CN217820543U - Universal meter - Google Patents

Abstract

The application belongs to the field of electronic measuring tools, and provides a universal meter which comprises a pen shell, a control panel, a battery and a non-contact voltage probe; the pen shell comprises a pen body, a battery cover, a pen tail and a pen head, the pen body is of a hollow structure, and the control board and the battery are arranged inside the pen body; a battery taking and placing opening is formed in the side wall of the pen body and corresponds to the battery, and a battery cover covers the battery taking and placing opening; the pen tail and the pen head are respectively connected to two ends of the pen body, a meter pen interface is arranged in the pen tail, and the non-contact voltage probe is arranged in the pen head. This application is through adopting a shell structure for the appearance of universal meter is pen type structure, and the user of being convenient for uses and carries, and when pen-shape test interface connection pen-shape test, can realize universal meter measurement function, can realize the electricity function of non-contact survey through non-contact voltage probe, makes the universal meter possess universal meter measurement function mode and survey two kinds of functional mode of electricity functional mode, is favorable to improving user's use and experiences the sense.

Description

Universal meter

Technical Field

The application belongs to the technical field of electronic measuring tools, and particularly relates to a universal meter.

Background

Multimeters are also called multi-purpose meters, three-purpose meters, multi-purpose meters, etc., are indispensable measurement instruments for power electronics departments, and can measure direct current, direct voltage, alternating current, alternating voltage, resistance, audio level, etc., and some parameters of alternating current, capacitance, inductance, semiconductor, etc. According to different display modes, the multimeter is divided into a pointer multimeter and a digital multimeter according to the display modes. A black meter pen of the pointer multimeter is connected with the anode of the internal power supply, and a red meter pen is connected with the cathode of the internal power supply; a black meter pen of the digital multimeter is connected with the negative pole of the internal power supply, and a red meter pen is connected with the positive pole of the internal power supply.

No matter be pointer universal meter or digital multimeter, traditional universal meter is cuboid platelike structure generally, is not convenient for use and carry, and can not direct detection measuring object whether electrified, leads to user's use to experience the sense not good enough.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a universal meter to solve the traditional universal meter that exists among the prior art and generally be cuboid platelike structure, be not convenient for use and carry, and can not direct detection measuring object whether electrified technical problem.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the universal meter comprises a pen shell, a control board, a battery and a non-contact voltage probe; the pen shell comprises a pen body, a battery cover, a pen tail and a pen point, the pen body is of a hollow structure, and the control board and the battery are arranged inside the pen body; a battery taking and placing opening is formed in the side wall of the pen body, the battery taking and placing opening is arranged corresponding to the battery, and the battery cover covers the battery taking and placing opening; the pen tail and the pen head are respectively connected to two ends of the pen body, a meter pen interface is arranged in the pen tail, and the non-contact voltage probe is arranged in the pen head; the control board is electrically connected with the battery, the non-contact voltage probe and the meter pen interface.

Optionally, the multimeter further comprises a display screen, the display screen is installed on the side wall of the pen body and exposed out of the outer surface of the pen body, and the display screen is electrically connected with the control board.

Optionally, the multimeter further comprises a control key set, the control key set is installed on the side wall of the pen body and exposed out of the outer surface of the pen body, and the control key set is electrically connected with the control board.

Optionally, the control key set includes a power key and a function mode switching key, the power key is used to control a switch of a power supply, and the function mode switching key is used to switch a function mode, so that the multimeter is in a multimeter measurement function mode or a power measurement function mode.

Optionally, the multimeter still includes the light, the light is installed on the nib, and with the control panel electricity is connected, control button group includes the composite key, the composite key is used for triggering measurement data and saves the instruction, still is used for controlling the switch of light.

Optionally, the universal meter still includes the suggestion banks, the suggestion banks is installed on the lateral wall of a body, and expose in the surface of a body, the suggestion banks with the control panel electricity is connected, the suggestion banks is arranged in surveying the electric functional mode, whether the suggestion has voltage and measurement voltage range.

