Current measurer

Abstract

The utility model discloses a current measurer, and belongs to the technical field of batteries. The current measurer comprises a voltage acquisition module and a data processing module, the voltage acquisition module comprises a first pin, a second pin, a resistor and a voltage detection piece, the first pin and the second pin are electrically connected with the resistor respectively, and the two ends of the voltage detection piece are electrically connected with the first pin and the second pin respectively so that the voltage detection piece can be connected with the resistor in parallel. The first pin and the second pin are electrically connected with a positive electrode and a negative electrode of a to-be-detected circuit respectively, so that the voltage detection piece collects voltage at the two ends of the resistor, and the data processing module is in communication connection with the voltage detection piece and is used for outputting current of the to-be-detected circuit according to the voltage. Thus, the voltage detection member is arranged in the voltage acquisition module, connection by an independent pin is not needed, the voltage detection member directly detects the voltage, manual current calculation is not needed, the current detection process is simplified, the detection period is short, and the measurement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and particularly relates to a current measurer. BACKGROUND

[0002] In the field of current detection, a current measurer is used to detect the current in a to-be-detected circuit. The current measurer comprises a shunt and a voltmeter. The shunt has two voltage pins and two current pins. When the current needs to be measured, the two current pins are respectively electrically connected to the positive and negative electrodes in the to-be-detected circuit, and the two voltage pins are respectively electrically connected to the two ends of the voltmeter, so that the voltmeter is connected in parallel with the shunt. In this way, the voltmeter displays the voltage value at the two ends of the shunt, and then the current passing through the shunt is manually calculated according to the voltage value. However, in this way, since manual calculation is involved, the process of detecting the current is cumbersome, and the test period is relatively long. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the application aims to provide a current measurer, which can solve the problem of cumbersome measurement process and low measurement efficiency caused by manual calculation of the current measurer in the related art.

[0004] The embodiment of the application provides a current measurer, which comprises a voltage acquisition module and a data processing module. The voltage acquisition module comprises a first pin, a second pin, a resistor and a voltage detection piece. The first pin and the second pin are respectively electrically connected to the resistor, and the two ends of the voltage detection piece are respectively electrically connected to the first pin and the second pin, so that the voltage detection piece is connected in parallel with the resistor. The first pin and the second pin are respectively used to electrically connect the positive and negative electrodes of a to-be-detected circuit, so that the voltage detection piece acquires the voltage at the two ends of the resistor. The data processing module is in communication connection with the voltage detection piece, and the data processing module is used to output the current of the to-be-detected circuit according to the voltage.

[0005] In the embodiment of the application, the voltage detection piece is arranged in the voltage acquisition module, and the two ends of the voltage detection piece are directly electrically connected to the first pin and the second pin used to electrically connect the to-be-detected circuit. Therefore, the voltage detection piece does not need a separate pin for connection, the number of pins is reduced, and this is conducive to simplifying the structure of the voltage acquisition module. The voltage detection piece directly detects the voltage of the resistor, and the voltage detection piece does not need to be connected to the to-be-detected circuit when the current is detected, which is conducive to simplifying the detection process of the current.

[0006] Moreover, the current measurer is additionally provided with a data processing module, when the current needs to be detected, the first pin and the second pin of the voltage collection module are electrically connected to the positive and negative poles of the circuit to be detected respectively, the voltage detection piece can detect the voltage value at both ends of the resistor, and the data processing module is in communication connection with the voltage detection piece, and the data processing module calculates and outputs the current according to the voltage value at both ends of the resistor. In this way, manual calculation is not required, the process of detecting the current is simplified, the detection period is shorter, and the measurement efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 is a structural schematic diagram of a current measurer disclosed by an embodiment of the present application;

[0008] Figure 2 is a structural schematic diagram of the inside of a shell disclosed by an embodiment of the present application;

[0009] Figure 3 is a communication schematic diagram of various modules of a current measurer disclosed by an embodiment of the present application;

[0010] Figure 4 is a communication schematic diagram of various modules of a current measurer disclosed by another embodiment of the present application;

[0011] Figure 5 is a structural schematic diagram of a voltage collection module disclosed by an embodiment of the present application.

