CN217622234U

CN217622234U - Heat dissipation module of 3D printer

Info

Publication number: CN217622234U
Application number: CN202221077105.3U
Authority: CN
Inventors: 邓钊; 冀江华
Original assignee: Changzhou Mingren 3d Technology Co ltd
Current assignee: Changzhou Mingren 3d Technology Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-10-21
Anticipated expiration: 2032-05-07

Abstract

The utility model belongs to the technical field of 3D printing apparatus technique and specifically relates to a radiating module of 3D printer, the radiator is the heat-transfer pipe, the up end of heat-transfer pipe is supported and is had the heat transfer plate, the lower surface of heat transfer plate with the last fixed surface of frame is connected, the last surface connection of heat transfer plate has coolant liquid circulation system, coolant liquid circulation system is located outside the frame, the utility model provides a radiating module inequality with prior art technical scheme, the utility model provides a radiating module can convey the heat in the frame outside the frame along heat-transfer pipe and heat transfer plate, consequently compare in prior art and be applicable to enclosed type 3D printer more.

Description

Heat dissipation module of 3D printer

Technical Field

The utility model belongs to the technical field of 3D printing apparatus technique and specifically relates to a heat dissipation module of 3D printer.

Background

Two cooling fans are usually installed on a printing head of the 3D printer, one cooling fan is a throat cooling fan, the other cooling fan is a product cooling fan, the throat cooling fan is over against cooling fins outside the throat, and heat on the cooling fins is taken away through blowing flowing air. However, because the characteristics of the materials are different, some special materials can only be printed by a closed 3D printer, the temperature in the printing chamber rises along with the extension of the printing time of the printer, when the temperature reaches a certain degree, the temperature of the air blown to the heat dissipation fins by the throat heat dissipation fan is also high, the heat dissipation fins cannot be effectively cooled, the heat dissipation efficiency of the throat heat dissipation fan drops suddenly, and the printing head is blocked, so that the plug is caused.

The design of a heat dissipation module which can be applied to a closed 3D printer is a problem which needs to be solved urgently.

Disclosure of Invention

The utility model aims at: overcome not enough among the prior art, provide the radiating module of the higher 3D printer of heat transfer efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the heat dissipation module of the 3D printer comprises a frame, wherein a printing head is movably arranged in the frame and comprises a radiator and a printing head support, the radiator is sleeved outside a throat pipe and a conveying pipe, the printing head support is sleeved with the radiator, the radiator is fixedly connected to the printing head support and is a heat transfer pipe, the upper end face of the heat transfer pipe is abutted to a heat transfer plate, the lower surface of the heat transfer plate is fixedly connected with the upper surface of the frame, the upper surface of the heat transfer plate is connected with a cooling liquid circulation system, and the cooling liquid circulation system is located outside the frame.

Furthermore, the heat transfer pipe is of a winding structure formed by winding a heat transfer film.

Further, the radiator is connected with connecting piece detachable, set up a plurality of radiator connecting holes that run through the pipe wall on the radiator, the axis of a plurality of radiator connecting holes is located same horizontal plane and follows the radial setting of radiator, the connecting piece includes solid fixed ring one and solid fixed ring two, gu fixed ring one set is established on the outer wall of radiator, gu fixed ring two inserts and establishes on the inner wall of radiator, gu fixed ring one radially has seted up a plurality of solid fixed ring one connecting holes, gu fixed ring two radially has seted up a plurality of solid fixed ring two connecting holes, a plurality of solid fixed ring one connecting holes and a plurality of solid fixed ring two connecting holes with the radiator connecting hole phase-match, gu fixed ring two connecting holes are the screw hole, the connecting piece still includes a plurality of connecting bolts even, connecting bolt passes solid fixed ring one connecting hole, radiator connecting hole and solid fixed ring two connecting holes in proper order.

Further, a plurality of solid fixed ring fixed orificess that run through upper surface and lower surface are seted up to solid fixed ring one, the axis of solid fixed ring fixed orifices with gu fixed ring one's axis is parallel, a plurality of gu fixed ring a connecting hole along solid fixed ring angle settings such as axis, it still includes fixing bolt to beat printer head, the upper surface of beating printer head support is opened there are a plurality of support fixed orificess, fixing bolt passes solid fixed ring fixed orifices and support fixed orifices in proper order and realizes solid fixed ring one and beat printer head support's dismantlement and be connected.

Furthermore, the heat transfer plate comprises a heat transfer plate and a second heat transfer film, the lower surface of the heat transfer plate consists of a connecting area and a heat transfer area, the heat transfer plate is connected with the upper surface of the frame at the connecting area, and the second heat transfer film is detachably connected with the heat transfer area of the heat transfer plate.

