Solid-state power amplifier

Abstract

The utility model provides a solid-state power amplifier, which is characterized in that an accommodating space is formed in a frame body, a channel extending along a first direction is arranged in the accommodating space, and the frame body is provided with a heat dissipation window communicated with the accommodating space; the heat dissipation window comprises a first air inlet and a first air outlet, the first air inlet is located at one end of the channel, and the first air outlet is located at the other end of the channel and right faces the channel. The power amplifier main body is assembled in the accommodating space; the power supply assembly is detachably connected to the frame body and movably connected to the channel, and the power supply assembly comprises a power supply body parallel to the first direction and a holding part protruding out of the frame body; the heat dissipation module is accommodated in the accommodating space; the heat dissipation module comprises a first fan and a first heat dissipation block, the first heat dissipation block is connected to the power source body and arranged on the heating face of the power source body, the first fan directly faces the first air outlet, the central axis of the first fan is parallel to the channel, and the first fan dissipates heat of the power amplifier body out of the frame body through the heat dissipation window. The size is greatly reduced by arranging the channel.

Description

Technical Field

[0001] The utility model belongs to the technical field of wireless communication, and in particular relates to a solid-state power amplifier. Background Art

[0002] Microwave and RF solid-state power amplifiers are components used to reproduce signals with greater power, current, and voltage. They can also be considered as circuits that convert self-current input into RF and microwave energy. Microwave and RF solid-state power amplifiers are usually composed of RF microwave power transistors, input and output matching circuits, DC feeds, bias circuits, control circuits, and switching power supplies. They are widely used in electronic countermeasures, wireless communications, radar, and radar jamming.

[0003] Microwave and radio frequency solid-state power amplifiers include indoor power amplifier products placed in standard cabinets in a machine room. The switching power supply in conventional indoor power amplifier products is fixed inside the product cavity. Therefore, the cavity of conventional indoor power amplifier products also includes a heat dissipation module for the switching power supply, which is used to dissipate the heat generated by the switching power supply to the outside of the product to reduce the temperature. However, the heat dissipation module used to reduce the heat of the switching power supply in the indoor power amplifier products in the related art is usually more complex in structure and occupies a larger space, making the entire indoor power amplifier product bulky and large in size. Utility Model Content

[0004] The technical purpose of the utility model is to provide a solid-state power amplifier, aiming to solve the technical problem in the related art that the heat dissipation module structure used to reduce the heat of the switching power supply in the indoor power amplifier product is relatively complex and occupies a large space, making the entire indoor power amplifier product relatively bulky and large in size.

[0005] In order to solve the above technical problems, the utility model is implemented as follows: a solid-state power amplifier comprises a frame, a power amplifier body, a power supply assembly and a heat dissipation module, a receiving space is formed inside the frame, the receiving space has a channel extending along a first direction and connected to the outside of the frame, and the frame is provided with a heat dissipation window connecting the receiving space and the outside; the heat dissipation window comprises a first air inlet and a first air outlet, the first air inlet is located at one end of the channel, and the first air outlet is located at one end of the channel and directly opposite to the channel; the power amplifier body is assembled in the receiving space; the power supply assembly is detachably connected to the receiving space The power supply assembly is connected to the frame and can be movably connected to the channel, and includes a power supply body parallel to the first direction, and a holding portion connected to the power supply body and protruding outside the frame; a heat dissipation module is accommodated in the accommodation space; the heat dissipation module includes a first fan and a first heat dissipation block, the first heat dissipation block is connected to the power supply body and is arranged on the heating surface of the power supply body, the first fan is directly opposite to the first air outlet, and the central axis of the first fan is parallel to the channel, and the first fan is also used to dissipate the heat generated by the power amplifier body to the outside of the frame through the heat dissipation window.

[0006] Furthermore, the solid-state power amplifier further includes a first shell and a second shell assembled in the accommodating space, and the first shell and the second shell are connected and enclosed to form the channel.

[0007] Furthermore, the first heat sink includes a plurality of first heat sinks, the power supply body includes a first side shell, the heat generating surface of the power supply body is formed on the first side shell, the plurality of first heat sinks are arranged at equal intervals on the first side shell, and the plate surfaces of the plurality of first heat sinks are parallel to the axial direction of the first fan.

[0008] Further, the first heat sink includes a first arc-shaped portion and a second arc-shaped portion close to both ends of the power supply body; wherein, the first arc-shaped portion is close to the first air outlet, and, along the first direction, from the first air outlet to the first air inlet, the first arc-shaped portion gradually expands; the second arc-shaped portion is close to the first air inlet, and, along the first direction, from the first air outlet to the first air inlet, the second arc-shaped portion gradually contracts.

[0009] Furthermore, the power supply assembly also includes a connecting portion connected to the gripping portion, at least a portion of the connecting portion is exposed outside the frame, and the connecting portion is detachably connected to the frame.

[0010] Furthermore, the connecting portion includes a connecting plate, the frame is provided with a through hole facing the channel, the connecting plate covers the through hole and is detachably connected to the frame, and at least part of the gripping portion protrudes from a side of the connecting plate away from the through hole.

