A multi-functional electrical instrument

CN224624645UActive Publication Date: 2026-08-11MIAOBAI IND (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0004]针对现有技术的不足,本实用新型提供了一种多功能电工仪表,通过集成多样功能结构、优化操作与收纳设计,解决了功能单一、操作不便、防护及耐用性差的问题,提升电工作业效率与仪表实用性

Benefits of technology

[0020]1、本实用新型中,通过设置钢化防护玻璃、防滑脚垫、散热孔等,强化仪表防护、稳定放置与散热性能,延长使用寿命,保障检测作业稳定进行。

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Abstract

This utility model relates to the field of electrical instrumentation technology and discloses a multifunctional electrical instrument, including an electrical instrument mechanism with a test connector assembly. The mechanism includes a multimeter head, with a display screen embedded in the front for intuitively displaying test data. The outer surface of the display screen is covered with tempered protective glass for protection. A control knob, control switch, and control buttons are located on the outside of the multimeter head and below the display screen, enabling adjustments to functions and ranges. This utility model enhances instrument protection, stability, and heat dissipation performance by incorporating tempered protective glass, anti-slip pads, and ventilation holes, extending its service life and ensuring stable testing operations.
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Description

Technical Field

[0001] This utility model relates to the field of electrical instrumentation technology, specifically a multifunctional electrical instrument. Background Technology

[0002] Electrical instruments are crucial tools for electricians in their daily work, used to measure circuit parameters (such as voltage, current, and resistance). Existing electrical instruments suffer from the following problems: their functions are relatively limited, mostly only meeting basic electrical parameter measurements, making them unsuitable for diverse testing needs in complex scenarios; their ease of operation is poor, with probe storage and instrument carrying often causing inconvenience; and their protection and durability are insufficient, with displays easily damaged by impacts, and prolonged use affecting heat dissipation and battery life, impacting instrument stability and lifespan, thus failing to efficiently assist electricians in completing various testing tasks. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a multifunctional electrical instrument. By integrating diverse functional structures and optimizing operation and storage design, it solves the problems of single function, inconvenient operation, poor protection and durability, thereby improving the efficiency of electrical work and the practicality of the instrument.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional electrical instrument, including an electrical instrument mechanism, wherein a detection connector assembly is configured on the electrical instrument mechanism.

[0007] As a further embodiment of this utility model: the electrical instrument mechanism includes a multimeter head, the front of which is embedded with a display screen for intuitively displaying test data. The outer surface of the display screen is covered with tempered protective glass to protect the display screen. A control knob, control switch, and control button are provided on the outside of the multimeter head and below the display screen to coordinate the adjustment of functions, range, etc.

[0008] As a further improvement of this utility model: a handle is installed on the top of the multimeter head for easy carrying; test lead holders are fixed on both sides of the handle for storing test leads; a multi-functional test lead interface is provided at the lower front end of the multimeter head to adapt to different testing needs; and heat dissipation holes are distributed on the middle surface of the rear end of the multimeter head to ensure stable operation of the instrument.

[0009] As a further improvement of this utility model: the back of the multimeter head is provided with anti-slip pads to prevent slipping and displacement when placed; a charging port is provided at the bottom center of the multimeter head for convenient charging; a battery compartment is provided at the bottom of the back of the multimeter head for battery replacement to ensure battery life; and a speaker is provided at the top of the back of the multimeter head for abnormal indication, etc.

[0010] As a further embodiment of this utility model: the detection connector assembly includes a connecting wire, a detection probe, and a probe connector inserted into a multi-functional probe interface. The probe connector is fixedly connected to one end of the connecting wire, and the other end of the connecting wire is connected to the detection probe to form a detection path.

[0011] As a further improvement of this utility model: the edge of the tempered protective glass is fixed to the multimeter head with sealant, and the edge of the tempered protective glass is flush with the front of the multimeter head, which not only ensures the protective effect, but also maintains a flat appearance and avoids scratches.

[0012] As a further improvement of this utility model: the control buttons include at least three independent buttons located on the side of the multimeter head, and the side of each control button is 0.5-1mm higher than the side of the multimeter head, which facilitates pressing operation and precise function triggering.

[0013] As a further improvement of this utility model, the multi-functional probe interface includes at least four interfaces of different specifications, and each interface is provided with an elastic contact piece to adapt to various probes and ensure stable electrical connection.

[0014] As a further improvement of this utility model, the heat dissipation holes are arranged in a matrix, and the diameter of each heat dissipation hole is 1-2mm and the spacing between the holes is 2-3mm, which can dissipate heat efficiently and at the same time prevent dust to a certain extent.

