Special-shaped power amplifier radiator

Abstract

The utility model discloses a special-shaped power amplifier radiator, which relates to the technical field of power amplifier heat dissipation and comprises a shell, an electronic element is arranged in the shell, a heat dissipation fan is arranged on one side of the electronic element, and an adjusting assembly is arranged on one side of the heat dissipation fan. The adjusting assembly comprises a driving part and an adjusting part, the adjusting part comprises an air adjusting plate, a ventilation opening is formed in the end, away from the electronic element, of the shell, the air adjusting plate is located in the ventilation opening, and the air adjusting plate is connected with the ventilation opening of the shell through a rotating shaft in the air adjusting plate. The ventilation opening can be adjusted within the range from complete closing to complete opening, so that the ventilation quantity in the power amplifier is controlled, when the air quantity of the ventilation groove is increased, the air quantity sucked by the cooling fan is increased, the ventilation effect is improved, the static pressure is made to deviate to a high working point, more air is driven to pass through the cooling fan, the ventilation quantity is increased, and the service life of the power amplifier is prolonged. Therefore, the heat dissipation efficiency is improved, and the working stability is prevented from being influenced by insufficient heat dissipation air exchange volume.

Description

Technical Field

[0001] The utility model relates to the technical field of power amplifier heat dissipation, in particular to a special-shaped power amplifier radiator. Background Art

[0002] A power amplifier is abbreviated as a power amplifier. It refers to an amplifier that can generate maximum power output to drive a load (such as a speaker) under given distortion conditions. The power amplifier plays a pivotal role in the entire audio system, and to some extent dominates whether the entire system can provide good sound quality output. Power amplifiers are widely used in many applications, such as audio systems, televisions, radios, wireless communication systems, etc. They can provide enough power to drive various types of loads, from small home audio systems to large-scale concert or performance venue audio systems.

[0003] The radiator inside the existing power amplifier usually dissipates heat through a cooling fan. However, when the power amplifier is running for a long time and the load is large, the cooling fan usually increases the speed to improve the cooling efficiency. However, the heat sink of the power amplifier is fixed. When the static pressure at the working point of the cooling fan remains unchanged, that is, the resistance overcome by the output air volume of the cooling fan remains unchanged, if only the speed of the cooling fan is adjusted, the air volume circulated and exchanged for the actual heat dissipation of the power amplifier cannot achieve the expected effect, so that the air volume exchanged for the actual heat dissipation of the power amplifier is insufficient to effectively reduce the temperature of the power amplifier, affecting its working stability, shortening the life of components, and even causing equipment damage. Utility Model Content

[0004] The utility model aims to provide a special-shaped power amplifier radiator to solve the problems raised in the prior art.

[0005] To achieve the above object, the utility model provides the following technical solutions: a special-shaped power amplifier radiator, comprising a shell, an electronic component is arranged inside the shell, a cooling fan is arranged on one side of the electronic component, and an adjustment component is arranged on one side of the cooling fan;

[0006] The adjusting component includes a driving component and an adjusting component. The adjusting component includes an air regulating plate. A vent is opened at one end of the shell away from the electronic component. The air regulating plate is located inside the vent. The air regulating plate is connected to the vent of the shell through an internal rotating shaft. A gear is fixedly connected to one end of the rotating shaft.

[0007] As a preferred technical solution, the driving component includes a thermal expansion block, one end of the shell body near the air regulating plate is fixedly connected to a limit box, the thermal expansion block is located inside the limit box, the bottom of the thermal expansion block is fixedly connected to a plate body, the bottom of the plate body is fixedly connected to an L-shaped rod, one end of the limit box is provided with a slide groove, the L-shaped rod is slidably connected to the slide groove, the outer end of the L-shaped rod is fixedly connected to a rack plate, and the rack plate on one side of the L-shaped rod is driven to move by the thermal expansion block.

[0008] As an optimal technical solution, a sliding groove is opened on the inner wall of the shell, the rack plate is slidably connected to the sliding groove, the rack plate is meshed with the gear, and a trigger assembly is provided at the bottom of the L-shaped rod. The rack plate is limited by the sliding groove, and the gear is driven to rotate when the rack plate moves.

