Heating device for sample pad

Abstract

The present invention provides a heating device for a sample pad. The sample pad includes a sample pad shell, a metal piece arranged in the sample pad shell, and a liquid wicking pad arranged in the sample pad shell and in thermal contact with the metal piece; the heating device includes: a shell with an inner cavity and a heating component arranged in the inner cavity; when the sample pad is placed on the heating device, the heating component can heat the metal piece of the sample pad in a non-contact heating manner, thereby heating the liquid wicking pad through the metal piece. The heating device of the present invention heats the metal piece in the sample pad, thereby heating the liquid wicking pad in the sample pad through the metal piece, so that the target object is enriched and concentrated on the liquid wicking pad, thereby increasing the concentration of the target object on the liquid wicking pad, thereby increasing the sensitivity and accuracy of subsequent detection.

Description

Technical Field

[0001] The present invention relates to the technical field of heating devices, and in particular to a heating device for a sample pad. Background Art

[0002] There are various heating devices currently, but there is no heating device specifically used to heat the absorbent pad of the sample pad, so that the target cannot be enriched and concentrated on the absorbent pad by heating, and the concentration of the target on the absorbent pad cannot be further increased to further improve the sensitivity and accuracy of subsequent detection.

[0003] Therefore, it is necessary to provide a heating device for a sample pad to at least partially solve the problems existing in the prior art. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a heating device for a sample pad, aiming to solve the problem that there is no heating device specifically used for heating the liquid absorption pad of the sample pad in the prior art.

[0005] In the present invention, a heating device for a sample pad is provided. The sample pad comprises a sample pad housing, a metal member disposed in the sample pad housing, and a liquid absorbing pad disposed in the sample pad housing and in thermal contact with the metal member, and the heating device comprises:

[0006] a housing having an interior cavity; and

[0007] A heating component, wherein the heating component is disposed in the inner cavity;

[0008] Wherein, when the sample pad is placed on the heating device, the heating component can heat the metal piece of the sample pad in a non-contact heating manner, thereby heating the liquid absorption pad through the metal piece.

[0009] Preferably, the non-contact heating method is electromagnetic induction heating.

[0010] Preferably, the heating device further comprises a temperature sensor, which is configured to determine the temperature of the absorbent pad.

[0011] Preferably, the temperature sensor is arranged in the inner cavity, the heating device further includes a patch, the patch is arranged on the heating component, when the sample pad is placed on the heating device, the patch is located between the heating component and the sample pad, and the temperature sensor is further configured to sense the temperature of the patch and determine the temperature of the absorbent pad by the sensed temperature of the patch.

[0012] Preferably, the temperature sensor is an infrared temperature sensor arranged in the shell, and the shell is provided with a shell hollow portion for allowing the light path of the infrared temperature sensor to pass through and reach the absorbent pad to sense the temperature of the absorbent pad or reach the metal part to determine the temperature of the absorbent pad.

[0013] Preferably, the heating device further comprises a base, the shell is mounted on the base, and the base has a protruding portion extending relative to the shell, and the protruding portion has a groove or a hollow portion for placing the sample cup.

[0014] Preferably, the heating assembly comprises a heating unit and a power supply unit, and the heating unit is connected to the power supply unit and supplied with power by the power supply unit.

[0015] Preferably, the heating unit comprises a coil and a coil support, and the coil is disposed on and supported by the coil support.

[0016] Preferably, the power supply unit comprises a rechargeable battery and a charging interface, the rechargeable battery is arranged in the inner cavity of the shell, and the charging interface is arranged on the outer surface of the shell.

[0017] Preferably, the heating device further comprises a circuit board, and the circuit board is arranged in the inner cavity of the shell.

