阅读说明：本技术 一种便于更换盖板的多功能插座 (Multifunctional socket convenient to change apron ) 是由 孙志胜 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种便于更换盖板的多功能插座,包括：连接固定盒、插座面板、外固定壳和阻燃盖板,连接固定盒上开凿有多个卡合槽；插座面板靠近连接固定盒的一面上设有多个与卡合槽相匹配的卡合块,卡合块与插座面板固定连接；外固定壳套设于插座面板上,外固定壳上开凿有固定槽,固定槽内设有多个限位块,限位块与外固定壳固定连接；阻燃盖板设于外固定壳上。本发明通过对现有多功能插座盖板相应机构的设置,使盖板便于拆卸和更换,减少插头插入或拔出时盖板掉落的情况,提高了插座使用过程中的安全性,便于维修人员打开,缩短盖板打开时间,从而加快维修速度,降低在打开过程中损坏插座的概率,从而为使用者降低损失。(The invention discloses a multifunctional socket convenient for replacing a cover plate, which comprises: the connecting and fixing box, the socket panel, the outer fixing shell and the flame-retardant cover plate are connected, and a plurality of clamping grooves are formed in the connecting and fixing box; a plurality of clamping blocks matched with the clamping grooves are arranged on one surface, close to the connecting and fixing box, of the socket panel, and the clamping blocks are fixedly connected with the socket panel; the outer fixing shell is sleeved on the socket panel, a fixing groove is formed in the outer fixing shell in a chiseled mode, a plurality of limiting blocks are arranged in the fixing groove, and the limiting blocks are fixedly connected with the outer fixing shell; the fire-retardant apron is located on the outer set casing. According to the multifunctional socket cover plate, the cover plate is convenient to detach and replace by arranging the corresponding mechanism of the existing multifunctional socket cover plate, the condition that the cover plate falls off when a plug is inserted or pulled out is reduced, the safety of the socket in the using process is improved, maintenance personnel can conveniently open the socket, the opening time of the cover plate is shortened, the maintenance speed is accelerated, the probability of damaging the socket in the opening process is reduced, and therefore loss is reduced for users.)

1. The utility model provides a multi-functional socket convenient to change apron which characterized in that includes:

connecting and fixing the box (1);

the socket panel (2) is connected to the connecting and fixing box (1);

the outer fixed shell (3) is sleeved on the socket panel (2);

and the flame-retardant cover plate (4) is arranged on the outer fixed shell (3).

2. The multifunctional socket with the cover plate convenient to replace according to claim 1, wherein a plurality of engaging slots (101) are cut on the connecting and fixing box (1), a plurality of power connectors (102) are arranged in the connecting and fixing box (1), and a rocker connector (103) is arranged on one side of each power connector (102).

3. The multifunctional socket convenient for replacing the cover plate according to claim 1, wherein a plurality of engaging blocks (201) matched with the engaging grooves (101) are arranged on one surface of the socket panel (2) close to the connecting and fixing box (1), the engaging blocks (201) are fixedly connected with the socket panel (2), a plurality of jacks (202) are drilled on the socket panel (2), a safety protection door (203) is arranged in each jack (202), and a rocker switch (204) is arranged on the socket panel (2).

4. The multifunctional socket convenient for replacing the cover plate according to claim 1, wherein a fixing groove is formed in the outer fixing shell (3), a plurality of limit blocks (301) are arranged in the fixing groove, the limit blocks (301) are fixedly connected with the outer fixing shell (3), an inner fixing frame (302) is connected between the outer fixing shell (3) and the flame-retardant cover plate (4), and the inner fixing frame (302) is arranged in the fixing groove.

5. The multifunctional socket convenient for replacing the cover plate is characterized in that a plurality of limiting grooves (303) matched with the limiting blocks (301) are formed in the inner fixing frame (302), threaded holes are formed in the limiting grooves (303), fastening bolts (304) are arranged in the threaded holes, and the fastening bolts (304) penetrate through the inner fixing frame (302) and are in threaded connection with the outer fixing shell (3).

6. The multifunctional socket convenient for replacing the cover plate according to claim 1, wherein a pair of fastening fixing grooves and a pair of fixing holes are drilled on the outer fixing shell (3), the fastening fixing grooves are communicated with the fixing holes, a plurality of magnets (305) are arranged in the fastening fixing grooves, a limiting sleeve (306) is connected to each of the plurality of magnets (305), a fixing bearing (307) is arranged in each of the pair of fixing holes, and a fixing screw (308) is inserted into each fixing bearing (307).

