Air-cooled subrack capable of improving electromagnetic shielding effect

Abstract

The utility model relates to an air-cooled plug-in box capable of improving an electromagnetic shielding effect, and solves the problems that an existing plug-in box adopts an air-cooled heat dissipation mode, dust is easy to accumulate in the plug-in box after long-time operation, the overall electromagnetic shielding effect of the plug-in box is reduced, and the space for installing a functional module in the plug-in box is extruded. The heat dissipation device comprises a box body and heat dissipation plates arranged in the box body, the heat dissipation plates comprise an upper heat dissipation plate and a lower heat dissipation plate, gaps exist between the upper heat dissipation plate and an upper cover plate and between the lower heat dissipation plate and a lower cover plate respectively, the gaps form a first heat dissipation channel and a second heat dissipation channel, the right end face of the upper heat dissipation plate and the right end face of the lower heat dissipation plate are connected with a right panel, and gaps exist between the right panel and the upper cover plate and between the right panel and the lower cover plate. The air guide part is arranged relative to the fan on the left panel and guides cold air into the two heat dissipation channels, the inner side face of the air guide part is connected with the left end face of the upper heat dissipation plate and the left end face of the lower heat dissipation plate, the multiple slot plates are arranged between the upper heat dissipation plate and the lower heat dissipation plate, and a groove between a first installation plate and a second installation plate of the air guide part can be used for installing a 3U module.

Description

Technical Field

[0001] The utility model relates to a plug-in box, in particular to an air-cooled plug-in box with improved electromagnetic shielding effect. Background Art

[0002] In the field of electronic industrial products, plug-in boxes are often used to install various functional modules. These functional modules will generate a lot of heat when running. If this heat is not discharged from the plug-in box in time, it will affect the normal operation of the functional modules. In the prior art, the mainstream heat dissipation method of the plug-in box is air cooling. In order to ensure that each functional module can be blown by the airflow generated by the cooling fan, the plug-in box is usually air-cooled up and down or front and back, that is, the fan is installed on the side wall or top surface of the plug-in box, and the high-speed airflow generated by the fan flows vertically or horizontally between the functional modules to take away the heat. Although this heat dissipation method has a good heat dissipation effect, the high-speed airflow generated by the fan directly contacts the surface of the functional module. When the fan is running, it is easy to bring impurities such as smoke and dust from the outside into the plug-in box. After long-term operation, dust is easily accumulated inside the plug-in box, which will reduce the overall electromagnetic shielding effect of the plug-in box and cause harm to the functional module. In addition, in order to ensure that the air circulation channel is unobstructed, the existing air cooling method will also occupy additional internal space of the plug-in box, squeezing the space for installing functional modules in the plug-in box. Utility Model Content

[0003] The utility model aims to solve the problem that the existing plug-in box adopts air-cooling heat dissipation mode, dust is easily accumulated inside after long-term operation, reducing the overall electromagnetic shielding effect of the plug-in box, and squeezing the space for installing functional modules in the plug-in box, and provides an air-cooled plug-in box with improved electromagnetic shielding effect.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An air-cooled plug-in box for improving electromagnetic shielding effect, which is special in that it includes a box body, a fan, an air guide, a heat sink and a slot plate;

[0006] The box body comprises a rectangular box body surrounded by an upper cover plate, a lower cover plate, a front panel, a rear panel, a left panel and a right panel, and there are gaps between the right panel and the upper cover plate and the lower cover plate; the fan is arranged on the left panel;

[0007] The heat dissipation plate is arranged in the box body, including an upper heat dissipation plate arranged near the upper cover plate and a lower heat dissipation plate arranged near the lower cover plate, the front and rear sides of the upper heat dissipation plate and the lower heat dissipation plate are respectively connected to the front panel and the rear panel, and the right end surfaces of the upper heat dissipation plate and the lower heat dissipation plate are respectively connected to the right panel; there is a gap between the upper heat dissipation plate and the upper cover plate, and the gap constitutes a first heat dissipation channel, and there is a gap between the lower heat dissipation plate and the lower cover plate, and the gap constitutes a second heat dissipation channel;

[0008] The air guide is arranged relative to the fan and is located on the inner side of the fan. The air guide comprises a guide plate for guiding the cold air blown in by the fan to the first heat dissipation channel and the second heat dissipation channel respectively, and a first mounting plate and a second mounting plate arranged on the inner side of the guide plate and connected to the upper heat dissipation plate and the lower heat dissipation plate respectively. The groove between the first mounting plate and the second mounting plate can be used to install the 3U module. The front and rear ends of the air guide are connected to the front panel and the rear panel respectively.

