New energy charging gun capable of preventing short circuit

Abstract

The utility model discloses an anti-short circuit new energy charging gun, the anti-short circuit new energy charging gun comprises a housing and a cable which are formed by integrated injection molding, the housing is provided with a wire hole for the cable to enter, the wire hole is provided with a counter bore, the counter bore is provided with a support member, the support member is provided with a tightening part, the tightening part is provided with a rubber member, and the rubber member is connected with the housing. The cable penetrates through the rubber part, the supporting part is in threaded connection with a locking nut, and downward force is applied to the rubber part, so that the rubber part is tightly attached to the surface of the cable. The sealing performance of the first clamping piece and the second clamping piece during clamping is enhanced through the first sealing ring and the second sealing ring, which is a first sealing measure; by rotating the locking nut, the rubber part is guided by the tightening part to be extruded and deformed, a gap between the rubber part and the cable is filled, external humid air is prevented from entering the shell, short circuit of a circuit is avoided, the service life is effectively prolonged, and the product has the advantages of good sealing performance and short circuit prevention.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging gun technical field especially relates to a new energy charging gun of preventing short circuit. BACKGROUND

[0002] Electric vehicle (BEV) refers to the vehicle that uses the on-board power supply as power, uses the motor to drive the wheel to travel and meets the requirements of road traffic and safety regulations. Since the electric vehicle has relatively small influence on the environment compared with the traditional vehicle, its prospect is widely optimistic. In recent years, the popularity rate of electric vehicle is higher and higher, and how to charge the electric vehicle timely and effectively also comes with it. As a kind of equipment specially used for facilitating the timely charging of electric vehicle and other products, the charging pile has been widely concerned and recognized since it was put into use.

[0003] When the charging gun is in a humid environment for a long time, the humid air enters the gun from the connection gap between the cable and the tail of the charging gun, and the humid air can cause the circuit board or connector inside the charging gun to be damp, thereby causing short circuit and safety hazards. Therefore, the applicant has made beneficial design and found a method to solve the above problems. The technical scheme to be introduced below is generated in this background. SUMMARY

[0004] The utility model discloses a purpose to overcome the deficiency of the traditional new energy charging gun design, provide a kind of product with good sealing, prevent short circuit.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] A kind of new energy charging gun of preventing short circuit, including the shell of integrally injection molding, cable, the shell is equipped with the line hole for cable to enter, the line hole is equipped with counterbore, the counterbore is equipped with support piece, the support piece is equipped with shrinkage, the shrinkage is equipped with rubber piece, the cable passes through rubber piece, the support piece is screw-threaded with lock nut, and applies the force to rubber piece downwards, so that rubber piece is closely attached to the surface of cable, the outer wall of the line hole is equipped with the first clamping piece for clamping cable, second clamping piece, and mutually abut, the first clamping piece, second clamping piece are equipped with first sealing ring, second sealing ring, and are set on the outer wall of cable.

[0007] Preferably, the bottom of the counterbore is provided with a stop portion and abuts against the shrinkage portion.

[0008] Preferably, the outer wall of the line hole is provided with at least two grooves.

[0009] Preferably, the first clamping piece and the second clamping piece are provided with protrusions and are embedded in the grooves, the protrusions and the two sides of the grooves abut against each other, and the first clamping piece and the second clamping piece are provided with at least two mounting holes.

[0010] Preferably, the outer wall of the support is provided with an external thread groove and is threadedly connected to the inner wall of the wire hole.

[0011] Preferably, the constricting part is provided in a taper shape which is constricted towards the center, and the rubber part is provided with an abutting part and abuts against the constricting part.

[0012] Advantages:

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses, through first sealing ring, second sealing ring strengthens the sealing property when first clamping piece, second clamping piece are combined, prevents the outside damp air from entering the wire hole, and this is the first sealing measure;Through the rotation locking nut makes the rubber part lower pressure, and the rubber part is guided by the constricting part and further extrusion deformation, fills the gap between the rubber part and cable, prevents the damp air from entering the shell, and this is the second sealing measure, through the double sealing measure, guarantees the circuit board, electric element or electronic element in the shell, and the damp air is eroded, on the basis of avoiding the circuit short circuit, effectively prolongs the service life, and the product has the advantages of good sealing, prevents the short circuit. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the side surface section structure schematic diagram of a new energy charging gun of the utility model of preventing short circuit;

[0016] Figure 2 It is the utility model Figure 1 of preventing short circuit A partial enlarged view of a new energy charging gun of the utility model;

[0017] Figure 3 It is the explosion drawing of a new energy charging gun of the utility model of preventing short circuit;

[0018] The corresponding relationship between the annotations of each drawing in the drawing and the component name is as follows:

[0019] Reference signs: 1, shell;2, cable;3, support;4, rubber part;5, locking nut;6, first clamping piece;7, second clamping piece;8, convex part;9, mounting hole;91, first sealing ring;92, second sealing ring;11, wire hole;12, counterbore;13, stop part;14, recess;31, constricting part;32, external thread groove;41, abutting part. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments, and obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the present utility model.

[0021] In the description of the present utility model, it should be understood that the directions or position relations indicated by the terms "upper", "lower", "left", "right" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the present utility model.

