CN209949718U

CN209949718U - UPS control panel field effect tube heat abstractor

Info

Publication number: CN209949718U
Application number: CN201822027201.7U
Authority: CN
Inventors: 苏世通
Original assignee: Foshan Russelda Technology Co Ltd
Current assignee: Foshan Russelda Technology Co Ltd
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2020-01-14
Anticipated expiration: 2028-12-04

Abstract

The utility model relates to a UPS control panel field effect tube heat dissipation device, which comprises a heat dissipation fin, wherein a plurality of chutes for mounting field effect tubes are arranged on the side walls of the front side and the rear side of the heat dissipation fin at equal intervals, and a plurality of heat dissipation grooves which are parallel to each other are arranged in the heat dissipation fin; connecting holes are further formed in the four corners of the radiating fin, connecting structures are arranged in the connecting holes and comprise connecting columns matched with the connecting holes and elastic steel sheets symmetrically arranged at the upper end openings of the connecting holes, and annular clamping grooves are formed in the middle upper portions of the connecting columns. The utility model discloses simple structure, the installation and the change of the fin of being convenient for.

Description

UPS control panel field effect tube heat abstractor

Technical Field

The utility model relates to a heat abstractor technical field, concretely relates to UPS control panel field effect transistor heat abstractor.

Background

Ups (uninterruptible Power supply), i.e., an uninterruptible Power supply, is a system device that connects a storage battery (mostly a lead-acid maintenance-free storage battery) with a host, and converts direct current into commercial Power through module circuits such as a host inverter. The power supply device is mainly used for providing stable and uninterrupted power supply for a single computer, a computer network system or other power electronic equipment such as an electromagnetic valve, a pressure transmitter and the like. When the commercial power input is normal, the UPS supplies the commercial power to the load for use after stabilizing the voltage, and the UPS is an alternating current type voltage stabilizer and also charges the battery in the machine; when the commercial power is interrupted (power failure in accident), the UPS immediately supplies the direct current electric energy of the battery to the load by a method of switching and converting the inverter to continuously supply 220V alternating current to the load, so that the load keeps normal work and the software and hardware of the load are protected from being damaged.

In a UPS host inverter, one or more fets of different power are typically used on the control board. The fet generates a large amount of heat during operation, and the accumulation of this heat can cause the performance of the fet and other electronic components in the UPS to deteriorate, or even burn out the fet. Therefore, in order to ensure the normal operation of the UPS, the heat therein must be dissipated. The aluminum radiator has the advantages of light weight, good radiating effect and the like, can well radiate heat of heating devices in electronic equipment, and is widely applied to inverter power supplies. The inverter heat radiator is usually in a block U shape and a single-side sawtooth shape, and the surface of the inverter heat radiator is smooth. When the screw is used for fixing the field effect tube, the field effect tube can rotate along with the screw, so that the field effect tube is easily not matched in the middle, time and labor are wasted in the installation process, and the production efficiency is low.

In order to solve the above problems, the chinese utility model patent with the publication number of CN207854363U discloses a field effect tube embedded aluminum profile heat sink. The radiator comprises two radiating fins, wherein each radiating fin comprises a first column, a second column, a connecting groove, a first groove, a second groove and radiating teeth which are mutually symmetrical, and the sizes of the first groove and the second groove are consistent with the size of a field effect tube. By embedding the field effect transistor into the groove, the field effect transistor cannot rotate along with the screw when being fixed. Therefore, the installation time of the field effect transistor can be shortened, and the working efficiency is further improved.

The radiator can shorten the installation time of the field effect transistor, but the structure is relatively complex, and the workshop processing is inconvenient to a certain extent. For some UPS inverter control boards with small power and limited space, the structural shape of the UPS inverter control board easily occupies more space, which is inconvenient for installing the whole radiator.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to overcome the deficiencies of the prior art and provide a UPS control panel field effect transistor heat abstractor of simple structure and installation of being convenient for.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the UPS control panel field effect tube heat dissipation device comprises a heat dissipation fin, wherein a plurality of sliding grooves used for mounting field effect tubes are arranged on the side walls of the front side and the rear side of the heat dissipation fin at equal intervals, and a plurality of heat dissipation grooves which are parallel to each other are arranged in the heat dissipation fin; connecting holes are further formed in the four corners of the radiating fin, connecting structures are arranged in the connecting holes and comprise connecting columns matched with the connecting holes and elastic steel sheets symmetrically arranged at the upper end openings of the connecting holes, and annular clamping grooves are formed in the middle upper portions of the connecting columns.

Preferably, the sliding groove is provided with a mounting screw hole.

Preferably, the clamping grooves are arranged on the middle upper part of the connecting column from top to bottom at equal intervals.

Preferably, a heat-conducting silicone grease is arranged between the side wall of the chute and the field effect tube.