[0018] The heating device of the present invention heats the metal piece in the sample pad, thereby heating the absorbent pad in the sample pad through the metal piece, so that the target object is enriched and concentrated on the absorbent pad, and the liquid flow caused by evaporating the solvent can further increase the adsorption capacity of the absorbent pad, thereby increasing the concentration of the target object on the absorbent pad, and further improving the sensitivity and accuracy of subsequent detection; and through non-contact heating, it is possible to heat the metal piece arranged in the sample pad shell through the heating component arranged in the shell of the heating device, and then heat the absorbent pad through the metal piece, and in this process, the sample pad shell and the heating device shell will not be affected, and normal use will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Non-limiting and non-exhaustive embodiments of the present invention are described, by way of example, with reference to the following drawings, in which:

[0020] Figure 1 is a three-dimensional schematic diagram of a heating device according to an embodiment of the present invention;

[0021] Figure 2 is a diagram of a use state of a heating device according to an embodiment of the present invention, wherein a sample pad is placed in a sample cup;

[0022] Figure 3 is a perspective schematic diagram of a heating device according to an embodiment of the present invention, wherein a sample cup is placed in a groove; and

[0023] Figure 4 is an exploded perspective view of a heating device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] In the present invention, a heating device for a sample pad is provided. Figure 1 is a schematic three-dimensional diagram of a heating device 100 according to an embodiment of the present invention. Figure 2 1 is a diagram of a heating device 100 in use according to an embodiment of the present invention, wherein a sample pad 200 is placed in a sample cup 130 . Figure 3 is a three-dimensional schematic diagram of a heating device 100 according to an embodiment of the present invention, wherein a sample cup 130 is placed in a groove 1511 . Figure 4 is an exploded perspective view of a heating device 100 according to an embodiment of the present invention.

[0026] The following will be combined Figures 1 to 4 The heating device 100 according to the embodiment of the present invention will be described in detail.

[0027] The heating device 100 provided by the present invention is used for Figure 2 The sample pad 200 shown in FIG. Figure 2 As shown, the sample pad 200 includes a sample pad housing 210, a metal piece (not shown) disposed in the sample pad housing 210, and a liquid absorbing pad 220 disposed in the sample pad housing 210 and in thermal contact with the metal piece. One end of the liquid absorbing pad 220 extends from the housing 210 to absorb the sample liquid to be tested. The heating device 100 is used to heat the metal piece of the sample pad 200 so as to heat the liquid absorbing pad 220 through the metal piece.

[0028] like Figures 1 to 4As shown, the heating device 100 includes a shell 110 and a heating component. The shell 110 has an inner cavity, which can form a receiving space to accommodate components such as the heating component of the heating device 100. Specifically, the shell 110 is generally box-shaped. The heating component is arranged in the inner cavity of the shell 110. When the sample pad 200 is placed on the heating device 100, the heating component can heat the metal part of the sample pad 200 in a non-contact heating manner, thereby heating the absorbent pad 220 through the metal part. The non-contact heating method refers to that the heating component heats the metal part of the sample pad 200 in a non-contact manner, for example, it can be an electromagnetic induction heating method.

[0029] In this embodiment, the heating assembly includes a heating unit and a power supply unit, and the heating unit is connected to the power supply unit and is supplied with power by the power supply unit. Figure 4 As shown, the heating unit includes a coil 121 and a coil support 122, and the coil 121 is arranged on and supported by the coil support 122. The power supply unit includes a rechargeable battery 123 and a charging interface (not shown), the rechargeable battery is arranged in the inner cavity of the housing 110 and is electrically connected to the coil 121 to supply power to the coil 121, and the charging interface is arranged on the outer surface of the housing 110, and can be connected to an external power source through a wire to charge the rechargeable battery 123 or directly supply power to the coil 121.

[0030] Preferably, the heating device 100 further includes a temperature sensor (not shown), which is configured to determine the temperature of the absorbent pad 220 of the sample pad 200. Preferably, the temperature sensor is disposed in the inner cavity of the housing 110, and alternatively, the temperature sensor may also be disposed outside the housing 110. By determining the temperature of the absorbent pad 220 of the sample pad 200 through the temperature sensor, the real-time heating temperature of the heating device 100 can be better controlled according to the determined temperature of the absorbent pad 220 to heat the absorbent pad 220 to and maintain it at a desired temperature.

