CN220064780U

CN220064780U - External auxiliary heat dissipation device

Info

Publication number: CN220064780U
Application number: CN202321619587.5U
Authority: CN
Inventors: 王敏
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-11-21
Anticipated expiration: 2033-06-25

Abstract

The utility model provides an external auxiliary heat dissipating device, which comprises a case shell and a heat dissipating box, wherein a plurality of air inlet holes are formed in the top wall of the case shell, and an air outlet is formed in one side of the case shell; be equipped with coupling mechanism between radiating box and the quick-witted case casing, be suitable for the radiating box and dismantle and connect in machine case casing, the radiating box includes box body and first filter screen, and the box body is upper and lower opening setting, and first filter screen lid is established in the last opening part of box body, and the lower opening intercommunication of box body is in the fresh air inlet, is equipped with the fan in the radiating box, is equipped with fixed subassembly between first filter screen and the box body, is suitable for the dismantlement of first filter screen and connects. According to the external auxiliary heat dissipation device provided by the utility model, the lower opening is formed through the heat dissipation box, and the connecting mechanism and the fixing assembly are arranged, so that personnel can conveniently clean the first filter screen, the fan, the inside of the heat dissipation box and the top wall of the case shell, the influence on the gas flow caused by the blockage of the first filter screen or the blockage of the air inlet hole is avoided, meanwhile, the accumulation of sundries on the fan blades is avoided, and the energy consumption waste is reduced.

Description

External auxiliary heat dissipation device

Technical Field

The utility model relates to the technical field of heat dissipation, in particular to an external auxiliary heat dissipation device.

Background

The use of integrated circuits in computer components is well known, and high temperatures are a major challenge of integrated circuits, and not only can the high temperatures cause unstable operation of the system and shortened service life, but also can cause burning of certain components, so that the heat of the high temperatures is not from outside the computer, but inside the computer, or inside the integrated circuit, and the heat radiator acts to absorb the heat and then radiate the heat into or out of a case, thereby ensuring that the temperature of the computer components is normal.

The utility model provides an external auxiliary heat abstractor for computer, including chassis housing and box body, the box body is located chassis housing's top, first through-hole has been seted up at chassis housing's top, one side of box body is connected with the USB plug, and the controller is installed to the opposite side of box body, the second through-hole has all been seted up to box body's top and bottom, and the inside both sides wall symmetry of box body is provided with the stopper, install the slide bar between two stoppers, the outer wall cover of slide bar is equipped with the sliding sleeve, the fan is installed to the one end that the slide bar was kept away from to the sliding sleeve. The sliding sleeve is pushed by the electric telescopic rod to drive the fan to move back and forth, working airflow of the fan enters the box body from the second through hole and enters the machine case from the first through hole, hot air in the machine case is driven to flow, and then the hot air is extracted from the fan, so that heat dissipation inside the machine case is realized.

In the above scheme, most of dust in the air is blown out of the case shell through the air flow, however, less impurities such as dust and greasy dirt remain in the auxiliary heat dissipating device and the case, and the case shell top plate provided with the first through hole and the case shell top plate provided with the second through hole and the case top plate and the case bottom plate provided with the second through hole are used for forming an impurity filter plate for filtering impurities in the air, so that the remaining impurities are mainly attached in the case, on the fan and the case shell top plate.

Through long-time use, a large amount of impurity will adhere to on filter department and the fan, blocks up first through-hole or second through-hole even and influences gas flow, reduces auxiliary heat abstractor's radiating effect, and a large amount of impurity will increase the loading of fan blade simultaneously, increases the energy consumption for radiating efficiency is low.

Disclosure of Invention

In view of the above, the present utility model provides an external auxiliary heat dissipating device for solving the problems of inconvenient cleaning of the filter plate and the fan of the auxiliary heat dissipating device, reducing the heat dissipating effect and increasing the energy consumption.

In order to achieve the above purpose, the present utility model provides an external auxiliary heat dissipation device, which adopts the following technical scheme:

the utility model provides an external auxiliary heat dissipation device, which comprises:

the computer case comprises a case shell, wherein the case shell is internally used for accommodating a computer case body, a plurality of air inlet holes are formed in the top wall of the case shell, and an air outlet is formed in one side of the case shell;

the heat dissipation box is detachably connected to the top wall of the case shell and comprises a box body and a first filter screen, wherein the box body is arranged in an upper-lower opening mode, the first filter screen is covered on the upper opening of the box body, the lower opening of the box body is communicated with the air outlet through the air inlet, and a fan is arranged in the heat dissipation box;

the fixing component is arranged between the first filter screen and the box body so as to realize detachable connection between the first filter screen and the box body;

the connecting mechanism is arranged between the box body and the case shell so as to realize detachable connection between the box body and the case shell.

