Novel portable biological sample box

Abstract

A novel portable biological sample box comprises a biological sample box body, a solar cell panel, a storage battery, an electric heating mechanism, a cooling mechanism, a temperature control switch and straps, and further comprises a heating and heat preservation control circuit and a low-temperature control circuit. The straps are mounted on two sides of the box body; the plurality of electric heating plates are respectively mounted on the outer sides of the box body and the upper cover; a rear magnet plate is arranged at the rear side end of the box body, the electric heating mechanism comprises an electric heating plate finished product and a fixing plate A, the cooling mechanism comprises semiconductor refrigeration equipment and a fixing plate B, and the heating mechanism and the cooling mechanism are attracted together with the rear magnet plate at the rear side end of the box body through attraction of the magnet plate A and the magnet plate B; and the temperature control switch, the heating and heat preservation control circuit and the low-temperature control circuit are arranged in the element box and are electrically connected. The device can be conveniently carried and transferred in a backpack mode, convenience is brought to workers, electric energy is saved, it can be guaranteed that the temperature in the box body is constant as far as possible, and the activity of biological samples is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of biological box equipment, in particular to a novel portable biological sample box. Background Art

[0002] A biological sample box is a device used to transfer biological products or biological raw materials. For example, it can carry microorganisms in the laboratory to the outdoor site for processes such as inoculation, or bring outdoor microorganisms back to the laboratory for testing. Microorganisms generally need to adapt to the temperature for growth, and too high or too low temperature will have an adverse effect on their growth.

[0003] In the prior art, biological sample boxes are usually placed in insulation equipment (such as an insulation box with electrically controlled heating) or low-temperature equipment (such as a refrigerator box with electrically controlled semiconductor refrigeration) to prevent the microorganisms from losing their activity or even dying during the transportation process. Although the above method realizes the transfer and preservation of microorganisms in an adapted temperature environment, due to structural limitations, there are still some technical problems that need to be solved as follows. First, the insulation equipment or low-temperature equipment currently equipped with biological sample boxes needs to be carried on board or carry batteries as power sources. In this way, when leaving the vehicle for a period of time, due to the lack of power supply, the insulation equipment or low-temperature equipment works abnormally due to power failure, and the activity of biological samples cannot be guaranteed. Second, the insulation equipment or low-temperature equipment equipped with biological sample boxes are large in size, which will cause the overall structure of the equipment to be complicated, inconvenient to use, and correspondingly increase the cost of use. In summary, it is very necessary to provide a biological box with a compact structure, convenient transfer position, and no need for external power supply as much as possible, and can achieve good microbial preservation effect. Utility Model Content

[0004] In order to overcome the drawbacks of existing biological sample boxes due to technical limitations as described in the background, the utility model provides a new portable biological sample box based on a biological sample box body, which can be conveniently carried by staff in a shoulder strap manner, bringing convenience to the staff, powered by solar panels, saving power, and can provide an adjustable and suitable low-temperature or high-temperature environment in the sample box body through magnetic attraction according to specific needs, thereby ensuring the activity of biological samples as much as possible.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel portable biological sample box, comprising a biological sample box body, a solar cell panel, a storage battery, an electric heating mechanism, a cooling mechanism, a temperature control switch, and a shoulder strap, characterized in that it also has a heating and heat preservation control circuit and a low temperature control circuit; the shoulder strap is installed on both sides of the box body of the biological sample box body, a plurality of solar cells are provided, and a plurality of electric heating plates are respectively installed on the outside of the box body and the outside of the upper cover of the box body; the rear side end of the box body has an opening, a rear magnet plate is installed outside the opening, the electric heating mechanism comprises an electric heating plate finished product, a fixing plate A, the electric heating plate is installed on the front side end of the fixing plate A, a magnet plate A is installed on the front outer side end of the fixing plate A, the cooling mechanism comprises a semiconductor refrigeration device, a solid The fixed plate B has an opening in the middle, the semiconductor refrigeration device is installed in the opening, and the magnet plate B is installed at the front outer side of the fixed plate B; the electric heating mechanism and the cooling mechanism are attracted by the magnet plate A and the magnet plate B respectively and are attracted by the rear magnet plate at the rear end of the box; the temperature control switch, the heating and heat preservation control circuit, and the low-temperature control circuit are installed in the component box, and the component box is installed in the box; the two poles of the solar cell panel and the two poles of the battery are electrically connected to the power input ends of the heating and heat preservation control circuit and the low-temperature control circuit respectively, and the power output ends of the heating and heat preservation control circuit and the low-temperature control circuit are electrically connected to the power input ends of the electric heating plate and the semiconductor refrigeration device respectively.

