CN115513706A

CN115513706A - Waterproof circuit connector

Info

Publication number: CN115513706A
Application number: CN202210976497.5A
Authority: CN
Inventors: 许永德
Original assignee: Dongguan Biaobao Intelligent Technology Co ltd
Current assignee: Dongguan Biaobao Intelligent Technology Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-12-23

Abstract

The invention provides a waterproof circuit connector. The waterproof connector comprises a connecting base, a sealing cover and a connecting plug; the connecting base comprises a connecting boss, a protective fixing cover and a conductive rod; the lower end of the current conducting rod is inserted into the connecting boss, and the upper end of the current conducting rod extends upwards; the protective fixing cover is positioned on the periphery of the conductive rod and extends upwards from the surface of the connecting boss; a drain tank of the protective fixed cover; the sealing cover is of a cylinder structure; the connecting boss and the protective fixing cover are simultaneously in threaded sealing fit with the sealing cover; the connecting plug comprises a plug body and an electric connecting jack; when the end face of the plug body is matched with the surface of the connecting boss, the electric connecting jack is matched with the conductive rod. The waterproof circuit connector has two states, can keep the conductive rod separated from water, realizes waterproofing and ensures safety. Furthermore, the waterproof circuit connector can meet the requirements of various scenes while keeping water and safety.

Description

Waterproof circuit connector

Technical Field

The invention relates to a safe electric appliance technology, in particular to a waterproof circuit connector.

Background

With the development of electrical equipment technology, more and more electrical equipment utilizes a rechargeable storage battery to provide power for electrical equipment.

For electrical equipment such as pool cleaning machines and electric water pumps, the equipment is in an environment which is easy to contact water, such as water, underwater or damp. In order to ensure the reliability of circuit connection and avoid electric shock accidents, the circuits are generally connected to a circuit through a connector having a waterproof function, such as a waterproof socket.

The connector of current waterproof function mainly realizes through insulating and sealed, and insulating can avoid the circuit to contact with outside moist thing, and sealed water or liquid entering inside and conductive part contact of preventing, and then realize waterproof function.

But for circuits connected to rechargeable batteries, there are a number of scenarios that need to be met. For example, when charging a battery, it is necessary to connect to an external power supply; after charging is complete, its ports need to be sealed to avoid contact with external water, moisture, or other electrical conductors.

How to meet the requirements of various scenes of a connecting circuit becomes a technical problem to be solved by the current person in the field.

Disclosure of Invention

In view of the above technical problems, the present invention provides a waterproof connector that can satisfy various scene needs while securing water resistance.

The waterproof circuit connector provided by the invention comprises a connecting base, a sealing cover and a connecting plug;

the connecting base comprises a connecting boss, a protective fixing cover and a plurality of conducting rods; the lower end of the current conducting rod is inserted into the connecting boss, and the upper end of the current conducting rod extends upwards; the protective fixing cover is positioned on the periphery of the conductive rod and extends upwards from the surface of the connecting boss; the protective fixing cover at least forms a drain groove with the bottom not higher than the surface of the connecting boss;

the sealing cover is of a cylinder structure with a closed upper end and an open lower end; at least one part of the outer peripheral surface of the connecting boss and the outer peripheral surface of the protective fixing cover are simultaneously in threaded sealing fit with the inner surface of the sealing cover;

the connecting plug comprises a plug body and an electric connecting jack; when the end face of the plug body is matched with the surface of the connecting boss, the electric connecting jack is matched with the conductive rod.

This waterproof circuit connector has two kinds of states, the state of opening circuit, and sealed lid and connection base cooperation this moment seal the circuit port, realize waterproofly, avoid the accident. In the access state, the sealing cover is separated from the connecting base, and the electric connection jack of the connecting plug is matched with the conductive rod to realize electric connection; meanwhile, when the end face of the plug body of the connecting plug is matched with the surface of the connecting boss, the conductive rod is kept separated from water, water resistance is realized, and safety is guaranteed. Furthermore, the waterproof circuit connector can meet the requirements of various scenes while keeping water and safety.

In a further preferred technical scheme, the surface of the connecting boss can form a water-leaving convex step surrounding the conducting rod. Therefore, the water-separating convex steps can play a role in separating water, so that the possibility that the conducting rod is contacted with water is avoided or reduced, and the waterproof effect is improved.

In a preferred technical scheme, relative to the conducting rod, the upper surface of the step of the water-leaving bulge is a conical surface which is inclined downwards from inside to outside. Therefore, after water reaches the water-leaving convex steps, the water-leaving convex steps have the effect of dispersing all around, and the waterproof effect is improved.