Due to the adoption of the technical scheme, compare with prior art, the utility model discloses following beneficial effect has:

the side walls of the front side and the rear side of the radiating fin are provided with sliding grooves, so that a user can easily and conveniently insert the field effect transistor into the sliding grooves to install and fix the field effect transistor. When the radiating fins are installed, the upper ends of the connecting columns are inserted into the connecting holes, the elastic steel sheets can be clamped into the clamping grooves in the middle upper portions of the connecting columns, and the connecting columns are tightly clamped in the connecting holes. At this moment, the user can install fixedly through inserting the bottom of spliced pole in the control panel to whole fin.

In addition, after the heat dissipation sheet is installed and fixed, if the heat dissipation sheet needs to be replaced, a user does not need to detach the heat dissipation sheet together with the connecting column. The user only needs to lift the radiating fin upwards to remove the radiating fin independently. Is easy and convenient.

Therefore, the heat dissipation device is simple in structure, and the heat dissipation fins are easy and convenient to install and replace.

Drawings

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

fig. 2 is a schematic view of the structural relationship between the connection structure and the connection hole of the present invention.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiment of the present invention, all other embodiments that a person skilled in the art can obtain without creative work all belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the UPS control panel fet heat dissipation apparatus includes a heat sink 1, a plurality of chutes 2 for mounting fets are disposed on front and rear sidewalls of the heat sink 1 at equal intervals, a plurality of parallel heat dissipation grooves 3 are disposed in the chutes, and the heat dissipation grooves 3 penetrate through upper and lower sidewalls of the heat sink 1. The four corners of the radiating fin are also provided with connecting holes 4, connecting structures 5 are arranged in the connecting holes 4, each connecting structure 5 comprises a connecting column 6 matched with the corresponding connecting hole 4 and elastic steel sheets 7 symmetrically arranged at the upper end opening of the corresponding connecting hole 4, and the middle upper portion of each connecting column 6 is provided with an annular clamping groove 8.

The elastic steel sheets 7 have good elasticity and are symmetrically arranged at the upper end openings of the connecting holes 4 at the four corners of the radiating fin 1. One end of the elastic steel sheet 7 is arranged at the opening edge of the connecting hole 4, and the other end thereof extends into the connecting hole 4. When the annular clamping groove 8 at the middle upper part of the connecting column 6 moves up and down to be opposite to the elastic steel sheet, the elastic steel sheet 7 is clamped into the annular clamping groove 8, so that the connecting column 6 is tightly locked in the connecting hole 4.

The diameter of the connecting hole 4 is larger than that of the connecting column 6, and generally, the diameter of the connecting hole 4 may be set to be 1.5 to 2 times the diameter of the connecting column 6. The elastic steel sheet 7 extends into the connecting hole 4, and the length of the elastic steel sheet is set according to the hole diameters of the connecting hole 4 and the connecting column 6. The length of the connecting hole 4 is greater than the radius of the connecting column 6 subtracted from the radius of the connecting hole 4 and less than the radius of the inner ring of the annular groove 8 subtracted from the connecting hole 4.

The ring-shaped clamping grooves 8 are formed in the middle upper portion of the connecting column 6 from top to bottom at equal intervals, so that the relative position of the connecting column 6 in the connecting hole 4 can be better adjusted, and the installation height of the radiating fin 1 can be set according to actual requirements.

Further, in order to make the fet more firmly mounted in the chute 2, a mounting screw hole 9 may be provided above the chute 2. The field effect transistor is mounted in the chute 2 by screws.

The packaging appearance TO of the field effect transistor is in a direct-insert type packaging design, and the type of the field effect transistor is generally selected TO be IRF 3205. Wherein, heat-conducting silicone grease is coated between the side wall of the chute 2 and the field effect tube. The existence of heat conduction silicone grease can fill the gap between the field effect transistor and the sliding groove 2, and the heat conduction and heat dissipation effects are improved by increasing the contact area of the field effect transistor and the sliding groove.

The above all be the utility model discloses a preferred embodiment, the utility model discloses a protection scope does not confine above-mentioned embodiment to, the all belong to the utility model discloses other technical scheme under the thinking all belong to the utility model discloses a protection scope.

Claims

UPS control panel field effect transistor heat abstractor, including the fin, its characterized in that: a plurality of sliding grooves for mounting field effect transistors are arranged on the side walls of the front side and the rear side of the radiating fin at equal intervals, and a plurality of radiating grooves which are parallel to each other are arranged in the radiating fin; the radiating fin is characterized in that connecting holes are further formed in the four corners of the radiating fin, connecting structures are arranged in the connecting holes and comprise connecting columns matched with the connecting holes and elastic steel sheets symmetrically arranged at the upper end openings of the connecting holes, and annular clamping grooves are formed in the middle upper portions of the connecting columns.
2. The UPS control board fet heat sink of claim 1, wherein: and the sliding groove is provided with an installation screw hole.
3. The UPS control board fet heat sink of claim 2, wherein: the clamping grooves are arranged on the middle upper portion of the connecting column from top to bottom at equal intervals.
4. The UPS control board fet heat sink of any of claims 1 to 3, wherein: and heat-conducting silicone grease is arranged between the side wall of the sliding groove and the field effect tube.