A heating device for a magnetic stirrer

Abstract

The utility model relates to the technical field of stirrers, and specifically discloses a heating device of a magnetic stirrer, which comprises upper and middle partition sheets, the upper and middle partition sheets form a double-layer support structure, the double-layer support structure is installed on the lower surface of a heating jacket, the heating jacket is sleeved and installed on the outer surface of a stirring platform of a stirrer body, the double-layer support structure formed by the upper and middle partition sheets is provided with a heating structure, and the heating structure is uniformly heated through a heating ring and a heat conduction ring. The heating device of the magnetic stirrer, four graphene heating film heating rings in the form of concentric circles are arranged between the upper and middle partition sheets in the device, so that heat is more evenly distributed in the heating area, meanwhile, the heat conduction rings arranged between adjacent heating rings can further conduct and diffuse heat, the situation of local overheating or uneven temperature is avoided, and it is ensured that the material can be uniformly heated during the stirring process.

Description

Technical Field

[0001] This utility model relates to the field of stirrer technology, specifically a heating device for a magnetic stirrer. Background Technology

[0002] A magnetic stirrer is an experimental or industrial device that uses a magnetic field to drive a magnetic stir bar to rotate, thereby stirring liquid or solid-liquid mixtures. It typically consists of a stirrer body, a stirring platform, a heating device, and a control circuit. It can be equipped with a heating function during the stirring process to meet the operational needs of different scenarios. In chemical and biological experiments and related industrial production, magnetic stirrers are commonly used devices for material mixing and reaction.

[0003] Traditional heating structures often use a single heating element or a simple arrangement, resulting in a single heat conduction path. This can easily lead to uneven temperature distribution on the surface of the stirring platform, affecting the accuracy of experimental data and the consistency of the reaction. Furthermore, during the heating process, heat can easily be lost to the stirrer body or the external environment, which may cause high-temperature effects on other components of the equipment and pose safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a heating device for a magnetic stirrer. This device is equipped with a heating element and a heat-conducting ring to ensure uniform heat transfer. A heat insulation structure is provided below to prevent heat transfer to the stirrer body, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heating device for a magnetic stirrer, comprising an upper partition and a middle partition, the upper partition and the middle partition forming a double-layer support structure, the double-layer support structure being installed on the lower surface of a heating sleeve, the heating sleeve being fitted onto the outer surface of the stirring platform of the stirrer body, a heating structure being provided within the double-layer support structure formed by the upper partition and the middle partition, the heating structure achieving uniform heating through a heating ring and a heat-conducting ring, the heating structure including a heating ring, the heating ring being a hollow circular structure, the upper and lower surfaces of the heating ring being fixedly connected to the lower surface of the upper partition and the upper surface of the middle partition, respectively.

[0006] Preferably, the heating ring is a graphene heating film, and four heating rings are arranged in a concentric nested structure and connected by wires.

[0007] Using the above technical solution, the heating process of the stirrer can be achieved through the graphene heating film.

[0008] Preferably, a heat-conducting ring is provided between two adjacent heating rings. The heat-conducting ring is made of a heat-conducting material, and the upper and lower surfaces of the heat-conducting ring are respectively fixedly connected to the lower surface of the upper partition and the upper surface of the middle partition.

[0009] By adopting the above technical solution, heat can be conducted through the heat-conducting ring to ensure the uniformity of heating.

[0010] Preferably, the upper partition is a circular mica sheet, and the middle partition below the upper partition is a circular mica sheet of the same size. The upper partition and the middle partition are connected by a fixed structure.

[0011] By adopting the above technical solution, uniform heat conduction can be achieved through the upper and middle partitions made of mica sheet material.

[0012] Preferably, the fixing structure includes a fixing block, which is an arc-shaped block structure with a C-shaped cross-section. The fixing block wraps around the edges of the upper and middle partition plates. The inner surface of the fixing block is fixedly connected to the upper surface of the upper partition plate and the lower surface of the middle partition plate, respectively. A fixing rod is provided through the surface of the upper partition plate. The fixing rod is a threaded rod structure and is threadedly connected to the inner surface of the heating sleeve.

[0013] By adopting the above technical solution, a fixed connection of the heating structure can be achieved through a fixed structure.

[0014] Preferably, a heat insulation structure is provided below the double-layer support structure, and the heat insulation structure isolates heat by accommodating heat insulation filler through a lower partition and a connecting block.

[0015] By adopting the above technical solution, the heat insulation structure can prevent heat from being conducted into the interior of the stirrer body.

[0016] Preferably, the heat insulation structure includes a lower partition plate, which is disposed below the middle partition plate. The lower partition plate is a heat insulation board. The lower partition plate and the middle partition plate are fixedly connected by a connecting block. The connecting block is a densely packed, hollowed-out regular hexagonal block, and the interior of the connecting block is filled with glass fiber.

