Test plug
By designing a test plug with a light-emitting diode, the problem of electrical equipment being unable to shut down in time is solved, visual fault prompts and safe shutdowns are achieved, and the safety and convenience of electricity use are improved.
Patent Information
- Application Number
- CN202422896226.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing electrical equipment cannot be stopped in time during use and lacks components to detect faults in a timely manner.
A test plug is designed, which includes a mounting base, a top cover, a bottom cover and a printed circuit board. By connecting wires and light-emitting diodes, current conduction and fault visualization can be achieved, so that problems can be discovered in time and the power supply can be turned off.
It realizes timely fault detection and safe shutdown of electrical equipment, and improves the safety and convenience of electricity use.
Smart Images
Figure CN223427896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical equipment, in particular to a test plug. Background Art
[0002] With the development of society, people's demand for electricity is increasing. Various household appliances and digital products have entered people's lives. In order to meet and facilitate the use of various devices, power cords and plugs have appeared. Not only that, for the convenience of electrical connection, the development and design of electrical connection components have also followed closely with the advancement of technology.
[0003] The phase sequence is the order in which the voltages of each phase of a three-phase power supply pass through the same value. It is related to the direction of rotation of the generator rotor. Generally, the phase sequence of the three electromotive forces (EMFs) is called the positive phase sequence (UV, W, and U). If the generator rotor rotates counterclockwise, the phase sequence of the three phases is reversed, becoming UW, V, and U. This phase sequence is called the reverse phase sequence. This phase sequence is crucial for everyday electricity use, factories, and workshop substations. A GFCI is a ground fault current interrupter (GFC) device, integrated with the outlet housing, effectively detects ground faults, preventing electrical fires and minimizing the severity of current interruptions. It is a device that ensures the safety of electrical connections. Therefore, the use of phase sequence and GFCIs can ensure smoother and safer electrical connections. Of course, when using phase sequence and GFCIs, the plug structure and technology must be appropriately adjusted to address potential issues during use, further enhancing safety and convenience.
[0004] In summary, components that can provide timely alarm prompts can be installed so that electrical equipment can be stopped in time during use. Utility Model Content
[0005] The utility model aims to overcome the shortcoming in the prior art that electrical equipment cannot be stopped in time during use, and provides a test plug equipped with a component capable of promptly detecting faults.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A test plug comprises a mounting base and several plug-ins, the mounting base is provided with a cavity, a top cover, a bottom cover and a printed circuit board are installed on the mounting base, the top cover is placed at the top end of the cavity, the bottom cover is placed at the bottom end of the cavity, the printed circuit board is placed in the cavity, the top cover, the bottom cover and the printed circuit board are all detachably connected to the mounting base, one end of the plug-in is placed at the outer end of the mounting base, the other end of the plug-in passes through the mounting base and is placed in the cavity, the top cover is provided with several prompt holes, the several prompt holes are evenly distributed, connecting wires and light-emitting diodes are installed on the printed circuit board, the connecting wires and the light-emitting diodes each include several, the connecting wires correspond to the plug-ins one-to-one, the light-emitting diodes correspond to the connecting wires one-to-one, one end of the connecting wire is electrically connected to the plug-in, the other end of the connecting wire is electrically connected to the light-emitting diode, the bottom end of the light-emitting diode is connected to the printed circuit board, the top end of the light-emitting diode passes through the prompt hole and is placed at the outer end of the mounting base, and the prompt hole corresponds to the light-emitting diode one-to-one.
[0008] This design can be used to install a test plug through the mounting base and several inserts. The mounting base is provided with a cavity, and a top cover, a bottom cover and a printed circuit board are installed on the mounting base. The top cover is placed at the top end of the cavity, the bottom cover is placed at the bottom end of the cavity, and the printed circuit board is placed in the cavity. In this way, the cavity can be opened or closed by the top cover and the bottom cover, which facilitates the smooth insertion or removal of the printed circuit board into or out of the cavity. The top cover, the bottom cover and the printed circuit board are all detachably connected to the mounting base, which facilitates the installation and removal of the three components of the top cover, the bottom cover and the printed circuit board from the mounting base. There are several prompt holes on the top cover, and the prompt holes are evenly distributed. Connecting wires and light-emitting diodes are installed on the printed circuit board. There are several connecting wires and light-emitting diodes. The connecting wires and the plugs are one-to-one corresponding, and the light-emitting diodes are one-to-one corresponding to the connecting wires. Then, one end of the connecting wire can be controlled to be electrically connected to the plug, and the other end can be electrically connected to the light-emitting diode. Then, when the test plug is controlled to be electrically connected, the current introduced from the plug can be conducted to the light-emitting diode through the connecting wire. The light-emitting diode can convert electrical energy into light energy, that is, the introduction of current can make the light-emitting diode light up in time. If the light-emitting diode does not light up, it means that there is a problem with the test plug. In this way, it can be discovered in time that the problem is with the connecting wire, so that the plug can be turned off immediately, that is, the power can be stopped in time for inspection or maintenance. In this way, the purpose of installing components that can detect faults in time is achieved, thereby ensuring the safety and convenience of electricity use.
