Portable power supply integrated with temperature and humidity acquisition function

Abstract

The utility model relates to a portable power supply integrated with a temperature and humidity acquisition function. The portable power supply comprises a main control chip U1, a conversion chip U4, a temperature measurement module and a humidity measurement module, the conversion chip U4 is electrically connected with the main control chip U1; the temperature measurement module comprises a temperature acquisition unit and a first signal processing unit, the temperature acquisition unit comprises a resistor R12 and a thermistor RT1, the resistor R12 is electrically connected with the thermistor RT1, one end of the first signal processing unit is electrically connected with the resistor R12 and the thermistor RT1, and the other end of the first signal processing unit is electrically connected with the conversion chip U4; the humidity measurement module comprises a humidity acquisition unit and a second signal processing unit, the humidity acquisition unit comprises a capacitive sensor U6, the capacitive sensor U6 is electrically connected with one end of the second signal processing unit, and the other end of the second signal processing unit is electrically connected with the conversion chip U4. The environment temperature and humidity can be collected in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to portable power supply technical field especially, it is a kind of portable power supply integrated with temperature and humidity function. BACKGROUND

[0002] Portable power supply is a kind of portable, can provide power support for various electronic equipment.

[0003] In the related art, the portable power supply of present stage usually does not have the function of collecting ambient temperature and ambient humidity, and the ambient temperature is too high or too low, which will have different effects on the charging efficiency of portable power supply, and the ambient humidity is too high, which will cause the internal circuit board of portable power supply to be damp, thereby affecting the charging efficiency. INVENTION CONTENTS

[0004] The utility model discloses a kind of portable power supply integrated with temperature and humidity function, can collect ambient temperature and humidity in time, guarantee the charging efficiency of portable power supply is in a suitable power, to prolong service life.

[0005] The utility model discloses a kind of portable power supply integrated with temperature and humidity function, can collect ambient temperature and humidity in time, guarantee the charging efficiency of portable power supply is in a suitable power, to prolong service life.

[0006] The first aspect of the application provides a kind of portable power supply integrated with temperature and humidity function, including main control chip U1;Conversion chip U4, with the main control chip U1 Electric connection;Temperature measurement module, including temperature acquisition unit and first signal processing unit, the temperature acquisition unit includes resistance R12 and thermistor RT1, the resistance R12 with the thermistor RT1 Electric connection, one end of the first signal processing unit is respectively with the resistance R12 and the thermistor RT1 Electric connection, the other end of the first signal processing unit with the conversion chip U4 Electric connection;And humidity measurement module, including humidity acquisition unit and second signal processing unit, the humidity acquisition unit includes capacitive sensor U6, the capacitive sensor U6 with one end of the second signal processing unit Electric connection, the other end of the second signal processing unit with the conversion chip U4 Electric connection.

[0007] The temperature acquisition unit further includes capacitor C22, the first end of the capacitor C22 with the resistance R12 Electric connection, the second end of the capacitor C22 with the thermistor RT1 Electric connection.

[0008] The first signal processing unit comprises a resistor R19, an operational amplifier U3A and a capacitor C21, a first end of the resistor R19 is electrically connected with the resistor R12 and the thermistor RT1 respectively, a second end of the resistor R19 is electrically connected with the operational amplifier U3A, a first end of the capacitor C21 is electrically connected with the operational amplifier U3A, and a second end of the capacitor C21 is grounded.

[0009] The first signal processing unit further comprises a resistor R17 and a capacitor C23, a first end of the resistor R17 is electrically connected with the operational amplifier U3A, a second end of the resistor R17 is electrically connected with a first end of the capacitor C23, and a second end of the capacitor C23 is grounded.

[0010] The first signal processing unit further comprises a resistor R20, an operational amplifier U3B, a resistor R14, a capacitor C20, a resistor R13 and a resistor R18, a first end of the resistor R20 is electrically connected with a second end of the resistor R17, a second end of the resistor R20 is electrically connected with the operational amplifier U3B, a first end of the resistor R14 and a second end of the resistor R14 are electrically connected with the operational amplifier U3B respectively, a first end of the capacitor C20 is electrically connected with the first end of the resistor R14, a second end of the capacitor C20 is electrically connected with the second end of the resistor R14, a first end of the resistor R13 is electrically connected with the operational amplifier U3B, a second end of the resistor R13 is grounded, a first end of the resistor R18 is electrically connected with the operational amplifier U3B, and a conversion chip U4 of the resistor R18 is electrically connected.