[0031] Preferably, if Figure 1 , Figure 3 and Figure 4 As shown, the heating device 100 further includes a patch 140, and the patch 140 is disposed on the heating component. In other embodiments not shown in the present invention, the patch 140 can also be disposed on a temperature sensor, and the temperature sensor is disposed on the heating component, that is, the patch 140 is indirectly disposed on the heating component. When the sample pad 200 is placed on the heating device 100, the patch 140 is located between the heating component and the sample pad 200, and the patch 140 is configured to indirectly reflect the temperature of the liquid absorption pad 220 of the sample pad 200. Specifically, as shown in FIG. Figure 4As shown, the patch 140 is arranged on the coil 121 and on the outer surface 111 of the housing 110, and the patch 140 is in a square sheet shape. However, in other embodiments of the present invention not shown, the patch 140 can also be completely arranged in the inner cavity of the housing 110, and the patch 140 can also be in any other suitable shape, such as a circular sheet shape, an elliptical sheet shape, a triangular sheet shape, etc. Preferably, a protrusion 1401 is provided at the center position of the patch 140, and correspondingly, a hole 1211 is provided at the center position of the coil 121, and the protrusion 1401 of the patch 140 can be inserted into the hole 1211 of the coil 121 so as to position the patch 140 at the center position of the coil 121. When the heating device 100 has the patch 140, the temperature sensor can be further configured to sense the temperature of the patch 140 and determine the temperature of the liquid absorption pad 220 of the sample pad 200 by the sensed temperature of the patch 140. The temperature sensor may be a contact temperature sensor, that is, the temperature sensor is in contact with the patch 140 to sense the temperature of the patch 140. Alternatively, the temperature sensor may also be a non-contact temperature sensor, such as an infrared temperature sensor, the light path of the infrared temperature sensor is irradiated on the patch 140 to sense the temperature of the patch 140. Specifically, when in use, the coil 121 will heat the metal part in the sample pad housing by non-contact heating (such as electromagnetic induction), thereby heating the wicking pad 220 through the metal part, and the temperature sensor will sense the temperature of the patch 140 located between the coil 121 and the sample pad 200. According to the empirical value of the test, the difference between the temperature of the patch 140 and the temperature of the wicking pad 220 of the sample pad 200 can be obtained. Therefore, the temperature of the wicking pad 220 of the sample pad 200 can be determined by the difference and the temperature of the patch 140 sensed by the temperature sensor. By providing the patch 140 , even if the temperature sensor is provided in the inner cavity of the housing 110 , the temperature of the absorbent pad 220 provided in the sample pad housing 210 can be determined very conveniently.

[0032] In other embodiments not shown in the present invention, the heating device 100 may not have the patch 140. In this case, the temperature sensor may be an infrared temperature sensor disposed in the housing 110. The housing 110 is provided with a housing hollow portion (not shown). The sample pad housing 210 also has a sample pad hollow portion. The optical path of the infrared temperature sensor can pass through the housing hollow portion and the sample pad hollow portion and reach the liquid wicking pad 220 in the sample pad 200 to sense the temperature of the liquid wicking pad 220 of the sample pad 200 or reach the metal part in the sample pad 200 to determine the temperature of the liquid wicking pad 220 of the sample pad 200. When the optical path of the infrared temperature sensor reaches the metal part in the sample pad 200, the infrared temperature sensor senses the temperature of the metal part in the sample pad 200. According to the empirical value of the test, the difference between the temperature of the metal part of the sample pad 200 and the temperature of the liquid wicking pad 220 of the sample pad 200 can be obtained. Therefore, the temperature of the liquid wicking pad 220 of the sample pad 200 can be determined by the difference and the temperature of the metal part sensed by the temperature sensor. Alternatively, in the case where the heating device 100 does not have the patch 140, the magnetic field of the heating component can also directly act on the temperature sensing part of the temperature sensor. When the sample pad 200 is placed on the heating device 100, the temperature sensor is located between the heating component and the sample pad 200. The temperature sensor is configured to indirectly reflect the temperature of the liquid wicking pad 220 of the sample pad 200 by sensing its own temperature. Specifically, when in use, the coil 121 will heat the metal part in the sample pad housing by electromagnetic induction, thereby heating the liquid wicking pad 220 through the metal part, and the temperature sensor will sense its own temperature. According to the empirical value of the test, the difference between the temperature of the temperature sensor and the temperature of the liquid wicking pad 220 of the sample pad 200 can be obtained. Therefore, the temperature of the liquid wicking pad 220 of the sample pad 200 can be determined by the difference and the temperature of the temperature sensor itself sensed.

