CN209982326U - High-protection high-power general frequency converter - Google Patents
High-protection high-power general frequency converter Download PDFInfo
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- CN209982326U CN209982326U CN201921311095.3U CN201921311095U CN209982326U CN 209982326 U CN209982326 U CN 209982326U CN 201921311095 U CN201921311095 U CN 201921311095U CN 209982326 U CN209982326 U CN 209982326U
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- heat dissipation
- heat dispersion
- diversion trench
- silica gel
- aluminum plate
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
- 238000009423 ventilation Methods 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000741 silica gel Substances 0.000 claims abstract description 25
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 25
- 230000017525 heat dissipation Effects 0.000 claims description 44
- 239000000835 fiber Substances 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 abstract 13
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a high protective high power universal frequency converter, which has good heat dispersion, the key point of the technical proposal is that the frequency converter comprises a shell, a main board arranged in the shell and an electronic element arranged on the main board, the bottom surface of the main board is provided with a heat dispersion component, the heat dispersion component comprises a heat dispersion aluminum plate and a heat dispersion silica gel pad, the heat dispersion silica gel pad is a plurality of rectangular array structures and is laid between the heat dispersion aluminum plate and the main board, a first diversion trench is formed between adjacent heat dispersion silica gel pads, one side of the heat dispersion aluminum plate, which is back to the heat dispersion silica gel pad, is provided with a plurality of heat dispersion fins, a second diversion trench is formed between adjacent heat dispersion fins, the heat dispersion aluminum plate is also provided with a plurality of diversion holes for communicating the first diversion trench and the second diversion trench, the two ends of the shell are respectively provided with a first ventilation hole communicated with the first diversion trench and, the utility model is suitable for a converter technical field.
Description
Technical Field
The utility model belongs to the technical field of the converter, refer in particular to a high-power general converter of high protectiveness.
Background
With the self-turn-off and modularization of power electronic devices, the miniaturization, multifunctionalization and high performance of variable frequency power supply devices are promoted by the high frequency of the switching mode of the variable current circuit and the full digitalization of the control means. Especially, the full digitalization of the control means utilizes the huge information processing capability of a microcomputer, the software function of the microcomputer is continuously strengthened, the flexibility and the adaptability of the frequency conversion device are continuously enhanced, and a Sinusoidal Pulse Width Modulation (SPWM) frequency converter which adopts a high-power self-turn-off switching device (GTO, BJT, IGBT) as a main switching device becomes the mainstream of a high-power general frequency converter.
In addition, with miniaturization and high performance, the high-power frequency converter generally adopts a laminated busbar structure, and sequentially comprises a positive busbar, an output busbar and a negative busbar, wherein the positive busbar, the output busbar and the negative busbar are insulated by insulating plates, and the output adopts the laminated structure of the busbars, so that the space current density of the whole machine is reduced, namely the electromagnetic radiation intensity is reduced; electromagnetic radiation shielding of the upper and lower positive and negative electrode busbars greatly reduces electromagnetic radiation interference in the internal space of the whole machine; the capacitor formed between the busbars also has a certain absorption effect on peak current, so that the capacitor is suitable for a high-power frequency converter and a three-phase asynchronous motor.
However, the adoption of a high-power frequency converter also has the following problems: the integration has multiple electronic component and corresponding module on the mainboard of converter, can lead to overheated problem during the use, and the high temperature can lead to electronic component to damage, consequently needs to improve its heat radiation structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-power general converter of high protectiveness.
The purpose of the utility model is realized like this: the utility model provides a high general converter of high-power of high protectiveness, includes the casing, installs the mainboard in the casing and installs the electronic component on the mainboard, its characterized in that: the bottom surface of the main board is provided with a heat dissipation assembly, the heat dissipation assembly comprises a heat dissipation aluminum plate and a heat conduction silica gel pad, the heat conduction silica gel pad is of a rectangular array structure and is laid between the heat dissipation aluminum plate and the main board, a first diversion trench is formed between adjacent heat conduction silica gel pads, one side of the heat dissipation aluminum plate, which faces away from the heat conduction silica gel pad, is provided with a plurality of heat dissipation fins, a second diversion trench is formed between adjacent heat dissipation fins, a plurality of diversion holes used for communicating the first diversion trench and the second diversion trench are formed in the heat dissipation aluminum plate, the two ends of the shell are respectively provided with first ventilation holes communicated with the first diversion trench and the second diversion trench, the bottom of the shell is further provided with a plurality of second ventilation holes right opposite to the heat dissipation aluminum plate, the heat dissipation aluminum.