[0012] BRIEF DESCRIPTION OF DRAWINGS

[0013] 100-voltage collection module, 110-first pin, 120-second pin, 130-resistor, 140-voltage detection piece,

[0014] 200-data processing module,

[0015] 300-display screen,

[0016] 400-control module,

[0017] 500-shell,

[0018] 600-temperature detection element,

[0019] 700-electric heating element,

[0020] 800-humidity detection element. DETAILED DESCRIPTION

[0021] With reference to the drawings and embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art are within the scope of protection of the present application.

[0022] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the objects before and after are in a "or" relationship.

[0023] The current measurer provided by the embodiments of the present application will be described in detail below in combination with the drawings, through specific embodiments and application scenarios.

[0024] Please refer to Figures 1 to 5 The current measurer disclosed by the embodiments of the present application includes a voltage acquisition module 100 and a data processing module 200, wherein the voltage acquisition module 100 is used to acquire voltage, and the data processing module 200 is used to convert the acquired voltage value into a current value.

[0025] Specifically, referring to Figure 1 and Figure 5 , the voltage acquisition module 100 includes a first pin 110, a second pin 120, a resistor 130, and a voltage detection piece 140, the first pin 110 and the second pin 120 are electrically connected with the resistor 130 respectively, and the two ends of the voltage detection piece 140 are electrically connected with the first pin 110 and the second pin 120 respectively, so that the voltage detection piece 140 is connected with the resistor 130 in parallel. The first pin 110 and the second pin 120 are arranged at intervals, and the first pin 110 and the second pin 120 are respectively used to electrically connect the positive and negative poles of the circuit to be measured, so that the voltage detection piece 140 acquires the voltage across the resistor 130.

[0026] Among them, the embodiments of the present application do not limit the specific form of the resistor 130, the voltage detection piece 140 can be but is not limited to a voltmeter, the first pin 110 and the second pin 120 are PIN pins, that is, the pins through which the resistor is electrically connected with the peripheral circuit, and are also the pins through which the resistor 130 is electrically connected with the voltage detection piece 140.

[0027] Optionally, the first pin 110 and the second pin 120 have a certain length, and the two can be respectively arranged at two ends of the resistor 130 in the form of welding to realize the electrical connection of the two with the resistor; the surface of the voltage detection piece 140 and the surface of the resistor 130 can be connected by bonding or the like, so that the position of the voltage detection piece 140 is fixed relative to the resistor 130, avoiding the change of the position of the voltage detection piece 140, but this connection mode does not make the voltage detection piece 140 and the resistor 130 conductive connection; the first end of the voltage detection piece 140 is electrically connected with the first pin 110 through the first electrical connection line, and the second end of the voltage detection piece 140 is electrically connected with the second pin 120 through the second electrical connection line; further optionally, the first end of the first electrical connection line and the first end of the voltage detection piece 140 can be connected by welding or the like, the second end of the first electrical connection line and the first pin 110 can be connected by welding or the like, the first end of the second electrical connection line and the second end of the voltage detection piece 140 can be connected by welding or the like, and the second end of the second electrical connection line and the second pin 120 can be connected by welding or the like.

[0028] In this way, the voltage detection piece 140 is placed in the voltage acquisition module 100, and the two ends of the voltage detection piece 140 are directly electrically connected with the first pin 110 and the second pin 120 for electrically connecting the to-be-measured circuit, so that the voltage detection piece 140 does not need a separate pin for connection, the number of pins is reduced, which is conducive to simplifying the structure of the voltage acquisition module 100 and realizing the miniaturization of the current measurer; moreover, the voltage detection piece 140 directly detects the voltage of the resistor 130, and when detecting the current, the voltage detection piece 140 does not need to be connected to the to-be-measured circuit, which is conducive to simplifying the detection process of the current.

