CN219360328U - Fan housing structure for heat dissipation of 3D printer head - Google Patents

Abstract

The utility model relates to the technical field of 3D printers, and particularly discloses a fan cover structure for heat dissipation of a machine head of a 3D printer, which comprises an air inlet shell connected with a fan through an air supply pipeline, wherein the air inlet shell is provided with a pipeline insertion port, a first air outlet, a second air outlet and a third air outlet, the first air outlet, the second air outlet and the third air outlet are respectively aligned with a spray head, a heat dissipation part and a feeding part in a spray head assembly, the lower end of the air inlet shell is connected with a flow guide shell, the end part of the flow guide shell is aligned with the lower end of the air inlet shell, and the end part of the flow guide shell is provided with a fourth air outlet aligned with the first air outlet; this fan housing structure for 3D printer aircraft nose heat dissipation can dispel the heat and cool to shower nozzle and model both sides in step, has eliminated the temperature difference that shower nozzle and model exist, has improved the product quality of 3D printing.

Description

Fan housing structure for heat dissipation of 3D printer head

Technical Field

The utility model relates to the technical field of 3D printers, and particularly discloses a fan cover structure for heat dissipation of a 3D printer head.

Background

A 3D printer is a device for constructing an object by means of layer-by-layer printing using a bondable material (i.e., consumable material) such as powdered metal or plastic based on a digital model file. And a heat radiation assembly is required to be arranged on the machine head in the operation process of the 3D printer to cool the spray head and the model. At present, most of the heads of 3D printers are cooled by a fan arranged on a head seat, but the design of the heat dissipation structure not only influences the printing effect due to vibration of the fan in the operation process, but also causes poor heat dissipation effect on the spray head and the model due to overhigh temperature of a wind body sent by the fan because the heads are positioned in a high-temperature printer room.

The utility model patent with the application number of CN2022207405723 is a cooling device for a spray head assembly of a 3D printer, which is claimed before the applicant, and comprises an air supply shell fixedly arranged at the side of the spray head assembly and a heat dissipation fan arranged at the outer side of the printer body, wherein a telescopic air supply pipe assembly is connected between the heat dissipation fan and the air supply shell, the upper end of the air supply shell is communicated with the air supply pipe assembly, a first air outlet, a second air outlet and a third air outlet are formed in the air supply shell, which is close to the lower end of the side surface of the spray head assembly, and the first air outlet is arranged on the spray head in the Ji Pentou assembly, the second air outlet is arranged on a heat dissipation part in the Ji Pentou assembly, and the third air outlet is arranged on a feeding part in the Ji Pentou assembly. The cooling device disclosed by the patent adopts a mode of fan external installation to extract external low-temperature air, and then three groups of air outlets at the lower end of the air supply shell are respectively blown to a feeding part, a radiating part and a nozzle in the nozzle assembly, so that the defect that the existing fan is installed on a headstock to conduct heat radiation is effectively overcome. However, the air supply housing disclosed in the patent can only blow to the nozzle assembly from one side when air is exhausted, which can cause the temperature of one side of the nozzle assembly, which is close to the air supply housing, to be lower than that of the other side, and especially when a temperature difference exists at the nozzle, the temperature of two sides of the model is inconsistent, so that the quality of the printed model is affected. Based on this, the present application has redesigned a fan housing structure for 3D printer head heat dissipation that can solve the above-mentioned technical problem to the not enough of structural design of air supply casing among the above-mentioned 3D printer shower nozzle subassembly cooling device.

Disclosure of Invention

The utility model aims to provide a fan cover structure for cooling a 3D printer head, which aims to solve the structural defect of an air supply shell in a cooling device of a 3D printer nozzle assembly, so that the temperature difference exists at two sides of a nozzle during air cooling and heat dissipation, thereby influencing the quality of products.

The utility model is realized by the following technical scheme:

the utility model provides a fan housing structure for 3D printer aircraft nose heat dissipation, includes the air inlet casing that is connected with the fan through the air supply pipeline, set up pipeline interface, first air outlet, second air outlet and third air outlet on the air inlet casing, first air outlet, second air outlet and third air outlet aim at shower nozzle, radiator unit and the pay-off part setting in the shower nozzle subassembly respectively, the lower extreme of air inlet casing is connected with the water conservancy diversion casing, and the tip of water conservancy diversion casing aligns the setting with the lower extreme of air inlet casing, the tip of water conservancy diversion casing has been seted up and has been aligned fourth air outlet with first air outlet.

