CN201846538U - Radiating case - Google Patents

Abstract

The utility model discloses a cooling case, which comprises a side plate, a top plate and a bottom plate. The case is provided with a partition separating high-heat generating devices and low-heat generating devices. One side of the partition corresponds to the case of high-heat generating devices. A first air inlet and an air outlet are arranged on the wall, and a second air inlet is correspondingly arranged on the wall of the chassis corresponding to the low-heating device on the other side of the partition, and a ventilation hole is opened on the partition near the air outlet. The utility model provides a cooling case with simple structure, energy saving, independent heat dissipation of high-heating components and low-heating components, saving space in the cooling case and area occupation of the case, and rationally distributing air volume in two air ducts.

Description

A heat sink

technical field

The utility model relates to a cabinet, in particular to a cooling cabinet.

Background technique

With the continuous development of electronic science and technology, electronic products are used in various fields of society. In electronic products, power modules are more and more widely used, and the power density is also higher and higher. Therefore, the heat dissipation requirements of power modules are also gradually increasing. Especially for modules with high power, these modules contain electrolytic capacitors, IGBTs, diodes and other devices. If these devices work in a high temperature environment for a long time, the service life of electrolytic capacitors will be greatly reduced, and even the electrolytic capacitors will dry out. In addition, IGBT and diodes will also fail due to high temperature. Therefore, good heat dissipation can not only prolong the service life of the module and its surrounding components, but also make the entire product radiate evenly and reduce the risk of accidents. occur.

At present, there are several methods for heat dissipation of power modules: The first method is that the high-heat generating devices and low-heat generating Designing a separate air duct requires the space inside the cooling case and the area of the side panel of the cooling case, making it impossible to arrange other components. The second method is to make the air intake pass through the low-heating device first and then through the high-heating device through the layout. This method has only one air duct. Devices can be satisfied with a low wind speed, resulting in energy waste, and the heat of low-heating devices is carried by the wind to the devices behind, which will also heat the devices behind, the cooling effect is not ideal, and energy consumption will be increased accordingly.

Utility model content

The technical problem to be solved by the utility model is to solve the defect that two independent air inlets and outlets and two independent air ducts are set in the prior art to occupy the inner space of the heat dissipation chassis and the side plate area of the heat dissipation chassis, which is not conducive to the arrangement of devices, and to set a The defect that the air duct needs to increase the wind speed and increase energy consumption provides a simple structure, saves energy, realizes independent heat dissipation of high-heating components and low-heating components at the same time, saves space in the cooling case and occupies the area of the case, and reasonably distributes the air volume in the two air ducts cooling case.

The technical solution adopted by the utility model to solve the technical problem is: a heat dissipation cabinet, including a side plate, a top plate and a bottom plate, the partition plate separating the high-heat generating device and the low-heat generating device is arranged in the cabinet. A first air inlet and an air outlet are provided on the chassis wall corresponding to high-heating components on one side of the board, and a second air inlet is provided on the chassis wall corresponding to low-heating components on the other side of the partition. There are ventilation holes.

The first air inlet and the second air inlet are on the same side panel of the chassis.

The first air inlet and the air outlet are respectively located on both sides of the high heat generating device in the chassis, and the air duct formed between the first air inlet and the air outlet is the installation space of the high heat generating device.

The second air inlet and the ventilation hole are respectively located on both sides of the low-heat generating device in the chassis, and the air duct formed between the second air inlet and the ventilation hole is the installation space of the low-heat generating device.

The first air inlet is an unshielded air inlet tunnel opened on the side panel of the case facing the high heat generating device.

The air outlet is arranged on the wall of the cabinet facing the first air inlet, and the air outlet is composed of a plurality of air outlet holes arranged at intervals.

The air outlet holes are long holes arranged side by side at intervals.

The second air inlet is a group of ventilation holes arranged on the side plate of the chassis.

The ventilation holes are long holes arranged side by side at intervals.

The ventilation holes are long holes arranged side by side at intervals.

The utility model adopts a partition board in the case to separate the high-heat generating device and the low-heat generating device, so that the two air passages are independent, and two air inlets are separately arranged on the case to dissipate heat for the high-heat generating device and the low-heat generating device respectively. , and there is only one air outlet, but there is a ventilation hole on the partition near the air outlet, and the heat generated by the low-heating device is sent out to the air outlet through the air outlet, that is, the two air ducts are combined at the air outlet, without corresponding Air outlets are set up for low-heating components, which saves space and area in the chassis, and can be used to arrange other components. Since the ventilation holes are set close to the air outlets, the hot air in the air duct where the low-heating components are located will not return to the airflow where the high-heating components are located. In the channel, the heat will not reheat other devices, and will not affect the heat dissipation of high-heating devices, so the energy consumption is low, and energy is saved accordingly. In addition, since the combination of air ducts is realized through the ventilation holes on the partition, the ventilation holes correspondingly increase the wind resistance in the air ducts of low-heat generating devices, so that more air enters the high-heat generating devices for heat dissipation, and the air volume in the two air ducts is reasonably distributed. The overall heat dissipation effect is improved, and energy waste is avoided.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the perspective view of the appearance of the utility model embodiment;

Fig. 2 is a schematic structural view of an embodiment of the utility model.