By adopting the technical scheme, the heat-conducting silica gel pad plays a role in quickly conducting heat, heat on the main board is conducted to the heat-radiating aluminum plate, and then the heat-radiating area is increased through the heat-radiating fins; the arrangement of the first flow guide grooves facilitates ventilation and heat dissipation between adjacent heat-conducting silica gel pads, the heat dissipation efficiency is improved, the second flow guide grooves facilitates ventilation and heat dissipation between adjacent heat dissipation fins, the flow guide holes facilitate air flow between the first flow guide grooves and the second flow guide grooves, heat dissipation is further accelerated, the first ventilation holes and the second ventilation holes can improve air flow inside and outside the frequency converter, and heat is conveniently discharged outside; in addition, the mainboard, the heat-conducting silica gel pad and the heat-radiating aluminum plate are sequentially overlapped, the heat-radiating aluminum plate is fixed on the bottom of the shell, and the mainboard and the heat-radiating aluminum plate are fixed through bolts, so that the heat-conducting silica gel pad can play a certain role in damping and buffering the mainboard, the stability of the mainboard is improved, and the influence of external vibration is avoided; through the structure, the heat dissipation and the stability inside the frequency converter are improved, namely the protection performance is improved, so that the applicability of the frequency converter is wider.
The utility model discloses further set up to: the two sides of the shell are also provided with a plurality of third ventilation holes, the inner sides of the third ventilation holes are provided with baffle plates, the baffle plates are provided with air guide holes, the air guide holes and the third ventilation holes are arranged in a staggered mode, and breathable sponges are arranged between the baffle plates and the third ventilation holes.
By adopting the technical scheme, the air flow inside and outside the frequency converter can be improved and the heat dissipation is accelerated by arranging the third vent holes; the baffle can be clamped on the shell, the breathable sponge is clamped between the side wall of the shell and the baffle, and external dust can be adsorbed and filtered by the baffle and the breathable sponge, so that the dust is prevented from directly entering the shell; meanwhile, due to the fact that the air guide holes and the third air guide holes are arranged in a staggered mode and are provided with the breathable sponge, a small amount of liquid such as water can be absorbed, and damage to the inside of the frequency converter caused by splashing or small amount of toppling over of external liquid is avoided.
The utility model discloses further set up to: the fan cover is arranged on the first air vent, and the fan is arranged in the first air vent.
Through adopting above-mentioned technical scheme, the fan is installed in first vent department, and the circuit of fan can link to each other with the power module of frequency conversion, accelerates the inside heat dissipation of converter by the fan.
The utility model discloses further set up to: and the wind cover and the second ventilation hole are both provided with fiber filter screens.
Through adopting above-mentioned technical scheme, the fiber filter screen can bond on fan housing and second venthole, and the fiber filter screen is woven by the fibre and forms, has good gas permeability, and plays certain barrier effect to dust and liquid, under the prerequisite of guaranteeing the gas permeability, plays the guard action to the converter inside.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the housing of FIG. 1 in the direction A-A;
the reference numbers in the figures are: 1. a housing; 2. a main board; 3. a heat dissipation aluminum plate; 4. a heat-conducting silica gel pad; 5. a first diversion trench; 6. a heat dissipating fin; 7. a second guiding gutter; 8. a flow guide hole; 9. a first vent hole; 10. a second vent hole; 13. a third vent hole; 14. a baffle plate; 15. a wind guide hole; 16. a breathable sponge; 17. a fan housing; 18. a fan; 19. a fiber screen.
