CN218866433U

CN218866433U - Heat dissipation case

Info

Publication number: CN218866433U
Application number: CN202320055543.8U
Authority: CN
Inventors: 向东红
Original assignee: Chengdu Qingling Technology Co ltd
Current assignee: Chengdu Qingling Technology Co ltd; Nanjing Paige Measurement And Control Technology Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-04-14
Anticipated expiration: 2033-01-09

Abstract

The utility model relates to a observe and control technical field, the utility model provides a heat dissipation case, which comprises a housin, radiator fan, heat transfer chamber and wind scooper, the first region of casing is provided with radiator fan, the heat transfer chamber sets up the second region in the casing, be used for installing the integrated circuit board, the second region sets up with first region relatively, the top and the bottom of heat transfer chamber all set up to open-type structure, the bottom of heat transfer chamber sets up with the bottom plate interval of casing, and the distance between the bottom of heat transfer chamber and the bottom plate of casing is less than the distance between the bottom of radiator fan's top and the bottom plate of casing, the wind scooper sets up between heat transfer chamber and radiator fan, the first end of wind scooper is connected with radiator fan's top, the second end of wind scooper is connected with the bottom of heat transfer chamber, the wind scooper is used for the whole bottoms that lead heat transfer chamber of the air current that blows into the casing with radiator fan; through setting up the wind scooper, make the bottom of getting into the smooth quilt of whole air current in the casing to the heat transfer chamber more, and the velocity of flow is high, the amount of wind is big, reduces the loss of air current.

Description

Heat radiation machine case

Technical Field

The utility model relates to a observe and control technical field, especially relate to a heat dissipation machine case.

Background

PXI (PCI eXtensions for Instrumentation) is a robust PC-based measurement and automation platform. PXI combines the electrical bus features of PCI with the ruggedness, modularity, and Eurocard mechanical packaging features of CompactPCI, and adds a specialized synchronization bus and major software features that make PXI a high-performance, low-cost carrier platform for measurement and automation systems.

The PXI system generally comprises a chassis, a controller and a plurality of modules, wherein the chassis is used as a common device, the main structure of the chassis comprises a chassis shell, a board card (control device), a locking strip, a pulling aid, a panel and other components, the board card can generate heat when working normally, the heat of the board card is transferred to the surface of the chassis shell through heat conduction and radiated by means of radiation and natural convection under the normal condition, and the heat radiation capability is limited by the surface area of the chassis shell; and along with the integrated level of the board card improves, the heat consumption is higher and higher, but the heat dissipation area of the shell of the chassis is not changed greatly, so that the heat dissipation performance is not improved, and along with the increase of the heat productivity of the board card, the reliability of the work of the board card in the chassis can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a heat dissipation machine case for solve the not good defect of machine case radiating effect among the prior art.

The utility model provides a heat dissipation machine case, include:

the heat dissipation device comprises a shell, wherein a first area of the shell is provided with a heat dissipation fan;

the heat exchange cavity is arranged in a second area in the shell and used for mounting a board card, the second area is opposite to the first area, the top and the bottom of the heat exchange cavity are both in an open structure, the bottom of the heat exchange cavity is arranged at an interval with the bottom plate of the shell, and the distance between the bottom of the heat exchange cavity and the bottom plate of the shell is smaller than the distance between the top of the heat radiation fan and the bottom plate of the shell;

the air guide cover is arranged between the heat exchange cavity and the heat dissipation fan, the first end of the air guide cover is connected with the top of the heat dissipation fan, the second end of the air guide cover is connected with the bottom of the heat exchange cavity, and the air guide cover is used for guiding all air flow blown into the shell by the heat dissipation fan to the bottom of the heat exchange cavity.

According to the utility model provides a heat dissipation machine case, the bottom in heat transfer chamber with be provided with between the bottom plate of casing and be used for the air current switching-over and leading-in the collection wind switching-over subassembly in the heat transfer intracavity.