[0011] The humidity collecting unit comprises a capacitor C28 and a capacitor C29, a first end of the capacitor C28 is electrically connected with a first end of the capacitor C29, a second end of the capacitor C28 is electrically connected with a second end of the capacitor C29, and the first end and the second end of the capacitor C29 are further electrically connected with the capacitive sensor U6 respectively.

[0012] The second signal processing unit comprises a resistor R27, a resistor R29, a resistor R31, a capacitor C32, an operational amplifier U5A, a resistor R24, a capacitor C24 and a resistor R25, a first end of the resistor R27 is electrically connected with the capacitive sensor U6, a second end of the resistor R27 is electrically connected with the operational amplifier U5A, a first end of the resistor R29 is electrically connected with the capacitive sensor U6, a second end of the resistor R29 is electrically connected with the operational amplifier U5A, a first end of the resistor R31 is electrically connected with the operational amplifier U5A, a second end of the resistor R29 is grounded, a first end of the capacitor C32 is electrically connected with the operational amplifier U5A, a second end of the capacitor C32 is grounded, a first end of the resistor R24 is electrically connected with the second end of the resistor R27, a second end of the resistor R24 is electrically connected with the operational amplifier U5A, a first end of the capacitor C24 is electrically connected with the second end of the resistor R27, a second end of the capacitor C24 is electrically connected with the operational amplifier U5A, a first end of the resistor R25 is electrically connected with the operational amplifier U5A.

[0013] The second signal processing unit further comprises a resistor R26, an operational amplifier U5B, a resistor R33, a resistor R32, a capacitor C25, a resistor R23 and a resistor R28, a first end of the resistor R26 is electrically connected with a second end of the resistor R25, a second end of the resistor R26 is electrically connected with the operational amplifier U5B, a first end of the resistor R23 is electrically connected with the second end of the resistor R25, the operational amplifier U5B of the resistor R23 is electrically connected, a first end of the capacitor C25 is electrically connected with the second end of the resistor R26, a second end of the capacitor C25 is electrically connected with the operational amplifier U5B, a first end of the resistor R33 is electrically connected with the operational amplifier U5B, a second end of the resistor R33 is grounded, the resistor R32 is electrically connected with the operational amplifier U5B, a first end of the resistor R28 is electrically connected with the operational amplifier U5B, a second end of the resistor R28 is electrically connected with the conversion chip U4.

[0014] Further comprising a display module, the display module comprises a display chip U7, a resistor R34 and a resistor R35, a first end of the resistor R34 is electrically connected with the master control chip U1, a second end of the resistor R34 is electrically connected with the display chip U7, a first end of the resistor R35 is electrically connected with the display chip U7.

[0015] The humidity measuring module further comprises a fan unit, the fan unit comprises a first interface J2 and a second interface J3, the first interface J2 is electrically connected with the second end of the resistor R35, the second interface J3 is electrically connected with the second end of the resistor R35.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The environment temperature information collected by the temperature collection unit and the environment humidity information collected by the humidity collection unit correspond to the processing through the first signal processing unit and the second signal processing unit respectively, and finally the analog-digital conversion is carried out through the conversion chip U4, the environment temperature and the environment humidity are transmitted to the main control chip U1, the main control chip U1 adjusts the charging efficiency in real time according to the environment temperature and the environment humidity, so that the charging efficiency of the portable power supply is in a suitable power, thereby prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment.

[0019] Figure 1 It is the functional module diagram of the portable power supply of integrated collection temperature humidity function in an embodiment of the utility model;

[0020] Figure 2 It is the circuit diagram of the main control chip U1 in an embodiment of the utility model;

[0021] Figure 3 It is the circuit diagram of the temperature measurement module, humidity measurement module and conversion chip U4 in an embodiment of the utility model;

[0022] Figure 4 It is the circuit diagram of the display module in an embodiment of the utility model;

[0023] Figure 5 It is the circuit diagram of the fan unit in an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in more detail below with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0025] It should be understood that, although the terms "first", "second", "third", etc. can be used in this application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0026] Unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0027] The portable power supply at the present stage usually does not have the function of collecting environmental temperature and environmental humidity, and the environmental temperature that is too high or too low will have different effects on the charging efficiency of the portable power supply, and the environmental humidity that is too high will cause the internal circuit board of the portable power supply to be damp, thereby affecting the charging efficiency.

