CN202995007U - A tester for detecting mobile power - Google Patents

Abstract

The utility model discloses a tester for detecting portable power source, include: the device comprises a voltage display, a load instrument, a first ammeter and a controller; the controller is respectively connected with the first ammeter, the voltage display and the load instrument; the controller controls the first ammeter, the voltage displayer and the load instrument to test the corresponding parameters of the mobile power supply, so that the operation steps are greatly simplified, and the detection efficiency is improved.

Description

A tester for detecting mobile power

technical field

The utility model relates to the field of mobile power supply testing, in particular to a tester for detecting mobile power supplies.

Background technique

A mobile power supply is a portable charger that integrates power supply and charging functions. It can charge mobile phones and other digital devices anytime, anywhere or standby power. Lithium batteries or dry batteries are generally used as power storage units. Mobile power is generally equipped with a variety of power adapters, which have the characteristics of large capacity, multi-purpose, small size, long life and safety and reliability. It is a mobile phone, digital camera, MP3, MP4, PDA, handheld computer or handheld Functional products for power supply or standby charging of various digital products such as game consoles. the

In the prior art for testing mobile power supplies, there is no uniform and standard testing method. Generally speaking, it is necessary to test data such as the charging current when the mobile power is activated and charged, the voltage when the mobile power is no-load, the voltage and current when the mobile power is loaded, the voltage when the mobile power is short-circuited, and the charging current when the mobile power is reactivated. , the test of these data needs to use different instruments for detection, and there are many operation steps. It needs the tester to connect the tester for multiple times to complete the test, which brings great inconvenience to the tester

Thereby prior art still needs to improve and improve.

Utility model content

In view of the shortcomings of the above-mentioned prior art, the purpose of this utility model is to provide a tester for detecting mobile power, which aims to solve the problem of cumbersome detection operation for mobile power and low detection efficiency in the prior art.

In order to achieve the above object, the utility model has taken the following technical solutions:

A tester for testing a mobile power supply, including: a voltage display for measuring the voltage of the mobile power supply when it is no-load and short-circuited, a load meter for measuring the voltage and current of the mobile power supply when it is loaded, and a load meter for measuring the voltage of the mobile power supply. A first ammeter for charging current when the mobile power supply is charging and a controller for connecting to the mobile power supply; the controller is connected to the first ammeter, voltage display and load meter respectively.

The tester for detecting the mobile power supply, wherein the controller includes an input interface for connecting the input terminal of the mobile power supply, an output interface for connecting the output terminal of the mobile power supply, a first switch, and a second switch and a third switch; the input interface is connected to the first ammeter through a first switch; the output interface includes a positive output terminal, a D- terminal, a D+ terminal and a negative output terminal; the positive output terminal is connected through a second switch Negative output terminal; the negative output terminal, D- terminal and D+ terminal are respectively connected to the voltage display; the third switch is a single-pole double-throw switch, and the fixed contact of the third switch is connected to the positive output terminal. The first movable contact of the third switch is connected to the voltage display, and the second movable contact of the third switch is connected to the load meter.

The tester for detecting mobile power supplies, wherein the voltage display includes a first display for measuring the voltage at the D+ terminal, a second display for measuring the voltage at the D- terminal, and a second display for measuring the no-load voltage Three displays; the positive pole of the first display is connected to the D+ terminal; the positive pole of the second display is connected to the D- terminal; the positive pole of the third display is connected to the first movable contact; the positive pole of the first display is connected to the first movable contact; The negative pole, the negative pole of the second display and the negative pole of the third display are connected to the negative output terminal.

The tester for detecting mobile power supplies, wherein the load meter includes a second ammeter, a fourth voltmeter and a resistor; the second movable contact of the third switch is connected to the output through the fourth voltmeter The negative output terminal of the interface; the second movable contact of the third switch is sequentially connected to the negative output terminal of the output interface through a resistor and a second ammeter.

In the tester for detecting a mobile power supply, the controller is provided with an activation button for controlling the first ammeter, a load button for controlling the load meter, and a short-circuit button for controlling the voltage display.