[0011] Furthermore, the solid-state power amplifier also includes a plurality of captive screws, wherein the captive screws are connected to a side of the connecting plate away from the through hole, and the connecting plate and the frame are detachably connected via the captive screws.

[0012] Furthermore, the power supply assembly also includes a fixing member, the holding portion protrudes from the power supply body, and an end of the holding portion away from the power supply body protrudes from a side of the connecting plate away from the through hole, and the holding portion and the connecting plate are fixedly connected by the fixing member.

[0013] Furthermore, the holding portion includes a U-shaped body, the two ends of the U-shaped body are respectively an open end and a closed end, the open end is detachably connected to the power supply body, the closed end is penetrated through the connecting plate and partially protrudes from a side of the connecting plate away from the through hole, and the fixing member is fixedly connected to a side of the connecting plate facing the through hole and is detachably connected to the U-shaped body.

[0014] Compared with the related art, the solid-state power amplifier in the utility model has the following beneficial effects:

[0015] In the utility model, the receiving space inside the frame is equipped with a power amplifier body, and the power amplifier body is used to realize the function of a solid-state power amplifier.

[0016] In addition, there is a channel extending along the first direction in the receiving space, and the power supply assembly is detachably connected to the frame and movably connected to the channel. The power supply assembly includes a power supply body and a gripping portion connected to the power supply body and protruding outside the frame. Therefore, the power supply body can be assembled in the channel through the gripping portion, and the power supply body can also be taken out of the channel through the gripping portion, so that the power supply body can be easily assembled or removed from the frame, and hot-swappable of the power supply body can be achieved. When the power supply body needs to be repaired or replaced, there is no need to disassemble the frame and the amplifier body. It is only necessary to take the power supply body out of the channel through the gripping portion, and then assemble the repaired power supply body or the new power supply body into the channel through the gripping portion, so that the channel can be used as the channel of the power supply body. The whole process is convenient and simple, which greatly improves the maintainability of the product.

[0017] In addition, since the first heat sink is directly mounted on the heating surface of the power supply body, the first heat sink can directly take away the heat of the power supply body. The power supply body and the first heat sink are arranged in the channel, and the first air outlet and the first air inlet are respectively arranged at both ends of the channel, wherein the first air outlet is provided with a first fan, therefore, the first fan can drive the air flow from the first air outlet into the receiving space, and at the same time can drive the air flow to flow to the channel, so that the air flow can take away the heat of the first heat sink, and finally the heat is taken out of the frame through the first air inlet, so that the channel can also be used as an air duct. Since the channel extends along the first direction, that is, the air flow flows along the first direction, the flow path of the air flow can be shortened, and the heat of the first heat sink can be taken out of the frame faster and better, so as to achieve a better heat dissipation effect. The channel is defined and formed in the receiving space, and the power supply body and the first heat sink are both arranged in the channel, therefore, while ensuring the heat dissipation effect, the space can be planned well and the occupied volume can be reduced. At the same time, the first fan can also be used to dissipate the heat generated by the power amplifier body to the outside of the frame through the heat dissipation window, so as to further reduce the volume and weight of the product.

[0018] Therefore, in the present invention, by setting up a channel, hot plugging of the power supply body can be achieved, and the channel can also be used as an air duct to achieve the heat dissipation effect of the power supply body, so that the channel has a multifunctional role and can greatly reduce the volume of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a solid-state power amplifier in an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the first part of the structure of the solid-state power amplifier in the embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the second part of the structure of the solid-state power amplifier in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the structural decomposition of the third part of the solid-state power amplifier in the embodiment of the utility model.

[0024] In the accompanying drawings, each figure mark represents: 1. frame; 11. accommodating space; 111. channel; 1111. first U-shaped groove; 1112. second U-shaped groove; 112. subspace; 2. amplifier body; 3. power supply assembly; 31. power supply body; 32. gripping part; 33. connecting plate; 34. fixing part; 35. first electrical connection terminal; 4. heat dissipation module; 41. first fan; 42. first heat dissipation block; 421. first arc-shaped portion; 422. second arc-shaped portion; 43. second heat dissipation block; 44. third heat dissipation block; 45. second fan; 5. heat dissipation window; 51. first air outlet; 52. second air outlet; 53. first protective net; 54. second protective net; 55. protective cover; 6. captive screw; 7. second electrical connection terminal. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1-4The embodiment of the utility model provides a solid-state power amplifier, including a frame 1, a power amplifier body 2, a power supply assembly 3 and a heat dissipation module 4, wherein a receiving space 11 is formed inside the frame 1, and a channel 111 extending along a first direction is provided in the receiving space 11, and a heat dissipation window 5 connecting the receiving space 11 and the outside is opened in the frame 1; the heat dissipation window 5 includes a first air inlet and a first air outlet, the first air inlet is located at one end of the channel 111, and the first air outlet 51 is located at one end of the channel 111 and is directly opposite to the channel 111; the power amplifier body 2 is assembled in the receiving space 11; the power supply assembly 3 is detachably connected to the frame 1 And it can be movably connected to the channel 111, the power supply component 3 includes a power supply body 31 parallel to the first direction, and a holding portion 32 connected to the power supply body 31 and protruding outside the frame 1; the heat dissipation module 4 is accommodated in the accommodating space 11; the heat dissipation module 4 includes a first fan 41 and a first heat dissipation block 42, the first heat dissipation block 42 is connected to the power supply body 31 and is arranged on the heating surface of the power supply body 31, the first fan 41 is opposite to the first air outlet 51, and the central axis of the first fan 41 is parallel to the channel 111, and the first fan 41 is also used to dissipate the heat generated by the amplifier body 2 to the outside of the frame 1 through the heat dissipation window 5.