[0029] The data processing module 200 is in communication connection with the voltage detection piece 140, and the data processing module 200 is used for processing data, mainly according to the voltage outputted by the voltage detection piece 140 to measure the current of the to-be-measured circuit. The data processing module 200 can be a data processor, which has a data processing chip, and the data processing chip can convert the voltage collected by the voltage acquisition module 100 into the current of the to-be-measured circuit.

[0030] Optionally, the data processing module 200 is a data processor. The data processor and the voltage detection element 140 can be electrically connected via a third electrical connection line to achieve a wired communication connection. Further, optionally, the voltage detection element 140 includes an output port, and the data processor has an input port. The two ends of the third electrical connection line are connected to the output port and the input port, respectively. Specifically, the first end of the third electrical connection line can be electrically connected to the output port, and the second end of the third electrical connection line can be electrically connected to the input port via soldering, plugging, or other methods. Alternatively, the data processor and the voltage detection element 140 can achieve a wireless communication connection via Bluetooth. Specifically, the voltage acquisition module 100 is equipped with a Bluetooth transmitter, and the data processor is equipped with... A Bluetooth receiver is provided. When the Bluetooth transmitter and receiver are turned on, they cooperate and pair up to communicate via radio waves, enabling the voltage data of the voltage detection element 140 to be transmitted to the data processor. Alternatively, the data processor and the voltage detection element 140 can achieve wireless communication connection via a wireless local area network. Specifically, the voltage acquisition module 100 is equipped with a first wireless network card, the data processor is equipped with a second wireless network card, and a wireless access point is provided at the location of the current measuring device. The first and second wireless network cards can communicate wirelessly with the wireless access point, thereby realizing the wireless communication connection between the data processor and the voltage acquisition module 100.

[0031] In this embodiment, the current measuring device is supplemented with a data processing module 200. When current needs to be detected, the first pin 110 and the second pin 120 of the voltage acquisition module 100 are electrically connected to the positive and negative terminals of the circuit under test, respectively. The voltage detection element 140 can detect the voltage value across the resistor 130. The data processing module 200 is communicatively connected to the voltage detection element 140, and calculates and outputs the current based on the voltage value across the resistor 130. Thus, no manual calculation is required, the current detection process is simplified, the detection cycle is shorter, and measurement efficiency is improved.

[0032] In an optional embodiment, refer to Figure 1 and Figure 3 As shown, the current measuring device also includes a display screen 300, which is communicatively connected to the data processing module 200. The display screen 300 is used to display the current obtained after processing by the data processing module 200. Optionally, the display screen 300 and the data processing module 200 can be electrically connected via an electrical connection cable to achieve a wired communication connection. Alternatively, the two can achieve a wireless communication connection via Bluetooth, wireless local area network, or other methods. For details, please refer to the communication connection method between the data processor and the voltage detection device 140 described above.

[0033] With the embodiment, the current measurer is additionally provided with the display screen 300, and the current processed by the data processing module 200 is directly displayed on the display screen 300, so that the user can directly observe the current measured by the current measurer, and the visualization of the current measurer is realized.

[0034] Of course, in other embodiments, the current measurer can not be provided with the display screen 300, and the data processing module 200 can be in communication connection with an external control device such as a host computer, and the display of the external control device is directly used to display the current measured by the current measurer.

[0035] In optional embodiments, in combination with FIGS. 3 and 4, Figure 2 and Figure 4 As shown, the current measurer further comprises a control module 400, which can be a single-chip microcomputer, a programmable logic controller, etc. The control module 400 is in communication connection with the data processing module 200, and the control module 400 is used to control the alarm according to the current processed by the data processing module 200. Optionally, the data processing module 200 is a data processor, and the control module 400 and the data processor can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, a wireless local area network, etc. For details, reference can be made to the communication connection manner of the data processor and the voltage detection piece 140 in the foregoing.

[0036] Optionally, the control module 400 judges the current processed by the data processing module 200, and if the current exceeds a preset current range, the control module 400 controls the alarm, and if the current does not exceed the preset current range, the control module 400 does not control the alarm. It should be noted that the preset current range can be a current range set by the measurer as needed.