Optionally, the prompt lamp set includes a first simulated light bar, a second simulated light bar and a third simulated light bar, and the first simulated light bar, the second simulated light bar and the third simulated light bar are arranged at intervals along the length direction of the pen body;

the multimeter is in a power testing function mode, and during measurement:

when the measuring voltage is in a first gear, the first simulation optical strip emits light;

when the measuring voltage is in a second gear, the first simulation optical strip and the second simulation optical strip emit light simultaneously;

when the measuring voltage is in a third gear, the first simulation optical strip, the second simulation optical strip and the third simulation light emit light simultaneously;

the measurement voltages of the first gear, the second gear and the third gear are sequentially increased.

Optionally, the second simulated light bar and the first simulated light bar have the same light emitting color, and the third simulated light bar and the first simulated light bar have different light emitting colors.

Optionally, the multimeter further comprises a voice prompt, the voice prompt is installed on the pen body and electrically connected with the control board, and the voice prompt is used for performing voice prompt during measurement.

Optionally, the multimeter further comprises a battery compartment, the battery compartment is arranged in the pen body and is mounted on the control panel, and the battery is mounted in the battery.

The utility model provides a multimeter's beneficial effect lies in: compared with the prior art, the universal meter has the advantages that the shape of the universal meter is of a pen-type structure by adopting the pen shell structure, so that the universal meter is convenient to use and carry by a user, the measurement function of the universal meter can be realized when the pen-type interface is connected with a pen-type meter, the non-contact electricity measurement function can be realized through the non-contact voltage probe, the universal meter is enabled to have two function modes of a universal meter measurement function mode and an electricity measurement function mode, and the use experience of the user can be improved; in addition, the battery taking and placing opening is formed in the side wall of the pen body corresponding to the battery, and the battery cover covers the battery taking and placing opening, so that the battery can be conveniently replaced by opening the battery cover, and convenience is brought to a user.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of a multimeter provided in an embodiment of the present application;

FIG. 2 is a cross-sectional view of the multimeter shown in FIG. 1;

FIG. 3 is a schematic diagram of an exploded view of the multimeter shown in FIG. 1.

Wherein, in the figures, the various reference numbers:

10. a pen housing; 11. a pen body; 111. a first half shell; 112. a second half shell; 113. a battery taking and placing port; 12. a battery cover; 13. a pen tail; 14. a pen point; 20. a control panel; 30. a battery; 40. a non-contact voltage probe; 50. a meter pen interface; 60. a battery compartment; 70. a display screen; 71. a backlight plate; 72. a lens; 73. a liquid crystal sheet; 80. an illuminating lamp; 90. a control key group; 91. a power key; 92. a function mode switch key; 93. a complex bond; 100. a prompt lamp group; 101. a first simulated light bar; 102. a second simulated light bar; 103. a third simulated light bar.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2 together, a multimeter provided in accordance with an embodiment of the present application will now be described. The multimeter includes a case 10, a control board 20, a battery 30, and a non-contact voltage probe 40. The pen casing 10 includes a pen body 11, a battery cover 12, a pen tail 13 and a pen point 14, the pen body 11 is a hollow structure, and the control board 20 and the battery 30 are disposed inside the pen body 11. The side wall of the pen body 11 is provided with a battery taking and placing opening 113, the battery taking and placing opening 113 is arranged corresponding to the battery 30, and the battery cover 12 covers the battery taking and placing opening 113. The pen tail 13 and the pen head 14 are respectively connected to two ends of the pen body 11, a meter pen interface 50 is arranged in the pen tail 13, and the non-contact voltage probe 40 is arranged in the pen head 14. The control board 20 is electrically connected to the battery 30, the non-contact voltage probe 40, and the stylus interface 50.

Compared with the prior art, the universal meter has the advantages that the pen shell 10 structure is adopted, so that the universal meter is of a pen-type structure, the universal meter is convenient to use and carry by a user, the measurement function of the universal meter can be realized when the meter pen interface 50 is connected with a meter pen, the non-contact electricity measurement function can be realized through the non-contact voltage probe 40, the universal meter is enabled to have two function modes, namely a universal meter measurement function mode and an electricity measurement function mode, and the use experience of the user can be improved; in addition, the battery taking and placing opening 113 is formed in the side wall of the pen body 11 corresponding to the battery 30, and the battery cover 12 covers the battery taking and placing opening 113, so that the battery 30 can be conveniently replaced by opening the battery cover 12, and convenience is brought to a user.