[0009] As a preferred technical solution, the trigger assembly includes a connecting rod, which is fixedly connected to the L-shaped rod. The bottom of the connecting rod is fixedly connected to a spring. One end of the shell and the spring are fixedly connected to contacts, and the speed of the cooling fan can be adjusted through the contacts.

[0010] As an optimal technical solution, filter nets are provided between the top and bottom of the air regulating plate and the ventilation slots of the shell, and elastic pads are provided between the left and right ends of the air regulating plate and the ventilation slots to prevent dust from entering the interior of the shell through the filter nets and elastic pads.

[0011] As a preferred technical solution, the initial diameter of the thermal expansion block is the same as the inner diameter of the limit box, and a pressure sensor is provided at the bottom of the contact on the shell to sense the force applied to the contact.

[0012] As a preferred technical solution, an electric push rod is provided inside the limit box, and the output end of the electric push rod is fixedly connected to the plate body, so that the electric push rod is more stable than the thermal expansion block 7.

[0013] As a preferred technical solution, a temperature sensor is provided inside the limit box, and a controller is provided inside the shell. The controller is electrically connected to the cooling fan, contacts, electric push rod, temperature sensor and pressure sensor. The operation of the cooling fan and electric push rod can be controlled by the controller.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can adjust the vents within the range from fully closed to fully open by setting the adjustment components, so as to control the ventilation volume inside the amplifier. When the air volume of the ventilation slots is increased, the amount of air inhaled by the cooling fan increases, the ventilation effect is improved, and the static pressure is biased toward a higher working point, thereby driving more air through the cooling fan, increasing the ventilation volume, and further improving the heat dissipation efficiency, avoiding the influence of insufficient heat dissipation and air exchange volume on its working stability.

[0016] 2. The more heat the thermal expansion block of the utility model receives, the more the connecting rod drops, thereby increasing the sensing force of the pressure sensor. The controller can adjust the speed of the cooling fan according to the magnitude of the force sensed by the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection structure between the limit box and the plate body of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the adjustment component of the utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the housing and the air regulating plate of the utility model;

[0022] Figure 6 It is a schematic diagram of the connection structure between the electric push rod and the plate body of the utility model.

[0023] Numbers in the figure: 1. Shell; 2. Electronic components; 3. Cooling fan; 4. Air regulating plate; 5. Limit box; 6. Plate; 7. Thermal expansion block; 8. Connecting rod; 9. L-shaped rod; 10. Rack plate; 11. Spring; 12. Contact; 13. Gear; 14. Elastic pad; 15. Filter; 16. Electric push rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] like Figure 1-Figure 5 As shown, the utility model provides the following technical solution, including a housing 1, an electronic component 2 is arranged inside the housing 1, a heat dissipation fan 3 is arranged on one side of the electronic component 2, and an adjustment component is arranged on one side of the heat dissipation fan 3;

[0027] The adjusting component includes a driving component and an adjusting component, and the adjusting component includes an air regulating plate 4. A vent is opened at one end of the shell 1 away from the electronic component 2, and the air regulating plate 4 is located inside the vent. The air regulating plate 4 is connected to the vent of the shell 1 through an internal rotating shaft, and a gear 13 is fixedly connected to one end of the rotating shaft.

[0028] Among them: the adjustment component can adjust the vent from fully closed to fully open, so as to control the ventilation volume inside the power amplifier. When the air volume of the ventilation slot is increased, the amount of air inhaled by the heat dissipation fan 3 increases, the ventilation effect is improved, and the static pressure is biased toward a higher working point, thereby driving more air through the heat dissipation fan 3, increasing the ventilation volume, and thus improving the heat dissipation efficiency, avoiding the influence of insufficient heat dissipation and air exchange volume on its working stability;

[0029] Adjusting the ventilation volume can adapt to different workloads and temperature conditions, ensuring that the amplifier can obtain proper heat dissipation under various operating conditions, and preventing dust and particles from entering the interior of the housing 1 when it is turned off.

