Rectifier heat dissipation device

Abstract

The utility model relates to a rectifier heat dissipation device, which belongs to the field of rectifiers and comprises a shell and a rectifier arranged in the shell, a heat dissipation shell with an upper opening and a lower opening is sleeved outside the rectifier, and a heat conduction plate used for contacting with the rectifier to conduct heat is arranged inside the heat dissipation shell. The heat dissipation shell and the heat conduction plate are provided with a first heat conduction piece and a second heat conduction piece which are used for conducting heat respectively and are connected in a sliding mode through the first heat conduction piece and the second heat conduction piece, and the heat dissipation shell and the heat conduction plate are connected through a spring. Cooling fins arranged in the gas convection direction in the shell are fixedly installed on the outer side wall of the heat dissipation shell, a cooling pipe is fixedly installed on the cooling fins, and a water inlet and a water outlet of the cooling pipe are connected to a water cooling assembly on the outer side of the shell. And an air inlet fan and an air outlet fan which are used for circulating convection of air in the shell are arranged at the bottom and the top of the shell. According to the utility model, the radiating fins are arranged again, so that the air convection effect in the rectifier is improved, and the radiating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a rectifier heat sink and belongs to the field of rectifiers. Background Art

[0002] A rectifier is a device that converts AC power into DC power. Rectifiers are often used as power supply devices in factories to convert AC power into DC power for control systems and control signal transmission. When a general thyristor rectifier power supply rectifies AC power, the rectifier will generate a lot of heat. If the heat cannot be dissipated quickly, the rectifier will be overheated and the power-off protection will be executed, causing the rectifier to stop running, which can easily paralyze the control system in the factory and greatly affect the production operations in the factory.

[0003] Existing rectifiers mainly use a combination of water cooling and air cooling to dissipate heat for the rectifier to prevent the rectifier from stopping due to excessive temperature. For example, patent CN216015028U is an air-cooled and water-cooled hybrid thyristor rectifier power supply, and its air-cooling structure mainly uses the first heat sink and the second heat sink for air cooling and heat dissipation. However, since the first heat sink and the second heat sink are arranged horizontally, it is easy to cause poor air convection inside. Utility Model Content

[0004] In order to overcome the problems existing in the background technology, the utility model proposes a rectifier heat dissipation device, which rearranges the heat sink to improve the air convection effect inside the rectifier and improve the heat dissipation efficiency.

[0005] In order to solve the above problems, the utility model is implemented through the following technical solutions: a rectifier heat dissipation device, comprising a shell and a rectifier installed in the shell, a heat dissipation shell with upper and lower openings is sleeved on the outer side of the rectifier, a heat conduction plate for contacting the rectifier for heat conduction is arranged on the inner side of the heat dissipation shell, a first heat conduction sheet and a second heat conduction sheet for heat conduction are arranged on the heat dissipation shell and the heat conduction sheet respectively, the heat dissipation shell and the heat conduction sheet are slidably connected through the first heat conduction sheet and the second heat conduction sheet, and the heat dissipation shell and the heat conduction sheet are also connected through a spring, so that the rectifier is closely contacted by the heat conduction sheet;

[0006] The outer wall of the heat dissipation shell is fixedly mounted with heat dissipation fins arranged along the convection direction of the gas in the shell, the heat dissipation fins are evenly distributed along the circumference of the rectifier, and a cooling pipe arranged in a spiral shape along the rectifier is fixedly mounted on the heat dissipation fins, and the water inlet and the water outlet of the cooling pipe are respectively connected to the water cooling assembly outside the shell;

[0007] An air inlet fan and an air outlet fan are provided at the bottom and top of the shell for circulating air in the shell;

[0008] Furthermore, the water cooling assembly includes a heat exchanger connected to the water outlet and a water tank connected to the water inlet, the water tank and the heat exchanger are connected via a water pipe, and a water pump for driving water circulation is also provided on the water tank;

[0009] Furthermore, the upper end of the heat conducting plate is a bent portion, so that the heat conducting plate is configured such that the cavity for mounting the rectifier is open.

