each group of the water channel assemblies includes two water channel cooling plates spaced apart between the coil winding and the iron core, and the two water channel cooling plates are connected to the water distributor through inlet and outlet water pipes respectively.

[0005] As a preferred solution, the water divider is arranged in a U-shaped shape and surrounds the outer side of the lower yoke.

[0006] As a preferred solution, the water divider is U-shaped and semi-enclosed on the outer side of the lower yoke.

[0007] As a preferred solution, the water divider includes a water inlet manifold and a water outlet manifold stacked in a U-shape on the lower yoke, and two lower limit plates are fastened to the side walls on both sides of the lower yoke, and the water inlet manifold and the water outlet manifold are fixedly connected to the two lower limit plates respectively.

[0008] As a preferred solution, the inlet and outlet water pipes include a water inlet pipe connecting the water inlet manifold and the water channel cooling plate, and a water outlet pipe connecting the water outlet manifold and the water channel cooling plate. A water channel connecting the water inlet pipe and the water outlet pipe is bent inside the water channel cooling plate.

[0009] As a preferred solution, the water inlet manifold includes a water inlet joint and two water inlet pipes respectively arranged in parallel on the two lower limit plates, and at least one of the water inlet pipes is connected to the two water inlet pipes.

[0010] As a preferred solution, the water outlet manifold includes a water outlet joint and two water outlet pipes respectively arranged in parallel on the two lower limit plates, and at least one of the water outlet pipes is connected to the two water outlet pipes.

[0011] As a preferred solution, the coil windings and the iron cores are respectively provided with three, the tops of the three iron cores are connected to an upper yoke, and the bottoms of the three iron cores are connected to a lower yoke. Four water cooling plates are arranged in the middle of each of the coil windings, and the four water cooling plates are respectively connected to the water inlet manifold through four water inlet pipes, and are respectively connected to the water outlet manifold through four water outlet pipes.

[0012] As a preferred solution, the coil winding includes two first installation cavities relatively arranged on both sides of the iron core, and two second installation cavities relatively arranged outside the two first installation cavities, and water cooling plates are respectively installed in the two first installation cavities and the two second installation cavities.

[0013] As a preferred solution, two locking rods are provided on the top of the upper yoke, and the two lower limit plates are provided with two groups of locking blocks corresponding to the two locking rods. Two fixed pull rods are threadedly connected between the two groups of locking blocks and the two locking rods.

[0014] Compared with the existing technology, the technical solution of this utility model has the following advantages:

[0015] 1. In the reactor water cooling and heat dissipation system provided by the present invention, the water distributor is arranged around the lower yoke between the bottom of the iron core and the fixed bracket, and has two branch pipe structures extending on both sides of the lower yoke. The space occupancy rate of this water distributor is low. By rationally optimizing the use of the position space between the coil winding, the lower yoke and the fixed bracket, the water distributor, the water channel assembly and the inlet and outlet water pipes are all located below the coil winding, which can prevent the water distributor and water pipes from dripping into the coil winding when leaking, and at the same time avoid the water distributor and the water channel assembly from being affected by collision during installation and transportation. The protection is good, and the stable and safe operation of the reactor is ensured. Moreover, the two branch pipe structures of the water distributor and the two groups of water channel assemblies in each group of coil windings are arranged on the same side, which can shorten the connection distance between the water channel cooling plate and the water distributor, simplify the installation process, facilitate the installation and piping, and is easy to install and labor-saving, with good practicality, thereby improving the water cooling and heat dissipation performance of the reactor and better meeting the customer's usage needs.

[0016] 2. In the reactor water cooling and heat dissipation system provided by the present invention, the reactor includes three coil windings wound on three iron cores, and the three coil windings are provided with a total of twelve water cooling plates and twelve inlet and outlet water pipes. The water divider with a U-shaped structure is arranged around the lower yoke at the bottom of the coil winding, which not only has a low space occupancy rate, but also realizes the same-side distribution as the water cooling plate, which is convenient for water pipe connection. The reactor adopting this technical solution is connected with the twelve water cooling plates through the water divider with a U-shaped structure to form a twelve-input and twelve-outlet reactor water cooling and heat dissipation system, which increases the cooling and heat dissipation area of ​​the coil windings and the iron core, makes the heat dissipation of each coil winding more uniform, thereby achieving the purpose of rapid heat dissipation of the reactor, which is beneficial to improving the heat dissipation performance and service life of the product, ensuring the safe and normal operation of the reactor, and promoting the development of the reactor towards large-capacity control, high reliability and miniaturization.

