A small current probe
The design of the easy-to-disassemble adjustment component and the adapter connection component solves the problem of inconvenient battery replacement for small current probes, improves the efficiency of use and the compatibility of the detection connection, and simplifies the disassembly and assembly process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEKEM ELECTRONICS GUANGZHOU
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-14
AI Technical Summary
Existing low-current probes are inconvenient to replace batteries, affecting efficiency, and are time-consuming and laborious to install and remove.
The device employs a removable adjustment assembly and an adapter connection assembly. The battery cover is secured by a snap-fit mechanism, and the flexible connection design allows for easy battery replacement by simply pushing the positioning protrusion out of the positioning groove and removing the sliding restriction. The probe component allows for angle adjustment of the magnetic core frame through the cooperation of a rotating connection and a flexible connector, facilitating detection connections.
It improves the efficiency of current probe usage, simplifies the battery replacement process, enhances the compatibility and stability of the detection connection, and avoids the problem of low disassembly and assembly efficiency.
Smart Images

Figure CN224500756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of current detection technology, specifically a small current probe. Background Technology
[0002] In industrial production processes, small current probes can be used to monitor and control various minute currents, such as the current status of semiconductor devices, electronic ballasts, and variable frequency home appliances, to ensure the stability of the production process and the quality of the products.
[0003] Current low-current probe devices are secured with screws during use, powered by an internal battery. The probe is then set up to detect the current of electrical equipment. While existing low-current probes use screws to lock the battery compartment for stable operation, the batteries require frequent replacement. Since multiple screws are used for installation, removal is time-consuming and laborious. Because the probe needs continuous power to monitor current, low installation and removal efficiency affects its overall performance. Therefore, optimization and improvement are needed. Utility Model Content
[0004] The purpose of this invention is to provide a small current probe to solve the problem mentioned in the background art that it is inconvenient to replace the battery inside the battery installation box and it is difficult to provide a stable power supply for monitoring the current status.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a small current probe, comprising: a lower connecting shell, an upper connecting shell connected to the top of the lower connecting shell, a data cable connected to one side of the lower connecting shell, and a probe bottom shell fixedly connected to one side of the data cable; and further comprising a detachable adjustment assembly and an adapter connection assembly.
[0006] The easy-to-disassemble adjustment component is located on the inner side of the connecting lower shell. The easy-to-disassemble adjustment component includes a battery cover. Positioning protrusions are connected to both the upper and lower sides of the inner wall of the battery cover. Positioning grooves are provided on the inner side of the positioning protrusions. The easy-to-disassemble adjustment component is used for the convenient disassembly and assembly of the connecting box.
[0007] The adapter connection assembly is located at the top of the probe bottom shell. The adapter connection assembly includes a probe top shell, and a magnetic core skeleton is provided at one end of the inner side of the probe top shell. The adapter connection assembly is used to adapt the connection of the probe.
[0008] Preferably, a control motherboard is installed on the inner side of the connecting lower shell, and a toggle switch is slidably connected to the top of the control motherboard, and a battery body is installed on one side of the control motherboard.
[0009] Preferably, a knob is rotatably connected to the front end of the connecting upper shell, and a slot for engaging with the knob is provided on the inner side of the connecting upper shell.
[0010] Preferably, the battery cover is slidably connected to the rear side of the connecting lower shell, and positioning protrusions are connected to both the upper and lower ends of the inner side of the battery cover.
[0011] Preferably, the top of the connecting upper shell has a positioning groove that engages with the positioning protrusion.
[0012] Preferably, one end of the battery cover is fixedly connected to an insertion guide block, and the inside side of the battery cover is fixedly connected to a mating block.
[0013] Preferably, the probe top shell is rotatably connected to the top of the probe bottom shell, and an elastic connector is connected to the inner middle of the probe top shell.
[0014] Preferably, a shielding shell is fixedly connected to one end of the inner side of the probe top shell, and the magnetic core skeleton is installed inside the shielding shell.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This utility model protects the battery body inside the small current probe connector box by setting a battery cover to be fixed to the outer part of the battery compartment of the small current probe connector box, which is composed of the lower and upper shells, through a snap-fit installation method. When replacing the battery, it is only necessary to push it to make the positioning protrusion disengage from the positioning groove, thereby removing the restriction on the sliding of the battery cover. This allows for convenient replacement of the battery body and improves the efficiency of probe use.
[0017] When installing the probe, the probe bottom shell and probe top shell are rotatably connected, and then an elastic connector is set on the inside to elastically compress and make one end of the probe top shell fit, which facilitates the formation of a clamp for the internal magnetic core skeleton. The clamping angle is adjustable within a certain range, which can improve the adaptability of the detection connection. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is an exploded three-dimensional structural diagram of the probe connection box of this utility model;
[0020] Figure 3 This is an exploded three-dimensional structural diagram of the current probe component of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the battery cover of this utility model from another perspective.