According to the utility model provides a heat dissipation machine case, collection wind switching-over subassembly includes a plurality of collection aerofoil, the cross-section of collection aerofoil is the arc structure, the internal surface of collection aerofoil with the heat transfer chamber corresponds, and is a plurality of collection aerofoil is the echelonment and distributes the bottom in heat transfer chamber with between the bottom plate of casing.

According to the utility model provides a heat dissipation machine case, the heat transfer chamber is including relative first baffle and the second baffle that sets up, first baffle with the wind scooper is connected, follows first baffle extremely the direction of second baffle, the wind-collecting plate with distance between the bottom plate of casing reduces gradually.

According to the utility model provides a heat dissipation machine case, it is a plurality of collect aerofoil along the equidistant setting of horizontal direction, and every adjacent two collect aerofoil's difference in height is the same.

According to the utility model provides a heat dissipation machine case, the wind scooper includes collecting plate and guide plate, the guide plate with the bottom of first baffle is connected perpendicularly, the collecting plate slope sets up, the first end of collecting plate with radiator fan's top is connected, the second end of collecting plate with the guide plate is kept away from the one end of first baffle is connected.

According to the utility model provides a heat dissipation machine case, the collecting plate with contained angle between the bottom plate of casing is 28 ~ 45.

According to the utility model provides a heat dissipation machine case, the collecting plate with be provided with the board that flow equalizes between the bottom plate of casing, the board that flow equalizes with radiator fan's air-out end corresponds, a plurality of wind-guiding holes have evenly been seted up on the board that flow equalizes.

According to the utility model provides a heat dissipation machine case, the flow equalizing plate with the bottom plate slope of casing is connected.

According to the utility model provides a heat dissipation machine case, the casing is the cube structure.

The utility model provides a heat dissipation case, radiator fan and heat transfer chamber set up two relative regions in the casing respectively, the top and the bottom in heat transfer chamber all set up to open structure, because the distance between the bottom in heat transfer chamber and the bottom plate of casing is less than the distance between radiator fan's top and the bottom plate of casing, through set up the wind scooper between heat transfer chamber and radiator fan, make the both ends of wind scooper be connected with radiator fan's top and heat transfer chamber's bottom respectively, thereby can blow in the whole air current in the casing with radiator fan, more smooth bottom of being delivered to the heat transfer chamber, and the velocity of flow is high, the amount of wind is big, the loss of air current has been reduced.

Furtherly, through the collection wind switching-over subassembly that sets up between the bottom in heat transfer chamber and the bottom plate of casing, with the air current switching-over and leading-in heat transfer intracavity, improved the radiating effect, realize that the air current gets into from the bottom in heat transfer chamber, discharge from the top in heat transfer chamber to the integrated circuit board to the heat transfer intracavity cools down.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an internal structure of a heat dissipation case provided in an embodiment of the present invention;

fig. 2 is a front view of a heat dissipation case provided by the embodiment of the present invention.

Reference numerals are as follows:

1. a heat radiation fan; 2. a heat exchange cavity; 3. a wind scooper; 31. a collection plate; 32. a baffle; 4. a wind-collecting plate; 5. a first baffle plate; 6. a second baffle; 7. a flow equalizing plate; 8. an ear plate.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A heat dissipation case provided in an embodiment of the present invention is described below with reference to fig. 1 to 2.

The heat dissipation machine case that this embodiment provided includes: the heat exchanger comprises a shell, a heat radiation fan 1, a heat exchange cavity 2 and an air guide cover 3.

Wherein a first area of the housing is provided with a cooling fan 1.

The heat exchange cavity 2 is arranged in a second area in the shell and used for installing the board card, the second area is arranged opposite to the first area, the top and the bottom of the heat exchange cavity 2 are both arranged in an open structure, namely, the bottom and the top of the heat exchange cavity 2 are respectively used for air inlet and air outlet; the bottom of heat transfer chamber 2 sets up with the bottom plate interval of casing, namely, heat transfer chamber 2 is not connected with the bottom plate of casing, but has certain interval with the bottom plate to make the air current can get into the bottom of heat transfer chamber 2, and the distance between the bottom of heat transfer chamber 2 and the bottom plate of casing is less than the distance between the bottom of radiator fan 1 and the bottom plate of casing.

