Efficient heat dissipation assembly for printing head

Abstract

The utility model discloses an efficient heat dissipation assembly for a printing head, which relates to the technical field of heat dissipation structures of printing heads and comprises a printing head unit and a mounting shell, the mounting shell is embedded on the upper surface of the printing head unit, and a heat dissipation mechanism is arranged in the mounting shell. And the heat dissipation mechanism comprises heat dissipation fins which are arranged on the inner bottom wall of the mounting shell and are embedded in the printing head unit. Through the arrangement of the heat dissipation mechanism, heat generated during operation of the printing head unit is transmitted to the heat dissipation fins, during heat dissipation, the micro fan operates to convey airflow into the L-shaped pipe and blows the airflow into the water storage tank through the multiple air outlets, dust in the airflow can be filtered out under filtration of water in the water storage tank, and the temperature of the airflow can be reduced; and then air flow enters the mounting shell through the air conveying pipe and the mounting barrel, heat on the cooling fins can be taken away under blowing of the air flow, and therefore the purpose of cooling the printing head unit is achieved through the cooling fins, and the situation of loss caused by heat accumulation of the printing head unit is avoided.

Description

Technical Field

[0001] This utility model relates to the field of printhead heat dissipation structure technology, and in particular to a high-efficiency heat dissipation component for printheads. Background Technology

[0002] A thermal printer is a device that prints using thermal paper. It works by using a semiconductor heating element mounted on the print head. Once the print head heats up and comes into contact with the thermal paper, it can print the desired image. Its principle is similar to that of a thermal fax machine.

[0003] Currently, thermal printheads generally consist of a ceramic substrate, a printed circuit board, a heat sink, encapsulating adhesive, an integrated circuit, and gold wire. During high-energy printing, the heating resistors on the ceramic substrate generate a large amount of heat, leading to severe heat accumulation. When the thermal printhead overheats, printing must be interrupted until the temperature of the thermal printhead drops before printing can resume. This affects the lifespan of the thermal printhead and other printer components, as well as printing efficiency and print quality. Therefore, this application proposes a high-efficiency heat dissipation component for printheads. Utility Model Content

[0004] This utility model discloses a high-efficiency heat dissipation component for printheads, aiming to solve the technical problem of the lack of heat dissipation structure in existing printheads.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency heat dissipation component for a printhead includes a printhead assembly and a mounting housing. The mounting housing is embedded in the upper surface of the printhead assembly, and a heat dissipation mechanism is provided inside the mounting housing.

[0007] The heat dissipation mechanism includes heat sinks installed on the bottom wall of the mounting housing and embedded inside the printhead unit. A miniature fan and a water tank are fixedly installed on the upper surface and front of the mounting housing, respectively. An L-shaped tube is embedded on the upper surface of the water tank, and a connector is provided at the upper end of the L-shaped tube. The air outlet of the miniature fan is threaded to the connector. An air outlet is opened on the surface of the L-shaped tube located inside the water tank. A mounting cylinder is embedded on the right side surface of the mounting housing. An air supply pipe communicating with the inside of the mounting cylinder is provided on the upper surface of the water tank. An exhaust port is opened on the left side of the mounting housing, and a protective mesh is provided on the inner wall of the exhaust port.

[0008] In a preferred embodiment, the number of heat sinks is several, and the heat sinks are equidistantly arranged inside the mounting housing. The number of vent holes is several, and the vent holes are equidistantly opened on the surface of the L-shaped tube.

[0009] In a preferred embodiment, a drain pipe is provided on the right side surface of the water storage tank, and a sealing cap is threaded to the right end of the drain pipe.

[0010] The installation of drain pipes allows for the discharge and replacement of wastewater from the water storage tank.

[0011] In a preferred embodiment, a drying box is embedded on the surface of the air duct, and a drying pack is provided inside the drying box, which is made of calcium chloride desiccant material.

[0012] By installing a drying pack, the airflow inside the air duct can be dried.

[0013] In a preferred embodiment, the inner top wall of the mounting shell is fixedly mounted with a mounting ring by a bracket, and the inner wall of the mounting ring is rotatably connected to a rotating rod extending into the interior of the mounting cylinder. One end of the rotating rod located inside the mounting cylinder is provided with a turbine blade, and the other end of the rotating rod is provided with a fan blade.

[0014] By setting up turbine blades and fan blades, the airflow blown into the mounting housing through the air duct can be dispersed, so that the airflow can evenly cool down the heat sinks inside the mounting housing.