[0022] In the diagram: 1. Connecting lower shell; 2. Connecting upper shell; 3. Data cable; 4. Probe bottom shell; 5. Battery cover; 6. Toggle switch; 7. Knob; 8. Control motherboard; 9. Slot; 10. Battery body; 11. Positioning slot; 12. Insertion guide block; 13. Positioning protrusion; 14. Docking block; 15. Probe top shell; 16. Elastic connector; 17. Shielding shell; 18. Magnetic core skeleton. Detailed Implementation
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0025] like Figure 1 - Figure 4 As shown, this application provides a small current probe, including: a lower connecting shell 1, an upper connecting shell 2 connected to the top of the lower connecting shell 1, the lower connecting shell 1, the upper connecting shell 2 and the internal electronic components constitute a probe connection box, a data cable 3 is connected to one side of the lower connecting shell 1, and a probe bottom shell 4 is fixedly connected to one side of the data cable 3.
[0026] Specifically, such as Figure 2 As shown, a knob 7 is rotatably connected to the front end of the upper shell 2. The knob 7 is used to control the power of the probe. The inner side of the upper shell 2 is provided with a slot 9 that engages with the knob 7. The outer side of the lower shell 1 is also provided with a corresponding slot. The two slots 9 are connected to restrict the knob 7. The knob 7 is located inside the slot 9. The depth of the slot 9 is greater than the thickness of the knob 7. The outer side of the knob 7 is slightly lower than the edges of the lower shell 1 and the upper shell 2, which can prevent accidental touch. The knob 7 is also provided with multiple grooves to increase the friction between the knob 7 and the fingers when rotating and adjusting, thereby improving the stability of rotation.
[0027] The inner side of the connecting lower shell 1 is provided with a detachable adjustment component, which includes a battery cover 5. The upper and lower sides of the inner wall of the battery cover 5 are connected with positioning protrusions 13. The inner side of the positioning protrusions 13 is provided with positioning grooves 11. The detachable adjustment component is used for the convenient disassembly and assembly of the connecting box.
[0028] Specifically, such as Figure 2As shown, a control motherboard 8 is installed on the inner side of the lower shell 1, and a toggle switch 6 is slidably connected to the top of the control motherboard 8. Shielding modules are welded to the upper and lower ends of the control motherboard 8 for installation protection. The toggle switch 6 is used to control the switch of the probe detection. A battery body 10 is installed on one side of the control motherboard 8, and the battery body 10 is used to power the probe detection.
[0029] Specifically, such as Figure 4 As shown, the battery cover 5 is slidably connected to the rear side of the lower shell 1. The battery cover 5 is used to protect the battery body 10 from the outside. The upper and lower ends of the inner side of the battery cover 5 are connected to positioning protrusions 13. The top of the upper shell 2 is provided with a positioning groove 11 that engages with the positioning protrusions 13. When the battery cover 5 is engaged with the outside of the battery compartment where the lower shell 1 and the upper shell 2 are connected, the positioning protrusions 13 are engaged in the positioning groove 11 for limiting. The battery cover 5 can be adjusted by the elasticity of the plastic material itself. It can be moved by applying a little pressure to achieve easy disassembly and snap-fit installation.
[0030] Specifically, such as Figure 4 As shown, one end of the battery cover 5 is fixedly connected to an insertion guide block 12, and the inside side of the battery cover 5 is fixedly connected to a mating block 14. The insertion guide block 12 is first inserted into the outside of the connecting box body that connects the lower shell 1 and the upper shell 2. Then, after the battery cover 5 is completely locked outside the battery compartment, the mating block 14 is inserted to squeeze and limit the position.
[0031] The top of the probe bottom shell 4 is provided with an adapter connection component, which includes the probe top shell 15. A magnetic core skeleton 18 is provided on one inner end of the probe top shell 15. The adapter connection component is used to connect the probe.
[0032] Specifically, such as Figure 3 As shown, the probe top shell 15 is rotatably connected to the top of the probe bottom shell 4. The connection between the probe bottom shell 4 and the probe top shell 15 is used to form a current probe component. An elastic connector 16 is connected to the middle of the inner side of the probe top shell 15. A rotating shaft is connected between the probe top shell 15 and the probe bottom shell 4 to facilitate the control of the rotation of the probe top shell 15. Then, the elastic connector 16 is connected to the inner side of the probe top shell 15. The elasticity of the elastic connector 16 itself can be used to bring the other end of the probe top shell 15 and the probe bottom shell 4 closer together to form a clamping effect.
