CN217522300U - Arc-discharge-preventing direct-current socket and power connection equipment - Google Patents

Abstract

The utility model discloses a prevent drawing arc direct current socket and connect electrical equipment belongs to and connects electric safety technical field. The arc-pulling-proof direct current socket comprises a shell, an elastic conductive seat sheet and an insulation resistor, wherein the elastic conductive seat sheet is arranged in the shell; when the elastic conductive seat piece is in an electrically conductive state, the insulation resistor is separated from the elastic conductive seat piece; when the electric conduction state of the elastic conductive seat piece is finished, the insulation resistor is in contact conduction with the elastic conductive seat piece. The utility model discloses can prevent that the socket from producing electric arc at the plug in-process, avoid the emergence of incident, safe and reliable is stable durable.

Description

Arc-discharge-preventing direct-current socket and power connection equipment

Technical Field

The utility model belongs to the technical field of connect the electric safety, more specifically say, relate to a prevent drawing arc DC socket and connect electrical equipment.

Background

The socket is also called as a power socket and a switch socket. The socket is a socket into which one or more than one circuit connection wires can be inserted, various connection wires can be inserted through the socket, the socket can be conveniently connected with other circuits, the effect of connecting and disconnecting the partial circuits is achieved through connection and disconnection between the circuit and the copper piece, and the socket is an essential circuit connecting device when an electric appliance is connected with a power supply.

With the increasing awareness of the safety of electricity utilization, the requirements of people on the socket are higher and higher. In the process of plugging and unplugging, the common socket can generate electric arcs and even electric sparks at the moment of plugging and unplugging because the copper sheets are in electrified contact and separated. Taking a conventional guide rail socket as an example, when the conductive post is separated from the elastic conductive seat piece, the direct current will generate an electric arc (arcing phenomenon), which is very easy to cause electric shock accidents, and in specific occasions, such as places with flammable gases in the air, such as gas, oil gas, etc., a fire or even an explosion will occur, which is extremely dangerous.

Through retrieval, chinese patent application with application number CN202122940622.0, application date 2021, 11/25 discloses an arc-proof socket, comprising: mounting a base; the plug bush conductive assembly is arranged in the mounting base; the pressing plate is in press connection with the plug bush conductive assembly; and the magnetic part is inserted in the pressure plate and/or the mounting base and is arranged close to the plug bush component of the plug bush conductive component. According to the plug and socket, the magnetic part is arranged, when the contact assembly of the plug and socket conductive assembly is disconnected, an electric arc is generated, the generated electric arc is lengthened under the action of a magnetic field generated by the magnetic part, the electric arc voltage can be increased, and the electric arc can be extinguished when the electric arc voltage is higher than the power supply voltage of the plug and the socket, so that the conductive parts are prevented from being ablated by high temperature generated by the electric arc, the influence of the high temperature electric arc on the conductive parts is eliminated, the safety performance is improved, and the service life is prolonged; chinese patent application No. CN201810646640.8, having an application date of 2018, 06, 21, discloses an arc-proof socket and a power connection device, including: casing, trigger subassembly and connect electric subassembly. Trigger the subassembly and install in the casing, and can be for the casing motion, first butt wall and second butt wall set up back of the body mutually, and the combination forms the inserted hole that is used for the centre gripping inserted sheet, is provided with the holding mounting groove in the connecting wall, inserted hole and holding mounting groove intercommunication, trigger the one end of subassembly and stretch into the holding mounting groove, the other end with connect the electric subassembly interval setting. This application is owing to adopted the first butt wall and the second butt wall that carry on the back the other hand set up and stretched into the subassembly that triggers in the holding mounting groove, so need the inserted sheet to pass the inserted hole and will trigger the ejecting could the electric conduction of subassembly, prevent at plug in-process production electric arc, avoid the emergence of incident, safe and reliable is stable durable. However, the above applications all suffer from the following disadvantages: due to the complex structure, the device is difficult to manufacture and popularize and apply on a large scale.

In view of the above, it is important to design and manufacture an arc-proof socket with a simple structure and capable of preventing the generation of arc.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

To the problem that exists among the prior art, the utility model provides a prevent drawing arc direct current socket and connect electrical equipment, its simple structure, and can prevent that the socket from producing electric arc at the plug in-process, avoid the emergence of incident, safe and reliable, it is stable durable.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

Prevent drawing arc DC socket, DC socket includes the casing and sets up the electrically conductive seat piece of elasticity in the casing, its characterized in that: the insulating resistor is arranged in the shell and can move relative to the elastic conductive seat sheet; when the elastic conductive seat piece is in an electrically conductive state, the insulation resistor is separated from the elastic conductive seat piece; when the electric conduction state of the elastic conductive seat piece is finished, the insulation resistor is in contact conduction with the elastic conductive seat piece.