7. The multifunctional socket convenient for replacing the cover plate according to claim 1, wherein a pair of first fixing support blocks (401) are arranged on the fire-retardant cover plate (4), a fixing sleeve (402) is connected to each of the pair of first fixing support blocks (401), a thread groove is formed in each fixing sleeve (402), a plurality of second fixing support blocks (403) are arranged on one surface, close to the outer fixing shell (3), of the fire-retardant cover plate (4), and magnetic columns (404) are connected to the second fixing support blocks (403).

8. The multi-functional socket of claim 3, further comprising:

the microwave transmitting module (5) is arranged right opposite to the jack and used for sending microwave signals to the jack (202) in a preset time period;

the microwave reflection module (6) is used for generating folds with corresponding degrees according to the humidity in the jack and reflecting the microwave signals transmitted by the microwave transmission module (5) to serve as detection microwave signals;

a humidity value acquisition module (7) connected to the microwave reflection module (6) for:

receiving a detection microwave signal sent by the microwave reflection module (6);

carrying out forward processing on the detected microwave signal to obtain a forward microwave signal;

carrying out reverse processing on the detected microwave signal to obtain a reverse microwave signal;

superposing the forward microwave signal and the reverse microwave signal to obtain a superposed signal, analyzing the superposed signal to generate a superposed curve, calculating the curvature of the superposed curve, and calculating according to the curvature to obtain a correction coefficient;

correcting the forward microwave signal according to the correction coefficient to obtain a target forward microwave signal;

inquiring a preset target forward microwave signal-humidity value data table according to the target forward microwave signal to obtain a corresponding humidity value;

a dehumidification module (8) disposed over the receptacle (202);

control module (9), respectively with humidity value obtains module (7), dehumidification module (8) and is connected for:

receiving a plurality of humidity values within a preset time period sent by the humidity value acquisition module (7), and performing fitting processing to obtain a humidity change curve;

and calculating the change rate according to the humidity change curve, judging whether the change rate is greater than a preset change rate or not, and controlling the dehumidification module (8) to perform dehumidification operation on the jack when the change rate is determined to be greater than the preset change rate.

9. The multi-functional socket of claim 1, further comprising:

the electric wire information acquisition module is arranged on an electric wire connected with the socket and used for acquiring electric wire information;

the second control module is connected with the electric wire information acquisition module and used for receiving the electric wire information of the electric wire information acquisition module, calculating the time length of the electric wire reaching the highest allowable temperature according to the electric wire information, judging whether the time length is less than the preset time length or not, and disconnecting the electric wire from the power supply connecting piece (102) when the time length is determined to be less than the preset time length;

the calculating the time length of the electric wire reaching the maximum allowable temperature according to the electric wire information comprises the following steps:

calculating a thermal growth coefficient Z of the wire:

wherein, I_cIs the effective value of the current in the transmission line of the electric wire; r_dAn equivalent resistance of a transmission line being an electric wire; k is the resistivity coefficient of the wire; t is_zThe maximum allowable temperature of the wire; t is_yIs the ambient temperature around the wire; j is the convection heat dissipation coefficient of the wire; n is the radiation heat dissipation coefficient of the wire;

calculating the thermal inertia coefficient F of the wire:

wherein m is the mass of the wire in unit length, and c is the equivalent specific heat capacity of the wire;

calculating the time length t of the wire reaching the maximum allowable temperature according to the thermal growth coefficient Z of the wire and the thermal inertia coefficient F of the wire:

wherein, T₀Is the temperature at which the wire is just conducting.

10. The multi-functional socket of claim 8, wherein,

the dehumidification module (8) comprises a thermosiphon for dehumidifying the receptacles;

the control module (9) is also used for calculating the heat exchange coefficient of the thermosiphon and judging whether the heat exchange coefficient is larger than a preset heat exchange coefficient; when the heat exchange coefficient is determined to be larger than a preset heat exchange coefficient, reducing the flow velocity of the liquid stored in the thermosiphon pipe; increasing the flow rate of the liquid stored in the thermosiphon tube when it is determined that the heat exchange coefficient is less than a preset heat exchange coefficient;

calculating the heat exchange coefficient G of the thermosiphon:

wherein Q is the heat exchange quantity of the condensation end of the thermosiphon, T_MIs the saturation temperature of the liquid in the thermosiphon,and the average temperature of the wall surface of the condensation section of the thermosiphon is shown, R is the inner diameter of the thermosiphon, and L is the length of the condensation section.

