Simple heating device for detection reagent card

Abstract

The utility model discloses a simple heating device for a detection reagent card, which comprises a shell, a containing cavity is arranged in the shell, one end of the shell is provided with a reagent card insertion port, the reagent card insertion port is communicated with the containing cavity, a constant-temperature heating component is arranged in the containing cavity, and the constant-temperature heating component is communicated with the containing cavity. The constant-temperature heating assembly is attached to the side wall of the containing cavity, a power line is arranged on the constant-temperature heating assembly, one end of the power line extends out of the shell, and the end, extending out of the shell, of the power line is used for being externally connected with a power source. The reagent card heating device is simple in structure, purchasing and using cost of a user can be reduced, and the using requirement for heating a small batch of reagent cards or a single reagent card is met; and the heating device is convenient to carry, and the portability of the heating device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of reagent card heating equipment, specifically to a simple heating device for test reagent cards. Background Technology

[0002] Dry chemical reagent cards are testing tools pre-loaded with dried reagents. They enable rapid detection through the reaction of samples (such as blood, urine, saliva, etc.) with the reagents and are widely used in medical, environmental, food and other fields.

[0003] In practical testing processes, many dry chemical reagent cards require incubation at a constant temperature (usually 37°C) to complete the reaction and achieve the detection objective. When using these reagent cards, heating is typically necessary. Currently, commonly used incubators employ PID temperature control systems, which are complex, bulky, and expensive, suitable for large-scale sample testing. For heating small batches or single reagent cards, such as in experimental or home applications, using existing incubators is clearly uneconomical, increasing both procurement costs and per-use expenses. Therefore, it is necessary to design a simplified, low-power, and miniaturized reagent card heating device. Utility Model Content

[0004] To address some or all of the problems existing in the prior art, this utility model provides a simple heating device for test reagent cards, including a housing with a receiving cavity inside. One end of the housing has a reagent card insertion port connected to the receiving cavity. A constant temperature heating component is provided inside the receiving cavity and is attached to the side wall of the receiving cavity. A power cord is provided on the constant temperature heating component, with one end of the power cord extending out of the housing for connecting to an external power source.

[0005] As a further improvement of this utility model, the constant temperature heating component includes a PTC constant temperature heating element and a heat-conducting element. The PTC constant temperature heating element is fixed at the center of the lower surface of the heat-conducting element, and the power cord is connected to the PTC constant temperature heating element.

[0006] As a further improvement of this utility model, the heat-conducting sheet is an aluminum sheet, and the PTC constant temperature heating element is bonded and fixed to the aluminum sheet by a high-temperature resistant adhesive.

[0007] As a further improvement of this utility model, the working temperature of the PTC constant temperature heating element is 42±0.5℃.

[0008] As a further improvement of this utility model, the housing includes a base and a top cover, the top cover being connected to the base, the base having a groove, the reagent card insertion port being disposed on the base, and the receiving groove being formed by the groove and the lower end face of the top cover.

[0009] As a further improvement of this utility model, the upper surface of the base is provided with a plurality of positioning holes, and the lower surface of the upper cover is provided with positioning pins at positions corresponding to the positioning holes, and the positioning pins are respectively inserted and fixed into the corresponding positioning holes.

[0010] As a further improvement of this utility model, there are 9 positioning holes, and the 9 positioning holes are respectively located at the edge of the upper surface of the base.

[0011] As a further improvement of this utility model, two limiting baffles are provided parallel to each other on the lower end surface of the upper cover, and the side walls of the limiting baffles abut against the two sides of the heat-conducting sheet respectively.

[0012] As a further improvement of this utility model, both the base and the top cover are made of ABS material.

[0013] As a further improvement of this utility model, a USB connector is provided at one end of the power cord extending out of the housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features a simple structure, eliminating the need for complex temperature control circuits and reducing user purchase and usage costs. It meets the heating needs for small batches or single reagent cards. Furthermore, its small overall size makes it easy to carry, enhancing the portability of the heating device. In practical use, simply place the reagent card through the reagent card insertion port onto the constant-temperature heating element within the receiving cavity, and then connect an external power source via the power cord. The power supply provides power to the constant-temperature heating element, causing it to heat up and raise the reagent card to a suitable temperature to meet the testing requirements. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0018] Figure 2This is an exploded structural diagram of an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of an embodiment of this utility model. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0021] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, a simple heating device for test reagent cards includes a housing 1, with a receiving cavity 2 inside the housing 1. One end of the housing 1 has a reagent card insertion port 11, which is connected to the receiving cavity 2. In use, the reagent card to be heated can be inserted into the receiving cavity 2 through the reagent card insertion port 11. A constant-temperature heating element 3 is installed inside the receiving cavity 2, and the constant-temperature heating element 3 is attached to the side wall of the receiving cavity 2. A power cord 4 is provided on the constant-temperature heating element 3, with one end extending out of the housing 1 for connecting to an external power source. Power is supplied to the constant-temperature heating element 3 through the external power source, enabling the constant-temperature heating element 3 to heat the reagent card.