Furthermore, the upper surface of the heat transfer plate is fixedly connected with an upper cover, a cavity is formed between the upper cover and the heat transfer plate, the upper cover comprises a water outlet end and a water inlet end, the water outlet end of the upper cover is sequentially connected with a water tank, a water pump and a cold bar through a water pipe, and the cold bar is connected to the water inlet end through a water pipe.

Furthermore, the upper surface of the throat pipe is fixedly connected with the lower surface of the second fixing ring.

Furthermore, a heat insulation sleeve is sleeved outside the lower end of the radiator, the upper surface of the heat insulation sleeve is detachably connected with the lower surface of the printing head support through bolts, the heat insulation sleeve is cylindrical, a through hole is formed in the lower surface of the heat insulation sleeve, the aperture of the through hole is matched with the outer diameter of the throat pipe, and the throat pipe penetrates through the through hole and is connected with the extrusion head.

Furthermore, a material pipe hole is formed in the outer wall of the radiator, the aperture of the material pipe hole is larger than the outer diameter of the material conveying pipe, and the material conveying pipe penetrates out of the radiator through the material pipe hole and is connected with the material bin.

Furthermore, be provided with on the lateral wall of solid fixed ring one with the axis looks vertically plane of solid fixed ring one connecting hole, gu fixed ring one the centre bore with gu the outer wall intercommunication of fixed ring one.

Adopt the technical scheme of the utility model beneficial effect is:

1. the utility model provides a with the radiating module that prior art technical scheme is inequality, the utility model provides a radiating module can convey the heat in the frame outside the frame along heat-transfer pipe and heat transfer plate, consequently compare in prior art and be applicable to closed 3D printer more.

2. The first fixing ring and the second fixing ring can fix the flexible heat transfer pipe on the printing head support, and the second fixing ring can be used as a fixing connecting piece of the heat transfer pipe and a fixing connecting piece of the throat pipe, so that the dual-purpose effect is achieved.

3. The utility model discloses in set up the radiation shield can avoid the heat to stretch to the frame from the heat-transfer pipe in, force the heat can only upwards transmit to the heat transfer plate, restriction heat transfer circuit promotes heat transfer efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments 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 that other drawings can be obtained according to these drawings without inventive labor. Wherein

Fig. 1 is a schematic view of the installation of the present invention;

FIG. 2 is a schematic view of the side mounting of the present invention;

FIG. 3 is a schematic structural view of a portion of the structure of the present invention at the print head;

FIG. 4 is a top view of a portion of the structure of the present invention at the printhead;

FIG. 5 is a schematic view of the installation of the middle part structure of the present invention;

fig. 6 is a cross-sectional view of fig. 5 according to the present invention;

fig. 7 is a schematic structural view of a first fixing ring of the present invention;

fig. 8 is a schematic structural view of a heat transfer tube according to the present invention.

1. A print head; 11. a heat transfer tube; 111. a radiator connection hole; 112. a feed pipe hole; 12. a heat transfer plate; 13. an upper cover; 131. a water outlet end; 132. a water inlet end; 141. a first fixing ring; 1411. a connecting hole of the fixing ring; 1412. a fixing hole of the fixing ring; 142. a second fixing ring; 143. a connecting bolt; 15. a throat; 2. a frame; 3. a material conveying pipe.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention. The utility model discloses utilize structural schematic diagram etc. to carry out the detailed description, the schematic diagram is the example only, and it should not restrict here the scope of the utility model protection. In addition, the actual fabrication process should include three-dimensional space of length, width and depth.

Referring to fig. 1 to 8, a heat dissipation module of a 3D printer includes a frame 2, a print head 1 is movably disposed in the frame 2, the print head 1 includes a heat sink and a print head 1 support, the heat sink is sleeved outside a throat 15 and a feed delivery pipe 3, the heat sink is fixedly connected to the print head 1 support, the heat sink is a heat transfer pipe 11, an upper end surface of the heat transfer pipe 11 is abutted to a heat transfer plate 12, a lower surface of the heat transfer plate 12 is fixedly connected to an upper surface of the frame 2, an upper surface of the heat transfer plate 12 is connected to a cooling liquid circulation system, and the cooling liquid circulation system is located outside the frame 2.

Referring to fig. 8, the heat transfer tube 11 is a coiled structure formed by winding a heat transfer film, preferably a graphite film, which has an excellent transverse thermal conductivity and a poor longitudinal thermal conductivity to transfer heat from bottom to top efficiently, and has an excellent wear resistance to enable the heat transfer tube 11 to have a long life even after frequent sliding friction of the heat transfer plate 12.

