Equipment box of external circulation ventilation duct

Abstract

The utility model provides an equipment box of an external circulation ventilation duct. When the circuit module in the equipment box works, the open cover is provided with an external air inlet connected with the air inlet of the fan module, so that the fan module extracts air outside the box body and conveys the air to the ventilating duct, and heat generated by the circuit module is conducted to the heat-conducting fin, so that air flow supplied by the fan module passes through the heat-conducting fin; therefore, a heat dissipation flow channel in the box body is single, hot air can smoothly and quickly leave the interior of the equipment, continuous circulation of the hot air in the box body is avoided, and stable use of performance and functions of the circuit module is ensured. The utility model belongs to the technical field of test equipment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of test equipment, especially relate to a device box of outer circulation air duct. BACKGROUND

[0002] With the pursuit and promotion of the performance and function of consumer electronic products, test equipment and the like, the heat generation thereof also increases, and therefore, in order to stabilize the performance and function thereof and their potential performance, a heat dissipation structure becomes one of the important components thereof. The main circuit elements of the present consumer electronic products and test equipment are generally arranged in a housing or a case, and the heat dissipation structure is generally arranged in the housing or the case along with the position of the main circuit elements, resulting in continuous circulation of hot air in the housing or the case, thereby affecting the performance and even making individual functions unable to be normally used. SUMMARY

[0003] The utility model aims at providing a device box of outer circulation air duct to solve the technical problem in the background art.

[0004] The device box of outer circulation air duct comprises a box body, the top of the box body is open, a carrier for placing a circuit module is arranged in the box body, a fan module is arranged on the carrier, an air duct with heat conduction function is arranged at the air outlet of the fan module, a plurality of heat conduction fins are arranged in the air duct, the outer wall of the air duct is used for contacting the heat generation part of the circuit module, a heat dissipation air inlet is arranged at the side of the box body and is communicated with the air duct, and the open cover is provided with an external air inlet connected with the air inlet of the fan module.

[0005] According to the technical scheme, the utility model has the following beneficial effects:

[0006] 1. When the circuit module works, the external air inlet connected with the air inlet of the fan module is arranged at the open cover, so that the fan module draws the air outside the box body and sends it to the air duct, the heat generated by the circuit module is conducted to the heat conduction fins, the air flow supplied by the fan module rubs against the heat conduction fins, so that the air flow sends the heat out of the box body through the heat dissipation air inlet, and therefore, the heat dissipation flow path in the box body is single, the hot air can smoothly and quickly leave the inside of the equipment, the continuous circulation of the hot air in the box body is avoided, and the performance and function of the circuit module can be stably used.

[0007] 2. The box body is a component of a test equipment, and the circuit module is a product to be tested. Since the heat dissipation flow path in the box body is single, the hot air does not continuously circulate in the box body, and therefore, the heat dissipation performance and different heat dissipation degrees can be accurately controlled, different heat dissipation environments can be simulated, and the performance of the circuit module in different stable states can be accurately tested.

[0008] In order to further optimize the above technical solutions, in the case of no conflict, one or more of the following embodiments can be combined.

[0009] In some embodiments, the fan module is detachably arranged on the carrier by magnetic attraction;

[0010] According to the technical solution, since the fan module is installed on the carrier by magnetic attraction and contacts the heat generating part of the circuit module, the fan module can be conveniently detached and installed when testing different circuit modules, and the fan module can drive the air duct to closely contact the heat generating part of the circuit module by magnetic force.

[0011] In some embodiments, the diameter of the heat dissipation air port is greater than the diameter of the air duct, and a wind guide frame is arranged between the heat dissipation air port and the air duct, the wind guide frame is provided with a wind passing channel connecting the heat dissipation air port and the air duct, and the bottom of the wind guide frame is provided with a support strip for standing on the circuit module;

[0012] According to the technical solution, when the carrier is placed on the circuit module of different heights, the height position of the air duct also changes, at this time, since the wind guide frame stands on the circuit module through the support strip, the wind guide frame adjusts the height according to the circuit module of different heights, thereby connecting the air duct of different heights and the heat dissipation air port of fixed height through the wind passing channel, and in addition, when the wind passing channel is at different heights, the wind guide frame can block the hot air from entering the heat dissipation air port by the side wall.

[0013] In some embodiments, the wind guide frame is floatingly arranged on the cover by means of the equal-height screw, so that when the cover is placed on the top of the box body, the wind guide frame is located between the heat dissipation air port and the air duct;

[0014] According to the technical solution, after the cover is opened from the top of the box body, the cover can drive the wind guide frame to move away from the circuit module, thereby facilitating the removal of the circuit module from the box body.