[0037] With the embodiment, the current measurer is additionally provided with the control module 400, and the control module 400 can alarm when the detected current is abnormal, so as to online remind the measurer of the abnormal current.

[0038] Of course, in other embodiments, the current measurer can not be provided with the control module 400, and the data processing module 200 can be in communication connection with an external control device such as a host computer, and the external control device is used to control the alarm according to the current processed by the data processing module 200. Optionally, the control device and the data processor can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, a wireless local area network, etc. For details, reference can be made to the communication connection manner of the data processor and the voltage detection piece 140 in the foregoing.

[0039] In an alternative embodiment, the current measurer further comprises an alarm, the alarm being in communication connection with the control module 400, and the control module 400 is configured to control the alarm to alarm when the current collected by the voltage collection module 100 is out of the preset current range. Alternatively, the alarm and the control module 400 can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, wireless local area network and the like, and the communication connection manner of the data processor and the voltage detection piece 140 can be referred to.

[0040] In another embodiment, the control module 400 is in communication connection with the display screen 300, and the control module 400 is configured to control the display screen 300 to alarm when the current collected by the voltage collection module 100 is out of the preset current range.

[0041] Alternatively, the background color displayed by the display screen 300 changes when the current collected by the voltage collection module 100 is out of the preset current range, and further alternatively, the background color displayed by the display screen 300 is green when the current collected by the voltage collection module 100 is not out of the preset current range; the background color displayed by the display screen 300 is red when the current collected by the voltage collection module 100 is out of the preset current range. Of course, the display screen 300 can also alarm by changing the display content when the current collected by the voltage collection module 100 is out of the preset current range.

[0042] By adopting the embodiment, the current measurer directly alarms by changing the display effect of the display screen 300, without additionally adding an alarm, which is beneficial to reduce the number of components of the current measurer and realize miniaturization of the current measurer.

[0043] In a further embodiment, the current measurer further comprises a circuit breaker, the circuit breaker being arranged at the first pin 110, so that the first pin 110 is electrically connected to the positive pole of the to-be-measured circuit through the circuit breaker, or the circuit breaker is arranged at the second pin 120, so that the second pin 120 is electrically connected to the negative pole of the to-be-measured circuit through the circuit breaker, and the circuit breaker is in communication connection with the control module 400. Alternatively, the circuit breaker and the control module 400 can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, wireless local area network and the like, and the communication connection manner of the data processor and the voltage detection piece 140 can be referred to.

[0044] When the current collected by the voltage collection module 100 is out of the preset current range, the control module 400 controls the circuit breaker to be disconnected, so that the to-be-measured circuit is in an open circuit state, so as to protect the current measurer. Of course, the circuit breakers can also be arranged at the first pin 110 and the second pin 120 at the same time.

[0045] In the scheme of the application, referring to Figure 1 and Figure 2 As shown in the figure, the current measurer further comprises a shell 500, the voltage acquisition module 100, the data processing module 200 and the control module 400 are all arranged in the shell 500, and the shell 500 is provided with an opening through which the first pin 110 and the second pin 120 extend, the first pin 110 and the second pin 120 respectively penetrate through the corresponding openings to extend out of the shell 500, so as to facilitate the connection of the first pin 110 and the second pin 120 with external wires, and the display screen 300 is arranged on the outer surface of the shell 500.

[0046] Optionally, the shell 500 can be a cubic structure, a cylindrical structure, etc., and the specific shape of the shell 500 is not limited by the embodiments of the application; the material of the shell 500 can be but is not limited to plastic, and the display screen 300 can be arranged on the top of the shell 500, and the display screen 300 is attached to the top surface of the shell 500, so as to facilitate the direct observation of the data displayed on the display screen 300 by the experimenter.