[0024] During use, the user can insert the reagent card into the constant temperature heating component 3 in the receiving cavity 2 through the reagent card insertion port 11, and then connect the power supply through the power cord 4. After the constant temperature heating component 3 is powered on, it will generate heat and transfer the heat to the reagent card to heat it to a suitable temperature value. After heating is completed, the user can take out the reagent card through the reagent card insertion port 11.

[0025] This simple heating device for test reagent cards has a simple overall structure and does not require complex temperature control circuits, which makes the overall manufacturing cost of the heating device low, thereby reducing the purchase and usage costs for users and meeting the needs of heating small batches or single reagent cards; in addition, the overall size is relatively small and easy to carry, improving the portability of the heating device.

[0026] The constant temperature heating component 3 includes a PTC constant temperature heating element 31 and a heat-conducting plate 32. The PTC constant temperature heating element 31 is fixed at the center of the lower surface of the heat-conducting plate 32, and the power cord 4 is connected to the PTC constant temperature heating element 31. After the external power supply supplies power to the PTC constant temperature heating element 31, the PTC constant temperature heating element 31 heats up and evenly conducts the heat to the heat-conducting plate 32. Then, the heat is conducted to the reagent card through the heat-conducting plate 32, thereby achieving the purpose of heating the reagent card.

[0027] To meet the requirements, in this embodiment, the PTC constant temperature heating element 31 operates at a temperature of 42±0.5℃ after being powered on. This allows the heat to be conducted through the PTC constant temperature heating element 31 to the heat-conducting element 32, and then through the heat-conducting element 32 to heat the reagent card, thereby heating the reagent card to about 37℃, thus achieving a temperature range that meets the detection requirements.

[0028] In this embodiment, the heat-conducting sheet 32 ​​is an aluminum sheet, and the PTC constant-temperature heating element 31 is bonded and fixed to the aluminum sheet with a high-temperature resistant adhesive. Aluminum has the characteristics of high thermal conductivity and low price, which better controls the manufacturing cost of this simple heating device for test reagent cards. At the same time, the high thermal conductivity of aluminum can reduce heat loss, allowing the PTC constant-temperature heating element to heat the reagent card to the preset temperature range to meet the usage requirements. In other embodiments, heat-conducting sheets 32 made of other materials can also be used, such as copper sheets.

[0029] To facilitate power connection, a USB connector is provided at one end of the power cord 4 that extends out of the housing 1; the USB connector can be used to adapt to the power adapters of various mobile terminals, thereby improving the versatility of the simple heating device for the test reagent card and enhancing its ease of use.

[0030] The housing 1 includes a base 12 and a top cover 13, which are fixedly connected to the base 12. A groove is provided inside the base 12, and a reagent card insertion port 11 is located on the base 12. The receiving slot is formed by the groove and the lower end face of the top cover 13. By configuring the housing 1 as a single unit consisting of the base 12 and the top cover 13, it is easier to machine the groove on the base 12 to form the receiving cavity 2. This also facilitates the installation of the constant temperature heating element 3, thereby reducing manufacturing difficulty and further reducing manufacturing costs. In other embodiments, the housing 1 can also be a single piece, and the receiving cavity 2 can be machined using methods such as integral injection molding or drilling.

[0031] In this embodiment, both the base 12 and the top cover 13 are made of ABS material; in other embodiments, the base 12 and the top cover 13 may also be made of other high-temperature resistant hard materials.

[0032] To facilitate the assembly of the base 12 and the top cover 13, multiple positioning holes 14 are provided on the upper surface of the base 12, and positioning pins 15 are provided on the lower surface of the top cover 13 at corresponding positions to the positioning holes 14. The positioning pins 15 are inserted into the corresponding positioning holes 14 for fixation. When assembling the housing 1, the positioning pins 15 on the top cover 13 are aligned with the positioning holes 14 on the base 12, and then the top cover 13 is pressed onto the base 12, so that all the positioning pins 15 are inserted into the corresponding positioning holes 14 until the end face of the top cover 13 abuts against the end face of the base 12. Through the insertion and engagement of the positioning pins 15 with the positioning holes 14, not only can the top cover 13 and the base 12 be quickly aligned, but the top cover 13 and the base 12 are also connected and fixed, which can improve assembly efficiency and enhance the stability of the housing 1 structure.