Detailed Description
The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1-2:
the utility model provides a high general converter of high-power of high protectiveness, includes casing 1, installs mainboard 2 in casing 1 and installs the electronic component on mainboard 2, its characterized in that: 2 bottom surfaces of mainboard are equipped with radiator unit, radiator unit includes heat dissipation aluminum plate 3 and heat conduction silica gel pad 4, heat conduction silica gel pad 4 is that the polylith is the rectangle array structure and lays between heat dissipation aluminum plate 3 and mainboard 2, form first guiding gutter 5 between the adjacent heat conduction silica gel pad 4, one side of heat dissipation aluminum plate 3 back to heat conduction silica gel pad 4 is equipped with a plurality of radiating fin 6, form second guiding gutter 7 between the adjacent radiating fin 6, still be equipped with a plurality of guiding holes 8 that are used for communicateing first guiding gutter 5 and second guiding gutter 7 on the heat dissipation aluminum plate 3, 1 both ends of casing are equipped with respectively with the first ventilation hole 9 of first guiding gutter 5 and second guiding gutter 7 intercommunication, 1 bottom of casing still is equipped with a plurality of second ventilation hole 10 just right to heat dissipation aluminum plate 3, heat dissipation aluminum plate 3 is fixed in 1 bottom of casing, fix through being equipped with the bolt between mainboard 2 and the heat dissipation aluminum plate 3.
By adopting the technical scheme, the heat-conducting silica gel pad 4 plays a role in rapid heat conduction, heat on the main board 2 is conducted to the heat-radiating aluminum plate 3, and the heat-radiating area is increased through the heat-radiating fins 6; the arrangement of the first guide grooves 5 is convenient for ventilation and heat dissipation between the adjacent heat-conducting silica gel pads 4, the heat dissipation efficiency is improved, the second guide grooves 7 are convenient for ventilation and heat dissipation between the adjacent heat dissipation fins 6, the guide holes 8 are convenient for air flow between the first guide grooves 5 and the second guide grooves 7, the heat dissipation is further accelerated, and the first vent holes 9 and the second vent holes 10 can improve the air flow inside and outside the frequency converter, so that the heat is conveniently discharged outside; in addition, the mainboard 2, the heat-conducting silica gel pad 4 and the heat-radiating aluminum plate 3 are sequentially overlapped, the heat-radiating aluminum plate 3 is fixed on the bottom of the shell 1, and the mainboard 2 and the heat-radiating aluminum plate 3 are fixed by bolts, so that the heat-conducting silica gel pad 4 can play a certain role in damping and buffering the mainboard 2, the stability of the mainboard 2 is improved, and the influence of external vibration is avoided; through the structure, the heat dissipation and the stability inside the frequency converter are improved, namely the protection performance is improved, so that the applicability of the frequency converter is wider.
The utility model discloses further set up to: a plurality of third ventilation holes 13 are further formed in the two sides of the shell 1, a baffle 14 is arranged on the inner side of each third ventilation hole 13, a ventilation hole 15 is formed in each baffle 14, the ventilation holes 15 and the third ventilation holes 13 are arranged in a staggered mode, and a ventilation sponge 16 is arranged between each baffle 14 and each third ventilation hole 13.
By adopting the technical scheme, the air flow inside and outside the frequency converter can be improved and the heat dissipation is accelerated by arranging the third ventilation holes 13; the baffle 14 can be clamped on the shell 1, the breathable sponge 16 is clamped between the side wall of the shell 1 and the baffle 14, and external dust can be adsorbed and filtered by the baffle 14 and the breathable sponge 16, so that the dust is prevented from directly entering the shell 1; meanwhile, the air guide holes 15 and the third air guide holes 13 are arranged in a staggered mode and are provided with the air-permeable sponge 16, so that a small amount of liquid such as water can be absorbed, and the phenomenon that the inside of the frequency converter is directly damaged due to sputtering or small amount of toppling-over of external liquid is avoided.
The utility model discloses further set up to: the first vent hole 9 is provided with a fan cover 17, and the first vent hole 9 is internally provided with a fan 18.
By adopting the technical scheme, the fan 18 is arranged at the first ventilation hole 9, the circuit of the fan 18 can be connected with the power module of the frequency converter, and the fan 18 accelerates the heat dissipation inside the frequency converter.
The utility model discloses further set up to: and the fan cover 17 and the second ventilation hole 10 are both provided with fiber filter screens 19.
