CN113692192A - Natural heat dissipation distributed active unbalance compensation device case - Google Patents

Natural heat dissipation distributed active unbalance compensation device case Download PDF

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Publication number
CN113692192A
CN113692192A CN202110963323.0A CN202110963323A CN113692192A CN 113692192 A CN113692192 A CN 113692192A CN 202110963323 A CN202110963323 A CN 202110963323A CN 113692192 A CN113692192 A CN 113692192A
Authority
CN
China
Prior art keywords
circuit board
box
case
main circuit
inductance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110963323.0A
Other languages
Chinese (zh)
Inventor
范建华
徐鹏飞
宗国强
张晓宇
郑晓明
张帅
郭恒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Topscomm Communication Co Ltd
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Qingdao Topscomm Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Topscomm Communication Co Ltd filed Critical Qingdao Topscomm Communication Co Ltd
Priority to CN202110963323.0A priority Critical patent/CN113692192A/en
Publication of CN113692192A publication Critical patent/CN113692192A/en
Withdrawn legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136Forced ventilation, e.g. by fans
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/06Hermetically-sealed casings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20409Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a natural heat dissipation distributed active unbalance compensation device case which comprises a case body, an upper cover, a heat radiator, an inductance encapsulation box, an electrolytic capacitor encapsulation box, a flow equalizing fan, a main circuit board, a Bluetooth circuit board, a mounting bracket and a sun shield. Sealing rubber strips are arranged at joints of the equipment case and each device, and an aviation plug is adopted for cable outgoing, so that the protection level is high, and equipment damage caused by external pollution is avoided; the equipment is not provided with an external fan, the noise is low, and the dust filter screen does not need to be replaced regularly; the device easy to heat and the equipment which is not heat-resistant are separately encapsulated and mutually isolated, the high-heat-generating devices IGBT are uniformly distributed on the radiator substrate, the temperature-equalizing fan is arranged inside the radiator substrate, the sun shield is arranged outside the radiator substrate, and the heat radiation performance of the whole radiator is good; the volume is compact, and the support and the equipment are simple to mount. On the whole, this structural design scheme is particularly suitable for outdoor installation for distributed active unbalance governance scheme can be promoted, reduces the line loss, improves electric wire netting reliability and user power consumption quality.