[0028] In view of the above problems, the embodiment of the application provides a portable power supply integrated with temperature and humidity collection function, which can collect environmental temperature and humidity in time, ensure that the charging efficiency of the portable power supply is at a suitable power, thereby prolonging the service life.

[0029] The technical scheme of the embodiment of the application is described in detail below with reference to the accompanying drawings.

[0030] Referring to Figure 1 , Figure 2 and Figure 3The application discloses a portable power supply integrated with temperature and humidity acquisition functions, which comprises a main control chip U1, a conversion chip U4, a temperature measurement module 100 and a humidity measurement module 200; the conversion chip U4 is electrically connected with the main control chip U1; the temperature measurement module comprises a temperature acquisition unit and a first signal processing unit, the temperature acquisition unit comprises a resistor R12 and a thermistor RT1, the resistor R12 is electrically connected with the thermistor RT1, one end of the first signal processing unit is electrically connected with the resistor R12 and the thermistor RT1 respectively, and the other end of the first signal processing unit is electrically connected with the conversion chip U4; the humidity measurement module comprises a humidity acquisition unit and a second signal processing unit, the humidity acquisition unit comprises a capacitive sensor U6, the capacitive sensor U6 is electrically connected with one end of the second signal processing unit, and the other end of the second signal processing unit is electrically connected with the conversion chip U4.

[0031] It should be noted that the main control chip U1 receives the ambient temperature and the ambient humidity, and then adjusts the charging efficiency in real time according to the ambient temperature and the ambient humidity, so that the charging efficiency of the portable power supply is at a suitable power, thereby prolonging the service life. The model thereof can be GD32F305RCT6. The conversion chip U4 is an analog-to-digital conversion chip, which is used for converting an analog signal into a digital signal, and the model thereof can be ADS1115. Further, the thermistor RT1 is connected with a current-limiting resistor R12 in series, can generate a changing voltage along with the change of the ambient temperature, and then transmits the ambient temperature information to the main control chip U1 through the analog-to-digital conversion of the conversion chip U4 after the processing of the first signal processing unit. Still further, the capacitive sensor U6 is a humidity sensor, the main control chip U1 outputs a low level to perform a reset action on the capacitive sensor U6, then the capacitive sensor U6 outputs an electric signal changing along with the change of the ambient humidity through the 3rd and 4th pins, and transmits the ambient humidity information to the main control chip U1 through the analog-to-digital conversion of the conversion chip U4 after the processing of the second signal processing unit.

[0032] Referring to Figure 3 In an embodiment, the temperature acquisition unit further comprises a capacitor C22, a first end of the capacitor C22 is electrically connected with the resistor R12, and a second end of the capacitor C22 is electrically connected with the thermistor RT1.

[0033] It should be noted that the capacitor C22 plays a role in filtering ripples in the circuit.

[0034] Referring to Figure 3In an embodiment, the first signal processing unit comprises a resistor R19, an operational amplifier U3A and a capacitor C21, a first end of the resistor R19 is electrically connected with the resistor R12 and the thermistor RT1 respectively, a second end of the resistor R19 is electrically connected with the operational amplifier U3A, a first end of the capacitor C21 is electrically connected with the operational amplifier U3A, and a second end of the capacitor C21 is grounded. Specifically, the first signal processing unit further comprises a resistor R17 and a capacitor C23, a first end of the resistor R17 is electrically connected with the operational amplifier U3A, a second end of the resistor R17 is electrically connected with a first end of the capacitor C23, and a second end of the capacitor C23 is grounded.

[0035] It should be noted that the resistor R19, the operational amplifier U3A, the capacitor C21, the resistor R17 and the capacitor C23 work together to achieve voltage following, and the purpose is to absorb a very small current from the thermistor RT1, reduce voltage drift, and thus improve the load capacity of the thermistor RT1.

