CN217468862U

CN217468862U - Power plug with cathode contacting first to prevent spark generation during insertion

Info

Publication number: CN217468862U
Application number: CN202220628654.9U
Authority: CN
Inventors: 易乃武
Original assignee: Shenzhen Younai'er Electronic Technology Co ltd
Current assignee: Shenzhen Younai'er Electronic Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-09-20
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a power plug of spark when negative pole elder generation contact prevention inserts belongs to the electric wire plug field. The utility model discloses a power plug of spark when inserting is prevented in earlier contact of negative pole, including shell body, power cord and inserted sheet, the one end of shell body is connected with the power cord, and the other end of shell body is connected with the inserted sheet, and the resistance box is installed to the inside intermediate position of shell body, and the inserted sheet passes the shell body and extends to the inside of resistance box with shell body connected's one end, and the electric conductor is installed to the inside one end that is located the power cord of shell body. The utility model provides a plug among the prior art do not have the problem of preventing electric spark when lieing in socket connection, the inserted sheet removes in embedding the electric conductor with the contact site, and whole process is accomplished at the resistance box, effectively suppresses the production of electric spark, reduces the emergence of incident, also does not have the burden in carelessness during the use, and the resistance cover prevents that the inserted sheet head from producing the electric spark, and the surface coating of inserted sheet has resistance coating, also can effectively avoid the production of electric spark.

Description

Power plug with cathode contacting first to prevent spark generation during insertion

Technical Field

The utility model relates to a power plug field especially relates to a power plug of spark when negative pole elder generation contact preventing inserting.

Background

A power plug refers to a device that connects a device such as an electrical appliance to a power source. Along with the continuous forward development and progress of society, various household appliances are used more and more, various appliances are basically used by connecting a plug of the appliance with a socket of a wall body, the socket in a building is basically embedded in the wall body, and a household alternating current power supply plug and the socket are provided with a male connector protruding in a rod shape or a copper plate shape and are physically inserted into a female connector type power supply socket with a slot or a concave hole. However, in the process of inserting the existing power plug, sometimes, the insertion sheet on the plug and the conducting sheet in the socket can generate electric sparks instantly when contacting, the main reason is that a large starting current exists, sparks can be generated at the contact point and heat can be generated, the sparks and the heat can disappear along with the stable contact of the plug and the socket contact, and the phenomenon of the electric sparks can often occur due to the frequent use of electric appliances when people use the power plug daily, and the electric sparks generated when the plug is inserted into the socket have certain negative effects, such as psychological pressure can be caused to users, more serious, fire disasters can occur when gas leaks indoors or combustible substances exist around the power plug, and even serious explosion accidents occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power plug of spark when negative pole elder generation contact prevents inserting possesses after the plug inserts the socket, avoids producing the characteristics of electric spark between inserted sheet and the conducting strip, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power plug of spark when negative pole elder generation contact is prevented inserting, includes shell body, power cord and inserted sheet, and the one end of shell body is connected with the power cord, and the other end of shell body is connected with the inserted sheet, and the resistance box is installed to the inside intermediate position of shell body, and the inserted sheet passes the shell body and extends to the inside of resistance box with shell body connected's one end, and the electric conductor is installed to the inside one end that is located the power cord of shell body.

Preferably, the power line passes through the outer shell and is connected with the electric conductor.

Preferably, the end of the inserting sheet extending to the interior of the resistance box is provided with a contact part, the contact part and the electric conductor are separated by an end distance, and the inserting sheet is connected with the electric conductor through the contact part.

Preferably, the heads of the inserting pieces are provided with resistance sleeves.

Preferably, the surface of the insert is coated with a resistive coating.

Preferably, a guide plate is installed inside the resistance box, a guide hole is formed in the guide plate, and the insertion piece penetrates through the guide hole and is movably connected with the guide plate.