[0010] The beneficial effects of the utility model are as follows: the heat conducting plate provided in the utility model is in close contact with the rectifier, thereby improving the heat conducting efficiency of the heat conducting plate. At the same time, the setting direction of the heat sink is consistent with the air convection direction in the housing where the rectifier is installed, and the two sides of the heat sink with the largest contact area with the air can be effectively fully contacted by the convection air. And the heat can flow out to the outside of the housing along with the air flow, thereby improving the air cooling and heat dissipation efficiency. In addition, a spiral cooling pipe is also provided on the heat sink, which can further increase the heat on the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of a rectifier heat dissipation device;

[0012] Figure 2 It is an internal structure diagram of a rectifier heat sink;

[0013] Figure 3 is an internal cross-sectional view of a rectifier heat sink;

[0014] Figure 4 A schematic diagram of a heat sink shell of a rectifier heat sink;

[0015] Figure 5 A schematic diagram of a heat conducting plate of a rectifier heat dissipation device.

[0016] Explanation of the reference numerals: 1. Shell; 101. Air outlet fan; 102. Air inlet fan; 2. Water cooling assembly; 201. Heat exchanger; 202. Water tank; 203. Water pump; 204. Cooling pipe; 2041. Water inlet; 2042. Water outlet; 3. Heat sink; 301. Heat sink; 302. First heat conducting sheet; 4. Heat conducting plate; 401. Second heat conducting sheet; 402. Bending portion; 5. Rectifier; 6. Spring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution, purpose and effect of the utility model clear and easy to understand, the preferred embodiments of the utility model will be described in detail below with reference to the accompanying drawings so that technicians can understand.

[0018] It should be noted that in the description of the present utility model, unless otherwise clearly defined or limited, the terms “installed”, “connected”, “connected”, “connected”, etc. should be understood in a broad sense, that is, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0019] In the accompanying drawings, direction A is the air convection direction, and direction B is the flow direction of cooling water.

[0020] See also Figures 1 to 5 It is a heat dissipation device for a rectifier 5, which is used to install the rectifier 5 inside it, so that the heat generated by the rectifier 5 can be effectively dissipated, avoiding the rectifier 5 from stopping due to excessive operating temperature.

[0021] like Figures 1 to 3 The heat dissipation device of the rectifier 5 shown in the figure mainly comprises a housing 1 and a rectifier 5 installed in the housing 1. A through hole (not shown in the figure) is provided at the bottom of the housing 1 at the installation position of the rectifier 5, for passing the power supply wire and the output wire of the rectifier 5. A heat dissipation shell 3 with upper and lower openings is provided on the outside of the rectifier 5, and the heat dissipation shell 3 is fixedly connected to the housing 1 by bolts. A heat conduction plate 4 is provided on the inside of the heat dissipation shell 3 for contacting the rectifier 5 for heat conduction, as shown in FIG. Figures 3 to 5 The heat dissipation shell 3 and the heat conducting plate 4 are respectively provided with a first heat conducting sheet 302 and a second heat conducting sheet 401 for heat conduction. The heat dissipation shell 3 and the heat conducting plate 4 are slidably connected through the first heat conducting sheet 302 and the second heat conducting sheet 401, so that heat exchange is performed between the heat conducting plate 4 and the heat dissipation shell 3, and the heat of the rectifier 5 is transferred to the heat dissipation shell 3.

[0022] like Figure 3 The heat dissipation shell 3 and the heat conducting plate 4 are also connected by a spring 6, and the heat conducting plate 4 inside the heat dissipation shell 3 is configured as a cavity for installing the rectifier 5. When the rectifier 5 is installed in the cavity, the rectifier 5 can contact the heat conducting plate 4 to squeeze the spring 6, driving the heat conducting plate 4 to slide circumferentially (radially), so that the cavity expands, so that the rectifier 5 can be closely contacted by the heat conducting plate 4, avoiding the slow heat dissipation caused by the poor contact between the heat conducting plate 4 and the rectifier 5, and can effectively improve the heat conduction efficiency of the heat conducting plate 4.