It should be noted that the multimeter can measure alternating voltage, alternating current, direct voltage, resistance, capacitance and frequency, can also measure on-off, a diode and a single-meter-pen live wire, and can also be used as a test pen to perform non-contact test. In addition, still have non-contact phase sequence measurement function, need not complicated measurement mode and just can easily distinguish the phase sequence of three-phase electricity and come out, saved survey crew's working strength greatly for the universal meter is whole functional, is favorable to promoting the practicality of universal meter.

Referring to fig. 2 and 3, the pen body 11 is a pen-shaped strip. Specifically, the pen body 11 includes a first half shell 111 and a second half shell 112, the first half shell 111 and the second half shell 112 are both elongated shells, and the first half shell 111 and the second half shell 112 are assembled in a matching manner to form a hollow structure. Optionally, the first half shell 111 and the second half shell 112 are connected by screws, which is beneficial to ensuring the structural stability of the pen body 11.

In some embodiments, the outer surface of the pen body 11 is provided with anti-slip lines, and the anti-slip lines extend to the battery cover 12.

The battery taking and placing opening 113 is formed in the second half-shell 112, and one end of the battery cover 12 is connected with one end of the second half-shell 112 corresponding to the battery taking and placing opening 113 through a screw. It will be appreciated that the battery cover 12 is opened by unscrewing the screw connecting the battery cover 12 to the second half-shell 112, so that the user can replace the battery 30 through the battery access opening 113; the battery cover 12 is coupled to the second half case 112 by tightening the screws to cover the battery cover 12 on the battery access opening 113.

In some embodiments, the tip 14 is a hollow structure, the inner space of the tip 14 is communicated with the inner space of the body 11, and one end of the non-contact voltage probe 40 extends into the body 11 and is electrically connected to the control board 20.

Further, the pen tip 14 is inserted in one end of the pen body 11. Optionally, the pen head 14 is connected to the first half-shell 111 and the second half-shell 112 by screws, which is beneficial to ensure the stability of the connection between the pen head 14 and the pen body 11.

In some embodiments, the pen tail 13 is a hollow structure, the inner space of the pen tail 13 is communicated with the inner space of the pen body 11, and one end of the meter pen interface 50 extends into the pen body 11 and is electrically connected to the control board 20.

Further, the pen tail 13 is sleeved on an end of the pen body 11 far away from the pen head 14. Optionally, the tail 13 is in interference fit with an end of the pen body 11 away from the pen point 14.

The control plate 20 has an elongated plate shape and extends in the longitudinal direction of the pen body 11. In the present embodiment, the control board 20 and the second board housing are connected by screws.

In some embodiments, the multimeter further comprises a battery compartment 60, the battery compartment 60 is disposed in the pen body 11 and is mounted on a side surface of the control board 20, a compartment opening of the battery compartment 60 is disposed corresponding to the battery access opening 113, and the battery 30 is mounted in the battery compartment 60.

The number of the meter pen interfaces 50 is two, and the two meter pen interfaces 50 are arranged at intervals. When in use. One end of the positive stylus is inserted into one of the stylus interfaces 50, and one end of the negative stylus is inserted into the other stylus interface 50, so that the multimeter measurement function can be performed.

Referring to fig. 1 and 2, the multimeter further includes a display screen 70, the display screen 70 is mounted on a sidewall of the pen body 11 and exposed to an outer surface of the pen body 11, the display screen 70 is electrically connected to the control board 20, and the display screen 70 is used for displaying measurement parameters. In the electricity measuring function mode, the display screen 70 is also used for emitting backlight with different colors to prompt the measuring voltage range during measuring. Specifically, in the present embodiment, if the display screen 70 displays a green backlight, the voltage indicating the measurement object is below the predetermined range, i.e. the voltage is lower, and if the display screen 70 displays a green red light, the voltage indicating the measurement object is above the predetermined range, i.e. the voltage is higher.

Referring to fig. 2 and 3, in particular, a window is disposed on a side wall of the pen body 11, the display screen 70 includes a backlight plate 71, a lens 72 and a liquid crystal plate 73, the backlight plate 71 is disposed on the control board 20, the lens 72 is disposed corresponding to the window, and the liquid crystal plate 73 is sandwiched between the backlight plate 71 and the liquid crystal plate 73.

Referring to FIG. 2, in some embodiments, the multimeter further includes an illumination lamp 80, the illumination lamp 80 being mounted on the tip 14 and electrically connected to the control board 20, the illumination lamp 80 being used for illumination. It will be appreciated that by mounting the light 80 on the head 14, the multimeter can also be used as a flashlight to provide lighting in a dim environment.