[0033] Preferably, if Figures 1 to 4 As shown, the heating device 100 further includes a base 150, and the shell 110 is installed on the base 150. The base 150 is configured to support the shell 110 and all components located in the inner cavity of the shell 110. Preferably, a plurality of first connecting members are provided on the inner surface of the shell 110, and a plurality of second connecting members cooperating with the first connecting members are provided on the inner surface of the base 150. The first connecting members and the second connecting members are configured to combine the shell 110 with the base 150 in a detachable manner, thereby facilitating the installation and maintenance of the components in the inner cavity of the shell 110. Preferably, as Figures 1 to 3As shown, the base 150 has an extension portion 151 extending relative to the housing 110, and the extension portion 151 has a groove 1511 or a hollow portion for placing the sample cup 130. By providing the groove 1511 or the hollow portion, the sample cup 130 can be placed at a fixed position on the extension portion 151, and the sample cup 130 can be removed from the groove 1511 or the hollow portion, thereby facilitating the cleaning of the sample cup 130. In other embodiments of the present invention not shown, the sample cup 130 can also be installed on the extension portion 151 in other ways, such as snap connection, fixed connection, etc.

[0034] Preferably, the absorbing pad 220 absorbs the sample liquid and the absorbing pad 220 is heated simultaneously. Figure 2 As shown, when the sample pad 200 is inserted into the sample cup 130, one end of the liquid absorbing pad 220 of the sample pad 200 is immersed in the sample liquid, so that the liquid absorbing pad 220 of the sample pad 200 can absorb the sample liquid from the sample cup 130 while the heating device 100 heats the liquid absorbing pad 220. By heating the liquid absorbing pad 220 of the sample pad 200, the target is further enriched and concentrated on the liquid absorbing pad 220 of the sample pad 200, and the liquid flow caused by evaporating the solvent can be further increased, so that the adsorption amount of the liquid absorbing pad 220 of the sample pad 200 can be increased, thereby increasing the concentration of the target on the liquid absorbing pad 220 of the sample pad 200, and then improving the sensitivity and accuracy of subsequent detection. In other embodiments not shown in the present invention, the sample pad 200 absorbs the sample liquid and the sample pad 200 is heated. When the heating device 100 is used, the sample liquid can be dripped through the liquid adding part 230 of the sample pad 200, and then the sample pad 200 is inserted into the sample cup 130 so that the heating device 100 heats the metal part of the sample pad 200 and heats the sample pad 220 through the metal part. After a predetermined time, when the solvent evaporates, the sample pad 200 is removed from the sample cup 130. 0, and then drip the sample liquid through the liquid adding part 230 of the sample pad 200, and then insert the sample pad 200 into the sample cup 130 so that the heating device 100 heats the metal part of the sample pad 200, thereby heating the liquid absorbing pad 220 through the metal part... Repeat the above steps, and the target object is further enriched and concentrated on the liquid absorbing pad 220 of the sample pad 200 by dripping the sample liquid and heating multiple times, thereby increasing the concentration of the target object on the liquid absorbing pad 220 of the sample pad 200, thereby improving the sensitivity and accuracy of subsequent detection.

[0035] Preferably, the heating device 100 further includes a circuit board 124, which is arranged in the inner cavity of the housing 110 and is configured to integrate the circuit functions of the heating device 100. The circuit board 124 can be mounted on the coil support 122 or on a separate support. Preferably, the heating device 100 further includes a button 125 and a display 126. The button 125 is configured to control the start and shut down of the heating device 100, and an indicator light (not shown) for indicating the working state of the heating device 100 may be provided on the button 125. The display 126 is configured to display information such as the heating temperature and heating time of the heating device 100. The button 125, the display 126, the temperature sensor as described above, and the charging interface can all be electrically connected to the circuit board 160.