[0015] In some embodiments, when the cover is placed on the top of the box body, the cover is provided with a lock catch for locking and fixing on the top of the box body;

[0016] According to the technical solution, after the cover is placed on the top of the box body, the wind guide frame can be stably and firmly located between the heat dissipation air port and the air duct.

[0017] In some embodiments, the equal-height screw is provided with a spring for pushing the wind guide frame downward;

[0018] According to the technical solution, after the cover is placed on the top of the box body, the wind guide frame can be pushed by the spring, thereby preventing the wind guide frame from shaking between the heat dissipation air port and the air duct.

[0019] In some embodiments, the support strip is provided with scratch-proof foam for contacting the circuit module; according to the technical scheme, the support strip can avoid scratching the circuit module.

[0020] In some embodiments, the outer air inlet is provided with a compressively deformable sealing ring, and the outer air inlet is connected to the air inlet of the fan module through the sealing ring.

[0021] According to the technical scheme, the fan module can stably extract the air outside the box body and deliver it to the ventilation channel.

[0022] In some embodiments, the top of the heat-conducting sheet is connected to the top inside the ventilation channel, and the bottom of the heat-conducting sheet is connected to the bottom inside the ventilation channel, so as to form a plurality of air-venting channels inside the ventilation channel.

[0023] According to the technical scheme, the air flow supplied by the fan module can efficiently pass through the heat-conducting sheet, thereby efficiently taking away the heat.

[0024] In some embodiments, the bottom end of the ventilation channel is provided with a heat-conducting bottom plate for contacting the heat-generating part of the circuit module.

[0025] According to the technical scheme, the heat generated by the circuit module can be evenly and efficiently conducted to each heat-conducting sheet. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments in the present application, the following will briefly describe the drawings and labels used in the description of the specific embodiments.

[0027] Fig. 1 is a structural schematic diagram of the present application;

[0028] Fig. 2 is a structural schematic diagram of the ventilation channel of the present application;

[0029] Fig. 3 is a structural schematic diagram of the air guide frame of the present application.

[0030] REFERENCE NUMERALS:

[0031] 1, box body; 11, heat dissipation air inlet; 2, cover; 21, outer air inlet; 22, lock catch; 23, sealing ring; 3, carrier; 4, fan module; 41, ventilation channel; 42, heat-conducting sheet; 43, air-venting channel; 44, heat-conducting bottom plate; 45, air outlet; 46, air inlet; 5, air guide frame; 51, air passing channel; 52, support strip; 53, high screw. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the following will refer to the drawings and list specific embodiments.

[0033] As Figs. 1 to 3 shown in the drawings, the embodiment provides an equipment box of an outer circulation air duct, which comprises a box body 1, the side of the box body 1 is provided with a heat dissipation air port 11, and the top of the box body 1 is provided with an open cover 2.

[0034] A carrier 3 for placing a circuit module is mounted in the box body 1, a fan module 4 is mounted on the carrier 3, the fan module 4 is detachably arranged on the carrier 3 by magnetic adsorption, an air outlet 45 of the fan module 4 is provided with a heat dissipation air duct 41 having a heat conduction function, a plurality of heat conduction fins 42 are arranged in the heat dissipation air duct 41, the top of the heat conduction fin 42 is connected with the top in the heat dissipation air duct 41, the bottom of the heat conduction fin 42 is connected with the bottom in the heat dissipation air duct 41, so as to form a plurality of air flow channels 43 in the heat dissipation air duct 41, and a heat conduction bottom plate 44 is arranged at the bottom end of the heat dissipation air duct 41, which is used for contacting with the heat generating part of the circuit module.

[0035] The caliber of the heat dissipation air port 11 is larger than that of the heat dissipation air duct 41, a wind guide frame 5 is floatingly arranged on the open cover 2 by means of an equal height screw 53, so that when the open cover 2 is covered on the top of the box body 1, the wind guide frame 5 is located between the heat dissipation air port 11 and the heat dissipation air duct 41, the equal height screw 53 is provided with a spring for pushing down the wind guide frame 5, the wind guide frame 5 is provided with an air passing duct 51 for connecting the heat dissipation air port 11 and the heat dissipation air duct 41, the bottom of the wind guide frame 5 is provided with a support strip 52 for standing on the circuit module, and the support strip 52 is provided with scratch-proof foam for contacting with the circuit module.

[0036] When the open cover 2 is covered on the top of the box body 1, the open cover 2 is provided with a lock catch 22 for locking and fixing on the top of the box body 1. The open cover 2 is provided with an external air inlet 21, the external air inlet 21 is provided with a compressible sealing ring 23, when the open cover 2 is covered on the top of the box body 1, the external air inlet 21 is aligned with the air inlet 46 of the fan module 4, and the external air inlet 21 is connected with the air inlet 46 of the fan module 4 through the sealing ring 23.

