CN213403641U

CN213403641U - Circuit board that water-proof effects is good

Info

Publication number: CN213403641U
Application number: CN202022791112.7U
Authority: CN
Inventors: 吴鹏飞
Original assignee: Huizhou Times Excellence Electronics Co ltd
Current assignee: Huizhou Times Excellence Electronics Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-06-08
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a circuit board that water-proof effects is good, including the circuit board body, the bottom side nestification of circuit board body is provided with spacing hood the top edge fixedly connected with sealing rubber ring of spacing hood, the top side of spacing hood is provided with the heat dissipation apron, closely paste tightly between the bottom of heat dissipation apron and the circuit board body, a plurality of water guide holes have evenly been seted up on the top of heat dissipation apron, the inside of heat dissipation apron corresponds the position of a plurality of water guide hole bottom sides and has all seted up water drainage tank, and link up each other between water drainage tank and the water guide hole, and is a plurality of link up each other between the water drainage tank. The utility model discloses in, water liquid can flow to the surface of heat dissipation apron along the sealed stopper of wire and toper to flow gradually to each water guide downthehole, flow in the downthehole water liquid of water guide and converge together and along water drainage tank discharge heat dissipation apron gradually through water drainage tank, thereby avoid water liquid direct flow to the circuit board body on.

Description

Circuit board that water-proof effects is good

Technical Field

The utility model relates to a circuit board technical field especially relates to a circuit board that water-proof effects is good.

Background

The circuit board has the name: the circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout;

at present, the existing circuit board is generally arranged in an insulating plastic shell, but because the circuit board needs to be externally connected with a lead, the shell on the outer side of the circuit board generally needs to be provided with corresponding hole sites, the possibility that the circuit board is soaked in water is greatly improved, and if waterproof glue is coated on the surface of the circuit board or a waterproof glue sleeve is sleeved on the surface of the circuit board, the heat dissipation performance of the circuit board is greatly reduced, and the service life of the circuit board is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a circuit board with good waterproof effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a circuit board that water-proof effects is good, includes the circuit board body, the bottom side nestification of circuit board body is provided with spacing under shield the sealed rubber ring of top edge fixedly connected with of spacing under shield, the top side of spacing under shield is provided with the heat dissipation apron, closely paste tightly between the bottom of heat dissipation apron and the circuit board body, a plurality of water guide holes have evenly been seted up on the top of heat dissipation apron, the inside of heat dissipation apron corresponds the position of a plurality of water guide hole bottom sides and has all seted up the water drainage tank, and link up each other between water drainage tank and the water guide hole, and is a plurality of link up each other between the water drainage tank, and run through between the lateral wall of water drainage tank and the heat dissipation apron that are close to heat dissipation apron edge, the equal fixedly connected with in position of the wiring end of the circuit board body.

As a further description of the above technical solution:

the inner bottom side two ends of the limiting bottom cover are provided with limiting bases, and the limiting bases are fixedly connected with the circuit board body through bolts.

As a further description of the above technical solution:

a plurality of positioning screw grooves are formed in the edge of the top end of the limiting bottom cover and the bottom ends of the sealing rubber ring and the heat dissipation cover plate, the positioning screw grooves penetrate through the bottom end of the limiting bottom cover, and every two positioning screw grooves are aligned to each other and are in threaded connection with fixing bolts.

As a further description of the above technical solution:

a plurality of ear plates are uniformly arranged at the edge of the outer side wall of the heat dissipation cover plate.

As a further description of the above technical solution:

a plurality of radiating fins are uniformly arranged at the top end of the radiating cover plate, and through grooves are formed in the positions, close to the sealing rubber plugs, of the radiating fins.

As a further description of the above technical solution:

the wiring end of circuit board body all welds there is the wire, and the embedding is connected and extends to the outside of heat dissipation apron between wire and the sealed plug.

The utility model discloses following beneficial effect has:

1. this circuit board that water-proof effects is good, water liquid can flow to the surface of heat dissipation apron along wire and the sealed stopper of gluing of toper to flow gradually to each water guide downthehole, flow in the downthehole water liquid of water guide and converge together and discharge the heat dissipation apron along the water drainage tank gradually through the water drainage tank, thereby avoid water liquid direct flow to the circuit board body on.

2. This circuit board that water proof effect is good, the water liquid that flows into the heat dissipation apron can lead away certain heat for heat radiation fins, is favorable to the heat dissipation apron to play certain supplementary radiating effect for the circuit board body to play the radiating effect for the circuit board body in the spacing end shield together with heat radiation fins on the heat dissipation apron, and then make this circuit board can use for a long time in humid environment.

Drawings

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

fig. 2 is a schematic top view of the heat dissipating cover plate of the present invention;

fig. 3 is a schematic view of the overlooking structure of the limiting bottom cover of the present invention.

Illustration of the drawings: 1. a circuit board body; 2. a limiting bottom cover; 3. a limiting base; 4. sealing the rubber ring; 5. positioning a screw groove; 6. a heat dissipation cover plate; 7. a water guide hole; 8. a water discharge tank; 9. an ear plate; 10. heat dissipation fins; 11. sealing the rubber plug; 12. and (4) conducting wires.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a circuit board with good waterproof effect comprises a circuit board body 1, wherein the bottom side of the circuit board body 1 is nested with a limit bottom cover 2, the edge of the top end of the limit bottom cover 2 is fixedly connected with a sealing rubber ring 4, the top side of the limit bottom cover 2 is provided with a heat dissipation cover plate 6, the bottom end of the heat dissipation cover plate 6 is tightly attached to the circuit board body 1, the top end of the heat dissipation cover plate 6 is uniformly provided with a plurality of water guide holes 7, the inside of the heat dissipation cover plate 6 is provided with water drainage grooves 8 corresponding to the bottom sides of the plurality of water guide holes 7, and link up each other between water drainage tank 8 and the water guide hole 7, link up each other between a plurality of water drainage tank 8, and run through between the lateral wall of water drainage tank 8 and the heat dissipation apron 6 that is close to 6 edges of heat dissipation apron, the equal fixedly connected with in position of the wiring end of the top of heat dissipation apron 6 corresponding circuit board body 1 seals plug 11, and seals plug 11 and be the toper setting.