By adopting the technical scheme, when the computer case body needs to be subjected to heat dissipation, the fan is started, the fan drives external air to pass through the box body through the first filter screen and enter the case body through the air inlet hole by the lower opening of the box body, and meanwhile, the external air pushes the air in the case body to be discharged through the air outlet, so that the heat dissipation of the computer case body is realized; when needs clear up first filter, fixed subassembly is removed and is connected first filter, personnel can dismantle first filter and wash, in addition, coupling mechanism removes the connection back between quick-witted case casing and the radiating box, personnel accessible radiating box's lower opening cleans the fan in the radiating box, the roof of quick-witted case casing exposes after the radiating box dismantles, personnel can directly clean machine case casing roof, personnel's periodic cleaning has avoided blockking up or the air inlet is blockked up and is influenced the gas flow because of first filter screen, auxiliary heat abstractor's radiating effect has been ensured, debris on the fan blade has been avoided simultaneously piling up, the energy consumption is extravagant has been reduced, radiating efficiency has been ensured.

In one possible implementation, the fixing assembly includes:

the metal frame is fixed in the box body, and the fan is arranged below the metal frame;

and the magnetic ring is fixed on the bottom surface of the first filter screen and is used for magnetically adsorbing the metal frame.

Through adopting above-mentioned technical scheme, first filter screen passes through the magnetic ring and is connected with the metal frame, has realized that the two is put promptly and is fixed promptly, takes promptly and releases promptly for the installation of first filter screen and its dismantlement are swift convenient.

In one possible implementation, the connection mechanism includes:

the limiting frame is annularly arranged, sleeved on the box body and extends to the case shell;

and the limiting assembly is arranged on the limiting frame, and part of the limiting assembly moves towards the case shell and is abutted with the case shell so as to fix the limiting frame on the case shell.

Through the technical scheme, when the radiating box is connected to the case shell, the limiting frame is sleeved to the top end of the case shell, part of the limiting components move towards the case shell and are abutted with the case shell, the limiting components clamp the case shell until the case shell is relatively static, and at the moment, the limiting frame and the case shell are relatively fixed; when the limiting frame needs to be detached, part of the limiting assembly moves away from the case shell until the clamping effect on the case shell is canceled, so that the heat dissipation box and the case shell are connected and detached quickly and conveniently.

In one possible implementation manner, two side walls of the limiting frame, which are oppositely arranged, are symmetrically provided with accommodating grooves, the notch of each accommodating groove faces the case shell, and the limiting frame is provided with two screw holes which are respectively communicated with the accommodating grooves;

the spacing subassembly is equipped with two sets of, spacing subassembly includes:

the clamping piece is arranged in the accommodating groove in a sliding manner;

the adjusting screw rod is inserted into the limiting frame through the screw hole and is connected with the clamping piece, and the adjusting screw rod is in one-to-one corresponding rotary connection with the screw hole so as to drive the clamping piece to slide towards or away from the chassis shell.

By adopting the technical scheme, when the two groups of limiting components need to clamp the case shell, the two adjusting screws are rotated, the clamping components slide towards the case shell due to the threaded fit between the adjusting screws and the screw holes, and when the two clamping components are attached to the side wall of the case shell and cannot move continuously, the two groups of limiting components stop rotating the adjusting screws, so that the case shell is clamped, and the heat dissipation box and the case shell are relatively fixed; when the fixed connection between the radiating box and the case shell needs to be released, the two adjusting screws are reversely rotated until the two clamping pieces leave the side wall of the case shell, the operation is simple, the technical requirements on the detached personnel are low, and the radiating box is suitable for popularization.

In one possible implementation, a turntable is fixedly connected to an end of the adjusting screw remote from the clamping element.

Through adopting above-mentioned technical scheme, personnel rotate the carousel and can realize screwing up the regulation to adjusting screw, have increased adjusting screw's area of stress, be convenient for personnel's operation.