[0047] By adopting the embodiment, the current measurer is additionally provided with the shell 500, the voltage acquisition module 100, the data processing module 200 and the control module 400 are surrounded and protected by the shell 500, so as to avoid the direct exposure and damage of the voltage acquisition module 100, the data processing module 200 and the control module 400, and at the same time, the voltage acquisition module 100, the data processing module 200, the control module 400 and the display screen 300 are concentrated together by the shell 500, which is conducive to the more compact structure of the current measurer.

[0048] Of course, in other embodiments, the current measurer can not be provided with the shell 500, and the voltage acquisition module 100, the data processing module 200 and the control module 400 can be arranged in a scattered manner.

[0049] In the scheme of the application, referring to Figure 2 As shown in the figure, the current measurer further comprises a temperature detection element 600, which can be but is not limited to a temperature sensor, and the temperature detection element 600 is arranged in the interior of the shell 500 to detect the temperature in the interior of the shell 500. That is, the temperature detection element 600 detects the ambient temperature of the voltage acquisition module 100, the data processing module 200 and the control module 400.

[0050] The temperature detection element 600 is in communication connection with the display screen 300, and the display screen 300 can display the temperature detected by the temperature detection element 600. Optionally, the temperature detection element 600 and the display screen 300 can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, wireless local area network, etc., and the specific communication connection manner can be referred to the communication connection manner of the data processor and the voltage detection element 140 in the foregoing.

[0051] By adopting the embodiment, the current measurer is additionally provided with the temperature detecting element 600, and the display screen 300 is used to display the detected temperature, so that the observer can know the temperature at which the current measurer is located at any time, and the current is prevented from being measured in the case that the temperature is too high or too low, which is beneficial to improve the accuracy of current measurement.

[0052] In optional embodiments, the control module 400 is in communication connection with the temperature detecting element 600, and the control module 400 is used to control the display screen 300 to alarm in the case that the temperature detected by the temperature detecting element 600 is out of the preset temperature range. Optionally, the control module 400 and the temperature detecting element 600 can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, wireless local area network and the like, and the communication connection manner of the data processor and the voltage detecting element 140 can be referred to. Figure 4

[0053] Optionally, in the case that the temperature detected by the temperature detecting element 600 is out of the preset temperature range, the background color displayed by the display screen 300 is changed, and further optionally, in the case that the temperature detected by the temperature detecting element 600 is not out of the preset temperature range, the background color displayed by the display screen 300 is green; in the case that the temperature detected by the temperature detecting element 600 is out of the preset temperature range, the background color displayed by the display screen 300 is yellow. Of course, in the case that the temperature detected by the temperature detecting element 600 is out of the preset temperature range, the display screen 300 can also alarm by changing the display content.

[0054] It should be noted that the preset temperature range can be a temperature range set by the measurer according to needs.

[0055] By adopting the embodiment, the control module 400 monitors the temperature detected by the temperature detecting element 600, and controls the display screen 300 to alarm when the temperature is abnormal, so as to remind the measurer online that the temperature is abnormal, and the current detected under this temperature condition is not accurate, which is beneficial to remind the measurer to measure the current under suitable temperature conditions, and improve the accuracy of current measurement. Moreover, the current measurer directly alarms by changing the display effect of the display screen 300, without the need to additionally add a temperature alarm, which is beneficial to reduce the number of components of the current measurer, and realize miniaturization of the current measurer.

[0056] Of course, in other embodiments, the control module 400 can not be in communication connection with the temperature detecting element 600, and the temperature detecting element 600 is only in communication connection with the display screen 300, and the display screen 300 displays the temperature value detected by the temperature detecting element 600.

[0057] In further embodiments, referring to Figure 2 and​Figure 4 As shown, the current measurer further comprises an electric heating element 700, which can be but is not limited to a heating wire, and the electric heating element 700 is arranged in the interior of the shell 500 and is in communication connection with the control module 400, and the control module 400 is configured to control the electric heating element 700 according to the detection temperature of the temperature detection element 600. Optionally, the control module 400 is configured to control the electric heating element 700 to heat when the temperature detected by the temperature detection element 600 is lower than the lower limit of the preset temperature range, and control the electric heating element 700 to stop heating when the temperature detected by the temperature detection element 600 is within the preset temperature range. Optionally, the electric heating element 700 and the control module 400 can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, wireless local area network and the like, and the communication connection manner of the data processor and the voltage detection element 140 in the foregoing can be referred to.