Referring to fig. 1 and fig. 2, the multimeter further includes a control key set 90, the control key set 90 is mounted on a sidewall of the pen body 11 and exposed on an outer surface of the pen body 11, the control key set 90 is electrically connected to the control board 20, and the control key set 90 is used for controlling an execution instruction of each function. Specifically, the control key group 90 includes a power key 91, a function mode switching key 92, and a composite key 93, and the power key 91, the function mode switching key 92, and the composite key 93 are disposed at intervals along the longitudinal direction of the pen body 11. The power key 91 is used to control the switching of the power. The function mode switching key 92 is used for switching the function mode, so that the multimeter is in a multimeter measurement function mode or a power measurement function mode. The combination key 93 is used to trigger a measurement data saving instruction and also to control the on/off of the illumination lamp 80. Specifically, when the compound key 93 is pressed for a short time, a storage instruction of the measurement data is triggered, the control board 20 stores the current measurement data, and when the compound key 93 is pressed for a long time, the illumination lamp 80 is controlled to be turned on or off. Optionally, pressing the composite key 93 for a short time indicates that the duration of pressing the composite key 93 for a single time is within 1s, and pressing the composite key 93 for a long time indicates that the duration of pressing the composite key 93 is more than 2 s.

It should be noted that the multimeter of the present application defaults to the NCV functional mode when being powered on, the NCV is an abbreviation of Non contact voltage, and whether there is a voltage is determined by adopting the electromagnetic or electric field induction principle, that is, the Non-contact induction electricity measurement functional mode.

Further, the power key 91 has a switch symbol on the surface thereof, the function mode switching key 92 has an FUNC symbol on the surface thereof, and the combination key 93 has a FUNC symbol on the surface thereof

And the symbols are convenient for the user to identify.

In some embodiments of the present application, the multimeter further includes a prompt lamp set 100, the prompt lamp set 100 is installed on a side wall of the pen body 11 and exposed to an outer surface of the pen body 11, the prompt lamp set 100 is electrically connected to the control board 20, and the prompt lamp set 100 is used for prompting whether there is voltage and measuring a voltage range in the electricity testing function mode.

Specifically, the prompt light group 100 includes a first simulated light bar 101, a second simulated light bar 102, and a third simulated light bar 103, and the first simulated light bar 101, the second simulated light bar 102, and the third simulated light bar 103 are disposed at intervals along the length direction of the pen body 11. The multimeter is in the electricity testing function mode, and during measurement: when the measurement voltage is in the first gear, the first simulation light bar 101 emits light; when the measurement voltage is in the second gear, the first simulation optical strip 101 and the second simulation optical strip emit light simultaneously; when the measurement voltage is in the third gear, the first analog light bar 101, the second analog light bar 102, and the third analog light are simultaneously illuminated. The measurement voltages of the first gear, the second gear and the third gear are sequentially increased.

Specifically, the first gear indicates that the measurement object has voltage, but the voltage is low, and the measurement object can be judged to be a zero line. The third gear indicates that the test object has voltage and the voltage is higher, so that the measurement object can be judged to be a live wire. Optionally, the voltage of the first gear is 15V-38V; the voltage of the second gear is 38V-60V; the voltage of the first gear is more than 60V.

The first analog light bar 101, the second analog light bar 102, and the third analog light bar 103 may have the same or different colors. For example, in some embodiments, the second simulated light bar 102 is the same color of light emitted as the first simulated light bar 101, and the third simulated light bar 103 is a different color of light emitted as the first simulated light bar 101. In other embodiments, the first simulated light bar 101, the second simulated light bar 102, and the third simulated light bar 103 all emit light of different colors. In some other embodiments, the first simulated light bar 101, the second simulated light bar 102 and the third simulated light bar 103 emit light with the same color

Specifically, in the present embodiment, the number of the first analog light bars 101 is two, the number of the second analog light bars 102 is two, the number of the third analog light bars 103 is two, the first analog light bar 101 and the second analog light bar 102 both emit green light, and the third analog light bar 103 emits red light.

