RU2752699C1 - Housing of radio-electronic unit with cooling channel - Google Patents

Abstract

FIELD: electrical engineering.SUBSTANCE: invention relates to the field of electrical engineering for solving problems of heat removal from radioelements placed on the housing. The housing of the radio-electronic unit with a cooling channel contains a base (1) with a cavity (2) and holes (4), (5) for supplying and removing the coolant, and the contour of the inner side of the base (1) is made with a bevel (6). The removable cover (3) is fixed on the base and made with a projection (7). The cooling channel is formed by the mentioned base (1) with the cavity (2) and the cover (3), and the cover (3) is installed by the protrusion (7) into the cavity (2) of the base (1), forming a gap between the protrusion (7) and the bevel (6), in which the sealing gasket (10) is installed. On the ledge (7) of the cover (3) and/or inside the cavity (2) of the base (1) there are heat-removing elements (11).EFFECT: invention increases the level of heat removal of the housing of the radio-electronic unit.3 cl, 2 dwg

Description

The proposed invention relates to radio electronics and can be used in blocks of radio electronic equipment for solving problems of heat removal from radioelements placed on the body.

Known "Cooling housing unit REA" [RU 142996, publ. 07/10/2014, IPC N05K 7/20], containing a panel with distribution and collector channels for the coolant, fittings are installed at the inlet and outlet of the collector channels. Through windows are made in the panel, the distribution and collector channels with the cooling liquid are formed straight, mutually parallel and mutually perpendicular, and plugs are installed in the distribution and collector channels at the edges of the panel, and the diameter of the collector channels is larger than the diameter of the distribution channels.

It is known "The basis for the electronic unit" [RU 170939, publ. 05/16/2017, IPC Н02К 7/20], containing a panel with a channel for coolant, inlet and outlet for its supply and drain. A heat sink is installed in the channel, made in the form of a plate with a set of heat sink elements on the inner side. The panel is made with stepped samples, on the outer and inner sides of which there are holes and bosses for fastening fuel-generating radio-electronic elements.

The disadvantage of the known devices is the low level of heat removal.

The closest in technical essence is "Device for cooling power electronic modules" [RU 2523022, publ. 07/20/2014, IPC H04L 23/36], made in the form of a hollow body made of heat-conducting material, having holes for supplying and removing liquid refrigerant, inside which there is a perforated element for creating jets of refrigerant to the cooled surface. The body is made in the form of a base with a rectangular cavity and a cover. Holes for supplying and removing refrigerant are located at the bottom of the cavity near its two opposite walls, while the perforated element is made in the form of a rectangular perforated plate parallel to the bottom of the base and dividing the cavity into two chambers. A perforated plate is installed with indents from the edges of the cavity on the side of the coolant inlet and outlet holes, and along the edges of the plate facing these zones, partitions are installed - one between the plate and the cover, the other between the plate and the bottom of the cavity, two other edges of the plate, as well as the edges partitions, placed close to the walls of the cavity.

The disadvantages of these solutions are a low level of heat removal and a low level of functionality.

The technical result of the proposed invention is to increase the level of heat removal and expand the functionality of the body of the radio-electronic unit with a cooling channel.

The essence of the proposed housing of the radio-electronic unit with a cooling channel lies in the fact that it contains a base with a cavity and holes for supplying and removing the coolant, a removable cover fixed on the base, and a sealing gasket.

New in the proposed invention is that the cooling channel is formed by the mentioned base with a cavity and a lid, the lid being made with a protrusion, and the contour of the inner side of the base with a bevel. The cover is installed with a protrusion into the cavity of the base, forming a gap between the protrusion and the bevel, in which a sealing gasket is installed. Heat removal elements are located on the lid protrusion and / or inside the base cavity. Heat-removing elements are made curly. The cover is fixed to the base with screws.

FIG. 1 shows a general view of the housing of the radio-electronic unit with a cooling channel in an exploded view.

FIG. 2 shows a cross-section of the housing of the radio-electronic unit with a cooling channel in three variants of the arrangement of heat-removing elements.

The housing of the radio-electronic unit with a cooling channel consists of a base (1), in which a cavity (2) is made, and a cover (3), which form a cooling channel. On the opposite sides of the base (1), an inlet (4) and an outlet (5) are made for supplying and removing the coolant. A bevel (6) is made along the contour of the cavity (2) of the base (1), and the cover (3) - with a ledge (7). On the base (1), the cover (3) is fixed with screws (8), so that the projection (7) is installed in the cavity (2), and a sealing gasket ( 10).

FIG. 2 shows three options for the arrangement of figured heat-removing elements: figured heat-removing elements (11) are made on the ledge (7) (Fig.2a), in the cavity (2) of the base (1) (Fig.2b), or on the ledge (7) and in cavity (2) (Fig. 2c).

The housing of the radio-electronic unit with a cooling channel is made of a heat-conducting material, for example, aluminum alloys (AK4-1, D16, V95, etc.), by machining, for example by milling.

The body of the radio-electronic unit with a cooling channel is assembled and used as follows. A sealing gasket (10), made, for example, of rubber, is placed on the bevel (6) of the base (1), and then the cover (3) is installed, so that its protrusion (7) goes into the cavity (2). Thus, the spacer (10) is located in the gap (9) between the projection (7) and the bevel (6) of the base (1). Then the screws (8) are tightened and the cover (3) with the protrusion (7) seals against the base (1) through the gasket (10). This collapsible design allows to make heat-removing elements (11) inside the cooling channel and ensure its tightness.

Heating radioelements, for example, transceiver modules of the antenna array, are located on the side of the cover (3) or the bottom surface of the base (1), depending on the location of the heat removal elements (11). So, when performing heat removal elements (11) on the ledge (7) of the cover (3) (Fig. 2a), the radioelements are placed on the cover (3). When performing heat removal elements (11) in the cavity (2) of the base (1) (Fig. 2b), the radioelements are placed on the lower surface of the base (1). In the case of performing heat-removing elements (11) on the ledge (7) of the cover (3) and inside the cavity (2) of the base (1) (Fig.2c), radioelements are placed both from the side of the cover (3) and from the side of the lower surface of the base (1) ...

A liquid refrigerant is fed into the inlet (4) under pressure, for example LENA coolant from a liquid cooling system. The coolant, passing through the cooling channel, washes not only the walls of the cavity (2), but also the figured heat removal elements (11) located in it, regardless of their version (inside the cavity and / or on the lid protrusion), providing a high level of heat removal from heating radioelements, and then through the outlet (5) returns to the liquid cooling system.

Thus, the implementation of heat-removing elements inside the detachable structure of the housing of the radio-electronic unit with a cooling channel increases the level of heat removal and thereby expands its functionality.

Claims (3)

1. The body of the radio-electronic unit with a cooling channel, containing a base with a cavity and holes for supplying and removing a coolant, a removable cover fixed on the base, and a sealing gasket, characterized in that the cooling channel is formed by said base with a cavity and a cover, and the cover is made with with a projection, and the contour of the inner side of the base is with a bevel, and the cover is installed with a projection into the cavity of the base, forming a gap between the projection and the bevel, in which a sealing gasket is installed, in addition, heat removal elements are located on the projection of the cover and / or inside the cavity of the base. 2. The body of the radio-electronic unit with a cooling channel according to claim 1, characterized in that the heat-removing elements are shaped. 3. The body of the radio-electronic unit with a cooling channel according to claim 1, characterized in that the cover is fixed on the base with screws.

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