Technical Field

The invention belongs to the technical field of multifunctional sockets, and particularly relates to a multifunctional socket with a cover plate convenient to replace.

Background

The socket is also called a power socket and a switch socket. A socket is a receptacle into which one or more circuit connections can be inserted, through which various connections can be inserted, thus facilitating the connection to other circuits. The connection and disconnection of the circuit and the copper piece are achieved, the connection and disconnection of the part of the circuit are achieved finally, and along with the continuous development of the technology, the functions of the socket are more and more, so that connecting wires in various forms can be inserted into one socket.

In the use at the socket, in order to increase the security, protection user personal safety, can increase a protection apron on the socket, apron can protect user's safety in normal use, reduce the probability of electrocuteeing, but current socket cover board uses the checkpost block mostly, when leading to the maintenance, maintenance person need prize it open, the dead condition of card takes place easily, cause the maintenance inconvenient, and can damage the socket shell at prize-open in-process, lead to inside barrel to leak outward, just at this moment need change whole socket and just can use, bring unnecessary economic loss for the user.

Therefore, in view of the above technical problems, there is a need for a multifunctional socket with a cover plate easy to replace.

Disclosure of Invention

The invention aims to provide a multifunctional socket with a cover plate convenient to replace, and the multifunctional socket is used for solving the problem that the existing socket cover plate is inconvenient to replace during maintenance.

In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:

a multifunctional socket convenient for replacing a cover plate comprises a connecting and fixing box, a socket panel, an outer fixing shell and a flame-retardant cover plate;

a plurality of clamping grooves are formed in the connecting and fixing box;

a plurality of clamping blocks matched with the clamping grooves are arranged on one surface, close to the connecting and fixing box, of the socket panel, and the clamping blocks are fixedly connected with the socket panel;

the outer fixing shell is sleeved on the socket panel, a fixing groove is formed in the outer fixing shell, a plurality of limiting blocks are arranged in the fixing groove, and the limiting blocks are fixedly connected with the outer fixing shell;

the flame-retardant cover plate is arranged on the outer fixed shell.

Furthermore, be equipped with a plurality of power connector in connecting fixed box for connecting plug, be convenient for transmit current, one side of power connector is equipped with the wane connecting piece for the start-up and the closing of cooperation wane switch control electrical apparatus, convenient to use person operates.

Furthermore, a plurality of jacks are formed in the socket panel and used for inserting plugs, so that power can be conveniently switched on, the jacks are multiple, safety protection doors are arranged in the jacks and used for protecting users, the probability of electric shock of the users when the plugs are inserted and pulled out is reduced, and the socket panel is provided with a rocker switch and used for being matched with a rocker connecting piece to control the starting and the closing of the household appliance.

Furthermore, an inner fixing frame is connected between the outer fixing shell and the flame-retardant cover plate and used for fixing the socket panel to prevent the socket panel from loosening easily, so that the stability of the device is improved, the inner fixing frame is arranged in a fixing groove to reduce the space occupation, prevent the inner fixing frame from being exposed easily and facilitate the fixing, a plurality of limiting grooves matched with the limiting blocks are formed in the inner fixing frame and used for being matched with the limiting blocks for fixing, so that the inner fixing frame can be fixed in the fixing groove of the outer fixing shell and is not prone to shaking, threaded holes are formed in the limiting grooves to facilitate the rotation of the fastening bolts, fastening bolts are arranged in the threaded holes and penetrate through the inner fixing frame to be in threaded connection with the outer fixing shell and are used for fixing the inner fixing frame on the outer fixing shell and reducing the shaking of the inner fixing frame, a pair of clamping fixing grooves and a pair of fixing holes are formed in the outer fixing shell, the clamping fixing groove is used for fixing the flame-retardant cover plate, so that the flame-retardant cover plate is not easy to fall off when a user inserts or extracts the plug, the fixing hole is used for inserting the fixing screw rod, the flame-retardant cover plate is convenient to fix, and the clamping fixing groove is communicated with the fixing hole.

