Heat dissipation box of 3D printing equipment

Abstract

The utility model discloses a heat dissipation box of 3D printing equipment, which comprises a box body, an air inlet and an air outlet are arranged on the box body, a fan is fixed in the box body, a plurality of heat exchangers are arranged between the air inlet and an inlet of the fan, the heat exchangers are liquid cooling heat exchangers, and the air inlet and the air outlet are communicated with each other. The heat exchangers are communicated with the air inlet, cooling liquid connectors of the heat exchangers are communicated with a preset circulating water cooling machine, an outlet of the draught fan is communicated with the air outlet, when the draught fan is started, airflow is sucked in through the air inlet, and the airflow is exhausted through the draught fan and the air outlet after sequentially passing through the heat exchangers to be cooled. The heat exchanger is reasonable in layout in the box, compact in structure and capable of improving heat exchange efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation device, especially relates to a heat dissipation box of 3D printing equipment. BACKGROUND

[0002] With the continuous improvement of 3D printing equipment technology, the application of metal 3D printing is more and more extensive, and the related process is more mature, in practical application, a large amount of heat is generated when high-power laser sinters powder, which makes the temperature in the closed environment of forming chamber, air path pipeline, filter and the like in the printing equipment rise sharply, and the long-time high-temperature environment can damage the components in the equipment, and further cause functional failure, the prior art is to add a centrifugal fan in the 3D printing equipment, and the centrifugal fan itself generates heat, and the centrifugal fan is placed in the high-temperature air flow, which can cause the centrifugal fan to alarm and stop, in addition, the forming base plate, scraper assembly and the like in the forming chamber are affected by the long-time high temperature, and the hardware of the mechanism can be heated, which directly affects the precision of the printed parts. SUMMARY

[0003] The utility model wants to solve the technical problem in view of prior art's insufficient, provides a heat dissipation box of 3D printing equipment, which is reasonable in layout, compact in structure and can improve heat exchange efficiency.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme.

[0005] A heat dissipation box of 3D printing equipment, comprising a box body, an air inlet and an air outlet are arranged on the box body, a fan is fixed in the box body, a plurality of heat exchangers are arranged between the air inlet and the inlet of the fan, the heat exchangers are liquid cooling heat exchangers, and the cooling liquid interfaces of the heat exchangers are communicated with a preset circulating water cooler, the outlet of the fan is communicated with the air outlet, when the fan is started, air is sucked in through the air inlet, and the air is cooled by the plurality of heat exchangers in turn and then discharged through the fan and the air outlet.

[0006] Preferably, the air inlet is located at the front end of the box body, and the air outlet is located at the top end of the box body.

[0007] Preferably, three heat exchangers are arranged in the box body at equal intervals.

[0008] Preferably, a pipeline compensator is arranged between the outlet of the fan and the air outlet.

[0009] Preferably, the fan is a centrifugal fan.

[0010] Preferably, a shock-absorbing pad is arranged between the bottom of the fan and the bottom of the box body.

[0011] Preferably, a lid is fixed on the top of the box, and a sealing gasket is arranged between the lid and the top edge of the box.

[0012] Preferably, at least one coolant detector is fixed on the bottom of the box, and the coolant detector is used to send an electric signal when it detects the leaked coolant of the heat exchanger.

[0013] Preferably, two coolant detectors are fixed on the bottom of the box, and the two coolant detectors are respectively close to the front and rear ends of the box.

[0014] Preferably, an aviation socket is arranged on the box.

[0015] The utility model discloses a heat dissipation box of 3D printing equipment, the air inlet on the box is used for inhaling the hot air generated in the laser sintering process of 3D printing equipment, and the heat exchanger adopts a liquid cooling heat exchanger, which drives the coolant to circulate through a plurality of heat exchangers by a preset circulating water cooling machine. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a side view of the heat dissipation box of the utility model 3D printing equipment. Figure One ;

[0017] Figure 2 It is a side view of the heat dissipation box of the utility model 3D printing equipment. Figure Two ;

[0018] Figure 3 It is a sectional view of the heat dissipation box of the utility model 3D printing equipment. DETAILED DESCRIPTION

[0019] The utility model will be described in more detail in combination with the drawings and examples.

