CN210201489U

CN210201489U - Combination switch

Info

Publication number: CN210201489U
Application number: CN201921478206.XU
Authority: CN
Inventors: Zhibiao Xie; 谢志彪
Original assignee: Foshan Shunyuan Electric Power Equipment Co Ltd
Current assignee: Foshan Shunyuan Electric Power Equipment Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-03-27
Anticipated expiration: 2029-09-05

Abstract

The utility model relates to a combination switch, including bottom plate, circuit board and shell body, the shell body set up in the bottom plate upper surface, the circuit board is located the shell body inside, the terminal surface that the bottom plate deviates from the shell body is equipped with the heat dissipation shell, the heat dissipation shell is installed towards the terminal surface of bottom plate and is dispelled the heat the fan, the heat dissipation fan includes base and fan wheel, the fan wheel is installed in the base, the base detachable install in the heat dissipation shell, the heat dissipation shell is seted up with the wind gap that the fan wheel shape matches, the top surface and the bottom surface of heat dissipation shell all are equipped with a plurality of slotted holes; the utility model discloses have and distribute away the heat of blend switch, reduce the effect of blend switch temperature.

Description

Combination switch

Technical Field

The utility model belongs to the technical field of circuit switch's technique and specifically relates to a blend switch is related to.

Background

The compound switch is an intelligent switch device for switching and operating a capacitor bank in the low-voltage reactive power compensation device; the long-term use of the compound switch can cause large current fluctuation and large heat productivity, and easily damage a circuit board and cause fire.

Patent document No. CN207517577U discloses a combination switch, in which a heat radiation hole and a heat radiation fin are provided at the bottom of a base plate of the combination switch, so as to transfer heat generated by the combination switch and reduce the temperature of the combination switch.

The above prior art solutions have the following drawbacks: the radiating effect of the radiating holes and the radiating fins is limited, and the risk that the heat of the compound switch cannot be timely transmitted out to damage the circuit board still exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blend switch, it can improve blend switch's radiating effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a combination switch, includes bottom plate, circuit board and shell body, the shell body set up in the bottom plate upper surface, the circuit board is located inside the shell body, the bottom plate deviates from the terminal surface of shell body is equipped with the heat dissipation shell, the heat dissipation shell orientation the heat dissipation fan is installed to the terminal surface of bottom plate, the heat dissipation fan includes base and impeller, the impeller install in the base, base detachable install in the heat dissipation shell, the heat dissipation shell seted up with impeller shape assorted wind gap, the top surface and the bottom surface of heat dissipation shell all are equipped with a plurality of slotted holes.

Through above-mentioned technical scheme, the heat dissipation fan blows the outside air to the bottom plate through the wind gap, and the air is taken away the heat of bottom plate when leaving the heat dissipation shell through the slotted hole, strengthens the air current exchange in the heat dissipation shell, improves the radiating effect, reduces combination switch's temperature.

Furthermore, the end face of the bottom plate facing the heat dissipation fan is fixed with a heat dissipation fin.

Through above-mentioned technical scheme, the fin gives off the heat of bottom plate to in the air.

Further, the contact surface of the radiating fin and the bottom plate is coated with heat conducting resin.

Through above-mentioned technical scheme, the heat of blend switch conducts on the fin more effectively.

Further, the bottom plate both sides are fixed with the fixed plate, the heat dissipation shell cover is located in the fixed plate, the fixed plate is seted up the slide rail of fixed orifices and level setting, the one end of slide rail with the fixed plate is external to communicate with each other, the other end with the fixed orifices communicates with each other, the heat dissipation shell is provided with the lug, the lug with slide rail sliding connection, the lug passes through the fixed orifices with the fixed plate joint is fixed.

According to the technical scheme, when the heat dissipation shell is arranged on the fixing plate, the convex block slides along the slide rail until the convex block is clamped into the fixing hole, and the heat dissipation shell is detachably fixed on the fixing plate; when the heat dissipation shell needs to be disassembled, the convex block is pressed to be separated from the fixing hole, so that the heat dissipation shell can be separated from the fixing plate, and the heat dissipation shell can be conveniently and quickly assembled and disassembled.

Furthermore, an assembly groove is formed in the fixing plate in the horizontal direction, and the heat dissipation shell is provided with a convex strip matched with the assembly groove.

Through above-mentioned technical scheme, the sand grip slides in the assembly groove, plays the effect of location to the installation of heat dissipation shell and fixed plate.

