High-temperature-resistant plug

Abstract

The utility model discloses a high-temperature-resistant plug. The high-temperature-resistant plug comprises a shell; the circuit board is arranged in the shell, one side of the circuit board is fixedly connected with a pin seat, one side of the pin seat is fixedly connected with a flat plug, and the end part of the flat plug penetrates out of the bottom of the shell; the gasket assembly is arranged on the outer side of the flat plug in a sleeving manner; the shell and the pin gasket are made of PBT materials, the heat-resistant temperature is 180-200 DEG C, the cost and the structural stability are both considered, and the high-temperature environment is adapted; the gap between the flat plug bottom shells is filled with the flat plug core, the flat plug core forms a heat insulation layer between the flat plug bottom shells, the heat conduction efficiency is reduced, and the overall heat resistance is improved. The plug pin sealing silica gel pad is in interference fit and tightly attached to the flat plug, water is prevented from permeating along the plug pin, the sealing strip is extruded at the joint of the face shell and the bottom shell, a second waterproof barrier is formed, and the sealing performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of plug technology, specifically a high-temperature resistant plug. Background Technology

[0002] A plug typically consists of metal contacts, an insulating shell, and connecting wires. The metal contacts are responsible for contacting the metal prongs in the socket to conduct current; the insulating shell provides protection against electric shock and prevents short circuits between internal metal components and other objects; the connecting wires connect the plug to the internal circuitry of the electrical appliance, allowing current to flow smoothly into and out of the device. During use, especially under high loads, the prongs of existing plugs can become extremely hot. Because the prongs are in direct contact with the shell, heat is transferred to the shell, causing its temperature to rise. Excessive heat can lead to deformation or burning of the shell material, or even cause fires and other safety hazards. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature resistant plug to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant plug, comprising:

[0005] case;

[0006] A circuit board is placed inside the housing. A pin socket is fixed to one side of the circuit board, and a flat plug is fixed to one side of the pin socket. The end of the flat plug protrudes from the bottom of the housing.

[0007] A gasket assembly is fitted onto the outside of the flat plug. The gasket assembly includes a pin gasket, a pin sealing silicone gasket for sealing, and a flat plug core arranged sequentially in the direction away from the pin socket. The flat plug core has a partition hole in the middle that is interference-fitted with the flat plug to position the flat plug and prevent the flat plug from contacting the housing.

[0008] Preferably, the housing includes a front shell and a bottom shell, the bottom shell has a through hole in the middle for installing and positioning the flat plug core, the front shell and the bottom shell are connected by screws, and a silicone sealing strip is installed at the connection between the front shell and the bottom shell.

[0009] Preferably, the circuit board includes a first circuit board and a second circuit board, the first circuit board and the second circuit board are fixedly connected, the first circuit board is fixedly connected to the bottom shell by screws, and the pin socket is fixedly connected to the second circuit board.

[0010] Preferably, an indicator light board is fixedly connected to the side of the circuit board one that is opposite to the circuit board two. A button that is electrically connected to the circuit board one is provided on the outer side of the indicator light board. A button cover that cooperates with the button is installed on the outer side of the indicator light board. The button cover extends out from the middle of the faceplate.

[0011] Preferably, the flat plug includes a ground flat plug and two power flat plugs fixed to the socket, with the ground flat plug and the two power flat plugs arranged in a triangular structure.

[0012] Preferably, the outer side of the circuit board is electrically connected to a power cord end holder, and an O-ring that mates with the housing is fitted on the outer side of the power cord end holder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The flat plug core is made of PPS material, which has a heat resistance temperature of 250-280℃. It directly wraps around the flat plug, blocking heat conduction to the shell. The flat plug core fills the gap between the flat plug and the bottom shell, forming a heat insulation layer between the flat plug and the bottom shell, reducing heat conduction efficiency and improving overall heat resistance. The shell and the pin gasket are made of PBT material, which has a heat resistance temperature of 180-200℃, balancing cost and structural stability, and adapting to high-temperature environments. The pin sealing silicone gasket is interference-fitted, tightly fitting the flat plug and preventing moisture from seeping in along the pins. The sealing strip is squeezed at the connection between the top shell and the bottom shell, forming a second waterproof barrier and increasing its sealing performance. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the flat plug core of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the flat plug core and the bottom shell after assembly.

