CN212649147U - Charger with arc-proof function - Google Patents

Abstract

The utility model discloses a charger with prevent electric arc function, including shell, outer metal inserted sheet and main control circuit, the upper end fixed mounting in the shell runs through the outer metal inserted sheet, outer metal inserted sheet quantity is two, and the symmetric distribution, upper portion fixed mounting has contact controller in the shell, contact controller is located two outer metal inserted sheets between, contact controller has two output, and all fixed mounting has the inner contact piece, two the outside of inner contact piece all fixed mounting has the resistance, the lateral wall of resistance slides the inner that laminates outer metal inserted sheet, the lower part fixed mounting has main control circuit in the shell, main control circuit lower extreme welding has the USB interface; through the setting of resistance for when outer metal inserted sheet inserted the power, only can produce less electric current in the charger, realize the electric current cushioning effect, when avoiding then that outer metal inserted sheet inserts the power, have the heavy current to produce, avoided producing electric arc or electric spark then.

Description

Charger with arc-proof function

Technical Field

The utility model relates to a charger technical field, concrete field is a charger with prevent electric arc function.

Background

The charger is a common AC-DC conversion transformer, converts civil voltage into various required low voltages through the working mode of an internal electronic element, is always in a closed circuit state due to the characteristics of the internal working element, and is very easy to generate point discharge phenomenon due to the structure of an insertion piece and the structure in a power supply socket when contacting a power supply, namely electric arc and electric spark can be generated when the charger is inserted into the power supply;

the electric arc and the electric spark generated between the power supply and the plug-in piece of the charger have higher temperature, and have strong electric erosion destructiveness to the contact piece in the power supply and the plug-in piece of the charger, and when the electric spark and the electric arc are generated, an internal circuit of the charger can generate an unrelated impact current, so that the service life of the charger is greatly shortened, and therefore the charger with the electric arc preventing function is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a charger with prevent electric arc function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a charger with prevent electric arc function, includes shell, outer metal inserted sheet and main control circuit, the outer metal inserted sheet that upper end fixed mounting in the shell runs through, outer metal inserted sheet quantity is two, and the symmetric distribution, upper portion fixed mounting has contact controller in the shell, contact controller is located two the outer metal inserted sheet between, contact controller has two outputs, and equal fixed mounting has interior contact piece, two the equal fixed mounting in outside of interior contact piece has resistance, the inner of the outer metal inserted sheet of the lateral wall sliding fit of resistance, lower part fixed mounting has main control circuit in the shell, the welding of main control circuit lower extreme has the USB interface, the USB interface extends to the shell lower extreme outside.

Preferably, the end of the resistor near the inner contact piece is electrically connected with the contact controller, and the inner contact piece is electrically connected with the main control circuit.

Preferably, the contact controller includes basic fixed plate and spacing slide bar, the rear edge integrated into one piece of basic fixed plate has the roof, the upper surface rear portion fixed mounting of basic fixed plate has the electro-magnet, the upper surface front portion slidable mounting of basic fixed plate has the balladeur train, the balladeur train passes through spring coupling with the roof, the rear surface fixed mounting of balladeur train has the permanent magnet, basic fixed plate upper surface bilateral symmetry fixed mounting has spacing sliding sleeve, spacing slide bar runs through the rear surface of spacing sliding sleeve rear fixed mounting balladeur train.

Preferably, a clamping groove is formed between the inner wall of the shell and the main control circuit.

Preferably, the lower surface of the resistor is fixedly provided with a limiting block, and the limiting block is of an L-shaped structure.

Preferably, the position of the electromagnet corresponds to the position of the permanent magnet.

Compared with the prior art, the beneficial effects of the utility model are that: through the setting of resistance for when outer metal inserted sheet inserted the power, only can produce less electric current in the charger, realize the electric current cushioning effect, when avoiding then that outer metal inserted sheet inserts the power, have the heavy current to produce, avoided producing electric arc or electric spark then.

Drawings

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

fig. 2 is a schematic top view of the contact controller of the present invention;

FIG. 3 is a schematic view of the resistor and stopper combination of the present invention;

fig. 4 is the utility model discloses a resistance and stopper combination look at the structure schematic diagram.

In the figure: 1. the device comprises a shell, 2, an outer metal insertion piece, 3, a contact controller, 31, a base fixing plate, 32, a top plate, 33, a spring, 34, an electromagnet, 35, a limiting slide rod, 36, a permanent magnet, 37, a sliding frame, 38, a limiting slide sleeve, 4, a resistor, 5, an inner contact piece, 6, a main control circuit, 7, a USB interface, 8, a clamping groove, 9 and a limiting block.