[0020] The utility model discloses a heat dissipation box of 3D printing equipment, combining Figures 1 to 3As shown, it comprises a box body 1, the box body 1 is provided with an air inlet 10 and an air outlet 11, a fan 2 is fixed in the box body 1, a plurality of heat exchangers 3 are arranged between the air inlet 10 and the inlet of the fan 2, the heat exchanger 3 is a liquid cooling heat exchanger, and the cooling liquid interface 30 of the heat exchanger 3 is communicated with a preset circulating water cooler, the outlet of the fan 2 is communicated with the air outlet 11, when the fan 2 is started, the airflow is sucked through the air inlet 10, and the airflow is cooled after passing through the plurality of heat exchangers 3 in turn, and then is discharged through the fan 2 and the air outlet 11.

[0021] In the above structure, the air inlet 10 on the box body 1 is used to suck the hot air generated in the laser sintering process of the 3D printing equipment, the heat exchanger 3 adopts a liquid cooling heat exchanger, which drives the cooling liquid to circulate through the plurality of heat exchangers 3 by using a preset circulating water cooler, when the fan 2 is started, the hot air passes through the plurality of heat exchangers 3 and exchanges heat, and the airflow after cooling is discharged through the air outlet 11 under the drive of the fan 2, the plurality of heat exchangers 3 are arranged in turn between the air inlet 10 and the inlet of the fan 2, so that the layout in the box is reasonable, the overall structure is more compact, and in addition, the heat exchange efficiency can be effectively improved based on the liquid cooling heat dissipation mode, and the application requirement is better met.

[0022] In order to make the air inlet and outlet layout reasonable, in the embodiment, please refer to Figure 3 , the air inlet 10 is located at the front end of the box body 1, and the air outlet 11 is located at the top end of the box body 1.

[0023] As a preferred mode, three heat exchangers 3 distributed at equal intervals are arranged in the box body 1. In actual application, the number of heat exchangers 3 is not limited to three, and can be other numbers.

[0024] In the embodiment, a plurality of heat exchangers are arranged in the box body in an array, the pipeline in the heat exchanger flows with cooling liquid, the cooling liquid is circulated and delivered to the inside of the heat exchanger by the water cooler, the cooling liquid and the hot air passing through the heat exchanger are continuously exchanged, the heat in the hot air is taken away, and the heat exchange and cooling effect is achieved, the air containing heat enters the box body, is heat exchanged and cooled by at least three heat exchangers, and then is delivered out through the fan, the air path design is reasonable, and the heat exchange efficiency is high.

[0025] In order to better communicate the fan 2 and the air outlet 11, in the embodiment, a pipeline compensator 4 is communicated between the outlet of the fan 2 and the air outlet 11. As a preferred mode, the fan 2 is a centrifugal fan.

[0026] To provide shock absorption and cushioning, in this embodiment, a shock-absorbing pad 5 is sandwiched between the bottom of the fan 2 and the bottom of the housing 1. Furthermore, a cover 12 is fixed to the top of the housing 1, and a sealing gasket 13 is sandwiched between the cover 12 and the top edge of the housing 1.

[0027] In the above structure, the centrifugal fan is a high-efficiency, high-speed, high-flow-rate, sealed explosion-proof fan. The bottom of the fan is equipped with shock-absorbing pads to effectively prevent internal parts from loosening and malfunctioning due to vibration caused by high-speed operation. The fan outlet is connected with a telescopic pipe with a compensator to effectively solve the problem of pipe pulling caused by fan vibration. A heat exchanger is installed on the side of the fan to ensure that the fan will not overheat due to prolonged operation, causing alarms and failure to operate.

