CN201210647Y - Switched mode power supply component for power amplifier - Google Patents
Switched mode power supply component for power amplifier Download PDFInfo
- Publication number
- CN201210647Y CN201210647Y CNU2008200468191U CN200820046819U CN201210647Y CN 201210647 Y CN201210647 Y CN 201210647Y CN U2008200468191 U CNU2008200468191 U CN U2008200468191U CN 200820046819 U CN200820046819 U CN 200820046819U CN 201210647 Y CN201210647 Y CN 201210647Y
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- China
- Prior art keywords
- heat radiating
- side heat
- metal spare
- radiating metal
- power amplifier
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- Expired - Fee Related
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- Cooling Or The Like Of Electrical Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model relates to a power amplifier switch power module, which is separated from a switch type volatge transformation partial area with high frequency electromagnetic radiation through input and output of the circuit board modules, forming three independent electromagnetic screen cavities, thereby reducing interference of electromagnetic radiation to the input and output, meanwhile, vents are arranged on the metal piece, forced air convection is formed through a fan, causing the device with excellent heat emission and heat conduction; heat generated by heaters is transmitted to a metal case and is fast dispersed. The product is assembled in the inner part of a power amplifier which hands can not direct contact, which utilizes the metal case to emit heat, no scald is present. In addition, an output interface patch panel with agile replace is adopted, thereby being convenient and fast to replace output interface types.
Description
Technical field
The utility model relates to a kind of switch power supply equipment, particularly a kind ofly adapts to that existing electromagnetic interference is serious, the power amplifier high power switching power supply assembly of needs large volume radiator.
Background technology
Power amplifier uses the Switching Power Supply assembly, can reduce weight very significantly, raises the efficiency, and it is the extremely important motive force of development of power amplifier that the Switching Power Supply assembly is replaced the traditional transformer power supply module.And existing power amplifier Switching Power Supply assembly, its electromagnetic interference is difficult to suppress, particularly high-power power amplifier, and the electromagnetic interference that the Switching Power Supply assembly is produced during instant heavy has seriously been disturbed the operate as normal of power amplifier especially, has reduced the power amplifier machine performance; Using in the high power switching power supply assembly at existing power amplifier simultaneously, all is to adopt large-scale metalwork to dispel the heat, and will increase the complete machine weight and the cost of power amplifier like this; More there be the bad fail safe of power amplifier complete machine and the reliability of causing of heat dissipation design seriously to reduce, influenced consumer's use.
The utility model content
The technical problem that the utility model solves provides a kind of power amplifier Switching Power Supply assembly, use very rational structure and heat dissipation design, the Switching Power Supply assembly is being equal under the power condition, can further reduces volume and electromagnetic interference, and effectively improved the mechanical performance of Switching Power Supply assembly; Be more convenient for electric power between Switching Power Supply assembly and the power amplifier to refute and connect, thereby the fail safe of power amplifier complete machine and reliability are improved.
For addressing the above problem, a kind of power amplifier Switching Power Supply assembly of the present utility model, include shell, described shell includes cabinet lower cover 10 and chassis cover, on described cabinet lower cover 10, installed circuit board assemblies 50, device has input side heat radiating metal spare 30, outlet side heat radiating metal spare 60 on described circuit board assemblies 50, and described input side heat radiating metal spare 30, outlet side heat radiating metal spare 60 are divided into input circuit subregion A, voltage conversion circuit subregion B, three relatively independent electromagnetic shielding cavitys of output circuit subregion C with circuit board assemblies 50 subregions; All high-power heater members and temperature sensing device all are fixed on described input side heat radiating metal spare 30, both sides heat-conducting metal spare 40 and the described outlet side heat radiating metal spare 60, wherein metal parts all closely is fixed on chassis cover, leaves so that the part heat is transmitted on the chassis cover.
Wherein, can be provided with fixed leg on the described cabinet lower cover 10, described circuit board assemblies 50 is fixed on the described cabinet lower cover 10 by described fixed leg.
Wherein, can install auxiliary heat dissipation fan 20 on the described input side heat radiating metal spare 30, have ventilation hole on the front and back side plate of described cabinet lower cover 10, to form inner air and outer air convection type heat dissipation channel structure.
Wherein, cabinet lower cover 10, chassis cover, input side heat radiating metal spare 30, outlet side heat radiating metal spare 60 are cabinet lower cover 10, chassis cover, input side heat radiating metal spare 30, the outlet side heat radiating metal spare 60 that has the metal or the metal plating piece material of good heat radiating, heat transfer and effectiveness and have the effect of reinforcing the product mechanical performance.
Wherein, described voltage conversion circuit subregion B is placed in the centre position of circuit board assemblies 50, include input rectifying filtering and voltage conversion circuit, it has comprised parts such as the input side heat radiating metal spare 30 of having fixed the input rectifying device, the both sides heat-conducting metal spare 40 of having fixed the voltage transformation power device, the outlet side heat radiating metal spare 60 of having fixed output rectifier spare, high-pressure side master's filter capacitor 70, high frequency transformer 80.
