Plug with overload, short circuit and electric leakage protection

Abstract

The utility model relates to a plug with overload, short circuit and electric leakage protection, which comprises a shell, an access port is arranged in the shell, and the access port comprises an N-pole end, a ground wire end and an L-pole end; the overload and short circuit protection mechanism is arranged on the shell; the access mechanism is correspondingly connected with the N-pole end, the ground wire end and the L-pole end, and the access mechanism is connected with a power supply line of the to-be-protected electric appliance; the plug mechanism is connected with an external power supply, and the N pole, the ground wire and the L pole of the plug mechanism are correspondingly connected with the N pole end, the ground wire end and the L pole end of the access port respectively; the L pole end is electrically connected with the L pole of the plug mechanism through the overload and short circuit protection mechanism. The beneficial effects of the utility model are that the plug has the functions of leakage protection and overload and short circuit protection, and the safety of the plug is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliance protection, in particular to a plug with overload, short circuit and leakage protection. Background Art

[0002] At present, there are many kinds of plugs with leakage protection on the market, which are mainly divided into two categories: leakage protection plugs with sockets (such as China Patent 2015104033649 leakage protection plug socket protection device) and leakage protection plugs without sockets (such as China Patent 2022211569406 a leakage protection plug mechanism). The leakage protection plug with a socket is connected to the plug of an external electrical appliance through a socket arranged on the front side, and the leakage protection plug without a socket is connected to the external electrical appliance through a wiring terminal.

[0003] There are two types of leakage protection plugs with sockets: those with extension cords and those without extension cords. Among them, the leakage protection plugs with sockets without extension cords often have the sockets and plugs symmetrically arranged on the front and rear sides of the leakage protection plug body. When in use, the rear plug is plugged into the wall socket, and the electrical plug is plugged into the socket of the leakage protection plug, thereby protecting the electrical appliance from leakage. This design simplifies the structure, reduces the use of wires, avoids the bending and damage of wires and the leakage protection plug hanging on the plug, and improves the safety of the leakage protection plug.

[0004] However, the current leakage protection plug only has the function of leakage protection and cannot provide protection for other situations, such as overload or short circuit, and is not safe enough. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a plug with overload, short circuit and leakage protection to solve the above problems.

[0006] The technical solution of the utility model is implemented as follows: a plug with overload, short circuit and leakage protection, comprising:

[0007] A housing, wherein an access port is provided in the housing, and the access port includes an N terminal, a ground terminal, and an L terminal;

[0008] An overload and short circuit protection mechanism, wherein the overload and short circuit protection mechanism is arranged on the housing;

[0009] An access mechanism, the access mechanism is respectively connected to the N terminal, the ground terminal, and the L terminal, and the access mechanism is connected to the power supply line of the electrical appliance to be protected;

[0010] A plug mechanism, the plug mechanism is connected to an external power supply, and the N pole, ground wire, and L pole of the plug mechanism are respectively connected to the N pole, ground wire, and L pole of the access port;

[0011] Wherein, the L pole is electrically connected to the L pole of the plug mechanism through an overload and short circuit protection mechanism.

[0012] By adopting the above technical solution, the L-pole circuit passes through the overload and short-circuit protection mechanism, so that when the circuit is overloaded or short-circuited, the overload and short-circuit protection mechanism can be activated in time, so that the plug has overload and short-circuit protection functions, effectively improving the safety of the plug.

[0013] The utility model is further configured to include:

[0014] A leakage protection mechanism, the leakage protection mechanism is arranged in the housing, and the leakage protection mechanism is electrically connected between the access port and the plug mechanism;

[0015] The N terminal is connected to the leakage protection mechanism through a first wire, the L terminal is connected to one end of the overload and short circuit protection mechanism through a second wire, and the other end of the overload and short circuit protection mechanism is connected to the leakage protection mechanism through a third wire.

[0016] By adopting the above technical solution, the overload and short-circuit protection mechanism can be effectively connected with the leakage protection mechanism, so that the plug has leakage protection as well as overload and short-circuit protection functions, effectively improving the safety of the plug.