As the specific arrangement of the scheme, the diversion shell is in a U-shaped structure.

As a specific setting of the scheme, the air inlet shell and the guide shell are integrally formed or formed in a seamless connection mode.

As the specific setting of above-mentioned scheme, the second air outlet comprises a plurality of bar mouths that set up from top to bottom interval, and bar mouths level sets up and aligns with the fin on the radiator unit.

As a specific setting of the scheme, the fan is arranged outside the heat preservation cavity of the 3D printer.

As a further setting of above-mentioned scheme, the inside of air inlet casing is provided with the division board, the upper end of division board extends to pipeline interface below, and the lower extreme extends to between first air outlet, the second air outlet, and the lower extreme of division board is connected with the air-out lateral wall of air inlet casing. The arrangement of the partition plate can prevent most of cooling air from being discharged from the third air outlet and the second air outlet completely, so that the cooling effect on the spray head and the printing model is influenced.

The beneficial effects are that:

1. the fan cover structure for the heat radiation of the 3D printer head disclosed by the utility model not only effectively solves the problem of forming quality easily caused by vibration of the fan when the traditional printer head is directly installed with the fan for heat radiation, but also can cool each part of the nozzle assembly better and more uniformly by the fed cold air, and improves the 3D printing effect.

2. This fan housing for 3D printer aircraft nose heat dissipation is still through setting up the water conservancy diversion casing of a U font at the lower extreme of air inlet casing to set up the fourth air outlet that aligns with first air outlet at the tip of water conservancy diversion casing, when dispelling the heat to the shower nozzle in the shower nozzle subassembly, the both sides of shower nozzle can be blown respectively to the cold wind that send out in first air outlet and the fourth air outlet, thereby can dispel the heat and cool to shower nozzle and model both sides in step, eliminated the temperature difference that shower nozzle and model exist, further improved the product quality of 3D printing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a 3D printer according to the present utility model;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 3 is a schematic view of a first angular perspective structure of a fan housing according to the present utility model;

FIG. 4 is a schematic view of a second perspective view of a fan housing according to the present utility model;

fig. 5 is a perspective cross-sectional view of a fan housing in the present utility model.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will now be described in detail with reference to the accompanying drawings 1-5, and in conjunction with examples.

Example 1

Embodiment 1 discloses a fan housing structure for heat dissipation of a 3D printer head, and the following describes the fan housing structure in combination with the overall structure of the 3D printer.

Referring to fig. 1 and 2, the 3D printer includes a box assembly 2, the box assembly 2 has a constant temperature heat preservation chamber formed therein, a printer head 3 and a head moving mechanism 4 are disposed in the constant temperature heat preservation chamber, and a fan housing 1 is fixedly installed at the printer head 3. Meanwhile, a fan (not shown in the figure) is arranged outside the constant temperature heat preservation cavity, an air supply pipeline 5 which extends into the constant temperature heat preservation cavity and is connected with the fan housing 1 is connected to the fan, and cold air sent by the fan is discharged into the fan housing 1 through the action of the air supply pipeline 5.

Referring to fig. 3 and 4, the fan housing 1 includes an air intake housing 101 having a rectangular parallelepiped shape provided in a vertical direction of the head assembly, and the air intake housing 101 is fixedly mounted on a headstock of the printer head 3 through a coupling member. A U-shaped guide housing 102 is connected to the lower end of the air inlet housing 101, and the end of the guide housing 102 is aligned with the lower end of the air inlet housing 101. The air intake housing 101 and the air guide housing 102 may be integrally formed or may be formed by seamless connection.