Wherein, described input circuit subregion A is made of input side heat radiating metal spare 30 and shell, and interchange input interface and electromagnetic compatibility filter element have been placed by this district.
Wherein, output circuit subregion C is made of outlet side heat radiating metal spare 60 and shell, has placed the filter element 90 of direct current output and the output interface keyset 100 that can change flexibly at described output circuit subregion C.
Compared with prior art, the utlity model has following beneficial effect:
Power amplifier of the present utility model cooperates shell with the Switching Power Supply assembly by two groups of metal partss, the input and output of circuit board assemblies are separated with the switching regulator voltage transformating part subregion with high frequency electromagnetic radiation respectively, form three independently electromagnetic shielding cavitys, reduce the interference of electromagnetic radiation to input and output, above-mentioned metalwork has all designed ventilation hole simultaneously, form forced air convection by fan, make it possess good heat radiation and heat conduction function; The heat transferred that heater members can also be produced also dissipates rapidly to metal shell.
Secondly, power amplifier of the present utility model can be assemblied in the power amplifier inside that staff can not directly touch with the Switching Power Supply assembly, utilizes the metal shell heat radiation not have the scald problem.
Once more, power amplifier of the present utility model also can adopt the output interface keyset that can change flexibly with the Switching Power Supply assembly, can change the output interface type quickly and easily.
Description of drawings
Fig. 1 is the element spare bitmap of the utility model power amplifier with the Switching Power Supply assembly.
Embodiment
With reference to shown in Figure 1, a kind of power amplifier of the present utility model a kind of embodiment of Switching Power Supply assembly, described power amplifier uses the Switching Power Supply assembly apparatus in power amplifier inside, include shell (for example adopting metal shell) and device circuit board assemblies in the enclosure, finish from electric main and be input to the output of many group DC-isolation, use to power amplifier so that electric energy to be provided.
Describe in detail below, shell is made up of cabinet lower cover 10 and chassis cover in the utility model, on cabinet lower cover 10, installed circuit board assemblies 50, device has input side heat radiating metal spare 30, outlet side heat radiating metal spare 60 on circuit board assemblies 50, and above-mentioned parts are divided into input circuit subregion A, voltage conversion circuit subregion B, three relatively independent electromagnetic shielding cavitys of output circuit subregion C with the circuit board assemblies subregion; All high-power heater members and temperature sensing device all rationally are fixed on described input side heat radiating metal spare 30, both sides heat-conducting metal spare 40 and the outlet side heat radiating metal spare 60, described metalwork all closely is fixed on the chassis cover by screw, and can coat the silicone grease that can strengthen heat-conducting effect at contact-making surface; Three relatively independent electromagnetic shielding cavitys are not disturbed mutually, can obviously improve the electromagnetic compatibility characteristic, reduce radiated interference, improve the tonequality of power amplifier; Most of heat that heater is produced will be transmitted on the chassis cover by the each several part metalwork.
In the utility model because of the Switching Power Supply assembly apparatus in power amplifier inside, and also there is radiator fan power amplifier inside, the moving air that its radiator fan produced can flow through the casing surface of this Switching Power Supply assembly, and then effectively promote its radiating effect, in addition, can on described input side heat radiating metal spare 30, install auxiliary heat dissipation fan 20 in the utility model, produce cross-ventilation by the ventilation hole that designs on the metalwork, form Switching Power Supply assembly inner air and outer air convection type heat dissipation channel structure, can further improve radiating effect, also can make power amplifier integral heat sink better effects if, it is more stable to work.
Need illustrate, also can be equipped with the output interface keyset 100 that to change flexibly, to change the output interface type quickly and easily in the utility model in the both sides of the output circuit subregion C of circuit board assemblies 50 part.
The voltage conversion circuit subregion B that is made up of input rectifying filtering and voltage conversion circuit in the utility model is placed in the centre position of circuit board assemblies, comprise parts such as the input side heat radiating metal spare 30 of having fixed the input rectifying device, the both sides heat-conducting metal spare 40 of having fixed the voltage transformation power device, the outlet side heat radiating metal spare 60 of having fixed output rectifier spare, high-pressure side master's filter capacitor 70, high frequency transformer 80, finish rectification, filtering and the voltage isolation mapping function of electric main.
And input side heat radiating metal spare 30 and shell have constituted input circuit subregion A, and interchange input interface and electromagnetic compatibility filter element have been placed by this district, finish electric main input and electromagnetic compatibility filter function;
In addition, outlet side heat radiating metal spare 60 and shell have then constituted output circuit subregion C, the multiple filter element 90 of direct current output, the special-purpose supper-fast rectifying device of Switching Power Supply that is fixed in outlet side heat radiating metal spare 60 and the output interface keyset 100 that can change have flexibly been placed by this district, can make things convenient for, select flexibly the output of various interface type and function, finish the function of lower pressure rectifier, filtering output and auxiliary circuit control.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1, a kind of power amplifier Switching Power Supply assembly, include shell, it is characterized in that: described shell includes cabinet lower cover (10) and chassis cover, gone up device circuit board assemblies (50) at described cabinet lower cover (10), go up device at described circuit board assemblies (50) input side heat radiating metal spare (30) is arranged, outlet side heat radiating metal spare (60), described input side heat radiating metal spare (30), outlet side heat radiating metal spare (60) is divided into input circuit subregion A with circuit board assemblies (50) subregion, voltage conversion circuit subregion B, three relatively independent electromagnetic shielding cavitys of output circuit subregion C; All high-power heater members and temperature sensing device all are fixed on described input side heat radiating metal spare (30), both sides heat-conducting metal spare (40) and the described outlet side heat radiating metal spare (60), wherein metal parts all closely is fixed on chassis cover, leaves so that the part heat is transmitted on the chassis cover.