[0029] In the embodiment of the utility model, the receiving space 11 inside the frame 1 is equipped with a power amplifier body 2, and the power amplifier body 2 is used to realize the function of a solid-state power amplifier.

[0030] In addition, a channel 111 extending along the first direction is provided in the receiving space 11, and the power supply assembly 3 is detachably connected to the frame 1 and movably connected to the channel 111. The power supply assembly 3 includes a power supply body 31 and a gripping portion 32 connected to the power supply body 31 and protruding from the frame 1. Therefore, the power supply body 31 can be assembled in the channel 111 through the gripping portion 32, and the power supply body 31 can also be taken out of the channel 111 through the gripping portion 32, so that the power supply body 31 can be easily assembled or removed from the frame 1, and the hot plugging of the power supply body 31 can be realized. When the power supply body 31 needs to be repaired or replaced, it is not necessary to disassemble the frame 1 and the power amplifier body 2. It is only necessary to take the power supply body 31 out of the channel 111 through the gripping portion 32, and then assemble the repaired power supply body 31 or the new power supply body 31 into the channel 111 through the gripping portion 32, so that the channel 111 can be used as the channel 111 of the power supply body 31. The whole process is convenient and simple, which greatly improves the maintainability of the product.

[0031] In addition, since the first heat sink 42 is directly mounted on the heating surface of the power source body 31, the first heat sink 42 can directly take away the heat of the power source body 31. In addition, the power source body 31 and the first heat sink 42 are arranged in the channel 111, and the first air inlet and the first air outlet 51 are respectively arranged at both ends of the channel 111, wherein the first fan 41 is arranged at the first air outlet 51, so that the first fan 41 can drive the air flow from the first air inlet into the receiving space 11, and the first fan 41 drives the air flow to flow toward the channel 111, so that the air flow can take away the heat of the first heat sink 42, and finally the heat is taken out of the frame 1 through the first air outlet 51, so that the channel 111 can form an air duct. Since the channel 111 extends along the first direction, that is, the air flow mainly flows along the first direction, the flow path of the air flow can be shortened, and the heat of the first heat sink 42 can be taken out of the frame 1 faster and better, so as to achieve a better heat dissipation effect. The channel 111 is defined and formed in the receiving space 11, and can play a role in guiding air flow. The power supply body 31 and the first heat dissipation block 42 are both arranged in the channel 111. While ensuring the heat dissipation effect, the space can be well planned to make the structure compact and reduce the occupied volume.

[0032] Therefore, in the embodiment of the utility model, by setting the channel 111, the hot plugging of the power supply body 31 can be realized, and at the same time, the channel 111 plays an airflow guiding role to achieve the heat dissipation effect of the power supply body 31, so that the channel 111 has a multifunctional function and a compact structure, which can greatly reduce the volume of the product.

[0033] It can be understood that the power amplifier body 2 specifically includes RF microwave power transistors, input and output matching circuits, DC feed, bias circuit and control circuit, etc. The solid-state power amplifier of the embodiment of the utility model is the same as conventional microwave and RF solid-state power amplifiers in realizing basic functions, and can be considered as a component for reproducing signals with greater power, greater current and greater voltage, and can be considered as a circuit for converting self-flowing input into RF and microwave energy.

[0034] It should be noted that the frame 1 may be mainly in the shape of a square, and the first direction may be the length direction or the width direction of the frame 1. For example, Figure 1 The direction parallel to the X-axis is the first direction.

[0035] Furthermore, in some embodiments, the solid-state power amplifier also includes a first shell and a second shell assembled in the receiving space 11, and the first shell and the second shell are connected and enclosed to form a channel 111. Among them, the first shell and the second shell can be integrally molded, or can be connected by a detachable method such as screw connection, snap connection, etc. In addition, the first shell and / or the second shell can be connected to the frame 1 by a detachable method such as screw connection, snap connection, etc. Therefore, the channel 111 can be defined in the receiving space 11 by the first shell and the second shell, which has a guiding effect on the air flow. The air flow can circulate in the channel 111 and quickly take away the heat, so that the overall space can be planned, making the structure compact and reducing the occupied volume; in addition, the channel 111 can also be used to realize the hot plugging of the power supply body 31.