Further, be equipped with a plurality of magnets in the block fixed slot for attract the magnetism post, make the magnetism post be difficult for removing, thereby reach the effect of fixed fire-retardant apron, it is a plurality of all be connected with limit sleeve on the magnet, play limiting displacement to the magnetism post, make the magnetism post be difficult for rocking, thereby reach the effect of fixed fire-retardant apron, it is a pair of all be equipped with fixing bearing in the fixed orifices, make clamping screw can the free rotation and be difficult for receiving the influence of external fixation shell, fixing bearing is inserted in and is equipped with clamping screw for the fixed fire-retardant apron of cooperation fixing sleeve.

Furthermore, the pair of first fixed supporting blocks is arranged on the flame-retardant cover plate and used for supporting the fixed sleeve and driving the fixed sleeve to move, the fixed sleeve is connected to the pair of first fixed supporting blocks, the flame-retardant cover plate is not prone to moving after the fixed sleeve is fixed, and a thread groove is formed in the fixed sleeve, so that the fixed screw can rotate to enter the fixed sleeve.

Furthermore, one side of the flame-retardant cover plate, which is close to the outer fixed shell, is provided with a plurality of second fixed supporting blocks for supporting and driving the magnetic columns to move, and the second fixed supporting blocks are connected with the magnetic columns and used for being inserted into the limiting sleeves, so that the magnetic columns are not easy to shake up and down, and the effect of fixing the flame-retardant cover plate is achieved.

Further, the socket further includes:

the microwave transmitting module is arranged right opposite to the jack and used for sending a microwave signal into the jack within a preset time period;

the microwave reflection module is used for generating folds with corresponding degrees according to the humidity in the jack and reflecting the microwave signals transmitted by the microwave transmission module to serve as detection microwave signals;

the humidity value acquisition module is connected with the microwave reflection module and is used for:

receiving a detection microwave signal sent by the microwave reflection module;

carrying out forward processing on the detected microwave signal to obtain a forward microwave signal;

carrying out reverse processing on the detected microwave signal to obtain a reverse microwave signal;

superposing the forward microwave signal and the reverse microwave signal to obtain a superposed signal, analyzing the superposed signal to generate a superposed curve, calculating the curvature of the superposed curve, and calculating according to the curvature to obtain a correction coefficient;

correcting the forward microwave signal according to the correction coefficient to obtain a target forward microwave signal;

inquiring a preset target forward microwave signal-humidity value data table according to the target forward microwave signal to obtain a corresponding humidity value;

the dehumidification module is arranged above the jack;

the control module is respectively connected with the humidity value acquisition module and the dehumidification module and is used for:

receiving a plurality of humidity values within a preset time period sent by the humidity value acquisition module, and performing fitting processing to obtain a humidity change curve;

and calculating a change rate according to the humidity change curve, judging whether the change rate is greater than a preset change rate or not, and controlling the dehumidification module to perform dehumidification operation on the jack when the change rate is determined to be greater than the preset change rate.

Further, the socket further includes:

the electric wire information acquisition module is arranged on an electric wire connected with the socket and used for acquiring electric wire information;

the second control module is connected with the electric wire information acquisition module and used for receiving the electric wire information of the electric wire information acquisition module, calculating the time length of the electric wire reaching the highest allowable temperature according to the electric wire information, judging whether the time length is less than the preset time length or not, and disconnecting the electric wire from the power supply connecting piece when the time length is determined to be less than the preset time length;

the calculating the time length of the electric wire reaching the maximum allowable temperature according to the electric wire information comprises the following steps:

calculating a thermal growth coefficient Z of the wire:

wherein, I_cIs the effective value of the current in the transmission line of the electric wire; r_dAn equivalent resistance of a transmission line being an electric wire; k is the resistivity coefficient of the wire; t is_zThe maximum allowable temperature of the wire;T_yis the ambient temperature around the wire; j is the convection heat dissipation coefficient of the wire; n is the radiation heat dissipation coefficient of the wire;

calculating the thermal inertia coefficient F of the wire:

wherein m is the mass of the wire in unit length, and c is the equivalent specific heat capacity of the wire;

calculating the time length t of the wire reaching the maximum allowable temperature according to the thermal growth coefficient Z of the wire and the thermal inertia coefficient F of the wire:

wherein, T₀Is the temperature at which the wire is just conducting.

