CN210982681U

CN210982681U - Portable mini digital display monitoring current and voltage tester

Info

Publication number: CN210982681U
Application number: CN201921935310.7U
Authority: CN
Inventors: 张永化
Original assignee: Shenzhen Fushi Technology Co Ltd
Current assignee: Shenzhen Fushi Technology Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-07-10
Anticipated expiration: 2029-11-11

Abstract

The utility model relates to a current and voltage detects technical field, discloses a mini digital display monitoring current voltage tester who hand-carries, including USB direct current power transmission line and tester body, the tester body includes drain pan and the upper cover of upper and lower buckle combination, and the drain pan intracavity is equipped with the PCB circuit board, and a terminal surface of PCB circuit board is equipped with output joint, the master controller, INA219 monitor and switch button, is equipped with temperature-sensing ware on the other terminal surface, can dismantle on the PCB circuit board and be connected with the support, and the up end of support is equipped with the recess, is equipped with L CD display screen in the recess, and L CD display screen exposes through the upper cover.

Description

Portable mini digital display monitoring current and voltage tester

Technical Field

The utility model relates to a current-voltage detection technical field, specific theory relates to a mini digital display monitoring current voltage tester who hand-carries.

Background

With the development of internet technology, 3C electronic products are more and more popular in people's lives, so chargers or mobile charging sources for 3C electronic products appear on the market, wherein some fake products are not available, the input current voltage of the fake chargers or mobile charging sources is not matched with the rated input current voltage of the 3C electronic products, when the fake chargers or mobile charging sources are used for charging, the electronic products are easily damaged, so a digital display monitoring current voltage tester appears on the market, but an input interface and an output interface of a traditional digital display monitoring current voltage tester are arranged in the same shell, and the input interface and the output interface have heat dissipation problems, so the current voltage tester with the structure has poor heat dissipation performance and influences the service life of the tester; on the other hand, when using traditional digital display monitoring current voltage tester to monitor, when the inside a large amount of heats of taking place of tester and unmanned monitoring, also there is the risk of damaging the electronic product. Therefore, the prior art is in need of improvement.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the to-be-solved technical problem of the utility model lies in providing a carry-on mini digital display monitoring current voltage tester, the input interface and the output interface separation of this tester set up, have improved its heat dispersion, and this tester size is little, stable performance, convenient to use.

In order to solve the technical problem, the utility model discloses a mini digital display monitoring current voltage tester who hand-carries, including USB direct current power transmission line and tester body, the tester body includes drain pan and upper cover of upper and lower buckle combination, be equipped with the PCB circuit board in the drain pan intracavity, a terminal surface of PCB circuit board is equipped with output connector, master controller, INA219 monitor and switch button, is equipped with temperature-sensing ware on the other terminal surface, the last support that detachably connects of PCB circuit board, the up end of support is equipped with the recess, be equipped with L CD display screen in the recess, L CD display screen exposes outside through the upper cover.

Furthermore, the USB direct current power transmission line is connected to one end of the PCB, and the output connector is arranged at the other end of the PCB.

Further, the output connector is a USB connector or a Type-C connector.

Further, the INA219 monitor, the temperature sensor and the L CD display screen are electrically connected with the master controller.

Further, the tester body is cuboid shape, and its length is 90 ~ 100mm, and the width is 30 ~ 40mm, and the height is 15 ~ 20 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses current voltage tester's input interface and output interface separation set up, and input interface and circuit board and output interface separation have increased the heat dissipation area, have improved radiating validity to the stability and the life of this tester have been improved.

(2) The utility model discloses be equipped with temperature-sensing ware on current voltage tester's the PCB circuit board, when the electric current was too high and arouse temperature variation, temperature-sensing ware can in time detect temperature variation information and transmit for the master controller, makes the master controller make further control reaction to effectively prevent the damage of product.

Drawings

Fig. 1 is a schematic structural view of the current-voltage tester of the present invention;

fig. 2 is a schematic view of a partial structure of the current-voltage tester of the present invention;

FIG. 3 is a schematic diagram of the structure of the current and voltage tester circuit board of the present invention;

in the attached drawing, 1, a USB direct current power transmission line, 2, a bottom shell, 3, an upper cover, 4, a PCB circuit board, 5, an output connector, 6, a main controller, 7, an INA219 monitor, 8, a switch key, 9, a temperature sensor, 10, a support, 11 and L CD display screens.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the scope of the present invention more clearly defined.