[0037] The following is the use instruction of the equipment box described in the embodiment:

[0038] When the box 1 is used as a test space component of a test device, the circuit module is a product to be tested. The circuit module is placed on the carrier 3 and the test device is electrically connected with the circuit module; then, the fan module 4 is set on the carrier 3 by magnetic adsorption, at this time, the heat-conducting bottom plate 44 of the heat-conducting air duct 41 contacts with the heating part of the circuit module; then, the cover 2 is placed on the top of the box 1, and the cover 2 is locked and fixed on the top of the box 1 by the lock buckle 22, at this time, the air guide frame 5 is located between the heat dissipation air port 11 and the air duct 41, and the air guide frame 5 stands on the circuit module by the support strip 52, at this time, the air duct 51 connects the heat dissipation air port 11 and the air duct 41, according to the height of the circuit module, the air guide frame 5 blocks the hot air from entering the heat dissipation air port 11 by the side wall; at this time, the circuit module works, because the air inlet 46 of the fan module 4 is connected with the external air inlet 21, the fan module 4 extracts the air outside the box 1 and sends it to the air duct 41, the heat generated by the circuit module is conducted to the heat-conducting fin 42, the air flow supplied by the fan module 4 passes through the heat-conducting fin 42, so that the air flow sends the heat from the heat dissipation air port 11 to the outside of the box 1, thus, the heat dissipation flow channel in the box 1 is single, the hot air can smoothly and quickly leave the inside of the device, and the hot air is prevented from continuously circulating in the box 1.

Claims

1. An equipment box of an outer circulation ventilation channel, comprising a box body (1), the top of the box body (1) is an open cover (2), a carrier (3) for placing a circuit module is installed in the box body (1), characterized in that: The fan module (4) is mounted on the carrier (3), and the air outlet (45) of the fan module (4) is provided with a ventilation channel (41) having a heat conduction function, a plurality of heat conduction fins (42) are arranged in the ventilation channel (41), and the outer wall of the ventilation channel (41) is used to contact the heat generating parts of the circuit module; the side edge of the box body (1) is provided with a heat dissipation air inlet (11) in communication with the ventilation channel (41), and the cover (2) is provided with an external air inlet (21) connected with the air inlet (46) of the fan module (4).

2. An apparatus cassette for an outer loop air duct according to claim 1, wherein: The fan module (4) is detachably arranged on the carrier (3) by magnetic adsorption.

3. An apparatus cassette for an outer loop air duct according to claim 2, wherein: The caliber of the heat dissipation air inlet (11) is larger than that of the ventilation channel (41), and a wind guide frame (5) is arranged between the heat dissipation air inlet (11) and the ventilation channel (41), the wind guide frame (5) is provided with a wind passage (51) connecting the heat dissipation air inlet (11) and the ventilation channel (41), and the bottom of the wind guide frame (5) is provided with a support strip (52) used for standing on the circuit module.

4. An apparatus cassette for an outer loop air duct according to claim 3, wherein: The wind guide frame (5) is floatingly arranged on the cover (2) by means of the equal-height screw (53), so that when the cover (2) covers the top of the box body (1), the wind guide frame (5) is located between the heat dissipation air inlet (11) and the ventilation channel (41).

5. An apparatus cassette for an outer loop air duct according to claim 4, wherein: When the cover (2) covers the top of the box body (1), the cover (2) is provided with a lock catch (22) used for locking and fixing on the top of the box body (1).

6. An apparatus cassette for an outer loop air duct according to claim 5, wherein: The equal-height screw (53) is provided with a spring used for pushing down the wind guide frame (5).

7. An apparatus housing for an external loop air duct according to claim 3, wherein: The support strip (52) is provided with scratch-proof foam used for contacting the circuit module.

8. An external-circulation ventilation channel device box according to any one of claims 1 to 7, characterized in that: The external air inlet (21) is provided with a compressible sealing ring (23), and the external air inlet (21) is connected with the air inlet (46) of the fan module (4) through the sealing ring (23).

9. An enclosure for an external air cycle ventilation system according to any one of claims 1 to 7, wherein: The top of the heat conduction fin (42) is connected with the top in the ventilation channel (41), and the bottom of the heat conduction fin (42) is connected with the bottom in the ventilation channel (41), so that a plurality of wind guide channels (43) are formed in the ventilation channel (41).

10. An apparatus cassette for an outer loop air vent according to claim 9, wherein: The bottom end of the ventilation channel (41) is provided with a heat conduction bottom plate (44) used for contacting the heat generating parts of the circuit module.

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