[0023] like Figure 4 The outer wall of the heat dissipation shell 3 shown in the figure is fixedly installed with a heat sink 301 arranged along the gas convection direction in the shell 1. The side 3011 with the largest contact area between the heat sink 301 and the air can be effectively and fully contacted by the convection air. The heat can effectively flow out from the two sides 3011 to the outside of the shell 1 along with the air flow, thereby improving its air-cooling heat dissipation efficiency.

[0024] like Figure 4The heat sink 301 is evenly distributed along the circumference of the rectifier 5, and a cooling pipe 204 spirally arranged along the rectifier 5 is fixedly mounted on the heat sink 301. The water inlet 2041 and the water outlet 2042 of the cooling pipe 204 are respectively connected to the water cooling assembly 2 outside the housing 1. Figure 1 The water cooling assembly 2 shown includes a heat exchanger 201 connected to a water outlet 2042 and a water tank 202 connected to a water inlet 2041. The water tank 202 and the heat exchanger 201 are connected via a water pipe. A water pump 203 for driving water circulation is also provided on the water tank 202. The water in the water tank 202 is driven by the water pump 203. Figure 2 The heat exchanger 201 can be configured as a BB60HL type, etc., and other coolants can be connected externally to exchange the heat brought by the cooling water from the heat sink 301, and the circulating cooling water can be cooled and stored in the water tank 202.

[0025] like Figure 2 The bottom and top of the housing 1 are provided with an air inlet fan 102 and an air outlet fan 101 for circulating air inside and outside the housing 1. The cold air outside the housing 1 is sucked into the housing 1 by the air inlet fan 102, and the cold and hot mixed gas in the housing 1 is sucked out by the air outlet fan 101, so that the air convection direction in the housing 1 flows in the direction A shown in the figure. The convection gas can fully contact the side surface 3011 of the heat sink 301, thereby improving the heat dissipation efficiency.

[0026] like Figure 3 and Figure 5 The upper end of the heat conducting plate 4 is a bent portion 402, so that the heat conducting plate 4 is configured such that the cavity for installing the rectifier 5 is open. When installing the rectifier 5, the lower end of the rectifier 5 is aligned with the open end of the cavity and pressed downward, so that the rectifier 5 is tightly engaged in the cavity by the heat conducting plate 4, thereby improving the installation efficiency of the rectifier 5.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A rectifier heat sink, characterized in that: The invention comprises a housing (1) and a rectifier (5) installed in the housing (1); a heat dissipation housing (3) with upper and lower openings is sleeved on the outer side of the rectifier (5); a heat conduction plate (4) for contacting the rectifier (5) for heat conduction is arranged on the inner side of the heat dissipation housing (3); a first heat conduction sheet (302) and a second heat conduction sheet (401) for heat conduction are arranged on the heat dissipation housing (3) and the heat conduction plate (4) respectively; the heat dissipation housing (3) and the heat conduction plate (4) are slidably connected via the first heat conduction sheet (302) and the second heat conduction sheet (401); the heat dissipation housing (3) and the heat conduction plate (4) are also connected via a spring (6) so that the rectifier (5) is in close contact with the heat conduction plate (4); The outer wall of the heat dissipation shell (3) is fixedly mounted with heat dissipation fins (301) arranged along the convection direction of the gas in the shell (1); the heat dissipation fins (301) are evenly distributed along the circumference of the rectifier (5); a cooling pipe (204) is fixedly mounted on the heat dissipation fins (301) and is spirally arranged along the rectifier (5); a water inlet (2041) and a water outlet (2042) of the cooling pipe (204) are respectively connected to the water cooling assembly (2) outside the shell (1); An air inlet fan (102) and an air outlet fan (101) for circulating convection of air in the shell (1) are arranged at the bottom and top of the shell (1).

2. The rectifier heat sink according to claim 1, characterized in that: The water cooling component (2) comprises a heat exchanger (201) connected to a water outlet (2042) and a water tank (202) connected to a water inlet (2041); the water tank (202) and the heat exchanger (201) are connected via a water pipe; and a water pump (203) for driving water circulation is also provided on the water tank (202).

3. The rectifier heat sink according to claim 1 or 2, characterized in that: The upper end of the heat conducting plate (4) is a bent portion (402), so that the heat conducting plate (4) is configured such that the cavity for mounting the rectifier (5) is open.

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