CN214111507U - 3D printer and shower nozzle heat radiation structure thereof - Google Patents

Abstract

The utility model provides a 3D printer and shower nozzle heat radiation structure thereof, shower nozzle heat radiation structure include centrifugal fan and radiator, the radiator with centrifugal fan sets up side by side and is located the coplanar, the radiator includes a plurality of interval arrangement's heat radiation fins, and arbitrary two are adjacent be formed with the clearance between the heat radiation fins, the clearance is close to centrifugal fan's one end is the air inlet, the air inlet intercommunication centrifugal fan's gas outlet. The utility model provides a shower nozzle heat radiation structure, compared with the prior art, the utility model discloses having changed original axial fan into centrifugal fan, having set up a plurality of heat radiation fins and centrifugal fan on coplanar, reduced heat radiation fins and to the produced hindrance of air current flow, increased the space of air current circulation, greatly improved radiating performance and efficiency.

Description

3D printer and shower nozzle heat radiation structure thereof

Technical Field

The utility model belongs to the technical field of the 3D printer, more specifically say, relate to a 3D printer and shower nozzle heat radiation structure thereof.

Background

The common 3D printer nozzle heat dissipation structure is a mode that an axial flow fan is installed above heat dissipation fins, and due to the flow field characteristics of the axial flow fan, the shape of the fins and other reasons, a large amount of backflow can occur when the fan works. In addition, in the structure of the fan and the heat dissipation fins, because the fins close to the middle part of the fan cannot effectively perform heat convection with air flow, the heat dissipation performance of the structure is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 3D printer and shower nozzle heat radiation structure thereof to solve the relatively poor problem of heat dispersion that exists among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a shower nozzle heat radiation structure, be applied to in the 3D printer, shower nozzle heat radiation structure includes centrifugal fan and radiator, the radiator with centrifugal fan sets up side by side and is located the coplanar, the radiator includes a plurality of interval arrangement's heat radiation fins, and arbitrary two are adjacent be formed with the clearance between the heat radiation fins, the clearance is close to centrifugal fan's one end is the air inlet, the air inlet intercommunication centrifugal fan's gas outlet.

Furthermore, two ends of a gap between any two adjacent radiating fins are open, and an air outlet is formed at one end of the gap far away from the centrifugal fan.

And the connecting plate is used for sealing one end of the gap, which is far away from the centrifugal fan.

Further, the plurality of heat dissipation fins are composed of one or more of rectangular plates, arc-shaped plates and bent-shaped plates.

Further, the plurality of heat dissipation fins are all rectangular plates.

Further, a plurality of the heat dissipation fins are arranged in parallel with each other.

Further, the distances between two adjacent heat dissipation fins are equal.

Furthermore, the lengths of the plurality of heat dissipation fins are different, and a connecting line of one ends of the plurality of heat dissipation fins, which are close to the centrifugal fan, is arc-shaped.

Further, the radiator is of an integrated structure.

Another object of the utility model is to provide a 3D printer, it includes shower nozzle and above-mentioned shower nozzle heat radiation structure, shower nozzle heat radiation structure sets up on the shower nozzle.

The utility model provides a shower nozzle heat radiation structure's beneficial effect lies in: compared with the prior art, the utility model discloses having changed original axial fan into centrifugal fan, having set up a plurality of heat radiation fins and centrifugal fan on same plane, reduced heat radiation fins and to the produced hindrance of air current flow, increased the space of air current circulation, greatly improved radiating performance and efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a heat dissipation structure of a nozzle in the prior art, and a part of the structure is not shown;

fig. 2 is a first schematic structural diagram of a heat dissipation structure of a nozzle according to an embodiment of the present invention, and a part of the structure is not shown;

fig. 3 is a schematic structural diagram of a second heat dissipation structure of a showerhead provided in an embodiment of the present invention, a partial structure of which is not shown;

fig. 4 is a first schematic view of a heat dissipation fin according to an embodiment of the present invention;

fig. 5 is a schematic view of a second front view structure of a heat dissipation fin according to an embodiment of the present invention;

wherein, in the drawings, the reference numerals are mainly as follows:

1. an axial flow fan; 2. a centrifugal fan; 3. heat dissipation fins; 4. an air inlet; 5. an air outlet; 6. a connecting plate.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to fig. 3, a heat dissipation structure of a showerhead according to an embodiment of the present invention will be described. The heat dissipation structure of the nozzle comprises a centrifugal fan 2 and a heat sink provided with a plurality of heat dissipation fins 3. The plurality of radiating fins 3 are arranged at intervals, a gap is formed between every two adjacent radiating fins 3, one end of the gap, which is close to the centrifugal fan 2, is an air inlet 4, the air inlet 4 is communicated with an air outlet of the centrifugal fan 2, air flow generated by the centrifugal fan 2 flows to the gap and flows out of the gap, and the spray head is radiated through the flowing of the air flow. The air flow generated by the centrifugal fan 2 flows in the radial direction, the radiator and the centrifugal fan 2 are arranged side by side to be located on the same plane, and the radiating fins 3 are specifically arranged in the air outlet direction of the centrifugal fan 2, so that the obstruction of the radiating fins 3 on the air flow is reduced, and the radiating efficiency is improved.

Compared with the prior art, the original axial flow fan 1 is replaced by the centrifugal fan 2, and the plurality of radiating fins 3 and the centrifugal fan 2 are arranged on the same plane, namely, the air inlets of the channels formed among the radiating fins 3 are aligned with the air outlets of the centrifugal fan 2, so that the obstruction of the radiating fins 3 to the airflow flow is reduced, the airflow flowing space is increased, and the radiating performance and efficiency are greatly improved.

Specifically, referring to fig. 4, in the present embodiment, the heat dissipation fins 3 are rectangular plates, and the rectangular plates have the same shape and are arranged in parallel. The centrifugal fan 2 blows the generated air flow into the gaps between the heat dissipating fins 3, and preferably, the distance between every two adjacent heat dissipating fins 3 is designed to be equal, so that the flow rate of the air flow in each gap is more uniform.

Referring to fig. 4, in the present embodiment, both ends of each heat dissipation fin 3 are open, that is, the air flow enters from one end of the heat dissipation fin 3 close to the centrifugal fan 2 and exits from one end of the heat dissipation fin 3 far from the centrifugal fan 2.

Specifically, referring to fig. 5, as another embodiment of the present invention, the heat dissipation fins 3 may also be arc-shaped plates or bent plates. Can all select arc or the shaped plate that bends with all heat radiation fins 3, also can use arc, the shaped plate that bends and rectangular plate mixture. The shape of the heat sink fins 3 is selected according to the type and structure of the centrifugal fan 2. The air flow flows more smoothly in the rectangular plate-shaped heat dissipation fins 3, and the arc-shaped plates and the bent plates have better heat exchange coefficients. Therefore, the shape of the radiator fin 3 needs to be selected according to actual conditions. When selecting two or more of them combinations of arc, bending shaped plate, rectangular plate etc. together, then the radiating fin 3 of different shapes then needs different length, and need set up the longer radiating fin 3 of length in the position that is close to both sides edge, set up the shorter radiating fin 3 of length in the position that is close to the centre, the longer radiating fin 3 of both sides edge can block the air current and outwards flow, can reduce the loss of air current like this, improve radiating efficiency, it is required to explain that, length direction in this embodiment mean radiating fin 3 is from the direction that 4 one end of air inlet extended towards 5 one end of air outlet.

Referring to fig. 2, in the above-mentioned embodiment, two ends of the gap between adjacent heat dissipation fins 3 are open, an air inlet 4 is disposed at one end of the gap close to the centrifugal fan 2, and an air outlet 5 is disposed at one end of the heat dissipation fin 3 away from the centrifugal fan 2. In fact, the gap formed by the heat dissipation fins 3 is open on three sides, the two ends of the heat dissipation fins 3 can circulate air, and the top of the heat dissipation fins 3 is also open to the gap, so that the air can actually flow out from the top of the gap, but most of the air flows through the two ends of the gap, and therefore, the two ends of the gap are respectively regarded as the air inlet 4 and the air outlet 5.

