CN213122076U

CN213122076U - Portable universal meter

Info

Publication number: CN213122076U
Application number: CN202021259766.9U
Authority: CN
Inventors: 巫伟武
Original assignee: Guangzhou Deken Electronics Co ltd
Current assignee: Guangzhou Deken Electronics Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-04
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to an universal meter technical field, in particular to portable universal meter. The portable multimeter comprises a shell, a circuit board, a display screen, a wiring assembly and an adjusting assembly, wherein the wiring assembly is used for connecting an electrical element to be detected, the adjusting assembly is used for adjusting a detection range, the shell comprises a front cover and a rear cover which are matched in a clamping manner, the front cover is provided with an inner cavity used for accommodating the circuit board, the display screen is embedded at the outer side of the front cover, the wiring assembly and the adjusting assembly are arranged at the outer side of the front cover, and the display screen, the wiring assembly and the adjusting assembly are respectively and electrically connected with the circuit board; the back lid is articulated to be provided with the support frame that is used for adjusting shell inclination. The utility model discloses integrate higher, the volume is less, portable, it is very convenient to use.

Description

Portable universal meter

Technical Field

The utility model relates to an universal meter technical field, in particular to portable universal meter.

Background

The multimeter is a magnetoelectric instrument with a rectifier and capable of measuring a plurality of electrical parameters such as alternating current, direct current, voltage, resistance and the like. The multimeter can be used to measure not only the resistance of the object to be measured, but also the ac/dc voltage. Even multimeters can measure the main parameters of the transistor, the capacitance of the capacitor, and the like. The use of a multimeter is one of the most basic skills in electronics with sufficient proficiency. Common multimeters include a pointer multimeter and a digital multimeter. The pointer type multi-purpose meter is a multi-purpose measuring meter with a meter head as a core component, and measured values are read by the pointer indication of the meter head. The measured value of the digital multimeter is directly displayed in a digital form by a liquid crystal display screen, the reading is convenient, and some digital multimeters also have a voice prompt function.

However, the conventional multimeter integrates a voltmeter, a current meter and an ohmmeter into a whole, has larger volume and heavier mass, and is very inconvenient to carry.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a portable multimeter to it is great to solve current multimeter volume, and the quality is heavier, carries inconvenient technical problem.

The utility model provides a technical scheme that its technical problem adopted is:

a portable multimeter comprises a shell, a circuit board, a display screen, a wiring assembly and an adjusting assembly, wherein the wiring assembly is used for connecting an electrical element to be tested, the adjusting assembly is used for adjusting a detection range, the shell comprises a front cover and a rear cover which are matched in a clamping manner, the front cover is provided with an inner cavity used for accommodating the circuit board, the display screen is embedded at the outer side of the front cover, the wiring assembly and the adjusting assembly are arranged at the outer side of the front cover, and the display screen, the wiring assembly and the adjusting assembly are respectively and electrically connected with the circuit board; the back lid is articulated to be provided with the support frame that is used for adjusting shell inclination.

Preferably, the wiring assembly comprises at least two metal wiring pipes, the at least two wiring pipes are electrically connected with the circuit board, a fixing pipe used for fixing the wiring pipes is arranged on the inner side of the front cover, the fixing pipe is communicated with the outer side of the front cover, and the wiring pipes are in plug-in fit with the fixing pipe.

Preferably, at least two of the wire connecting tubes are connected with the voltage measuring circuit of the circuit board, at least two of the wire connecting tubes are connected with the current measuring circuit of the circuit board, at least two of the wire connecting tubes are connected with the resistance measuring circuit of the circuit board, and each wire connecting tube is provided with a distinguishing mark for distinguishing different detection circuits.

Preferably, the adjusting assembly comprises a rotating disc and an adjusting button which are rotatably arranged on the front cover, the rotating disc is provided with a pointer, the front cover is provided with range readings which are uniformly distributed on the periphery of the rotating disc, and the adjusting button is used for selecting different detection circuits of the circuit board.

Preferably, the rear cover is arranged in a battery cavity, a conducting strip and a conducting spring are arranged in the battery cavity, the conducting strip and the conducting spring are electrically connected with the circuit board, and the rear cover is in clamping fit with a cavity cover used for sealing the battery cavity.

Preferably, the two sides of the width direction of the shell are provided with holding parts, and the holding parts are in an arc shape and are sunken towards the inside of the shell.

Preferably, the gripping part is provided with anti-skid lines.

Preferably, the outer shell is sleeved with a protective sleeve.

Preferably, the protective sleeve comprises a rubber sleeve.