[0058] Specifically, when the temperature detected by the temperature detection element 600 is lower than the lower limit of the preset temperature range, it indicates that the temperature in the shell 500 is low, and at this time, the measured current will be inaccurate, so the electric heating element 700 is powered on and starts to heat, and the temperature in the shell 500 gradually rises; when the temperature detected by the temperature detection element 600 is within the preset temperature range, it indicates that the temperature condition in the shell 500 is appropriate, and at this time, the measured current is relatively accurate, and the electric heating element 700 is powered off, and the temperature in the shell 500 remains unchanged.

[0059] By using the electric heating element 700 to heat when the temperature in the shell 500 detected by the temperature detection element 600 is low, the temperature in the shell 500 is increased, which is beneficial to quickly increase the temperature in the shell 500, so that the ambient temperature of the voltage acquisition module 100, the data processing module 200 and the control module 400 quickly reaches the preset temperature range, and the current detection is timely and accurately performed.

[0060] Of course, in other embodiments, the current measurer can not be provided with the electric heating element 700, and when the temperature detected by the temperature detection element 600 is lower than the lower limit of the preset temperature range, the measurer can change the external temperature of the current measurer or perform current detection after the external temperature of the current measurer returns to the normal range.

[0061] In the scheme of the present application, reference is made to Figure 2As shown, the current measurer further comprises a humidity detection element 800, which can be but is not limited to a humidity sensor, and the humidity detection element 800 is arranged inside the housing 500 to detect the humidity inside the housing 500. That is, the humidity detection element 800 detects the ambient humidity of the voltage collection module 100, the data processing module 200 and the control module 400.

[0062] The humidity detection element 800 is in communication connection with the display screen 300, so that the display screen 300 displays the humidity detected by the humidity detection element 800. Alternatively, the humidity detection element 800 and the display screen 300 can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, wireless local area network and the like, and the communication connection manner of the data processor and the voltage detection element 140 can be referred to.

[0063] By using the embodiment, the current measurer is additionally provided with the humidity detection element 800, and the detected humidity is displayed by the display screen 300, so that the observer can know the humidity of the current measurer at any time, and the current is prevented from being measured in the case of high humidity, which is beneficial to improve the accuracy of current measurement.

[0064] In the optional embodiment, with reference to Figure 4 As shown, the control module 400 is in communication connection with the humidity detection element 800, and the control module 400 is used to control the display screen 300 to alarm in the case that the humidity detected by the humidity detection element 800 exceeds the preset humidity range. Alternatively, the control module 400 and the humidity detection element 800 can be electrically connected through an electric connection line, so as to realize wired communication connection, or the two can realize wireless communication connection through Bluetooth, wireless local area network and the like, and the communication connection manner of the data processor and the voltage detection element 140 can be referred to.

[0065] Alternatively, in the case that the humidity detected by the humidity detection element 800 exceeds the preset humidity range, the background color of the display screen 300 changes, and further alternatively, in the case that the humidity detected by the humidity detection element 800 does not exceed the preset humidity range, the background color displayed by the display screen 300 is green; in the case that the humidity detected by the humidity detection element 800 exceeds the preset humidity range, the background color displayed by the display screen 300 is yellow. Of course, in the case that the humidity detected by the humidity detection element 800 does not exceed the preset humidity range, the display screen 300 can also alarm by changing the display content.

[0066] It should be noted that the preset humidity range can be a humidity range set by the measurer according to needs.