The air guide cover 3 is arranged between the heat exchange cavity 2 and the heat dissipation fan 1, the first end of the air guide cover 3 is connected with the top of the heat dissipation fan 1, the second end of the air guide cover 3 is connected with the bottom of the heat exchange cavity 2, and the air guide cover 3 is used for guiding all air flow blown into the shell by the heat dissipation fan 1 to the bottom of the heat exchange cavity 2.

According to the above scheme, compare with prior art, the utility model discloses because integrated circuit board can generate heat in the integrated circuit board operation process, need send into the air current in the casing with radiator fan 1 in heat transfer chamber 2, to the heat dissipation of board card, through set up wind scooper 3 between heat transfer chamber 2 and radiator fan 1, make the both ends of wind scooper 3 be connected with radiator fan 1's top and heat transfer chamber 2's bottom respectively, thereby can blow in the bottom that heat transfer chamber 2 was sent to whole air current more smooth in the casing with radiator fan 1, and the velocity of flow is high, the amount of wind is big, the loss of air current has been reduced, indirect improvement the radiating effect, realize that the air current gets into from heat transfer chamber 2's bottom, discharge from heat transfer chamber 2's top, thereby cool down the integrated circuit board in the heat transfer chamber 2.

In some embodiments, the housing is of a cubic structure (not shown in the figures), the first region and the second region are respectively located at two sides in the housing, the heat dissipation fan 1 is installed at one side in the housing, the number of the heat dissipation fans 1 is determined according to the external dimension of the heat dissipation fan 1 and the length of a side plate (not shown in the figures) of the housing, the heat dissipation fans 1 are installed sequentially along the length direction of the side plate of the housing, and the bottom of each heat dissipation fan 1 is in contact with a bottom plate (not shown in the figures) of the housing; the heat exchange cavity 2 is positioned at the other side corresponding to the cooling fan 1, the heat exchange cavity 2 is connected with a side plate of the shell, and a gap is reserved between the bottom of the heat exchange cavity 2 and a bottom plate of the shell; due to the arrangement, the bottom of the heat exchange cavity 2 is separated from the bottom plate of the shell, and after the air guide cover 3 is connected with the bottom of the heat exchange cavity 2, a channel for enabling air flow to pass through can be formed between the air guide cover 3 and the bottom plate of the shell.

The wind scooper 3 is fixed between the front and rear end plates of the casing, the front and rear ends of the wind scooper 3 may be respectively provided with a connecting plate with a threaded hole, and then the connecting plate is connected with the front and rear end plates of the casing by screws, so that the wind scooper 3 is mounted.

In this embodiment, an air collecting and reversing assembly for reversing air flow and guiding the air flow into the heat exchange cavity 2 is arranged between the bottom of the heat exchange cavity 2 and the bottom plate of the housing. So set up, because the air current in heat transfer chamber 2 passes through the direction and is different with the air current direction of leading-in heat transfer chamber 2 bottom, can turn to the air current of leading-in heat transfer chamber 2 bottom in order to lead to heat transfer chamber 2 through setting up the wind-collecting switching-over subassembly.

In some embodiments, the wind collecting and reversing assembly comprises a plurality of wind collecting plates 4, and the length of the wind collecting plates 4 is not less than the length of the heat exchange cavity 2; as shown in fig. 2, the surface of the wind-collecting plate 4 is an arc-shaped structure, and compared with the L-shaped structure with an included angle, the arc-shaped structure can reduce the loss of the airflow; the inner surface of the wind collecting plate 4 corresponds to the heat exchange cavity 2, and the plurality of wind collecting plates 4 are distributed between the bottom of the heat exchange cavity 2 and the bottom plate of the shell in a step shape. With the arrangement, when the airflow is turned, the cross section of the air collecting plate 4 is of the arc-shaped structure, so that the airflow can be guided into the heat exchange cavity 2 at the maximum flow speed under the condition of reducing the loss of the airflow, and the heat dissipation effect of the board card is improved; and the wind collecting plates 4 are distributed in a step shape, so that the turned air flow can be guided into each position in the heat exchange cavity 2, and the uniform heat dissipation of the board cards in the heat exchange cavity 2 is realized.