[0036] Referring to Figure 3 In an embodiment, the first signal processing unit further comprises a resistor R20, an operational amplifier U3B, a resistor R14, a capacitor C20, a resistor R13 and a resistor R18, a first end of the resistor R20 is electrically connected with a second end of the resistor R17, a second end of the resistor R20 is electrically connected with the operational amplifier U3B, a first end of the resistor R14 and a second end of the resistor R14 are electrically connected with the operational amplifier U3B respectively, a first end of the capacitor C20 is electrically connected with the first end of the resistor R14, a second end of the capacitor C20 is electrically connected with the second end of the resistor R14, a first end of the resistor R13 is electrically connected with the operational amplifier U3B, a second end of the resistor R13 is grounded, a first end of the resistor R18 is electrically connected with the operational amplifier U3B, and a conversion chip U4 of the resistor R18 is electrically connected.

[0037] It should be noted that since the voltage output by the thermistor RT1 is small, this part plays a role in signal amplification. Among them, the resistor R18 is a current limiting resistor, which can be increased or decreased according to actual conditions.

[0038] Referring to Figure 3 In an embodiment, the humidity acquisition unit comprises a capacitor C28 and a capacitor C29, a first end of the capacitor C28 is electrically connected with a first end of the capacitor C29, a second end of the capacitor C28 is electrically connected with a second end of the capacitor C29, and the first end and the second end of the capacitor C29 are further electrically connected with the capacitive sensor U6 respectively.

[0039] It should be noted that the capacitor C28 and the capacitor C29 play a role in filtering out ripples in the circuit.

[0040] Referring to Figure 3In an embodiment, the second signal processing unit comprises a resistor R27, a resistor R29, a resistor R31, a capacitor C32, an operational amplifier U5A, a resistor R24, a capacitor C24 and a resistor R25, a first end of the resistor R27 is electrically connected with the capacitive sensor U6, a second end of the resistor R27 is electrically connected with the operational amplifier U5A, a first end of the resistor R29 is electrically connected with the capacitive sensor U6, a second end of the resistor R29 is electrically connected with the operational amplifier U5A, a first end of the resistor R31 is electrically connected with the operational amplifier U5A, a second end of the resistor R29 is grounded, a first end of the capacitor C32 is electrically connected with the operational amplifier U5A, a second end of the capacitor C32 is grounded, a first end of the resistor R24 is electrically connected with the second end of the resistor R27, a second end of the resistor R24 is electrically connected with the operational amplifier U5A, a first end of the capacitor C24 is electrically connected with the second end of the resistor R27, a second end of the capacitor C24 is electrically connected with the operational amplifier U5A, a first end of the resistor R25 is electrically connected with the operational amplifier U5A.

[0041] It should be noted that this part of the circuit is a differential amplifier circuit, which not only plays a role in amplifying signals, but also plays a role in suppressing common-mode interference and improving the quality of electrical signals. At the same time, it can also convert differential signals into single-ended signals. The resistors R27, R29, R31, R24 and R25 are current-limiting resistors, and the capacitors C24 and C32 are filter capacitors.

[0042] Referring to Figure 3 In an embodiment, the second signal processing unit further comprises a resistor R26, an operational amplifier U5B, a resistor R33, a resistor R32, a capacitor C25, a resistor R23 and a resistor R28, a first end of the resistor R26 is electrically connected with a second end of the resistor R25, a second end of the resistor R26 is electrically connected with the operational amplifier U5B, a first end of the resistor R23 is electrically connected with the second end of the resistor R25, the operational amplifier U5B is electrically connected with the resistor R23, a first end of the capacitor C25 is electrically connected with the second end of the resistor R26, a second end of the capacitor C25 is electrically connected with the operational amplifier U5B, a first end of the resistor R33 is electrically connected with the operational amplifier U5B, a second end of the resistor R33 is grounded, the resistor R32 is electrically connected with the operational amplifier U5B, a first end of the resistor R28 is electrically connected with the operational amplifier U5B, a second end of the resistor R28 is electrically connected with the conversion chip U4.