[0030] like Figure 3 and Figure 4 As shown, the driving component includes a thermal expansion block 7, one end of the shell 1 near the air regulating plate 4 is fixedly connected to a limit box 5, the thermal expansion block 7 is located inside the limit box 5, the bottom of the thermal expansion block 7 is fixedly connected to a plate body 6, the bottom of the plate body 6 is fixedly connected to an L-shaped rod 9, one end of the limit box 5 is provided with a slide groove, the L-shaped rod 9 is slidably connected to the slide groove, the outer end of the L-shaped rod 9 is fixedly connected to a rack plate 10, a filter screen 15 is provided between the top and bottom of the air regulating plate 4 and the ventilation slot of the shell 1, and an elastic pad 14 is provided between the left and right ends of the air regulating plate 4 and the ventilation slot.

[0031] Among them: when the power amplifier is running, the temperature inside the power amplifier will increase. When the temperature rises, because the thermal expansion block 7 is made of polyurethane material, it expands when heated. Because the limit box 5 limits the three ends of the thermal expansion block 7, it can only move to the lower end. When it moves to the lower end, it drives the rack plate 10 on one side of the L-shaped rod 9 to move downward. The rack plate 10 moves downward and drives the gear 13 to rotate. When the gear 13 rotates, it drives the air regulating plate 4 to rotate. When the air regulating plate 4 rotates, it drives the filter 15 to unfold. At this time, a gap is generated between the ventilation slot of the shell 1 and the air regulating plate 4, so that convection is generated between the cooling fan 3 and the gap, thereby increasing the heat dissipation effect of the power amplifier and achieving ventilation and heat dissipation.

[0032] When the temperature to which the thermal expansion block 7 is subjected is higher, the rack plate 10 will be driven to move a greater distance, and the gear 13 will rotate at a greater angle. At this time, the gap between the air regulating plate 4 and the ventilation slot will be larger. If the rotation speed of the cooling fan 3 is adjusted at this time, the air flow will be strengthened, so that more air can enter and flow through the ventilation slot and contact with the heat source, thereby accelerating the heat dissipation rate.

[0033] like Figure 3 and Figure 4As shown, a slide groove is provided on the inner wall of the shell 1, and a rack plate 10 is slidably connected to the slide groove, and the rack plate 10 is meshed with a gear 13. A trigger assembly is provided at the bottom of the L-shaped rod 9, and the trigger assembly includes a connecting rod 8, and the connecting rod 8 is fixedly connected to the L-shaped rod 9. A spring 11 is fixedly connected to the bottom of the connecting rod 8, and one end of the shell 1 and the spring 11 are fixedly connected to a contact 12. The initial diameter of the thermal expansion block 7 is the same as the inner diameter of the limit box 5. A pressure sensor is provided at the bottom of the contact 12 on the shell 1, and the model of the pressure sensor is Sensata 116CP.

[0034] Among them: when the L-shaped rod 9 descends, it drives the connecting rod 8 to move downward. When the contact 12 below the connecting rod 8 contacts the contact 12 on the shell 1, the pressure sensor will sense the force and send a signal to the controller. The controller controls the fan speed to increase. When the thermal expansion block 7 is subjected to more heat, the connecting rod 8 will descend more, which increases the induced force of the pressure sensor. The controller can adjust the speed of the cooling fan 3 according to the size of the force sensed by the pressure sensor.

[0035] Embodiment 2

[0036] like Figure 6 As shown, an electric push rod 16 is provided inside the limit box 5, and the output end of the electric push rod 16 is fixedly connected to the plate body 6. A temperature sensor is provided inside the limit box 5. A controller is provided inside the shell 1. The controller is electrically connected to the cooling fan 3, the contact 12, the electric push rod 16, the temperature sensor and the pressure sensor. The model of the temperature sensor is PT100.

[0037] Different from the first embodiment, the rack plate 10 can also be driven by the electric push rod 16, which is more stable than the thermal expansion block 7. In this case, a temperature sensor is required to detect the temperature of the power amplifier in real time to drive the movement of the rack plate 10.