Both ends of the wind collecting plate 4 are respectively provided with the lug plates 8 with threaded holes, the lug plates 8 are connected with the front end plate and the rear end plate of the shell through screws, the rotation of the wind collecting plate 4 can be realized through loosening the screws, and the installation angle of the wind collecting plate 4 is adjusted.

The two side ends of the wind collecting plate 4 are respectively parallel to the horizontal direction and the vertical direction, so that the airflow collected by the wind scooper 3 can be turned, preferably, the angle of the circle center corresponding to the arc-shaped cross section of the wind collecting plate 4 is not less than 90 degrees, and the collision loss of the inner surface of the wind collecting plate 4 to the airflow due to too small angle is reduced.

In this embodiment, the heat exchange cavity 2 includes a first baffle 5 and a second baffle 6 which are oppositely arranged, the board card can be inserted into the first baffle 5 and the second baffle 6, the first baffle 5 is connected with the wind scooper 3, the second baffle 6 is connected with the side plate of the shell, and the front and rear ends of the first baffle 5 and the second baffle are respectively connected with the front and rear end plates of the shell, so as to realize the installation of the heat exchange cavity 2 in the shell; along the direction of the first baffle 5 to the second baffle 6, the distance between the wind collecting plate 4 and the bottom plate of the shell is gradually reduced, so that the airflow covers all positions in the heat exchange cavity 2.

Optionally, the plurality of wind collecting plates 4 are arranged at equal intervals along the horizontal direction, and the height difference between every two adjacent wind collecting plates 4 is the same, so that the airflow can be uniformly guided into each position in the heat exchange cavity 2.

Preferably, the distance between the wind-collecting plate 4 corresponding to the first baffle 5 and the first baffle 5 should be increased as much as possible, and experiments show that, when the distance between the wind-collecting plate 4 at this position and the first baffle 5 is 15.7mm, 30.7mm and 45.7mm, respectively, the airflow velocity entering the heat exchange chamber 2 tends to gradually rise with the increase of the distance, that is, the distance between the wind-collecting plate 4 at this position and the first baffle 5 is increased as much as possible under certain conditions.

Referring to fig. 2, in the present embodiment, the wind scooper 3 includes a collecting plate 31 and a guiding plate 32, the guiding plate 32 is vertically connected to the bottom of the first baffle 5, the collecting plate 31 is disposed obliquely, a first end of the collecting plate 31 is connected to the top of the heat dissipating fan 1, and a second end of the collecting plate 31 is connected to an end of the guiding plate 32 away from the first baffle 5. So set up, the passageway that the air current passes through is enclosed into to the bottom plate of collecting plate 31 and guide plate 32 and casing, blow into the air current in the casing through collecting plate 31 with radiator fan 1, along the leading-in below of inclined plane, because the first baffle 5 of guide plate 32 perpendicular to, thereby the bottom plate of guide plate 32 and casing is parallel to each other, the air current passes through behind the passageway that encloses between guide plate 32 and the bottom plate, can blow to wind-collecting plate 4 along the horizontal direction, for not setting up guide plate 32 air current slant and blow to wind-collecting plate 4, improve the efficiency of turning to the air current of wind-collecting plate 4, thereby steering effect and radiating efficiency have been improved.

Preferably, the included angle between the collecting plate 31 and the bottom plate of the housing is 28 ° to 45 °, which may be 28.7 °, 29 °, 30 °, 31 °, 32 °, 33 °, 34 °, 35 °, 36 °, 37 °, 38 °, 39 °, 40 °, 41 °, 42 °, 43 °, 44 °, 45 °, and when it is 45 °, it can provide the most smooth airflow with the largest air volume.

