CN112248657B - Cooling device and cooling method for thermal printing head - Google Patents
Cooling device and cooling method for thermal printing head Download PDFInfo
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- CN112248657B CN112248657B CN202011136664.2A CN202011136664A CN112248657B CN 112248657 B CN112248657 B CN 112248657B CN 202011136664 A CN202011136664 A CN 202011136664A CN 112248657 B CN112248657 B CN 112248657B
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- heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
- B41J2/3358—Cooling arrangements
Abstract
The invention discloses a temperature-reducing cooling device for a thermal printing head and a cooling method thereof, wherein the temperature-reducing cooling device comprises a first shell, wherein the inner side wall of the first shell is in threaded connection with a second shell, the outer side wall of the second shell is provided with a black chromium coating, and the inner side wall of the second shell is filled with heat-conducting filling glue; one deck black chromium coating is electroplated at the lateral wall of second casing, then put into the inside of second casing with heat conduction filling adhesive, absorb the heat in the first casing through heat conduction filling adhesive and take place to vulcanize and solidify, conduct the heat conduction copper pipe rapidly with the heat of heat-generating body simultaneously, heat conduction copper pipe conducts the heat to graphite alkene board, then discharge the inside of heat follow first casing through heat conduction copper pole, and in this way, can be to the heat discharge in the first casing, thereby avoided melting of the material in the first casing phenomenon, and then avoided beating printer head's jam, and then can not cause the trouble of printer.
Description
Technical Field
The invention relates to the technical field of printing equipment, in particular to a cooling device and a cooling method for a thermal printing head.
Background
As is well known, a Printer (Printer) is one of the output devices of a computer for printing the results of a computer process on an associated medium. The indexes for measuring the quality of the printer comprise three items: print resolution, print speed and noise. There are many types of printers, and an impact printer and a non-impact printer are classified according to whether or not a printing element strikes paper. Full-font character printers and dot matrix character printers are classified according to the character structure to be printed. A line printer is divided into a serial printer and a line printer in such a manner that a line character is formed on a paper. According to the adopted technology, the printer is divided into a column type, a spherical type, an ink jet type, a thermal type, a laser type, an electrostatic type, a magnetic type, a light emitting diode type and the like.
The invention is disclosed in China: a print head and a three-dimensional printer (publication number: CN103895223A) disclose a print head and a three-dimensional printer, which reduce the vibration of the print nozzle of the print head during the printing process and improve the printing quality of the three-dimensional printer, however, there are certain problems;
the existing printing head cavity has overhigh temperature, the printing material begins to soften at the feeding part of the printing head, the feeding precision is influenced, and the forming precision of the printer is further influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a temperature-reducing cooling device for a thermal printing head and a cooling method thereof.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a cooling device for a thermosensitive printing head comprises a first shell, wherein the inner side wall of the first shell is in threaded connection with a second shell, the outer side wall of the second shell is provided with a black chromium coating, the inner side wall of the second shell is filled with heat-conducting filling glue, the upper surface of the second shell is provided with first through grooves which are arranged at equal intervals, the inner side wall of each first through groove is welded with a heat-conducting copper pipe, one end of each heat-conducting copper pipe penetrates through each first through groove and is inserted into the second shell, the inner side wall of the second shell is in threaded connection with a graphene plate, the lower surface of each graphene plate is provided with first grooves which are arranged at equal intervals, the other end of each heat-conducting copper pipe is fixedly connected to the inner side wall of each first groove, the upper surface of each graphene plate is fixedly connected with heat-conducting copper rods which are arranged at equal intervals, the upper surface of, the one end that graphite alkene board was kept away from to heat conduction copper pole runs through the inside and the fixedly connected with plate body that the second led to the groove, the second recess has been seted up to the inside of plate body, the inside wall fixedly connected with graphite cake of second recess, the last surface mounting of plate body has the thermoelectric generation piece, the last surface mounting of thermoelectric generation piece has the battery, the electrical output of thermoelectric generation piece passes through first wire electric connection with the electrical input of battery.