Detailed ways

The utility model will be described in detail below by taking a case of a power module as an example.

As shown in Figures 1 and 2, a heat dissipation cabinet includes a side plate, a top plate 11 and a bottom plate 13, and the side plate includes a first side plate 10, a second side plate (not shown), and a third side plate 12. The fourth side plate 14 is used to dissipate heat from the whole machine by drawing air. The cabinet is provided with a partition 4 that separates the high-heat generating device and the low-heat generating device, and a first air inlet 1 and an air outlet 3 are arranged on the cabinet wall surface corresponding to the high-heat generating device on one side of the partition 4. 4 A second air inlet 2 is provided on the wall of the chassis corresponding to the low-heat generating device on the other side, and a ventilation hole 5 is opened on the partition 4 near the air outlet 3. In this embodiment, the high heat generation device of the power module is the IGBT (not shown in the figure) and the diode (not shown in the figure) arranged on the upper part of the chassis, and the low heat generation device is the electrolytic capacitor 6 arranged on the lower part of the chassis, so through The partition 4 separates the IGBT, the diode and the electrolytic capacitor 6, and the partition 4 is arranged horizontally or inclined to separate the chassis into two spaces, and the two spaces are only communicated through the ventilation holes 5 provided on the partition 4. In this embodiment The partitions are set horizontally with 4 levels. The IGBT is connected to a heat sink 7 for dissipating heat.

In addition to the above-mentioned structure in which the high-heat-generating components are arranged in the upper part of the chassis and the low-heat-generating components are arranged in the lower part of the chassis, the high-heat-generating components and low-heat-generating components can be exchanged, and the partition is set horizontally or obliquely between them; or the high-heat-generating components and the low-heat-generating device are respectively arranged on the left and right in the case, and the partition is arranged vertically or obliquely between the two. At the same time, each tuyere is also adjusted accordingly according to the arrangement of the heating device to ensure sufficient heat dissipation capacity of the heating device.

The first air inlet 1 and the second air inlet 2 are arranged on the same side panel of the cabinet, that is, the first side panel 10 , and are arranged on both sides of the partition 4 . The first air inlet 1 and the second air inlet 2 can also be arranged on any side plate of the chassis, and the setting basis is based on the actual location of high-heating components. The first air inlet 1 and the air outlet 3 can be arranged at intervals at any position of the chassis corresponding to the space where the high heat generating device is located, but in order to obtain higher heat dissipation efficiency and avoid energy waste, the first air inlet 1 and the air outlet 3 should be spaced apart Farther away, the flowing wind flows through all the high-heating components as much as possible. Therefore, it is preferable that the first air inlet 1 and the air outlet 3 are respectively located on both sides of the high-heating components in the chassis, between the first air inlet 1 and the air outlet 3. The air duct formed between them is the setting space for high-heat-generating devices. The high-heat-generating devices are located in the flowing wind, which can take away the heat in time and improve the heat dissipation efficiency. In this embodiment, the first side plate 10 provided with the first air inlet 1 and the second air inlet 2 is the front panel of the chassis, and the heat generated by the IGBT and the diode is more, so that the radiator 7 needs to emit more heat correspondingly. , then it is required that the air volume entering the air duct should be large and the wind speed should be fast. Therefore, the first air inlet 1 is an unobstructed air inlet tunnel facing the radiator 7 opened on the first side plate 10 of the chassis. The area of the wind tunnel is large, the air intake volume is relatively high, and the wind inlet tunnel is a hole without any shelter, so the wind speed is relatively high. In addition to the above-mentioned air inlet tunnel, the first air inlet can also have other shapes, numbers and structures, as long as the air inlet can meet the air volume required for heat dissipation of high-heat-generating devices.

The air outlet 3 is arranged on the cabinet wall surface opposite to the first air inlet 1, that is, on the side plate opposite to the first air inlet 1, that is, on the third side plate 12, where the air outlet 3 of this embodiment is located on the third side plate 12 is the rear panel of the cabinet. The shape, quantity and structure of the air outlet 3 can also be changed according to the actual situation, for example: the shape is circular, polygonal, irregular, etc. The structure can be a direct opening, or a wind deflector can be arranged at the opening , shading nets, etc., but the air outlet 3 must meet the air flow required for heat dissipation of the heating element. In this embodiment, the air outlet 3 is composed of a plurality of air outlet holes arranged at intervals, and the air outlet holes are horizontal long holes arranged side by side at intervals. The air outlets are arranged at intervals, which increases the wind resistance of the air inlet compared with the first air inlet 1, thereby adjusting the air volume entering the low heat generating device to be less than that entering the high heat generating device, and reasonably distributing the air volume to meet the requirements of unbalanced heat dissipation.