Compared with the prior art, the tester for detecting mobile power provided by the utility model adopts a voltage display for measuring the voltage of the mobile power when it is no-load and a short circuit, and is used for measuring the voltage and voltage when the mobile power is loaded. A load meter for current, a first ammeter for measuring the charging current when charging the mobile power supply, and a controller for connecting the mobile power supply; the controller is connected to the first ammeter, voltage display and load meter respectively; The controller controls the first ammeter, voltage display and load meter to test the corresponding parameters of the mobile power supply. It is only necessary to connect the mobile power supply to the controller to test the mobile power supply. It is not necessary for the tester to connect the test instrument multiple times to test the mobile power supply. Multiple tests greatly simplify the operation steps and improve the detection efficiency.

Description of drawings

Fig. 1 is the block diagram of the utility model for testing the tester of mobile power supply.

Fig. 2 is a schematic circuit diagram of a tester for testing mobile power supplies of the present invention.

Detailed ways

The utility model provides a tester for detecting a mobile power supply. In order to make the purpose, technical solution and effect of the utility model clearer and clearer, the utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1, Fig. 1 is a structural block diagram of a tester for testing mobile power supplies of the present invention. The tester for detecting mobile power provided by the embodiment of the utility model includes: a voltage display 110, a load meter 120, a first ammeter A1 and a controller 130; the controller 130 is respectively connected to the first ammeter A1 and the voltage display 110 and load meter 120.

Specifically, the voltage display 110 is used to measure the voltage of the mobile power supply when it is no-load and when it is short-circuited, that is, the voltage when there is no load and the voltage when it is short-circuited. The load meter 120 is used to measure the voltage and current when the mobile power supply is loaded, that is, the voltage and current when there is a load. The first ammeter A1 is used to measure the charging current when charging the mobile power supply, that is, the current when the mobile power supply is storing energy. The controller 130 is connected to the mobile power supply, and is used to control the first ammeter A1, the voltage display 110 and the load meter 120 to test the corresponding voltage or current parameters of the mobile power supply, such as controlling whether it is connected to a circuit to control detection, etc.

The tester for detecting mobile power provided by the utility model realizes controlling the detection of mobile power through the controller 130 connected between the first ammeter A1, the voltage display 110, the load meter 120 and the mobile power, greatly reducing the The detection steps of the testers improve the efficiency.

The utility model is described in detail below in conjunction with specific embodiments.

Please refer to FIG. 2 . FIG. 2 is a schematic circuit diagram of a tester for detecting a mobile power supply of the present invention. As shown in Figure 2, the controller 130 includes an input interface 131, an output interface 132, a first switch K1, a second switch K2 and a third switch K3; the input interface 131 is connected to the first switch K1 through the first Ammeter A1; the output interface 132 includes a positive output terminal V+, a D- terminal, a D+ terminal and a negative output terminal V-; the positive output terminal V+ is connected to the negative output terminal V- through the second switch K2; the negative output terminal The V-, D- and D+ terminals are respectively connected to the voltage display 110; the third switch K3 is a single-pole double-throw switch, the fixed contact a of the third switch K3 is connected to the positive output terminal V+, and the third switch K3 is connected to the positive output terminal V+. The first movable contact b of the switch K3 is connected to the voltage indicator 110 , and the second movable contact c of the third switch K3 is connected to the load meter 120 .

Please refer to Fig. 2 further, Fig. 2 also includes a charger 200, the charger 200 is used to convert 220V AC into electric energy that can be stored by the mobile power supply, so as to charge the mobile power supply. The charger 200 is a prior art, and will not be described too much here. The input interface 131 is used to connect the input end of the mobile power supply, so as to charge the mobile power supply. In this embodiment, the first switch K1 and the first ammeter A1 are connected in series between the input terminal of the mobile power supply and the charger 200, and the first ammeter A1 is controlled by closing or opening the first switch K1 to measure The charging current when the power supply is charging. Certainly, there are other implementation methods and circuit connection methods to control the first ammeter A1 to measure the charging current of the mobile power supply, all of which are within the protection scope of the present invention.