Preferably, the elastic conductive seat piece comprises a first electric connecting piece and a second electric connecting piece, the first electric connecting piece and the second electric connecting piece are arc-shaped pieces, concave surfaces of the first electric connecting piece and the second electric connecting piece are arranged oppositely, and are combined to form an insertion opening with larger openings at two ends and smaller opening in the middle.

Preferably, the connector further comprises a conductive sheet, one end of the conductive sheet is connected with the insulation resistor, and the other end of the conductive sheet can be inserted into the insertion hole of the elastic conductive seat sheet and is abutted against the elastic conductive seat sheet.

Preferably, a mounting groove is formed in the shell, a pressure spring is arranged in the mounting groove, one end of the pressure spring is connected to the bottom of the mounting groove, and the other end of the pressure spring faces the notch of the mounting groove and is fixedly connected with the bottom of the insulation resistor.

As another aspect of the present application, an electrical connection device is provided, including the arc-pulling-proof dc socket and the plug as described above, a conductive pillar is disposed on the plug, and the conductive pillar of the plug can be inserted into and abutted against the elastic conductive seat piece of the dc socket or pulled out from the elastic conductive seat piece of the dc socket, so as to implement electrical connection or power failure.

3. Advantageous effects

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

(1) when the conductive column is separated from the elastic conductive seat piece, particularly when the conductive column is separated, the conductive pieces on two sides of the insulating resistor abut against the elastic conductive seat piece again, so that the resistance in the cut-off loop of the power connection equipment is increased instantly, the voltage is increased, the electric arc is extinguished instantly under the influence of the voltage drop, and the problem that the direct current generates the arc discharge phenomenon when the conductive column is separated from the elastic conductive seat piece is solved;

(2) the utility model discloses a prevent drawing arc DC socket simple structure, reasonable in design easily makes, also more stable in general DC socket performance, long service life.

Drawings

Fig. 1 is a schematic plan view of an arc discharge prevention dc socket according to an embodiment of the present invention;

fig. 2 is a perspective view of an arc-proof dc socket structure according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an elastic conductive seat piece according to an embodiment of the present invention;

in the figure: 100. a plug; 110. a conductive post; 200. a DC socket; 210. a housing; 220. a conductive chamber; 221. an elastic conductive base sheet; 230. a power connection chamber; 231. a wire inlet end; 232. a wire outlet end; 233. mounting grooves; 240. an insulation resistance; 250. compressing the spring; 260. and a guide post.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

For a conventional rail socket, when the conductive post is separated from the elastic conductive base piece, the direct current generates an arc (arcing phenomenon). The electric shock accident is easy to happen, and in specific occasions, such as places with flammable gases such as gas, oil gas and the like in the air, fire and even explosion can happen, and the danger is extremely high.

As shown in fig. 1 and fig. 2, the present embodiment provides an electrical connection device for connecting a power source and an electrical appliance. Its simple structure, the electrically conductive seat piece of elasticity that needs insert the socket completely with the electrically conductive post of plug just can electrically conduct, prevents to produce electric arc at the plug in-process, avoids incident's emergence, safe and reliable, and is stable durable, and user experience feels good. The power connection device includes a plug 100 and a dc socket 200, wherein the plug 100 is generally disposed on an electrical appliance, and the dc socket 200 is connected to a power source. The plug 100 is provided with a conductive post 110, and the conductive post 110 can be inserted into the dc socket 200 or pulled out from the dc socket 200 to turn on or off a circuit, so as to power on or off the electric appliance. In this embodiment, the dc socket 200 is a two-hole socket, and the number of the conductive posts 110 is two, but not limited thereto, and the dc socket 200 may also be a three-hole socket.

Referring to fig. 1 and fig. 2, the dc outlet 200 includes a housing 210, and a conductive chamber 220 and a power connection chamber 230 are disposed in the housing 210, respectively. The power connection chamber 230 is used for connecting an external power supply, the power connection chamber 230 is provided with at least one wire inlet end 231 and one wire outlet end 232, and two power supply wires of the external power supply can respectively extend from the wire inlet end 231 and the wire outlet end 232 on the power connection chamber 230 and penetrate through the conductive chamber 220; the conductive cavity 220 is used for the conductive column 110 of the plug 100 to be inserted and conducted, an elastic conductive base piece 221 is disposed in the conductive cavity 220, one end of the elastic conductive base piece 221 is connected and conducted with a power supply wire of an external power supply, and the other end of the elastic conductive base piece is abutted to the corresponding conductive column 110 when the conductive column 110 is inserted into the conductive cavity 220, so that the external power supply is conducted with the conductive cavity 220, and the plug 100 is powered.