[0038] The working principle based on the first embodiment is: when the power amplifier is running, the temperature inside the power amplifier will increase. When the temperature increases, the thermal expansion block 7 can only move downward. When it moves downward, it drives the rack plate 10 on one side of the L-shaped rod 9 to move downward. The rack plate 10 moves downward and drives the gear 13 to rotate. When the gear 13 rotates, it drives the air regulating plate 4 to rotate. When the air regulating plate 4 rotates, it drives the filter 15 to unfold. At this time, a gap is generated between the ventilation slot of the shell 1 and the air regulating plate 4, so that convection is generated between the cooling fan 3 and the gap, thereby increasing the heat dissipation effect of the power amplifier and achieving ventilation and heat dissipation.

[0039] When the temperature to which the thermal expansion block 7 is subjected is higher, the rack plate 10 will be driven to move a greater distance, and the gear 13 will rotate at a greater angle. At this time, the gap between the air regulating plate 4 and the ventilation slot will be larger. If the rotation speed of the cooling fan 3 is adjusted at this time, the air flow will be strengthened, so that more air can enter and flow through the ventilation slot and contact with the heat source, thereby accelerating the heat dissipation rate.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A special-shaped power amplifier radiator, characterized in that: include: A housing (1), wherein an electronic component (2) is arranged inside the housing (1), a heat dissipation fan (3) is arranged on one side of the electronic component (2), and an adjustment component is arranged on one side of the heat dissipation fan (3); The regulating assembly comprises a driving component and a regulating component, the regulating component comprises an air regulating plate (4), a vent is provided at one end of the housing (1) away from the electronic component (2), the air regulating plate (4) is located inside the vent, the air regulating plate (4) is connected to the vent of the housing (1) via an internal rotating shaft, and a gear (13) is fixedly connected to one end of the rotating shaft.

2. The special-shaped power amplifier radiator according to claim 1, characterized in that: The driving component comprises a heat expansion block (7), one end of the shell (1) close to the air regulating plate (4) is fixedly connected to a limit box (5), the heat expansion block (7) is located inside the limit box (5), the bottom of the heat expansion block (7) is fixedly connected to a plate body (6), the bottom of the plate body (6) is fixedly connected to an L-shaped rod (9), one end of the limit box (5) is provided with a slide groove, the L-shaped rod (9) is slidably connected to the slide groove, and the outer end of the L-shaped rod (9) is fixedly connected to a rack plate (10).

3. The special-shaped power amplifier radiator according to claim 2, characterized in that: The inner wall of the housing (1) is provided with a sliding groove, the rack plate (10) is slidably connected to the sliding groove, the rack plate (10) is meshed with the gear (13), and a trigger assembly is provided at the bottom of the L-shaped rod (9).

4. The special-shaped power amplifier heat sink according to claim 3, characterized in that: The trigger assembly comprises a connecting rod (8), wherein the connecting rod (8) is fixedly connected to an L-shaped rod (9), a spring (11) is fixedly connected to the bottom of the connecting rod (8), and a contact (12) is fixedly connected to one end of the housing (1) and the spring (11).

5. The special-shaped power amplifier heat sink according to claim 1, characterized in that: Filter screens (15) are provided between the top and bottom of the air regulating plate (4) and the ventilation slots of the shell (1), and elastic pads (14) are provided between the left and right ends of the air regulating plate (4) and the ventilation slots.

6. The special-shaped power amplifier heat sink according to claim 2, characterized in that: The initial diameter of the thermal expansion block (7) is the same as the inner diameter of the limit box (5), and a pressure sensor is provided at the bottom of the contact point (12) on the housing (1).

7. The special-shaped power amplifier heat sink according to claim 4, characterized in that: An electric push rod (16) is arranged inside the limit box (5), and the output end of the electric push rod (16) is fixedly connected to the plate body (6).

8. The special-shaped power amplifier heat sink according to claim 7, characterized in that: A temperature sensor is provided inside the limit box (5), and a controller is provided inside the housing (1). The controller is electrically connected to the cooling fan (3), the contact (12), the electric push rod (16), the temperature sensor, and the pressure sensor.

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