[0017] By adopting the above technical solution, the lower separator can prevent heat from being conducted downwards.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the heating device of the magnetic stirrer:

[0019] 1. In this device, four concentric nested graphene heating film rings are set between the upper and middle partition plates, which makes the heat more evenly distributed in the heating area. At the same time, the heat conduction rings set between adjacent heating rings can further conduct and diffuse the heat, avoiding local overheating or uneven temperature, thus ensuring that the material can be heated evenly during the stirring process.

[0020] 2. Both the upper and middle partition plates in this device are circular mica sheets. Mica sheets have good thermal conductivity and insulation properties. Through the threaded connection between the fixing rod and the heating sleeve, the double-layer support structure can be firmly installed on the heating sleeve, which can stably support the heating structure and other components, ensuring that the entire heating device will not easily shift or deform during use, thus improving the reliability of the device.

[0021] 3. In this device, a connecting block and a lower partition are installed below the double-layer support structure. The connecting block is made of hollow regular hexagon and filled with glass fiber. The lower partition is a heat insulation board that can block heat from being transferred downwards. Glass fiber has good heat insulation properties and can effectively isolate heat, reduce heat loss to the stirrer body or other parts, and avoid affecting surrounding components due to heat loss. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the stirrer body structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the heating jacket installation structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the heating jacket of this utility model;

[0025] Figure 4 This is a schematic diagram of the upper and middle partitions of this utility model;

[0026] Figure 5 This is a schematic diagram of the heating ring structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the connecting block structure of this utility model.

[0028] In the diagram: 1. Stirrer body; 2. Heating jacket; 3. Upper partition; 4. Middle partition; 5. Lower partition; 6. Heating ring; 7. Heat-conducting ring; 8. Fixing block; 9. Fixing rod; 10. Connecting block. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 This utility model provides a technical solution: a heating device for a magnetic stirrer, including a stirrer body 1, a heating sleeve 2, an upper partition 3, a middle partition 4, a lower partition 5, a heating ring 6, a heat-conducting ring 7, a fixing block 8, a fixing rod 9, and a connecting block 10.

[0031] The upper partition 3 and the middle partition 4 form a double-layer support structure, which is installed on the lower surface of the heating sleeve 2. The heating sleeve 2 is fitted onto the outer surface of the stirring platform of the stirrer body 1. A heating structure is installed inside the double-layer support structure formed by the upper partition 3 and the middle partition 4. The heating structure achieves uniform heating through heating rings 6 and heat-conducting rings 7. The heating structure includes heating rings 6, which are hollow circular structures. The upper and lower surfaces of heating rings 6 are fixedly connected to the lower surface of the upper partition 3 and the upper surface of the middle partition 4, respectively. Heating rings 6 are graphene heating films. There are four heating rings 6, which are nested in a concentric circular structure. The four heating rings 6 are connected by wires, and a heat-conducting ring is provided between two adjacent heating rings 6. 7. The heat-conducting ring 7 is made of heat-conducting material. The upper and lower surfaces of the heat-conducting ring 7 are fixedly connected to the lower surface of the upper partition 3 and the upper surface of the middle partition 4, respectively. The upper partition 3 is a circular mica sheet, and the middle partition 4 below the upper partition 3 is a circular mica sheet of the same size. The upper partition 3 and the middle partition 4 are connected by a fixing structure. The fixing structure includes a fixing block 8, which is an arc-shaped block structure with a C-shaped cross section. The fixing block 8 wraps around the edges of the upper partition 3 and the middle partition 4. The inner surface of the fixing block 8 is fixedly connected to the upper surface of the upper partition 3 and the lower surface of the middle partition 4, respectively. A fixing rod 9 is provided through the surface of the upper partition 3. The fixing rod 9 is a threaded rod structure and is threadedly connected to the inner surface of the heating sleeve 2.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, when using this device, first connect the device to the stirrer body 1, remove the heating sleeve 2 from the outer surface of the stirring platform of the stirrer body 1, and use the fixing rod 9 to thread the upper partition plate 3 to the inner surface of the heating sleeve 2. Then reinstall the heating sleeve 2 to the outer surface of the stirring platform of the stirrer body 1. After the power is turned on, the carbon molecules in the graphene heating ring 6 generate phonons, ions and electrons in the resistor. The generated carbon molecule clusters generate heat energy by rubbing and colliding with each other, thus making the heating ring 6 heat up. Since the heating ring 6 is nested in concentric circles, the heat is evenly diffused from the center to the surrounding area. At the same time, the adjacent heat-conducting ring 7 assists in conducting heat to ensure that the surface temperature of the upper partition plate 3 is uniform, and finally the surface temperature of the stirring platform is uniform. The upper partition plate 3 and the middle partition plate 4, which are composed of double-layer mica sheets, and the connecting fixing block 8 can ensure that the heating device maintains structural stability during long-term use, avoid deformation or displacement caused by high temperature, and ensure heating uniformity and device reliability.