[0009] As preferred, a plurality of limiting tubes I are installed on the bottom cover, and the plurality of limiting tubes I are symmetrically distributed at the left and right ends of the cavity; a plurality of limiting tubes II are installed on the top cover, and the limiting tubes II correspond to the limiting tubes I one by one; the printed circuit board is arranged between the limiting tubes I and the limiting tubes II, the bottom end of the printed circuit board is in contact with the limiting tubes I, and the top end of the printed circuit board is in contact with the limiting tubes II. This design allows the printed circuit board to be arranged between the limiting tubes I and the limiting tubes II, and the bottom end of the printed circuit board to be in contact with the limiting tubes I and the top end of the printed circuit board to be in contact with the limiting tubes II, so that the printed circuit board is clamped by the limiting tubes I and the limiting tubes II, and the preliminary limiting of the printed circuit board is achieved. The left and right symmetric distribution of the limiting tubes I and the limiting tubes II can avoid the left and right shaking of the printed circuit board, thereby avoiding the disengagement of the limiting.
[0010] As preferred, a plurality of limiting tubes I are installed on the bottom cover, and the plurality of limiting tubes I are symmetrically distributed at the left and right ends of the cavity; a plurality of limiting tubes II are installed on the top cover, and the limiting tubes II correspond to the limiting tubes I one by one; the printed circuit board is arranged between the limiting tubes I and the limiting tubes II, the bottom end of the printed circuit board is in contact with the limiting tubes I, and the top end of the printed circuit board is in contact with the limiting tubes II. This design allows the printed circuit board to be arranged between the limiting tubes I and the limiting tubes II, and the bottom end of the printed circuit board to be in contact with the limiting tubes I and the top end of the printed circuit board to be in contact with the limiting tubes II, so that the printed circuit board is clamped by the limiting tubes I and the limiting tubes II, and the preliminary limiting of the printed circuit board is achieved. The left and right symmetric distribution of the limiting tubes I and the limiting tubes II can avoid the left and right shaking of the printed circuit board, thereby avoiding the disengagement of the limiting.
[0011] As preferred, a plurality of limiting tubes I are installed on the bottom cover, and the plurality of limiting tubes I are symmetrically distributed at the left and right ends of the cavity; a plurality of limiting tubes II are installed on the top cover, and the limiting tubes II correspond to the limiting tubes I one by one; the printed circuit board is arranged between the limiting tubes I and the limiting tubes II, the bottom end of the printed circuit board is in contact with the limiting tubes I, and the top end of the printed circuit board is in contact with the limiting tubes II. This design allows the printed circuit board to be arranged between the limiting tubes I and the limiting tubes II, and the bottom end of the printed circuit board to be in contact with the limiting tubes I and the top end of the printed circuit board to be in contact with the limiting tubes II, so that the printed circuit board is clamped by the limiting tubes I and the limiting tubes II, and the preliminary limiting of the printed circuit board is achieved. The left and right symmetric distribution of the limiting tubes I and the limiting tubes II can avoid the left and right shaking of the printed circuit board, thereby avoiding the disengagement of the limiting.
[0012] Preferably, the printed circuit board is provided with a plurality of connection wire holes, each of which is provided with a label. The connection wire holes correspond to the connection wires one by one, and the connection wires pass through the connection wire holes to be electrically connected to the plug. This design provides a plurality of connection wire holes on the printed circuit board, and the connection wire holes are provided with labels. The labels can be marked as N, E, and L, which represent the neutral wire, the ground wire, and the live wire. In this way, the corresponding neutral wire, the ground wire, and the live wire can be passed through the connection wire holes respectively to ensure good electrical connection. Then, when the light-emitting diode does not light up, it can be immediately known which circuit has a problem, and the circuit can be inspected or repaired immediately.