Preferably, a third through groove is formed in one side of the outer wall of the first shell, and a heat dissipation fan is connected to the inner side wall of the third through groove in a threaded mode.
Preferably, the opposite side of the outer wall of the first shell is provided with a fourth through groove arranged at equal intervals, and the inner side wall of the fourth through groove is bonded with a dust screen.
Preferably, one side of the outer wall of the first shell is hinged to a first door panel through a first hinge, a first observation window is fixedly connected to the front surface of the first door panel, and a handle is connected to the front surface of the first door panel through threads.
Preferably, one side of the outer wall of the second shell is hinged to a second door panel through a second hinge, a second observation window is fixedly connected to the front surface of the second door panel, and a sealing gasket is bonded to the outer side wall of the second door panel.
Preferably, flexible heat-conducting gaskets are symmetrically adhered to the inner side wall of the first shell.
The invention also provides a cooling method for the thermal printing head, which comprises the following steps: the method comprises the following steps:
step one, electroplating a black chromium coating on the outer side wall of the second shell, and then putting heat-conducting filling glue into the second shell;
secondly, the heat conducting filling rubber absorbs heat in the first shell to generate vulcanization solidification, and meanwhile, the heat of the heating body is rapidly conducted to the heat conducting copper pipe;
conducting heat to the graphene plate through the heat conducting copper pipe, conducting the heat to the heat conducting copper rod through the graphene plate, and discharging the heat from the inside of the first shell through the heat conducting copper rod;
step four, the heat conduction copper pole can be with the thermoelectric generation piece on the heat conduction plate body, then the thermoelectric generation piece will absorb heat energy conversion electric energy to charge to the battery.
Preferably, the electrical output end of the storage battery is electrically connected with the electrical input end of the heat dissipation fan through a second wire.
(III) advantageous effects
Compared with the prior art, the invention provides a cooling device and a cooling method for a thermal printing head, which have the following beneficial effects:
firstly, electroplating a black chromium coating on the outer side wall of the second shell, then putting heat-conducting filling adhesive into the second shell, absorbing heat in the first shell through the heat-conducting filling adhesive to generate vulcanization solidification, and simultaneously rapidly conducting heat of a heating body to a heat-conducting copper pipe, wherein the heat-conducting copper pipe conducts the heat to a graphene plate, and then discharging the heat from the inside of the first shell through a heat-conducting copper rod;
two, heat conduction copper pole can be with the thermoelectric generation piece on the heat conduction plate body, then the thermoelectric generation piece will absorb heat energy conversion for the electric energy to charge to the battery, then the battery can play the effect of supplementary power supply to the heat dissipation fan, turns into the electric energy through the heat that sets up with the conduction, thereby can supply power to components such as heat dissipation fan, and then play energy-concerving and environment-protective effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the first housing according to the present invention;
FIG. 3 is a schematic view of a connection structure of the first housing, the first door panel, the first observation window and the handle according to the present invention;
FIG. 4 is a schematic view of a connection structure of a second housing, a second door panel, a second observation window and a gasket according to the present invention;
fig. 5 is an enlarged view of the structure of region a in fig. 1 according to the present invention.