[0007] Furthermore, the rear end polarity of the rear magnet plate is opposite to the front end polarity of the magnet plates A and B, and the outer diameters of the rear magnet plate, magnet plates A and B are consistent.

[0008] Furthermore, the signal output end of the temperature control switch is electrically connected to the signal input ends of the heating and heat preservation control circuit and the low temperature control circuit respectively.

[0009] Furthermore, the heating and insulation control circuit and the low-temperature control circuit have the same structure, and respectively include an adjustable resistor, a resistor, a transistor, a power switch and a relay connected via circuit board wiring, the positive power input terminal of the relay and the control power input terminal are connected, one end of the adjustable resistor is connected to one end of the resistor, the other end of the resistor is connected to the base of the transistor, the collector of the transistor is connected to one end of the power switch, the other end of the power switch is connected to the negative power input terminal of the relay, and the emitter of the transistor is connected to the other end of the adjustable resistor.

[0010] Compared with the prior art, the utility model has the following beneficial effects: (1) The utility model is based on the biological sample box body, and because it has a shoulder strap, it can be conveniently carried and transferred to other locations, which brings convenience to the staff. Since it is powered by solar panels, it can save power. (2) According to the temperature requirements of the biological samples, the staff can conveniently attract the electric heating mechanism and the cooling mechanism to the rear outer side of the box body, and under the joint action of the heating and heat preservation control circuit and the low temperature control circuit, the box body can be kept at a constant temperature as much as possible, thereby ensuring the activity of the biological samples as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a partial structural schematic diagram of the utility model;

[0013] Figure 3 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0014] Figure 1 , 2 As shown in Figure 3, a novel portable biological sample box comprises a biological sample box body 1, a solar cell panel G1 (a wire connected to the middle of the inner side end of the solar cell panel G1 is introduced into the box body through an opening of the box body), a storage battery G2, an electric heating mechanism, a cooling mechanism, a temperature control switch W, a shoulder strap 2, and also has a heating and heat preservation control circuit 3 and a low temperature control circuit 4; the two sides of the lower end of the flexible shoulder strap 2 are respectively fixedly mounted on the outer middle of the two sides of the upper end of the box body of the biological sample box body 1, there are four solar cell panels G1, and the inner sides of the four electric heating panels G1 are respectively glued to the front end, left end, right end of the outer side of the box body of the biological sample box body 1 and the outer side of the upper cover of the biological sample box body 1; there is a rectangular opening 101 in the middle of the rear side end of the box body, and a rectangular hollow rear magnet plate 10 is glued to the outer end of the opening. 2. The electric heating mechanism includes a finished electric heating plate RT and a fixed plate A51. The two electric heating plates RT are installed horizontally at the upper and lower parts of the middle of the front side end of the fixed plate A51 at a distance from each other. The front side end of the fixed plate A51 is glued with an annular hollow magnet plate A52 (the two electric heating plates RT are located in the hollow part). The cooling mechanism includes a finished semiconductor refrigeration device M and a fixed plate B61. The fixed plate B61 has an opening in the middle. The shell of the semiconductor refrigeration device M is sealed and installed in the opening, and the cold end of the semiconductor refrigeration device M is located at the front end of the fixed plate B61 and the hot end is located outside the rear end of the fixed plate B61. The front side end of the fixed plate B is glued with an annular hollow magnet plate B62 (the semiconductor refrigeration device M is located in the hollow part); the electric heating mechanism and the cooling mechanism are respectively connected by the magnet plate A52 and the magnet plate B61. 62 is attracted and the rear magnet 102 outside the rear side end opening 101 of the box is attracted together; the battery G2, the temperature control switch, the heating and insulation control circuit 3, and the low temperature control circuit 4 are installed on the circuit board inside the component box 6, and the component box 6 is installed in the upper middle part of the inner front end of the box and the temperature sensing surface of the temperature control switch W is located on the rear outer side of the upper end of the component box 6.