[0043] It should be noted that this part of the circuit is a low-pass filter circuit, which plays a role in filtering out high-frequency noise and interference. Among them, the resistors R26, R33, R32, R23 and R28 play a current-limiting role, and the capacitor C25 plays a filtering role.

[0044] Referring to Figure 4In an embodiment, the portable power supply integrated with the temperature and humidity acquisition function further comprises a display module, the display module comprising a display chip U7, a resistor R34 and a resistor R35, a first end of the resistor R34 being electrically connected with the main control chip U1, a second end of the resistor R34 being electrically connected with the display chip U7, and a first end of the resistor R35 being electrically connected with the display chip U7.

[0045] It should be noted that the display module is a display screen of the portable power supply, and the display screen is built-in with the display chip U7. The resistor R34 and the resistor R35 are current limiting resistors.

[0046] Referring to Figure 5 In an embodiment, the humidity measurement module further comprises a fan unit, the fan unit comprising a first interface J2 and a second interface J3, the first interface J2 being electrically connected with the second end of the resistor R35, and the second interface J3 being electrically connected with the second end of the resistor R35.

[0047] It should be noted that the first interface J2 and the second interface J3 are both used for connecting the fan, and the main control chip U1 opens the fan to dry the circuit board in the power supply according to the environmental humidity data, so as to prevent water droplets from appearing.

[0048] The circuit principle of the present application is described as follows:

[0049] The 5V direct current passes through the magnetic bead FB2, the conduction resistor R12 and the thermistor RT1. Due to the change of the environmental temperature, the voltage between the resistor R12 and the thermistor RT1 changes. The changed voltage passes through the voltage following action of the operational amplifier U3A and then is amplified by the operational amplifier U3B. The analog signal is converted into a digital signal by the conversion chip U4, so as to transmit the environmental temperature data to the main control chip U1.

[0050] The 5V direct current passes through the magnetic bead FB4 and the conduction capacitor sensor U6. The main control chip U1 outputs a low level to perform a reset action on the capacitor sensor U6. Then, the capacitor sensor U6 outputs an electric signal which changes with the environmental humidity. Due to the weak electric signal, the signal is transmitted to the differential amplification circuit, and then the differential signal is converted into a single-ended signal to the low-pass filter circuit. The low-pass filter circuit filters out the high-frequency noise and interference. After the signal is processed, the analog signal is converted into a digital signal by the conversion chip U4, so as to transmit the environmental humidity data to the main control chip U1.

[0051] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0052] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A portable power supply with integrated temperature and humidity acquisition function, characterized in that, include: Main control chip U1; The conversion chip U4 is electrically connected to the main control chip U1; A temperature measurement module includes a temperature acquisition unit and a first signal processing unit. The temperature acquisition unit includes a resistor R12 and a thermistor RT1, with the resistor R12 electrically connected to the thermistor RT1. One end of the first signal processing unit is electrically connected to both the resistor R12 and the thermistor RT1, and the other end of the first signal processing unit is electrically connected to the conversion chip U4. The humidity measurement module includes a humidity acquisition unit and a second signal processing unit. The humidity acquisition unit includes a capacitive sensor U6, which is electrically connected to one end of the second signal processing unit, and the other end of the second signal processing unit is electrically connected to the conversion chip U4.

2. The portable power supply with integrated temperature and humidity acquisition function according to claim 1, characterized in that, The temperature acquisition unit also includes a capacitor C22, the first end of which is electrically connected to the resistor R12, and the second end of which is electrically connected to the thermistor RT1.

3. The portable power supply with integrated temperature and humidity acquisition function according to claim 1 or 2, characterized in that, The first signal processing unit includes a resistor R19, an operational amplifier U3A, and a capacitor C21. The first end of the resistor R19 is electrically connected to the resistor R12 and the thermistor RT1, respectively. The second end of the resistor R19 is electrically connected to the operational amplifier U3A. The first end of the capacitor C21 is electrically connected to the operational amplifier U3A, and the second end of the capacitor C21 is grounded.

4. The portable power supply with integrated temperature and humidity acquisition function according to claim 3, characterized in that, The first signal processing unit further includes a resistor R17 and a capacitor C23. The first end of the resistor R17 is electrically connected to the operational amplifier U3A, the second end of the resistor R17 is electrically connected to the first end of the capacitor C23, and the second end of the capacitor C23 is grounded.