Referring to fig. 2 and 3, a pipe plug-in port 103 is formed at the upper end of the air inlet housing 101, and the end of the air supply pipe 5 is connected with the plug-in port 103, so that cold air outside the constant temperature and heat preservation cavity of the 3D printer is supplied to the air inlet housing 101. A first air outlet 104, a second air outlet 105 and a third air outlet 106 are sequentially arranged on the side surface of the air inlet shell 101 facing the spray head assembly from bottom to top. The first air outlet 104 is disposed at the bottommost end of the air inlet housing 101 and is aligned with the nozzles in the nozzle assembly 301. The second air outlet 105 is composed of a plurality of strip-shaped openings arranged at intervals from top to bottom, and the strip-shaped openings are arranged horizontally, so that each strip-shaped opening is aligned with a heat sink on a quasi-heat-dissipating component in the spray head assembly 301. Referring to fig. 2 and 4, the third air outlet 106 is elongated and vertically elliptical in shape, and the third air outlet 106 is aligned with the feeding member in the nozzle assembly 301. A fourth air outlet 107 is provided at an end of the guide housing 102, and the fourth air outlet 107 is aligned with the first air outlet 104.

In the 3D printing process, the fan housing structure disclosed in this embodiment 1 pumps in cold air through the fan disposed outside the constant temperature heat preservation chamber and makes the cold air enter the air inlet housing 101 along the air supply duct 5, then part of the cold air is sequentially sent out from the third air outlet 106, the second air outlet 105 and the first air outlet 104, respectively performs air cooling and heat dissipation on the feeding component, the heat dissipation component and the spray head in the spray head assembly 301, and the other part of the cold air is sent out from the fourth air outlet 107 along the guide housing 102, so that the sent cold air performs air cooling and heat dissipation on the other side of the spray head in the spray head assembly 301, thereby making both sides of the spray head in the spray head assembly and the printing model uniformly cool, so as to eliminate the temperature difference between the spray head and both sides of the printing model in the 3D printer process, and thereby improving the 3D printing effect.

Example 2

Embodiment 2 discloses a fan housing structure for heat radiation of a 3D printer head, which is modified based on embodiment 1, and the same points as embodiment 1 will not be described again, and the difference is referred to fig. 5.

In embodiment 2, a partition plate 108 is further provided inside the air intake housing 101, the upper end of the partition plate 108 extends to a position below the duct insertion port 103, the lower end thereof extends to a position between the second air outlet 105 and the first air outlet 104, and the lower end of the partition plate 108 is seamlessly connected to the air outlet side wall of the air intake housing 101.

In embodiment 2, the cold air entering the air inlet housing 101 is divided into two parts by the arrangement of the dividing plate 108, wherein one part is discharged from the third air outlet 106 and the second air outlet 105 to cool the feeding component and the heat dissipation component, and the other part is discharged from the first air outlet 104 and the fourth air outlet 107 to cool the two sides of the spray head and the printing model uniformly, so that the cooling effect on the spray head and the printing model can be prevented from being influenced by discharging most of cooling air from the third air outlet 106 and the second air outlet 105 in embodiment 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (6)

1. The utility model provides a fan housing structure for 3D printer aircraft nose heat dissipation, includes the air inlet casing that is connected with the fan through the air supply pipeline, set up pipeline interface, first air outlet, second air outlet and third air outlet on the air inlet casing, first air outlet, second air outlet and third air outlet aim at shower nozzle, radiator unit and the pay-off part setting in the shower nozzle subassembly respectively, its characterized in that, the lower extreme of air inlet casing is connected with the water conservancy diversion casing, and the tip of water conservancy diversion casing aligns the setting with the lower extreme of air inlet casing, the tip of water conservancy diversion casing has seted up the fourth air outlet that aligns with first air outlet.

2. The fan housing structure for heat dissipation of a 3D printer head of claim 1, wherein the flow guiding housing is provided in a U-shaped configuration.

3. The fan cover structure for heat dissipation of a 3D printer head according to claim 1 or 2, wherein the air inlet housing and the air guiding housing are integrally formed or formed in a seamless connection manner.

4. The fan cover structure for heat dissipation of a 3D printer head according to claim 1, wherein the second air outlet is composed of a plurality of strip-shaped openings arranged at intervals from top to bottom, and the strip-shaped openings are horizontally arranged and aligned with the heat dissipation fins on the heat dissipation part.

5. The fan housing structure for heat dissipation of a 3D printer head of claim 1, wherein the fan is disposed outside a thermal chamber of the 3D printer.

6. The fan cover structure for heat dissipation of a 3D printer head according to claim 1, wherein a partition plate is disposed inside the air inlet housing, an upper end of the partition plate extends below the pipe insertion port, a lower end of the partition plate extends between the first air outlet and the second air outlet, and a lower end of the partition plate is connected with an air outlet side wall of the air inlet housing.