[0017] Figure 4 This is a schematic diagram of the circuit board structure of this utility model.

[0018] In the diagram: 1. Front cover; 2. Silicone sealing strip; 3. Button cover; 4. Indicator light board; 5. Circuit board one; 6. Circuit board two; 7. Pin socket; 8. Ground flat plug; 9. Power flat plug; 10. O-ring; 11. Power cord end holder; 12. Pin gasket; 13. Pin sealing silicone gasket; 14. Flat plug plug; 15. Bottom cover; 16. Screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , 2 As shown in Figures 3 and 4, this utility model provides a technical solution: a high-temperature resistant plug, comprising: a housing; a circuit board placed inside the housing, a pin seat 7 fixedly connected to one side of the circuit board, a flat plug fixedly connected to one side of the pin seat 7, the end of the flat plug protruding from the bottom of the housing; a gasket assembly sleeved on the outside of the flat plug, the gasket assembly being provided with a pin gasket 12, a pin sealing silicone gasket 13 for sealing and a flat plug core 14 arranged sequentially along the direction away from the pin seat 7, the flat plug core 14 having a partition hole in the middle that is interference-fitted with the flat plug, for positioning the flat plug and preventing the flat plug from contacting the housing.

[0021] It should be noted that in this embodiment, the pin gasket 12 positions the flat plug, and the pin sealing silicone gasket 13 is interference-fitted with the flat plug. The pin sealing silicone gasket 13 achieves a sealing effect, preventing water from entering the housing along the flat plug. The pin sealing silicone gasket 13 is fitted and fixed to the flat plug core 14. The flat plug is installed in the partition hole of the flat plug core 14. The flat plug core 14 is made of PPS material, and its heat resistance temperature can reach 250-280 degrees. The partition hole and the flat plug are interference-fitted. One end of the flat plug core 14 is embedded in the housing, thereby separating the flat plug from the housing. The hole in the housing that mates with the flat plug core 14 is 0.3-0.35mm larger than the diameter of the partition hole. The flat plug core 14 fills this gap. The purpose of this gap is to prevent the temperature of the flat plug from being directly transferred to the housing during use, thereby increasing the heat resistance temperature of the entire plug component.

[0022] In one embodiment, the housing includes a front shell 1 and a bottom shell 15. The bottom shell 15 has a through hole in the middle for installing and positioning the flat plug core 14. The front shell 1 and the bottom shell 15 are connected by screws 16, and a silicone sealing strip 2 is installed at the connection between the front shell 1 and the bottom shell 15.

[0023] It should be noted that in this embodiment, the end of the positioning flat plug core 14 is inserted into the through hole of the bottom shell 15 to prevent the flat plug from directly contacting the bottom shell 15. The face shell 1, the bottom shell 15, and the plug pad 12 are all made of PBT material, which can withstand a heat temperature of 180-200 degrees. The face shell 1 and the bottom shell 15 are fixedly connected by screws 16. Under the pressure of the silicone sealing strip 2, the mating point can be sealed.

[0024] In one embodiment, the circuit board includes a first circuit board 5 and a second circuit board 6. The first circuit board 5 and the second circuit board 6 are fixedly connected. The first circuit board 5 is fixedly connected to the bottom shell 15 by screws. The pin socket 7 is fixedly connected to the second circuit board 6. An indicator light board 4 is fixedly connected to the side of the first circuit board 5 away from the second circuit board 6. A button that is electrically connected to the first circuit board 5 is provided on the outside of the indicator light board 4. A button sleeve 3 that cooperates with the button is installed on the outside of the indicator light board 4. The button sleeve 3 extends out from the middle of the front shell 1.