[0028] In this embodiment, at least one coolant detector 6 is fixed to the bottom of the housing 1. The coolant detector 6 is used to emit an electrical signal when it detects coolant leakage from the heat exchanger 3. Specifically, two coolant detectors 6 are fixed to the bottom of the housing 1, with the two detectors 6 located near the front and rear ends of the housing 1, respectively. In practical applications, the coolant detector 6 can be a liquid level sensor, used to sense cooling water dripping into the housing 1. The housing contains two coolant detectors, which can be used to detect coolant leakage caused by improper installation of connectors or aging due to prolonged use. The fan housing is equipped with a quick-connect pipe fitting clamp for quick and convenient connection to the air duct of the 3D printing equipment, and a quick-connect coolant circulation inlet / outlet interface for easy connection to the coolant inlet / outlet.

[0029] To facilitate connection to the power supply and controller, in this embodiment, the housing 1 is equipped with an aviation socket 7.

[0030] Compared to existing technologies, this invention installs the housing into the air circulation duct of the 3D printing equipment. Hot air flows into the fan housing from the air inlet, first undergoes heat exchange through three heat exchangers, and then is delivered by the fan and exited through the pipe compensator. Coolant detectors are installed on both sides of the bottom of the fan housing along the long direction to ensure that abnormal coolant leaks can be detected in time. A heat exchanger is installed on one side of the fan, and shock-absorbing pads are installed on the bottom of the fan mounting plate to ensure stable long-term operation. This fan housing has a simple structure while providing good heat dissipation, and is easy and convenient to install and connect with the 3D printing equipment.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A heat dissipation box of a 3D printing device, characterized in that, The utility model provides a kind of air cooling device, including box (1), the box (1) is equipped with air inlet (10) and air outlet (11), the fan (2) is fixed in the box (1), the air inlet (10) and the inlet of the fan (2) are equipped with multiple heat exchangers (3), the heat exchanger (3) is liquid cooling heat exchanger, and the cooling liquid interface (30) of the heat exchanger (3) is communicated with the preset circulating water cooling machine, the outlet of the fan (2) is communicated with the air outlet (11), when the fan (2) starts, air current is inhaled by the air inlet (10), air current is cooled in turn after passing multiple heat exchangers (3), and then is discharged by the fan (2) and the air outlet (11).

2. The heat dissipation box of the 3D printing device according to claim 1, wherein, The air inlet (10) is located at the front end of the box (1), and the air outlet (11) is located at the top end of the box (1).

3. The heat dissipation box of the 3D printing device according to claim 1, wherein, Three heat exchangers (3) are evenly distributed in the box (1).

4. The heat dissipation case of the 3D printing apparatus according to claim 1, wherein, A pipeline compensator (4) is communicated between the outlet of the fan (2) and the air outlet (11).

5. The heat dissipation case of the 3D printing apparatus according to claim 1, wherein, The fan (2) is a centrifugal fan.

6. The heat dissipation case of the 3D printing apparatus according to claim 1, wherein, A shock-absorbing pad (5) is clamped between the bottom of the fan (2) and the bottom of the box (1).

7. The heat dissipation box of the 3D printing device according to claim 1, wherein, A box cover (12) is fixed to the top of the box (1), and a sealing pad (13) is clamped between the box cover (12) and the top edge of the box (1).

8. The heat dissipation box of the 3D printing device according to claim 1, wherein, At least one cooling liquid detector (6) is fixed to the bottom of the box (1), and the cooling liquid detector (6) is used to send an electrical signal when it detects the leakage of cooling liquid from the heat exchanger (3).

9. The heat dissipation box of the 3D printing device according to claim 8, wherein, Two cooling liquid detectors (6) are fixed to the bottom of the box (1), and the two cooling liquid detectors (6) are respectively close to the front and rear ends of the box (1).

10. The heat dissipation case of the 3D printing apparatus according to claim 1, wherein, An aviation socket (7) is provided on the box (1).

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