Handheld spectrometer constant temperature device

Abstract

The utility model provides a handheld spectrograph constant temperature device which enables a spectrograph to be used without preheating in a low-temperature environment and can prolong the service life of a battery in the spectrograph. The heat preservation device comprises a heat preservation mechanism used for wrapping the handheld spectrometer, and the heat preservation mechanism is internally provided with a temperature sensing module used for sensing the internal temperature of the heat preservation mechanism; the heating module is connected with the handheld spectrograph and is used for heating the handheld spectrograph; the switch module is connected with the heating module and used for controlling the heating module to start or stop; and the constant temperature control module is connected with the temperature sensing module and the switch module and is used for controlling the switch module to start or stop according to the collected temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of spectrometers, in particular to a constant temperature device for a handheld spectrometer. Background Art

[0002] The normal operating ambient temperature of a general handheld spectrometer is between 0 and 40 °C. Although the handheld spectrometer can be used normally in winter, in a low-temperature environment, the instrument needs to be preheated before it can be used. Otherwise, it may not work properly or cause measurement deviation. In addition, if the spectrometer is in a low-temperature environment for a long time, the battery life inside the spectrometer will be shortened and the battery is likely to be damaged. Therefore, currently, after the spectrometer is used up, the battery is often removed and kept warm to ensure the service life of the battery. However, this operation is too cumbersome and not easy to implement. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a constant temperature device for a handheld spectrometer, which can enable the spectrometer to be used without preheating in a low-temperature environment and can extend the service life of the battery inside the spectrometer.

[0004] The utility model adopts the following technical solutions. A constant temperature device for a handheld spectrometer includes a heat preservation mechanism for wrapping the handheld spectrometer, and the following are arranged inside the heat preservation mechanism:

[0005] A temperature sensing module, which is used to sense the internal temperature of the heat preservation mechanism;

[0006] A heating module, which is connected to the handheld spectrometer and is used to heat the handheld spectrometer;

[0007] A switch module, which is connected to the heating module and is used to control the start or stop of the heating module;

[0008] A constant temperature control module, which is connected to both the temperature sensing module and the switch module, and is used to control the start or stop of the switch module according to the collected temperature.

[0009] Further, it further includes: a mobile power supply, which is detachably assembled and connected to the heat preservation mechanism and is used to supply power to the constant temperature control module;

[0010] A temperature display module, which is arranged inside the heat preservation mechanism and is connected to the temperature sensing module and is used to display the real-time temperature;

[0011] Further, the temperature sensing module includes a thermistor Rt; the switch module includes a relay; the heating module includes a heating sheet H; the constant temperature control module includes resistors R1 to R3, a rheostat R P1 、R P2, comparator C1, diode VD1, triode Q1; one end of the thermistor Rt is connected to one end of the rheostat R P1 ; the sliding end of the rheostat R P1 is connected to the negative input terminal of the comparator C1; one end of the resistor R1, one end of the resistor R2, one end of the rheostat R P2 , the sliding end of the rheostat R P2 , and the positive input terminal of the comparator C1 are all connected; the other end of the rheostat R P2 is connected to one end of the resistor R3 and the output terminal of the comparator C1; the other end of the resistor R3 is connected to the base of the triode Q1; the emitter of the triode Q1 is connected to the other end of the resistor R2 and the other end of the rheostat R P1 and then grounded; the collector of the triode Q1 is connected to the positive electrode of the diode VD1 and one end of the coil J1 of the relay; the other end of the thermistor Rt is connected to the other end of the resistor R1, the negative electrode of the diode VD1, and the other end of the coil J1 of the relay and then connected to the power supply VCC; one end of the contact J1-1 of the relay is connected to one end of the heating sheet H, and the other end of the contact J1-1 of the relay and the other end of the heating sheet H are both connected to the power supply VCC;

[0012] Further, the heat preservation mechanism adopts a heat preservation box body, which includes a lower box and an upper cover that are covered and arranged. The lower box and the upper cover are rotatably connected on the same side. A heat preservation seat is installed in the lower box. The temperature sensing module, the switch module, and the constant temperature control module are all installed on the bottom surface of the heat preservation seat. The heat preservation seat is provided with a first installation groove for placing the handheld spectrometer, a second installation groove for placing the temperature display module, and a third installation groove for placing the mobile power supply;

[0013] Further, the heating module is installed in the first installation groove, the test part of the handheld spectrometer is placed in the first installation groove at the position of the heating module, a copper plate is covered on the heating module, and a heat conducting plate is covered on the copper plate;

[0014] Further, the heat preservation mechanism adopts a heat preservation soft sleeve that matches the size of the handheld spectrometer. The heat preservation soft sleeve is fitted and sleeved outside the handheld spectrometer. The temperature sensing module, the switch module, the constant temperature control module, and the heating module are all installed on the inner layer of the heat preservation soft sleeve. The temperature display module is installed on the outer wall of the heat preservation soft sleeve, and the mobile power supply is arranged outside the heat preservation soft sleeve.