Referring to fig. 5, the heat sink is detachably connected to the connecting member, the heat sink is provided with a plurality of heat sink connecting holes 111 penetrating through a tube wall, axes of the plurality of heat sink connecting holes 111 are located on the same horizontal plane and are arranged along a radial direction of the heat sink, the connecting member includes a first fixing ring 141 and a second fixing ring 142, the first fixing ring 141 is sleeved on an outer wall of the heat sink, the second fixing ring 142 is inserted on an inner wall of the heat sink, the first fixing ring 141 is provided with a plurality of fixing ring connecting holes 1411 in the radial direction, the second fixing ring 142 is provided with a plurality of fixing ring connecting holes in the radial direction, the plurality of fixing ring connecting holes 1411 and the plurality of fixing ring two 142 connecting holes are matched with the heat sink connecting holes 111, the fixing ring two 142 connecting holes are threaded holes, the connecting member further includes a plurality of connecting bolts 143, and the connecting bolts 143 sequentially pass through the fixing ring connecting holes 1411, the heat sink connecting holes 111 and the fixing ring two 142 connecting holes. The first and

second fixing rings

141 and 142 clamp the heat transfer pipe 11 and the clamping by the connecting bolts 143 is detachable, meaning that the difficulty of detachment when exchanging the heat transfer pipe 11 is reduced.

Referring to fig. 7, a plurality of fixing ring-fixing holes 1412 penetrating through the upper surface and the lower surface are formed in the first fixing ring 141, an axis of the fixing ring-fixing hole 1412 is parallel to an axis of the first fixing ring 141, a plurality of fixing ring-connecting holes 1411 are arranged at equal angles along the axis of the first fixing ring 141, the printing head 1 further includes fixing bolts, a plurality of support-fixing holes are formed in the upper surface of the support of the printing head 1, and the fixing bolts sequentially penetrate through the fixing ring-fixing holes 1412 and the support-fixing holes to detachably connect the first fixing ring 141 and the support of the printing head 1. The fixing ring 141 connected with the heat transfer pipe 11 is detachably mounted on the upper surface of the holder of the print head 1 at the same time, that is, the heat transfer pipe 11 is made to be relatively stationary with respect to the holder of the print head 1, providing a stable working environment for the heat transfer pipe 11.

Referring to fig. 1 and 2, the heat transfer plate 12 includes a heat transfer plate 12 and a second heat transfer film, the lower surface of the heat transfer plate 12 is composed of a connection area and a heat transfer area, the heat transfer plate 12 is connected with the upper surface of the frame 2 at the connection area, and the second heat transfer film is detachably connected to the heat transfer area of the heat transfer plate 12. The second heat transfer film is preferably a graphite film, and because the graphite film has excellent horizontal heat transfer, a point heat source transferred from the heat transfer tube 11 can be rapidly dispersed to form a surface heat source on the heat transfer plate 12, thereby improving the heat dissipation efficiency.

Referring to fig. 1 and 2, an upper cover 13 is fixedly connected to an upper surface of the heat transfer plate 12, a cavity is formed between the upper cover 13 and the heat transfer plate 12, the upper cover 13 includes a water outlet end 131 and a water inlet end 132, the water outlet end 131 of the upper cover 13 is sequentially connected to a water tank, a water pump and a cold air exhaust through a water pipe, and the cold air exhaust is connected to the water inlet end 132 through a water pipe.

Referring to fig. 6, the upper surface of the throat 15 is fixedly connected to the lower surface of the second fixing ring 142, for example, by welding.

The lower section of the radiator is sleeved with a heat insulation sleeve, the upper surface of the heat insulation sleeve is detachably connected with the lower surface of the support of the printing head 1 through bolts, the heat insulation sleeve is cylindrical, a through hole is formed in the lower surface of the heat insulation sleeve, the aperture of the through hole is matched with the outer diameter of the throat pipe 15, and the throat pipe 15 penetrates through the through hole to be connected with the extrusion head. The heat insulation sleeve is arranged, so that heat can be prevented from spreading to the frame 2 from the heat transfer pipe 11 along the radial direction, the heat can be forced to be only upwards transferred to the heat transfer plate 12, a heat transfer circuit is limited, and the heat transfer efficiency is improved.

Referring to fig. 8, a feed pipe hole 112 is formed in the outer wall of the radiator, the distance between the lower surface of the second heat transfer film and the upper surface of the frame 2 is greater than or equal to the outer diameter of the feed pipe 3, the aperture of the feed pipe hole 112 is greater than the outer diameter of the feed pipe 3, and the feed pipe 3 firstly penetrates out of the radiator through the feed pipe hole 112 and then penetrates out of the gap between the second heat transfer film and the frame 2 to be connected with the bin.