The second air inlet 2 and the ventilation hole 5 can be arranged at intervals at any position of the chassis corresponding to the space where the low-heat generating device is located, but in order to obtain higher heat dissipation efficiency and avoid energy waste, the second air inlet 2 and the ventilation hole 5 should be spaced apart. Farther away, the flowing wind flows through all low-heat generating devices as much as possible. Therefore, preferably the second air inlet 2 and the ventilation hole 5 are respectively located on both sides of the low-heat generating device in the chassis, and at the second air inlet 2 and the ventilation hole 5 The air duct formed between them is the setting space for low heat generating devices. The shape, quantity and structure of the second air inlet 2 can be changed according to the actual situation, for example: the shape is circular, polygonal, irregular, etc., and the structure can be a direct opening, a wind deflector or a screen at the opening, etc. , as long as the second air inlet 2 can meet the air intake required for heat dissipation of the low heat generating device. In this embodiment, the second air inlet 2 is a group of ventilation holes provided on the first side plate 10 of the chassis. The ventilation holes are long holes arranged side by side at intervals, and two rows of ventilation holes are arranged side by side.

Ventilation holes 5 are provided on the partition plate 4 close to the air outlet 3, and the air duct where the low-heat generating device is located is communicated with the air outlet 3, and the wind with heat is drawn out from the air outlet 3. The shape, quantity and structure of the ventilation hole 5 are not limited, for example: the shape is circular, polygonal, irregular shape, etc., and the structure can be provided with a wind deflector, a screen, etc. at the opening, as long as the ventilation hole 5 It is sufficient to meet the air flow required for heat dissipation of the low-heat-generating device. In this embodiment, the ventilation holes 5 are long holes arranged side by side at intervals. In this embodiment, the low heat generation device is an electrolytic capacitor 6, and the air outlet 5 of the electrolytic capacitor 6 is shared with the air outlet 3 of the radiator 7 through the air vent 5 opened by the middle partition plate 4. Due to the small heat dissipation of the capacitor device, a small air flow can meet the heat dissipation requirements. After passing through the ventilation holes 5 on the partition 4, the wind resistance passing through the air duct where the electrolytic capacitor 6 is located is relatively large. Under the premise that the total air volume remains unchanged , the air flow through the high heat generating device--the radiator 7 becomes larger, therefore, the setting of the partition plate 4 and the ventilation hole 5 reasonably distributes the air flow, and improves the heat dissipation effect of the high heat generating device. Moreover, this design saves the space behind the air outlet of the low-heating device on the rear panel in the conventional design, and this space can be used to set devices such as bypass units, and the setting of the bypass unit devices no longer blocks the air outlet of the electrolytic capacitor 6. road.

Claims (10)

1. cooling cabinet, comprise side plate, top board and base plate, it is characterized in that, be provided with in the described cabinet high heater members and the separated dividing plate of low heater members, on the cabinet wall of the corresponding high heater members of dividing plate one side, first air inlet and air outlet are set, on the cabinet wall of the corresponding low heater members of dividing plate opposite side, second air inlet is set, is having ventilation hole near on the dividing plate of air outlet.

2. cooling cabinet according to claim 1 is characterized in that, described first air inlet and second air inlet are separately positioned on the same side plate of cabinet.

3. cooling cabinet according to claim 2 is characterized in that, described first air inlet and air outlet lay respectively at the both sides of high heater members in the cabinet, and the air channel that forms between first air inlet and the air outlet is the space that is provided with of high heater members.

4. cooling cabinet according to claim 2 is characterized in that, described second air inlet and ventilation hole lay respectively at the both sides of low heater members in the cabinet, and the air channel that forms between second air inlet and ventilation hole is the space that is provided with of low heater members.

5. according to any described cooling cabinet of claim 1～4, it is characterized in that the unscreened air intake hole over against high heater members of described first air inlet on cabinet side board, offering.

6. according to any described cooling cabinet of claim 1～4, it is characterized in that described air outlet is made up of a plurality of exhaust vents that are provided with at interval.

7. cooling cabinet according to claim 6 is characterized in that, the slotted hole of described exhaust vent for being arranged side by side at interval.

8. according to any described cooling cabinet of claim 1～4, it is characterized in that described second air inlet is the one group of air-permeating hole that is provided with on cabinet side board.

9. cooling cabinet according to claim 8 is characterized in that, the slotted hole of described air-permeating hole for being arranged side by side at interval.

10. according to any described cooling cabinet of claim 1～4, it is characterized in that the slotted hole of described ventilation hole for being arranged side by side at interval.

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