[0013] Preferably, the top cover is provided with a switch hole, a switch is mounted on the printed circuit board, the switch is positioned at the front end of the printed circuit board, the bottom end of the switch is electrically connected to the printed circuit board, and the top end of the switch passes through the switch hole and is positioned at the outer end of the cavity. The bottom cover is provided with a screw slot, a screw hole is provided at the rear end of the printed circuit board, a screw is mounted in the screw hole, the screw has a third thread, and both the screw hole and the screw slot have fourth threads, which mate with the third thread. This design, by providing the switch hole in the top cover and mounting the switch on the printed circuit board, with the switch positioned at the front end of the printed circuit board, the bottom end electrically connected to the printed circuit board, and the top end passing through the switch hole and positioned at the outer end of the cavity, allows for smooth control of the switch from the outer end of the cavity to control the plug's on / off operation. The bottom cover is provided with a screw slot, a screw hole is provided at the rear end of the printed circuit board, a screw is mounted in the screw hole, the screw has a third thread, and both the screw hole and the screw slot have fourth threads, which mate with the third thread, allowing for direct control of the screw's rotation. The cooperation of the third and fourth threads secures the connection between the printed circuit board and the bottom cover.
[0014] The beneficial effects of the utility model are: achieving the purpose of installing a component that can detect faults in time; facilitating the installation and disassembly of the top cover, the bottom cover, the printed circuit board and the mounting seat; and having the limiting effect of the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 It is a structural diagram of the bottom cover of the utility model;
[0017] Figure 3 This is a schematic diagram of the distribution of the light emitting diodes of the present utility model;
[0018] Figure 4 It is a distribution diagram of the second limiting tube of the utility model.
[0019] In the figure: 1. Mounting base, 2. Cavity, 3. Printed circuit board, 4. Insert, 5. Top cover, 6. Bottom cover, 7. Limiting tube 1, 8. Thumb screw, 9. Hole for connecting wires, 10. Switch hole, 11. Switch, 12. Screw, 13. Prompt hole, 14. Light-emitting diode, 15. Limiting tube 2. DETAILED DESCRIPTION
[0020] The utility model is further described below with reference to the accompanying drawings and specific implementation methods.
[0021] like Figure 1 、 Figure 2 and Figure 3 In the embodiment shown, a test plug includes a mounting base 1 and several inserts 4. The mounting base 1 is provided with a cavity 2. A top cover 5, a bottom cover 6 and a printed circuit board 3 are installed on the mounting base 1. The top cover 5 is placed at the top of the cavity 2, the bottom cover 6 is placed at the bottom of the cavity 2, and the printed circuit board 3 is placed in the cavity 2. The top cover 5, the bottom cover 6 and the printed circuit board 3 are all detachably connected to the mounting base 1. One end of the insert 4 is placed at the outer end of the mounting base 1, and the other end of the insert 4 passes through the mounting base 1 and is placed in the cavity 2. The top cover 5 is provided with several prompt holes 13, several The prompt holes 13 are evenly distributed, and connecting wires and light-emitting diodes 14 are installed on the printed circuit board 3. There are several connecting wires and light-emitting diodes 14. The connecting wires correspond to the plug-in pieces 4 one-to-one, and the light-emitting diodes 14 correspond to the connecting wires one-to-one. One end of the connecting wire is electrically connected to the plug-in piece 4, and the other end of the connecting wire is electrically connected to the light-emitting diode 14. The bottom end of the light-emitting diode 14 is connected to the printed circuit board 3, and the top end of the light-emitting diode 14 passes through the prompt hole 13 and is placed at the outer end of the mounting base 1. The prompt hole 13 corresponds to the light-emitting diode 14 one-to-one.