[0033] Specifically, such as Figure 3 As shown, a shielding shell 17 is fixedly connected to one end of the inner side of the probe top shell 15. A magnetic core skeleton 18 is installed inside the shielding shell 17. Two shielding shells 17 and two magnetic core skeletons 18 are provided and installed on the inner detection end of the probe bottom shell 4 and the probe top shell 15. The magnetic core skeleton 18 is used to adapt and connect to electrical appliances for current detection.
[0034] In this embodiment: When protecting the battery body 10 inside the small current probe connection box, the battery cover 5 is fixed to the outer side of the battery compartment of the small current probe connection box, which is composed of the lower shell 1 and the upper shell 2, by means of a snap-fit installation. When replacing the battery, it is only necessary to push it so that the positioning protrusion 13 disengages from the positioning groove 11, thereby removing the restriction on the sliding of the battery cover 5 and facilitating the replacement of the battery body 10. The probe bottom shell 4 and the probe top shell 15 are rotatably connected, and then the elastic connector 16 is provided on the inner side for elastic compression, so that one end of the probe top shell 15 fits, which facilitates the internal magnetic core skeleton 18 to clamp the current detection part within a certain angle range.
[0035] Specifically, the solution is as follows: During the use of the low-current probe, the probe assembly consisting of the probe top shell 15 and the probe bottom shell 4 should first be brought close to the connection end of the electrical appliance to be tested. By rotating the probe top shell 15 and elastically connecting the elastic connector 16, the position of the magnetic core skeleton 18 of the connected electrical appliance can be adjusted. Then, the connection end of the electrical appliance is adapted and positioned. Then, the toggle switch 6 is turned on to turn on the low-current probe. Then, the knob 7 is rotated to adjust the power. The knob 7 has multiple grooves to increase the friction between the knob 7 and the fingers when rotating and adjusting, thereby improving the stability of the rotation. The knob 7 is located inside the connection box to prevent accidental touch. The battery body 10 is installed inside for power supply. When the battery body 10 is to be replaced, the battery cover 5 is toggled to disengage the insertion guide block 12 and the docking block 14 from the connection box. Then, the positioning protrusion 13 is disengaged from the positioning groove 11, making it easy to remove the battery cover 5 and replace the battery body 10 inside, thus avoiding affecting the testing efficiency.
[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.
[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A low-current probe, comprising: A lower connecting shell (1) is connected to a top connecting shell (2), a data cable (3) is connected to one side of the lower connecting shell (1), and a probe bottom shell (4) is fixedly connected to one side of the data cable (3). The feature is that it further includes: The easy-to-disassemble adjustment assembly is located on the inner side of the connecting lower shell (1). The easy-to-disassemble adjustment assembly includes a battery cover (5). The upper and lower sides of the inner wall of the battery cover (5) are connected with positioning protrusions (13). The inner side of the positioning protrusions (13) is provided with positioning grooves (11). The easy-to-disassemble adjustment assembly is used for the convenient disassembly and assembly of the connecting box. An adapter connection assembly is disposed at the top of the probe bottom shell (4). The adapter connection assembly includes a probe top shell (15). A magnetic core skeleton (18) is disposed at one end of the inner side of the probe top shell (15). The adapter connection assembly is used to adapt the connection of the probe.
2. A small current probe according to claim 1, characterized in that, A control motherboard (8) is installed on the inner side of the connecting lower shell (1), and a toggle switch (6) is slidably connected to the top of the control motherboard (8). A battery body (10) is installed on one side of the control motherboard (8).
3. A small current probe according to claim 1, characterized in that, A knob (7) is rotatably connected to the front end of the upper shell (2), and a slot (9) is provided on the inner side of the upper shell (2) to engage with the knob (7).
4. A small current probe according to claim 1, characterized in that, The battery cover (5) is slidably connected to the rear side of the connecting lower shell (1), and positioning protrusions (13) are connected to both the upper and lower ends of the inner side of the battery cover (5).
5. A small current probe according to claim 1, characterized in that, The top of the connecting upper shell (2) is provided with a positioning groove (11) that engages with the positioning protrusion (13).
6. A small current probe according to claim 4, characterized in that, One end of the battery cover (5) is fixedly connected to a plug guide block (12), and a docking block (14) is fixedly connected to the inside side of the battery cover (5).
7. A small current probe according to claim 1, characterized in that, The probe top shell (15) is rotatably connected to the top of the probe bottom shell (4), and an elastic connector (16) is connected to the middle of the inner side of the probe top shell (15).
8. A small current probe according to claim 7, characterized in that, A shielding shell (17) is fixedly connected to one end of the inner side of the probe top shell (15), and the magnetic core skeleton (18) is installed on the inner side of the shielding shell (17).