Magnetic stirrer capable of controlling temperature and resisting corrosion

Abstract

The utility model discloses a magnetic stirrer capable of more controlling temperature and resisting corrosion, which comprises a motor, a stirring rod, a stirring shaft, a stirring shaft, a stirring shaft, a stirring shaft, a stirring shaft and a stirring shaft, wherein the output end of the motor is fixedly connected with the stirring rod through a driving shaft; the stirrer is fixedly connected with the side end of the stirring rod, the stirrer is uniformly distributed around the stirring rod in a surrounding manner, the stirrer is sequentially provided with a magnetic core, a magnetic core shell and a heat dissipation coating from inside to outside, the magnetic core is connected with the magnetic core shell in a sleeving manner, and the magnetic core shell is connected with the heat dissipation coating in a sleeving manner. Through the stirrer hierarchical structure composed of the magnetic core, the magnetic core shell and the heat dissipation coating from inside to outside, the heat conduction capacity of the stirrer can be enhanced so as to avoid magnetic force weakening and excitation loss of the magnetic stirrer, and stable use of the magnetic stirrer is facilitated; the magnetic core is made of a rubidium-iron-boron magnet, the magnetic core shell is made of polytetrafluoroethylene, and the heat dissipation coating is made of high-temperature-resistant graphene, so that the magnetic stirrer has better corrosion resistance and high-temperature resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic stirring, in particular to a magnetic stirrer which can better control temperature and is more corrosion-resistant. Background Art

[0002] Although the polytetrafluoroethylene material of the stirring core shell of the existing magnetic stirrer is resistant to high temperature and has good thermal conductivity, its thermal conductivity is relatively limited. For long-term high-temperature heating, its thermal conductivity will be greatly reduced. Due to the decrease in thermal conductivity, heat will accumulate around the magnetic core for a long time, resulting in a decrease in the magnetic force of the magnetic core, a decrease in service life, and even demagnetization. A Chinese patent discloses a "magnetic stirrer" with an application number of "CN201520774335.9", which includes an electrical box body, a container support, a fan, a magnet, a magnet and an electronic speed regulator. The fan is located above the inside of the electrical box body, the container support is located above the outside of the electrical box body, the magnet is arranged on the fan blade, and the electronic speed regulator is electrically connected to the fan to adjust the fan blade speed; the fan can be directly driven by alternating current, and an AC brushless motor is contained inside; the magnet rotates with the rotation of the fan blade, and the magnet rotates with the rotation of the magnet to stir the liquid that needs to be stirred in the container. The magnetic stirrer provided by the utility model has a simple structure, low cost, is not easy to damage, and has no safety hazards. However, the agitator is prone to demagnetization, which is not conducive to the normal use of the agitator. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art, and to provide a magnetic stirrer which can better control temperature and is more corrosion-resistant. The stirrer hierarchical structure composed of an inner-outer magnetic core, a magnetic core shell and a heat dissipation coating can enhance the thermal conductivity of the stirrer to avoid weakening and demagnetization of the magnetic force of the magnetic stirrer, which is beneficial to the stable use of the magnetic stirrer. The magnetic core adopts a neodymium iron boron magnet as a material, the magnetic core shell adopts polytetrafluoroethylene as a material, and the heat dissipation coating adopts high-temperature resistant graphene as a material, so that the magnetic stirrer has better corrosion resistance and high-temperature resistance.

[0004] The utility model also provides the above-mentioned magnetic stirrer which can better control temperature and is more corrosion-resistant, comprising: a motor, the output end of the motor is fixedly connected to a stirring rod through a driving shaft; a stirring bar, the stirring bar is fixedly connected to the side end of the stirring rod, the stirring bar is evenly distributed around the stirring rod, the stirring bar is sequentially provided with a magnetic core, a magnetic core shell and a heat dissipation coating from the inside to the outside, the magnetic core is sleeved with the magnetic core shell, and the magnetic core shell is sleeved with the heat dissipation coating.

[0005] According to the magnetic stirrer with better temperature control and corrosion resistance described in the utility model, the upper end of the motor is fixedly connected with a mounting plate for convenient installation and fixation. The mounting plate is provided with mounting holes for convenient and stable installation.

