Improved insulation resistance tester

Abstract

The utility model discloses an improved insulation resistance tester, which belongs to the field of resistance testers and is characterized in that first lateral handle parts are arranged at the upper parts of the two sides of a rear shell, second lateral handle parts are arranged at the upper parts of the two sides of a front shell, accommodating cavities are formed in the second lateral handle parts and the first lateral handle parts, and electric wires are accommodated through the accommodating cavities; an isolation block is arranged in the second lateral handle part, interface jacks are formed in the end face of the isolation block, a first wire and a second wire are inserted and connected into the two interface jacks respectively, and then the first wire and the second wire are clamped in the interface jacks through connectors of the first wire and the second wire. And a lateral handle part convenient to grasp is designed, so that the tester is more convenient to carry. Due to the design of the groove and the arc-shaped corner of the handle part, the comfort and the stability during use are improved. And the wire designed by the handle is matched with the handle part, so that the portability is further improved. And a storage cavity is formed in the lateral handle part and is used for storing electric wires, so that the tester is kept clean and tidy.

Description

Technical Field

[0001] This utility model relates to the field of resistance testers, and in particular to an improved insulation resistance tester. Background Technology

[0002] An insulation resistance tester, also known as a digital insulation resistance tester, megohmmeter, or intelligent insulation resistance tester, is an instrument used to measure the insulation resistance of electrical equipment. It is suitable for insulation testing during the maintenance, repair, testing, and calibration of various electrical equipment. The working principle of an insulation resistance tester is based on Ohm's law; it calculates the resistance value by applying a high voltage and measuring the resulting current. The tester first applies a DC voltage excitation to the device under test, typically ranging from 50V to 5kV, much higher than the voltage used by the ohmmeter function of a typical digital multimeter. After applying the voltage, the tester measures the current flowing through the insulation layer of the device under test. These currents are often very weak and require highly sensitive measurement circuitry to capture. Finally, the tester calculates the insulation resistance according to Ohm's law. A higher insulation resistance value indicates better insulation performance.

[0003] Currently, insulation resistance testers face a significant problem in practical applications. Typically, the wiring and the testing instrument are stored separately. While this design facilitates organization and storage to some extent, it can cause inconvenience when users travel to the site for measurements. Specifically, users may forget to bring either the wiring or any component of the testing instrument, directly preventing resistance measurements and impacting work efficiency and progress.

[0004] To address this issue, some users choose to bundle the wiring to the testing instrument. However, while this solves the problem of forgetting, it introduces another problem. Messy wiring and loosely attached connectors not only affect the aesthetics and neatness of the testing instrument, but more importantly, during transport and carrying, these messy wires and connectors may be damaged by impacts or friction, thus affecting the accuracy and lifespan of the testing instrument. Furthermore, messy wiring may increase the risk of accidental contact during operation, reducing work safety. Utility Model Content

[0005] The main objective of this invention is to provide an improved insulation resistance tester that can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An improved insulation resistance tester includes a rear housing, a front housing, a button interface, and a display area. The front housing is located at the front end of the rear housing, and the display area and button interface are distributed at the front end of the front housing.

[0008] The upper sides of the rear housing are provided with first lateral handles, and the upper sides of the front housing are provided with second lateral handles. The interiors of the second lateral handles and the first lateral handles form a storage cavity, through which the wires are stored.

[0009] The second side handle has an internal isolation block, and the end face of the isolation block has an interface socket. The first wire and the second wire are respectively inserted into the two interface sockets and then secured in the interface sockets through the connectors of the first wire and the second wire. The first wire and the second wire serve as handles for easy carrying by the user.

[0010] As an optional solution of this utility model, the cross-sections of the first side handle and the second side handle are the same, and the lower ends of the first side handle and the second side handle are provided with recessed grooves. The corners of the first side handle and the second side handle are designed in an arc shape. The arc-shaped corners and recessed grooves fit the hand, making it convenient for the user to pick up the handle.

[0011] As an optional solution of this utility model, the isolation block is integrated with the second side handle, the interface socket is located in the middle of the end face of the isolation block, the interface socket is designed as a waist hole, and the inner hole of the interface socket is connected with a buffer strip by adhesive.