[0036] A specific embodiment of using the heating device 100 of the present invention to heat the metal piece of the sample pad 200 and thus heating the liquid absorption pad 220 through the metal piece will be described below.

[0037] Example 1

[0038] Place the sample cup 130 containing the sample liquid in the groove 1511 on the base 150 of the heating device 100, insert the sample pad 200 into the sample cup 130, so that a part of the absorbent pad 220 of the sample pad 200 is immersed in the sample liquid, press the button 125 to start the heating device 100, and the heating device 100 heats the metal parts in the sample pad shell by electromagnetic induction, raising the temperature to 60°C, wait for 10 minutes, so that the target object is enriched and concentrated on the absorbent pad 220 of the sample pad 200, pull out the sample pad 200, and obtain the sample pad 200 enriched with the target object.

[0039] The beneficial effects of the present invention are as follows: the heating device of the present invention is small and convenient, and has a simple structure; the heating device of the present invention heats the metal part in the sample pad, and thus heats the absorbent pad in the sample pad through the metal part, so that the target object is enriched and concentrated on the absorbent pad, and at the same time, the liquid flow caused by evaporating the solvent can further increase the adsorption amount of the absorbent pad, thereby increasing the concentration of the target object on the absorbent pad, and then improving the sensitivity and accuracy of subsequent detection; and through non-contact heating, it is possible to heat the metal part arranged in the sample pad shell through the heating component arranged in the shell of the heating device, and then heat the absorbent pad through the metal part, and in this process, the sample pad shell and the shell of the heating device will not be affected, and normal use will not be affected.

[0040] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] Although the present invention has been described in conjunction with the embodiments, it should be understood by those skilled in the art that the above description and the accompanying drawings are only exemplary and non-restrictive, and the present invention is not limited to the disclosed embodiments. Various modifications and variations are possible without departing from the spirit of the present invention.

Claims

1. A heating device for a sample pad, the sample pad comprising a sample pad housing, a metal member disposed in the sample pad housing, and a liquid absorbing pad disposed in the sample pad housing and in thermal contact with the metal member, characterized in that: The heating device comprises: a housing having an interior cavity; and A heating component, wherein the heating component is disposed in the inner cavity; Wherein, when the sample pad is placed on the heating device, the heating component can heat the metal part of the sample pad in a non-contact heating manner, thereby heating the absorbent pad through the metal part; the heating device further includes a patch, which is arranged on the heating component, and when the sample pad is placed on the heating device, the patch is located between the heating component and the sample pad.

2. The heating device according to claim 1, characterized in that The non-contact heating method is electromagnetic induction heating.

3. The heating device according to claim 1, characterized in that: The heating device further includes a temperature sensor configured to determine a temperature of the absorbent pad.

4. The heating device according to claim 3, characterized in that: The temperature sensor is disposed in the inner cavity, and the temperature sensor is further configured to sense the temperature of the patch and determine the temperature of the absorbent pad by the sensed temperature of the patch.

5. The heating device according to claim 3, characterized in that: The temperature sensor is an infrared temperature sensor arranged in the shell, and the shell is provided with a shell hollow portion for allowing the light path of the infrared temperature sensor to pass through and reach the absorbent pad to sense the temperature of the absorbent pad or reach the metal part to determine the temperature of the absorbent pad.

6. The heating device according to any one of claims 1 to 5, characterized in that: The heating device further comprises a base, the shell is mounted on the base, and the base has a protruding portion protruding relative to the shell, and the protruding portion has a groove or a hollow portion for placing the sample cup.

7. The heating device according to any one of claims 1 to 5, characterized in that The heating assembly includes a heating unit and a power supply unit, wherein the heating unit is connected to the power supply unit and is supplied with power by the power supply unit.

8. The heating device according to claim 7, characterized in that: The heating unit includes a coil and a coil supporter on which the coil is disposed and supported.

9. The heating device according to claim 8, characterized in that: The power supply unit comprises a rechargeable battery and a charging interface, the rechargeable battery is arranged in the inner cavity of the shell, and the charging interface is arranged on the outer surface of the shell.

10. The heating device according to claim 1, characterized in that The heating device further includes a circuit board, which is disposed in the inner cavity of the housing.

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