[0022] like Figure 1 、 Figure 3 and Figure 4As shown, the bottom cover 6 is mounted with several position limiting tubes 7, symmetrically distributed on the left and right ends of the cavity 2. The top cover 5 is mounted with several position limiting tubes 15, corresponding one-to-one with each of the position limiting tubes 17. The printed circuit board 3 is placed between the position limiting tubes 17 and 15, with the bottom end of the printed circuit board 3 contacting the position limiting tube 7 and the top end of the printed circuit board 3 contacting the position limiting tube 15. A thumb screw 8 is mounted on the position limiting tube 15, with a first thread on the thumb screw 8. Both the position limiting tube 15 and the position limiting tube 7 are equipped with a second thread, which matches the first thread. The distance between the left and right ends of the printed circuit board 3 is equal to the distance between the thumb screws 8 at the corresponding positions. The printed circuit board 3 is equipped with several connection holes 9, each with a label. The connection holes 9 correspond one-to-one with the connection wires, and the connection wires pass through the connection holes 9 to be electrically connected to the plug 4. A switch hole 10 is provided on the top cover 5, and a switch 11 is mounted on the printed circuit board 3. The switch 11 is placed at the front end of the printed circuit board 3, and the bottom end of the switch 11 is electrically connected to the printed circuit board 3. The top end of the switch 11 passes through the switch hole 10 and is placed at the outer end of the cavity 2. A screw groove is provided on the bottom cover 6, and a screw hole is provided at the rear end of the printed circuit board 3. A screw 12 is mounted at the screw hole. The screw 12 is provided with a third thread, and a fourth thread is provided in the screw hole and the screw groove, and the fourth thread matches the third thread.
[0023] First, the printed circuit board 3 is installed. This printed circuit board 3 is not only provided with connecting wire holes 9 and screw holes, but also installed with connecting wires, light-emitting diodes 14 and switches 11. The connecting wire holes 9, connecting wires and light-emitting diodes 14 here all include a plurality of them, and the connecting wires correspond to the connecting wire holes 9 one-to-one, and the light-emitting diodes 14 correspond to the connecting wires one-to-one. Generally speaking, the live wire, neutral wire and ground wire are installed on the plug, that is, the specific positions of the live wire, neutral wire and ground wire can be indicated by the markings N, E and L, that is, N represents the neutral wire, L represents the ground wire and E represents the live wire, then the live wire, neutral wire and ground wire can pass through the corresponding connecting wire holes 9 and be electrically connected to the plug 4 respectively, and the light-emitting diodes 14 are electrically connected to the corresponding connecting wires. Of course, the plug 4 here has one end placed on the outer end of the mounting base 1, and the other end passes through the mounting base 1 and is placed in the cavity 2 so as to make electrical connections with the connecting wires.
[0024] Then the placement of the printed circuit board 3 is needed, which is placed in the cavity 2 of the mounting seat 1. When placing the printed circuit board 3, the bottom cover 6 of the top cover 5 needs to be connected and installed. The top cover 5 is placed at the top end of the cavity 2, and the bottom cover 6 is placed at the bottom end of the cavity 2. A plurality of limiting tubes one 7 are installed on the bottom cover 6, which are symmetrically distributed on the left and right ends of the cavity 2. A plurality of limiting tubes two 15 are installed on the top cover 5, which correspond to the limiting tubes one 7 one by one. The printed circuit board 3 is placed between the limiting tubes one 7 and the limiting tubes two 15, so that the bottom end of the printed circuit board 3 is in contact with the limiting tubes one 7, and the top end is in contact with the limiting tubes two 15. In this way, the printed circuit board 3 is clamped by the limiting tubes one 7 and the limiting tubes two 15. Furthermore, screw grooves are provided on the bottom cover 6, and screw holes are provided at the rear end of the printed circuit board 3. Screws 12 are installed in the screw holes, and screw threads three are provided on the screws 12. Screw threads four are provided in the screw holes and the screw grooves, which match the screw threads three. Then the screws 12 need to be rotated, and the printed circuit board 3 and the bottom cover 6 are limited and connected under the cooperation of the screw threads three and the screw threads four. The switch hole 10 is provided on the top cover 5, and the switch 11 is installed on the printed circuit board 3. The switch 11 is placed at the front end of the printed circuit board 3, and the bottom end of the switch 11 is electrically connected with the printed circuit board 3. The top end of the switch 11 can pass through the switch hole 10 and be placed at the outer end of the cavity 2. In this way, the limiting work of the printed circuit board 3 and the top cover 5 is completed, so that the front and rear ends of the printed circuit board 3 are limited, and the printed circuit board 3 can be operated under the control of the switch 11. Generally, the switch 11 directly controls the switch of the connection wire through which the current flows. Finally, the rotation of the large head screw 8 is controlled, and the screw threads one on the large head screw 8 cooperate with the screw threads two on the limiting tubes two 15 and the limiting tubes one 7, so that the top cover 5 and the bottom cover 6 are connected and installed. In this way, the printed circuit board 3 is placed in the cavity 2 by the top cover 5, the bottom cover 6 and the mounting seat 1, so as to reduce the probability of being damaged by external objects.
