Magnetic stirrer

Abstract

The utility model relates to the technical field of stirrers, in particular to a magnetic stirrer. According to the technical scheme, the magnetic stirrer comprises a magnet assembly and a heating assembly, and a heat insulation assembly is arranged between the magnet assembly and the heating assembly. The magnetic stirrer has the advantages that the heat insulation assembly can reduce the probability that the heating function affects work of the magnet, and the working efficiency of the magnetic stirrer is improved.

Description

Technical Field

[0001] The present application relates to the technical field of stirrers, and in particular to a magnetic stirrer. Background Art

[0002] A magnetic stirrer is a laboratory instrument used for liquid mixing. It is mainly used to stir or heat and stir low-viscosity liquids or solid-liquid mixtures at the same time. Its basic principle is to use the principle of magnetic field that like charges repel and opposite charges attract, and use the magnetic field to push the magnetic stirrer placed in the container to rotate in a circle, thereby achieving the purpose of stirring the liquid. In conjunction with the heating temperature control system, the sample temperature can be heated and controlled according to specific experimental requirements, maintaining the temperature conditions required by the experimental conditions, and ensuring that the liquid mixing meets the experimental requirements.

[0003] However, there may be a phenomenon that the high temperature of heating affects the magnetic field of the magnet, affecting the working efficiency of the magnetic stirrer. Utility Model Content

[0004] In order to reduce the probability that the heating function affects the operation of the magnet and improve the working efficiency of the magnetic stirrer, the present application provides a magnetic stirrer.

[0005] A magnetic stirrer provided in the present application adopts the following technical solution: it includes a magnet assembly and a heating assembly, and a heat insulation assembly is arranged between the magnet assembly and the heating assembly.

[0006] By adopting the above technical solution, the thermal insulation component can reduce the probability that the heating function affects the operation of the magnet, thereby improving the working efficiency of the magnetic stirrer.

[0007] Preferably, the thermal insulation component includes thermal insulation cotton and a thermal insulation cotton support member, the thermal insulation cotton support member is arranged above the magnet assembly, the thermal insulation cotton is arranged above the thermal insulation cotton support member, the thermal insulation cotton support member is wrapped around the thermal insulation cotton, and the heating component is located above the thermal insulation cotton.

[0008] By adopting the above technical solution, the thermal insulation cotton can isolate and absorb part of the heat, reduce the influence of the heating component on the working performance of the magnet component, and improve the working efficiency of the magnetic stirrer.

[0009] Preferably, it further comprises a magnet housing, the magnet assembly is embedded in the magnet housing, a magnet exposure opening is opened at the top of the magnet housing, and the magnet assembly is exposed to the outside of the magnet housing through the magnet exposure opening.

[0010] By adopting the above technical solution, the magnet housing can protect the magnet assembly, reduce the probability of the stirring liquid dripping onto the magnet assembly and causing corrosion of the magnet assembly, and extend the service life of the magnet assembly to a certain extent.

[0011] Preferably, a plurality of the thermal insulation cottons are provided, and the plurality of the thermal insulation cottons are stacked in sequence on the thermal insulation cotton support member along the vertical direction.

[0012] By adopting the above technical solution, multiple insulation cottons are stacked in sequence to improve the insulation effect.

[0013] Preferably, a ceramic heating plate is provided on the magnet housing, the ceramic heating plate is wrapped around the heating assembly, and the bottom of the ceramic heating plate is used to be connected to the magnet housing.

[0014] By adopting the above technical solution, the ceramic heating plate increases the contact area between the heating component and the mixture to be stirred placed on the stirrer.

[0015] Preferably, a clamping plate and a clamping member are provided on the magnet housing, the clamping plate cover is provided on the magnet exposure port, a plurality of heat dissipation holes are penetrated through the clamping plate, a plurality of heat dissipation holes are spaced apart on the clamping plate, the clamping member is vertically arranged on the clamping plate, and the clamping member is connected to the heat insulation cotton support member through a positioning member.

[0016] By adopting the above technical solution, the clamping plate and the clamping member further isolate the magnet assembly from the heating assembly, and the clamping plate and the clamping member provide heat dissipation space for the agitator.

[0017] Preferably, the positioning member is a positioning column, and the heat insulation cotton support member is penetrated by a positioning hole for the positioning column to pass through.

[0018] By adopting the above technical solution, the positioning column is embedded in the positioning hole, which means that the clamping member has been installed in place on the insulation cotton support member.

[0019] Preferably, the clamping member includes a horizontally arranged supporting plate, a clip arranged above the supporting plate and an insert arranged below the supporting plate, the positioning column is arranged on the supporting plate, two clips and two inserts are arranged on the supporting plate, both of the inserts are used to be inserted into the clamping plate and relatively fixed with the clamping plate, and the two clips are used to be embedded in the side wall of the ceramic heating plate.