[0009] There are multiple slot boards, and the upper and lower sides of each slot board are respectively connected to the upper heat sink and the lower heat sink, and the slot board is used to fix the 3U module.

[0010] Furthermore, the guide plate, the first mounting plate and the second mounting plate are integrally arranged; the guide plate is composed of an upper guide plate and a lower guide plate, the upper guide plate and the lower guide plate are symmetrical in the upper and lower directions, and the top angle formed by the two is toward the fan side, or the guide plate is composed of a streamlined curved surface that is symmetrical in the upper and lower directions and faces the fan side; the midline of the guide plate along the horizontal direction and the midline of the fan along the horizontal direction are located in the same plane.

[0011] Furthermore, the front and rear sides of the slot board are connected to the front panel and the rear panel respectively.

[0012] Furthermore, heat dissipation fins are arranged on the outer sides of the upper heat dissipation plate and the lower heat dissipation plate.

[0013] Furthermore, the front panel includes a button panel for installing operation buttons and a motherboard connected to the button panel through a bracket, the motherboard is located between the button panel and the rear panel, the front sides of the upper heat sink, the lower heat sink, the air guide and the slot board are all connected to the motherboard; the front sides of the upper cover plate, the lower cover plate, the left panel and the right panel are all connected to the button panel.

[0014] Furthermore, the upper heat sink is an aluminum alloy upper heat sink, and the lower heat sink is an aluminum alloy lower heat sink.

[0015] Furthermore, the left panel and / or the right panel is provided with a heat dissipation window corresponding to the gap between the button panel and the motherboard; or, the left panel and the right panel correspond to the gap between the button panel and the motherboard, an auxiliary heat dissipation fan is provided on one side, and a heat dissipation window is provided on the other side.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The utility model provides an air-cooled plug-in box for improving electromagnetic shielding effect, comprising a box body, an upper heat sink and a lower heat sink are arranged in the box body, the two sides of the upper heat sink and the lower heat sink are respectively connected to the front panel and the rear panel, and the right end faces of the upper heat sink and the lower heat sink are respectively connected to the right panel; there is a gap between the upper heat sink and the upper cover plate, the gap constitutes a first heat dissipation channel, and there is a gap between the lower heat sink and the lower cover plate, the gap constitutes a second heat dissipation channel; an air guide for guiding air is arranged relative to the fan, and the inner side of the air guide is respectively connected to the left end faces of the upper heat sink and the lower heat sink, and the two ends of the air guide are respectively connected to the front panel and the rear panel, and the air guide can guide the cold air blown in by the fan to the first heat dissipation channel and the second heat dissipation channel respectively. In the heat channel, multiple slot plates for fixing 3U modules are arranged between the upper heat sink and the lower heat sink, so that the heat dissipation channel and the 3U module are separated by the upper and lower heat sinks, and the cold air blown in by the fan will not directly contact the 3U module, but will flow through the first and second heat dissipation channels. The heat emitted by the 3U module is first transferred to the upper and lower heat sinks, and then the heat is taken away by the cold air in the first and second heat dissipation channels. There will be no dust accumulation after long-term use, which improves the electromagnetic shielding capability of the plug-in box. The first mounting plate and the second mounting plate are arranged at the upper and lower ends of the inner side of the guide plate, and the groove between the first mounting plate and the second mounting plate can be used to install the 3U module, which utilizes the space provided by the air guide and improves the space utilization rate.

[0018] (2) The utility model provides an air-cooled plug-in box with improved electromagnetic shielding effect. Heat dissipation fins are arranged on the outer sides of the upper heat sink and the lower heat sink, which can increase the heat dissipation area and improve the heat dissipation efficiency.