[0015] Figure 1 , 2As shown in Figure 3, the rear end polarity of the rear magnet plate 102 is opposite to the front end polarity of the magnet plate A52 and the magnet plate B62, and the outer diameters of the rear magnet plate 102 and the magnet plate A52 and the magnet plate B62 are consistent. The temperature control switch W is a finished adjustable temperature switch. The signal output end of the temperature control switch W is connected to one end of the adjustable resistor RP1 of the signal input end of the heating and heat preservation control circuit through a wire, and the other end of the adjustable resistor RP2 of the signal input end of the low temperature control circuit is connected through a wire. The heating and heat preservation control circuit includes an adjustable resistor RP1, a resistor R1, a transistor Q1, a power switch S1 and a relay K1 connected through circuit board wiring. The positive power input end of the relay K1 is connected to the control power input end, one end of the adjustable resistor RP1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the base of the transistor Q1, the collector of the transistor Q1 is connected to one end of the power switch S1, the other end of the power switch S1 is connected to the negative power input end of the relay K1, and the other end of the adjustable resistor RP1 is connected to the emitter of the transistor Q1. The low temperature control circuit structure includes an adjustable resistor RP2, a resistor R2, a transistor Q2, a power switch S2 and a relay K2 connected by circuit board wiring. The positive power input terminal of the relay K2 is connected to the control power input terminal. One end of the adjustable resistor RP2 is connected to one end of the resistor R2 and the base of the transistor Q2. The collector of the transistor Q2 is connected to one end of the power switch S2. The other end of the power switch S2 is connected to the negative power input terminal of the relay K2. The other end of the adjustable resistor RP2 is connected to the emitter of the transistor Q2. The power switches S, S1, S2 and the temperature control switch W, the handles of the adjustable resistors RP1 and RP2, and the jack of the charging socket CZ are respectively located outside the multiple openings at the front upper end of the box.

[0016] Figure 1 , 2 As shown in , 3, the two poles of the solar cell panel G1 and the two poles of the battery G2, the positive power input terminal of the power input terminal relay K1 of the heating and insulation control circuit and the emitter of the transistor Q1, and the positive power input terminal of the power input terminal relay K2 of the low-temperature control circuit and the emitter of the transistor Q2 are connected via wires respectively, and the normally closed contact terminal and the negative power input terminal of the power output terminal relay K1 of the heating and insulation control circuit, the normally open contact terminal and the negative power input terminal of the power output terminal relay K2 of the low-temperature control circuit, and the power input terminal of the electric heating plate RT and the semiconductor refrigeration equipment M are connected via wires respectively.