[0015] In a preferred embodiment, a mounting bracket is fixedly mounted on the upper surface of the mounting shell, and a threaded hole is formed on the surface of the mounting bracket, with a fixing bolt threaded onto the inner wall of the threaded hole.

[0016] The installation of angle brackets and fixing bolts facilitates the assembly of the printhead with the printer housing.

[0017] As can be seen from the above, the high-efficiency heat dissipation component for a printhead provided by this utility model has the following technical effects.

[0018] Firstly, the heat generated during printhead unit operation is transferred to the heat sink. During heat dissipation, a micro fan delivers airflow into the L-shaped tube and blows it into the water tank through several air outlets. The water in the tank filters out dust particles in the airflow and lowers its temperature. Subsequently, the airflow enters the mounting housing through the air duct and mounting cylinder. The airflow carries away the heat from the heat sink, thus achieving the purpose of heat dissipation for the printhead unit. This prevents damage caused by heat accumulation and also reduces the impact of printing interruptions on printing efficiency and print quality.

[0019] Secondly, when the airflow in the air duct enters the installation cylinder, the airflow drives the rotating rod to rotate through the turbine blades. The rotation of the rotating rod drives the fan blades to stir, dispersing the airflow so that the airflow can be blown fully and evenly to all parts of the installation shell. With the action of the drying box and drying package, the airflow in the air duct can be dried to avoid the presence of moisture in the airflow, thus ensuring the environment inside the installation shell. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of a high-efficiency heat dissipation component for a printhead proposed in this utility model.

[0021] Figure 2 This is a cross-sectional view of the water tank structure of a high-efficiency heat dissipation component for a printhead proposed in this utility model.

[0022] Figure 3 This is a cross-sectional view of the mounting shell of a high-efficiency heat dissipation component for a printhead proposed in this utility model.

[0023] In the attached diagram: 1. Printhead assembly; 2. Mounting housing; 3. Heat sink; 4. Miniature fan; 5. Water tank; 6. L-shaped tube; 7. Air outlet; 8. Mounting cylinder; 9. Air duct; 10. Drain pipe; 11. Drying box; 12. Drying pack; 13. Mounting ring; 14. Rotating rod; 15. Turbine blade; 16. Fan blade; 17. Mounting bracket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Reference Figures 1-3 A high-efficiency heat dissipation component for a printhead includes a printhead assembly 1 and a mounting shell 2. The mounting shell 2 is embedded on the upper surface of the printhead assembly 1, and a heat dissipation mechanism is provided inside the mounting shell 2.

[0029] The heat dissipation mechanism includes heat sinks 3 set in the bottom wall of the mounting shell 2 and embedded in the printhead unit 1. A micro fan 4 and a water tank 5 are fixedly installed on the upper surface and front of the mounting shell 2, respectively. An L-shaped tube 6 is embedded in the upper surface of the water tank 5. A connector is provided at the upper end of the L-shaped tube 6. The air outlet of the micro fan 4 is threaded to the connector. An air outlet 7 is opened on the surface of the L-shaped tube 6 located inside the water tank 5. An mounting cylinder 8 is embedded in the right side surface of the mounting shell 2. An air supply pipe 9 communicating with the inside of the mounting cylinder 8 is provided on the upper surface of the water tank 5. An exhaust port is opened on the left side of the mounting shell 2. A protective net is provided on the inner wall of the exhaust port.

[0030] There are several heat sinks 3, which are equidistantly arranged inside the mounting shell 2. There are several vent holes 7, which are equidistantly opened on the surface of the L-shaped tube 6.

[0031] Mounting bracket 17 is fixedly mounted on the upper surface of mounting housing 2. The surface of mounting bracket 17 has a threaded hole, and a fixing bolt is threaded into the inner wall of the threaded hole. The mounting bracket 17 and the fixing bolt facilitate the assembly of the print head with the printer housing.

[0032] Reference Figure 1 and Figure 2 In a preferred embodiment, a drain pipe 10 is provided on the right side surface of the water storage tank 5, and a sealing cap is threaded to the right end of the drain pipe 10. Through the drain pipe 10, the sewage in the water storage tank 5 can be discharged and replaced.

[0033] Reference Figure 2 and Figure 3 In a preferred embodiment, a drying box 11 is embedded on the surface of the air duct 9, and a drying pack 12 is provided inside the drying box 11. The drying pack 12 is made of calcium chloride desiccant material. By setting the drying pack 12, the airflow in the air duct 9 can be dried.