[0017] The utility model is further configured as follows: the access mechanism is configured as a wiring terminal or a socket, and when the access mechanism is a socket, a plug hole is provided on the front side of the shell.

[0018] By adopting the above technical solution, different access mechanism forms can be adopted according to different needs. When a wiring terminal is used, the wiring terminal is connected to the N terminal, the ground terminal, and the L terminal accordingly, and the power supply line of the electrical appliance to be protected is connected to the wiring terminal accordingly, thereby completing the connection; when a socket is used, the socket is connected to the N terminal, the ground terminal, and the L terminal accordingly, and the connection can be completed by directly inserting the plug of the electrical appliance to be protected into the jack and connecting it to the socket.

[0019] The utility model is further configured as follows: the overload and short circuit protection mechanism is configured as a circuit breaker.

[0020] By adopting the above technical solution, the circuit breaker can effectively provide overload and short circuit protection in an efficient and simple manner.

[0021] The utility model is further configured as follows: the overload and short-circuit protection mechanism is a plug-in circuit breaker, the housing is provided with a base for plugging the plug-in circuit breaker, and when the plug-in circuit breaker is inserted into the base, two pins of the plug-in circuit breaker are respectively connected to the second wire and the third wire.

[0022] By adopting the above technical solution, users can choose to replace plug-in circuit breakers with different rated currents according to the size of the power consumption during use. The disassembly and assembly of the plug-in circuit breaker are very convenient. The pins of the plug-in circuit breaker are connected to the second wire and the third wire through the base, and the connection is stable.

[0023] The utility model is further configured as follows: the plug mechanism is configured as a triangular plug, and the ground wire end is connected to the ground wire of the plug mechanism.

[0024] By adopting the above technical solution, the plug mechanism is plugged into a wall socket for connection.

[0025] The utility model is further configured as follows: the plug mechanism is configured as a direct plug type, and the plug mechanism is fixed on the rear side of the shell and extends out of the shell.

[0026] By adopting the above technical solution, the plug mechanism and the shell are integrally arranged, and the structure is compact.

[0027] The utility model is further configured as follows: the plug mechanism is configured as a long-head split type, and the plug mechanism is connected to the leakage protection mechanism in the shell through an extended wire.

[0028] By adopting the above technical solution, the plug mechanism is connected to the plug body through the extension wire, and the plug mechanism connected through the extension wire is more convenient and flexible to use.

[0029] The utility model is further configured as follows: a mutual inductor coil is arranged in the shell, and the first wire and the third wire pass through the mutual inductor coil.

[0030] By adopting the above technical solution, the transformer coil can effectively detect the leakage of the L pole and the N pole, and then disconnect them through the leakage protection mechanism.

[0031] The utility model is further configured to include:

[0032] A remote control module is used to receive instructions from a remote control device and control the on and off of a plug with overload, short circuit and leakage protection.

[0033] By adopting the above technical solution, the on and off of the plug can be remotely controlled through the remote control module, making it more convenient to use. The user can also understand the operation status of the plug in real time, and when the plug fails or moves, it will be reflected to the user in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0036] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0037] Figure 3 This is a schematic diagram of the structure of the overload and short-circuit protection mechanisms of the utility model when they are separated;

[0038] Figure 4 The internal structure of the utility model is shown in FIG. Figure 1 ;

[0039] Figure 5 The internal structure of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] like Figure 1-Figure 5 As shown, the utility model discloses a plug with overload, short circuit and leakage protection, comprising:

[0042] A housing 1, wherein an access port is provided in the housing 1, and the access port includes an N terminal, a ground terminal, and an L terminal;

[0043] An overload and short circuit protection mechanism 3, wherein the overload and short circuit protection mechanism 3 is arranged on the housing 1;

[0044] An access mechanism, the access mechanism is respectively connected to the N terminal, the ground terminal, and the L terminal, and the access mechanism is connected to the power supply line of the electrical appliance to be protected;

[0045] A plug mechanism 5, wherein the plug mechanism 5 is connected to an external power supply, and an N pole, a ground wire, and an L pole of the plug mechanism 5 are respectively connected to an N pole, a ground wire, and an L pole of the access port;

[0046] The L pole is electrically connected to the L pole of the plug mechanism 5 through the overload and short circuit protection mechanism 3 .