In the figure: 1. a first housing; 2. a second housing; 3. a black chromium coating; 4. heat conducting filling glue; 5. a first through groove; 6. a heat conducting copper pipe; 7. a graphene plate; 8. a first groove; 9. a thermally conductive copper rod; 10. a second through groove; 11. a plate body; 12. a second groove; 13. a graphite plate; 14. a thermoelectric power generation sheet; 15. a storage battery; 16. a third through groove; 17. a heat dissipation fan; 18. a fourth through groove; 19. a dust screen; 20. a first door panel; 21. a first observation window; 22. a handle; 23. a second door panel; 24. a second observation window; 25. a gasket; 26. a flexible thermally conductive gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, the present invention provides a technical solution: a cooling device for a thermosensitive printing head comprises a first shell 1, wherein the inner side wall of the first shell 1 is in threaded connection with a second shell 2, the outer side wall of the second shell 2 is provided with a black chromium coating 3, the inner side wall of the second shell 2 is filled with heat-conducting filling glue 4, the upper surface of the second shell 2 is provided with first through grooves 5 which are arranged at equal intervals, the inner side wall of each first through groove 5 is welded with a heat-conducting copper pipe 6, one end of each heat-conducting copper pipe 6 penetrates through each first through groove 5 and is inserted into the second shell 2, the inner side wall of the second shell 2 is in threaded connection with a graphene plate 7, the lower surface of each graphene plate 7 is provided with first grooves 8 which are arranged at equal intervals, the other end of each heat-conducting copper pipe 6 is fixedly connected to the inner side wall of each first groove 8, the upper surface of each graphene plate 7 is fixedly connected with heat-conducting copper rods 9 which are, one end of the heat conduction copper rod 9, which is far away from the graphene plate 7, runs through the inside of the second through groove 10 and the fixedly connected with plate body 11, the second groove 12 is formed in the inside of the plate body 11, the inside wall fixedly connected with graphite plate 13 of the second groove 12, the upper surface of the plate body 11 is provided with the thermoelectric generation piece 14, the upper surface of the thermoelectric generation piece 14 is provided with the storage battery 15, and the electrical output end of the thermoelectric generation piece 14 is electrically connected with the electrical input end of the storage battery 15 through a first wire.
In this embodiment, specifically: a third through groove 16 is formed in one side of the outer wall of the first shell 1, and a heat dissipation fan 17 is connected to the inner side wall of the third through groove 16 in a threaded manner; by providing the heat dissipation fan 17 on the inner sidewall of the third through-groove 16, the air flow in the first casing 1 can be increased, so that the excessive heat in the first casing 1 can be dissipated.
Further: the other side of the outer wall of the first shell 1 is provided with fourth through grooves 18 which are arranged at equal intervals, and the inner side wall of each fourth through groove 18 is bonded with a dust screen 19; through set up fourth through groove 18 in the opposite side of first casing 1 outer wall, thereby can through with the cooperation of heat dissipation fan 17 discharge in the first casing 1 through groove 18 with unnecessary heat, set up dust screen 19 through the inside wall at fourth through groove 18, can prevent that the dust from leading to the inside that groove 18 entered into first casing 1 through the fourth to the heat dissipation that causes the influence inside first casing 1.
On the basis of the scheme: a first door panel 20 is hinged to one side of the outer wall of the first shell 1 through a first hinge, a first observation window 21 is fixedly connected to the front surface of the first door panel 20, and a handle 22 is connected to the front surface of the first door panel 20 in a threaded manner; through set up first observation window 21 at the front surface of first door plant 20, can be convenient for observe the operating condition in first casing 1, first observation window 21 passes through sealed glue fixed connection with first door plant 20 to guarantee the leakproofness of first observation window 21 and first door plant 20 junction, set up handle 22 through the front surface at first door plant 20, can be convenient for opening or closing of first door plant 20.
In this embodiment, specifically: a second door panel 23 is hinged to one side of the outer wall of the second shell 2 through a second hinge, a second observation window 24 is fixedly connected to the front surface of the second door panel 23, and a sealing gasket 25 is bonded to the outer side wall of the second door panel 23; through one side installation second door plant 23 of second casing 2 outer wall, can be through opening second door plant 23, thereby be convenient for take out or deposit of heat conduction filling glue 4, through set up second observation window 24 at the front surface of second door plant 23, can be convenient for observe the operating condition in the second casing 2, second observation window 24 and second door plant 23 are through sealed fixed connection that glues, thereby guarantee the leakproofness of second observation window 24 and second door plant 23 junction, set up sealed pad 25 through the lateral wall at second door plant 23, can guarantee the leakproofness of second door plant 23 and second casing 2 junction.