[0033] A heat insulation structure is provided below the double-layer support structure. The heat insulation structure isolates heat by accommodating heat insulation filler through the lower partition plate 5 and the connecting block 10. The heat insulation structure includes the lower partition plate 5, which is located below the middle partition plate 4. The lower partition plate 5 is a heat insulation board. The lower partition plate 5 and the middle partition plate 4 are fixedly connected by the connecting block 10. The connecting block 10 is a densely laid hollow regular hexagonal block, and the interior of the connecting block 10 is filled with glass fiber.

[0034] like Figure 4 and Figure 5 As shown, during the heating process, the lower partition 5 and the connecting block 10 located below the middle partition 4 isolate the heat, and the glass fiber filled in the connecting block 10 can further block the heat from being transferred downwards, so that the heat is mainly concentrated in the stirring platform area, reducing energy loss, and ensuring the safety of the components below the device.

[0035] Working principle: When using the heating device of this magnetic stirrer, the upper partition plate 3 is fixedly connected to the heating sleeve 2 by the fixing rod 9. Then, the heating sleeve 2 is fitted and installed on the outer surface of the stirring platform of the stirrer body 1. The power supply of the heating ring 6 is turned on, and the heating ring 6 heats up. The heat is radiated to all sides through the ring structure, while the heat-conducting ring 7 between adjacent heating rings 6 conducts and diffuses the heat evenly, avoiding local overheating. The lower partition plate 5 below the middle partition plate 4 and the connecting block 10 form a heat insulation structure to prevent heat from dissipating downwards, so that the heat is concentrated in the stirring platform area, which increases the overall practicality.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating device for a magnetic stirrer, comprising an upper partition (3) and a middle partition (4), wherein the upper partition (3) and the middle partition (4) constitute a double-layer support structure, the double-layer support structure is installed on the lower surface of a heating sleeve (2), and the heating sleeve (2) is fitted onto the outer surface of the stirring platform of the stirrer body (1), characterized in that: A heating structure is provided inside the double-layer support structure formed by the upper partition (3) and the middle partition (4). The heating structure achieves uniform heating through a heating ring (6) and a heat-conducting ring (7). The heating structure includes a heating ring (6), which is a hollow circular ring structure. The upper and lower surfaces of the heating ring (6) are respectively fixedly connected to the lower surface of the upper partition (3) and the upper surface of the middle partition (4).

2. The heating device for a magnetic stirrer according to claim 1, characterized in that: The heating ring (6) is a graphene heating film. There are four heating rings (6) arranged in a concentric circle structure and connected by wires.

3. The heating device for a magnetic stirrer according to claim 1, characterized in that: A heat-conducting ring (7) is provided between two adjacent heating rings (6). The heat-conducting ring (7) is made of heat-conducting material. The upper and lower surfaces of the heat-conducting ring (7) are respectively fixedly connected to the lower surface of the upper partition (3) and the upper surface of the middle partition (4).

4. The heating device for a magnetic stirrer according to claim 1, characterized in that: The upper partition (3) is a circular mica sheet, and the middle partition (4) below the upper partition (3) is a circular mica sheet of the same size. The upper partition (3) and the middle partition (4) are connected by a fixed structure.

5. The heating device for a magnetic stirrer according to claim 4, characterized in that: The fixing structure includes a fixing block (8), which is an arc-shaped block structure with a C-shaped cross section. The fixing block (8) wraps around the edges of the upper partition (3) and the middle partition (4). The inner surface of the fixing block (8) is fixedly connected to the upper surface of the upper partition (3) and the lower surface of the middle partition (4), respectively. A fixing rod (9) is provided through the surface of the upper partition (3). The fixing rod (9) is a threaded rod structure and is threadedly connected to the inner surface of the heating sleeve (2).

6. The heating device for a magnetic stirrer according to claim 1, characterized in that: A heat insulation structure is provided below the double-layer support structure. The heat insulation structure isolates heat by accommodating the heat insulation filler through the lower partition plate (5) and the connecting block (10).

7. The heating device for a magnetic stirrer according to claim 6, characterized in that: The heat insulation structure includes a lower partition plate (5), which is located below the middle partition plate (4). The lower partition plate (5) is a heat insulation board. The lower partition plate (5) and the middle partition plate (4) are fixedly connected by a connecting block (10). The connecting block (10) is a densely laid hollow regular hexagonal block, and the interior of the connecting block (10) is filled with glass fiber.

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