[0019] (3) The utility model provides an air-cooled plug-in box with improved electromagnetic shielding effect, in which the upper and lower sides of the slot board are respectively connected to the inner side surfaces of the upper and lower heat sinks, so that the heat generated by the 3U module can be quickly transferred to the two heat sinks, thereby improving the heat dissipation efficiency.

[0020] (4) The utility model provides an air-cooled plug-in box for improving electromagnetic shielding effect, in which a heat dissipation window is provided on the left panel or / and the right panel corresponding to the gap between the button panel and the motherboard; or, the left panel and the right panel correspond to the gap between the button panel and the motherboard, an auxiliary heat dissipation fan is provided on one side, and a heat dissipation window is provided on the other side. With this arrangement, the heat transferred from the slot board to the motherboard can be discharged from the chassis through the heat dissipation window, further improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An exploded view of an embodiment of an air-cooled plug-in box for improving electromagnetic shielding effect according to the utility model;

[0022] Figure 2It is a cross-sectional view of an embodiment of the utility model in use.

[0023] The following are the descriptions of the reference numerals:

[0024] 1-upper cover, 2-lower cover, 3-left panel, 4-right panel, 5-front panel, 51-button panel,

[0025] 52-motherboard; 6-rear panel, 7-upper heat sink, 8-lower heat sink, 9-fan, 10-air guide, 101-guide plate, 102-first mounting plate, 103-second mounting plate; 11-slot board, 12-heat sink fins, 13-3U module, 14-first heat dissipation channel, 15-second heat dissipation channel, 16-heat dissipation window. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Reference Figure 1-Figure 2 The utility model provides an air-cooled plug-in box for improving electromagnetic shielding effect, including a box body, wherein the box body includes a rectangular box body surrounded by an upper cover plate 1, a lower cover plate 2, a front panel 5, a rear panel 6, a left panel 3 and a right panel 4, and there are gaps between the right panel 4 and the upper cover plate 1 and the lower cover plate 2. A fan 9 is arranged on the left panel 3, and an air guide 10 is arranged relative to the fan 9, and the air guide 10 is located on the inner side of the fan 9.

[0028] An upper heat sink 7 and a lower heat sink 8 are arranged in the box body, both of which are made of aluminum alloy and have good thermal conductivity. The upper heat sink 7 is arranged close to the upper cover plate 1, and the lower heat sink 8 is arranged close to the lower cover plate 2, and the rear sides of the upper heat sink 7 and the lower heat sink 8 are connected to the rear panel 6. The right end surfaces of the upper heat sink 7 and the lower heat sink 8 are respectively connected to the right panel 4, and the gap between the upper heat sink 7 and the upper cover plate 1 constitutes a first heat dissipation channel 14, and the gap between the lower heat sink 8 and the lower cover plate 2 constitutes a second heat dissipation channel 15.

[0029] like Figure 1 As shown, four slot plates 11 for fixing the 3U module 13 are arranged between the upper heat sink 7 and the lower heat sink 8, the upper side of the slot plate 11 is connected to the inner side of the upper heat sink 7, the lower side is connected to the inner side of the lower heat sink 8, and the rear side of the slot plate 11 is connected to the rear panel 6. Because the slot plate 11 is directly connected to the upper heat sink 7 and the lower heat sink 8, when the 3U module 13 dissipates heat during operation, the heat can be directly transferred to the upper heat sink 7 and the lower heat sink 8 through the slot plate 11. In order to further improve the heat dissipation efficiency, heat dissipation fins 12 are arranged on the outer sides of the upper heat sink 7 and the lower heat sink 8.

[0030] The front panel 5 mainly integrates various operation buttons of the plug-in box, but other components inside the plug-in box must be connected to the front panel 5 for fixation. In order to prevent the operation buttons from interfering with other components inside the plug-in box, the front panel 5 is composed of two parts, including a button panel 51 for installing operation buttons and a motherboard 52 arranged between the button panel 51 and the rear panel 6 and connected to the button panel through a bracket. The front sides of the upper heat sink 7, the lower heat sink 8, the air guide 10 and the slot board 11 are all connected to the motherboard 52, and the rear sides of the four are all connected to the rear panel 6; the front sides of the upper cover plate 1, the lower cover plate 2, the left panel 3 and the right panel 4 are all connected to the button panel 51, and the rear sides are all connected to the rear panel 6.