Description

Natural heat dissipation distributed active unbalance compensation device case
Technical Field
The invention relates to the field of electric energy quality, in particular to a natural heat dissipation distributed active unbalance compensation device case.
Background
The three-phase imbalance of the power grid caused by the asymmetric load is one of the main indexes of the power quality, which can cause the increase of the loss of a line and a distribution transformer, the reduction of the output of the transformer and the local heating, and can also cause the safe operation of the voltage at the user side. The unbalance management is generally divided into two types, namely a phase change switch and power electronic equipment, wherein the phase change switch can ensure that the loads of all phases are relatively balanced, but the power supply reliability and the compensation rate are low; the power electronic equipment, namely the active unbalance compensation device, generally performs centralized compensation on the transformer side, so that three-phase balance at the transformer can be ensured, but unbalance still exists at the tail end of a line.
The distributed active unbalance compensation device combines the advantages of a phase change switch, and power electronic equipment is installed on a node with serious unbalance, so that the power consumption environment at the tail end of a line can be effectively improved, and the line loss is reduced. However, the distributed equipment has a plurality of installation points and is installed on the electric pole, so that the installation and maintenance are troublesome, and the installation is simple, the reliability is high and the protection level is high; in addition, power and heat productivity are mainly concentrated on the IGBT and the inductor, and high requirements are placed on device layout and heat dissipation. Because the heating value is large, the distributed equipment mostly adopts a forced air cooling mode, the noise of a fan is large, and the reliability is low; the whole machine is not sealed, and the protection grade is low; the natural heat dissipation scheme is less, and the volume and the weight are increased, so that the installation is difficult.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the natural heat dissipation distributed active imbalance compensation device case which is high in protection level, good in heat dissipation effect, small in size, light in weight and simple in installation, so that a distributed active imbalance management scheme can be popularized, the line loss is reduced, and the reliability of a power grid and the power utilization quality of a user are improved.
In order to achieve the purpose, the invention provides a natural heat dissipation distributed active imbalance compensation device case, which comprises a case, an upper cover, a radiator, an inductance encapsulation box, an electrolytic capacitor encapsulation box, a temperature equalizing fan, a main circuit board, a Bluetooth circuit board, a mounting bracket and a sun shield, wherein the case is a foundation for the integral layout of an equipment structure and an electrical element, the bottom of the case is provided with a plurality of wire inlet holes, and a current transformer glan head and a main circuit line aerial plug are mounted; a plurality of pressure riveting pieces are arranged inside the main circuit board and are used for fixing the main circuit board and the temperature equalizing fan; the top is provided with a buckle for fixing the upper cover; the back is provided with a plurality of holes for fixing the radiating fin, the inductance encapsulating box and the electrolytic capacitor encapsulating box, and sealing rubber strips are arranged between the radiating fin, the inductance encapsulating box and the electrolytic capacitor encapsulating box and the case.
Further, the upper cover includes the upper cover body, pilot lamp panel and foaming adhesive tape, wherein preceding trompil installation pilot lamp panel of upper cover body and bluetooth circuit board have the foaming adhesive tape between upper cover body and the quick-witted case.
Furthermore, the radiator is an extruded section radiator, a plurality of fixing holes are processed on the base body, and mounting grooves are processed on the fins.
Furthermore, the main circuit board comprises a power module, a filtering module and an electromagnetic compatibility module, wherein heating devices IGBT in the power module are uniformly distributed on the surface of the radiating fin substrate, the heating devices IGBT and the radiating fin substrate are insulated by ceramic plates, and gaps are filled with heat-conducting silicone grease and are positioned at the upper right part in the box; the power module has more heat sensitive devices and is positioned at the right lower part of the box body; the filter module is of LCL topology, is positioned at the left upper part of the main circuit board and encapsulates the high-heat inductor outside the chassis; the electromagnetic compatibility module is positioned at the lower left and close to the main loop line aviation plug.
Furthermore, the inductance encapsulation box and the electrolytic capacitor encapsulation box are both die-cast aluminum shells, pouring sealant is filled inside the inductance encapsulation box and the electrolytic capacitor encapsulation box, the inverter inductance, the network side inductance and the electrolytic capacitor are fixed outside the case, the influence on the inside of the case is reduced, the external heat dissipation is enhanced, and the device outgoing line is connected to the corresponding position of the main circuit board through the opening in the back of the case.
Furthermore, the mounting bracket comprises a fixing bracket and a stainless steel hose clamp, a fixing hole and a vent hole are formed in the back of the fixing bracket, the stainless steel hose clamp can be fixed on the electric pole, the top of the fixing bracket is provided with a sun shield, and a protruding bend is formed in the front of the fixing bracket and can be matched with a groove of a radiator fin to fix the chassis.
The invention has the beneficial effects that:
1. the protective performance is good. Sealing rubber strips are arranged at joints of the equipment case and each device, an aviation plug is adopted for cable outgoing, the protection level is high, and short circuit caused by external pollution is avoided.
2. Maintenance is not required. The steel wire mesh is not required to be replaced regularly due to the fact that no external fan is arranged, only one temperature equalizing fan is arranged inside the steel wire mesh, the environment is stable, damage is not prone to occurring, and reliability is high.
