CN217332609U

CN217332609U - Test pencil with storage battery insufficient voltage detects function

Info

Publication number: CN217332609U
Application number: CN202220816473.9U
Authority: CN
Inventors: 金豪士
Original assignee: Yongjia Haoshi Hardware Screwdriver Factory
Current assignee: Yongjia Haoshi Hardware Screwdriver Factory
Priority date: 2022-04-09
Filing date: 2022-04-09
Publication date: 2022-08-30
Anticipated expiration: 2032-04-09

Abstract

The utility model relates to a test pencil with a function of detecting the insufficient voltage of a battery to be detected, which comprises a test pencil rod and a shell, wherein a voltage measuring circuit is arranged in the shell, a second test connecting end is also arranged on the shell, the test pencil rod and the second test connecting end are both connected in the voltage measuring circuit and are respectively connected with the positive electrode and the negative electrode of the battery to be detected for forming a detection loop with the voltage measuring circuit; the voltage measuring circuit is connected with a display screen for displaying a voltage value to be measured, the detection loop is also provided with a power load, and the power load is used for consuming the energy of the battery jar to be measured after the detection loop is formed so as to enable the voltage value to be measured to be rapidly reduced. The utility model provides a test pencil with storage battery insufficient voltage that awaits measuring detects function when the storage battery that awaits measuring breaks down and leads to the internal resistance increase, can be detected out by this test pencil.

Description

Test pencil with storage battery insufficient voltage detects function

Technical Field

The utility model relates to a test pencil, concretely relates to test pencil with storage battery insufficient voltage that awaits measuring detects function.

Background

The test pencil is the instrument that electrician commonly used, can be used for the condition of detection circuitry medium voltage, and the test pencil is provided with control chip including survey electric pencil pole, casing and holder in the casing, surveys electric pencil pole and holder respectively with control chip intercommunication, survey the electric pencil pole be used for with wait to detect the point contact, the holder is used for the centre gripping on the storage battery that awaits measuring, and insufficient voltage is commonly known to voltage, contains power and uses two aspects with electrical apparatus.

At present, the electric shortage condition can appear in the storage battery that awaits measuring of car, damages and leads to the internal resistance grow when appearing the storage battery that awaits measuring, if adopt the test pencil to detect this moment, because the voltage in the storage battery that awaits measuring is normal, will not detect out the trouble.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a test pencil with the storage battery insufficient voltage that awaits measuring detects the function.

In order to achieve the above purpose, the utility model provides a following technical scheme: the detection device comprises a power testing pen holder and a shell, wherein a voltage measuring circuit is arranged in the shell, a second power testing connecting end is also arranged on the shell, the power testing pen holder and the second power testing connecting end are both connected in the voltage measuring circuit, and are respectively connected with the anode and the cathode of a battery to be detected and are used for forming a detection loop with the voltage measuring circuit; the voltage measuring circuit is connected with a display screen for displaying a voltage value to be measured, the detection loop is also provided with a power load, and the power load is used for consuming the energy of the battery jar to be measured after the detection loop is formed so as to enable the voltage value to be measured to be rapidly reduced.

By adopting the technical scheme, when the storage battery to be tested of the automobile needs to be tested, the second electricity testing connecting end is fixed at one pole of the storage battery to be tested, then a tester holds the shell, so that the electricity testing pen holder is contacted with the other pole of the storage battery to be tested, thereby forming a detection loop, the voltage value of the section can be observed on the display screen at the moment, when the internal resistance is increased due to the damage of the storage battery to be detected, the voltage value displayed on the display screen is normal at the moment, the power load in the detection loop consumes the energy of the storage battery to be detected, if the power shortage occurs, the voltage value can be observed to be rapidly reduced from the display screen at the moment, if the voltage value is in a normal condition, the condition of rapid voltage value reduction can not occur, and by arranging a power load in the detection loop, when the internal resistance of the battery to be tested is increased due to damage, the fault can be detected, and the success rate of troubleshooting is improved.

