CN110213939A - Fan destatics mechanism - Google Patents

Abstract

Mechanism is destaticed the invention discloses a kind of fan, including metab, electronic system where wiring board and fan, the metab is fixedly installed in the outline border of fan, metab and the ground terminal of electronic system are electrically connected, the wiring board of fan is fixedly installed on metab, wiring board uper side surface is equipped with the electrostatic collection point of at least one protrusion, the electrostatic collection point and metab are electrically connected, the present invention in fan drum by being arranged metab, and assist side upper layer setting electrostatic collection point carries out electrostatic collection, the electrostatic that electrostatic collection point is collected quickly is displaced into the ground terminal of electronic system by route in wiring board and metab, realize electrostatic safety discharge, avoid damage of the electrostatic to electronic component in fan, fan normal operation has been effectively ensured, improve fan service life and heat dissipation effect.

Description

Fan anti-static mechanism

technical field

The invention relates to a fan, in particular to a static elimination mechanism of the fan.

Background technique

Fans are generally used in electronic equipment to dissipate heat. Fans tend to generate static electricity during operation. Static electricity can cause great damage to electronic components in fans and may cause damage to fans, thereby affecting the cooling effect of the system.

Contents of the invention

In order to overcome the above defects, the present invention provides a static elimination mechanism for the fan, which can safely discharge the static electricity in the fan to the ground terminal of the electronic system, so as to ensure the service life and heat dissipation effect of the fan.

The technical solution adopted by the present invention in order to solve the technical problem is: a static elimination mechanism for a fan, including a metal base, a circuit board and an electronic system where the fan is located, the metal base is fixedly installed in the outer frame of the fan, and the metal base It is electrically connected to the ground terminal of the electronic system, and the circuit board of the fan is fixedly installed on the metal base. At least one raised static collection point is provided on the upper surface of the circuit board, and the static collection point is electrically connected to the metal base.

As a further improvement of the present invention, the circuit board is a multi-layer structure of at least two layers, the lower layer of the circuit board is electrically connected to the metal base, the static collection point is located on the upper surface of the circuit board, and the static collection point on the upper layer of the circuit board passes through the circuit and the circuit. The lower layer of the board is electrically connected.

As a further improvement of the present invention, the electrostatic collection point on the circuit board is one or more combinations of bump shape, needle shape, hemispherical shape and column shape.

As a further improvement of the present invention, the metal base forms the bottom plate of the outer frame of the fan.

As a further improvement of the present invention, a fixing ring for fixing the shaft sleeve is formed on the metal base.

As a further improvement of the present invention, the metal base and the shaft sleeve of the fan form an integral structure through injection molding.

As a further improvement of the present invention, at least one wiring hole is provided on the metal base, and the wiring hole is electrically connected to the ground terminal of the electronic system through a cable.

The beneficial effects of the present invention are: the present invention sets a metal base in the fan casing, and sets a static collection point on the upper layer of the circuit board to collect static electricity. The grounding terminal of the system realizes the safe discharge of static electricity, avoids the damage of static electricity to the electronic components in the fan, effectively ensures the normal operation of the fan, and improves the service life and heat dissipation effect of the fan.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the present invention;

Fig. 2 is the schematic diagram of circuit board structure principle of the present invention;

Fig. 3 is a schematic diagram of the fan structure of the present invention.

Metal Base---1 Circuit Board---2 Static Collection Point---3

Upper layer of circuit board---4 Line---5 Lower layer of circuit board---6

Fixing ring ---7 Wiring hole ---8 Wear plate ---9

Coil group---10 Shaft sleeve---11 Bearing---12

Buffer---13 Fixed ring---14 Rotor group---15

Electronic components---16

Detailed ways

Embodiment: A static electricity removal mechanism for a fan, including a metal base 1, a circuit board 2 and an electronic system where the fan is located, the metal base 1 is fixedly installed in the outer frame of the fan, and the metal base 1 is electrically connected to the ground terminal of the electronic system The circuit board 2 of the fan is fixedly installed on the metal base 1, and at least one raised static collection point 3 is provided on the upper surface of the circuit board 2, and the static collection point 3 is electrically connected with the metal base 1.

The static electricity generated when the fan is working is captured by the static electricity collection point 3 on the circuit board, and transmitted to the ground terminal of the electronic system through the metal base 1, so as to achieve the effect of safe discharge of static electricity from the fan and avoid damage to the electronic components in the fan by the static electricity inside the fan , to avoid damage to the fan and ensure the cooling effect of the fan.

The circuit board 2 is a multi-layer structure of at least two layers, the lower layer 6 of the circuit board is electrically connected to the metal base 1, the static collection point 3 is located on the surface of the upper layer 4 of the circuit board, and the static collection point 3 of the upper layer 4 of the circuit board passes through the line 5 and The circuit board lower layer 6 is electrically connected. For the circuit board 2 with a multi-layer structure, the uppermost layer is provided with an electrostatic collection point 3, and the lowermost layer is electrically connected with the metal base 1, and the circuit is arranged in the circuit board 2 to connect the circuit board. The electrostatic collection point 3 of 2 is electrically connected with the bottom layer, and then realizes the electrical connection between the electrostatic collection point 3 and the metal base 1. The structure is simple, the connection is convenient, and it can prevent the circuit in the circuit board 2 from being damaged when the fan rotates at high speed. winding.

The electrostatic collection point 3 on the circuit board 2 is one or more combinations of bump shape, needle shape, hemispherical shape and column shape.

The metal base 1 forms the bottom plate of the outer frame of the fan. It not only realizes the safe discharge of static electricity, but also does not increase the thickness of the fan.

A fixing ring 7 for fixing the shaft sleeve is formed on the metal base 1 . The installation and positioning of the shaft sleeve is realized through the structure of the fixing ring 7, and the positioning structure is stable.

The metal base 1 and the shaft sleeve of the fan form an integral structure through injection molding. The shaft sleeve may be combined with the base by injection molding, or the shaft sleeve may be injection molded on the base.

The metal base 1 is provided with at least one wiring hole 8, and the wiring hole 8 is electrically connected to the ground terminal of the electronic system through a cable.

Claims (7)

1. a kind of fan destatics mechanism, it is characterised in that: including the electricity where metab (1), wiring board (2) and fan Subsystem, the metab are fixedly installed in the outline border of fan, and the ground terminal of metab and electronic system is electrically connected, The wiring board of fan is fixedly installed on metab, and wiring board uper side surface is equipped with the electrostatic collection point of at least one protrusion (3), the electrostatic collection point and metab are electrically connected.

2. fan according to claim 1 destatics mechanism, it is characterised in that: the wiring board is at least two layers more Layer structure, wiring board lower layer and metab are electrically connected, and electrostatic collection point is located at wiring board upper layer (4) surface, on wiring board The electrostatic collection point of layer is electrically connected by route (5) and wiring board lower layer (6).

3. fan according to claim 1 destatics mechanism, it is characterised in that: the electrostatic collection point on the wiring board For one of convex dot shape, needle-shaped, hemispherical, column or multiple combinations.

4. fan according to claim 1 destatics mechanism, it is characterised in that: the metab forms fan outline border Bottom plate.

5. fan according to claim 2 destatics mechanism, it is characterised in that: be formed with and be used on the metab The fixed ring (7) of fixed hub.

6. fan according to claim 5 destatics mechanism, it is characterised in that: the axle sleeve of the metab and fan Integral structure is formed by injection molding manner.

7. fan according to claim 1 destatics mechanism, it is characterised in that: the metab is equipped at least one A wiring hole (8), the wiring hole are electrically connected by cable and the ground terminal of electronic system.