Portable mining area switch controller testing device
The ball joint and slot structure solve the problem of dust accumulation affecting heat dissipation, enabling quick replacement of the dust adsorption head and ensuring the normal operation of the heat dissipation mechanism and the dust adsorption effect.
Patent Information
- Application Number
- CN202520718495.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The existing controller testing equipment suffers from dust accumulation, which affects the normal operation of the heat dissipation mechanism, and the dust adsorption head is inconvenient to replace.
It adopts a ball-shaped snap-fit connector and snap-fit groove structure, which allows for quick installation and removal of the dust adsorption head by rotating and snapping it in place.
This improves the efficiency of dust adsorption head installation and removal, ensuring the normal operation of the heat dissipation mechanism and the dust adsorption effect.
Smart Images

Figure CN223897800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of controller testing technology, and in particular to a portable testing device for mine switch controllers. Background Technology
[0002] The switch controller is an intelligent mining protector, mainly used for electrical protection and control in coal mines and other industrial environments. It features multiple protection functions, including leakage current interlocking, overcurrent protection, phase loss protection, undervoltage protection, and programmable protection. It uses a Chinese LCD display to show the current setting value, insulation resistance value, operating current, and operating voltage of the power supply switch. Furthermore, the switch controller has an automatic fault memory function, allowing for the tracking and querying of historical faults, and it also has a reserved 485 communication function, enabling remote control and telemetry.
[0003] Regarding the existing technology patent CN219179581U, a mining leakage current test control device is disclosed, including an explosion-proof enclosure. The explosion-proof enclosure is characterized by: the main cavity and an inlet box located at the upper end of the main cavity; a wiring isolation plate is provided between the main cavity and the inlet box; the wiring isolation plate has terminals connecting to the main cavity and the inlet box; a cabinet door is provided at the front end of the main cavity, and at least one test button is provided on the cabinet door; a switch operating handle for testing is provided on the side of the main cavity; at least one disconnect switch connected to the switch operating handle and an electromagnetic starter integrated protector connected to the disconnect switch are provided inside the main cavity; a transformer is provided in the circuit between the disconnect switch and the electromagnetic starter integrated protector; the test button is connected to the detection port of the electromagnetic starter integrated protector; and the inlet box... The front end of the cable box is equipped with a set of control line interfaces and the two ends are respectively set with incoming line interfaces; This utility model is installed in the coal mine and connected in parallel with the (remote) low-voltage electromagnetic starter (combined starter, etc.) controlled by the mine explosion-proof feeder switch. When the feeder switch is powered on, the isolating switch is closed, the transformer 1140 (660)V is powered on and outputs a secondary voltage of 36V to supply power. The electromagnetic starter integrated protector works and collects voltage judgment and grounding detection status. If the test conditions are met, it can be manually or through intrinsically safe RS485 communication control test. The control relay closes the grounding resistance R1 / R2 circuit, and the leakage current signal is generated through the zero-sequence current transformer. The time relay controls the leakage time protection. After the leakage test trips successfully, the event is recorded and can be queried. It is judged that the feeder switch leakage function is normal and the starter can work normally. It has the advantages of simple and convenient operation, fast speed and short time.
[0004] However, existing controller testing devices generate a lot of dust both externally and internally during heat dissipation. The accumulation of dust will affect the normal operation of the heat dissipation mechanism, resulting in poor heat dissipation effect. Furthermore, after the dust is concentrated and adsorbed, the dust adsorption head needs to be replaced to ensure that the dust can be adsorbed normally in the future and to ensure the normal operation of the heat dissipation mechanism. Utility Model Content
[0005] To overcome the problem that dust accumulation on the dust adsorption head of the existing controller test device over a long period of time affects the normal operation of the heat dissipation mechanism and makes it impossible to quickly replace it.
[0006] The technical solution of this utility model is as follows: a portable mining area switch controller testing device, including a testing device. Heat dissipation mechanisms are provided on both the left and right sides of the temporal portion of the testing device. A dust adsorption head is provided on one side of each of the two heat dissipation mechanisms. A mounting base is fixedly connected to the dust adsorption head on the side closest to the heat dissipation mechanism. An installation groove is provided inside the mounting base. A first snap-fit segment is fixedly connected to each of the four ends of the temporal portion of the installation groove. A second snap-fit segment is fixedly connected to one side of the first snap-fit segment. A spherical snap-fit connector is fixedly connected to one side of the second snap-fit segment. An insertion block is fixedly connected to one side of the heat dissipation mechanism. Spherical slots are provided on the four end faces of the outer surface of the insertion block. A first snap-fit groove is provided on one side of the spherical slot, and a second snap-fit groove is provided on one side of the first snap-fit groove.
[0007] Preferably, the spherical snap-fit connector, the first snap-fit segment, and the second snap-fit segment work together with the spherical snap-fit groove, the first snap-fit groove, and the second snap-fit groove to rotate and snap-fit and fix the dust adsorption head. This is used for the installation and removal of the dust adsorption head, thereby greatly improving the installation and fixing effect, and improving the adsorption of dust, thus greatly improving the heat dissipation effect of the heat dissipation mechanism.