In one possible implementation manner, a guide rod is arranged in the accommodating groove, the extending direction of the guide rod is consistent with the sliding direction of the clamping piece, a guide hole is formed in the clamping piece, and the guide rod is inserted into the clamping piece through the guide hole.

Through adopting above-mentioned technical scheme, the guide bar inserts through the guiding hole and establishes on the holder, and when the holder moved towards or deviate from machine case casing, the holder moved towards or deviate from machine case casing along the extending direction of guide bar, had avoided the holder to move because of the card of holder rotation in the holding tank that causes when the holder was moved and had ensured the removal smoothness nature of holder.

In one possible implementation manner, a sealing ring is arranged on the bottom wall of the box body, and the sealing ring is attached to the top wall of the case body so as to seal the joint of the case body and the case body.

Through adopting above-mentioned technical scheme, when the heat dissipation box is connected the machine case casing, the upper top surface and the lower bottom surface of sealing washer laminate respectively on the bottom surface of box body and the top surface of machine case casing, realized the seal of box body and machine case casing junction, reduced the possibility that the gas that gets into in the box body when the fan during operation flows out through box body and machine case casing junction, ensured the effective acting of fan, reduced the energy consumption extravagant, ensured radiating efficiency.

In one possible implementation manner, the external auxiliary heat dissipation device further comprises an air outlet fan, and the air outlet fan is arranged at the air outlet.

Through adopting above-mentioned technical scheme, open the air-out fan when opening the fan, the fan drives external gas and gets into the quick-witted case casing by the last opening of box body and get into the box body, and the air-out fan drives the gaseous discharge of air outlet in the quick-witted case casing, and the setting of air-out fan has improved the gaseous efficiency of taking a breath in the quick-witted case casing.

In one possible implementation manner, the air outlet fan housing is provided with a protection ring, two ends of the protection ring are provided with openings, one end of the protection ring is fixed outside the case housing and winds around the periphery of the air outlet, and a second filter screen is arranged on the protection ring and is located between the air outlet fan and the other end of the protection ring.

Through adopting above-mentioned technical scheme, the protection ring protects the air-out fan, avoids the damage that causes because of colliding with, and the second filter screen has avoided when not using the computer simultaneously, and the dust gets into the machine case casing from the air outlet, causes the problem that the computer machine case body damaged in the machine case casing.

In one possible implementation manner, a jack is formed in the top wall of the protection ring, and sliding grooves are formed in two opposite inner side walls of the protection ring and are communicated with the jack;

the second filter screen is inserted into the protection ring through the insertion holes and the guide of the sliding grooves in sequence.

Through adopting above-mentioned technical scheme, when the second filter screen need clear up, take out the second filter screen by the jack in the spout, insert to the spout again by the jack after the cleaning is accomplished in, realized convenient installation and the dismantlement of second filter screen.

The utility model provides an external auxiliary heat dissipation device which comprises:

when the computer case body is required to be cooled, the fan and the air outlet fan are started, the fan drives external air to pass through the box body through the first filter screen and enter the case body through the air inlet hole by the lower opening of the box body, and meanwhile, the air outlet fan drives air in the case body to be discharged through the air outlet, so that the cooling of the computer case body in the case body is realized.

When the auxiliary heat radiating device is required to be maintained and cleaned, the first filter screen is taken to enable the magnetic ring to leave the metal frame, and personnel clean the first filter screen; the two turntables are reversely rotated, so that the two adjusting screws reversely rotate at the corresponding screw holes, the two clamping pieces move towards the direction deviating from the case shell until the two clamping pieces leave the side wall of the case shell, the clamping action of the connecting mechanism on the case shell is canceled, and the relative fixation between the heat dissipation box and the case shell is canceled; taking the radiating box, personnel clean the fan in the radiating box through the lower opening of the radiating box, the roof of the case body is exposed after the radiating box is disassembled, personnel can directly clean the roof of the case body, the regular cleaning avoids affecting the gas flow due to the blockage of a first filter screen or the blockage of an air inlet, the radiating effect of an auxiliary radiating device is ensured, meanwhile, the accumulation of sundries on the fan blades is avoided, the energy consumption is reduced, and the radiating efficiency is ensured.