The output interface 132 is used to connect the output end of the mobile power supply, that is, the port where the mobile power supply discharges the mobile terminal. Generally speaking, the output interface 132 is a USB interface or other interface, which is selected according to the adaptability of the mobile power supply. A second switch K2 is connected in series between the positive output terminal V+ and the negative output terminal V- of the output interface 132. Since the output interface 132 is correspondingly connected to the output terminal of the mobile power supply, when the second switch K2 is closed, the mobile power supply short circuit. Because there is a protection circuit inside the mobile power supply, the voltage displayed on the voltage display 110 at this time should be about 0V. If the voltage value is much greater than 0V, such as 3V, then there is a quality problem in the mobile power supply.

Please continue to refer to FIG. 2 , further, the voltage display 110 includes a first display V1, a second display V2 and a third display V3; the anode of the first display V1 is connected to the D+ terminal, and the first display V1 The negative pole of the second display V2 is connected to the negative output terminal V- for measuring the voltage at the D+ terminal; the positive pole of the second display V2 is connected to the D- terminal, and the negative pole of the second display V2 is connected to the negative output terminal V- for Measure the voltage at the D- terminal; the positive pole of the third display V3 is connected to the first movable contact b, and the negative pole of the third display V3 is connected to the negative output terminal V- for measuring the no-load voltage.

The D+ end and D- end of the output end of the mobile power supply are used to adapt to the iPhone mobile terminal. Due to the closed design of the iPhone mobile terminal, its charging circuit is different from that of the non-iPhone mobile terminal when charging the iPhone mobile terminal. Similarly, the voltage of these two terminals is required to activate charging, while for non-iPhone mobile terminals, these two terminals are not required.

The third switch K3 is a single-pole double-throw switch. When the first fixed contact a of the third switch K3 is connected to the first movable contact b, the positive output terminal V+ is connected to the positive pole of the third display V3, as As shown in Figure 2, the circuit composed of the voltage display 110 and the mobile power supply is conducted to form a current path, and the first display V1, the second display V2 and the third display V3 respectively display the D+ voltage and D- voltage of the mobile power supply and no-load voltage.

Further, please refer to FIG. 2 , the load meter 120 includes a second ammeter A2, a fourth voltmeter V4 and a resistor R; the second movable contact c of the third switch V3 is connected to the The negative output terminal V- of the output interface 132; the second movable contact c of the third switch V3 is connected to the negative output terminal V- of the output interface 132 through the resistor R and the second ammeter A2 in sequence. That is, after the second ammeter A2 is connected in series with the resistor R, the fourth voltmeter V4 is connected in parallel between the positive output terminal V+ and the negative output terminal V−. When the first fixed contact a of the third switch K3 is connected to the second movable contact c, the path formed by the voltage indicator 110 and the mobile power supply is disconnected, the load meter 120 forms a current path with the mobile power supply, and the mobile power supply The power supply discharges the resistor R. At this time, the second ammeter A2 of the load meter 120 measures the current when the mobile power supply is loaded, and the fourth voltmeter measures the voltage when the mobile power supply is loaded.

Preferably, since the first switch K1 controls the first ammeter A1 to disconnect or connect to the circuit, the second switch K2 controls whether the voltage display 110 is short-circuited or not, and the third switch K3 controls the load meter to disconnect or connect to the circuit. The controller 130 is provided with an activation button for controlling the first ammeter A1 , a load button for controlling the load meter 120 and a short-circuit button for controlling the voltage display 110 . The tester presses the activation button and the short circuit button respectively to indicate that the first switch K1 and the second switch K2 are closed, and presses the load button to indicate that the first fixed contact a of the third switch K3 is connected to the second movable contact c.