[0031] In this way, the front panel 5 is divided into two layers, the button panel 51 is used to install the operation button, and the motherboard 52 is used to provide a fixed installation position for other components. There is no need to install buttons on the motherboard 52, and there is no need to open holes. In this way, the sealing effect of the motherboard 52 is better, and the 3U module 13 can be better isolated from the outside. There is a gap between the button panel 51 and the motherboard 52. In this embodiment, a heat dissipation window 16 is set on the left panel 3 corresponding to the gap, so that the heat of the 3U module 13 can be transferred to the motherboard 52 and discharged through the heat dissipation window 16. Of course, in other embodiments, a heat dissipation window 16 can also be set on the right panel 4 corresponding to the gap between the button panel 51 and the motherboard 52, or the left panel 3 and the right panel 4 can both be set corresponding to the gap to improve the heat dissipation effect. In other embodiments, in order to further enhance the heat dissipation effect, an auxiliary heat dissipation fan can be set on the left panel 3 corresponding to the gap position, and a heat dissipation window 16 can be set on the right panel 4 corresponding to the gap position, or the two can be set in an alternating manner.

[0032] In order to guide the cold air blown by the fan 9 to the first heat dissipation channel 14 and the second heat dissipation channel 15 respectively for sufficient heat dissipation, an air guide 10 is further provided, which is arranged relative to the fan 9, such as Figure 2 As shown, the air guide 10 includes a guide plate 101 and a first mounting plate 102 and a second mounting plate 103 respectively arranged at the upper and lower ends of the inner side surface of the guide plate 101. The three are arranged in one body, and the structural strength is higher. The first mounting plate 102 at the upper end is connected to the left end surface of the upper heat dissipation plate 7, and the second mounting plate 103 at the lower end is connected to the left end surface of the lower heat dissipation plate 8, and the front and rear ends of the air guide 10 are respectively connected to the front panel 5 and the rear panel 6. There is a groove between the first mounting plate 102 and the second mounting plate 103, and the groove can be used to install the 3U module 13, which makes convenient use of the space provided by the air guide 10 and improves the space utilization rate.

[0033] In this embodiment, the guide plate 101 is composed of an upper guide plate and a lower guide plate, which are symmetrically arranged up and down, and the vertex formed by the two faces the side of the fan 9, so that the cold air blown in by the fan 9 enters the first heat dissipation channel 14 and the second heat dissipation channel 15 along the upper guide plate and the lower guide plate respectively. In other embodiments, the guide plate 101 can also be composed of a streamlined curved surface facing the side of the fan 9 and symmetrical up and down. The center line of the guide plate 101 along the horizontal direction and the center line of the fan 9 along the horizontal direction are located in the same plane, so that the air volume entering the two heat dissipation channels can be ensured to be basically consistent.

[0034] When in use, the fan 9 is started, and the cold air blown in is introduced into the first heat dissipation channel 14 and the second heat dissipation channel 15 respectively after passing through the air guide 10. At this time, the heat emitted by the working 3U module 13 will be transferred to the upper heat dissipation plate 7 and the lower heat dissipation plate 8 through the slot plate 11 and the air. Because the upper heat dissipation plate 7 and the lower heat dissipation plate 8 are both made of aluminum alloy, their heat conduction efficiency is very high. The cold air will quickly take away the heat when flowing in the first heat dissipation channel 14 and the second heat dissipation channel 15, and the heat dissipation fins 12 increase the heat dissipation area, making the heat dissipation efficiency higher. When dissipating heat, the 3U module 13 is in a confined space, so that the cold air will not directly contact the 3U module 13 when blowing into the plug-in box, and the smoke and dust entering the plug-in box with the cold air will not accumulate, but will be discharged from the two heat dissipation channels, thereby improving the electromagnetic shielding performance of the entire plug-in box and ensuring product stability.