Drawings

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present utility model and, together with the description, serve to explain the principles of the utility model, and, as will be apparent to those skilled in the art, are directed to some embodiments of the utility model and, together with the description, serve to obtain further drawings from which the person skilled in the pertinent art will be able to make and use the utility model without the aid of inventive faculty.

Fig. 1 is a schematic diagram of the overall structure of an external auxiliary heat dissipating device according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of an external auxiliary heat dissipation device according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an external auxiliary heat dissipating device according to another embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion A of FIG. 3;

FIG. 5 is a partial exploded view of a heat dissipating box and a connection mechanism in an external auxiliary heat dissipating device according to an embodiment of the present utility model;

fig. 6 is a partial exploded view of a protection ring in an external auxiliary heat dissipating device according to an embodiment of the present utility model.

Reference numerals illustrate:

100-a chassis housing; 110-an air inlet; 120-air outlet;

200-a heat dissipation box; 210-a box body; 211-a sealing ring; 220-a first screen; 221-a first handle;

300-fixing the assembly; 310-metal rack; 320-magnet rings;

400-connecting mechanism; 410-a limit frame; 411-receiving slot; 420-a limiting assembly; 421-clamps; 422-adjusting the screw; 423-a turntable; 424-guide bar; 425-guide holes;

500-fans;

600-an air outlet fan;

700-guard ring; 710-a second screen; 711-a second handle; 720-jacks; 730-limit bars.

Specific embodiments of the present utility model have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.

Further, it should be noted that, in the description of the present utility model, terms such as "inner", "outer", and the like, refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or component must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two components. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The computer is commonly called as a computer, is a modern electronic computing machine for high-speed computation, can perform numerical computation, can perform logic computation, and has a memory function. The intelligent electronic device is modern intelligent electronic equipment which can automatically and rapidly process mass data according to program operation. The computer is used as an information processing tool, is applied to various aspects of scientific research, industrial and agricultural production, social service, family life and the like, and has universality and universality.

The use of integrated circuits in large numbers in computer components is well known to be a major challenge in integrated circuits, where high temperatures can not only lead to unstable system operation, but also to reduced life and even the possibility of burning out certain components. The heat that causes the high temperature is not from outside the computer but inside the computer, or inside the integrated circuit, and thus the heat sink becomes one of the indispensable auxiliary devices in the operation of the computer. The radiator is used for absorbing the heat and then radiating the heat into or out of the case so as to ensure the normal temperature of computer components.

The inventor finds that most of dust in the air is blown out of the case shell through the air flow, however, a small part of impurities such as dust and greasy dirt remain in the auxiliary heat dissipating device and the case, and the case shell top plate provided with the first through hole and the case shell top plate provided with the second through hole and the case top plate and the case bottom plate provided with the second through hole are formed to filter the impurities in the air through the impurity filter plate, so that the remaining impurities are mainly attached to the inside of the case, the fan and the case shell top plate.

However, the inventors have found that, after long-term use, a large amount of impurities will adhere to the filter plate and the fan, and even block the first through hole or the second through hole to affect the gas flow, so as to reduce the heat dissipation effect of the auxiliary heat dissipation device, and at the same time, the large amount of impurities will increase the load of the fan blade, increase the energy consumption, so that the heat dissipation efficiency of the auxiliary heat dissipation device is low.

Therefore, the inventor provides an external auxiliary heat dissipation device to solve the problems that the filter plate and the fan of the auxiliary heat dissipation device are inconvenient to clean, the heat dissipation effect is reduced, and the energy consumption is increased.

The utility model will now be described in detail with reference to the accompanying drawings and examples:

fig. 1 is a schematic diagram of the overall structure of an external auxiliary heat dissipating device according to an embodiment of the present utility model; fig. 2 is a cross-sectional view of an external auxiliary heat dissipation device according to an embodiment of the present utility model; FIG. 3 is a cross-sectional view of an external auxiliary heat dissipating device according to another embodiment of the present utility model; FIG. 4 is an enlarged view of a portion A of FIG. 3; FIG. 5 is a partial exploded view of a heat dissipating box and a connection mechanism in an external auxiliary heat dissipating device according to an embodiment of the present utility model; fig. 6 is a partial exploded view of a protection ring in an external auxiliary heat dissipating device according to an embodiment of the present utility model.

Referring to fig. 1 to 6, the external auxiliary heat dissipating device provided by the present utility model includes a chassis housing 100, a heat dissipating box 200, a fixing assembly 300, and a connecting mechanism 400.