Furthermore, threaded holes deviating from the opening in the direction of the bottom plate are formed in four corners of the base, through holes corresponding to the threaded holes are formed in the radiating shell, bolts penetrate through the through holes, and the bolts are in threaded connection with the threaded holes.

Through above-mentioned technical scheme, to dispel the heat fan detachable install in the heat dissipation shell, conveniently assemble and change the heat dissipation fan.

Furthermore, the bolt sleeve is provided with a spring, one end of the spring abuts against the heat dissipation shell, and the other end of the spring abuts against the base.

Through above-mentioned technical scheme, the heat dissipation fan during operation can produce vibrations, through set up the spring between bolt head and base, avoids vibrations to cause the bolt not hard up, influences the fixed of heat dissipation fan.

Further, the edge of the air opening is a bevel edge inclined towards the fan wheel.

Through above-mentioned technical scheme, the hypotenuse increases the air inlet area in wind gap, improves the radiating efficiency.

Further, the tuyere is provided with a protection net.

Through above-mentioned technical scheme, prevent that the object outside the heat dissipation shell from touching the fan wheel, causing the damage of this object or the fan wheel is destroyed.

The utility model has the advantages that:

1. the heat dissipation fan blows external air into the heat dissipation shell, so that airflow exchange is promoted, heat of the bottom plate is taken away, and the heat dissipation effect is improved;

2. the heat dissipation shell and the fixing plate are fixed in a clamping manner, so that the heat dissipation shell is convenient to mount and dismount;

3. the wind gap is equipped with the protection net, can protect the heat dissipation fan, improves the security.

Drawings

Fig. 1 is an exploded view of the present invention.

In the figure: 1. a base plate; 11. a fixing plate; 12. assembling a groove; 13. a heat sink; 14. a fixing hole; 15. a slide rail; 2. a heat dissipation housing; 21. a slot; 22. a heat dissipation fan; 23. a base; 24. a fan wheel; 25. a bump; 26. a threaded hole; 27. a through hole; 28. a bolt; 29. a spring; 210. a tuyere; 211. a bevel edge; 212. a protection net; 213. a convex strip; 3. an outer housing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a combination switch, including a bottom plate 1, a circuit board and an outer shell 3, the outer shell 3 is arranged on the surface of the bottom plate 1, the circuit board is positioned inside the outer shell 3, two sides of the end surface of the bottom plate 1 departing from the outer shell 3 are fixed with a fixing plate 11, the fixing plate 11 is internally sleeved with a heat dissipation shell 2, the fixing plate 11 is provided with a fixing hole 14 and a slide rail 15, the slide rail 15 is horizontally arranged, one end of the slide rail 15 is communicated with the outside of the fixing plate 11, and the other end; the heat dissipation shell 2 is provided with a convex block 25, the convex block 25 is in sliding connection with the sliding rail 15, and the convex block 25 is fixedly clamped with the fixing plate 11 through the fixing hole 14, so that the heat dissipation shell 2 is detachably mounted on the fixing plate 11, and the heat dissipation shell 2 is convenient to clean and replace; the fixing plate 11 is provided with an assembling groove 12 along the horizontal direction, the heat dissipation shell 2 is provided with a convex strip 213 matched with the assembling groove 12, and the convex strip 213 is slidably connected with the assembling groove 12 and plays a role in positioning for the installation of the heat dissipation shell 2 and the fixing plate 11.