2, a kind of power amplifier Switching Power Supply assembly according to claim 1, it is characterized in that: described cabinet lower cover (10) is provided with fixed leg, and described circuit board assemblies (50) is fixed on the described cabinet lower cover (10) by described fixed leg.
3, a kind of power amplifier Switching Power Supply assembly according to claim 1, it is characterized in that: can install auxiliary heat dissipation fan (20) on the described input side heat radiating metal spare (30), have ventilation hole on the front and back side plate of described cabinet lower cover (10), to form inner air and outer air convection type heat dissipation channel structure.
4, a kind of power amplifier Switching Power Supply assembly according to claim 1 is characterized in that: cabinet lower cover (10), chassis cover, input side heat radiating metal spare (30), outlet side heat radiating metal spare (60) are cabinet lower cover (10), chassis cover, input side heat radiating metal spare (30), the outlet side heat radiating metal spare (60) that has the metal or the metal plating piece material of good heat radiating, heat transfer and effectiveness and have the effect of reinforcing the product mechanical performance.
5, a kind of power amplifier Switching Power Supply assembly according to claim 1, it is characterized in that: described voltage conversion circuit subregion B is placed in the centre position of circuit board assemblies (50), include input rectifying filtering and voltage conversion circuit, it has comprised the input side heat radiating metal spare (30) of having fixed the input rectifying device, the both sides heat-conducting metal spare (40) of having fixed the voltage transformation power device, the outlet side heat radiating metal spare (60) of having fixed output rectifier spare, high-pressure side master's filter capacitor (70), high frequency transformer parts such as (80).
6, a kind of power amplifier Switching Power Supply assembly according to claim 1 is characterized in that: described input circuit subregion A is made of input side heat radiating metal spare (30) and shell, and interchange input interface and electromagnetic compatibility filter element have been placed by this district.
7, a kind of power amplifier Switching Power Supply assembly according to claim 1, it is characterized in that: output circuit subregion C is made of outlet side heat radiating metal spare (60) and shell, has placed the filter element (90) of direct current output and the output interface keyset (100) that can change flexibly at described output circuit subregion C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200468191U CN201210647Y (en) | 2008-04-24 | 2008-04-24 | Switched mode power supply component for power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200468191U CN201210647Y (en) | 2008-04-24 | 2008-04-24 | Switched mode power supply component for power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210647Y true CN201210647Y (en) | 2009-03-18 |
Family
ID=40481383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200468191U Expired - Fee Related CN201210647Y (en) | 2008-04-24 | 2008-04-24 | Switched mode power supply component for power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210647Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509411A (en) * | 2011-10-26 | 2012-06-20 | 珠海拓普智能电气股份有限公司 | Linear optical fiber heat fire detector |
| CN106412765A (en) * | 2016-11-01 | 2017-02-15 | 广州声德电子有限公司 | Audio power amplifier |
| WO2017157095A1 (en) * | 2016-03-15 | 2017-09-21 | 中兴通讯股份有限公司 | Radio frequency shield box, power amplifier and radio frequency shielding method |
| CN109510455A (en) * | 2019-01-04 | 2019-03-22 | 武汉海达数云技术有限公司 | Power supply change-over device |
| CN113163597A (en) * | 2021-04-28 | 2021-07-23 | 科大智能（合肥）科技有限公司 | Direct current fills electric pile |
-
2008
- 2008-04-24 CN CNU2008200468191U patent/CN201210647Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509411A (en) * | 2011-10-26 | 2012-06-20 | 珠海拓普智能电气股份有限公司 | Linear optical fiber heat fire detector |
| WO2017157095A1 (en) * | 2016-03-15 | 2017-09-21 | 中兴通讯股份有限公司 | Radio frequency shield box, power amplifier and radio frequency shielding method |
| CN106412765A (en) * | 2016-11-01 | 2017-02-15 | 广州声德电子有限公司 | Audio power amplifier |
| CN106412765B (en) * | 2016-11-01 | 2018-01-02 | 广州声德电子有限公司 | Audio power amplifier device |
| CN109510455A (en) * | 2019-01-04 | 2019-03-22 | 武汉海达数云技术有限公司 | Power supply change-over device |
| CN113163597A (en) * | 2021-04-28 | 2021-07-23 | 科大智能（合肥）科技有限公司 | Direct current fills electric pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 |