5. The portable power supply with integrated temperature and humidity acquisition function according to claim 1 or 4, characterized in that, The first signal processing unit further includes resistor R20, operational amplifier U3B, resistor R14, capacitor C20, resistor R13, and resistor R18. The first end of resistor R20 is electrically connected to the second end of resistor R17, and the second end of resistor R20 is electrically connected to operational amplifier U3B. The first end and the second end of resistor R14 are respectively electrically connected to operational amplifier U3B. The first end of capacitor C20 is electrically connected to the first end of resistor R14, and the second end of capacitor C20 is electrically connected to the second end of resistor R14. The first end of resistor R13 is electrically connected to operational amplifier U3B, and the second end of resistor R13 is grounded. The first end of resistor R18 is electrically connected to operational amplifier U3B, and the conversion chip U4 of resistor R18 is electrically connected.

6. The portable power supply with integrated temperature and humidity acquisition function according to claim 5, characterized in that, The humidity acquisition unit includes capacitor C28 and capacitor C29. The first end of capacitor C28 is electrically connected to the first end of capacitor C29, and the second end of capacitor C28 is electrically connected to the second end of capacitor C29. The first end and the second end of capacitor C29 are also electrically connected to the capacitive sensor U6.

7. The portable power supply with integrated temperature and humidity acquisition function according to claim 1, characterized in that, The second signal processing unit includes resistors R27, R29, R31, capacitor C32, operational amplifier U5A, resistor R24, capacitor C24, and resistor R25. The first terminal of resistor R27 is electrically connected to the capacitive sensor U6, and the second terminal of resistor R27 is electrically connected to the operational amplifier U5A. The first terminal of resistor R29 is electrically connected to the capacitive sensor U6, and the second terminal of resistor R29 is electrically connected to the operational amplifier U5A. The first terminal of resistor R31 is electrically connected to the operational amplifier U5A. Electrical connections are made as follows: the second terminal of resistor R29 is grounded; the first terminal of capacitor C32 is electrically connected to operational amplifier U5A; the second terminal of capacitor C32 is grounded; the first terminal of resistor R24 ​​is electrically connected to the second terminal of resistor R27; the second terminal of resistor R24 ​​is electrically connected to operational amplifier U5A; the first terminal of capacitor C24 is electrically connected to the second terminal of resistor R27; the second terminal of capacitor C24 is electrically connected to operational amplifier U5A; and the first terminal of resistor R25 is electrically connected to operational amplifier U5A.

8. The portable power supply with integrated temperature and humidity acquisition function according to claim 7, characterized in that, The second signal processing unit further includes resistor R26, operational amplifier U5B, resistor R33, resistor R32, capacitor C25, resistor R23, and resistor R28. The first end of resistor R26 is electrically connected to the second end of resistor R25, and the second end of resistor R26 is electrically connected to operational amplifier U5B. The first end of resistor R23 is electrically connected to the second end of resistor R25, and the operational amplifier U5B is electrically connected to resistor R23. The first end of capacitor C25 is connected to the second end of resistor R26, and the second end of capacitor C25 is electrically connected to operational amplifier U5B. The first end of resistor R33 is electrically connected to operational amplifier U5B, and the second end of resistor R33 is grounded. Resistor R32 is electrically connected to operational amplifier U5B. The first end of resistor R28 is electrically connected to operational amplifier U5B, and the second end of resistor R28 is electrically connected to the conversion chip U4.

9. The portable power supply with integrated temperature and humidity acquisition function according to claim 1, characterized in that, It also includes a display module, which includes a display chip U7, a resistor R34 and a resistor R35. The first end of the resistor R34 is electrically connected to the main control chip U1, the second end of the resistor R34 is electrically connected to the display chip U7, and the first end of the resistor R35 is electrically connected to the display chip U7.

10. The portable power supply with integrated temperature and humidity acquisition function according to claim 9, characterized in that, The humidity measurement module also includes a fan unit, which includes a first interface J2 and a second interface J3. The first interface J2 is electrically connected to the second terminal of the resistor R35, and the second interface J3 is electrically connected to the second terminal of the resistor R35.

Images