[0036] In some specific embodiments, the first shell is formed with a first U-shaped groove 1111 , and the second shell is formed with a second U-shaped groove 1112 . The first U-shaped groove 1111 and the second U-shaped groove 1112 are arranged opposite to each other to form a channel 111 . Among them, exemplarily, taking the axial direction of the frame 1 as the up and down direction, the opening of the first U-shaped groove 1111 can be toward the top or bottom of the receiving space 11, and the opening of the second U-shaped groove 1112 can be toward the bottom or top of the receiving space 11, and the space of the first U-shaped groove 1111 and the space of the second U-shaped groove 1112 are combined to form a channel 111, and the power supply body 31 is located in the channel 111, that is, the power supply body 31 is located between the first U-shaped groove 1111 and the second U-shaped groove 1112. When the power supply component 3 and the frame 1 are disassembled and separated, under the push-pull force, the bottom of the power supply body 31 can slide along the first U-shaped groove 1111 or the second U-shaped groove 1112, that is, the first U-shaped groove 1111 and the second U-shaped groove 1112 can guide the plugging and unplugging of the power supply body 31 to realize hot plugging of the power supply body 31. In addition, the first U-shaped groove 1111 and the second U-shaped groove 1112 can define an air duct and guide the air flow to reduce the heat of the power supply body 31 .

[0037] It should be understood that the present invention does not specifically limit the composition structure of the channel 111. In some embodiments, the first shell can be a U-shaped groove, and the second shell can be a cover plate, and the cover plate covers the U-shaped groove to form the channel 111. In some embodiments, the first shell can be an L-shaped groove, and the second shell can be an L-shaped groove, and the two L-shaped grooves are arranged opposite to each other to form the channel 111. In some embodiments, the first shell or the second shell can be a part of the frame 1, that is, the first shell or the second shell is integrally formed with the frame 1.

[0038] Furthermore, in some embodiments, the first heat sink 42 includes a plurality of first heat sinks, the power supply body 31 includes a first side shell, the heat generating surface of the power supply body 31 is formed on the first side shell, the plurality of first heat sinks are arranged at equal intervals on the first side shell, and the plate surfaces of the plurality of first heat sinks are parallel to the axial direction of the first fan 41.

[0039] Specifically, the first heat sink 42 can be connected to the power supply body 31 by means of screw connection. Exemplarily, the axial direction of the frame 1 is taken as the up-down direction, and the first direction is taken as the front-back direction. Therefore, the first side shell of the power supply body 31 can be a left shell, a right shell, or a top shell. The first heat sink extends in the first direction and is arranged orthogonally to the first side shell, and a plurality of first heat sinks are arranged at intervals. The first fan 41 drives the air flow to flow through the first heat sink 42. Under the blocking effect of the plurality of first heat sinks, the air flow flows through the gaps between the plurality of first heat sinks and contacts the first heat sink, so that the heat on the first heat sink is quickly dissipated, thereby realizing rapid heat dissipation of the power supply body 31.

[0040] Further, in some specific embodiments, the first heat sink includes a first arc-shaped portion 421 and a second arc-shaped portion 422 close to both ends of the power supply body 31; wherein the first arc-shaped portion 421 is close to the first air outlet 51, and, along the first direction, from the first air outlet 51 to the first air inlet, the first arc-shaped portion 421 gradually expands; the second arc-shaped portion 422 is close to the first air inlet, and, along the first direction, from the first air outlet 51 to the first air inlet, the second arc-shaped portion 422 gradually shrinks.

[0041] Specifically, the first heat sink is disposed on the power source body 31, and the two ends of the first heat sink are respectively close to the two ends of the power source body 31. The two ends of the first heat sink are respectively the first arc portion 421 and the second arc portion 422. Among them, the second arc portion 422 is close to the first air inlet, and the closer to the first air inlet, the smaller the projection surface area of ​​the first arc portion 421 along the first direction, so that the channel 111 can have a larger air inlet space near the first air inlet, so that more air flow can flow through the channel 111 continuously under the drive of the first fan 41. The first arc portion 421 is close to the first air outlet 51, and the closer to the first air outlet 51, the smaller the projection surface area of ​​the first arc portion 421 along the first direction, so that the channel 111 can have a larger air outlet space near the first air outlet 51, so that more heat can flow out of the channel 111 more quickly and finally out of the frame 1. Such a configuration can further improve the heat dissipation efficiency and heat dissipation effect while ensuring the reduction of occupied space.

[0042] In addition, before the power supply body 31 is inserted into the channel 111, the power supply body 31 and the first heat dissipation block 42 are assembled first, and then the power supply body 31 and the first heat dissipation block 42 are inserted into the channel 111 as a whole. Therefore, by setting the first arc portion 421, the power supply body 31 can be easily inserted into the channel 111, reducing the difficulty of assembly.

[0043] Furthermore, in some specific embodiments, the heat dissipation module 4 also includes a second heat dissipation block 43, the second heat dissipation block 43 includes a plurality of second heat sinks, the power supply body 31 includes a second side shell arranged opposite to the first side shell, the heating surface of the power supply body 31 is also formed on the second side shell, and the plurality of heat sinks are arranged at equal intervals on the second side shell, and the plate surfaces of the plurality of second heat sinks are parallel to the axial direction of the first fan 41.