Wherein, the chassis housing 100 is used for placing a computer chassis body, the top wall of the chassis housing 100 is provided with a plurality of air inlet holes 110, and one side of the chassis housing 100 is provided with an air outlet 120; the heat dissipation box 200 is detachably connected to the top wall of the chassis housing 100, and comprises a box body 210 and a first filter screen 220, wherein the box body 210 is arranged with an upper opening and a lower opening, the first filter screen 220 is covered at the upper opening of the box body 210, the lower opening of the box body 210 is communicated with the air outlet 120 through the air inlet 110, and a fan 500 is arranged in the heat dissipation box 200.

In addition, the fixing assembly 300 is disposed between the first filter 220 and the case 210 to realize detachable connection between the first filter 220 and the case 210; the connection mechanism 400 is disposed between the case 210 and the housing 100 to achieve a detachable connection between the case 210 and the housing 100.

When the heat dissipation needs to be performed on the computer case body, the fan 500 is turned on, the fan 500 drives the external air to pass through the box body 210 through the first filter screen 220 and enter the case housing 100 through the air inlet 110 from the lower opening of the box body 210, and at the same time, the external air pushes the air in the case housing 100 to be discharged through the air outlet 120, so that the heat dissipation on the computer case body is realized; when the first filter plate needs to be cleaned, the fixing assembly 300 releases the connection to the first filter plate, a person can detach the first filter plate and clean the first filter plate, in addition, after the connection mechanism 400 releases the connection between the case housing 100 and the heat dissipation box 200, the person can clean the fan 500 in the heat dissipation box 200 through the lower opening of the heat dissipation box 200, the top wall of the case housing 100 is exposed after the heat dissipation box 200 is detached, the person can directly clean the top wall of the case housing 100, regular cleaning of the person avoids affecting the gas flow due to the blocking of the first filter screen 220 or the blocking of the air inlet 110, the heat dissipation effect of the auxiliary heat dissipation device is ensured, meanwhile, sundries on the blades of the fan 500 are avoided, the energy consumption is reduced, and the heat dissipation efficiency is ensured.

In some embodiments, the lower opening of the box 210 is located at the axis of each air inlet 110, and each air inlet 110 is vertically in communication with the lower opening of the box 210. The fan 500 blows the air in the box 210 downward through the lower opening of the box 210 into the air inlet 110 in the vertical direction, thereby improving the smoothness of the air flow.

In some embodiments, the air outlets 120 are provided in plurality, the air outlets 120 are all formed on the side wall of the chassis housing 100, and the air outlets 120 are all formed near the bottom end of the chassis housing 100.

In the above description, the fixing assembly 300 includes a metal frame 310 and a magnetic ring 320, wherein the metal frame 310 is fixed in the box 210, and the fan 500 is disposed below the metal frame 310; the magnetic ring 320 is fixed on the bottom surface of the first filter 220, and is used for magnetically adsorbing the metal frame 310.

The first filter screen 220 is connected with the metal frame 310 through the magnetic ring 320, so that the first filter screen 220 can be fixed and released when being placed and removed, and the first filter screen 220 can be installed and removed quickly and conveniently.

In some embodiments, a metal ring is provided on the top wall of the metal frame 310, opposite the magnetic ring 320.

In some embodiments, one end of the first filter 220 is provided with a first handle 221, one end of the first handle 221 is fixed on the first filter 220, and the other end of the first handle 221 is located at a side of the first filter 220 facing away from the magnetic ring 320.

When personnel take first filter screen 220, pull first handle 221, first handle 221 drives the one end slope of first filter screen 220 upwards, and the setting of first handle 221 makes first filter screen 220 be convenient for take, has improved first filter screen 220's dismantlement efficiency.

In the above description, the connection mechanism 400 includes a limiting frame 410 and a limiting assembly 420, wherein the limiting frame 410 is disposed in a ring shape, and the limiting frame 410 is sleeved on the box 210 and extends to the chassis housing 100; the limiting assembly 420 is disposed on the limiting frame 410, and a portion of the limiting assembly 420 moves toward the chassis housing 100 and abuts against the chassis housing 100 to fix the limiting frame 410 on the chassis housing 100.