[0012] As an optional solution of this utility model, the first side handle is heat-fused to the rear shell, the first side handle is made of PU material, the second side handle is heat-fused to the front shell, and the second side handle is made of PU material.

[0013] As an optional solution of this utility model, the first wire and the second wire have the same specifications, and the first wire and the second wire are knotted to form a handle;

[0014] As an optional solution of this utility model, the connectors of the first wire and the second wire are adapted to the button interface.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The first lateral handle on the upper sides of the rear housing and the second lateral handle on the upper sides of the front housing facilitate user gripping, making the tester more convenient to carry. The recessed grooves at the lower ends of the first and second lateral handles, as well as the curved design at the corners, allow the handles to better fit the hand, improving user comfort and grip stability. The first and second power leads are designed as handles, which, together with the handles, allow users to easily carry the tester, further enhancing portability.

[0017] The storage cavity formed by the interiors of the first and second side handles is used for cable management, ensuring the entire tester remains neat and organized when not in use, preventing cable clutter. The interface socket is located in the center of the end face of the isolation block and features a waist-hole design, which is both aesthetically pleasing and practical. A buffer strip, connected by adhesive, effectively protects the interface socket from damage during storage and transport, thus extending the tester's lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front view of the overall structure of this utility model;

[0020] Figure 3 This is a top view of the overall structure of this utility model;

[0021] Figure 4 This is a partial schematic diagram of the rear housing, front housing, and side handle of this utility model.

[0022] In the diagram: 1. Rear housing; 2. Front housing; 3. Button interface; 4. Display area; 5. First side handle; 6. Second side handle; 7. Isolation block; 8. Interface socket; 9. Storage cavity; 10. First wire; 11. Second wire. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1 - Figure 4 As shown, an improved insulation resistance tester is ingeniously designed, making it easy to carry and use. The tester mainly consists of a rear housing 1, a front housing 2, a button interface 3, and a display area 4. The front housing 2 is designed to be located at the front end of the rear housing 1, while the display area 4 and the button interface 3 are carefully arranged at the front end of the front housing 2, allowing the user to intuitively view the test results and perform operations.

[0025] To further enhance portability, the upper sides of the rear housing 1 are specially designed with first lateral handles 5, while the upper sides of the front housing 2 are also provided with second lateral handles 6. These two handles not only make it easy for users to grip, but their interiors also together form a practical storage cavity 9 for storing wires, allowing the entire tester to remain neat and organized when not in use.

[0026] Inside the second lateral handle 6, an isolation block 7 is cleverly designed, with interface sockets 8 on its end face. These interface sockets 8 are used to insert and connect the first wire 10 and the second wire 11, respectively, and the wire connectors are secured in the interface sockets 8 to ensure a stable connection. The first wire 10 and the second wire 11 not only serve as the power cords for the tester but are also designed as handles, allowing users to easily carry the tester.

[0027] To ensure user comfort and grip stability, the cross-sections of the first lateral handle 5 and the second lateral handle 6 are designed to have the same shape. In addition, the lower ends of these two handles are provided with recessed grooves, and the corners of the handles are designed with arcs. This design allows the handles to fit better with the hand, making it easier for the user to pick up and operate the testing instrument.

[0028] The isolation block 7 and the second lateral handle 6 are integrated into one unit, ensuring structural stability. The interface socket 8 is located in the center of the end face of the isolation block 7 and features a waist-shaped design, which is both aesthetically pleasing and practical. A buffer strip is attached to the inner hole of the interface socket 8 with adhesive, effectively protecting the interface socket 8 and extending the lifespan of the tester.

[0029] The first side handle 5 is connected to the rear housing 1 by heat fusion, ensuring structural stability. The first side handle 5 is made of PU material, which is not only lightweight but also durable. Similarly, the second side handle 6 is also connected to the front housing 2 by heat fusion, and the second side handle 6 is also made of PU material, ensuring overall durability and comfort.

[0030] To ensure the uniformity and convenience of the tester's wiring connections, the first wire 10 and the second wire 11 are designed to have the same specifications. Furthermore, to further enhance portability, the first wire 10 and the second wire 11 are knotted together to form a handle, allowing users to easily carry the tester.