[0015] As a further improvement of this utility model: the two ends of the handle are rotatably connected to the top of the multimeter head through a pivot, and the handle can rotate 0-180 degrees around the pivot, unfolding when carrying and folding when storing, flexibly adapting to different scenarios.

[0016] As a further improvement of this utility model: the probe holder has a U-shaped structure and an arc-shaped groove on the inner side. The diameter of the groove is adapted to the diameter of the probe, which securely stores the probe and prevents it from being lost or misplaced.

[0017] As a further improvement of this utility model: there are four anti-slip pads, which are located at the four corners of the bottom of the multimeter head. The anti-slip pads have a grid-like anti-slip texture at the end away from the multimeter head to enhance placement stability and prevent slippage.

[0018] As a further improvement of this utility model: the test probe includes a metal probe and an insulating handle. The exposed length of the metal probe is 5-8mm, which meets the conventional testing depth. The surface of the insulating handle is provided with anti-slip protrusions, which make it comfortable to hold and not easy to slip.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this utility model, by setting tempered protective glass, anti-slip pads, heat dissipation holes, etc., the protection of the instrument, stable placement and heat dissipation performance are enhanced, the service life is extended, and the stable operation of the testing is guaranteed.

[0021] 2. In this utility model, the carrying handle, tester holder, and multi-functional tester interface optimize portability, tester storage, and functional adaptability, making electrician operation more convenient, adapting to various testing scenarios, and improving work efficiency. Attached Figure Description

[0022] Figure 1 This is a perspective view of the entire utility model;

[0023] Figure 2 The three-dimensional electrical instrument mechanism of this utility model Figure 1 ;

[0024] Figure 3 The three-dimensional electrical instrument mechanism of this utility model Figure 2 ;

[0025] Figure 4 This is a perspective view of the detection connector assembly of this utility model.

[0026] In the diagram: 1. Electrical instrument mechanism; 2. Test connector assembly; 11. Multimeter head; 12. Display screen; 13. Tempered protective glass; 14. Control knob; 15. Control button; 16. Multi-function probe interface; 17. Heat dissipation hole; 18. Handle; 19. Probe holder; 110. Anti-slip pad; 111. Charging interface; 112. Battery compartment; 113. Speaker; 114. Control switch; 21. Probe connector; 22. Connecting wire; 23. Test probes. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figures 1-4 In this embodiment of the utility model, a multifunctional electrical instrument includes an electrical instrument mechanism 1, on which a detection connector assembly 2 is configured.

[0031] The electrical instrument mechanism 1 includes a multimeter head 11. A display screen 12 is embedded on the front of the multimeter head 11 for intuitively displaying test data. The outer surface of the display screen 12 is covered with tempered protective glass 13 to protect the display screen 12. A control knob 14, a control switch 114, and a control button 15 are arranged on the outside of the multimeter head 11 and below the display screen 12 to coordinate the adjustment of functions, ranges, etc.

[0032] The multimeter head 11 is equipped with a handle 18 on the top for easy carrying. The sides of the handle 18 are fixed with probe holders 19 for storing the test probes 23. The multimeter head 11 has a multi-functional probe interface 16 at the lower front end to adapt to different testing needs. The multimeter head 11 has heat dissipation holes 17 distributed on the middle surface of the rear end to ensure stable operation of the instrument.

[0033] The multimeter head 11 has anti-slip feet 110 on the back to prevent slipping and displacement when placed. The charging port 111 is located in the middle of the bottom of the multimeter head 11 for convenient charging. The battery compartment 112 is located at the bottom of the back of the multimeter head 11, allowing for battery replacement to ensure battery life. The speaker 113 is located at the top of the back of the multimeter head 11 for abnormal indication, etc.

[0034] The test connector assembly 2 includes a connecting wire 22, a test probe 23, and a test probe connector 21 inserted into the multi-functional test probe interface 16. The test probe connector 21 is fixedly connected to one end of the connecting wire 22, and the other end of the connecting wire 22 is connected to the test probe 23 to form a test path.

[0035] The edge of the tempered protective glass 13 is fixed to the multimeter head 11 with sealant, and the edge of the tempered protective glass 13 is flush with the front of the multimeter head 11, which ensures the protective effect and maintains a flat appearance to avoid scratches.

[0036] The control buttons 15 include at least three independent buttons located on the side of the multimeter head 11, and the side of each control button 15 is 0.5-1mm higher than the side of the multimeter head 11, which facilitates pressing operation and precise function triggering.

[0037] The multi-functional probe interface 16 includes at least four interfaces of different specifications, and each interface has a flexible contact piece inside to adapt to various probes and ensure stable electrical connection.