[0025] When the test plug is used, under the cooperation of phase sequence and GFCI, the switch 11 is controlled to be turned on. The light-emitting diode 14 installed at the prompt hole 13 of the top cover 5 will produce light. If there is a fault, the light-emitting diode 14 will stop emitting light, which means that the switch 11 needs to be controlled to be turned off immediately, and the connection wire corresponding to the light-emitting diode 14 giving instructions needs to be checked or repaired. The work of the light-emitting diode 14 cooperates with the tab 4 and the connection wire to achieve the purpose of installing components that can detect faults in time. In order to make the checking and repairing work more convenient, the prompt hole 13 can also be marked to represent the live wire, the neutral wire and the ground wire.
Claims
1. A test plug, characterized in that: The invention comprises a mounting base (1) and a plurality of inserts (4), wherein the mounting base (1) is provided with a cavity (2), and a top cover (5), a bottom cover (6) and a printed circuit board (3) are installed on the mounting base (1), wherein the top cover (5) is placed at the top of the cavity (2), the bottom cover (6) is placed at the bottom of the cavity (2), and the printed circuit board (3) is placed in the cavity (2), and the top cover (5), the bottom cover (6) and the printed circuit board (3) are all detachably connected to the mounting base (1), one end of the insert (4) is placed at the outer end of the mounting base (1), and the other end of the insert (4) passes through the mounting base (1) and is placed in the cavity (2), and the top cover (5) is provided with a plurality of prompt holes (13). If The prompt holes (13) are evenly distributed. Connecting wires and light-emitting diodes (14) are installed on the printed circuit board (3). The connecting wires and light-emitting diodes (14) each include a plurality of them. The connecting wires correspond to the plugs (4) one-to-one, and the light-emitting diodes (14) correspond to the connecting wires one-to-one. One end of the connecting wire is electrically connected to the plug (4), and the other end of the connecting wire is electrically connected to the light-emitting diode (14). The bottom end of the light-emitting diode (14) is connected to the printed circuit board (3), and the top end of the light-emitting diode (14) passes through the prompt hole (13) and is placed at the outer end of the mounting base (1). The prompt hole (13) corresponds to the light-emitting diode (14) one-to-one.
2. A test plug according to claim 1, characterized in that: The bottom cover (6) is provided with a plurality of position limiting tubes (7), which are symmetrically distributed at the left and right ends of the cavity (2). The top cover (5) is provided with a plurality of position limiting tubes (15), which correspond one to one with the position limiting tubes (7). The printed circuit board (3) is placed between the position limiting tubes (7) and the position limiting tubes (15). The bottom end of the printed circuit board (3) contacts the position limiting tubes (7), and the top end of the printed circuit board (3) contacts the position limiting tubes (15).
3. A test plug according to claim 2, characterized in that: A thumb screw (8) is installed on the second limiting tube (15), and a first thread is provided on the thumb screw (8). The second limiting tube (15) and the first limiting tube (7) are both provided with a second thread, and the second thread matches the first thread.
4. A test plug according to claim 3, characterized in that: The distance between the left and right ends of the printed circuit board (3) is equal to the distance between the thumb screws (8) corresponding to the left and right positions of the printed circuit board (3).
5. The test plug according to claim 1, wherein: The printed circuit board (3) is provided with a plurality of connection wire holes (9), each of which is provided with a label. The connection wire holes (9) correspond to the connection wires one by one, and the connection wires pass through the connection wire holes (9) and are electrically connected to the plug (4).
6. The test plug according to claim 1, wherein: The top cover (5) is provided with a switch hole (10), the printed circuit board (3) is provided with a switch (11), the switch (11) is placed at the front end of the printed circuit board (3), the bottom end of the switch (11) is electrically connected to the printed circuit board (3), the top end of the switch (11) passes through the switch hole (10) and is placed at the outer end of the cavity (2), the bottom cover (6) is provided with a screw slot, the rear end of the printed circuit board (3) is provided with a screw hole, a screw (12) is installed at the screw hole, the screw (12) is provided with a third thread, the screw hole and the screw slot are both provided with a fourth thread, the fourth thread matches the third thread.