When the heat dissipation box 200 is connected to the chassis housing 100, the limiting frame 410 is sleeved to the top end of the chassis housing 100, a part of the limiting assembly 420 moves towards the chassis housing 100 and abuts against the chassis housing 100, the limiting assembly 420 clamps the chassis housing 100 until the chassis housing 100 is relatively stationary, and at the moment, the limiting frame 410 and the chassis housing 100 are relatively fixed; when the limiting frame 410 needs to be detached, part of the limiting assembly 420 moves away from the case housing 100 until the clamping effect on the case housing 100 is canceled, so that the connection and the detachment between the heat dissipation box 200 and the case housing 100 are quick and convenient.

In some embodiments, two side walls of the limiting frame 410 opposite to each other are symmetrically provided with a receiving slot 411, a slot opening of the receiving slot 411 faces the chassis housing 100, and the limiting frame 410 is provided with two screw holes respectively communicated with the receiving slot 411. The limiting assembly 420 is provided with two groups, the limiting assembly 420 comprises clamping pieces 421 and adjusting screws 422, wherein the clamping pieces 421 are arranged in the accommodating groove 411 in a sliding mode, the adjusting screws 422 are inserted into the limiting frame 410 through screw holes and are connected with the clamping pieces 421, and the adjusting screws 422 are in one-to-one rotary connection with the screw holes so as to drive the clamping pieces 421 to slide towards or away from the chassis shell 100.

When the two sets of limiting assemblies 420 need to clamp the chassis housing 100, the two adjusting screws 422 are rotated, the clamping pieces 421 slide towards the chassis housing 100 due to threaded cooperation between the adjusting screws 422 and the screw holes, and when the two clamping pieces 421 are attached to the side wall of the chassis housing 100 and cannot move continuously, the two sets of limiting assemblies 420 stop rotating the adjusting screws 422, so that the two sets of limiting assemblies 420 clamp the chassis housing 100, and the heat dissipation box 200 and the chassis housing 100 are relatively fixed; when the fixed connection between the heat dissipation box 200 and the case housing 100 needs to be released, the two adjusting screws 422 are reversely rotated until the two clamping pieces 421 leave the side wall of the case housing 100, so that the operation is simple, the technical requirements on the detached personnel are low, and the heat dissipation device is suitable for popularization.

In some embodiments, a turntable 423 is fixedly connected to an end of the adjusting screw 422 remote from the clamping member 421.

Personnel rotate carousel 423 can realize the regulation of screwing of adjusting screw 422, have increased adjusting screw 422's area of stress, and the personnel of being convenient for operate.

In some embodiments, a guiding rod 424 is disposed in the accommodating slot 411, the extending direction of the guiding rod 424 is consistent with the sliding direction of the clamping member 421, a guiding hole 425 is formed in the clamping member 421, and the guiding rod 424 is inserted into the clamping member 421 through the guiding hole 425.

The guide rod 424 is inserted on the clamping piece 421 through the guide hole 425, when the clamping piece 421 moves towards or away from the chassis shell 100, the clamping piece 421 moves towards or away from the chassis shell 100 along the extending direction of the guide rod 424, so that the clamping of the clamping piece 421 in the accommodating groove 411 caused by the rotation of the clamping piece 421 during the movement of the clamping piece 421 is avoided, and the movement smoothness of the clamping piece 421 is ensured.

In some embodiments, a non-slip pad is fixed to a side of the two clamping members 421 facing the chassis housing 100 to enhance friction between the clamping members 421 and the chassis housing 100, thereby enhancing the fixing effect on the chassis housing 100.

In some embodiments, a sealing ring 211 is disposed on the bottom wall of the box 210, and the sealing ring 211 is attached to the top wall of the chassis housing 100, so as to seal the connection between the housing and the chassis housing 100.

When the heat dissipation box 200 is connected with the chassis housing 100, the upper top surface and the lower bottom surface of the sealing ring 211 are respectively attached to the bottom surface of the box body 210 and the top surface of the chassis housing 100, so that the sealing of the connection between the box body 210 and the chassis housing 100 is realized, the possibility that the air entering the box body 210 flows out through the connection between the box body 210 and the chassis housing 100 when the fan 500 works is reduced, the effective work of the fan 500 is ensured, the energy consumption waste is reduced, and the heat dissipation efficiency is ensured.