[0020] By adopting the above technical solution, the clamping piece makes the agitator structure more compact.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The thermal insulation component can reduce the probability of the heating function affecting the work of the magnet and improve the working efficiency of the magnetic stirrer;

[0023] 2. The ceramic heating plate increases the contact area between the heating component and the mixture to be stirred placed on the stirrer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this application;

[0025] Figure 2 It is a partial structural diagram of this application;

[0026] Figure 3 It is a partial structural diagram of this application;

[0027] Figure 4 It is a cross-sectional schematic diagram of a part of the structure of the present application;

[0028] Figure 5 It is an exploded schematic diagram of a part of the structure of the present application;

[0029] Figure 6 It is a partial structural diagram of this application.

[0030] Explanation of the accompanying drawings: 11. magnet assembly; 111. magnet; 112. magnet fixing; 113. magnet exposure port; 12. magnet housing; 121. brushless motor; 122. ground pin; 123. LED display; 124. touch button; 125. ceramic heating plate; 126. clamping plate; 127. heat dissipation hole; 13. heating plate; 14. thermal insulation assembly; 141. thermal insulation cotton; 142. thermal insulation cotton support; 15. clamping member; 151. load-bearing plate; 152. clip; 153. insert; 154. positioning column; 155. positioning hole. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] The present application discloses a magnetic stirrer, which is used to reduce the probability that a heating function affects the operation of a magnet 111 and improve the working efficiency of the magnetic stirrer.

[0033] refer to Figure 1 , Figure 2A magnetic stirrer comprises a magnet assembly 11, a heating assembly and a magnet housing 12, wherein the magnet assembly 11 is embedded in the magnet housing 12, a magnet exposure opening 113 is provided at the top of the magnet housing 12, the magnet assembly 11 is exposed to the magnet housing 12 through the magnet exposure opening 113, the magnet housing 12 protects the magnet assembly 11, a brushless motor 121 is arranged in the magnet housing 12, the magnet assembly 11 comprises a magnet 111 and a magnet fixing 112, the magnet fixing 112 is arranged below the magnet 111, the magnet fixing 112 is sleeved on the output shaft of the brushless motor 121, the output shaft of the brushless motor 121 is coaxially connected to the magnet 111, and four ground feet 122 are arranged at the bottom of the magnet housing 12, and the four ground feet 122 are distributed in a rectangular shape at the bottom of the magnet housing 12.

[0034] refer to Figure 1 , Figure 3 An LED display screen 123 and a touch button 124 are arranged on the upper surface of the magnet housing 12. The whole machine operation setting button is touch-triggered, highly sensitive and easy to operate.

[0035] refer to Figure 3 , Figure 4 The heating component includes a heating plate 13, and the heating plate 13 is arranged above the magnet 111. Since the high temperature of heating may affect the magnetic field of the magnet and affect the working efficiency of the magnetic stirrer, an insulation component 14 is arranged between the magnet component 11 and the heating component. The insulation component 14 can reduce the probability of the heating function affecting the operation of the magnet 111 and improve the working efficiency of the magnetic stirrer.

[0036] Specifically, the thermal insulation component 14 includes thermal insulation cotton 141 and a thermal insulation cotton support 142. The thermal insulation cotton support 142 is arranged above the magnet component 11, and the thermal insulation cotton 141 is arranged above the thermal insulation cotton support 142. The thermal insulation cotton support 142 is wrapped around the thermal insulation cotton 141. In the present embodiment, a total of two thermal insulation cottons 141 are arranged, and the two thermal insulation cottons 141 are stacked in sequence above the thermal insulation cotton support 142 in a vertical direction. The heating component is located above the thermal insulation cotton 141, that is, the heating plate 13 and the two thermal insulation cottons 141 are stacked in sequence on the thermal insulation cotton support 142 in a vertical direction. The thermal insulation cotton 141 can isolate and absorb part of the heat, reduce the influence of the heating component on the working performance of the magnet component 11, and improve the working efficiency of the magnetic stirrer.

[0037] refer to Figure 1 , Figure 4In order to increase the contact area between the mixture to be stirred placed on the stirrer and the heating plate 13, a ceramic heating plate 125 is provided on the magnet housing 12. The ceramic heating plate 125 is wrapped around the heating component. The bottom of the ceramic heating plate 125 is used to be connected to the magnet housing 12, and the ceramic heating plate 125 covers the magnet exposure port 113. The ceramic heating plate 125 not only increases the contact area, but also makes the mixture heated more evenly.