Further: flexible heat conducting gaskets 26 are symmetrically adhered to the inner side wall of the first shell 1; the flexible heat conducting gasket 26 is made of silicon rubber and foamed rubber, wherein the silicon rubber is characterized by good elasticity, the foamed rubber is characterized by large deformation range, good heat conducting effect and higher pressure-resistant grade, the flexible heat conducting gasket 26 is often used as a filler of a larger gap to play a role in transferring heat, and heat conducting filling particles in the flexible heat conducting gasket are generally aluminum oxide particles or mixed particles of aluminum oxide, magnesium oxide and boron nitride, so that the flexible heat conducting gasket has good heat conducting property and can prevent puncture.
The invention also provides a cooling method for the thermal printing head, which comprises the following steps: comprises the following steps of (a) carrying out,
step one, electroplating a black chromium coating 3 on the outer side wall of the second shell 2, and then putting heat-conducting filling glue 4 into the second shell 2;
secondly, the heat conducting filling rubber 4 absorbs heat in the first shell 1 to generate vulcanization solidification, and simultaneously, the heat of the heating body is rapidly conducted to the heat conducting copper pipe 6;
conducting heat to the graphene plate 7 through the heat conducting copper pipe 6, conducting the heat to the heat conducting copper rod 9 through the graphene plate 7, and discharging the heat from the inside of the first shell 1 through the heat conducting copper rod 9;
step four, the heat conducting copper rod 9 conducts heat to the thermoelectric generation piece 14 on the plate body 11, and then the thermoelectric generation piece 14 converts the absorbed heat energy into electric energy, so that the storage battery 15 is charged.
In this embodiment, specifically: the electrical output end of the storage battery 15 is electrically connected with the electrical input end of the heat dissipation fan 17 through a second lead; by providing the battery 15, the heat radiation fan 17 can be supplied with power in an auxiliary manner.
In summary, the working principle and the working process of the cooling device and the cooling method for the thermal print head are that when in use, the black chromium coating 3 is electroplated on the outer side wall of the second shell 2, the black chromium coating 3 has excellent spectral selectivity, the black chromium coating 3 has good thermal stability and high temperature resistance, is suitable for high temperature conditions, can stably work for a long time at 300 ℃, in addition, the black chromium coating 3 also has good weather resistance and corrosion resistance, can increase the heat absorption effect of the second shell 2, then the heat-conducting filling adhesive 4 is placed in the second shell 2, the heat-conducting filling adhesive 4 absorbs the heat in the first shell 1 to generate vulcanization solidification, and simultaneously, the heat of the heating body is rapidly conducted to the heat-conducting copper pipe 6, the heat-conducting copper pipe 6 conducts the heat to the graphene plate 7, the graphene plate 7 has good heat-conducting performance, and the heat-conducting coefficient of the single-layer graphene is as high as 5300W/mK, the carbon material with the highest heat conductivity coefficient is higher than a single-walled carbon nanotube (3500W/mK) and a multi-walled carbon nanotube (3000W/mK), heat is conducted to the heat-conducting copper rod 9 through the graphene plate 7, then the heat is discharged from the inside of the first shell 1 through the heat-conducting copper rod 9, the heat-conducting copper rod 9 can conduct the heat to the thermoelectric generation sheet 14 on the plate body 11, then the thermoelectric generation sheet 14 converts the absorbed heat energy into electric energy, so that the storage battery 15 is charged, and then the storage battery 15 can play a role in auxiliary power supply for the heat dissipation fan 17.