[0044] Specifically, the axial direction of the frame 1 is taken as the up-down direction, and the first direction is taken as the front-back direction. Therefore, heat sinks can be provided on both the left and right side shells of the power source body 31. The left side shell can be provided with the first heat sink 42 or the second heat sink 43, and the right side shell can be provided with the second heat sink 43 or the first heat sink 42. No specific limitation is made. By directly installing the first heat sink 42 and the second heat sink 43 on the two heating surfaces of the power source body 31, the heat generated by the power source body 31 can be taken away to the outside of the frame 1 more quickly. The first heat sink 42 and the second heat sink 43 are relatively arranged on both sides of the power source body 31 and are both located in the channel 111. Therefore, while further improving the heat dissipation effect, it will not generate excessive occupied space.

[0045] Furthermore, in some specific embodiments, the first heat dissipation block 42 and the second heat dissipation block 43 are symmetrically arranged, that is, the first arc portion 421 and the second arc portion 422 may also be arranged at both ends of the second heat dissipation block 43, thereby further improving the heat dissipation efficiency and heat dissipation effect while ensuring that the occupied space is reduced.

[0046] Further, in some embodiments, the frame 1 includes a first subframe and a second subframe that are arranged opposite to each other and orthogonal to the first direction, the first air outlet 51 is opened in the first subframe, the first air inlet is opened in the second subframe, and the first air outlet 51 is covered with a first protective net 53, and the first air inlet is covered with a second protective net 54. By providing the first protective net 53 and the second protective net 54, dust, debris, etc. can be effectively prevented from being blown into the receiving space 11 through the first air outlet 51 and the first air inlet, and the devices in the receiving space 11 can be ensured not to be affected.

[0047] Furthermore, the first protection net 53 includes a plurality of hexagonal hole structures, which are stacked in sequence to form a honeycomb shape; and / or, the second protection net 54 includes a plurality of hexagonal hole structures, which are stacked in sequence to form a honeycomb shape.

[0048] In some specific embodiments, the first protection net 53 and the second protection net 54 are both honeycomb-shaped, so as to improve the structural strength of the first protection net 53 and the second protection net 54 while ensuring smooth air flow.

[0049] It should be noted that the present invention does not limit the specific structure of the first protective net 53 and the second protective net 54. For example, the first protective net 53 may include a plurality of circular holes arranged in an array; the second protective net 54 may include a plurality of square holes arranged in an array.

[0050] Furthermore, in some embodiments, the first air inlet is further provided with a protective cover 55, which covers the side of the second protection net 54 away from the first air inlet. By providing the protective cover 55 at the position of the first air inlet, the protection effect of the components in the receiving space 11 can be further improved, and excessive dust can be prevented from falling on the second protection net 54, thereby increasing the service life of the second protection net 54 and reducing the number of times the second protection net 54 is replaced.

[0051] Furthermore, in some specific embodiments, the protective cover 55 includes a base connected to the frame 1, and a plurality of baffles spaced apart on the base. The baffles can play a blocking role, preventing dust from falling into the second protective net 54 and the receiving space 11, and preventing external bases from damaging the product. In addition, the baffles are spaced apart, so that air can flow between the baffles without affecting the flow of air.

[0052] Furthermore, in some embodiments, the accommodating space 11 also includes a subspace 112 adjacent to the channel 111, and the amplifier body 2 is assembled in the subspace 112; the heat dissipation module 4 also includes a third heat dissipation block 44 and a second fan 45, the heat dissipation window 5 also includes a second air inlet and a second air outlet arranged relatively to each other, and the first air outlet 51 and the second air outlet 52 are located on the same side of the frame 1, and the first air inlet and the second air inlet are located on the same side of the frame 1; the third heat dissipation block 44 is arranged in the heating area of ​​the amplifier body 2, the second fan 45 is opposite to the second air outlet 52 and the central axis of the second fan 45 is parallel to the channel 111.

[0053] Specifically, a third heat sink 44 is directly installed in the heating area of ​​the amplifier body 2, so that the third heat sink 44 can directly take away the heat of the amplifier body 2. In addition, a first air outlet 51 and a second air outlet 52 are provided on the first subframe at the same time, and a first air inlet and a second air inlet are provided on the second subframe. Among them, the second fan 45 can drive the air flow from the second air inlet into the receiving space 11, and at the same time can drive the air flow to the subspace 112, so that the air flow can take away the heat of the third heat sink 44, and finally the heat is taken out to the frame 1 through the second air outlet 52. The amplifier body 2 is all concentrated in the subspace 112. Therefore, while ensuring the heat dissipation effect, the space is well planned to make the structure compact and reduce the occupied volume. In addition, the first air outlet 51 is opposite to the channel 111 and the first fan 41, and the second air outlet 52 is aligned with the subspace 112 and the second fan 45. Therefore, the airflow direction in the channel 111 and the airflow direction in the subspace 112 are in the same direction, which can improve the air utilization rate and achieve a better overall heat dissipation effect.