[0047] By adopting the above technical solution, the L-pole circuit passes through the overload and short-circuit protection mechanism 3, so that when the circuit is overloaded or short-circuited, the overload and short-circuit protection mechanism 3 can be activated in time, so that the plug has overload and short-circuit protection functions, and the safety of the plug is effectively improved.

[0048] In the embodiment of the utility model, it also includes:

[0049] A leakage protection mechanism 2, which is disposed in the housing 1 and is electrically connected between the access port and the plug mechanism 5;

[0050] The N terminal is connected to the leakage protection mechanism 2 through a first wire 10 , the L terminal is connected to one end of the overload and short circuit protection mechanism 3 through a second wire 11 , and the other end of the overload and short circuit protection mechanism 3 is connected to the leakage protection mechanism 2 through a third wire 12 .

[0051] By adopting the above technical solution, the overload and short circuit protection mechanism 3 can be effectively connected with the leakage protection mechanism 2, so that the plug has both leakage protection and overload and short circuit protection functions, which effectively improves the safety of the plug.

[0052] In the embodiment of the utility model, the access mechanism is configured as a wiring terminal or a socket. When the access mechanism is a socket, a plug hole is provided on the front side of the housing 1 .

[0053] By adopting the above technical solution, different access mechanism forms can be adopted according to different needs. When a wiring terminal is used, the wiring terminal is connected to the N terminal, the ground terminal, and the L terminal accordingly, and the power supply line of the electrical appliance to be protected is connected to the wiring terminal accordingly, thereby completing the connection; when a socket is used, the socket is connected to the N terminal, the ground terminal, and the L terminal accordingly, and the connection can be completed by directly inserting the plug of the electrical appliance to be protected into the jack and connecting it to the socket.

[0054] In the embodiment of the utility model, the overload and short circuit protection mechanism 3 is configured as a circuit breaker.

[0055] By adopting the above technical solution, the circuit breaker can effectively provide overload and short circuit protection in an efficient and simple manner.

[0056] In the embodiment of the utility model, the overload and short-circuit protection mechanism 3 is a plug-in circuit breaker, and the housing 1 is provided with a base 6 for plugging the plug-in circuit breaker. When the plug-in circuit breaker is inserted into the base 6, the two pins of the plug-in circuit breaker are respectively connected to the second wire 11 and the third wire 12.

[0057] By adopting the above technical solution, the user can choose to replace the plug-in circuit breaker with different rated current according to the size of the power consumption during use. The disassembly and assembly of the plug-in circuit breaker are very convenient. The pins of the plug-in circuit breaker are connected to the second wire 11 and the third wire 12 through the base 6, and the connection is stable.

[0058] In the embodiment of the utility model, the plug mechanism 5 is configured as a triangular plug, and the ground wire end is connected to the ground wire of the plug mechanism 5 .

[0059] By adopting the above technical solution, the plug mechanism 5 is plugged into the wall socket for connection.

[0060] In the embodiment of the present invention, the plug mechanism 5 is configured as a straight-plug type, and the plug mechanism 5 is fixed on the rear side of the housing 1 and extends out of the housing 1 .

[0061] By adopting the above technical solution, the plug mechanism 5 and the housing 1 are integrally arranged, and the structure is compact.

[0062] In the embodiment of the utility model, the plug mechanism 5 is configured as a long-head split type, and the plug mechanism 5 is connected to the leakage protection mechanism 2 in the housing 1 through an extension wire.

[0063] By adopting the above technical solution, the plug mechanism 5 is connected to the plug body through the extension wire, and the plug mechanism 5 connected through the extension wire is more convenient and flexible to use.