In the utility model, the external auxiliary heat dissipation device further comprises an air outlet fan 600, wherein the air outlet fan 600 is arranged at the air outlet 120.

When the fan 500 is turned on and the air outlet fan 600 is turned on, the fan 500 drives the external air to enter the box 210 from the upper opening of the box 210 and enter the case 100, the air outlet fan 600 drives the air in the case 100 to be discharged through the air outlet 120, and the air exchange efficiency of the air in the case 100 is improved due to the arrangement of the air outlet fan 600.

In some embodiments, the outer cover of the air outlet fan 600 is provided with a protection ring 700, the air outlet fan 600 is arranged outside the case body 100, two ends of the protection ring 700 are opened, one end of the protection ring 700 is fixed outside the case body 100 and is wound around the periphery of the air outlet 120, and a second filter screen 710 is arranged on the protection ring 700, and the second filter screen 710 is located between the air outlet fan 600 and the other end of the protection ring 700.

The protection ring 700 protects the air outlet fan 600 from damage caused by collision, and meanwhile, the second filter screen 710 prevents dust from entering the case housing 100 from the air outlet 120 when the computer is not used, so that the case body of the computer in the case housing 100 is damaged.

In some embodiments, the top wall of the protection ring 700 is provided with a jack 720, two opposite inner side walls of the protection ring 700 are provided with sliding grooves, the sliding grooves are communicated with the jack 720, and the second filter screen 710 is inserted into the protection ring 700 through the guide of the jack 720 and the sliding grooves. When the second filter screen 710 needs to be cleaned, the second filter screen 710 is taken out of the insertion hole 720 in the chute, and is reinserted into the chute through the insertion hole 720 after cleaning, so that the second filter screen 710 is conveniently installed and detached.

In some embodiments, two sets of limiting bars 730 are further disposed in the protection ring 700, and the two sets of limiting bars 730 are vertically disposed at two sides of the chute, respectively, and are adapted to limit the second filter screen 710.

In some embodiments, a second grip is provided on top of the second screen 710, with one end of the second grip being located above the guard ring 700 when the second screen 710 is inserted into the guard ring 700.

When a person takes the second filter screen 710, the second handle 711 is pulled, and the second handle 711 drives the second filter screen 710 to be taken out from the protection ring 700, so that the second filter screen 710 is convenient to take, and the disassembly efficiency of the second filter screen 710 is improved.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the disclosed technology.

This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains.

It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims. It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. An external auxiliary heat dissipation device, comprising:

2. The external auxiliary heat sink as defined in claim 1, wherein the fixing assembly comprises:

3. The external auxiliary heat sink as defined in claim 1, wherein the connection mechanism comprises:

4. The external auxiliary heat dissipation device according to claim 3, wherein two side walls of the limiting frame opposite to each other are symmetrically provided with accommodating grooves, the notch of each accommodating groove faces the case shell, and the limiting frame is provided with two screw holes respectively communicated with the accommodating grooves;

the clamping piece is arranged in the accommodating groove in a sliding manner;

5. The external auxiliary heat dissipating device of claim 4, wherein a turntable is fixedly connected to an end of the adjusting screw remote from the clamping member.

6. The external auxiliary heat dissipating device according to claim 4, wherein a guide rod is disposed in the accommodating groove, an extending direction of the guide rod is consistent with a sliding direction of the clamping member, a guide hole is formed in the clamping member, and the guide rod is inserted into the clamping member through the guide hole.

7. The external auxiliary heat dissipating device of claim 1, wherein a sealing ring is provided on the bottom wall of the case, and the sealing ring is attached to the top wall of the case housing, so as to seal the junction between the housing and the case housing.

8. The external auxiliary heat sink as defined in any one of claims 1-7, further comprising an air outlet fan, wherein the air outlet fan is disposed at the air outlet.

9. The external auxiliary heat dissipation device according to claim 8, wherein the air outlet fan housing is provided with a protection ring, two ends of the protection ring are opened, one end of the protection ring is fixed outside the case housing and winds around the periphery of the air outlet, and a second filter screen is arranged on the protection ring and is located between the air outlet fan and the other end of the protection ring.

10. The external auxiliary heat dissipating device according to claim 9, wherein an insertion hole is formed in a top wall of the protection ring, and two opposite inner side walls of the protection ring are respectively provided with a chute, and the chute is communicated with the insertion hole;