[0054] It should be noted that since the second sub-frame is orthogonal to the first direction, and the channel 111 extends along the first direction, the channel 111 is also used to realize the plugging and unplugging of the power supply component 3. Therefore, in the embodiment of the utility model, the first air inlet can only be offset to the channel 111, and the second air inlet can be aligned with the subspace 112 or offset to the subspace 112. In some embodiments, the first air inlet and the second air inlet can also be the same air inlet. In this way, driven by the first fan 41 and the second fan 45. The air flow enters the receiving space 11 from the air inlet, and part of the air flow enters the channel 111. The first heat sink 42 is cooled by the guiding effect of the channel 111; part of the air flow flows to the subspace 112 to cool the second heat sink 43.

[0055] In addition, in some embodiments, the second air outlet 52 and the second air inlet may be provided with a protective net, and the second air inlet may be further provided with a protective cover 55, which can play a role in preventing dust and dirt and protecting the devices in the receiving space 11 from damage.

[0056] Furthermore, in some embodiments, the amplifier body 2 includes a heating area, the third heat sink 44 includes a plurality of third heat sinks, the plurality of third heat sinks are evenly spaced and distributed in the heating area, and the plate surfaces of the plurality of third heat sinks are parallel to the axial direction of the second fan 45 .

[0057] Specifically, the third heat sink 44 can be connected to the amplifier body 2 by screw connection. Exemplarily, with the axial direction of the frame 1 as the up-down direction and the first direction as the front-back direction, the third heat sink can be arranged at the top or bottom of the amplifier body 2, and a plurality of third heat sinks are arranged at intervals. The second fan 45 drives the air flow to flow through the third heat sink 44. Under the blocking effect of the plurality of third heat sinks, the air flow flows through the gaps between the plurality of third heat sinks and contacts the third heat sink, so that the heat on the third heat sink is quickly dissipated, thereby realizing the rapid heat dissipation of the amplifier body 2.

[0058] Furthermore, in some embodiments, the power supply assembly 3 also includes a connection portion connected to the grip portion 32, at least part of the connection portion is exposed outside the frame 1, and the connection portion is detachably connected to the frame 1. Specifically, the connection portion and the frame 1 are detachably connected, so that the power supply assembly 3 and the frame 1 can be detachably connected. After the power supply body 31 is assembled into the channel 111, the connection portion and the frame 1 can be assembled and connected, so that the power supply assembly 3 and the frame 1 are connected, and the device can be used; when the power supply body 31 needs to be replaced or repaired, the connection portion and the frame 1 can be disassembled and separated first, and then the power supply body 31 can be taken out from the channel 111.

[0059] Furthermore, in some embodiments, the connecting portion includes a connecting plate 33, the frame 1 is provided with a through hole facing the channel 111, the connecting plate 33 covers the through hole and is detachably connected to the frame 1, and at least part of the gripping portion 32 protrudes from a side of the connecting plate 33 away from the through hole.

[0060] Specifically, a channel 111 is defined in the receiving space 11, and a through hole can be provided at a position of the frame 1 corresponding to the channel 111 along the first direction. In this way, the power source body 31 can be pulled out or pushed into the channel 111 through the through hole. The connecting portion can be a connecting plate 33, and a gripping portion 32 protrudes from the side of the connecting plate 33 away from the through hole, and the gripping portion 32 protrudes from the outside of the frame 1, so that the connecting plate 33 is also arranged on the outside of the frame 1, and the connecting plate 33 and the frame 1 are detachably connected. Therefore, after the power source body 31 is pushed into the channel 111 by the gripping portion 32, the connecting plate 33 and the frame 1 can be assembled and connected; when the power source body 31 needs to be replaced or repaired, the connecting plate 33 and the frame 1 can be disassembled and separated first, and then the power source body 31 can be pulled out of the channel 111 by the gripping portion 32, and the whole process is convenient and quick. In addition, the connecting plate 33 covers the through hole, so that the device can be relatively closed.

[0061] It should be noted that the present invention does not limit the specific shape of the connection portion. In some embodiments, the connection portion can also be a connection block or other structural member, and the connection portion is mainly used to achieve a detachable connection between the power supply assembly 3 and the frame 1, and to connect the grip portion 32.

[0062] Furthermore, in some embodiments, the solid-state power amplifier further comprises a plurality of captive screws 6, which are connected to the side of the connection plate 33 away from the through hole, and the connection plate 33 and the frame 1 are detachably connected by the captive screws 6. When the connection plate 33 and the frame 1 are disassembled and separated, the captive screws 6 are loosened and fixed to the connection plate 33 and will not fall off. Compared with the connection method using ordinary screws, the embodiment of the utility model adopts the captive screws 6 with fool-proof design for connection, which can also effectively avoid the problem of too many screws falling and losing during the disassembly process, thereby improving the user experience.