Further, the dehumidification module comprises a thermosiphon for performing dehumidification operation on the jack;

the control module is also used for calculating the heat exchange coefficient of the thermosiphon and judging whether the heat exchange coefficient is greater than a preset heat exchange coefficient; when the heat exchange coefficient is determined to be larger than a preset heat exchange coefficient, reducing the flow velocity of the liquid stored in the thermosiphon pipe; increasing the flow rate of the liquid stored in the thermosiphon tube when it is determined that the heat exchange coefficient is less than a preset heat exchange coefficient;

calculating the heat exchange coefficient G of the thermosiphon:

wherein Q is the heat exchange quantity of the condensation end of the thermosiphon, T_MIs the saturation temperature of the liquid in the thermosiphon,of the wall of the condensation section of the thermosiphonAnd (3) average temperature, wherein R is the inner diameter of the thermosiphon, and L is the length of the condensation section.

Compared with the prior art, the invention has the following advantages:

1. the invention is convenient to disassemble and replace the cover plate by arranging the corresponding mechanism of the existing multifunctional socket cover plate,

2. the situation that the cover plate falls off when the plug is inserted or pulled out is reduced, the safety of the socket in the using process is improved,

3. is convenient for maintenance personnel to open, shortens the opening time of the cover plate, thereby quickening the maintenance speed,

4. the probability of damage to the socket during opening is reduced, thereby reducing losses for the user.

5. The humidity signal is transmitted through the microwave signal, forward processing and reverse processing are carried out on the received microwave signal, the influence of noise on signal transmission can be eliminated, the humidity value at the jack can be accurately judged, when the humidity value is larger than a preset humidity threshold value, the dehumidification operation is carried out on the socket, the short circuit caused by humidity or even the fire can be effectively prevented, and the safety of the socket is greatly improved.

6. The electric wire connected with the socket is detected, the time length for the electric wire to reach the highest allowable temperature is calculated according to the thermal growth coefficient of the electric wire and the thermal inertia coefficient of the electric wire, so that the electric wire can be powered off before being damaged due to overheating of the electric wire, the possibility that the electric wire is burnt out or even a fire disaster is caused due to overhigh temperature caused by long-time electrification is effectively avoided, and the safety of the socket is greatly improved.

7. Through right the heat transfer coefficient of thermosiphon calculates, judges whether to be greater than and predetermine heat transfer coefficient to control the velocity of flow of liquid in the thermosiphon, when having guaranteed can effectively dehumidify the jack, also reduced the velocity of flow of liquid in the thermosiphon as far as, effectual extension the life of thermosiphon.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of a multi-functional receptacle for facilitating replacement of a cover plate in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure at B in FIG. 1;

FIG. 4 is a perspective view of a multi-functional receptacle for facilitating replacement of a cover plate according to an embodiment of the present invention;

FIG. 5 is another perspective view of a multi-functional receptacle for facilitating replacement of a cover plate according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 at C;

FIG. 8 is a partial top cross-sectional view of a multi-function receptacle for facilitating replacement of a cover plate in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of the structure of FIG. 8 at D;

FIG. 10 is a schematic view of the structure at E in FIG. 8;

FIG. 11 is a block diagram of a method for preventing a moisture short in accordance with an embodiment of the present invention;

fig. 12 is a block diagram of a circuit for preventing overheating according to an embodiment of the present invention.

In the figure: 1. the intelligent socket comprises a connecting and fixing box, 101, a clamping groove, 102, a power supply connecting piece, 103, a rocker connecting piece, 2, a socket panel, 201, a clamping block, 202, a jack, 203, a safety protection door, 204, a rocker switch, 3, an outer fixing shell, 301, a limiting block, 302, an inner fixing frame, 303, a limiting groove, 304, a fastening bolt, 305, a magnet, 306, a limiting sleeve, 307, a fixing bearing, 308, a fixing screw, 4, a flame-retardant cover plate, 401, a first fixing supporting block, 402, a fixing sleeve, 403, a second fixing supporting block, 404, a magnetic column, 5, a microwave transmitting module, 6, a microwave receiving module, 7, a humidity acquisition module, 8, a dehumidification module and 9, and a control module.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.