In this embodiment, the testing steps are as follows: first, connect the input end of the mobile power supply to the input interface 131 of the controller 130 , and connect the output end to the output interface 132 of the controller 130 . Press the activation button first, then the charger will charge the mobile power supply, and at this time the first ammeter A1 will display the magnitude of the charging current. Then release the activation button, the charger stops charging the mobile power supply, the mobile power supply is activated, the first fixed contact a of the third switch K3 is connected to the first movable contact b, the three voltmeters of the voltage display 110, The first voltmeter V1, the second voltmeter V2 and the third voltmeter V3 respectively display the D+ voltage, the D- voltage and the no-load voltage of the mobile power supply. Then press the load key, the first fixed contact a of the third switch K3 is connected to the second fixed contact c, the voltage display circuit is disconnected, the mobile power supply is connected to the load meter 120, and the second ammeter A2 measures the load current of the mobile power supply, The fourth voltmeter V3 tests the load voltage of the mobile power supply. Then release the load button and press (about 1-2 seconds) the short-circuit button, the mobile power supply is short-circuited, and the voltage display 110 has no output voltage. Finally, press the activation key, and the mobile power supply will be reactivated, thereby avoiding that the mobile power supply is always in a short-circuit protection state. Continue to measure the no-load, D-, D+ voltage. The above steps are the operation steps of the utility model for measuring the mobile power supply. Through the above operations, the parameter detection of the mobile power supply can be realized only by key operation. It is not necessary to connect another circuit without measuring a parameter, which greatly simplifies the detection process and the detection of the mobile power supply. The process makes the detection process smooth, fast and accurate, realizes the integrated testing of various parameters of the mobile power supply, and improves production efficiency.

In summary, in summary, the tester for detecting mobile power provided by the utility model adopts a voltage display for measuring the voltage of the mobile power when it is no-load and short-circuited, and is used for measuring the load of the mobile power. The load meter of voltage and current, the first ammeter for measuring the charging current when charging the mobile power supply and the controller connected with the mobile power supply; the controller is respectively connected with the first ammeter, voltage display and load instrument; through the controller to control the first ammeter, voltage display and load meter to test the corresponding parameters of the mobile power supply, only need to connect the mobile power supply to the controller, the mobile power supply can be tested, without the need for testers to connect the test instrument multiple times to test the mobile power supply The power supply is tested multiple times, so that in the prior art, it is necessary to separate the four steps of charging (activation), short circuit, load and reactivation to separately test the current and voltage parameters of the mobile power supply. The tester provided by the utility model only needs to press the button The operation can be integrated and tested, which greatly simplifies the testing process, realizes the integrated testing of various parameters of the mobile power supply, and improves the production efficiency.

It can be understood that those skilled in the art can make equivalent replacements or changes according to the technical solution of the utility model and its utility model concept, and all these changes or replacements should belong to the appended claims of the utility model protected range.

Claims (5)

1. tester for detection of portable power source, it is characterized in that, comprising: be used for to measure portable power source when unloaded during with short circuit voltage be connected voltage display, when being used for measuring the portable power source band and carrying voltage and current the load instrument, be used for measuring first reometer and the controller that is connected connecting portable power source of the charging current when portable power source is charged; Described controller connects respectively described the first reometer, voltage display and load instrument.

2. the tester for detection of portable power source according to claim 1, it is characterized in that, described controller comprises be used to the input interface that connects described portable power source input end, for the output interface, the first switch, second switch and the 3rd switch that connect described portable power source output terminal; Described input interface connects described the first reometer by the first switch; Described output interface comprises positive output end, D-end, D+ end and negative output terminal; Described positive output end connects negative output terminal by second switch; Described negative output terminal, D-end are connected with D+ and are connected respectively described voltage display; Described the 3rd switch is single-pole double-throw switch (SPDT), and the fixed contact of described the 3rd switch connects positive output end, and the first armature contact of described the 3rd switch connects voltage display, and the second armature contact of described the 3rd switch connects the load instrument.

3. the tester for detection of portable power source according to claim 2, it is characterized in that the 3rd display that described voltage display comprises for the first display of measuring the D+ terminal voltage, is used for measuring the second display of D-terminal voltage and is used for measuring no-load voltage; The positive pole of described the first display connects described D+ end; The positive pole of described second display connects described D-end; The positive pole of described the 3rd display connects the first armature contact; The negative pole of the negative pole of described the first display, the negative pole of second display and the 3rd display connects described negative output terminal.

4. the tester for detection of portable power source according to claim 2, is characterized in that, described load instrument comprises the second reometer, the 4th voltage table and resistance; The second armature contact of described the 3rd switch connects the negative output terminal of described output interface by the 4th voltage table; The second armature contact of described the 3rd switch successively by resistance be connected reometer and connect the negative output terminal of described output interface.

5. the tester for detection of portable power source according to claim 1, it is characterized in that, be provided with on described controller for the activation button of controlling the first reometer, for the load button of control load instrument with for the short circuit button of controlling voltage display.

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