[0017] 3. In the reactor water path cooling and heat dissipation system provided by the present invention, the water divider is composed of a stacked water inlet manifold and a water outlet manifold, and the water inlet manifold and the water outlet manifold are respectively fixed on the two lower limit plates on both sides of the lower yoke iron. This design makes the two water inlet pipes and the two water outlet pipes distributed on the same side as the two groups of water path components in the coil winding, so that it is convenient to connect the water inlet pipe between the water inlet pipe and the two groups of water path components, and to connect the water outlet pipe between the water outlet pipe and the two groups of water path components. The connection distance is short and the installation is convenient, thereby forming a cooling water path through the water inlet manifold, the water inlet pipe, the water path cooling plate, the water outlet pipe and the water outlet manifold, which can well dissipate heat and cool the coil winding and the iron core part of the reactor core, thereby improving the working performance of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the reactor water cooling and heat dissipation system provided by the utility model;

[0020] Figure 2 This is a side view of the reactor water cooling and heat dissipation system provided by the utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the reactor water cooling and heat dissipation system of the present invention;

[0022] Figure 4 This is a schematic diagram of the installation structure of the water divider of the utility model at the bottom of the reactor;

[0023] Explanation of the accompanying symbols: 1. Iron core; 2. Coil winding; 3. Water distributor; 30. Branch pipe structure; 301. Water inlet branch pipe; 302. Water outlet branch pipe; 31. Water inlet manifold; 311. Water inlet joint; 32. Water outlet manifold; 321. Water outlet joint; 4. Water cooling plate; 5. Water inlet and outlet pipes; 51. Water inlet pipe; 52. Water outlet pipe; 6. Lower yoke; 61. Lower limit plate; 7. Upper yoke; 8. Fixed bracket; 9. Fixed pull rod; 91. Locking rod; 92. Locking block. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Example

[0029] The present embodiment will be described in detail below with reference to the accompanying drawings:

[0030] This embodiment provides Figure 1-4 The reactor water cooling and heat dissipation system shown includes an iron core 1, a coil winding 2, a water distributor 3 and a water channel assembly. The coil winding 2 is wound on the iron core 1, and a connected lower yoke 6 and a fixed bracket 8 are provided at the bottom of the iron core 1. The water distributor 3 is arranged around the lower yoke 6 and is located between the bottom of the iron core 1 and the fixed bracket 8. The water distributor 3 has two branch pipe structures 30 extending on both sides of the lower yoke 6. Two groups of water channel assemblies are provided in the coil winding 2 and are arranged on both sides of the lower yoke 6. The two groups of water channel assemblies are respectively arranged on the same side as the two branch pipe structures 30. Each group of the water channel assemblies includes two water channel cooling plates 4 spaced apart between the coil winding 2 and the iron core 1. The two water channel cooling plates 4 are respectively connected to the water distributor 3 through inlet and outlet water pipes 5.

[0031] The above-mentioned implementation mode is the core technical solution of this embodiment. The space occupancy rate of this water distributor is low. By rationally optimizing the use of the position space between the coil winding 2, the lower yoke 6 and the fixed bracket 8, the water distributor 3, the water channel assembly and the inlet and outlet water pipes 5 are all located below the coil winding 2. This can prevent the water distributor 3 and the water pipe from dripping into the coil winding 2 when leakage occurs, and at the same time avoid the water distributor 3 and the water channel assembly from being affected by collision during installation and transportation. It has good protection and ensures the stable and safe operation of the reactor. In addition, the water distributor 3 has two branch pipe structures 30 extending on both sides of the lower yoke 6, so that the two branch pipe structures and the two groups of water channel assemblies in each group of coil windings are arranged on the same side. This can shorten the connection distance between the water channel cooling plate and the water distributor, simplify the installation process, facilitate the installation of pipes, and make the installation convenient and labor-saving, with good practicality, thereby improving the water cooling and heat dissipation performance of the reactor and better meeting the customer's usage needs.

[0032] The following combination Figure 2-4 The specific setting method of the water separator is described in detail:

[0033] The water divider 3 is semi-enclosed in a U-shape and arranged on the outside of the lower yoke 6; or, the water divider 3 is enclosed in a U-shape and arranged on the outside of the lower yoke 6, so that the water divider 3 is fixed on the side wall of the lower yoke 6 and is arranged in the bottom protective space formed between the coil winding 2 and the fixed bracket 8. In addition, the width of the coil winding 2 is larger than the width of the lower yoke 6, which can effectively prevent the water divider 3 from being affected by collisions with foreign objects, and play a protective role for the water divider 3 installed on the lower yoke 6.