[0006] According to the utility model, a magnetic stirrer capable of better temperature control and corrosion resistance, the magnetic core is olive-shaped, which is conducive to stable stirring. The material of the magnetic core is a neodymium iron boron magnet, which improves the structural strength of the magnetic stirrer.

[0007] According to the utility model, a magnetic stirrer capable of better temperature control and corrosion resistance, the magnetic core shell is a cylindrical straight body integrated shell made of polytetrafluoroethylene material, which improves the protection of the magnetic stirrer. The magnetic core shell is evenly wrapped on the outer surface of the magnetic core, making the structure compact and tight. The specification of the magnetic core shell is 6*20mm, which is conducive to the tight coating of the magnetic core shell.

[0008] According to the utility model, a magnetic stirrer capable of better temperature control and corrosion resistance is provided, the heat dissipation coating is made of high temperature resistant graphene, which improves the heat resistance of the magnetic stirrer. The heat dissipation coating is 0.75 mm thick, which is conducive to stable heat dissipation and tight coating of the heat dissipation coating.

[0009] According to the utility model, a magnetic stirrer capable of better temperature control and corrosion resistance, the heat dissipation coating is a high temperature resistant graphene radiation heat dissipation coating, which is conducive to the stable heat dissipation of the magnetic stirrer. The heat dissipation coating is evenly wrapped on the outer surface of the magnetic core shell, which is conducive to the stable heat dissipation of the magnetic stirrer.

[0010] According to the magnetic stirrer with better temperature control and corrosion resistance described in the utility model, the inner surface of the magnetic core shell fits the inner surface of the magnetic core, so that the structure is tight and stable.

[0011] According to the magnetic stirrer with better temperature control and corrosion resistance described in the utility model, the outer surface of the magnetic core shell fits with the inner surface of the heat dissipation coating, making the structure tight and stable.

[0012] Beneficial Effects

[0013] 1. Compared with the prior art, the magnetic stirrer can be more temperature-controlled and corrosion-resistant. The stirring sub-layer structure composed of the inner-outer magnetic core, the magnetic core shell and the heat dissipation coating can enhance the thermal conductivity of the stirring sub-layer to avoid the weakening and demagnetization of the magnetic force of the magnetic stirring sub-layer, which is conducive to the stable use of the magnetic stirrer.

[0014] 2. Compared with the prior art, this magnetic stirrer has better temperature control and corrosion resistance. The magnetic core is made of nepheline iron boron magnet, the magnetic core shell is made of polytetrafluoroethylene, and the heat dissipation coating is made of high-temperature resistant graphene, which makes the magnetic stirrer have better corrosion resistance and high temperature resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the structure of a magnetic stirrer that can better control temperature and is more corrosion-resistant according to the utility model;

[0017] Figure 2 This is a schematic diagram of the hierarchical structure of a stirring rod of a magnetic stirrer that can better control temperature and resist corrosion according to the utility model;

[0018] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of a magnetic stirrer that can better control temperature and is more corrosion-resistant according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the transverse cross-sectional structure of a magnetic stirrer which can better control temperature and is more corrosion-resistant.

[0020] Legend:

[0021] 1. Heat dissipation coating; 2. Magnetic core shell; 3. Magnetic core; 4. Stirring bar; 5. Stirring rod; 6. Motor; 7. Mounting hole; 8. Mounting plate; 9. Drive shaft. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model embodiment is a magnetic stirrer that can better control temperature and is more corrosion-resistant, which includes: a motor 6, the upper end of the motor 6 is fixedly connected to a mounting plate 8 for installation and fixing, the mounting plate 8 is provided with a mounting hole 7 for stable installation, and the output end of the motor 6 is fixedly connected to a stirring rod 5 through a driving shaft 9 for stirring;