[0031] Finally, to ensure ease of user operation, the connectors of the first wire 10 and the second wire 11 are designed to be compatible with the button interface 3, so that users can quickly connect and disconnect when performing resistance tests, improving the efficiency and accuracy of the test.

[0032] Assembly Process: Assemble the rear housing 1 and front housing 2 together, ensuring their connection points are aligned and secured. Place the button interface 3 and display area 4 on the front end of the front housing 2, ensuring their correct positioning and secure fixation. Install the first side handle 5 on the upper sides of the rear housing 1, ensuring it is heat-fused to the rear housing 1 and checking its stability. Install the second side handle 6 on the upper sides of the front housing 2, ensuring it is heat-fused to the front housing 2 and checking its stability. Integrate the isolation block 7 with the second side handle 6, ensuring the interface socket 8 is located in the center of the end face of the isolation block 7, using a waist-hole design. Attach a buffer strip to the inner hole of the interface socket 8 with adhesive to protect it. Design the connectors of the first wire 10 and the second wire 11 to be compatible with the button interface 3, ensuring the wire specifications are consistent. Form a handle by knotting the first wire 10 and the second wire 11, ensuring the user can easily carry the tester.

[0033] Usage: When carrying the tester, lift the device using the handles of the first lead 10 and the second lead 11. Place the tester on a flat surface, ensuring its stability. Insert the connectors of the first lead 10 and the second lead 11 into the button interface 3, ensuring a secure connection. Turn on the tester and perform a resistance test through the button interface 3. Observe the display area 4 to view the test results. After the test is completed, disconnect the connectors of the first lead 10 and the second lead 11.

[0034] Wire storage process: When the tester is not in use, disconnect the connectors of the first wire 10 and the second wire 11 from the button interface 3. Pass the first wire 10 and the second wire 11 through the interior of the second side handle 6, ensuring they are neatly stored within the storage cavity 9. Ensure the wires do not become tangled or knotted within the storage cavity 9, keeping them tidy. If the wires are long, they can be wrapped around the insulating block 7 for further tidying. Turn off the tester, ensuring the wires will not accidentally fall off or be damaged during transport.

[0035] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved insulation resistance tester, comprising a rear housing (1), a front housing (2), a button interface (3), and a display area (4), wherein the front housing (2) is located at the front end of the rear housing (1), and the display area (4) and the button interface (3) are distributed at the front end of the front housing (2), characterized in that: The upper sides of the rear housing (1) are provided with a first lateral handle (5), and the upper sides of the front housing (2) are provided with a second lateral handle (6). The interior of the second lateral handle (6) and the first lateral handle (5) forms a storage cavity (9), through which the wire is stored. The second side handle (6) is provided with an isolation block (7) inside, and the end face of the isolation block (7) is provided with an interface socket (8). The two interface sockets (8) are respectively connected to the first wire (10) and the second wire (11), and then the connectors of the first wire (10) and the second wire (11) are locked in the interface socket (8). The first wire (10) and the second wire (11) serve as handles for easy carrying by the user.

2. The improved insulation resistance tester according to claim 1, characterized in that: The first side handle (5) and the second side handle (6) have the same cross-section. The lower ends of the first side handle (5) and the second side handle (6) are provided with recessed grooves. The corners of the first side handle (5) and the second side handle (6) are designed in an arc shape. The arc-shaped corners and recessed grooves fit the hand, making it convenient for the user to pick up the handle.

3. An improved insulation resistance tester according to claim 2, characterized in that: The isolation block (7) is integrated with the second side handle (6). The interface socket (8) is located in the middle of the end face of the isolation block (7). The interface socket (8) is designed as a waist hole. The inner hole of the interface socket (8) is connected with a buffer strip by adhesive.

4. An improved insulation resistance tester according to claim 3, characterized in that: The first side handle (5) is heat-fused to the rear housing (1), the first side handle (5) is made of PU material, the second side handle (6) is heat-fused to the front housing (2), and the second side handle (6) is made of PU material.

5. An improved insulation resistance tester according to claim 4, characterized in that: The first wire (10) and the second wire (11) have the same specifications, and the first wire (10) and the second wire (11) are knotted to form a handle.

6. An improved insulation resistance tester according to claim 5, characterized in that: The connectors of the first wire (10) and the second wire (11) are adapted to the button interface (3).

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