[0064] In the embodiment of the utility model, a mutual inductor coil 7 is disposed in the housing 1 , and the first conductive wire 10 and the third conductive wire 12 pass through the mutual inductor coil 7 .

[0065] By adopting the above technical solution, the mutual inductor coil 7 can effectively detect the leakage of the L pole and the N pole, and then disconnect them through the leakage protection mechanism 2.

[0066] In the embodiment of the utility model, it also includes:

[0067] A remote control module is used to receive instructions from a remote control device and control the on and off of a plug with overload, short circuit and leakage protection.

[0068] By adopting the above technical solution, the on and off of the plug can be remotely controlled through the remote control module, making it more convenient to use. The user can also understand the operation status of the plug in real time, and when the plug fails or moves, it will be reflected to the user in time.

[0069] Figure 1-Figure 4 The figure shows a plug with overload, short circuit and leakage protection when the access mechanism is set as a terminal block and the plug mechanism 5 is set as a direct plug-in type.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug with overload, short circuit and leakage protection, characterized in that: include, A housing (1), wherein an access port is provided in the housing (1), and the access port comprises an N terminal, a ground terminal, and an L terminal; An overload and short-circuit protection mechanism (3), wherein the overload and short-circuit protection mechanism (3) is arranged on the housing (1); An access mechanism, the access mechanism is respectively connected to the N terminal, the ground terminal, and the L terminal, and the access mechanism is connected to the power supply line of the electrical appliance to be protected; A plug mechanism (5), the plug mechanism (5) being connected to an external power supply, the N pole, the ground wire, and the L pole of the plug mechanism (5) being respectively connected to the N pole, the ground wire, and the L pole of the access port; The L pole is electrically connected to the L pole of the plug mechanism (5) via the overload and short circuit protection mechanism (3).

2. A plug with overload, short circuit and leakage protection according to claim 1, characterized in that: Also includes: A leakage protection mechanism (2), the leakage protection mechanism (2) being arranged in the housing (1), and the leakage protection mechanism (2) being electrically connected between the access port and the plug mechanism (5); The N terminal is connected to the leakage protection mechanism (2) via a first wire (10), the L terminal is connected to one end of the overload and short circuit protection mechanism (3) via a second wire (11), and the other end of the overload and short circuit protection mechanism (3) is connected to the leakage protection mechanism (2) via a third wire (12).

3. A plug with overload, short circuit and leakage protection according to claim 1, characterized in that: The access mechanism is configured as a connection terminal or a socket. When the access mechanism is a socket, a socket is provided on the front side of the housing (1).

4. A plug with overload, short circuit and leakage protection according to claim 1, characterized in that: The overload and short circuit protection mechanism (3) is configured as a circuit breaker.

5. A plug with overload, short circuit and leakage protection according to claim 1, characterized in that: The overload and short-circuit protection mechanism (3) is a plug-in circuit breaker. The housing (1) is provided with a base (6) for plugging the plug-in circuit breaker. When the plug-in circuit breaker is plugged into the base (6), two pins of the plug-in circuit breaker are respectively connected to a second wire (11) and a third wire (12).

6. A plug with overload, short circuit and leakage protection according to claim 1, characterized in that: The plug mechanism (5) is configured as a straight-plug type; the plug mechanism (5) is fixed on the rear side of the housing (1) and protrudes from the housing (1).

7. A plug with overload, short circuit and leakage protection according to claim 1, characterized in that: The plug mechanism (5) is of a long-head split type, and the plug mechanism (5) is connected to the leakage protection mechanism (2) in the housing (1) via an extended wire.

8. A plug with overload, short circuit and leakage protection according to claim 2, characterized in that: A mutual inductor coil (7) is arranged in the housing (1), and the first conductive wire (10) and the third conductive wire (12) pass through the mutual inductor coil (7).

9. A plug with overload, short circuit and leakage protection according to claim 1, characterized in that: Also includes: A remote control module is used to receive instructions from a remote control device and control the on and off of a plug with overload, short circuit and leakage protection.

Images