Preferably, one side of the protective sleeve, which is far away from the front cover, is provided with a convex block, and the convex block is provided with a clamping groove.

The utility model has the advantages that: the front cover and the back cover are matched in a clamping way, so that the disassembly is very convenient; the circuit board is an integrated circuit board printed with a current detection circuit, a voltage detection circuit and a resistance detection circuit, and can be connected with an electrical element to be detected through a wiring component, and the adjusting component can be used for adjusting the detection range of each detection circuit; the supporting frame is hinged on the rear cover, so that the vertical angle of the shell can be conveniently adjusted, and observation is facilitated; the utility model discloses integrate higher, the volume is less, portable, it is very convenient to use.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of a three-dimensional structure of a portable multimeter of the present invention;

FIG. 2 is a schematic view of another perspective structure of the portable multimeter of the present invention;

FIG. 3 is a front view of the portable multimeter of the present invention;

fig. 4 is a sectional view taken along the plane a-a in fig. 3.

Reference numerals: 10. a housing; 11. a front cover; 111. a fixed tube; 12. a rear cover; 121. a battery cavity; 122. A chamber cover; 123. a conductive spring; 124. a conductive sheet; 13. a grasping section; 14. anti-skid lines; 15. a support frame; 16. accommodating grooves; 20. a circuit board; 30. a display screen; 40. a wiring assembly; 41. a wire connecting pipe; 50. An adjustment assembly; 51. rotating the disc; 511. a pointer; 52. an adjustment button; 60. a protective sleeve; 61. a bump; 62. a clamping groove.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.

Referring to fig. 1 to 4, a portable multimeter comprises a shell 10, a circuit board 20, a display screen 30, a wiring assembly 40 for connecting an electrical element to be tested, and an adjusting assembly 50 for adjusting a detection range, wherein the shell 10 comprises a front cover 11 and a rear cover 12 which are in clamping fit, the front cover 11 is provided with an inner cavity for accommodating the circuit board 20, the display screen 30 is embedded on the outer side of the front cover 11, the wiring assembly 40 and the adjusting assembly 50 are both arranged on the outer side of the front cover 11, and the display screen 30, the wiring assembly 40 and the adjusting assembly 50 are respectively electrically connected with the circuit board 20; the rear cover 12 is hinged with a support frame 15 for adjusting the inclination angle of the outer shell 10, and the rear cover 12 is further provided with a receiving groove 16 for receiving the support frame 15.

Specifically, the front cover 11 and the rear cover 12 are matched in a tongue-and-groove clamping manner, so that the disassembly is very convenient; the circuit board 20 is an integrated circuit board 20 printed with a current detection circuit, a voltage detection circuit and a resistance detection circuit, and can be connected with an electrical element to be detected through a wiring component 40, and the adjusting component 50 can be used for adjusting the detection range of each detection circuit; the supporting frame 15 is hinged on the rear cover 12, so that the vertical angle of the shell 10 can be conveniently adjusted, and observation is facilitated. The utility model discloses integrate higher, the volume is less, portable, it is very convenient to use.

As shown in fig. 1 and 2, gripping portions 13 are disposed on two sides of the housing 10 in the width direction, the gripping portions 13 are recessed towards the inside of the housing 10 in an arc shape, and the housing 10 can be conveniently gripped by an inspector due to the arrangement of the gripping portions 13. Specifically, the gripping part 13 is provided with the anti-slip lines 14, so that the tester is not easy to fall off after gripping the multimeter, and the carrying is very convenient.

As shown in FIGS. 1 and 2, in order to improve the anti-falling performance of the multimeter, a protective sleeve 60 is sleeved outside the case 10, and in the embodiment, a rubber sleeve can be selected as the protective sleeve 60. The protective sleeve 60 is annular, and can wrap eight vertex angles of the outer shell 10, and expose the front and back of the outer shell 10, thereby facilitating use.

Preferably, a protrusion 61 is disposed on a side of the protective sheath 60 away from the front cover 11, and a locking groove 62 is disposed on the protrusion 61. Specifically, the two bumps 61 are arranged on one side of the rear cover 12, and the two slots 62 are vertically arranged, so that test pencils and the like can be clamped in the slots 62.

As shown in fig. 1 and 4, the wire connection assembly 40 includes at least two metal wire connection tubes 41, the at least two wire connection tubes 41 are electrically connected to the circuit board 20, a fixing tube 111 for fixing the wire connection tubes 41 is disposed inside the front cover 11, the fixing tube 111 communicates with the outside of the front cover 11, and the wire connection tubes 41 are inserted into and matched with the fixing tube 111. In this embodiment, it is preferable that at least two of the voltage measuring circuits of the wire connecting circuit board 20, at least two of the current measuring circuits of the wire connecting circuit board 20, and at least two of the resistance measuring circuits of the wire connecting circuit board 20 are provided with four wire connecting tubes 41 in total, and each of the wire connecting tubes 41 is provided with a distinguishing mark for distinguishing different detection circuits, and can be distinguished by letters or different colors.