Preferably, the upper portion of resistance box is equipped with the slot, and the slot setting is passed in the inside of resistance box to the one end of electric conductor, and the outer wall of electric conductor and the inner wall laminating of slot.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a power plug of spark is prevented producing when inserting by the first contact of negative pole, the one end that the inserted sheet extends to the resistance box inside is equipped with the contact site, one end of electric conductor passes the slot and sets up in the inside of resistance box, interval one end distance between contact site and the electric conductor, the inserted sheet passes through the contact site and is connected with the electric conductor, hold between the fingers the shell body and insert the plug in the socket, the inserted sheet can move along with it in the process of inserting, after the head contact of inserted sheet stops moving to the end, the inserted sheet then imbeds the contact site into the electric conductor, thereby accomplish the connection of inserted sheet and electric conductor, the whole process is accomplished in the resistance box, the resistance box belongs to airtight space and is made of resistance material, not only can effectively restrain the production of electric spark and avoid the electric spark to damage the plug, reduce the emergence of incident, and the electric spark produces in the resistance box, the user can't see, so that there is no psychological burden in inserting the plug.

2. The utility model discloses a power plug of spark when inserting is prevented in the first contact of negative pole, the head of inserted sheet all is provided with the resistance cover, when the contact of inserted sheet and socket internal contact, prevents that the head of inserted sheet from producing the electric spark, avoids the socket inside to be eroded and burns out, and the surface coating of inserted sheet has resistance paint, and resistance paint is for electrically conductive filler, base member resin, auxiliary agent to make, and the resistance paint coating that will make is on the inserted sheet on the surface, also can effectively avoid the production of electric spark.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection between the contact portion and the electrical conductor of the present invention;

FIG. 3 is a schematic view of the structure of the insert of the present invention;

fig. 4 is a schematic diagram of the structure of the resistance box of the present invention.

In the figure: 1. an outer housing; 2. a power line; 3. inserting sheets; 31. a contact portion; 32. a resistor sleeve; 33. resistance paint; 4. a resistance box; 41. a guide plate; 42. a slot; 5. an electrical conductor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a power plug with a negative electrode contacting first to prevent sparks from being generated during insertion comprises an outer shell 1, a power line 2 and an insertion sheet 3, wherein one end of the outer shell 1 is connected with the power line 2, the other end of the outer shell 1 is connected with the insertion sheet 3, a resistor box 4 is installed in the middle of the inner portion of the outer shell 1, one end of the insertion sheet 3 connected with the outer shell 1 penetrates through the outer shell 1 and extends to the inner portion of the resistor box 4, a conductor 5 is installed at one end of the inner portion of the outer shell 1, which is located at the power line 2, and the power line 2 penetrates through the outer shell 1 and is connected with the conductor 5.

Referring to fig. 2, a contact portion 31 is disposed at one end of the insertion piece 3 extending into the resistance box 4, a distance is formed between the contact portion 31 and the conductor 5, the distance prevents the insertion piece 3 from being in a state of not being electrified before being in undetermined contact with a socket, the insertion piece 3 is connected with the conductor 5 through the contact portion 31, the plug is inserted into the socket by pinching the outer shell 1, the insertion piece 3 moves along with the insertion process, and when the head of the insertion piece 3 is contacted to the bottom and stops moving, the insertion piece 3 embeds the contact portion 31 into the conductor 5, so that the connection between the insertion piece 3 and the conductor 5 is completed, and a normal electrifying state is realized.

Referring to fig. 3, the head of the insertion piece 3 is provided with a resistance sleeve 32, when the insertion piece 3 contacts with a contact inside the socket, the head of the insertion piece 3 is prevented from generating electric sparks, the inside of the socket is prevented from being corroded and burned out, the surface of the insertion piece 3 is coated with a resistance coating 33, the resistance coating 33 is made of a conductive filler, a matrix resin and an auxiliary agent, the conductive filler, the matrix resin and the auxiliary agent are mixed according to a proportion to prepare the resistance coating 33, and the prepared resistance coating 33 is coated on the surface of the insertion piece 3 and can also effectively prevent the electric sparks from being generated.