[0008] Preferably, a testing section is provided on the top of the testing equipment, and a wiring connection is provided between the testing section and the dust adsorption head.
[0009] Preferably, the dust adsorption head is equipped with a display screen on its front end, and adjustment rods are provided on both the left and right sides of the display screen.
[0010] Preferably, the heat dissipation mechanism is fitted with an outer shell, and a heat sink is fixedly connected to one side of the outer shell.
[0011] Preferably, the insert block is inserted into the mounting groove, and the spherical clip is inserted into the spherical slot.
[0012] Preferably, the second connector segment is inserted into the first connector segment slot, and the first connector segment is inserted into the second connector segment slot.
[0013] Preferably, the insert has through holes inside, and an adsorption filter is fixedly connected to the inner wall of the dust adsorption head.
[0014] The beneficial effects of this utility model are:
[0015] This portable testing device for mine switch controllers is installed by aligning the mounting base of the dust adsorption head with the insert block, inserting the block into the mounting slot for fixation, and then securing it with four ball-shaped connectors inserted into ball-shaped slots. Rotating the insert block causes the second locking segment on one side of the ball-shaped connectors to engage with the second locking slot. Continuing to rotate the device further secures the first locking segment with the second locking slot. To disassemble, the dust adsorption head is rotated in the opposite direction, causing the first locking segment to disengage from the second locking slot, and vice versa. Finally, the ball-shaped connectors are pulled out of the ball-shaped slots to complete the disassembly of the dust adsorption head. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the controller testing device of this utility model;
[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the connection between the heat dissipation and dust adsorption head of this utility model.
[0018] Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the three-dimensional structure at point A;
[0019] Figure 4 The image shown is a top-view view of the three-dimensional structure of the heat dissipation and dust adsorption head connection of this utility model.
[0020] Figure 5 This utility model is shown. Figure 4 A magnified schematic diagram of the three-dimensional structure at point B.
[0021] Explanation of reference numerals in the attached drawings: 1. Test equipment; 2. Test section; 3. Adjustment rod; 4. Heat sink; 5. Dust adsorption head; 6. Mounting base; 7. Mounting slot; 8. Housing; 9. Heat dissipation mechanism; 10. First snap-fit section; 11. Second snap-fit section; 12. Spherical snap-fit connector; 13. Adsorption filter; 14. Insert block; 15. Through hole; 16. Spherical slot; 17. First snap-fit slot; 18. Second snap-fit slot. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5This utility model provides an embodiment of a portable mine switch controller testing device, including a testing device 1. Heat dissipation mechanisms 9 are provided on both the left and right sides of the temporal portion of the testing device 1. A dust adsorption head 5 is provided on one side of each of the two heat dissipation mechanisms 9. A mounting base 6 is fixedly connected to the side of the dust adsorption head 5 closest to the heat dissipation mechanism 9. The mounting base 6 has an internal mounting groove 7. A first snap-fit segment 10 is fixedly connected to each of the four ends of the temporal portion of the mounting groove 7. A second snap-fit segment 11 is fixedly connected to one side of the first snap-fit segment 10. A spherical snap-fit connector 12 is fixedly connected to one side of the second snap-fit segment 11. An insertion block 14 is fixedly connected to one side of the heat dissipation mechanism 9. A spherical slot 16 is provided on each of the four end faces of the outer surface of the insertion block 14. A first snap-fit groove 17 is provided on one side of the spherical slot 16, and a second snap-fit groove 18 is provided on one side of the first snap-fit groove 17. Figure 1 and Figure 2 As shown, the device includes a test device 1 and a heat dissipation mechanism 9. In this application, the structure of the test device 1 and the heat dissipation mechanism 9 is a prior art solution. The applicant will not provide a detailed description of the internal structure and components of the test device 1 and the heat dissipation mechanism 9 or their connection relationship. Therefore, the above structure and connection relationship are all prior art. The applicant has not made any improvements to the components inside the test device 1 and the heat dissipation mechanism 9.
[0024] Please see Figures 1-2 In this embodiment, a test section 2 is provided above the test device 1. The test section 2 is connected to the dust adsorption head 5 by wiring. A display screen is provided on the front end of the dust adsorption head 5. Debugging rods 3 are provided on both the left and right sides of the display screen, which are interfaces for debugging the device data. A housing 8 is sleeved on the outside of the heat dissipation mechanism 9. A heat sink 4 is fixedly connected to one side of the housing 8 to improve heat dissipation. The heat dissipation effect of the test device 1 can be improved by the heat dissipation mechanism 9 on the left and right sides inside the test device 1. By aligning the mounting base 6 at one end of the dust adsorption head 5 with the plug 14, the plug 14 is inserted into the mounting groove 7 for fixation. At the same time as insertion, the ball joints 12 with four ends inside the mounting groove 7 are engaged into the ball slots 16. After insertion, the plug 14 is rotated so that the second locking segment 11 on one side of the ball joint 12 is rotated and engaged into the second locking groove 18.