In this embodiment, a flow equalizing plate 7 is disposed between the collecting plate 31 and the bottom plate of the casing, the flow equalizing plate 7 corresponds to the air outlet end of the heat dissipating fan 1, and a plurality of air guiding holes are uniformly formed in the flow equalizing plate 7. So set up, can be with the air current homodisperse of radiator fan 1 leading-in casing, avoid local amount of wind too big, make the even dispersion of air current fill the passageway, finally in leading-in heat transfer chamber 2.

Further, the flow equalizing plate 7 is obliquely connected to the bottom plate of the housing such that the surface of the flow equalizing plate 7 faces the obliquely flowing air stream collected by the collecting plate 31.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A heat dissipation case, comprising:

a housing, a first region of which is provided with a heat radiation fan (1);

the heat exchange cavity (2) is arranged in a second area in the shell and used for mounting a board card, the second area is opposite to the first area, the top and the bottom of the heat exchange cavity (2) are both arranged in an open structure, the bottom of the heat exchange cavity (2) is arranged at an interval with the bottom plate of the shell, and the distance between the bottom of the heat exchange cavity (2) and the bottom plate of the shell is smaller than the distance between the top of the cooling fan (1) and the bottom plate of the shell;

the air guide cover (3) is arranged between the heat exchange cavity (2) and the heat dissipation fan (1), the first end of the air guide cover (3) is connected with the top of the heat dissipation fan (1), the second end of the air guide cover (3) is connected with the bottom of the heat exchange cavity (2), and the air guide cover (3) is used for guiding all air flow blown into the shell by the heat dissipation fan (1) to the bottom of the heat exchange cavity (2).

2. The heat dissipation cabinet according to claim 1, wherein a wind collecting and reversing assembly for reversing and guiding the airflow into the heat exchange cavity (2) is disposed between the bottom of the heat exchange cavity (2) and the bottom plate of the housing.

3. The heat dissipation cabinet according to claim 2, wherein the wind collecting and reversing assembly includes a plurality of wind collecting plates (4), a cross section of each wind collecting plate (4) is an arc-shaped structure, an inner surface of each wind collecting plate (4) corresponds to the heat exchange cavity (2), and the plurality of wind collecting plates (4) are distributed between the bottom of the heat exchange cavity (2) and the bottom plate of the housing in a step shape.

4. The heat dissipation cabinet according to claim 3, wherein the heat exchange cavity (2) comprises a first baffle (5) and a second baffle (6) which are arranged oppositely, the first baffle (5) is connected with the wind scooper (3), and the distance between the wind collecting plate (4) and the bottom plate of the casing is gradually reduced along the direction from the first baffle (5) to the second baffle (6).

5. The heat dissipation cabinet according to claim 3 or 4, wherein a plurality of the wind collecting plates (4) are arranged at equal intervals along the horizontal direction, and the height difference between every two adjacent wind collecting plates (4) is the same.

6. The heat dissipation cabinet of claim 4, wherein the wind scooper (3) comprises a collecting plate (31) and a flow guiding plate (32), the flow guiding plate (32) is vertically connected to the bottom of the first baffle (5), the collecting plate (31) is disposed obliquely, a first end of the collecting plate (31) is connected to the top of the heat dissipation fan (1), and a second end of the collecting plate (31) is connected to an end of the flow guiding plate (32) away from the first baffle (5).

7. The heat dissipation cabinet of claim 6, wherein an angle between the collection plate (31) and the bottom plate of the housing is 28 ° to 45 °.

8. The heat dissipation cabinet according to claim 6, wherein a flow equalizing plate (7) is disposed between the collecting plate (31) and the bottom plate of the casing, the flow equalizing plate (7) corresponds to the air outlet end of the heat dissipation fan (1), and a plurality of air guiding holes are uniformly formed in the flow equalizing plate (7).

9. The heat dissipation cabinet of claim 8, wherein the flow equalization plate (7) is connected to the bottom plate of the housing in an inclined manner.

10. The heat dissipating chassis of claim 1, wherein the housing is a cubic structure.