The invention discloses a multifunctional socket convenient for replacing a cover plate, which is shown in figures 1-10 and comprises a connecting and fixing box 1, a socket panel 2, an outer fixing shell 3 and a flame-retardant cover plate 4.

Referring to fig. 1, a plurality of engaging grooves 101 are formed in the connecting and fixing box 1 for engaging with engaging blocks 201 to engage with each other, so as to fix the socket panel 2, so that the socket panel 2 is not prone to shaking, and a plurality of power connectors 102 are arranged in the connecting and fixing box 1 for connecting plugs, so as to facilitate current transmission, and a rocker connector 103 is arranged on one side of each power connector 102 for engaging with a rocker switch 204 to control the starting and closing of an electric appliance, so as to facilitate the operation of a user.

Referring to fig. 1 and 4, one side of the socket panel 2 close to the connection fixing box 1 is provided with a plurality of engaging blocks 201 matched with the engaging grooves 101, which are used for engaging in the engaging grooves 101, so that the socket panel 2 is not easy to move, the engaging blocks 201 are fixedly connected with the socket panel 2, a plurality of jacks 202 are drilled on the socket panel 2 for inserting plugs, thereby being convenient for switching on a power supply, safety protection doors 203 are arranged in the jacks 202 for protecting users, the probability of electric shock when the users insert and extract the plugs is reduced, a rocker switch 204 is arranged on the socket panel 2, and is used for matching with the rocker connecting piece 103 to control the start and the close of the household appliance.

Referring to fig. 1 and 3, an outer fixing shell 3 is sleeved on a socket panel 2, a fixing groove is cut on the outer fixing shell 3, a plurality of limit blocks 301 are arranged in the fixing groove and used for being clamped in limit grooves 303 and limiting the inner fixing frame 302, so that the inner fixing frame 302 is not easy to move, the limit blocks 301 are fixedly connected with the outer fixing shell 3, the inner fixing frame 302 is connected between the outer fixing shell 3 and a flame-retardant cover plate 4 and used for fixing the socket panel 2, so that the socket panel 2 is not easy to loosen, thereby increasing the stability of the device, the inner fixing frame 302 is arranged in the fixing groove and reducing the occupation of space, so that the inner fixing frame 302 is not easy to expose and is beneficial to fixing, a plurality of limit grooves 303 matched with the limit blocks 301 are cut on the inner fixing frame 302 and used for being matched with the limit blocks 301 for fixing, so that the inner fixing frame 302 can be fixed in the fixing groove of the outer fixing shell 3 and is not easy to shake, threaded holes are drilled in the limiting grooves 303, so that the fastening bolts 304 can rotate conveniently, the fastening bolts 304 are arranged in the threaded holes and penetrate through the inner fixing frame 302 to be in threaded connection with the outer fixing shell 3, the inner fixing frame 302 is fixed on the outer fixing shell 3, and shaking of the inner fixing frame 302 is reduced.

Referring to fig. 9 to 10, a pair of fastening fixing grooves and a pair of fixing holes are drilled on the outer fixing shell 3, the fastening fixing grooves are used for fixing the flame-retardant cover plate 4, so that the flame-retardant cover plate 4 is not easily dropped when a user inserts or extracts a plug, the fixing holes are used for inserting the fixing screw 308, so that the flame-retardant cover plate 4 is conveniently fixed, the fastening fixing grooves are communicated with the fixing holes, a plurality of magnets 305 are arranged in the fastening fixing grooves and used for attracting the magnetic columns 404, so that the magnetic columns 404 are not easily moved, thereby achieving the effect of fixing the flame-retardant cover plate 4, the plurality of magnets 305 are connected with the limiting sleeves 306, so as to limit the magnetic columns 404, so that the magnetic columns 404 are not easily shaken, thereby achieving the effect of fixing the flame-retardant cover plate 4, the fixing bearings 307 are arranged in the pair of fixing holes, so that the fixing screw 308 can freely rotate and is not easily affected by the outer fixing shell 3, the fixing screws 308 are inserted in the fixing bearings 307, for cooperating with the fixing sleeve 402 to fix the fire retardant cover plate 4.