Referring to fig. 7, a plane perpendicular to the axis of the first fixing ring connection hole 1411 is formed in the side wall of the first fixing ring 141 to facilitate the tightening of the connection bolt 143, and the center hole of the first fixing ring 141 is communicated with the outer wall of the first fixing ring 141 to facilitate the radial replacement when the heat transfer tube 11 is replaced, thereby avoiding the axial replacement and reducing the replacement difficulty.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a thermal module of 3D printer, includes the frame, mobilizable being provided with in the frame beats printer head, beat printer head and locate the outside radiator of choke and conveying pipeline and beat the printer head support including the cover, radiator fixed connection is on beating printer head support, its characterized in that: the radiator is a heat transfer pipe, the upper end surface of the heat transfer pipe is abutted with a heat transfer plate, the lower surface of the heat transfer plate is fixedly connected with the upper surface of the frame, the upper surface of the heat transfer plate is connected with a cooling liquid circulating system, and the cooling liquid circulating system is positioned outside the frame.

2. The heat dissipation module of the 3D printer of claim 1, wherein: the heat transfer pipe is of a coil structure formed by winding a heat transfer film.

3. The heat dissipation module of the 3D printer according to claim 2, wherein: the radiator is connected with connecting piece detachable, set up a plurality of radiator connecting holes that run through the pipe wall on the radiator, the axis of a plurality of radiator connecting holes is located same horizontal plane and follows the radial setting of radiator, the connecting piece includes solid fixed ring one and solid fixed ring two, gu fixed ring one set establishes on the outer wall of radiator, gu fixed ring two inserts and establishes on the inner wall of radiator, gu fixed ring one radially has seted up a plurality of solid fixed ring one connecting holes, gu fixed ring two radially has seted up a plurality of solid fixed ring two connecting holes, a plurality of solid fixed ring one connecting holes with a plurality of solid fixed ring two connecting holes with the radiator connecting hole phase-match, gu fixed ring two connecting holes are the screw hole, the connecting piece still includes a plurality of connecting bolts even, connecting bolt passes solid fixed ring one connecting hole, radiator connecting hole and solid fixed ring two connecting holes in proper order.

4. The heat dissipation module of the 3D printer of claim 3, wherein: the utility model discloses a printer, including solid fixed ring, printer head support, solid fixed ring is last to be seted up a plurality of solid fixed ring fixed orificess that run through upper surface and lower surface, the axis of solid fixed ring fixed orifices with gu fixed ring one is parallel, a plurality of gu fixed ring a connecting hole along solid fixed ring one's axis equal angle setting, it still includes fixing bolt to beat printer head, the upper surface of beating the printer head support is opened has a plurality of support fixed orificess, fixing bolt passes solid fixed ring fixed orifices and support fixed orifices in proper order and realizes solid fixed ring one and beat the dismantlement of printer head support and be connected.

5. The heat dissipation module of the 3D printer of claim 4, wherein: the heat transfer plate comprises a heat transfer plate and a second heat transfer film, the lower surface of the heat transfer plate consists of a connecting area and a heat transfer area, the heat transfer plate is connected with the upper surface of the frame at the connecting area, and the second heat transfer film is detachably connected with the heat transfer area of the heat transfer plate.

6. The heat dissipation module of the 3D printer of claim 5, wherein: the upper surface of the heat transfer plate is fixedly connected with an upper cover, a cavity is formed between the upper cover and the heat transfer plate, the upper cover comprises a water outlet end and a water inlet end, the water outlet end of the upper cover is sequentially connected with a water tank, a water pump and a cold bar through a water pipe, and the cold bar is connected to the water inlet end through a water pipe.

7. The heat dissipation module of the 3D printer of claim 6, wherein: the upper surface of the throat pipe is fixedly connected with the lower surface of the second fixing ring.

8. The heat dissipation module of the 3D printer of claim 7, wherein: the lower end of the radiator is sleeved with a heat insulation sleeve, the upper surface of the heat insulation sleeve is detachably connected with the lower surface of the printing head support through a bolt, the heat insulation sleeve is cylindrical, a through hole is formed in the lower surface of the heat insulation sleeve, the aperture of the through hole is matched with the outer diameter of the throat pipe, and the throat pipe penetrates through the through hole and is connected with the extrusion head.

9. The heat dissipation module of the 3D printer of claim 8, wherein: the feed pipe is characterized in that a feed pipe hole is formed in the outer wall of the radiator, the aperture of the feed pipe hole is larger than the outer diameter of the feed pipe, and the feed pipe penetrates out of the radiator through the feed pipe hole and is connected with the feed bin.

10. The heat dissipation module of the 3D printer of claim 9, wherein: the side wall of the first fixing ring is provided with a plane perpendicular to the axis of a connecting hole of the first fixing ring, and the center hole of the first fixing ring is communicated with the outer wall of the first fixing ring.