[0015] The beneficial effects of the present utility model are as follows: It can sense the internal temperature of the heat preservation mechanism in real time through the temperature sensing module, and the constant temperature control module controls the start or stop of the switch module according to the temperature data, so as to control the start or stop of the heating module, enabling the handheld spectrometer to be in a constant temperature environment. Furthermore, the handheld spectrometer can be used without preheating in a low-temperature environment, which is convenient to operate and can extend the service life of the battery inside the spectrometer, having good economic value in use. Description of the Drawings

[0016] Figure 1 is the structural block diagram of the present utility model;

[0017] Figure 2 is the circuit schematic diagram of the present utility model;

[0018] Figure 3 is the structural schematic diagram of the first embodiment of the present utility model. Detailed Embodiments

[0019] As Figure 1 、 Figure 2 shown, a constant temperature device for a handheld spectrometer of the present utility model includes a heat preservation mechanism for wrapping the handheld spectrometer, and the following are provided inside the heat preservation mechanism:

[0020] A temperature sensing module for sensing the internal temperature of the heat preservation mechanism;

[0021] A heating module, connected to the handheld spectrometer, for heating the handheld spectrometer;

[0022] A switch module, connected to the heating module, for controlling the start or stop of the heating module;

[0023] A constant temperature control module, connected to both the temperature sensing module and the switch module, for controlling the start or stop of the switch module according to the collected temperature.

[0024] The constant temperature device further includes: a mobile power supply, detachably assembled and connected to the heat preservation mechanism, for supplying power to the constant temperature control module;

[0025] A temperature display module, arranged inside the heat preservation mechanism and connected to the temperature sensing module, for displaying the real-time temperature.

[0026] The temperature sensing module includes a thermistor Rt; the switch module includes a relay; the heating module includes a heating sheet H, and the heating module can also adopt heating resistance wires and other electronic devices with heating functions; the constant temperature control module includes resistors R1 to R3, a variable resistor R P1 、R P2 、a comparator C1, a diode VD1, and a triode Q1; one end of the thermistor Rt is connected to one end of the variable resistor R P1 and one end of the variable resistor R P1The sliding end is connected to the negative input terminal of the comparator C1. One end of the resistor R1, one end of the resistor R2, one end of the rheostat R P2 One end of the rheostat R P2 The sliding end, and the positive input terminal of the comparator C1 are all connected. The other end of the rheostat R P2 The other end is connected to one end of the resistor R3 and the output terminal of the comparator C1. The other end of the resistor R3 is connected to the base of the triode Q1. The emitter of the triode Q1 is connected to the other end of the resistor R2 and the other end of the rheostat R P1 The other end is grounded after being connected. The collector of the triode Q1 is connected to the positive electrode of the diode VD1 and one end of the coil J1 of the relay. The other end of the thermistor Rt is connected to the other end of the resistor R1, the negative electrode of the diode VD1, and the other end of the coil J1 of the relay and then connected to the power supply VCC. One end of the contact J1-1 of the relay is connected to one end of the heating sheet H, and the other end of the contact J1-1 of the relay and the other end of the heating sheet H are both connected to the power supply VCC; by adjusting the rheostat R P1 R P2 To set the preheating temperature, actually, the corresponding existing controller (not shown in the figure) controls and adjusts the rheostat R P1 R P2 For control and adjustment; the controller can perform remote control and adjustment on it, or can be set inside the heat preservation mechanism and is connected to the rheostat R P1 R P2 For control connection.

[0027] Embodiment 1

[0028] As Figure 3 Shown, the heat preservation mechanism adopts a heat preservation box body (not shown in the figure). The heat preservation box body includes a lower box (not shown in the figure) and an upper cover (not shown in the figure) which are covered and arranged. The lower box and the upper cover are rotatably connected on the same side. A heat preservation seat 1 is installed inside the lower box. The temperature sensing module, the switch module, and the constant temperature control module are all installed on the bottom surface of the heat preservation seat 1; on the heat preservation seat 1, there are arranged a first installation groove 2 for placing the handheld spectrometer, a second installation groove 3 for placing the temperature display module, and a third installation groove 4 for placing the mobile power supply; the heating module is installed in the first installation groove 2, the test part of the handheld spectrometer is placed in the first installation groove 2 at the position of the heating module, a copper plate (not shown in the figure) is covered on the heating module, and a heat conducting plate 5 is covered on the copper plate.

[0029] After the handheld spectrometer is used, it can be placed in the first installation groove 2. In the heat preservation box body, through the cooperation of the temperature sensing module, the switch module, the constant temperature control module, and the heating module, the handheld spectrometer can be in a constant temperature environment. When used next time, the handheld spectrometer can be directly used without preheating.