[0025] Please see Figures 3-5In this embodiment, the insert 14 is inserted into the mounting slot 7, the spherical snap-fit connector 12 is inserted into the spherical slot 16, the second snap-fit segment 11 is snapped into the first snap-fit slot 17, and the first snap-fit segment 10 is snapped into the second snap-fit slot 18. The insert 14 has a through hole 15 inside, and the inner wall of the dust adsorption head 5 is fixedly connected to an adsorption filter 13, which can adsorb dust and facilitate the subsequent replacement of the dust adsorption head 5. Continue to rotate so that the first snap-fit segment 10 is rotated and snapped into the second snap-fit slot 18 for reinforcement, thus realizing the installation of the dust adsorption head 5. When disassembling, rotate the dust adsorption head 5 in the opposite direction so that the first snap-fit segment 10 is disengaged from the second snap-fit slot 18, and the second snap-fit segment 11 is disengaged from the first snap-fit slot 17. Finally, pull out the spherical snap-fit connector 12 from the spherical slot 16 to complete the disassembly of the dust adsorption head 5.
[0026] During operation, the heat dissipation mechanism 9 on the left and right sides inside the testing equipment 1 can improve the heat dissipation effect of the testing equipment 1. By aligning the mounting base 6 at one end of the dust adsorption head 5 with the plug 14, the plug 14 is inserted into the mounting groove 7 for fixation. At the same time as insertion, the ball joints 12 of the four ends inside the mounting groove 7 are engaged into the ball slots 16. After insertion, the plug 14 is rotated so that the second locking segment 11 on one side of the ball joint 12 is engaged into the second locking groove 18. Continue to rotate so that the first locking segment 10 is engaged into the second locking groove 18 for reinforcement. This completes the installation of the dust adsorption head 5. To disassemble, the dust adsorption head 5 is rotated in the opposite direction so that the first locking segment 10 is disengaged from the second locking groove 18 and the second locking segment 11 is disengaged from the first locking groove 17. Finally, the ball joint 12 is pulled out of the ball slot 16 to complete the disassembly of the dust adsorption head 5.
[0027] By following the steps described above, the mounting base 6 at one end of the dust adsorption head 5 is aligned with the insert block 14, allowing the insert block 14 to be inserted into the mounting groove 7 for fixation. The four ball joints 12 are then inserted into the ball slots 16. By rotating the insert block 14, the second locking section 11 on one side of the ball joint 12 is rotated and locked into the second locking groove 18. This solves the problem that dust accumulation in the existing controller test device's dust adsorption head 5 over a long period of time affects the normal operation of the heat dissipation mechanism 9 and makes it impossible to replace it quickly.
Claims
1. A portable mine switch controller testing device, comprising testing equipment (1), characterized in that: The test device (1) has heat dissipation mechanisms (9) on both sides of the temporal part. A dust adsorption head (5) is provided on one side of the two heat dissipation mechanisms (9). A mounting base (6) is fixedly connected to the dust adsorption head (5) and the side of the heat dissipation mechanism (9). A mounting groove (7) is opened inside the mounting base (6). A first snap-fit section (10) is fixedly connected to the four ends of the temporal part of the mounting groove (7). A second snap-fit section (11) is fixedly connected to one side of the first snap-fit section (10). A ball snap-fit connector (12) is fixedly connected to one side of the second snap-fit section (11). A plug (14) is fixedly connected to one side of the heat dissipation mechanism (9). A ball slot (16) is opened on the four end faces of the outer surface of the plug (14). A first segment snap-fit groove (17) is opened on one side of the ball slot (16). A second segment snap-fit groove (18) is opened on one side of the first segment snap-fit groove (17).
2. The portable mine switch controller testing device according to claim 1, characterized in that: A test section (2) is provided on the top of the test equipment (1), and a wiring is connected between the test section (2) and the dust adsorption head (5).
3. The portable mine switch controller testing device according to claim 1, characterized in that: The dust adsorption head (5) has a display screen on its front end, and adjustment rods (3) are provided on both the left and right sides of the display screen.
4. The portable mine switch controller testing device according to claim 1, characterized in that: The heat dissipation mechanism (9) is fitted with a shell (8), and a heat sink (4) is fixedly connected to one side of the shell (8).
5. The portable mine switch controller testing device according to claim 1, characterized in that: Insert the insert (14) into the mounting slot (7) and insert the ball-shaped connector (12) into the ball-shaped slot (16).
6. The portable mine switch controller testing device according to claim 1, characterized in that: The second snap-fit segment (11) snaps into the first snap-fit slot (17), and the first snap-fit segment (10) snaps into the second snap-fit slot (18).
7. The portable mine switch controller testing device according to claim 1, characterized in that: The insert (14) has a through hole (15) inside, and the dust adsorption head (5) has an adsorption filter (13) fixedly connected to its inner wall.
Citation Information
Patent Citations
Mining electric leakage test control device
CN219179581U