[0034] As a preferred embodiment, the water divider 3 includes a water inlet manifold 31 and a water outlet manifold 32 which are stacked in a U-shape on the lower yoke 6. Two lower limit plates 61 are fastened to the side walls of the lower yoke 6. The water inlet manifold 31 and the water outlet manifold 32 are respectively fixedly connected to the two lower limit plates 61. The two lower limit plates 61 meet the installation position requirements of the water divider 3. The inlet and outlet water pipes 5 include an inlet pipe 51 connecting the inlet manifold 31 and the water cooling plate 4, and an outlet pipe 52 connecting the outlet manifold 32 and the water cooling plate 4. A water channel connecting the inlet pipe 51 and the outlet pipe 52 is bent inside the water cooling plate 4. This bending design of the cooling water channel can increase the distance the water flows. In order to achieve water communication between the water distributor 3 and the water cooling plate 4, the water inlet distributor 31 includes a water inlet joint 311 and two water inlet connecting pipes 301 respectively arranged in parallel with the two lower limit plates 61. The two water inlet connecting pipes 301 are respectively connected to the water inlet connecting pipes 51, so that the water inlet connecting pipes 301 are connected to the water cooling plate 4 through the water inlet connecting pipes 51; correspondingly, the water outlet distributor 32 includes a water outlet joint 321 and two water outlet connecting pipes 302 respectively arranged in parallel with the two lower limit plates 61. The two water outlet connecting pipes 302 are respectively connected to the water outlet connecting pipes 52, so that the water outlet connecting pipes 302 are connected to the water cooling plate 4 through the water outlet connecting pipes 52. The water inlet connecting pipe 301 and the water outlet connecting pipe 302 constitute the branch pipe structure 30 of the water distributor 3. This design makes the two water inlet pipes 301 and the two water outlet pipes 302 distributed on the same side as the two groups of water channel components in the coil winding 2, so as to facilitate the connection of the water inlet pipe 51 between the water inlet pipe 301 and the two groups of water channel components, and to facilitate the connection of the water outlet pipe 52 between the water outlet pipe 302 and the two groups of water channel components. The connection distance is short and the installation is convenient, thereby forming a cooling water path passing through the water inlet manifold 31, the water inlet pipe 51, the water channel cooling plate 4, the water outlet pipe 52 and the water outlet manifold 32, which can effectively dissipate heat and cool the coil winding and the iron core part of the reactor core, thereby improving the working performance of the reactor.

[0035] The reactor provided in the embodiment is a three-phase reactor structure, therefore, Figure 1 The coil windings 2 and the iron cores 1 are respectively provided with three, the tops of the three iron cores 1 are connected to the upper yoke 7, and the bottoms of the three iron cores 1 are connected to the lower yoke 6. Four water cooling plates 4 are arranged in the middle of each of the coil windings 2, and the four water cooling plates 4 are respectively connected to the water inlet manifold 31 through four water inlet pipes 51, and are respectively connected to the water outlet manifold 32 through four water outlet pipes 52. It can be seen from the above structure that the inductor includes three coil windings 2 wound on three iron cores 1, and the three coil windings 2 are provided with a total of twelve water cooling plates 4 and twelve inlet and outlet water pipes 5. The water divider 3 with a U-shaped structure is arranged around the lower yoke 6 at the bottom of the coil winding 2, which not only has a low space occupancy rate, but also realizes the same side distribution as the water cooling plate 4, which is convenient for water pipe connection. The inductor adopting this technical solution is connected with the twelve water cooling plates 4 through the water divider 3 with a U-shaped structure to form a twelve-input and twelve-output inductor water cooling and heat dissipation system, which increases the cooling and heat dissipation area of ​​the coil windings and the iron core, makes the heat dissipation of each coil winding more uniform, thereby achieving the purpose of rapid heat dissipation of the reactor, which is beneficial to improving the heat dissipation performance and service life of the product, ensuring the safe and normal operation of the reactor, and promoting the development of the reactor towards large-capacity control, high reliability and miniaturization.

[0036] like Figure 2-3 As shown, the coil winding 2 includes two first installation cavities relatively arranged on both sides of the iron core 1, and two second installation cavities relatively arranged on the outside of the two first installation cavities. Water cooling plates 4 are respectively installed in the two first installation cavities and the two second installation cavities. With this structural arrangement, the two water cooling plates 4 installed in the two first installation cavities are in adjacent contact with the iron core 1, thereby playing a heat dissipation and cooling role for the iron core 1. In addition, the two water cooling plates 4 installed in the two second installation cavities mainly play a heat dissipation and cooling role for the coil winding 2. With this structural arrangement, by arranging four water cooling plates 4 in each coil winding 2, the heat dissipation area can be greatly increased, a three-dimensional and multi-faceted heat dissipation effect is achieved, the heat dissipation is uniform, the heat dissipation efficiency is improved, and the heat dissipation performance of the reactor is reliably improved.