[0017] Figure 1 , 2As shown in Figure 3, when using the new type, open the upper cover of the biological sample box body 1, then put the microorganisms to be transferred in the box, and then close the cover. The staff can easily transfer the position by shouldering the shoulder strap 2, which brings convenience to the staff. Usually, the solar panel G1 generates electricity to charge the battery G2 under the sunlight. Since no external power supply is required, it saves electricity and brings convenience to actual use (when not in use, the equipment can be placed outdoors for charging, and it can still generate electricity when it is located outdoors during the transfer process, so under normal circumstances, the new type does not need an external power supply; in extreme cases, when the battery G1 is low on power, the charging plug of the external power charger can be inserted into the charging socket CZ to charge the battery G2). After turning on the power switch S, the power input end of the heating and heat preservation control circuit and the low temperature control circuit. When it is necessary to ensure that the box is at a constant relatively high temperature (that is, the lowest temperature is also higher than the ambient temperature), the electric heating mechanism is attracted through the magnet plate A52 and the rear opening 101 of the box, and the power switch S1 is turned on (S2 is turned off). In actual circumstances, when the temperature in the box is lower than the temperature set by the temperature control switch W and the adjustable resistor RP1 (for example, less than 40°C), the resistance value of the thermistor W is relatively large, and the voltage divided between it and the adjustable resistor RP1 is large. In this way, the 12V power supply is divided by the thermistor W and the adjustable resistor RP1, and the resistor R1 reduces the voltage and limits the current to enter the base of the transistor Q1 below 0.7V. The transistor Q1 is cut off and the collector does not output a low level to enter the negative power input terminal of the relay K1. When the relay K1 loses power, it will not attract the control power input terminal and the normally closed contact terminal to close. The 12V power supply will enter the power supply of the electric heating plate RT through the control power input terminal and the normally closed contact terminal of the relay K1. Input end, the electric heating plate RT is powered to heat the box; when the temperature in the box is higher than the temperature set by the temperature control switch W and the adjustable resistor RP1 (for example, greater than 40°C), the resistance value of the thermistor W is relatively small, and the voltage division between it and the adjustable resistor RP1 is small. In this way, the 12V power supply is divided by the thermistor W and the adjustable resistor RP1, and the resistor R1 steps down and limits the current to enter the base of the transistor Q1, which is higher than 0.7V. The transistor Q1 conducts and the collector outputs a low level to enter the negative power input end of the relay K1, and the relay K1 is powered to attract its control power input end and the normally closed contact end to open the circuit. In this way, the 12V power supply no longer enters the power input end of the electric heating plate RT through the control power input end and the normally closed contact end of the relay K1, and the electric heating plate RT loses power and no longer heats the box; through the above, the new type can conveniently set the box to a corresponding higher temperature to ensure the activity of the corresponding microorganisms. Turn off the power switch S when not in use.

[0018] Figure 1 , 2As shown in Figure 3, when it is necessary to ensure that the box is at a constant relatively low temperature (that is, the lowest temperature is lower than the ambient temperature), the cooling mechanism is attracted through the magnet plate A62 and the rear opening 101 of the box, and the power switch S2 is turned on (S1 is turned off). In actual circumstances, when the temperature in the box is higher than the temperature set by the temperature control switch W and the adjustable resistor RP1 (for example, higher than 20°C), the resistance value of the thermistor W is relatively low and the voltage divided between it and the adjustable resistor RP2 is low. In this way, the 12V power supply enters the base of the transistor Q2 higher than 0.7V through the thermistor W, the adjustable resistor RP2 voltage division, and the resistor R2 voltage reduction and current limiting. The transistor Q2 is turned on and the collector outputs a low level and enters the negative power input terminal of the relay K2. The relay K2 will be energized to attract its control power input terminal and the normally open contact terminal to close. In this way, the 12V power supply will enter the power input terminal of the semiconductor refrigeration equipment M through the control power input terminal and the normally open contact terminal of the relay K2. end, the semiconductor refrigeration device M is powered to cool the box; when the temperature in the box is lower than the temperature set by the temperature control switch W and the adjustable resistor RP2 (for example, lower than 20°C), the resistance value of the thermistor W is relatively large, and the voltage divided between it and the adjustable resistor RP2 is large. In this way, the 12V power supply is divided by the thermistor W and the adjustable resistor RP1, and the resistor R2 reduces the voltage and limits the current to enter the base of the transistor Q2 below 0.7V. The collector of the transistor Q2 is cut off and no longer outputs a low level to enter the negative power input terminal of the relay K2. When the relay K2 loses power, it no longer attracts its control power input terminal and the normally open contact terminal to open the circuit. In this way, the 12V power supply no longer enters the power input terminal of the semiconductor refrigeration device M through the control power input terminal and the normally open contact terminal of the relay K2, and the semiconductor refrigeration device M loses power and no longer heats the box. Through the above, the new type can conveniently set the box to be at a corresponding lower temperature to ensure the activity of the corresponding microorganisms.