[0063] In some specific embodiments, the frame 1 is provided with an assembly groove opening outward, and a through hole is arranged at the bottom of the assembly groove so that the frame 1 forms a flange portion at the position of the through hole, and the cover plate is assembled in the assembly groove; the flange portion is provided with a plurality of threaded holes, and the captive screws 6 pass through the side of the connecting plate 33 away from the through hole and are threadedly connected to the threaded holes, and the captive screws 6 and the threaded holes correspond one to one.

[0064] Specifically, the flange portion is the bottom of the assembly groove with a through hole, and a threaded hole is opened at the bottom of the assembly groove. The captive screw 6 passes from one side of the connecting plate 33 away from the through hole to the other side and is threadedly connected with the threaded hole, thereby realizing a detachable connection between the connecting plate 33 and the frame 1.

[0065] Furthermore, in some embodiments, the power supply assembly 3 also includes a fixing member 34, the holding portion 32 protrudes from the power supply body 31, and an end of the holding portion 32 away from the power supply body 31 protrudes from a side of the connecting plate 33 away from the through hole, and the holding portion 32 and the connecting plate 33 are fixedly connected by the fixing member 34.

[0066] Specifically, the gripping portion 32 protrudes from one end of the power source body 31 close to the through hole and extends through the connecting plate 33 to the side of the connecting plate 33 away from the through hole, so that the gripping portion 32 can be formed outside the frame 1 for the user to hold. The fixing member 34 is connected between the gripping portion 32 and the connecting plate 33, so that the gripping portion 32 and the connecting plate 33 can be fixedly connected, thereby realizing the connection between the gripping portion 32, the connecting plate 33, and the power source body 31.

[0067] In some specific embodiments, the holding portion 32 includes a U-shaped body, and the two ends of the U-shaped body are respectively an open end and a closed end. The open end is detachably connected to the power supply body 31, and the closed end is passed through the connecting plate 33 and partially protrudes from the side of the connecting plate 33 away from the through hole. The fixing member 34 is fixedly connected to the side of the connecting plate 33 facing the through hole and is detachably connected to the U-shaped body.

[0068] Specifically, in the U-shaped body, one end of the two straight lines is an open end for connecting the power source body 31; the other end of the semicircular shape is a closed end for protruding from the side of the connecting plate 33 away from the through hole, that is, protruding outside the frame 1 for the user to hold. On the side of the connecting plate 33 facing the through hole, the fixing member 34 is fixedly connected to the connecting plate 33 and detachably connected to the U-shaped body, so that the U-shaped body and the connecting plate 33 can be connected and prevented from being separated from the connecting plate 33.

[0069] Further, in some specific embodiments, the fixing member 34 may include a first subdivision parallel to the open end of the U-shaped body and a second subdivision parallel to the connecting plate 33, that is, the first subdivision and the second subdivision are orthogonal, wherein the first subdivision may protrude from the connecting plate 33, so that the fixing member 34 and the connecting plate 33 are integrally formed; or the first subdivision may be embedded in the mounting groove of the connecting plate 33 to achieve the connection between the fixing member 34 and the connecting plate 33; and the second subdivision may be connected to the open end of the U-shaped body by a detachable connection method such as a screw connection or a snap connection. In addition, the connecting plate 33 is provided with two clearance through holes, so that the open end (i.e., two straight lines) of the U-shaped body is connected to the power source body 31 through the clearance through holes from the side of the connecting plate 33 away from the through hole, and the closed end (i.e., semicircular) of the U-shaped body protrudes from the side of the connecting plate 33 away from the through hole. In addition, the end of the power source body 31 close to the through hole may be provided with a first connection structure to achieve a detachable connection with the second connection structure at the open end of the U-shaped body. Exemplarily, the first connection structure may be a raised column, and the second connection structure may be a groove, in which the raised column is embedded, thereby realizing the connection between the U-shaped body and the power source body 31. The specific assembly process may be: the open end (i.e., two straight lines) of the U-shaped body is connected to the power source body 31 through the yielding through hole from the side of the connecting plate 33 away from the through hole, so that the groove at the open end of the U-shaped body is connected to the raised column of the power source body 31; at the same time, the first part of the fixing member 34 is connected to the connecting plate 33 (this step can be omitted if it is integrally formed); and then the second part of the fixing member 34 is detachably connected to the U-shaped body. The connection between the power source body 31, the gripping portion 32, and the connecting plate 33 can be realized.

[0070] It is understandable that the grip portion 32 may not necessarily be a U-shaped body. In other embodiments, the grip portion 32 may include two columns orthogonal to the connecting plate 33, one end of the column is connected to the power source body 31 and the other end protrudes outside the connecting plate 33 and is provided with a sphere for gripping. Similarly, the connection between the power source body 31, the grip portion 32 and the connecting plate 33 may be achieved through a fixing member 34.

[0071] Furthermore, in some embodiments, the power supply assembly 3 also includes a first electrical connection terminal 35, which is arranged at an end of the power supply assembly 3 away from the holding portion 32; a second electrical connection terminal 7 is arranged on the channel 111, and when the power supply assembly 3 is in the first position of the channel 111, the first electrical connection terminal 35 is electrically connected to the second electrical connection terminal 7.