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A cooling device for a thermal print head comprises a first shell (1), and is characterized in that: the inner side wall of the first shell (1) is in threaded connection with a second shell (2), the outer side wall of the second shell (2) is provided with a black chromium coating (3), the inner side wall of the second shell (2) is filled with heat-conducting filling glue (4), the upper surface of the second shell (2) is provided with first through grooves (5) which are arranged at equal intervals, the inner side wall of each first through groove (5) is welded with a heat-conducting copper pipe (6), one end of each heat-conducting copper pipe (6) penetrates through each first through groove (5) and is inserted into the corresponding second shell (2), the inner side wall of the first shell (1) is in threaded connection with a graphene plate (7), the lower surface of each graphene plate (7) is provided with first grooves (8) which are arranged at equal intervals, the other end of each heat-conducting copper pipe (6) is fixedly connected to the inner side wall of each first groove (8), the upper surface of each graphene plate (7) is fixedly connected with heat-, the upper surface of the first shell (1) is provided with a second through groove (10) which is arranged at equal intervals, one end of the heat-conducting copper rod (9) far away from the graphene plate (7) penetrates through the inside of the second through groove (10) and is fixedly connected with a plate body (11), the inside of the plate body (11) is provided with a second groove (12), the inner side wall of the second groove (12) is fixedly connected with a graphite plate (13), the upper surface of the plate body (11) is provided with a thermoelectric generation sheet (14), the upper surface of the thermoelectric generation sheet (14) is provided with a storage battery (15), the electrical output end of the thermoelectric generation sheet (14) is electrically connected with the electrical input end of the storage battery (15) through a first wire, one side of the outer wall of the first shell (1) is provided with a third through groove (16), and the inner side wall of the third through groove (16) is in threaded connection with a, the opposite side of first casing (1) outer wall is seted up the fourth and is led to groove (18) that the equidistance was arranged, the inside wall bonding of fourth groove (18) has dust screen (19).
2. A device for cooling a thermal print head according to claim 1, wherein: one side of the outer wall of the first shell (1) is hinged to a first door panel (20) through a first hinge, a first observation window (21) is fixedly connected to the front surface of the first door panel (20), and a handle (22) is connected to the front surface of the first door panel (20) in a threaded mode.
3. A device for cooling a thermal print head according to claim 1, wherein: one side of the outer wall of the second shell (2) is hinged to a second door panel (23) through a second hinge, a second observation window (24) is fixedly connected to the front surface of the second door panel (23), and a sealing gasket (25) is bonded to the outer side wall of the second door panel (23).
4. A device for cooling a thermal print head according to claim 1, wherein: flexible heat conducting gaskets (26) are symmetrically adhered to the inner side wall of the first shell (1).
5. A cooling method for a thermal print head using the cooling apparatus for a thermal print head according to claim 1, comprising the steps of:
step one, electroplating a black chromium coating (3) on the outer side wall of the second shell (2), and then putting heat-conducting filling glue (4) into the second shell (2);
secondly, the heat conducting filling rubber (4) absorbs heat in the first shell (1) to generate vulcanization solidification, and meanwhile, the heat of the heating body is rapidly conducted to the heat conducting copper pipe (6);
conducting heat to the graphene plate (7) through the heat conducting copper pipe (6), conducting the heat to the heat conducting copper rod (9) through the graphene plate (7), and discharging the heat from the inside of the first shell (1) through the heat conducting copper rod (9);
step four, the heat conducting copper rod (9) can conduct heat to the thermoelectric generation sheet (14) on the plate body (11), and then the thermoelectric generation sheet (14) converts absorbed heat energy into electric energy, so that the storage battery (15) is charged.
6. A cooling method for a thermal head according to claim 5, using a cooling apparatus for a thermal head according to claim 1, wherein: and the electrical output end of the storage battery (15) is electrically connected with the electrical input end of the heat dissipation fan (17) through a second wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011136664.2A CN112248657B (en) | 2020-10-22 | 2020-10-22 | Cooling device and cooling method for thermal printing head |
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| CN202011136664.2A CN112248657B (en) | 2020-10-22 | 2020-10-22 | Cooling device and cooling method for thermal printing head |
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| CN112248657B true CN112248657B (en) | 2021-07-02 |
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