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, the present invention provides a technical solution: a charger with an arc-preventing function comprises a shell 1, an outer metal insert 2 and a main control circuit 6, wherein the shell 1 is an external protection basic structure of the utility model, the outer metal insert 2 adopts a universal metal insert and a structure contacted with a power supply, the main control circuit 6 is the integral name of a circuit for current conversion in the existing transformer, the outer metal insert 2 which is penetrated through is fixedly arranged at the upper end in the shell 1 to realize the effective fixation of the outer metal insert 2, and simultaneously, an external power supply is led into the interior of the utility model when in use, the number of the outer metal inserts 2 is two, and the outer metal inserts are symmetrically distributed to use electrodes, a contact controller is fixedly arranged at the upper part in the shell 1, the inner contact piece 5 is moved by the internal structure of the contact controller, the contact controller 3 is positioned between the two outer metal inserts 2, the contact controller 3 is provided with two output ends, and equal fixed mounting has interior contact piece 5, through the control of contact controller 3, realizes the contact and the separation of outer metal insertion piece 2, simultaneously for resistance 4 provides the installation basis, and electrically conductive path, two the equal fixed mounting in outside of interior contact piece 5 has resistance 4, and resistance 4 adopts the solid resistance of charcoal 4, and its resistance can be adjusted along with length variation, the inner of outer metal insertion piece 2 of the lateral wall sliding fit of resistance 4 realizes effectual circuit intercommunication, lower part fixed mounting has main control circuit 6 in the shell 1, and circuit and electronic component through in it transform the voltage of output into, the welding of 6 lower extremes of main control circuit has USB interface 7, USB interface 7 extends to the outside of 1 lower extreme of shell, conveniently connects the external line.

Through whole equipment back, contact controller 3 control internal contact piece 5 and the relative position of resistance 4 and outer metal inserted sheet 2 on it, realize the adjustment of resistance and the change of break-make way then, make whole device after inserting the power then, the current change is steady, then makes main control circuit 6 can be in good protected state, after outer metal inserted sheet 2 inserts the power, the utility model discloses internal main control circuit 6 all is in the weak current access state with contact controller 3, through contact controller 3's control for the inner relative distance of internal contact piece 5 and outer metal inserted sheet 2 reduces gradually, and is closed until contacting completely.

Specifically, the end of the resistor 4 near the inner contact piece 5 is electrically connected to the contact controller 3, and the inner contact piece 5 is electrically connected to the main control circuit 6.

The contact controller 3 is electrically connected through the resistor 4, when the distance between the resistor 4 and the inner end of the outer metal insertion sheet 2 changes, the introduced current gradually changes, so that the contact controller 3 realizes feedback control, and the inner contact sheet 5 is electrically connected with the main control circuit 6 to realize effective main circuit connection.

Specifically, the contact controller 3 includes a base fixing plate 31 and a limit slide bar 35, a top plate 32 is integrally formed at the rear edge of the base fixing plate 31, the base fixing plate 31 is an installation base of the whole contact control, the top plate 32 is a limit structure working in cooperation with a spring 33 and a carriage 37, two electromagnets 34 are fixedly installed at the rear part of the upper surface of the base fixing plate 31, and are symmetrically provided with two sides of the spring 33, the rear end of the electromagnet 34 contacts the front side wall of the top plate 32 and is electrically connected with a resistor 4, the front part of the upper surface of the base fixing plate 31 is slidably provided with the carriage 37, which is a control result output structure of the contact controller 3, two ends of the control result output structure extend out of the contact controller 3, by sliding, inner contact pieces 5 installed at two ends of the control result output structure are controlled, the carriage 37 is connected with the top plate 32 through the spring 33, the buffer of the traveling, simultaneously to resetting power supply, the rear surface fixed mounting of balladeur train 37 has permanent magnet 36, and cooperation electro-magnet 34 carries out mutual absorption and uses, basic fixed plate 31 upper surface bilateral symmetry fixed mounting has spacing sliding sleeve 38, carries on spacingly to spacing slide bar 35, avoids the slippage, spacing slide bar 35 runs through spacing sliding sleeve 38 back fixed mounting balladeur train 37's rear surface, and is spacing to the slip of balladeur train 37, avoids the slippage.

After resistance 4 circular telegram, current introduction electro-magnet 34, electro-magnet 34 produces the magnetic field, attract permanent magnet 36 to carry out relative motion, then drive balladeur train 37 and slide, along with balladeur train 37's motion for the relative distance diversion in inner contact piece 5 and resistance 4 and outer metal inserted sheet 2's the inner, then the current increases, electro-magnet 34 magnetic field reinforcing, further adsorb permanent magnet 36, the feedback circulation each other, until inner contact piece 5 contacts the inner of outer metal inserted sheet 2 completely, make and switch on, after the outage, reset through spring 33.