The utility model discloses further set up to: the device is characterized by further comprising a clamping piece for clamping the anode and the cathode of the battery to be tested, wherein the clamping piece is electrically connected with the electricity testing connecting end through a second wire.

The utility model discloses further set up to: the voltage measuring circuit and the display screen are connected to pins of the MCU.

The utility model discloses further set up to: and the detection loop is provided with an electronic switch for controlling the power load to be opened and closed.

By adopting the technical scheme, under the normal condition, the power load does not work, and when the fault that whether the internal resistance is increased due to the damage of the battery to be detected is detected, the electronic switch controls the power load to work, so that the corresponding discrimination can be carried out.

The utility model discloses further set up to: the casing be the quadrangular, the casing both sides are provided with load arc recess, electronic switch's one end sets up in load arc recess, the other end extends to and MCU intercommunication.

Through adopting above-mentioned technical scheme, to the insufficient voltage that appears because the internal resistance increases when needs, the person of detection can put thumb and forefinger respectively in load arc recess to the removal of control electricity test pen-holder, and when needing power load work, press the electronic switch that is in load arc recess by forefinger or thumb, thereby control power load's opening.

The utility model discloses further set up to: and pressure measuring arc-shaped grooves are arranged on two sides of the shell and are staggered with the positions of the load arc-shaped grooves.

Through adopting above-mentioned technical scheme, when using the test pencil to carry out voltage measurement, do not use power load promptly, can put into pressure measurement arc recess respectively with thumb and forefinger this moment, prevent to press electronic switch because of unexpected.

The utility model discloses further set up to: one end of the shell is provided with a round-table-shaped pen holder contact part, a detection through hole for the electric pen holder to pass through is formed in the pen holder contact part, a threaded part is arranged on the other side, opposite to the pen holder contact part, of the shell, and the threaded part is in threaded fit with the clamping piece.

The utility model discloses further set up to: the power load is a halogen lamp, and the power of the halogen lamp is 45W.

Drawings

FIG. 1 is a simplified overall usage of the present invention;

fig. 2 is a schematic structural view of the housing of the present invention;

FIG. 3 is an overall circuit diagram of the present invention;

fig. 4 is an overall structural block diagram of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-4, the utility model discloses a test pencil with function of testing insufficient voltage of storage battery to be tested, which comprises a test pencil holder 1 and a shell 2, wherein a voltage measuring circuit is arranged in the shell 2, a second test connecting end 3 is also arranged on the shell 2, the test pencil holder 1 and the second test connecting end 3 are both connected in the voltage measuring circuit, and the two are respectively connected with the anode and the cathode of the storage battery to be tested and are used for forming a testing loop with the voltage measuring circuit; the voltage measuring circuit is connected with a display screen 4 for displaying a voltage value to be detected, the detection loop is also provided with a power load, the power load is used for consuming the energy in the battery jar to be detected after the detection loop is formed so as to rapidly reduce the voltage value to be detected, the display screen 4 is an LCD, when the battery jar to be detected of the automobile needs to be detected, the second electricity detection connecting end 3 is fixed at one pole of the battery jar to be detected, then a detector holds the shell 2 so that the electricity detection pen holder 1 is contacted with the other pole of the battery jar to be detected, thereby forming the detection loop, the voltage value of the section can be observed on the display screen 4 at the moment, when the battery jar to be detected is damaged, the internal resistance is increased, the voltage value displayed on the display screen 4 is normal at the moment, the power load in the detection loop consumes the energy of the battery jar to be detected at the moment, if the electricity shortage condition occurs, the rapid reduction of the voltage value can be observed on the display screen 4 at the moment, if the fault is normal, the situation that the voltage value is rapidly reduced can not occur, and the fault that the internal resistance is increased due to the damage of the storage battery to be detected can be detected by arranging the power load in the detection loop, so that the success rate of troubleshooting is improved.