Referring to fig. 1-3, the utility model discloses a mini digital display monitoring current voltage tester who hand-carries, including USB direct current power transmission line 1 and tester body, the tester body includes drain pan 2 and upper cover 3 of upper and lower buckle combination, drain pan 2 and upper cover 3 are made by resistant dirty wear-resisting plastic material, the intracavity of drain pan 2 is equipped with PCB circuit board 4, PCB circuit board 4's up end is equipped with output joint 5, master controller 6, INA219 monitor 7 and switch button 8, be equipped with temperature-sensing ware 9 on the lower terminal surface, be equipped with the mounting hole on PCB circuit board 4, can dismantle in the mounting hole and be connected with support 10, the up end of support 10 is equipped with the recess, be equipped with L CD display screen 11 in the recess, L CD display screen 11 exposes outside through upper cover 3, wherein, INA219 monitor 7, temperature-sensing ware 9, L CD display screen 11 and master controller 6 electric connection.

In order to make input and output mutually noninterference and improve the compactedness of tester structure, the utility model discloses a USB direct current transmission line 1 is connected in the one end of PCB circuit board 4, and output connector 5 sets up the other end at PCB circuit board 4, and this structure setting makes input and output heteropleural to arrange, has improved the convenience of using simultaneously.

Specifically, the utility model discloses preferred embodiment's output connects 5 and connects for Type-C, supports two-way insertion.

Specifically, the utility model discloses preferred embodiment's tester body is the cuboid shape, and its length is 90mm, and the width is 40mm, highly is 15mm, and its is small, conveniently carries with oneself.

It should be noted that the INA219 monitor is a splitter and power monitor with an I2C or SMBUS compatible interface. The device monitors the voltage drop of the shunt and the voltage of a bus power supply, the conversion times and the filtering options can be set through programming, the voltage of 0-26V can be detected, the maximum current which can be detected is 2mA, and the device is divided into an A level and a B level; and the utility model discloses a B level model, its precision is higher and the accurate standard is stricter.

The utility model discloses during the use, insert USB direct current power transmission line 1 on charging plug or portable power source, output connector 5 passes through the data line and is connected with 3C electronic product such as cell-phone, press switch button 8 and can open this tester, INA219 monitor 7 transmits the electric current and the voltage data that detect for master controller 6, give L CD display screen 11 after the master controller 6 handles, thereby show on L CD display screen 11, the user can monitor whether normally charging through the current voltage data, when transmission current voltage is unusual and lead to PCB circuit board 4 to generate heat when too high, temperature-sensing ware 9 can transmit temperature signal for master controller 6, master controller 6 carries out the comparison with the threshold value that sets up after receiving temperature signal, if the temperature is higher than the threshold value, then master controller 6 control cut-off circuit, thereby stop charging 3C electronic product such as cell-phone, 3C electronic product has effectively been protected.

The utility model discloses current voltage tester's input interface and output interface separation set up, have increased the heat dissipation region, have improved radiating validity to improve the stability and the life of this tester, the size of this tester is little, portable, and the practicality is strong.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A portable mini digital display monitoring current and voltage tester is characterized by comprising a USB direct current power transmission line (1) and a tester body, wherein the tester body comprises a bottom shell (2) and an upper cover (3) which are combined in an up-and-down buckling mode, a PCB (printed circuit board) (4) is arranged in a cavity of the bottom shell (2), an output connector (5), a main controller (6), an INA219 monitor (7) and a switch key (8) are arranged on one end face of the PCB (4), a temperature sensor (9) is arranged on the other end face of the PCB (4), a support (10) is detachably connected onto the PCB (4), a groove is formed in the upper end face of the support (10), an L CD display screen (11) is arranged in the groove, and the L CD display screen (11) is exposed outside through the upper cover (3).

2. The portable mini digital display monitoring current and voltage tester according to claim 1, wherein: the USB direct current power transmission line (1) is connected to one end of the PCB circuit board (4), and the output connector (5) is arranged at the other end of the PCB circuit board (4).

3. The portable mini digital display monitoring current and voltage tester according to claim 1, wherein: the output connector (5) is a USB connector or a Type-C connector.

4. The portable miniature digital display monitoring current and voltage tester as claimed in claim 1, wherein the INA219 monitor (7), the temperature sensor (9), and the L CD display screen (11) are electrically connected with the main controller (6).

5. The portable mini digital display monitoring current and voltage tester according to claim 1, wherein: the tester body is the cuboid shape, and its length is 90 ~ 100mm, and the width is 30 ~ 40mm, and the height is 15 ~ 20 mm.