[0072] Specifically, the first electrical connection end 35 may be a plug, and the second connection end may be a socket. At the end of the power supply body 31 away from the gripping portion 32, if the end of the power supply body 31 connected to the gripping portion 32 is the first end, a plug may be provided at the end of the power supply body 31; and a power board may be provided in the channel 111, the power board is orthogonal to the first direction, and a socket may be provided on the side of the power board facing the through hole. Therefore, when the power supply body 31 is inserted into the channel 111, and the power supply body 31 and the channel 111 are installed in place (that is, the power supply assembly 3 is in the first position of the channel 111), the plug on the power supply body 31 can be correctly connected to the socket on the power board. In addition, when the power supply body 31 is inserted into the channel 111, it is directional. Therefore, by providing a plug in the power supply body 31, the plugging direction of the power supply body 31 can also be indicated to prevent incorrect assembly.

[0073] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0074] The above is a description of the technical solution provided by the utility model. For technicians in this field, according to the ideas of the embodiments of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A solid-state power amplifier, characterized in that: include: A frame body, wherein a receiving space is formed inside, wherein the receiving space has a passage extending along a first direction, and the frame body is provided with a heat dissipation window connecting the receiving space and the outside; the heat dissipation window comprises a first air inlet and a first air outlet, wherein the first air inlet is located at one end of the passage, and the first air outlet is located at one end of the passage and directly opposite to the passage; A power amplifier body is assembled in the receiving space; A power supply assembly, detachably connected to the frame and movably connected to the channel, the power supply assembly comprising a power supply body parallel to the first direction, and a gripping portion connected to the power supply body and protruding outside the frame; A heat dissipation module is accommodated in the accommodation space; the heat dissipation module includes a first fan and a first heat dissipation block, the first heat dissipation block is connected to the power supply body and is arranged on the heating surface of the power supply body, the first fan is directly opposite to the first air outlet, and the central axis of the first fan is parallel to the channel, and the first fan is also used to dissipate the heat generated by the power amplifier body to the outside of the frame through the heat dissipation window.

2. The solid-state power amplifier according to claim 1, characterized in that: The solid-state power amplifier further includes a first shell and a second shell assembled in the receiving space, wherein the first shell and the second shell are connected and enclosed to form the channel.

3. The solid-state power amplifier according to claim 1, characterized in that: The first heat sink includes a plurality of first heat sinks, the power supply body includes a first side shell, the heat generating surface of the power supply body is formed on the first side shell, the plurality of first heat sinks are arranged at equal intervals on the first side shell, and the plate surfaces of the plurality of first heat sinks are parallel to the axial direction of the first fan.

4. The solid-state power amplifier according to claim 3, characterized in that: The first heat sink includes a first arc-shaped portion and a second arc-shaped portion close to both ends of the power supply body; wherein the first arc-shaped portion is close to the first air outlet, and along the first direction, from the first air outlet to the first air inlet, the first arc-shaped portion gradually expands; the second arc-shaped portion is close to the first air inlet, and along the first direction, from the first air outlet to the first air inlet, the second arc-shaped portion gradually shrinks.

5. The solid-state power amplifier according to claim 1, characterized in that: The frame body includes a first sub-frame and a second sub-frame which are arranged opposite to each other and orthogonal to the first direction, the first air outlet is opened in the first sub-frame, the first air inlet is opened in the second sub-frame, and the first air outlet is covered with a first protective net, and the first air inlet is covered with a second protective net.

6. The solid-state power amplifier according to claim 1, characterized in that: The power supply assembly also includes a connecting portion connected to the gripping portion, at least a portion of the connecting portion is exposed outside the frame, and the connecting portion is detachably connected to the frame.

7. The solid-state power amplifier according to claim 6, characterized in that: The connecting portion comprises a connecting plate, the frame is provided with a through hole facing the channel, the connecting plate covers the through hole and is detachably connected to the frame, and at least part of the gripping portion protrudes from a side of the connecting plate away from the through hole.

8. The solid-state power amplifier according to claim 7, characterized in that: The solid-state power amplifier further comprises a plurality of captive screws, wherein the captive screws are connected to a side of the connection plate away from the through hole, and the connection plate and the frame are detachably connected via the captive screws.

9. The solid-state power amplifier according to claim 7, characterized in that: The power supply assembly also includes a fixing member, the holding portion protrudes from the power supply body, and one end of the holding portion away from the power supply body protrudes from a side of the connecting plate away from the through hole, and the holding portion and the connecting plate are fixedly connected by the fixing member.

10. The solid-state power amplifier according to claim 9, characterized in that: The holding portion includes a U-shaped body, and the two ends of the U-shaped body are respectively an open end and a closed end, the open end is detachably connected to the power source body, the closed end is penetrated through the connecting plate and partially protrudes from a side of the connecting plate away from the through hole, and the fixing piece is fixedly connected to a side of the connecting plate facing the through hole and is detachably connected to the U-shaped body.

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