As shown in fig. 1 and 4, the adjusting assembly 50 includes a rotating disc 51 rotatably disposed on the front cover 11 and an adjusting button 52, the rotating disc 51 is provided with a pointer 511, the front cover 11 is provided with a plurality of measurement ranges uniformly distributed around the rotating disc 51, and the adjusting button 52 is used for selecting different detection circuits of the circuit board 20.

For convenience of detecting the resistance, as shown in fig. 2 and 4, the rear cover 12 is disposed in a battery cavity 121, a conductive plate 124 and a conductive spring 123 are disposed in the battery cavity 121, the conductive plate 124 and the conductive spring 123 are electrically connected to the circuit board 20, and the rear cover 12 is snap-fitted with a cavity cover 122 for closing the battery cavity 121. This universal meter can be from taking the convenient detection resistance of power, and the battery can conveniently be changed in the setting of chamber lid 122.

In conclusion, the front cover 11 and the rear cover 12 are matched in a tongue-and-groove clamping manner, so that the disassembly is very convenient; the circuit board 20 is an integrated circuit board 20 printed with a current detection circuit, a voltage detection circuit and a resistance detection circuit, and can be connected with an electrical element to be detected through a wiring component 40, and the adjusting component 50 can be used for adjusting the detection range of each detection circuit; the supporting frame 15 is hinged on the rear cover 12, so that the vertical angle of the shell 10 can be conveniently adjusted, and observation is facilitated; the utility model discloses integrate higher, the volume is less, portable, it is very convenient to use.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. A portable multimeter, comprising: the detection device comprises a shell, a circuit board, a display screen, a wiring assembly for connecting an electrical element to be detected and an adjusting assembly for adjusting a detection range, wherein the shell comprises a front cover and a rear cover which are matched in a clamping manner, the front cover is provided with an inner cavity for accommodating the circuit board, the display screen is embedded outside the front cover, the wiring assembly and the adjusting assembly are arranged outside the front cover, and the display screen, the wiring assembly and the adjusting assembly are respectively and electrically connected with the circuit board; the back lid is articulated to be provided with the support frame that is used for adjusting shell inclination.

2. A portable multimeter as recited in claim 1, wherein: the wiring subassembly includes the wiring pipe of two at least metals, two at least wiring pipes with the circuit board electricity is connected, the protecgulum inboard is provided with and is used for fixing the fixed pipe of wiring pipe, fixed pipe with the outside of protecgulum communicates with each other, the wiring pipe with fixed pipe cooperation of pegging graft.

3. A portable multimeter as recited in claim 2, wherein: the at least two survey voltage circuit of wire connection pipe connection circuit board, at least two survey current circuit of wire connection pipe connection circuit board, at least two the resistance-measuring of wire connection pipe connection circuit board, every the wire connection pipe is provided with the differentiation sign that is used for distinguishing different detection circuitry.

4. A portable multimeter as recited in claim 1, wherein: the adjusting assembly comprises a rotating disc and an adjusting button, the rotating disc is rotatably arranged on the front cover and is provided with a pointer, the front cover is provided with range readings, the range readings are uniformly distributed on the periphery of the rotating disc, and the adjusting button is used for selecting different detection circuits of the circuit board.

5. A portable multimeter as recited in claim 1, wherein: the rear cover is arranged in a battery cavity, a conducting strip and a conducting spring are arranged in the battery cavity, the conducting strip and the conducting spring are electrically connected with the circuit board, and the rear cover is clamped and matched with a cavity cover used for sealing the battery cavity.

6. A portable multimeter as claimed in any one of claims 1-5, wherein: the both sides of shell width direction are provided with and hold the portion of getting, it is sunken to shell inside to hold the portion of getting to be the circular arc type.

7. A portable multimeter as recited in claim 6, wherein: the holding part is provided with anti-skid lines.

8. A portable multimeter as recited in claim 6, wherein: the shell overcoat is equipped with the protective sheath.

9. A portable multimeter as recited in claim 8, wherein: the protective sleeve comprises a rubber sleeve.

10. A portable multimeter as recited in claim 8, wherein: one side of the protective sleeve, which is far away from the front cover, is provided with a convex block, and the convex block is provided with a clamping groove.