[0035] The embodiments described above are merely descriptions of the specific implementation methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An air-cooled plug-in box for improving electromagnetic shielding effect, characterized in that: It comprises a box body, a fan (9), an air guide (10), a heat sink and a slot plate (11); The box body comprises a rectangular box body surrounded by an upper cover plate (1), a lower cover plate (2), a front panel (5), a rear panel (6), a left panel (3) and a right panel (4); there are gaps between the right panel (4) and the upper cover plate (1) and the lower cover plate (2); the fan (9) is arranged on the left panel (3); The heat dissipation plate is arranged in the box body, and comprises an upper heat dissipation plate (7) arranged near the upper cover plate (1) and a lower heat dissipation plate (8) arranged near the lower cover plate (2); the front and rear sides of the upper heat dissipation plate (7) and the lower heat dissipation plate (8) are respectively connected to the front panel (5) and the rear panel (6), and the right end surfaces of the upper heat dissipation plate (7) and the lower heat dissipation plate (8) are respectively connected to the right panel (4); there is a gap between the upper heat dissipation plate (7) and the upper cover plate (1), and the gap constitutes a first heat dissipation channel (14); there is a gap between the lower heat dissipation plate (8) and the lower cover plate (2), and the gap constitutes a second heat dissipation channel (15); The air guide member (10) is arranged relative to the fan (9) and is located on the inner side of the fan (9). The air guide member (10) comprises a guide plate (101) for guiding the cold air blown in by the fan (9) to the first heat dissipation channel (14) and the second heat dissipation channel (15), respectively, and a first mounting plate (102) and a second mounting plate (103) arranged on the inner side of the guide plate (101) and connected to the upper heat dissipation plate (7) and the lower heat dissipation plate (8), respectively. The groove between the first mounting plate (102) and the second mounting plate (103) can be used to install the 3U module (13). The front and rear ends of the air guide member (10) are respectively connected to the front panel (5) and the rear panel (6); There are a plurality of slot plates (11), and the upper and lower sides of each slot plate (11) are respectively connected to the upper heat dissipation plate (7) and the lower heat dissipation plate (8), and the slot plates (11) are used to fix the 3U module (13).

2. The air-cooled plug-in box for improving electromagnetic shielding effect according to claim 1, characterized in that: The guide plate (101), the first mounting plate (102) and the second mounting plate (103) are integrally arranged; the guide plate (101) is composed of an upper guide plate and a lower guide plate, the upper guide plate and the lower guide plate are symmetrical in the upper and lower directions, and the vertex angle formed by the upper guide plate and the lower guide plate is symmetrical toward the fan (9), or the guide plate (101) is composed of a streamlined curved surface that is symmetrical in the upper and lower directions and faces the fan (9); the center line of the guide plate (101) along the horizontal direction and the center line of the fan (9) along the horizontal direction are located in the same plane.

3. The air-cooled plug-in box for improving electromagnetic shielding effect according to claim 1 or 2, characterized in that: The front and rear sides of the slot plate (11) are respectively connected to the front panel (5) and the rear panel (6).

4. The air-cooled plug-in box for improving electromagnetic shielding effect according to claim 3, characterized in that: Heat dissipation fins (12) are provided on the outer sides of the upper heat dissipation plate (7) and the lower heat dissipation plate (8).

5. The air-cooled plug-in box for improving electromagnetic shielding effect according to claim 4, characterized in that: The front panel (5) comprises a button panel (51) for mounting operation buttons and a motherboard (52) connected to the button panel (51) via a bracket; the motherboard (52) is located between the button panel (51) and the rear panel (6); the front sides of the upper heat sink (7), the lower heat sink (8), the air guide (10) and the slot board (11) are all connected to the motherboard (52); the front sides of the upper cover plate (1), the lower cover plate (2), the left panel (3) and the right panel (4) are all connected to the button panel (51).

6. The air-cooled plug-in box for improving electromagnetic shielding effect according to claim 5, characterized in that: The upper heat sink (7) is an aluminum alloy upper heat sink, and the lower heat sink (8) is an aluminum alloy lower heat sink.

7. The air-cooled plug-in box for improving electromagnetic shielding effect according to claim 6, characterized in that: The left panel (3) or / and the right panel (4) is provided with a heat dissipation window (16) at a position corresponding to the gap between the button panel (51) and the motherboard (52); or, the left panel (3) and the right panel (4) are provided with an auxiliary heat dissipation fan on one side and a heat dissipation window (16) on the other side corresponding to the gap between the button panel (51) and the motherboard (52).

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