In this embodiment, two elastic conductive seat pieces 221 are provided for connecting and conducting the two conductive posts 110 respectively; referring to fig. 3, each of the elastic conductive seat pieces 221 includes a first electrical connecting piece and a second electrical connecting piece, the first electrical connecting piece and the second electrical connecting piece are arc-shaped pieces, concave surfaces of the first electrical connecting piece and the second electrical connecting piece are opposite to each other and combined to form an elastic structure with larger openings at two ends and smaller opening in the middle, and a top opening of the elastic structure is used as an insertion opening for inserting the conductive pillar 110. When the plug 100 is inserted, the conductive column 100 is inserted into the elastic conductive seat piece 221, so that the two ends of the elastic conductive seat piece 221 are expanded and deformed, and at this time, the elastic conductive seat piece 221 generates a clamping force, so that the conductive column 110 and the elastic conductive seat piece 221 generate sliding friction until the conductive column 100 is inserted into and clamped in the insertion opening of the elastic conductive seat piece 221. Since the friction between the two is smaller than the clamping force of the elastic conductive seat piece 221, the conductive post 110 is in a static state relative to the elastic conductive seat piece 221 without being affected by external force.

More specifically, the elastic conductive seat piece 221 further includes a connecting piece, and the bottom ends of the first electrical connecting piece and the second electrical connecting piece are connected and sealed through the connecting piece. In another preferred embodiment, the first electric connecting piece, the connecting piece and the second electric connecting piece are of an integrally molded structure. It should be noted that, along the inserting direction of the conductive pillar 100, a connecting port with a diameter slightly larger than the inserting opening is further formed between the connecting piece and the first and second electrical contacts.

Referring to fig. 1, in the present embodiment, an insulation resistor 240 is further disposed in the housing 210. The insulation resistor 240 is mounted in the conductive chamber 220 and is capable of moving relative to the conductive chamber 220. When the elastic conductive seat piece 221 is in an electrically conductive state, the insulation resistor 240 is separated from the elastic conductive seat piece 221; when the electrically conductive state of the elastic conductive seat piece 221 is finished, the insulation resistor 240 is in contact with the elastic conductive seat piece 221. The electrical conduction state of the elastic conductive seat piece 221 refers to that the conductive column 110 of the plug 100 is inserted into the dc socket 200 to conduct a circuit, so that the elastic conductive seat piece 221 is in a power-on state when the electrical appliance is powered on; the elastic conductive seat piece 221 is electrically connected, which means that the conductive post 110 of the plug 100 is pulled out from the dc socket 200, so that the elastic conductive seat piece 221 is electrically connected when the circuit is disconnected.

Referring to fig. 2, more specifically, two sides of the insulation resistor 240 are respectively provided with a conductive plate, one end of the conductive plate is connected to the insulation resistor 240, and the other end of the conductive plate is abutted to the first electrical contact and the second electrical contact through a connection port between the first electrical contact and the second electrical contact. In a preferred embodiment, the conductive sheet comprises a first section for fixedly connecting the insulation resistor 240, a second section, and a third section for abutting against the first electric contact and the second electric contact, wherein the third section of the conductive sheet can extend at least to the position of the minimum diameter of the insertion opening. In a conventional situation, that is, when the conductive post 110 of the plug 100 is not inserted into the elastic conductive seat piece 221 of the dc outlet 200, the third segment of the conductive piece abuts against the first electrical contact and the second electrical contact, and the insulation resistor 240 and the elastic conductive seat piece 221 are in a connected and non-conductive state; when the conductive post 110 on the plug 100 is inserted into and abutted against the elastic conductive seat piece 221 on the dc outlet 200, because the conductive post 100 is inserted into the elastic conductive seat piece 221, the two ends of the elastic conductive seat piece 221 are expanded and deformed, and at this time, the conductive pieces at the two ends of the insulation resistor 240 are separated from the elastic conductive seat piece because the two ends of the elastic conductive seat piece 221 are continuously expanded; when the conductive post 110 on the plug 100 is separated from the dc socket 200, the elastic conductive seat piece 221 returns to the original shape, the insulation resistor 240 is again abutted to the elastic conductive seat piece 221, the resistance in the circuit is instantly increased, the voltage is increased, and the arc is instantly extinguished under the influence of the voltage drop.