[0019] Figure 1 , 2As shown in Figures 3 and 4, the present invention achieves the effect of saving power by supplying power through solar panels. According to the temperature requirements of biological samples, the staff can conveniently attract the electric heating mechanism and the cooling mechanism to the rear outer side of the box, and under the joint action of the heating and heat preservation control circuit and the low-temperature control circuit, the temperature inside the box can be kept constant as much as possible, thereby ensuring the activity of the biological samples as much as possible. The solar panel G1 has a voltage of 12V and a power of 5W; the battery G1 is a lithium battery of model 12V / 100Ah; the electric heating plate RT is a finished product of a PTC constant temperature stainless steel armored electric heating plate with a power of 50W; the semiconductor refrigeration equipment M is a semiconductor refrigeration equipment body with a power of 50W and a voltage of 2.5V; the transistors Q1 and Q2 are NPN transistors of model 9013; the relays K1 and K2 are DC12V; the resistance values ​​of the resistors R1 and R2 are respectively 10K and 10K; the resistance values ​​of the adjustable resistors RP1 and RP2 are respectively 470K (adjusted to 3.2K and 4K respectively); the temperature control switch W is a finished product of a 0-80℃ adjustable knob thermostat of model TS-120SR.

[0020] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel portable biological sample box, comprising a biological sample box body, a solar panel, a storage battery, an electric heating mechanism, a cooling mechanism, a temperature control switch, and a shoulder strap, characterized in that: It also has a heating and heat preservation control circuit and a low-temperature control circuit; the shoulder strap is installed on both sides of the box body of the biological sample box, there are multiple solar panels, and multiple electric heating plates are respectively installed on the outside of the box body and the outside of the upper cover of the box body; the rear side end of the box body has an opening, and a rear magnet plate is installed outside the opening; the electric heating mechanism includes a finished electric heating plate and a fixed plate A, the electric heating plate is installed on the front side end of the fixed plate A, and a magnet plate A is installed on the front outer side end of the fixed plate A; the cooling mechanism includes a semiconductor refrigeration device and a fixed plate B, and there is an opening in the middle of the fixed plate B, and the semiconductor refrigeration device is installed in the opening , a magnet plate B is installed at the front outer side end of the fixed plate B; the electric heating mechanism and the cooling mechanism are attracted together by the magnet plate A and the magnet plate B and the rear magnet plate at the rear end of the box respectively; the temperature control switch, the heating and heat preservation control circuit, and the low-temperature control circuit are installed in the component box, and the component box is installed in the box; the two poles of the solar cell panel and the two poles of the battery are electrically connected to the power input ends of the heating and heat preservation control circuit and the low-temperature control circuit respectively, and the power output ends of the heating and heat preservation control circuit and the low-temperature control circuit are electrically connected to the power input ends of the electric heating plate and the semiconductor refrigeration equipment respectively.

2. The novel portable biological sample box according to claim 1 is characterized in that: The rear end polarity of the rear magnet plate is opposite to the front end polarity of magnet plate A and magnet plate B, and the outer diameters of the rear magnet plate, magnet plate A and magnet plate B are the same.

3. The novel portable biological sample box according to claim 1 is characterized in that: The signal output end of the temperature control switch is electrically connected to the signal input ends of the heating and heat preservation control circuit and the low temperature control circuit respectively.

4. The novel portable biological sample box according to claim 1 is characterized in that: The heating and insulation control circuit and the low-temperature control circuit have the same structure, and respectively include an adjustable resistor, a resistor, a transistor, a power switch and a relay connected through circuit board wiring, the positive power input terminal of the relay and the control power input terminal are connected, one end of the adjustable resistor is connected to one end of the resistor, the other end of the resistor is connected to the base of the transistor, the collector of the transistor is connected to one end of the power switch, the other end of the power switch is connected to the negative power input terminal of the relay, and the emitter of the transistor is connected to the other end of the adjustable resistor.

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