3. The noise is low. The sound volume is below 40dB, and the device can be installed beside a residential building.
4. And the heat dissipation performance is good. The device that will easily generate heat and the equipment that does not bear heat separate the embedment mutually, generate heat the device equipartition on the radiator base plate, inside fan samming, outside adds the sunshading board, reinforcing equipment heat dissipation and heat resistance.
5. The installation is convenient. The equipment has compact volume, light weight and simple installation steps.
Drawings
Fig. 1 is a schematic diagram of the overall explosion of the structural layout of the case of the natural heat dissipation distributed active imbalance compensation device of the present invention;
FIG. 2 is a schematic layout diagram of a main circuit board of a case of the natural heat dissipation distributed active imbalance compensation apparatus of the present invention;
fig. 3 is a schematic view of the installation effect of the pole holding of the case of the natural heat dissipation distributed active imbalance compensation device of the present invention;
reference numerals: 1. the technical scheme includes that the intelligent electronic ballast comprises a case, 2 parts of an upper cover, 3 parts of a radiator, 4 parts of an inductance encapsulation box, 5 parts of an electrolytic capacitor encapsulation box, 6 parts of a temperature equalizing fan, 7 parts of a main circuit board, 8 parts of a Bluetooth circuit board, 9 parts of a mounting bracket, 10 parts of a sun shield, 11 parts of a current transformer gland head, 12 parts of a main circuit line aviation plug, 13 parts of a buckle, 14 parts of a sealing rubber strip, 21 parts of an upper cover body, 22 parts of an indicator lamp panel, 23 parts of a foaming rubber strip, 41 parts of an inverter inductor, 42 parts of a network side inductor, 51 parts of an electrolytic capacitor, 71 parts of a power module, 72 parts of a power module, 73 parts of a filter module, 74 parts of an electromagnetic compatibility module, 91 parts of a fixing bracket and 92 parts of a stainless steel hose clamp.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, the present embodiment provides a natural heat dissipation distributed active imbalance compensation device case, which includes a case 1, an upper cover 2, a heat sink 3, an inductance potting box 4, an electrolytic capacitor potting box 5, a uniform temperature fan 6, a main circuit board 7, a bluetooth circuit board 8, a mounting bracket 9 and a sun visor 10, wherein the case 1 is a base of an overall layout of an equipment structure and an electrical component, and is provided with a plurality of wire inlet holes at the bottom thereof, and a current transformer flange 11 and a main circuit line aerial plug 12 which are both high-protection devices are mounted on the case; a plurality of pressure riveting pieces are arranged inside the cavity, the main circuit board 7 and the temperature equalizing fan 6 are fixed, and the temperature equalizing fan can promote air flow in the cavity and avoid local high temperature; the top is provided with a buckle 13 which fixes the upper cover 2 together with the threaded hole at the bottom of the box body, the mounting mode can simplify the assembly process and hide the bolt, and the box is more beautiful; the back is provided with a plurality of holes which are matched with bolts to fix the radiating fin 2, the inductance encapsulating box 3 and the electrolytic capacitor encapsulating box 5, and sealing rubber strips 14 are arranged between the three and the case 1.
The upper cover 2 comprises an upper cover body 21, an indicator light panel 22 and a foaming adhesive tape 23, wherein the indicator light panel 22 and the Bluetooth circuit board 8 are installed on the front surface of the upper cover body 21 through a hole, the indicator light panel 22 and the upper cover body 21 are sealed through gluing, and the foaming adhesive tape 23 is arranged between the upper cover body 21 and the case 1.
The radiator 3 is an extruded section radiator, the radiating surface is polished smoothly, a plurality of fixing holes are machined in the base body, and mounting grooves are machined in the fins.
The main circuit board 7 comprises a power module 71, a power module 72, a filtering module 73 and an electromagnetic compatibility module 74, the layout of the devices is shown in fig. 2, wherein heating devices in the power module 71 are uniformly distributed on the surface of the substrate of the radiating fin 3, the heating devices and the radiating fin are insulated by ceramic plates, and gaps are filled with heat-conducting silicone grease and are positioned at the upper right in the box; the power module 72 has more heat sensitive devices and is positioned at the right lower part of the box body; the filtering module 73 is an LCL topology, is positioned at the upper left of the main circuit board, and encapsulates a high-heat inductor outside the case 1; the electromagnetic compatibility module 74 is located at the lower left, near the primary return line pod 12; according to the layout, the heating device is placed above and the heat-labile device is placed below according to the wiring direction of the main loop, so that heat can be effectively dissipated, and the service life of the electronic device is prolonged.
The inductance encapsulating box 4 and the electrolytic capacitor encapsulating box 5 are both die-cast aluminum shells, encapsulating glue is filled inside the aluminum shells, the inverter inductor 41, the network side inductor 42 and the electrolytic capacitor 51 are fixed outside the case 1, the influence on the inside of the case is reduced, the external heat dissipation is enhanced, and the device outgoing line is connected to the corresponding position of the main circuit board 7 through a hole in the back of the case 1.
The mounting bracket 9 comprises a fixing bracket 91 and a stainless steel hose clamp 92, the effect of the mounted equipment holding pole is as shown in fig. 3, a fixing hole and a vent hole are processed on the back of the fixing bracket 91, the stainless steel hose clamp 92 can be fixed on an electric pole, the top of the fixing bracket is provided with a sun shield 10, the front of the fixing bracket is provided with a protruding bend, and the fixing bracket can be matched with a groove of a fin of the radiator 3 to fix the case 1; the sun visor 10 can effectively reduce the heat caused by solar radiation.
The above-mentioned embodiments are illustrative of the specific embodiments of the present invention, and are not restrictive, and those skilled in the relevant art can make various changes and modifications to obtain corresponding equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should be included in the scope of the present invention.