In another embodiment of the present application, the multimeter further comprises a voice prompt, which is installed on the pen body 11 and electrically connected to the control board 20, and is used for voice prompt during measurement, so that the user has better sense of the measurement process. Specifically, when the multimeter is in a multimeter measurement function mode, during measurement, when the multimeter is normally connected with a measurement object through a meter pen, a first prompt sound is emitted by a voice prompt. When the multimeter is in a power testing function mode, during measurement, and when the measurement voltage is in a first gear, the voice prompter sends out a second prompting sound; when the measured voltage is in the second gear, the voice prompter sends out a third prompting sound; when the measured voltage is in the third gear, the voice prompter emits a fourth prompting sound. The audio frequencies and the volumes of the first prompt tone, the second prompt tone, the third prompt tone and the fourth prompt tone are all different.

It can be understood that, when the multimeter is in the power measuring function mode, during measurement, the display screen 70 displays a measurement symbol, and emits a backlight with a corresponding color according to the test voltage range, the prompt lamp set 100 emits a corresponding prompt tone according to the test voltage range, and the prompt voice device collectively prompts the current measurement state of the user. When the multimeter is in the multimeter measurement function mode, during measurement, the display screen 70 displays corresponding measurement symbols and digital symbols, and prompts the voice device to send out corresponding prompt tones to jointly prompt the user of the current measurement state.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A multimeter is characterized by comprising a pen shell, a control board, a battery and a non-contact voltage probe; the pen shell comprises a pen body, a battery cover, a pen tail and a pen point, the pen body is of a hollow structure, and the control board and the battery are arranged inside the pen body; a battery taking and placing opening is formed in the side wall of the pen body, the battery taking and placing opening is arranged corresponding to the battery, and the battery cover covers the battery taking and placing opening; the pen tail and the pen head are respectively connected to two ends of the pen body, a meter pen interface is arranged in the pen tail, and the non-contact voltage probe is arranged in the pen head; the control board is electrically connected with the battery, the non-contact voltage probe and the meter pen interface.

2. The multimeter of claim 1, wherein: the pen body is characterized by further comprising a display screen, the display screen is installed on the side wall of the pen body and exposed out of the outer surface of the pen body, and the display screen is electrically connected with the control board.

3. The multimeter of claim 1, wherein: the pen body is characterized by further comprising a control key set, the control key set is installed on the side wall of the pen body and exposed out of the outer surface of the pen body, and the control key set is electrically connected with the control board.

4. The multimeter of claim 3, wherein: the control key group comprises a power key and a function mode switching key, the power key is used for controlling the on-off of the power, and the function mode switching key is used for switching the function mode, so that the universal meter is in a universal meter measurement function mode or a power measurement function mode.

5. The multimeter of claim 3, wherein: still include the light, the light is installed on the nib, and with the control panel electricity is connected, control button group is including compound key, compound key is used for triggering measurement data and saves the instruction, still is used for controlling the switch of light.

6. The multimeter of claim 1, wherein: still include the suggestion banks, the suggestion banks is installed on the lateral wall of a body, and expose in the surface of a body, the suggestion banks with the control panel electricity is connected, the suggestion banks is arranged in surveying electric function mode, whether the suggestion has voltage and measurement voltage range.

7. The multimeter of claim 6, wherein: the prompt lamp group comprises a first simulation light bar, a second simulation light bar and a third simulation light bar, and the first simulation light bar, the second simulation light bar and the third simulation light bar are arranged at intervals along the length direction of the pen body;

the multimeter is in a power testing function mode, and during measurement:

when the measuring voltage is in a first gear, the first simulation optical strip emits light;

when the measuring voltage is in a second gear, the first simulation optical strip and the second simulation optical strip emit light simultaneously;

when the measurement voltage is in a third gear, the first simulation light bar, the second simulation light bar and the third simulation light bar emit light simultaneously;

the measurement voltages of the first gear, the second gear and the third gear are sequentially increased.

8. The multimeter of claim 7, wherein: the second simulated light bar and the first simulated light bar have the same luminous color, and the third simulated light bar and the first simulated light bar have different luminous colors.

9. The multimeter of claim 1, wherein: still include voice prompt, voice prompt installs on the pen body, and with the control panel electricity is connected, voice prompt is used for carrying out voice prompt when measuring.

10. The multimeter of claim 1, wherein: still include the battery compartment, the battery compartment is located in the body of the pen, and install on the control panel, the battery is installed in the battery.

Images