[0033] In this embodiment, there are nine positioning holes 14, each located at the edge of the upper surface of the base 12. Positioning pins 15 are correspondingly positioned one-to-one with each positioning hole 14. The nine positioning pins 15 are inserted into the positioning holes 14 to ensure the upper cover 13 can be securely attached to the base 12. In other embodiments, the number of positioning holes 14 and positioning pins 15 can be any other number, as long as it ensures that the upper cover 13 can be securely attached to the base 12.

[0034] On the other hand, in other embodiments, the base 12 and the top cover 13 can also be connected and fixed in other ways; for example, by screw connection or snap-fit.

[0035] To limit the installation position of the heating element, two limiting baffles 16 are provided parallel to each other on the lower end face of the cover. The side walls of the limiting baffles 16 abut against the two sides of the heat-conducting sheet 32. When assembling the simple heating device for the test reagent card, first place the heating element into the groove on the base 12, so that the heat-conducting sheet 32 ​​faces upward; then close the upper cover 13 onto the base 12, so that each positioning pin 15 is inserted into the corresponding positioning hole 14; then move the heating element to move the heat-conducting sheet 32 ​​between the two limiting baffles 16, and then press the upper cover 13 and the base 12 together to fix them until the upper cover 13 and the base 12 are closed and fixed, and the positioning pins 15 are inserted into the corresponding positioning holes 14; at this time, the two limiting baffles 16 abut against the two sides of the heat-conducting sheet 32, and the heat-conducting sheet 32 ​​is limited and fixed by the two limiting baffles 16, so that the heating element is limited and fixed within the housing 1, thereby avoiding the problem of the heating element shifting during use.

[0036] This simple heating device for test reagent cards is suitable for heating small batches or single reagent cards. Its overall structure is relatively simple; heating is achieved solely through a PTC constant-temperature heating element 31, eliminating the need for complex temperature control circuits and reducing manufacturing and operating costs. Furthermore, its small size and lack of other auxiliary devices make it easy to carry, enhancing its portability.

[0037] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A simple heating device for test reagent cards, characterized in that: The device includes a housing with a receiving cavity inside. One end of the housing has a reagent card insertion port that is connected to the receiving cavity. A constant temperature heating component is installed inside the receiving cavity and is attached to the side wall of the receiving cavity. A power cord is installed on the constant temperature heating component, with one end of the power cord extending out of the housing for connection to an external power source.

2. The test kit simple warming device according to claim 1, characterized in that: The constant temperature heating component includes a PTC constant temperature heating element and a heat-conducting plate. The PTC constant temperature heating element is fixed at the center of the lower surface of the heat-conducting plate, and the power cord is connected to the PTC constant temperature heating element.

3. The test reagent card simple warming device according to claim 2, characterized in that: The heat-conducting sheet is an aluminum sheet, and the PTC constant temperature heating element is bonded and fixed to the aluminum sheet with a high-temperature resistant adhesive.

4. The test reagent card simple warming device according to claim 2, characterized by: The operating temperature of the PTC constant temperature heating element is 42±0.5℃.

5. The test reagent card simple warming device according to any one of claims 2-4, characterized in that: The housing includes a base and a top cover, the top cover being connected to the base, the base having a groove, the reagent card insertion port being located on the base, and the receiving cavity being formed by the groove and the lower end face of the top cover.

6. The test reagent card simple warming device according to claim 5, characterized in that: The upper surface of the base is provided with multiple positioning holes, and the lower surface of the cover is provided with positioning pins at positions corresponding to the positioning holes. The positioning pins are respectively inserted and fixed into the corresponding positioning holes.

7. The test reagent card simple warming device according to claim 6, characterized in that: There are nine positioning holes, and the nine positioning holes are respectively located at the edge of the upper surface of the base.

8. The test reagent card simple warming device according to claim 5, characterized in that: Two limiting baffles are provided parallel to each other on the lower end surface of the upper cover, and the side walls of the limiting baffles abut against the two sides of the heat-conducting sheet respectively.

9. The test reagent card simple warming device according to any one of claims 6-8, characterized in that: Both the base and the top cover are made of ABS material.

10. The test reagent card simple warming device according to claim 9, characterized in that: The power cord has a USB connector at one end extending out of the housing.

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