Specifically, a clamping groove 8 is arranged between the inner wall of the shell 1 and the main control circuit 6.

Through the setting of draw-in groove 8 for main control circuit 6 leaves the buffering clearance with the inner part, makes when the charger falls, and after shell 1 collided ground, through buffering clearance protection main control circuit 6, avoid the collision, makes circuit damage and electronic component's the droing.

Specifically, the lower surface of the resistor 4 is fixedly provided with a limiting block 9, and the limiting block 9 is of an L-shaped structure.

Stopper 9 is insulating material, through self structure and with resistance 4's cooperation, constitutes a class spout structure for resistance 4 can the effectual lateral wall of laminating outer metal inserted sheet 2, avoids appearing contact failure's problem.

Specifically, the position of the electromagnet 34 corresponds to the position of the permanent magnet 36.

The correspondence of the positions, and the mutual attraction of the magnetic poles cooperate to allow the effective controlled movement of the multi-carriage 37.

The working principle is as follows: when the electromagnetic switch is used, when the outer metal inserting piece 2 is inserted into a power supply, the resistor 4 divides voltage through self large resistance effect, so that the current is reduced, the weak current enables the electromagnet 34 to generate a weak magnetic field, the sliding frame 37 is pulled to move by being matched with the permanent magnet 36, then the inner contact piece 5 and the resistor 4 are moved, the relative distance between the inner end of the outer metal inserting piece 2 and the inner end of the resistor 4 is shortened, the acting resistance of the resistor 4 is reduced, the current is increased, the magnetic field of the electromagnet 34 is enhanced, the action between the electromagnet 34 and the permanent magnet 36 is enhanced, meanwhile, the relatively close movement is buffered through the spring 33, through the feedback circulation, the inner end of the inner contact piece 5 which is bent and contacts the outer metal inserting piece 2 is ended, and effective work is realized through the action;

when the charging is finished, after the outer metal insert 2 is pulled out of the power supply, the power supply is stopped, the action of the permanent magnet 36 and the electromagnet 34 is finished, the spring 33 resets and rebounds the carriage 37, and then the relative distance between the resistor 4 and the outer metal insert 2 is maximized so as to be used next time.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model is including the conventional connected mode of circuit connection adoption conventional among the prior art, and here detailed description is not again.

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 (6)

1. The utility model provides a charger with prevent electric arc function, includes shell (1), outer metal male tab (2) and master control circuit (6), its characterized in that: outer metal inserted sheet (2) that upper end fixed mounting in shell (1) runs through, outer metal inserted sheet (2) quantity is two, and the symmetric distribution, upper portion fixed mounting has contact controller (3) in shell (1), contact controller (3) are located two outer metal inserted sheet (2) between, contact controller (3) have two outputs, and equal fixed mounting has interior contact piece (5), two the equal fixed mounting in outside of interior contact piece (5) has resistance (4), the inner of the outer metal inserted sheet (2) of the lateral wall sliding fit of resistance (4), lower part fixed mounting has main control circuit (6) in shell (1), main control circuit (6) lower extreme welding has USB interface (7), USB interface (7) extend to shell (1) lower extreme outside.

2. The charger with an arc-preventing function as claimed in claim 1, wherein: the end, close to the inner contact piece (5), of the resistor (4) is electrically connected with the contact controller (3), and the inner contact piece (5) is electrically connected with the main control circuit (6).

3. The charger with an arc-preventing function as claimed in claim 1, wherein: contact controller (3) include basic fixed plate (31) and spacing slide bar (35), the rear edge integrated into one piece of basic fixed plate (31) has roof (32), the upper surface rear portion fixed mounting of basic fixed plate (31) has electro-magnet (34), the upper surface front portion slidable mounting of basic fixed plate (31) has balladeur train (37), balladeur train (37) are connected through spring (33) with roof (32), the rear surface fixed mounting of balladeur train (37) has permanent magnet (36), basic fixed plate (31) upper surface bilateral symmetry fixed mounting has spacing sliding sleeve (38), spacing slide bar (35) run through spacing sliding sleeve (38) after fixed mounting in the rear surface of balladeur train (37).

4. The charger with an arc-preventing function as claimed in claim 1, wherein: a clamping groove (8) is arranged between the inner wall of the shell (1) and the main control circuit (6).

5. The charger with an arc-preventing function as claimed in claim 1, wherein: the lower surface fixed mounting of resistance (4) has stopper (9), stopper (9) are L type structure.

6. The charger with an arc-preventing function as claimed in claim 3, wherein: the position of the electromagnet (34) corresponds to the position of the permanent magnet (36).

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