[0037] It is further preferred that the iron core 1 is composed of a plurality of silicon steel sheets, two locking rods 91 are provided on the top of the upper yoke 7, and the two lower limit plates 61 are correspondingly provided with two groups of locking blocks 92 which are opposite to the two locking rods 91 up and down, and two fixed pull rods 9 are threadedly connected between the two groups of locking blocks 92 and the two locking rods 91. When the two fixed pull rods 9 are fixed, the upper yoke 7 and the lower yoke 6 are firmly fixed at the upper and lower ends of the three iron cores 1. The upper and lower yokes of this type of inductor can conduct magnetism and reduce leakage magnetism, thereby improving the efficiency and performance of the inductor, and can also prevent the inductor from generating vibration and noise during operation, thereby ensuring the stability and reliability of the inductor.

[0038] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A reactor water cooling and heat dissipation system, comprising an iron core (1), a coil winding (2), a water distributor (3) and a water channel assembly, wherein the coil winding (2) is wound on the iron core (1), and a lower yoke (6) and a fixing bracket (8) connected to each other are provided at the bottom of the iron core (1), characterized in that: The water distributor (3) is arranged around the lower yoke (6) and is located between the bottom of the iron core (1) and the fixed bracket (8). The water distributor (3) has two branch pipe structures (30) extending on both sides of the lower yoke (6). Two groups of water channel components are arranged on both sides of the lower yoke (6) in the coil winding (2). The two groups of water channel components are respectively arranged on the same side as the two branch pipe structures (30). Each group of the water channel components includes two water channel cooling plates (4) arranged at intervals between the coil winding (2) and the iron core (1). The two water channel cooling plates (4) are connected to the water distributor (3) through water inlet and outlet pipes (5).

2. The reactor water cooling and heat dissipation system according to claim 1, characterized in that: The water divider (3) is arranged in a U-shaped shape and surrounds the outer side of the lower yoke (6).

3. The reactor water cooling and heat dissipation system according to claim 1, characterized in that: The water divider (3) is U-shaped and semi-enclosed on the outside of the lower yoke (6).

4. The reactor water cooling and heat dissipation system according to any one of claims 1 to 3, characterized in that: The water divider (3) comprises a water inlet divider (31) and a water outlet divider (32) which are stacked in a U-shape on the lower yoke (6); two lower limit plates (61) are fastened to the side walls of both sides of the lower yoke (6); and the water inlet divider (31) and the water outlet divider (32) are respectively fixedly connected to the two lower limit plates (61).

5. The reactor water cooling and heat dissipation system according to claim 4, characterized in that: The water inlet and outlet pipes (5) include a water inlet pipe (51) connecting the water inlet manifold (31) and the water channel cooling plate (4), and a water outlet pipe (52) connecting the water outlet manifold (32) and the water channel cooling plate (4); a water channel connecting the water inlet pipe (51) and the water outlet pipe (52) is bent inside the water channel cooling plate (4).

6. The reactor water cooling and heat dissipation system according to claim 5, characterized in that: The water inlet manifold (31) comprises a water inlet joint (311) and two water inlet pipes (301) respectively arranged in parallel on two lower limit plates (61), and at least one of the water inlet pipes (51) is connected to the two water inlet pipes (301).

7. The reactor water cooling and heat dissipation system according to claim 6, characterized in that: The water outlet manifold (32) comprises a water outlet joint (321) and two water outlet pipes (302) respectively arranged in parallel on two lower limit plates (61), and at least one water outlet pipe (52) is connected to the two water outlet pipes (302).

8. The reactor water cooling and heat dissipation system according to any one of claims 5 to 7, characterized in that: The coil windings (2) and the iron cores (1) are respectively provided with three corresponding ones, the tops of the three iron cores (1) are connected to an upper yoke (7), and the bottoms of the three iron cores (1) are connected to a lower yoke (6), and four water cooling plates (4) are arranged in the middle of each of the coil windings (2), and the four water cooling plates (4) are respectively connected to the water inlet manifold (31) through four water inlet pipes (51), and are respectively connected to the water outlet manifold (32) through four water outlet pipes (52).

9. The reactor water cooling and heat dissipation system according to claim 8, characterized in that: The coil winding (2) comprises two first installation cavities arranged on both sides of the iron core (1) and two second installation cavities arranged outside the two first installation cavities, and water cooling plates (4) are respectively installed in the two first installation cavities and the two second installation cavities.

10. The reactor water cooling and heat dissipation system according to claim 8, characterized in that: Two locking rods (91) are provided on the top of the upper yoke (7), and two sets of locking blocks (92) are provided on the two lower limit plates (61) respectively, which are opposite to the two locking rods (91) in the upper and lower directions. Two fixed pull rods (9) are threadedly connected between the two sets of locking blocks (92) and the two locking rods (91).

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