[0067] By using the embodiment, the control module 400 monitors the humidity detected by the humidity detecting element 800, and controls the display screen 300 to alarm when the humidity is abnormal, so as to remind the measurer of the abnormal humidity in real time. The current detected under the humidity condition is not accurate, which is beneficial to remind the measurer to measure the current under the appropriate humidity condition, and improve the accuracy of the current measurement. Moreover, the current measurer directly changes the display effect of the display screen 300 to alarm, without the need of additionally adding a humidity alarm, which is beneficial to reduce the number of components of the current measurer, and realize the miniaturization of the current measurer.

[0068] Of course, in other embodiments, the control module 400 can not be in communication connection with the humidity detecting element 800, and the humidity detecting element 800 is only in communication connection with the display screen 300, and the display screen 300 displays the temperature value detected by the humidity detecting element 800.

[0069] The embodiments of the present application are described above with reference to the drawings; however, the present application is not limited to the specific embodiments described above, and the specific embodiments described above are only illustrative but not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims, which all belong to the protection of the present application.

Claims

1. A current measurer characterized by comprising: The current measurer comprises a voltage acquisition module (100) and a data processing module (200), the voltage acquisition module (100) comprises a first pin (110), a second pin (120), a resistor (130) and a voltage detection element (140), the first pin (110) and the second pin (120) are electrically connected with the resistor (130) respectively, and two ends of the voltage detection element (140) are electrically connected with the first pin (110) and the second pin (120) respectively, so that the voltage detection element (140) is connected with the resistor (130) in parallel, the first pin (110) and the second pin (120) are used for electrically connecting positive and negative poles of a circuit to be measured respectively, so that the voltage detection element (140) acquires voltage at two ends of the resistor (130), The data processing module (200) is in communication connection with the voltage detection element (140), and the data processing module (200) is used for outputting current of the circuit to be measured according to the voltage.

2. The current measurer according to claim 1, characterized by The current measurer further comprises a display screen (300), the display screen (300) is in communication connection with the data processing module (200), and the display screen (300) is used for displaying the current obtained after processing of the data processing module (200).

3. The current measurer according to claim 2, characterized by The current measurer further comprises a control module (400), the control module (400) is in communication connection with the data processing module (200), and the control module (400) is used for controlling alarm according to the current obtained after processing of the data processing module (200).

4. The current measurer according to claim 3, characterized in that, The control module (400) is in communication connection with the display screen (300), and the control module (400) is used for controlling the display screen (300) to alarm in the case that the current exceeds a preset current range.

5. The current measurer according to claim 3 or 4, characterized in that, The current measurer further comprises a shell (500), the voltage acquisition module (100), the data processing module (200) and the control module (400) are arranged in the shell (500), and the shell (500) is provided with an opening for the first pin (110) and the second pin (120) to extend out, and the display screen (300) is arranged on an outer surface of the shell (500).

6. The current measurer according to claim 5, wherein The current measurer further comprises a temperature detection element (600), the temperature detection element (600) is arranged in the shell (500) to detect temperature in the shell (500), and the temperature detection element (600) is in communication connection with the display screen (300) to enable the display screen (300) to display the temperature detected by the temperature detection element (600).

7. The current measurer according to claim 6, characterized by The control module (400) is in communication connection with the temperature detection element (600), and the control module (400) is used for controlling the display screen (300) to alarm in the case that the temperature detected by the temperature detection element (600) exceeds a preset temperature range.

8. The current measurer according to claim 6 or 7, characterized by The current measurer further comprises an electric heating element (700) arranged inside the shell (500), the electric heating element (700) being in communication connection with the control module (400), The control module (400) is configured to control the electric heating element (700) according to the detected temperature of the temperature detecting element (600).

9. The current measurer according to claim 5, wherein The current measurer further comprises a humidity detecting element (800) arranged inside the shell (500) to detect the humidity inside the shell (500), the humidity detecting element (800) being in communication connection with the display screen (300) to enable the display screen (300) to display the humidity detected by the humidity detecting element (800).

10. The current measurer according to claim 9, characterized by The control module (400) is in communication connection with the humidity detecting element (800), and the control module (400) is configured to control the display screen (300) to alarm in the case that the humidity detected by the humidity detecting element (800) is out of a preset humidity range.

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