Referring to fig. 3, the present invention further provides another specific embodiment, a connecting plate 6 is disposed at an end of the heat dissipating fin 3 away from the centrifugal fan 2, the connecting plate 6 seals an end of the gap away from the centrifugal fan 2, so that the air inlet 4 of the gap is still close to the end of the centrifugal fan 2, and the air outlet 5 is at the top of the gap. So arranged, the direction of the airflow flowing into the air inlet 4 and the direction of the airflow flowing out of the air outlet 5 form a certain included angle. The connecting plate 6 has the functions of blocking and guiding air flow. For the two air inlet and outlet modes, whether the connecting plate 6 is arranged at one end of the radiating fin 3 far away from the centrifugal fan 2 or not can be selected according to actual conditions and requirements.

Referring to fig. 3, in the present embodiment, the heat sink is an integrated structure, and the heat dissipation fins 3 and the connection plate 6 are integrally formed. The heat sink has heat dissipating fins 3 on the heat dissipating base board, which is installed on the casing of the nozzle together with the centrifugal fan 2, or may be formed directly with the casing, and the centrifugal fan 2 is installed on the casing at the position where the heat dissipating fins 3 are not installed.

The inventor to current heat dissipation scheme with the utility model discloses a heat radiation structure has tested, the analog structure of current heat dissipation scheme, and the analog temperature value of measuring point is 89.4 ℃, the utility model discloses a heat radiation structure's simulation result, the analog temperature of measuring point is 67.6 ℃. The lower performance that indicates of temperature value is better, consequently, the utility model discloses a heat radiation structure performance under current condition is obviously superior to current heat dissipation scheme.

It should be noted that, under different external conditions, such as air volume, air pressure, heat source heating temperature, heat source position, fan position, heat sink material, surface roughness, etc., temperature values at measurement points may be different.

Furthermore, the utility model provides a 3D printer, 3D printer includes shower nozzle and above-mentioned shower nozzle heat radiation structure, and shower nozzle heat radiation structure sets up on the shower nozzle. Due to the adoption of the spray head heat dissipation structure, the space for air flow circulation can be increased, and the heat dissipation performance and efficiency of the spray head are greatly improved, so that the performance of the whole 3D printer is improved.

Other structural designs of the 3D printer, such as the specific structures of the printing platform and the nozzle, are well known to those skilled in the art, and are not described herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Shower nozzle heat radiation structure is applied to in the 3D printer, its characterized in that includes:

a centrifugal fan; and

the radiator and the centrifugal fan are arranged side by side and are positioned on the same plane, the radiator comprises a plurality of radiating fins which are arranged at intervals, a gap is formed between any two adjacent radiating fins, one end of the gap, which is close to the centrifugal fan, is an air inlet, and the air inlet is communicated with an air outlet of the centrifugal fan.

2. The head heat dissipating structure of claim 1, wherein: two ends of a gap between any two adjacent radiating fins are open, and one end of the gap, which is far away from the centrifugal fan, is an air outlet.

3. The head heat dissipating structure of claim 1, wherein: and one end of the heat radiating fin, which is far away from the centrifugal fan, is provided with a connecting plate, and the connecting plate seals one end of the gap, which is far away from the centrifugal fan.

4. The head heat dissipation structure as claimed in any one of claims 1 to 3, wherein: the plurality of radiating fins are composed of one or more of rectangular plates, arc-shaped plates and bent plates.

5. The head heat dissipation structure of claim 4, wherein: the plurality of radiating fins are all rectangular plates.

6. The head heat dissipation structure of claim 5, wherein: the plurality of radiating fins are arranged in parallel.

7. The head heat dissipating structure of claim 6, wherein: the distances between two adjacent radiating fins are equal.

8. The head heat dissipation structure of claim 4, wherein: the lengths of the plurality of radiating fins are different, and a connecting line of one ends of the plurality of radiating fins close to the centrifugal fan is arc-shaped.

9. The head heat dissipation structure as claimed in any one of claims 1 to 3, wherein: the radiator is of an integrated structure.

10.3D printer, its characterized in that: the heat dissipation structure comprises a spray head and a spray head heat dissipation structure arranged on the spray head, wherein the spray head heat dissipation structure is as claimed in any one of claims 1 to 9.

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