[0038] Refer to Figure 5. Figure 6 In order to reduce the probability of relative displacement between the thermal insulation cotton 141, the heating plate 13 and the ceramic heating plate 125, a clamping plate 126 and a clamping member 15 are provided on the magnet housing 12. The clamping plate 126 is covered on the magnet exposure port 113. A plurality of heat dissipation holes 127 are penetrated on the clamping plate 126. The plurality of heat dissipation holes 127 are distributed at intervals on the clamping plate 126. The clamping member 15 is plugged and connected to the clamping plate 126. The clamping member 15 is connected to the thermal insulation cotton support member 142 through a positioning member. Four clamping members 15 are provided. The four clamping members 15 are distributed on the clamping plate 126 in a rectangular shape. The four clamping members 15 are connected and arranged in sequence.

[0039] Specifically, the clamping member 15 includes a horizontally arranged bearing plate 151, a clip 152 arranged above the bearing plate 151, and an insert 153 arranged below the bearing plate 151. Two clips 152 are arranged at intervals at one end of each bearing plate 151, that is, there are four clips 152 on each bearing plate 151, and the acute angle between the clip 152 and the bearing plate 151 is 45 degrees. The adjacent clips 152 of two adjacent clamping members 15 are arranged on the same straight line. Each insert 153 is used to be inserted into the clamping plate 126 and relatively fixed with the clamping plate 126. The two clips 152 are used to be embedded in the side wall of the ceramic heating plate 125. The positioning member is a positioning column 154. The positioning column 154 is arranged on the bearing plate 151. The thermal insulation cotton support member 142 is penetrated by a positioning hole 155 for the positioning column 154 to pass through. The positioning column 154 is embedded in the positioning hole 155, which means that the clamping member 15 has been installed in place on the thermal insulation cotton support member 142.

[0040] The implementation principle of a magnetic stirrer in an embodiment of the present application is as follows: the heat insulation component 14 can reduce the probability that the heating function affects the operation of the magnet 111, thereby improving the working efficiency of the magnetic stirrer.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic stirrer, comprising a magnet assembly (11) and a heating assembly, characterized in that: A heat insulation component (14) is provided between the magnet component (11) and the heating component; The thermal insulation component (14) comprises thermal insulation cotton (141) and a thermal insulation cotton support member (142); the thermal insulation cotton support member (142) is arranged above the magnet component (11); the thermal insulation cotton (141) is arranged above the thermal insulation cotton support member (142); the thermal insulation cotton support member (142) is wrapped around the thermal insulation cotton (141); and the heating component is located above the thermal insulation cotton (141).

2. A magnetic stirrer according to claim 1, characterized in that: It also comprises a magnet housing (12), the magnet assembly (11) being embedded in the magnet housing (12), a magnet exposure opening (113) being provided at the top of the magnet housing (12), and the magnet assembly (11) being exposed to the outside of the magnet housing (12) through the magnet exposure opening (113).

3. A magnetic stirrer according to claim 2, characterized in that: A plurality of the thermal insulation cottons (141) are provided, and the plurality of thermal insulation cottons (141) are stacked in sequence on the thermal insulation cotton support member (142) along a vertical direction.

4. A magnetic stirrer according to claim 3, characterized in that: A ceramic heating disc (125) is provided on the magnet housing (12), the ceramic heating disc (125) is sheathed on the heating component, and the bottom of the ceramic heating disc (125) is used to be connected to the magnet housing (12).

5. A magnetic stirrer according to claim 4, characterized in that: The magnet housing (12) is provided with a clamping plate (126) and a clamping member (15); the clamping plate (126) is covered on the magnet exposure opening (113); a plurality of heat dissipation holes (127) are penetrated through the clamping plate (126); the plurality of heat dissipation holes (127) are spaced apart on the clamping plate (126); the clamping member (15) is vertically arranged on the clamping plate (126); and the clamping member (15) is connected to the heat insulation cotton support member (142) via a positioning member.

6. A magnetic stirrer according to claim 5, characterized in that: The positioning member is a positioning column (154), and a positioning hole (155) for the positioning column (154) to pass through is penetrated through the heat insulation cotton support member (142).

7. A magnetic stirrer according to claim 6, characterized in that: The clamping member (15) comprises a horizontally arranged bearing plate (151), a clamping piece (152) arranged above the bearing plate (151), and an inserting piece (153) arranged below the bearing plate (151); the positioning column (154) is arranged on the bearing plate (151); two clamping pieces (152) and two inserting pieces (153) are arranged on the bearing plate (151); the two inserting pieces (153) are used to be inserted into the clamping plate (126) and to be relatively fixed to the clamping plate (126); and the two clamping pieces (152) are used to be embedded in the side wall of the ceramic heating plate (125).

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