Referring to fig. 7-8, the fire-retardant cover plate 4 is disposed on the outer fixing shell 3, a pair of first fixing support blocks 401 is disposed on the fire-retardant cover plate 4, and is used for supporting the fixing sleeve 402 and driving the fixing sleeve 402 to move, the pair of first fixing support blocks 401 are connected with the fixing sleeve 402, so that the fire-retardant cover plate 4 is not easy to move after the fixing sleeve 402 is fixed, a thread groove is formed in the fixing sleeve 402, so that the fixing screw 308 can rotate into the fixing sleeve 402, one surface of the fire-retardant cover plate 4, which is close to the outer fixing shell 3, is provided with a plurality of second fixing support blocks 403 for supporting and driving the magnetic columns 404 to move, the second fixing support blocks 403 are connected with the magnetic columns 404 for being inserted into the limiting sleeves 306, so that the magnetic columns 404 are not easy to rock up and down, and further achieve the effect of fixing the fire-retardant cover plate 4.

When the flame-retardant cover plate 4 is used specifically, when a maintenance worker needs to open the flame-retardant cover plate 4, the maintenance worker rotates the fixing screw 308, the fixing screw 308 can rotate in the fixing sleeve 402, after the fixing screw 308 rotates for a certain number of turns, the fixing screw 308 completely leaves the fixing sleeve 402, at this time, the flame-retardant cover plate 4 is pulled downwards, the flame-retardant cover plate 4 drives the magnetic column 404 to move through the second fixing support block 403, the magnetic column 404 is separated from the magnet 305, and after the flame-retardant cover plate 4 moves for a certain distance, the magnetic column 404 can be separated from the limiting sleeve 306, and at this time, the flame-retardant cover plate 4 can be taken down;

when the fire-retardant apron 4 of needs installation, insert the block fixed slot of the fire-retardant apron 4 alignment in the outer set casing 3, then upwards promote, make magnetic column 404 insert in spacing sleeve 306, can attract each other when magnetic column 404 is close to with magnet 305, thereby make magnetic column 404 be difficult for dropping, at this moment insert and rotate clamping screw 308, clamping screw 308 can the screw entry to clamping sleeve 402 after rotatory, thereby fix clamping sleeve 402, make clamping sleeve 402 be difficult for dropping, and then reach the effect of fixed fire-retardant apron 4.

Referring to fig. 11, the present invention provides a technical solution: the microwave transmitting module 5 is arranged right opposite to the jack and used for sending a microwave signal into the jack 202 in a preset time period;

the microwave reflection module 6 is used for generating folds with corresponding degrees according to the humidity in the jack and reflecting the microwave signals transmitted by the microwave transmission module 5 to serve as detection microwave signals;

a humidity value obtaining module 7 connected to the microwave reflection module 6, and configured to:

receiving a detection microwave signal sent by the microwave reflection module 6;

carrying out forward processing on the detected microwave signal to obtain a forward microwave signal;

carrying out reverse processing on the detected microwave signal to obtain a reverse microwave signal;

superposing the forward microwave signal and the reverse microwave signal to obtain a superposed signal, analyzing the superposed signal to generate a superposed curve, calculating the curvature of the superposed curve, and calculating according to the curvature to obtain a correction coefficient;

correcting the forward microwave signal according to the correction coefficient to obtain a target forward microwave signal;

inquiring a preset target forward microwave signal-humidity value data table according to the target forward microwave signal to obtain a corresponding humidity value;

a dehumidification module 8 disposed above the receptacle 202;

the control module 9 is respectively connected with the humidity value acquisition module 7 and the dehumidification module 8, and is used for:

receiving a plurality of humidity values within a preset time period sent by the humidity value acquisition module 7, and performing fitting processing to obtain a humidity change curve;

and calculating a change rate according to the humidity change curve, judging whether the change rate is greater than a preset change rate or not, and controlling the dehumidification module 8 to perform dehumidification operation on the jack when the change rate is determined to be greater than the preset change rate.