[0038] The heat dissipation holes 17 are arranged in a matrix, with each hole having a diameter of 1-2mm and a spacing of 2-3mm, providing efficient heat dissipation while also offering some degree of dust protection.

[0039] The handle 18 is connected to the top of the multimeter head 11 by a pivot at both ends. The handle 18 can rotate 0-180 degrees around the pivot, unfolding when carrying and folding when storing, making it flexible and adaptable to different scenarios.

[0040] The probe holder 19 has a U-shaped structure and an arc-shaped groove on the inside. The diameter of the groove is compatible with the diameter of the probe 23, which securely stores the probe and prevents it from being lost or misplaced.

[0041] There are four anti-slip pads 110, which are located at the four corners of the bottom of the multimeter head 11. The anti-slip pads 110 have a grid-like anti-slip texture on the end away from the multimeter head 11 to enhance the stability of the placement and prevent slipping.

[0042] The test probe 23 includes a metal probe and an insulating handle. The exposed length of the metal probe is 5-8mm, which meets the standard testing depth. The surface of the insulating handle is provided with anti-slip bumps, making it comfortable to hold and less prone to slipping.

[0043] The working principle of this utility model is as follows: When in use, according to the testing requirements, select the function and range by controlling the control knob 14, control button 15, and control switch 114. Insert the probe connector 21 of the test connector assembly 2 into the corresponding multi-function probe interface 16, hold the test probe 23 to contact the part to be tested, and the test data is displayed on the display screen 12 after being processed by the circuit. After the operation is completed, the test probe 23 is inserted into the probe holder 19 for storage. The instrument can be easily carried by using the handle 18. When charging, connect to the power supply through the charging interface 111, or open the battery compartment 112 to replace the battery to ensure the battery life. The heat dissipation hole 17 continuously dissipates heat for the instrument, and the anti-slip foot pad 110 ensures stable placement.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multifunctional electrical instrument, comprising an electrical instrument mechanism (1), wherein a detection connector assembly (2) is disposed on the electrical instrument mechanism (1); Its features are: The electrical instrument mechanism (1) includes a multimeter head (11), a display screen (12) is embedded on the front of the multimeter head (11), the outer surface of the display screen (12) is covered with tempered protective glass (13), and a control knob (14), a control switch (114) and a control button (15) are provided on the outside of the multimeter head (11) and below the display screen (12); The multimeter head (11) is equipped with a handle (18) on the top, and the handle (18) is fixed with a probe holder (19) on both sides. The multimeter head (11) has a multi-functional probe interface (16) at the lower front end, and the multimeter head (11) has heat dissipation holes (17) distributed on the middle surface of the rear end. The multimeter head (11) is provided with anti-slip pads (110) on the back, a charging port (111) is provided at the middle of the bottom of the multimeter head (11), a battery compartment (112) is provided at the bottom of the multimeter head (11), and a speaker (113) is provided at the top of the back of the multimeter head (11). The test connector assembly (2) includes a connecting wire (22), a test probe (23), and a test probe connector (21) inserted into the multi-functional test probe interface (16). The test probe connector (21) is fixedly connected to one end of the connecting wire (22), and the other end of the connecting wire (22) is connected to the test probe (23).

2. The multifunctional electrical instrument according to claim 1, characterized in that: The edge of the tempered protective glass (13) is fixed to the multimeter head (11) with sealant, and the edge of the tempered protective glass (13) is flush with the front of the multimeter head (11).

3. A multifunctional electrical instrument according to claim 1, characterized in that: The control buttons (15) include at least three independent buttons located on the side of the multimeter head (11).

4. A multifunctional electrical instrument according to claim 1, characterized in that: The multi-functional probe interface (16) includes at least four interfaces of different specifications, and each interface has an elastic contact piece inside.

5. A multifunctional electrical instrument according to claim 1, characterized in that: The heat dissipation holes (17) are arranged in a matrix.

6. A multifunctional electrical instrument according to claim 1, characterized in that: The handle (18) is rotatably connected to the top of the multimeter head (11) at both ends via a pivot.

7. A multifunctional electrical instrument according to claim 1, characterized in that: The probe holder (19) has a U-shaped structure and an arc-shaped groove on the inner side. The diameter of the groove is adapted to the diameter of the probe (23).

8. A multifunctional electrical instrument according to claim 1, characterized in that: There are four anti-slip pads (110), which are located at the four corners of the bottom of the multimeter head (11). The anti-slip pads (110) have a grid-like anti-slip pattern at the end away from the multimeter head (11).

9. A multifunctional electrical instrument according to claim 1, characterized in that: The test probe (23) includes a metal probe and an insulated handle.