The limiting bases 3 are arranged at two ends of the inner bottom side of the limiting bottom cover 2, and the limiting bases 3 are fixedly connected with the circuit board body 1 through bolts, so that the circuit board body 1 is conveniently installed on the limiting bases 3 through bolts, and the lifting circuit board body 1 is stably fixed on the limiting bases 3; a plurality of positioning screw grooves 5 are formed in the edge of the top end of the limiting bottom cover 2, the sealing rubber ring 4 and the bottom end of the heat dissipation cover plate 6, the positioning screw grooves 5 and the bottom end of the limiting bottom cover 2 are mutually penetrated, and each two aligned positioning screw grooves 5 are jointly in threaded connection with a fixing bolt, so that the fixing of the limiting bottom cover 2 on the bottom side of the heat dissipation cover plate 6 is facilitated by screwing the fixing bolts into the two aligned positioning screw grooves 5; a plurality of ear plates 9 are uniformly arranged at the edge of the outer side wall of the heat-radiating cover plate 6, so that the ear plates 9 are conveniently fixed in the insulating shell, and the heat-radiating cover plate 6 and the circuit board body 1 are fixed in the insulating shell; a plurality of radiating fins 10 are uniformly arranged at the top end of the radiating cover plate 6, and through grooves are formed in the positions, close to the sealing rubber plug 11, of the radiating fins 10, so that water liquid around the sealing rubber plug 11 can conveniently flow into the water guide holes 7 through the through grooves; wire 12 has all been welded to the wiring end of circuit board body 1, and the embedding is connected and is extended to the outside of heat dissipation apron 6 between wire 12 and the sealed plug 11, wears out wire 12 from sealed plug 11 in, is favorable to avoiding external water directly to flow the surface of circuit board body 1.

The working principle is as follows: when a circuit board with good waterproof effect is used, when external water permeates into the insulating shell, the water firstly flows to the surface of the heat dissipation cover plate 6 along the lead 12 and the conical sealing rubber plug 11, and gradually flows into each water guide hole 7 through the through grooves between the heat dissipation fins 10, the water liquid flowing into the water guide holes 7 gradually converges together through the drainage grooves 8 and is discharged out of the heat dissipation cover plate 6 along the drainage grooves 8, thereby preventing water from directly flowing onto the circuit board body 1, the water flowing into the heat dissipation cover plate 6 can conduct a certain amount of heat away from the heat dissipation fins 10, which is beneficial for the heat dissipation cover plate 6 to play a certain auxiliary heat dissipation role for the circuit board body 1, thereby playing a role of heat dissipation for the circuit board body 1 in the limiting bottom cover 2 together with the heat dissipation fins 10 on the heat dissipation cover plate 6, and further, the circuit board can be used in a humid environment for a long time, and has certain practicability.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. The utility model provides a circuit board that water-proof effects is good, includes circuit board body (1), its characterized in that: the bottom side of the circuit board body (1) is provided with a limit bottom cover (2) in a nested manner, the edge of the top end of the limit bottom cover (2) is fixedly connected with a sealing rubber ring (4), the top side of the limit bottom cover (2) is provided with a heat dissipation cover plate (6), the bottom end of the heat dissipation cover plate (6) is tightly attached to the circuit board body (1), the top end of the heat dissipation cover plate (6) is uniformly provided with a plurality of water guide holes (7), the inside of the heat dissipation cover plate (6) is provided with water drainage grooves (8) corresponding to the bottom sides of the plurality of water guide holes (7), the water drainage grooves (8) are communicated with the water guide holes (7), the water drainage grooves (8) are communicated with each other, the water drainage grooves (8) close to the edge of the heat dissipation cover plate (6) are communicated with the outer side wall of the heat dissipation cover plate (6), the top end of the heat dissipation cover plate (6) corresponding to the wiring end of the circuit board, and the sealing rubber plug (11) is arranged in a conical shape.

2. The circuit board with good waterproof effect according to claim 1, characterized in that: the inner bottom side two ends of the limiting bottom cover (2) are provided with limiting bases (3), and the limiting bases (3) are fixedly connected with the circuit board body (1) through bolts.

3. The circuit board with good waterproof effect according to claim 1, characterized in that: a plurality of positioning screw grooves (5) are formed in the top edge of the limiting bottom cover (2) and the bottom ends of the sealing rubber ring (4) and the heat dissipation cover plate (6), the positioning screw grooves (5) and the bottom ends of the limiting bottom cover (2) are mutually penetrated, and the positioning screw grooves (5) are aligned in every two modes and are connected with a fixing bolt through common threads.

4. The circuit board with good waterproof effect according to claim 1, characterized in that: a plurality of ear plates (9) are uniformly arranged at the edge of the outer side wall of the heat dissipation cover plate (6).

5. The circuit board with good waterproof effect according to claim 1, characterized in that: the top end of the radiating cover plate (6) is uniformly provided with a plurality of radiating fins (10), and the positions of the radiating fins (10) close to the sealing rubber plug (11) are provided with through grooves.

6. The circuit board with good waterproof effect according to claim 1, characterized in that: wire (12) are welded on the wiring end of the circuit board body (1), and the wire (12) and the sealing rubber plug (11) are embedded and connected and extend to the outer side of the heat dissipation cover plate (6).