In a further preferred technical scheme, the side surface of the plug body is in sealing fit with the side surface of the drain groove. The sealing cooperation of side forms a sealed guarantee under the access state, can improve water-proof effects, satisfies more scenes (like the occasion that humidity is higher) needs.

In a further preferred technical scheme, the side surface of the plug body is in sealing fit with the inner surface of the protective fixing cover; this forms a sealed guarantee, can improve water-proof effects and waterproof grade.

In a preferred technical scheme, the protective fixing cover forms two opposite hydrophobic grooves, and the two opposite hydrophobic grooves divide the protective fixing cover into a first protective fixing side wing and a second protective fixing side wing. The two opposite drainage grooves are formed, so that water or liquid in the protective fixing cover can be drained more quickly, and water accumulation in the protective fixing cover is avoided.

In an alternative scheme, the inner wall surface of the first protective fixing wing and one side surface of the plug body form first side sealing fit; and the inner wall surface of the second protective fixing side wing is in sealing fit with the other side surface of the plug body at the second side. The sealing guarantee formed in this way can improve the waterproof effect and the waterproof grade.

In an alternative embodiment, the first side sealing engagement and the second side sealing engagement may be symmetrically disposed. In the preferred technical scheme, the first side sealing fit and the second side sealing fit are asymmetrically arranged, so that the connection plug can be conveniently inserted and positioned, and the insertion error is avoided.

In the preferred technical scheme, a sealing ring is arranged between the peripheral surface of the connecting boss and the inner surface of the sealing cover, so that the waterproof effect and the waterproof grade can be improved.

Drawings

The present invention may be further described, and its equivalents substituted for all parts thereof, with reference to the accompanying drawings, which illustrate specific configurations of embodiments of the present invention. It should be noted that: other arrangements of the invention are possible and consequently the particularity of the accompanying drawings is not to be understood as superseding the generality of the proceeding description of the invention.

Fig. 1 is a schematic structural view of a waterproof connector provided in accordance with an embodiment of the present invention, which shows a state corresponding to the mating of a sealing cap;

fig. 2 is a schematic structural view of a waterproof connector provided in accordance with an embodiment of the present invention, illustrating a state in which a connection base is fitted to a connection plug;

FIG. 3 is a schematic structural view of a waterproof connector according to a second embodiment of the present invention, showing a state corresponding to the fitting of a sealing cap;

fig. 4 is a schematic structural view of a waterproof circuit connector provided in accordance with a second embodiment of the present invention, which shows a state in which a connection base is fitted to a connection plug.

Detailed Description

The embodiments provided in the present invention are described below with reference to the drawings. In this document, the use of directional terms such as "upper" and "lower" is to be understood with reference to the corresponding drawings.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a waterproof connector according to an embodiment of the present invention, illustrating a state where a connection base 100 is fitted to a sealing cap 200; fig. 2 is a schematic structural view of a waterproof connector provided in accordance with an embodiment of the present invention, which illustrates a state in which the connection base 100 is fitted to the connection plug 300.

The waterproof connector provided by the present invention includes a connection base 100, a sealing cap 200, and a connection plug 300.

As shown, the connection base 100 includes a connection boss 110, a protective fixing cover 130, and a plurality of conductive rods 120. In this embodiment, the connection boss 110 may be mounted in other suitable components for connection with circuit wires and may be raised upwardly to form a boss structure. In this embodiment, two conductive rods 120 are included, and the lower ends of the conductive rods 120 are inserted into the connection bosses 110 and connected with the internal wires to form a circuit. The upper end of the conductive rod 120 projects upward to mate with an electrical connection jack.

The protective fixing cover 130 is located at the outer circumference of the conductive rod 120 and protrudes upward from the surface of the connection boss 110 to form a protection against the conductive rod 120. Generally, the shield fixing cover 130 is slightly higher than the height of the conductive rod 120 to cover the conductive rod 120. As shown in the first embodiment, the protective fixing cover 130 forms a water-draining groove 131 whose bottom is not higher than the surface of the connecting boss 110, that is, the protective fixing cover 130 forms a part of a "gap" structure, so that when water or other liquid enters the protective fixing cover 130, the water is quickly drained and flowed out through the water-draining groove 131, and the water is prevented from accumulating in the protective fixing cover 130, thereby preventing the short circuit of the conductive rod 120, electric shock and other accidents. Of course, the shield fixing cover 130 may be formed with a plurality of water drainage grooves 131.