[0030] Embodiment 2

[0031] The heat preservation mechanism adopts a heat preservation soft sleeve (not shown in the figure) that matches the size of the handheld spectrometer. The heat preservation soft sleeve is fitted and sleeved outside the handheld spectrometer. The temperature sensing module, switch module, constant temperature control module, and heating module are all installed on the inner layer of the heat preservation soft sleeve, the temperature display module is installed on the outer wall of the heat preservation soft sleeve, and the mobile power supply is arranged outside the heat preservation soft sleeve; the heat preservation soft sleeve in the second embodiment is equivalent to putting a heat preservation glove outside the handheld spectrometer. The heat preservation soft sleeve can be made of leather sleeve material, which can keep the handheld spectrometer in a constant temperature environment before, during, and after use, and is convenient to carry.

[0032] The working principle of the present invention is that the handheld spectrometer is placed in the heat preservation mechanism, and the test part of the handheld spectrometer (that is, the part that needs heat preservation on the handheld spectrometer) is close to the heating module. The rheostats R P1 、R P2 can be adjusted accordingly according to the actual situation to set the preheating temperature. When the thermistor Rt detects that the temperature inside the heat preservation mechanism is lower than the set temperature, the comparator C1 outputs a high-level signal. At this time, the relay is turned on, and the heating sheet H starts to heat, that is, heats the test part of the handheld spectrometer until the temperature rises to the set temperature, and then the heating sheet H stops heating; when the thermistor Rt detects that the temperature inside the heat preservation mechanism is higher than the set temperature, the comparator C1 outputs a low-level signal. At this time, the relay is disconnected, and the heating sheet H stops heating.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A constant temperature device for a handheld spectrometer, characterized in that: It includes a heat preservation mechanism for wrapping a handheld spectrometer, and the following are arranged inside the heat preservation mechanism: A temperature sensing module for sensing the internal temperature of the heat preservation mechanism; A heating module connected to the handheld spectrometer for heating the handheld spectrometer; A switch module connected to the heating module for controlling the start or stop of the heating module; A constant temperature control module connected to both the temperature sensing module and the switch module for controlling the start or stop of the switch module according to the collected temperature.

2. The constant temperature device for a handheld spectrometer according to claim 1, characterized in that: It further includes: a mobile power source detachably assembled and connected to the heat preservation mechanism for supplying power to the constant temperature control module; A temperature display module arranged inside the heat preservation mechanism and connected to the temperature sensing module for displaying the real-time temperature.

3. The constant temperature device for a handheld spectrometer according to claim 2, wherein: The temperature sensing module includes a thermistor Rt; the switch module includes a relay; the heating module includes a heating plate H; the constant temperature control module includes resistors R1 to R3, a variable resistor R P1 , R P2 , comparator C1, diode VD1, transistor Q1; one end of the thermistor Rt and the variable resistor R P1 One end of the resistor R P1 The sliding end is connected to the negative input end of the comparator C1, one end of the resistor R1 is connected to one end of the resistor R2, and the variable resistor R P2 One end of the resistor R P2 The sliding end and the positive input end of the comparator C1 are connected, and the variable resistor R P2 The other end of the resistor R3 is connected to one end of the resistor R3 and the output end of the comparator C1, the other end of the resistor R3 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the other end of the resistor R2, the variable resistor R P1 The other ends of the transistors are connected to the ground, the collector of the transistor Q1 is connected to the positive electrode of the diode VD1 and one end of the coil J1 of the relay, the other end of the thermistor Rt is connected to the other end of the resistor R1, the negative electrode of the diode VD1, and the other end of the coil J1 of the relay and then connected to the power supply VCC, one end of the contact J1-1 of the relay is connected to one end of the heating plate H, and the other end of the contact J1-1 of the relay and the other end of the heating plate H are connected to the power supply VCC.

4. The constant temperature device of a handheld spectrometer according to claim 3, characterized in that: The heat preservation mechanism adopts a heat preservation box body, which includes a lower box and an upper cover arranged in a covering manner. The lower box is rotatably connected to the same side of the upper cover. A heat preservation seat is installed inside the lower box, and the temperature sensing module, the switch module, and the constant temperature control module are all installed on the bottom surface of the heat preservation seat; on the heat preservation seat, there are arranged a first installation groove for placing the handheld spectrometer, a second installation groove for placing the temperature display module, and a third installation groove for placing the mobile power source.

5. The constant temperature device for a handheld spectrometer according to claim 4, characterized in that: The heating module is installed in the first installation groove, the test part of the handheld spectrometer is placed in the first installation groove at the position of the heating module, a copper plate is covered on the heating module, and a heat conducting plate is covered on the copper plate.

6. The constant temperature device for a handheld spectrometer according to claim 3, characterized in that: The heat preservation mechanism adopts a heat preservation soft sleeve matching the size of the handheld spectrometer. The heat preservation soft sleeve is fitted and sleeved outside the handheld spectrometer. The temperature sensing module, the switch module, the constant temperature control module, and the heating module are all installed on the inner layer of the heat preservation soft sleeve. The temperature display module is installed on the outer wall of the heat preservation soft sleeve, and the mobile power source is arranged outside the heat preservation soft sleeve.

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