[0025] It should be noted that in this embodiment, circuit board 2 (6) is a power processing board with load control on / off output function and filtering circuit, while circuit board 1 (5) is a control board with switching circuit, signal processing module, and LED indicator driver circuit. The socket 7 is fixed to circuit board 2 (6) and is responsible for connecting to the external socket and transmitting current to the internal circuit. Circuit board 2 (6) is responsible for power processing and protection circuits. Circuit board 1 (5) is responsible for control circuits and signal processing, providing switching operation and status indication functions. The indicator light board 4 is fixed on the side of circuit board 1 (5) away from circuit board 2 (6) and is used to display power or operating status. The button 3 is located on the outside of the indicator light board and is electrically connected to circuit board 1 (5). The button can be used to control the switch. The button cover 3 protects the button and extends from the middle of the cover 1 for easy operation.

[0026] In one embodiment, the flat plug includes a ground flat plug 8 and two power flat plugs 9 fixed to the pin socket 7, with the ground flat plug 8 and the two power flat plugs 9 arranged in a triangular structure.

[0027] It should be noted that in this embodiment, the socket connects the power supply to the circuit board. Socket 7 is responsible for transmitting external power to the internal circuit and also secures the ground wire and power pins. The ground flat plug 8 is a pin used to connect the ground wire, providing grounding protection for electrical equipment. The power flat plug 9 has two power pins used to transmit power to the circuit equipment. It is responsible for transmitting current to ensure the normal operation of the equipment. The ground flat plug 8 and the two power flat plugs 9 form a triangular structure to ensure the stability of plug insertion and the balance of power transmission. The triangular structure can effectively reduce the possibility of loosening of the plug in the socket and optimize the current transmission path.

[0028] In one embodiment, the outer side of the circuit board 5 is electrically connected to a power cord end holder 11, and an O-ring rubber ring 10 that mates with the housing is sleeved on the outer side of the power cord end holder 11.

[0029] It should be noted that in this embodiment, the power cord end holder is responsible for electrically connecting the power cord to the circuit board 5. The O-ring 10 is fitted onto the outside of the power cord end holder 11, serving a sealing and protective function. It works in conjunction with the housing to provide waterproofing, dustproofing, and leakage protection. This ensures that the plug is not affected by external environmental factors such as moisture and dust during use, improving the plug's durability and safety.

[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant plug, characterized in that: include: case; The circuit board is placed inside the housing. A pin socket (7) is fixed to one side of the circuit board. A flat plug is fixed to one side of the pin socket (7). The end of the flat plug protrudes from the bottom of the housing. The gasket assembly is sleeved on the outside of the flat plug. The gasket assembly is provided with a pin gasket (12), a pin sealing silicone gasket (13) for sealing and a flat plug core (14) in sequence along the direction away from the pin base (7). The flat plug core (14) has a partition hole in the middle that is interference fit with the flat plug, which is used to position the flat plug and prevent the flat plug from contacting the housing.

2. The high-temperature resistant plug according to claim 1, characterized in that: The housing includes a front shell (1) and a bottom shell (15). The bottom shell (15) has a through hole in the middle for installing and positioning the flat plug core (14). The front shell (1) and the bottom shell (15) are connected by screws (16). A silicone sealing strip (2) is installed at the connection between the front shell (1) and the bottom shell (15).

3. A high-temperature resistant plug according to claim 1, characterized in that: The circuit board includes a first circuit board (5) and a second circuit board (6). The first circuit board (5) and the second circuit board (6) are fixedly connected. The first circuit board (5) is fixedly connected to the bottom shell (15) by screws. The pin socket (7) is fixedly connected to the second circuit board (6).

4. A high-temperature resistant plug according to claim 3, characterized in that: An indicator light board (4) is fixedly connected to the side of the circuit board one (5) away from the circuit board two (6). A button that is electrically connected to the circuit board one (5) is provided on the outside of the indicator light board (4). A button cover (3) that cooperates with the button is installed on the outside of the indicator light board (4). The button cover (3) extends out from the middle of the face shell (1).

5. A high-temperature resistant plug according to claim 4, characterized in that: The flat plug includes a ground flat plug (8) and two power flat plugs (9) fixed on the plug socket (7), and the ground flat plug (8) and the two power flat plugs (9) are distributed in a triangular structure.

6. A high-temperature resistant plug according to claim 5, characterized in that: The circuit board 1 (5) is electrically connected to a power cord end holder (11) on its outer side, and an O-ring (10) that mates with the housing is fitted on the outer side of the power cord end holder (11).

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