Through adopting above-mentioned technical scheme, fiber screen 19 can bond on fan housing 17 and second venthole 10, and fiber screen 19 is woven by the fibre and forms, has good gas permeability, and plays certain barrier effect to dust and liquid, under the prerequisite of guaranteeing the gas permeability, plays the guard action to the converter inside.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, 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 (4)
1. The utility model provides a high general converter of high-power of high protectiveness, includes casing (1), installs mainboard (2) in casing (1) and installs the electronic component on mainboard (2), its characterized in that: the bottom surface of the main board (2) is provided with a heat dissipation assembly, the heat dissipation assembly comprises a heat dissipation aluminum plate (3) and a heat conduction silica gel pad (4), the heat conduction silica gel pad (4) is formed by a plurality of heat dissipation aluminum plates (3) and the main board (2) in a rectangular array structure, a first diversion trench (5) is formed between adjacent heat conduction silica gel pads (4), one side of each heat dissipation aluminum plate (3) back to the heat conduction silica gel pad (4) is provided with a plurality of heat dissipation fins (6), a second diversion trench (7) is formed between adjacent heat dissipation fins (6), the heat dissipation aluminum plates (3) are further provided with a plurality of diversion holes (8) for communicating the first diversion trench (5) with the second diversion trench (7), the two ends of the shell (1) are respectively provided with first ventilation holes (9) communicated with the first diversion trench (5) and the second diversion trench (7), the bottom of the shell (1) is further provided with a plurality of second ventilation holes (10) right opposite, the heat dissipation aluminum plate (3) is fixed on the bottom of the shell (1), and the main board (2) and the heat dissipation aluminum plate (3) are fixed through bolts.
2. The high-protection high-power universal frequency converter according to claim 1, characterized in that: the novel air conditioner is characterized in that a plurality of third air through holes (13) are further formed in the two sides of the shell (1), a baffle (14) is arranged on the inner side of each third air through hole (13), air guide holes (15) are formed in the baffle (14), the air guide holes (15) and the third air through holes (13) are arranged in a staggered mode, and air permeable sponges (16) are arranged between the baffle (14) and the third air through holes (13).
3. The high-protection high-power universal frequency converter according to claim 1, characterized in that: and a fan cover (17) is arranged on the first air vent (9), and a fan (18) is arranged in the first air vent (9).
4. A high-protection high-power universal frequency converter according to claim 3, characterized in that: and the fan cover (17) and the second ventilation hole (10) are both provided with fiber filter screens (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311095.3U CN209982326U (en) | 2019-08-13 | 2019-08-13 | High-protection high-power general frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311095.3U CN209982326U (en) | 2019-08-13 | 2019-08-13 | High-protection high-power general frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209982326U true CN209982326U (en) | 2020-01-21 |
Family
ID=69251613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921311095.3U Active CN209982326U (en) | 2019-08-13 | 2019-08-13 | High-protection high-power general frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209982326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271857A (en) * | 2020-11-12 | 2021-01-26 | 珠海格力电器股份有限公司 | Housing assembly and motor |
| CN116436371A (en) * | 2023-05-11 | 2023-07-14 | 佛山市顺德区汇天五金电器制造有限公司 | Frequency converter with heat radiation structure |
-
2019
- 2019-08-13 CN CN201921311095.3U patent/CN209982326U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112271857A (en) * | 2020-11-12 | 2021-01-26 | 珠海格力电器股份有限公司 | Housing assembly and motor |
| CN112271857B (en) * | 2020-11-12 | 2021-11-23 | 珠海格力电器股份有限公司 | Housing assembly and motor |
| CN116436371A (en) * | 2023-05-11 | 2023-07-14 | 佛山市顺德区汇天五金电器制造有限公司 | Frequency converter with heat radiation structure |
| CN116436371B (en) * | 2023-05-11 | 2024-01-23 | 深圳市源信电气技术有限公司 | Frequency converter with heat radiation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high protection and high power general purpose inverter Effective date of registration: 20200730 Granted publication date: 20200121 Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd. Registration number: Y2020330000559 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220215 Granted publication date: 20200121 Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd. Registration number: Y2020330000559 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high protective high-power universal frequency converter Effective date of registration: 20220224 Granted publication date: 20200121 Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd. Registration number: Y2022330000254 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230214 Granted publication date: 20200121 Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd. Registration number: Y2022330000254 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A High Protection and High Power Universal Inverter Effective date of registration: 20230303 Granted publication date: 20200121 Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd. Registration number: Y2023330000459 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200121 Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd. Registration number: Y2023330000459 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A High Protection and High Power Universal Inverter Granted publication date: 20200121 Pledgee: Taizhou Luqiao sub branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG JINLONG ELECTRICAL MACHINERY STOCK Co.,Ltd. Registration number: Y2024330000719 |