The forward processing is to amplify the amplitude of the received microwave signal in a forward equal proportion; the reverse processing is to amplify the amplitude of the received microwave signal in reverse direction and in equal proportion

Referring to fig. 12, the present invention provides a technical solution: the electric wire information acquisition module is arranged on an electric wire connected with the socket and used for acquiring electric wire information;

the second control module is connected with the electric wire information acquisition module and used for receiving the electric wire information of the electric wire information acquisition module, calculating the time length of the electric wire reaching the highest allowable temperature according to the electric wire information, judging whether the time length is less than the preset time length or not, and disconnecting the electric wire from the power supply connecting piece 102 when the time length is determined to be less than the preset time length;

the calculating the time length of the electric wire reaching the maximum allowable temperature according to the electric wire information comprises the following steps:

calculating a thermal growth coefficient Z of the wire:

wherein, I_cIs the effective value of the current in the transmission line of the electric wire; r_dAn equivalent resistance of a transmission line being an electric wire; k is the resistivity coefficient of the wire; t is_zThe maximum allowable temperature of the wire; t is_yIs the ambient temperature around the wire; j is the convection heat dissipation coefficient of the wire; n is the radiation heat dissipation coefficient of the wire;

calculating the thermal inertia coefficient F of the wire:

wherein m is the mass of the wire in unit length, and c is the equivalent specific heat capacity of the wire;

calculating the time length t of the wire reaching the maximum allowable temperature according to the thermal growth coefficient Z of the wire and the thermal inertia coefficient F of the wire:

wherein, T₀Is the temperature at which the wire is just conducting.

Wherein, the thermal growth coefficient is a coefficient describing the temperature of the electric wire to increase rapidly and slowly; the thermal inertia coefficient is a coefficient which takes time for heating the thermal contact to raise the temperature to a stable value after the thermal contact absorbs heat from the medium; the radiation heat dissipation coefficient is the amount of heat exchanged by radiation per unit area per unit time; the convective heat dissipation coefficient is the amount of heat per unit time and per unit area that is exchanged with nearby air by convection.

The invention provides a technical scheme that: the dehumidification module 8 comprises a thermosiphon for performing dehumidification operation on the jack;

the control module 9 is further configured to calculate a heat exchange coefficient of the thermosiphon and determine whether the heat exchange coefficient is greater than a preset heat exchange coefficient; when the heat exchange coefficient is determined to be larger than a preset heat exchange coefficient, reducing the flow velocity of the liquid stored in the thermosiphon pipe; increasing the flow rate of the liquid stored in the thermosiphon tube when it is determined that the heat exchange coefficient is less than a preset heat exchange coefficient;

calculating the heat exchange coefficient G of the thermosiphon:

wherein Q is the heat exchange quantity of the condensation end of the thermosiphon, T_MIs the saturation temperature of the liquid in the thermosiphon,and the average temperature of the wall surface of the condensation section of the thermosiphon is shown, R is the inner diameter of the thermosiphon, and L is the length of the condensation section.

According to the technical scheme, the invention has the following beneficial effects:

1. the invention is convenient to disassemble and replace the cover plate by arranging the corresponding mechanism of the existing multifunctional socket cover plate,

2. the situation that the cover plate falls off when the plug is inserted or pulled out is reduced, the safety of the socket in the using process is improved,

3. is convenient for maintenance personnel to open, shortens the opening time of the cover plate, thereby quickening the maintenance speed,

4. the probability of damage to the socket during opening is reduced, thereby reducing losses for the user.

5. The humidity signal is transmitted through the microwave signal, forward processing and reverse processing are carried out on the received microwave signal, the influence of noise on signal transmission can be eliminated, the humidity value at the jack can be accurately judged, when the humidity value is larger than a preset humidity threshold value, the dehumidification operation is carried out on the socket, the short circuit caused by humidity or even the fire can be effectively prevented, and the safety of the socket is greatly improved.

6. The electric wire connected with the socket is detected, the time length for the electric wire to reach the highest allowable temperature is calculated according to the thermal growth coefficient of the electric wire and the thermal inertia coefficient of the electric wire, so that the electric wire can be powered off before being damaged due to overheating of the electric wire, the possibility that the electric wire is burnt out or even a fire disaster is caused due to overhigh temperature caused by long-time electrification is effectively avoided, and the safety of the socket is greatly improved.

7. Through right the heat transfer coefficient of thermosiphon calculates, judges whether to be greater than and predetermine heat transfer coefficient to control the velocity of flow of liquid in the thermosiphon, when having guaranteed can effectively dehumidify the jack, also reduced the velocity of flow of liquid in the thermosiphon as far as, effectual extension the life of thermosiphon.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.