As shown in fig. 1, the sealing cap 200 has a cylindrical structure with a closed upper end and an open lower end. At least a portion of the outer circumferential surface of the coupling boss 110 and the outer circumferential surface of the shield fixing cover 130 are simultaneously screw-sealingly engaged with the inner surface of the sealing cover 200. That is, the inner wall of the sealing cover 200 is a cylindrical structure, and can be in sealing fit with the outer peripheral surface of the protective fixing cover 130 and the outer peripheral surface of the connecting boss 110.

As shown in fig. 2, the connection plug 300 includes a plug body and an electrical connection jack; corresponding electric wires are arranged in the plug body, and the electric connection jacks are electrically connected with the electric wires. When the end face of the plug body is engaged with the surface of the connection boss 110, the electrical connection jack is engaged with the conductive rod 120. In this embodiment, the number of electrical connection holes is equal to the number of conductive rods 120, and the electrical connection holes correspond to the conductive rods one by one.

Thus, the waterproof connector of the first embodiment has two states. Firstly, the state of opening a circuit, under this state, sealed lid 200 cooperates with connection base 100, seals the circuit port, realizes waterproofly, avoids the accident. Secondly, in the state of passage, the sealing cover 200 is separated from the connecting base 100, and the electric connecting jack of the connecting plug 300 is matched with the conductive rod 120 to realize electric connection; meanwhile, when the end surface of the plug body is engaged with the surface of the connection boss 110, the conductive rod 120 is kept separated from water, thereby achieving water resistance and ensuring safety. Furthermore, the waterproof circuit connector can meet the requirements of various scenes while preventing water and ensuring safety.

It is understood that, in the embodiment, the sealing cover 200, the connection base 100 and the plug body may be made of rubber materials, so that corresponding deformation may be generated when the sealing cover, the connection base and the plug body are matched, and good sealing performance is maintained.

As shown in fig. 1, in embodiment 1, the seal cover 200 is further provided with a wire 201 and a wire screw 202. The wire hanging screw 202 may be fixed in the corresponding part so that the sealing cover 200 is kept connected to the connection base 100 by the wire hanging 201. In the on state, the sealing cover 200 is separated from the connection base 100, the electrical connection jack of the connection plug 300 is engaged with the conductive rod 120, and the sealing cover 200 is attached to the connection base 100 by the hanging wire 201, so that the sealing cover 200 is engaged with the connection base 100 when the on state is converted into the off state.

In this embodiment, the surface of the connection boss 110 may form a water-leaving protruding step 112 around the conductive rod 120. Thus, the water-isolating raised step 112 can isolate water, thereby preventing or reducing the possibility of the contact between the conductive rod 120 and water, and improving the waterproof effect. In a further technical solution, the water-leaving projection step 112 may form a conical structure, that is, the upper surface of the water-leaving projection step 112 is a conical surface inclined downwards from inside to outside with respect to the conducting rod 120. Thus, after the water reaches the water-leaving convex step 112, the effect of dispersion to the periphery is achieved, and the waterproof effect is improved.

In the first embodiment, not only the end surface of the plug body is engaged with the surface of the connection boss 110 to form a seal, but also the side surface of the plug body is engaged with the side surface of the drain groove 131 to form a seal. That is, in the passage state, the plug body can compensate for the "notch" (i.e., the drainage groove 131) of the protective fixing cover 130 to form a side sealing fit. The sealing cooperation of side forms a sealed guarantee under the access state, can improve water-proof effects, satisfies more scenes (like the occasion that humidity is higher) needs.

In a further preferred technical scheme, the side surface of the plug body is in sealing fit with the inner surface 132 of the protective fixing cover 130; namely, a sealing guarantee is formed outside the connection of the conductive rod 120 and the electric connection jack, so that the waterproof effect and the waterproof grade can be improved. Thus, three sealing structures, namely, the water-leaving raised step 112, the side surface of the plug body and the inner surface 132 of the protective fixing cover 130, and the side surface of the plug body and the side surface of the hydrophobic groove 131 are in sealing fit, are formed.

In addition, a sealing ring 210 may be provided between the outer circumferential surface of the coupling boss 110 and the inner surface of the sealing cover 200, and the sealing ring 210 may be provided between the sealing ring 210 and the coupling boss 110 when the sealing ring and the coupling boss 110 are sealingly engaged in an open circuit state, thereby improving a waterproof effect and a waterproof grade.

Referring to fig. 3 and 4, fig. 3 is a schematic structural view of a waterproof connector according to a second embodiment of the present invention, illustrating a state where a connection base 100 is fitted to a sealing cap; fig. 4 is a schematic structural view of a waterproof circuit connector provided in accordance with a second embodiment of the present invention, which shows a state in which the connection base 100 is fitted to the connection plug 300.