Still including being used for carrying out the holder 31 of centre gripping to the positive negative pole of the storage battery that awaits measuring, holder 31 survey electric connection of link 3 through the wire second and connect, still including MCU, voltage measurement circuit and display screen 4 all connect on this MCU's pin.

The detection circuit is provided with an electronic switch 5 for controlling the power load to be turned on and turned off, the power load does not work under normal conditions, and when the fault that whether the internal resistance is increased due to the damage of the battery to be detected is detected, the electronic switch 5 controls the power load to work, so that corresponding identification can be carried out.

Casing 2 be the quadrangular, 2 both sides of casing are provided with load arc recess 21, electronic switch 5's one end sets up in load arc recess 21, the other end extends to and MCU intercommunication, to the insufficient voltage that appears because the internal resistance increases when needs, the person of detecting can put thumb and forefinger respectively in load arc recess 21, thereby control the removal of survey electric pen-holder 1, and when needing power load work, press the electronic switch 5 that is in load arc recess 21 by forefinger or thumb, thereby control opening of power load.

2 both sides of casing be provided with pressure measurement arc recess 23 and load arc recess 21 position phase error, when using the test pencil to carry out voltage measurement, do not use power load promptly, can put into pressure measurement arc recess 23 respectively with thumb and forefinger this moment, prevent to press electronic switch 5 because of the accident.

One end of the shell 2 is provided with a cone-frustum-shaped penholder contact part 24, a detection through hole 241 for the electric penholder 1 to penetrate through is formed in the penholder contact part 24, a thread part 25 is arranged on the other side, opposite to the penholder contact part 24, of the shell 2, the thread part is in threaded fit with the clamping piece 31, the power load is a halogen lamp, and the power of the halogen lamp is 45W.

Claims

1. A test pencil with a storage battery power-lack detection function comprises a test pencil holder and a shell, wherein a voltage measurement circuit is arranged in the shell, a second test connection end is also arranged on the shell, the test pencil holder and the second test connection end are both connected in the voltage measurement circuit and are respectively connected with the positive electrode and the negative electrode of a storage battery to be detected and are used for forming a detection loop with the voltage measurement circuit; the voltage measurement circuit on be connected with the display screen that is used for showing the voltage value that awaits measuring, its characterized in that: the detection loop is also internally provided with a power load, and the power load is used for consuming the energy of the battery jar to be detected after the detection loop is formed so as to quickly reduce the voltage value to be detected.

2. The test pencil with the battery power-lack detection function of claim 1, characterized in that: the device is characterized by further comprising a clamping piece for clamping the anode and the cathode of the battery to be tested, wherein the clamping piece is electrically connected with the second electricity testing connecting end through a wire.

3. The test pencil with the battery power-lack detection function of claim 1, characterized in that: the voltage measuring circuit and the display screen are connected to pins of the MCU.

4. The test pencil with the function of detecting the power shortage of the storage battery according to claim 3, characterized in that: and the detection loop is provided with an electronic switch for controlling the power load to be opened and closed.

5. The test pencil with the battery power-lack detection function according to claim 4, characterized in that: the shell is a quadrangular prism, load arc-shaped grooves are formed in two sides of the shell, one end of the electronic switch is arranged in the load arc-shaped grooves, and the other end of the electronic switch extends to be communicated with the MCU.

6. The test pencil with the battery power-lack detection function according to claim 5, characterized in that: and pressure measuring arc-shaped grooves are arranged on two sides of the shell and are staggered with the load arc-shaped grooves.

7. The test pencil with the battery power-lack detection function according to claim 5, characterized in that: one end of the shell is provided with a round-table-shaped pen holder contact part, a detection through hole for the electric pen holder to pass through is formed in the pen holder contact part, a threaded part is arranged on the other side, opposite to the pen holder contact part, of the shell, and the threaded part is in threaded fit with the clamping piece.

8. The test pencil with the battery power-lack detection function of claim 1, characterized in that: the power load is a halogen lamp.