Claims (6)

1. A natural heat dissipation distributed active unbalance compensation device case comprises a case, an upper cover, a radiator, an inductance encapsulation box, an electrolytic capacitor encapsulation box, a temperature equalizing fan, a main circuit board, a Bluetooth circuit board, a mounting bracket and a sun shield, and is characterized in that the case is a foundation for integral layout of an equipment structure and electrical components, the bottom of the case is provided with a plurality of wire inlet holes, and a current transformer Glan head and a main circuit route aerial plug are mounted; a plurality of pressure riveting pieces are arranged inside the main circuit board and are used for fixing the main circuit board and the temperature equalizing fan; the top is provided with a buckle used for fixing the upper cover; the back is provided with a plurality of holes for fixing the radiating fin, the inductance encapsulating box and the electrolytic capacitor encapsulating box, and sealing rubber strips are arranged between the radiating fin, the inductance encapsulating box and the electrolytic capacitor encapsulating box and the case.
2. The chassis of claim 1, wherein the top cover comprises a top cover body, an indicator panel and a foam rubber strip, wherein the indicator panel and the bluetooth circuit board are installed in a front opening of the top cover body, and the foam rubber strip is arranged between the top cover body and the chassis.
3. The cabinet according to claim 1, wherein the heat sink is an extruded profile heat sink, the base has a plurality of fastening holes, and the fins have mounting grooves.
4. The natural heat dissipation distributed active imbalance compensation device cabinet according to claim 1, wherein the main circuit board comprises a power module, a filtering module and an electromagnetic compatibility module, wherein the heating devices IGBT in the power module are uniformly distributed on the surface of the cooling fin substrate, the heating devices IGBT and the cooling fin substrate are insulated by ceramic plates, and gaps are filled by heat conduction silicone grease and are positioned at the upper right in the cabinet; the power supply module is positioned at the right lower part of the box body; the filter module is of LCL topology, is positioned at the left upper part of the main circuit board and encapsulates the high-heat inductor outside the chassis; the electromagnetic compatibility module is positioned at the lower left and close to the main loop line aviation plug.
5. The cabinet according to claim 1, wherein the inductance potting box and the electrolytic capacitor potting box are both die-cast aluminum shells, potting adhesive is filled inside the inductance potting box and the electrolytic capacitor potting box to fix the inverter inductance, the grid side inductance and the electrolytic capacitor outside the cabinet, so as to reduce the influence on the inside of the cabinet and enhance the heat dissipation to the outside, and device outlet wires are connected to corresponding positions of the main circuit board through openings on the back of the cabinet.
6. The chassis of claim 1, wherein the mounting bracket comprises a fixing bracket and a stainless steel hose clamp, the fixing bracket has fixing holes and ventilation holes formed on the back thereof, the fixing bracket can be fixed on the pole by the stainless steel hose clamp, the top thereof is provided with a sun visor, and the front thereof has a raised bend for fitting with the groove of the radiator fin to fix the chassis.
CN202110963323.0A 2021-08-20 2021-08-20 Natural heat dissipation distributed active unbalance compensation device case Withdrawn CN113692192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110963323.0A CN113692192A (en) 2021-08-20 2021-08-20 Natural heat dissipation distributed active unbalance compensation device case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110963323.0A CN113692192A (en) 2021-08-20 2021-08-20 Natural heat dissipation distributed active unbalance compensation device case

Publications (1)

Publication Number Publication Date
CN113692192A true CN113692192A (en) 2021-11-23

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Application Number Title Priority Date Filing Date
CN202110963323.0A Withdrawn CN113692192A (en) 2021-08-20 2021-08-20 Natural heat dissipation distributed active unbalance compensation device case

Country Status (1)

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CN (1) CN113692192A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210327044U (en) * 2019-08-24 2020-04-14 青岛鼎信通讯股份有限公司 Active unbalance compensation device structure
CN112104195A (en) * 2020-09-09 2020-12-18 青岛鼎信通讯股份有限公司 Device current conversion module structural design is administered to high protection low voltage
CN112152112A (en) * 2020-09-12 2020-12-29 青岛鼎信通讯股份有限公司 High-protection heat dissipation case of active unbalance compensation device
CN112911851A (en) * 2020-12-28 2021-06-04 青岛鼎信通讯股份有限公司 Outdoor case of distributed active unbalance compensation device with good ventilation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210327044U (en) * 2019-08-24 2020-04-14 青岛鼎信通讯股份有限公司 Active unbalance compensation device structure
CN112104195A (en) * 2020-09-09 2020-12-18 青岛鼎信通讯股份有限公司 Device current conversion module structural design is administered to high protection low voltage
CN112152112A (en) * 2020-09-12 2020-12-29 青岛鼎信通讯股份有限公司 High-protection heat dissipation case of active unbalance compensation device
CN112911851A (en) * 2020-12-28 2021-06-04 青岛鼎信通讯股份有限公司 Outdoor case of distributed active unbalance compensation device with good ventilation

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Application publication date: 20211123

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