Unlike the first embodiment, in this embodiment, the protective fixing cover 130 forms two opposite hydrophobic grooves 131, and the two opposite hydrophobic grooves 131 divide the protective fixing cover into a first protective fixing side wing 130a and a second protective fixing side wing 130b. The two opposite water drainage grooves 131 can drain water or liquid out of the protective fixing cover 130 more quickly, and water accumulation in the protective fixing cover (130) is avoided.

The arcs occupied by the first and second

protective fixing wings

130a and 130b in the circumferential direction may be equal. Meanwhile, the inner wall surface of the first protective fixing wing 130a can form a first side sealing fit with one side surface of the plug body; the inner wall surface of the second protective fixing flange 130b can form a second side sealing fit with the other side surface of the plug body. The sealing guarantee formed in this way can improve the waterproof effect and the waterproof grade. The first and second side sealing engagement may be symmetrically arranged such that, when the connection base 100 includes two conductor bars 120 (the conductor bars 120 are symmetrically arranged), the connection base 100 and the connection plug 300 may remain engaged regardless of whether they are right or wrong.

In certain cases, such as including three collector bars 120 (the collector bars 120 being asymmetrically disposed), the first side sealing engagement and the second side sealing engagement may be asymmetrically disposed; as shown in fig. 3 or 4, the inner surface of the first shield fixing wing 130a may be protruded in the direction of the thread center line, and the second shield fixing wing 130b may be recessed with respect to the thread center line. Meanwhile, in the plug body, the side facing the first shield fixing wing 130a is inwardly recessed and the side facing the second shield fixing wing 130b is outwardly protruded to form a fitting structure, respectively. Therefore, the connection plug 300 can be inserted into the connection base 100 only in a specific direction, so that the connection plug 300 can be conveniently inserted and positioned, and the insertion error is avoided, and the damage to components is avoided.

While there has been described in the foregoing description preferred embodiments of the present invention, it will be understood by those skilled in the technology concerned that many variations or modifications in details of design, construction or operation may be made without departing from the scope of the invention as claimed.

Claims

1. A waterproof circuit connector characterized by comprising a connection base (100), a sealing cover (300) and a connection plug (300);

the connecting base (100) comprises a connecting boss (110), a protective fixing cover (130) and a plurality of conducting rods (120); the lower end of the conducting rod (120) is inserted into the connecting boss (110), and the upper end of the conducting rod extends upwards; the protective fixing cover (130) is positioned at the periphery of the conductive rod (120) and upwards extends from the surface of the connecting boss (110); the protective fixing cover (130) at least forms a drainage groove (131) with the bottom not higher than the surface of the connecting boss (110);

the sealing cover (200) is of a cylinder structure with a closed upper end and an open lower end; at least one part of the outer peripheral surface of the connecting boss (110) and the outer peripheral surface of the protective fixing cover (130) are simultaneously in threaded sealing fit with the inner surface of the sealing cover (200);

the connecting plug (300) comprises a plug body and an electric connecting jack; when the end face of the plug body is matched with the surface of the connecting boss (110), the electric connecting jack is matched with the conductive rod (120).

2. The waterproof circuit connector according to claim 1, wherein the connecting boss (110) surface forms an off-water raised step (112) around the conductive rod (120).

3. The waterproof circuit connector according to claim 1, wherein, with respect to the conductive rod (120), the upper surface of the rising step (112) is a tapered surface inclined downward from inside to outside.

4. The waterproof circuit connector of claim 2, wherein the plug body side sealingly engages the hydrophobic channel (131) side.

5. The waterproof circuit connector of claim 4, wherein said plug body side surface sealingly engages an inner surface of a protective retaining cap (130).

6. The waterproof circuit connector according to claim 5, wherein the protective securing cover (130) forms two opposing hydrophobic slots (131), the two opposing hydrophobic slots (131) dividing the protective securing cover into a first protective securing flap (130 a) and a second protective securing flap (130 b).

7. The waterproof circuit connector of claim 6, wherein the inner wall surface of said first protective securing wing (130 a) forms a first side sealing engagement with a side surface of said plug body; the inner wall surface of the second protective fixing side wing (130 b) and the other side surface of the plug body form second side sealing fit.

8. The watertight circuit connector of claim 7 wherein the first and second side sealing engagements are symmetrically disposed.

9. The waterproof circuit connector of claim 7, wherein said first and second side sealing engagements are asymmetrically disposed.

10. The waterproof circuit connector according to any one of claims 1 to 9, wherein a seal ring (210) is provided between an outer peripheral surface of the connection boss (110) and an inner surface of the sealing cap (200).