Referring to fig. 4, a guide plate 41 is installed inside a resistance box 4, the guide plate 41 is provided with a guide hole, the insertion piece 3 passes through the guide hole and is movably connected with the guide plate 41, when the insertion piece 3 moves, the guide plate 41 can accurately guide the moving direction of the insertion piece 3, the situation that the position of the insertion piece 3 moves is deviated and poor contact with a conductor 5 is avoided, the connection between the insertion piece 3 and the conductor 5 is more accurate, the normal use of an electric appliance is ensured, a slot 42 is arranged above the resistance box 4, one end of the conductor 5 passes through the slot 42 and is arranged inside the resistance box 4, the outer wall of the conductor 5 is attached to the inner wall of the slot 42, a contact part 31 is connected with the conductor 5, the whole process is completed in the resistance box 4, the resistance box 4 belongs to a closed space and is made of a resistance material, not only can effectively inhibit the generation of electric sparks and avoid the damage of the plug by the electric sparks, and reduce the occurrence of safety accidents, and the spark is generated in the resistance box 4 and cannot be seen by the user, so that there is no psychological burden when inserting the plug.

In summary, the following steps: the negative pole contacts the power plug which prevents sparks from being generated when the power plug is inserted, the plug is inserted into the socket by pinching the outer shell 1, the inserting sheet 3 moves along with the power plug in the inserting process, when the head of the inserting sheet 3 is contacted to the bottom and stops moving, the inserting sheet 3 embeds the contact part 31 into the electric conductor 5, the whole process is completed in the resistor box 4, the resistor box 4 belongs to a closed space and is made of a resistor material, the generation of electric sparks can be effectively inhibited, the plug is prevented from being damaged by the electric sparks, the safety accidents are reduced, the electric sparks are generated in the resistor box 4 and cannot be seen by a user, so that the head of the inserting sheet 3 is not burdened when the plug is inserted, meanwhile, the head of the inserting sheet 3 is provided with the resistor sleeve 32, when the inserting sheet 3 is contacted with the contact inside of the socket, the head of the inserting sheet 3 is prevented from generating the electric sparks, the inside of the socket is prevented from being corroded and burnt, and the surface of the inserting sheet 3 is coated with the resistor coating 33, the generation of electric sparks can be effectively avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a negative pole contacts earlier and prevents producing the power plug of spark when inserting, includes shell body (1), power cord (2) and inserted sheet (3), its characterized in that: the one end of shell body (1) is connected with power cord (2), and the other end of shell body (1) is connected with inserted sheet (3), and resistance box (4) are installed to the inside intermediate position of shell body (1), and the one end that inserted sheet (3) and shell body (1) are connected passes shell body (1) and extends to the inside of resistance box (4), and electric conductor (5) are installed to the inside one end that is located power cord (2) of shell body (1).

2. The negative-electrode-first-contact plug for preventing sparking during insertion of a power supply of claim 1, wherein: the power line (2) penetrates through the outer shell (1) and is connected with the conductor (5).

3. The power plug of claim 1, wherein the negative electrode first contacts to prevent spark when inserted, and the power plug further comprises: the inserted sheet (3) extend to one end of resistance box (4) inside and be equipped with contact site (31), and interval one end distance between contact site (31) and electric conductor (5), inserted sheet (3) are connected with electric conductor (5) through contact site (31).

4. The negative-electrode-first-contact plug for preventing sparking during insertion of a power supply of claim 1, wherein: the head of the inserting piece (3) is provided with a resistance sleeve (32).

5. The negative-electrode-first-contact plug for preventing sparking during insertion of a power supply of claim 1, wherein: the surface of the insert (3) is coated with a resistance coating (33).

6. The negative-electrode-first-contact plug for preventing sparking during insertion of a power supply of claim 1, wherein: the resistor box is characterized in that a guide plate (41) is installed inside the resistor box (4), a guide hole is formed in the guide plate (41), and the inserting piece (3) penetrates through the guide hole and is movably connected with the guide plate (41).

7. The negative-electrode-first-contact plug for preventing sparking during insertion of a power supply of claim 1, wherein: a slot (42) is formed in the upper portion of the resistor box (4), one end of the conductor (5) penetrates through the slot (42) and is arranged inside the resistor box (4), and the outer wall of the conductor (5) is attached to the inner wall of the slot (42).