[0034] Reference Figure 3In a preferred embodiment, an mounting ring 13 is fixedly mounted on the inner top wall of the mounting shell 2 by a bracket. A rotating rod 14 extending into the interior of the mounting cylinder 8 is rotatably connected to the inner wall of the mounting ring 13. A turbine blade 15 is provided at one end of the rotating rod 14 located inside the mounting cylinder 8, and a fan blade 16 is provided at the other end of the rotating rod 14.

[0035] By setting the turbine blades 15 and fan blades 16, the airflow blown into the mounting housing 2 by the air supply pipe 9 can be dispersed, so that the airflow can evenly blow and cool the heat sinks 3 inside the mounting housing 2.

[0036] Working principle: The heat generated by the printhead unit 1 during operation is transferred to the heat sink 3 and accumulates inside the mounting shell 2. During heat dissipation, the micro fan 4 runs and delivers airflow into the L-shaped tube 6. The airflow in the L-shaped tube 6 is blown into the water tank 5 through several air outlets 7. The water in the water tank 5 filters out dust in the airflow and reduces the temperature of the airflow. The filtered airflow enters the mounting shell 2 through the air supply pipe 9 and the mounting cylinder 8 and is discharged through the exhaust port. The airflow can carry away the heat on the heat sink 3, thereby achieving the purpose of heat dissipation for the printhead unit 1 through the heat sink 3. During this process, when the airflow in the air supply pipe 9 enters the mounting cylinder 8, the airflow drives the rotating rod 14 to rotate through the turbine blades 15. The rotation of the rotating rod 14 drives the fan blades 16 to stir and disperse the airflow, so that the airflow can be fully and evenly blown to all parts of the mounting shell 2. Under the action of the drying box 11 and the drying bag 12, the airflow in the air supply pipe 9 can be dried to prevent the presence of water vapor in the airflow.

[0037] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0038] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high-efficiency heat dissipation component for a printhead, characterized in that, It includes a printhead assembly (1) and a mounting shell (2). The mounting shell (2) is embedded on the upper surface of the printhead assembly (1), and a heat dissipation mechanism is provided inside the mounting shell (2). The heat dissipation mechanism includes a heat sink (3) set in the bottom wall of the mounting shell (2) and embedded in the print head unit (1). A micro fan (4) and a water tank (5) are fixedly installed on the upper surface and front of the mounting shell (2), respectively. An L-shaped tube (6) is embedded in the upper surface of the water tank (5). A connector is provided at the upper end of the L-shaped tube (6). The air outlet of the micro fan (4) is threadedly connected to the connector. An air outlet (7) is opened on the surface of one end of the L-shaped tube (6) inside the water tank (5). An mounting cylinder (8) is embedded in the right side surface of the mounting shell (2). An air supply pipe (9) communicating with the inside of the mounting cylinder (8) is provided on the upper surface of the water tank (5). An exhaust port is opened on the left side of the mounting shell (2). A protective net is provided on the inner wall of the exhaust port.

2. The high-efficiency heat dissipation component for a printhead according to claim 1, characterized in that, The number of heat sinks (3) is several, and the several heat sinks (3) are equidistantly arranged inside the mounting shell (2). The number of air vents (7) is several, and the several air vents (7) are equidistantly opened on the surface of the L-shaped tube (6).

3. The high-efficiency heat dissipation component for a printhead according to claim 1, characterized in that, The water storage tank (5) is provided with a drain pipe (10) on the right side surface, and a sealing cap is threaded to the right end of the drain pipe (10).

4. The high-efficiency heat dissipation component for a printhead according to claim 1, characterized in that, The surface of the air duct (9) is fitted with a drying box (11), and the inside of the drying box (11) is provided with a drying pack (12), which is calcium chloride desiccant material.

5. A high-efficiency heat dissipation component for a printhead according to claim 1, characterized in that, The inner top wall of the mounting shell (2) is fixedly mounted with a mounting ring (13) by a bracket. The inner wall of the mounting ring (13) is rotatably connected to a rotating rod (14) extending into the mounting cylinder (8). One end of the rotating rod (14) located inside the mounting cylinder (8) is provided with a turbine blade (15), and the other end of the rotating rod (14) is provided with a fan blade (16).

6. A high-efficiency heat dissipation component for a printhead according to claim 1, characterized in that, The mounting housing (2) is fixedly mounted with a mounting bracket (17) on its upper surface. The mounting bracket (17) has a threaded hole on its surface, and a fixing bolt is threaded to the inner wall of the threaded hole.

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