[0022] In the embodiments of the present utility model, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0023] Reference example Figures 1 to 3 A new energy charging gun capable of preventing short circuit, comprising a shell 1 integrally injection molded, a cable 2, the shell 1 is provided with a wire hole 11 for the cable 2 to enter, the wire hole 11 is provided with a counterbore 12, the counterbore 12 is provided with a supporting piece 3, the supporting piece 3 is provided with a shrinkage part 31, the shrinkage part 31 is provided with a rubber piece 4, the cable 2 passes through the rubber piece 4, the supporting piece 3 is threadedly connected with a locking nut 5, and a downward force is applied to the rubber piece 4, so that the rubber piece 4 is tightly attached to the surface of the cable 2, the outer wall of the wire hole 11 is provided with a first clamping piece 6 and a second clamping piece 7 for clamping the cable 2, and the first clamping piece 6 and the second clamping piece 7 abut against each other, the first clamping piece 6 and the second clamping piece 7 are provided with a first sealing ring 91 and a second sealing ring 92 inside and are sleeved on the outer wall of the cable 2, the shell 1 integrally injection molded reduces the position where the gap is generated, effectively improves the moisture-proof effect, and the first sealing ring 91 and the second sealing ring 92 strengthen the sealing performance of the first clamping piece 6 and the second clamping piece 7 when the first clamping piece 6 and the second clamping piece 7 are clamped, thereby preventing external humid air from entering the wire hole 11, which is the first sealing measure;

[0024] It is worth mentioning that the bottom of the counterbore 12 is provided with a blocking part 13 abutting against the shrinkage part 31, and the blocking part 13 limits the distance between the supporting piece 3 and the counterbore 12;

[0025] It is worth mentioning that the outer wall of the wire hole 11 is provided with at least two grooves 14, and the grooves 14 prevent the first clamping piece 6 and the second clamping piece 7 from being separated from the grooves 14;

[0026] It is worth mentioning that the first clamping part 6 and the second clamping part 7 are provided with protrusions 8 and are embedded in the grooves 14, the protrusions 8 abut against both sides of the grooves 14, the first clamping part 6 and the second clamping part 7 are provided with at least two mounting holes 9, the protrusions 8 are embedded in the grooves 14 to form a labyrinth seal structure, and the sealing performance is further improved, the first clamping part 6 and the second clamping part 7 form a clamping force for clamping the cable 2 through the mounting holes 9, and the cable 2 is fixed to prevent being pulled out of the wire hole 11;

[0027] It is worth mentioning that the outer wall of the support part 3 is provided with an external thread groove 32 and is threadedly connected to the inner wall of the wire hole 11;

[0028] It is worth mentioning that the shrinkage part 31 is tapered to the center, the rubber part 4 is provided with an abutting part 41 and abuts against the shrinkage part 31, the taper is large at the top and small at the bottom, the rubber part 4 is pressed downward by rotating the locking nut 5, the abutting part 41 is guided by the shrinkage part 31 and is further deformed, the gap between the rubber part 4 and the cable 2 and the gap between the rubber part 4 and the shrinkage part 31 are filled, and the humid air is prevented from entering the shell 1, which is the second sealing measure, through the above-mentioned double sealing measures, the circuit board, the conductive part and other electrical elements or electronic elements in the shell 1 are prevented from being eroded by the humid air, and the service life is effectively prolonged on the basis of avoiding the circuit short circuit.

[0029] The above design scheme can realize the advantages of good sealing performance and short circuit prevention.

[0030] The above content is further detailed in combination with the specific embodiments, and the specific embodiments of the utility model cannot be limited to these descriptions, and the ordinary skilled in the art of the utility model can make some simple deductions or substitutions without departing from the concept of the utility model, and all should be regarded as belonging to the protection range determined by the claims of the utility model.

Claims

1. A new energy charging gun with short circuit prevention function, comprising an integrally injection-molded shell (1) and a cable (2), characterized in that: The shell (1) is provided with a wire hole (11) for the cable (2) to enter, the wire hole (11) is provided with a counterbore (12), the counterbore (12) is provided with a support (3), the support (3) is provided with a shrinkage part (31), the shrinkage part (31) is provided with a rubber part (4), the cable (2) passes through the rubber part (4), the support (3) is threadedly connected with a locking nut (5), and a downward force is applied to the rubber part (4), so that the rubber part (4) is tightly attached to the surface of the cable (2), the outer wall of the wire hole (11) is provided with a first clamping part (6) and a second clamping part (7) for clamping the cable (2), and the first clamping part (6) and the second clamping part (7) abut against each other, the first clamping part (6) and the second clamping part (7) are provided with a first sealing ring (91) and a second sealing ring (92) and are sleeved on the outer wall of the cable (2).

2. The short-circuit prevention new energy charging gun according to claim 1, characterized in that: The bottom of the counterbore (12) is provided with a stop portion (13) and abuts against the shrinkage part (31).

3. The short-circuit prevention new energy charging gun according to claim 1, characterized in that: The outer wall of the wire hole (11) is provided with at least two grooves (14).

4. The short-circuit prevention new energy charging gun according to claim 3, characterized in that: The first clamping part (6) and the second clamping part (7) are provided with a convex part (8) and are embedded in the groove (14), the convex part (8) and the two sides of the groove (14) abut against each other, and the first clamping part (6) and the second clamping part (7) are provided with at least two mounting holes (9).

5. The short-circuit prevention new energy charging gun according to claim 2, characterized in that: The outer wall of the support (3) is provided with an external thread groove (32) and is threadedly connected to the inner wall of the wire hole (11).

6. The short-circuit prevention new energy charging gun according to claim 5, characterized in that: The shrinkage part (31) is provided as a taper that shrinks to the center, and the rubber part (4) is provided with an abutting portion (41) and abuts against the shrinkage part (31).

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