As shown in fig. 1, a heat sink 13 is fixed on the end surface of the base plate 1 away from the outer shell 3, and a contact surface between the heat sink 13 and the base plate 1 is coated with heat-conducting resin, so that heat generated by the compound switch is more effectively conducted to the heat sink 13 and then dissipated to the air through the heat sink 13; the top surface and the bottom surface of the heat dissipation shell 2 are both provided with a plurality of slotted holes 21, and the slotted holes 21 are used for air to flow into and out of the heat dissipation shell 2, so that the heat dissipation efficiency is improved; the heat dissipation fan 22 is installed in the heat dissipation shell 2, the heat dissipation fan 22 is located on the end face, facing the bottom plate 1, of the heat dissipation shell 2, the heat dissipation fan 22 comprises a base 23 and a fan wheel 24, the fan wheel 24 is installed in the base 23, threaded holes 26 with openings facing away from the direction of the bottom plate 1 are formed in four corners of the base 23, a through hole 27 is formed in the heat dissipation shell 2, the through hole 27 is matched with the threaded holes 26, a bolt 28 penetrates through the through hole 27, the bolt 28 is in threaded connection with the threaded holes 26, and the heat dissipation fan 22 is; the bolt 28 is sleeved with a spring 29, one end of the spring 29 is abutted against the heat dissipation shell 2, the other end of the spring 29 is abutted against the base 23, and the spring 29 can slow down vibration generated during the work of the heat dissipation fan 22 and avoid the bolt 28 from loosening; the heat dissipation fan 22 blows outside air into the heat dissipation shell 2 to increase air flow in the heat dissipation shell 2, and the air leaves through the slot 21 and brings heat out of the heat dissipation shell 2, so that the heat dissipation effect is improved; the heat dissipation shell 2 is provided with an air opening 210 matched with the shape of the fan wheel 24, and the heat dissipation fan 22 blows the outside air into the heat dissipation shell 2 through the air opening 210; the edge of the air inlet 210 is a bevel edge 211 which inclines towards the fan wheel 24, and the bevel edge 211 can increase the air inlet area of the air inlet 210; the air opening 210 is provided with a protection net 212 to prevent an object outside the heat dissipation case 2 from touching the fan wheel 24 to damage the object or damage the fan wheel 24.

The use method and the working principle are as follows:

the bolt 28 passes through the through hole 27 and is in threaded connection with the threaded hole 26, so that the heat dissipation fan 22 is fixed on the heat dissipation shell 2; the projection 25 is clamped into the fixing hole 14, and the heat dissipation shell 2 is fixed on the fixing plate 11; the heat generated by the composite switch during operation is transferred to the outside of the bottom plate 1 through the radiating fins 13, the fan wheel 24 of the radiating fan 22 rotates to blow the outside air into the radiating shell 2, and the air flows in the radiating shell 2 and passes through the slotted hole 21 to bring the heat out of the composite switch.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a combination switch, includes bottom plate (1), circuit board and shell body (3), shell body (3) set up in bottom plate (1) upper surface, the circuit board is located inside shell body (3), its characterized in that: the bottom plate (1) deviates from the terminal surface of shell body (3) is equipped with heat dissipation shell (2), heat dissipation shell (2) orientation heat dissipation fan (22) are installed to the terminal surface of bottom plate (1), heat dissipation fan (22) include base (23) and impeller (24), impeller (24) install in base (23), base (23) detachable install in heat dissipation shell (2), heat dissipation shell (2) seted up with impeller (24) shape assorted wind gap (210), the top surface and the bottom surface of heat dissipation shell (2) all are equipped with a plurality of slotted holes (21).

2. The compound switch of claim 1, wherein: and a radiating fin (13) is fixed on the end face of the bottom plate (1) facing the radiating fan (22).

3. The compound switch of claim 2, wherein: the contact surface of the radiating fin (13) and the bottom plate (1) is coated with heat conducting resin.

4. The compound switch of claim 1, wherein: bottom plate (1) both sides are fixed with fixed plate (11), heat dissipation shell (2) cover is located in fixed plate (11), slide rail (15) that fixed orifices (14) and level set up are seted up in fixed plate (11), the one end of slide rail (15) with fixed plate (11) external world communicates with each other, the other end with fixed orifices (14) communicate with each other, heat dissipation shell (2) are provided with lug (25), lug (25) with slide rail (15) sliding connection, lug (25) pass through fixed orifices (14) with fixed plate (11) joint is fixed.

5. The compound switch of claim 4, wherein: an assembly groove (12) is formed in the fixing plate (11) in the horizontal direction, and a protruding strip (213) matched with the assembly groove (12) is arranged on the heat dissipation shell (2).

6. The compound switch of claim 1, wherein: threaded holes (26) deviating from the direction opening of the bottom plate (1) are formed in four corners of the base (23), through holes (27) corresponding to the threaded holes (26) are formed in the heat dissipation shell (2), bolts (28) penetrate through the through holes (27), and the bolts (28) are in threaded connection with the threaded holes (26).

7. The compound switch of claim 6, wherein: the bolt (28) is sleeved with a spring (29), one end of the spring (29) is abutted to the heat dissipation shell (2), and the other end of the spring (29) is abutted to the base (23).

8. The compound switch of claim 1, wherein: the edge of the air opening (210) is a bevel edge (211) inclined towards the fan wheel (24).

9. The compound switch of claim 1, wherein: and the tuyere (210) is provided with a protection net (212).