[0024] The stirrer 4 is fixedly connected to the side end of the stirring rod 5 to form a mounting structure of the stirrer. The stirrer 4 is evenly distributed around the stirring rod 5 to form a stirring layout. The stirrer 4 is sequentially provided with a magnetic core 3, a magnetic core shell 2 and a heat dissipation coating 1 from the inside to the outside to form a tight and stable structure. The magnetic core 3 is olive-shaped to form a stirring structure. The material of the magnetic core 3 is a neodymium iron boron magnet to form a strength structure of the magnetic stirrer and a hierarchical structure of the magnetic stirrer. The magnetic core 3 is sleeved with the magnetic core shell 2 to form a tight and stable structure. The magnetic core shell 2 is sleeved with the heat dissipation coating 1 to form a tight and stable structure. The magnetic core shell 2 is a cylindrical straight-body integrated shell made of polytetrafluoroethylene to form corrosion resistance and high temperature resistance on the surface of the magnetic core. The structure of the core shell 2 is uniformly wrapped on the outer surface of the core 3 to form a protective structure. The core shell 2 has a specification of 6*20mm, which is used as the production specification of the core shell. The material of the heat dissipation coating 1 is high temperature resistant graphene to form an external corrosion-resistant and high temperature resistant structure. The thickness of the heat dissipation coating 1 is 0.75mm, which is used as the production specification of the heat dissipation coating. The heat dissipation coating 1 is a high temperature resistant graphene radiation heat dissipation coating to form a high temperature resistant structure. The heat dissipation coating 1 is uniformly wrapped on the outer surface of the core shell 2 to form a uniform high temperature resistant structure. The inner surface of the core shell 2 fits with the inner surface of the core 3 to form a tight and stable structure. The outer surface of the core shell 2 fits with the inner surface of the heat dissipation coating 1 to form a tight and stable structure.

[0025] Working principle: Use a magnetic stirrer that can better control temperature and is more corrosion-resistant to magnetically stir the liquid. Start the motor 6. The output end of the motor 6 will drive the stirring rod 5 to rotate through the driving shaft 9. The stirring rod 5 will be magnetically stirred through the stirrer 4 installed on the stirring rod 5. The mechanism of magnetic stirring is that when the external magnetic field source is turned on, the stirrer 4 in the magnetic stirrer is subjected to the force of the magnetic field. According to the principle of the Lorentz force, there will be a force interaction between the magnetic field and the stirrer 4, so that the stirrer 4 runs at high speed in the liquid, thereby achieving the stirring of the liquid.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A magnetic stirrer that can better control temperature and is more corrosion-resistant, characterized in that: include: A motor (6), wherein the output end of the motor (6) is fixedly connected to a stirring rod (5) via a driving shaft (9); A stirring bar (4) is fixedly connected to the side end of a stirring rod (5), the stirring bar (4) is evenly distributed around the stirring rod (5), the stirring bar (4) is provided with a magnetic core (3), a magnetic core shell (2) and a heat dissipation coating (1) in sequence from the inside to the outside, the magnetic core (3) is sleeved with the magnetic core shell (2), and the magnetic core shell (2) is sleeved with the heat dissipation coating (1).

2. A magnetic stirrer capable of better temperature control and corrosion resistance according to claim 1, characterized in that: The upper end of the motor (6) is fixedly connected to a mounting plate (8), and a mounting hole (7) is provided in the mounting plate (8).

3. A magnetic stirrer capable of better temperature control and corrosion resistance according to claim 1, characterized in that: The magnetic core (3) is olive-shaped, and the material of the magnetic core (3) is a neodymium iron boron magnet.

4. A magnetic stirrer capable of better temperature control and corrosion resistance according to claim 1, characterized in that: The magnetic core shell (2) is a cylindrical straight-body integrated shell made of polytetrafluoroethylene. The magnetic core shell (2) is evenly wrapped around the outer surface of the magnetic core (3). The specification of the magnetic core shell (2) is 6*20 mm.

5. A magnetic stirrer capable of better temperature control and corrosion resistance according to claim 1, characterized in that: The material of the heat dissipation coating (1) is high temperature resistant graphene, and the thickness of the heat dissipation coating (1) is 0.75 mm.

6. A magnetic stirrer capable of better temperature control and corrosion resistance according to claim 1, characterized in that: The heat dissipation coating (1) is a high-temperature resistant graphene radiation heat dissipation coating, and the heat dissipation coating (1) is evenly wrapped around the outer surface of the magnetic core shell (2).

7. A magnetic stirrer capable of better temperature control and corrosion resistance according to claim 1, characterized in that: The inner surface of the magnetic core shell (2) is in contact with the inner surface of the magnetic core (3).

8. A magnetic stirrer capable of better temperature control and corrosion resistance according to claim 1, characterized in that: The outer surface of the magnetic core shell (2) is in contact with the inner surface of the heat dissipation coating (1).

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