More specifically, the insulation resistor 240 is always in contact with the elastic conductive seat piece 221 each time the elastic conductive seat piece 221 is restored to the original form. In a preferred embodiment, a mounting groove 233 is formed on one side of the power connection chamber 230 facing the conductive chamber 220, a compression spring 250 is disposed at the bottom of the mounting groove 233, one end of the compression spring 250 is fixedly connected to the bottom of the mounting groove 233, and the other side of the compression spring is connected to the bottom of the insulation resistor 240 through a guide post 260. In a conventional case, that is, when the conductive post 110 on the plug 100 is not inserted into the elastic conductive seat piece 221 on the dc socket 200, as mentioned above, on one hand, the elastic conductive seat piece 221 is in contact with the insulation resistor 240; on the other hand, by compressing the compression spring 250 when assembling the insulation resistor 240, the compression spring 250 can continuously transmit an upward elastic force to the insulation resistor 240, and further, the conductive sheets at two sides of the insulation resistor 240 can be fully abutted against the elastic conductive seat sheet 221 through the insulation resistor 240, thereby ensuring the stability of the device performance.

It should be noted that, for the insulation resistor 240, the insulation resistor 240 needs to have its two side conductive sheets always abut against the elastic conductive seat sheet 221 under the conventional condition, and when the conductive post 110 on the plug 100 is inserted into and abuts against the elastic conductive seat sheet 221 on the dc outlet 200, the two side conductive sheets are separated from the elastic conductive seat sheet. In order to ensure the stress balance of the insulation resistor 240, the compression spring 250 is in a pre-compressed state when being installed, so that the positive pressure exerted on the elastic conductive seat piece 221 by the insulation resistor 240 is greater than or equal to the reaction force exerted on the insulation resistor 240 by the compression spring 250 under elastic deformation, thereby ensuring the stability of the performance of the device.

By adopting the structure, when the conductive column 110 is separated from the elastic conductive seat piece 221, especially at the moment when the conductive column 110 is separated, the conductive sheets at two sides of the insulation resistor 240 are abutted against the elastic conductive seat piece 221 again, so that the resistance in the on-off loop of the electrical equipment is increased instantly, the voltage is increased, the electric arc is extinguished instantly under the influence of the voltage drop, and the problem that the direct current generates the arc discharge phenomenon when the conductive column is separated from the elastic conductive seat piece is avoided.

The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims (5)

1. Prevent drawing arc DC socket, DC socket includes casing (210) and sets up electrically conductive seat piece (221) of elasticity in casing (210), its characterized in that: the device also comprises an insulation resistor (240), wherein the insulation resistor (240) is arranged in the shell and can move relative to the elastic conductive seat sheet (221); when the elastic conductive seat piece (221) is in an electrically conductive state, the insulation resistor (240) is separated from the elastic conductive seat piece (221); when the electric conduction state of the elastic conductive seat piece (221) is finished, the insulation resistor (240) is in contact conduction with the elastic conductive seat piece (221).

2. The arcing resistant direct current outlet of claim 1, wherein: the elastic conductive seat piece (221) comprises a first electric connecting piece and a second electric connecting piece, the first electric connecting piece and the second electric connecting piece are arc-shaped pieces, concave surfaces of the first electric connecting piece and the second electric connecting piece are arranged oppositely, and are combined to form an insertion opening with larger openings at two ends and smaller opening in the middle.

3. The arcing resistant direct current outlet of claim 2, wherein: the conductive socket further comprises a conductive sheet, one end of the conductive sheet is connected with the insulation resistor (240), and the other end of the conductive sheet can be inserted into the insertion hole of the elastic conductive socket sheet (221) and is abutted against the elastic conductive socket sheet (221).

4. The arcing resistant direct current outlet of claim 1, wherein: set up mounting groove (233) in casing (210), be provided with pressure spring (250) in mounting groove (233), the tank bottom in mounting groove (233) is connected to the one end of pressure spring (250), and the other end orientation the notch of mounting groove (233) and the bottom fixed connection of insulation resistance (240).

5. An electrical connection apparatus, comprising: the arc-pulling-proof direct current socket and the plug (100) are included, the arc-pulling-proof direct current socket and the plug (100) are provided with the conductive columns (110), the conductive columns (110) of the plug (100) can be inserted into and abutted against the elastic conductive seat sheet (221) of the direct current socket or pulled out of the elastic conductive seat sheet (221) of the direct current socket, and therefore power connection or power disconnection is achieved.

Images