Vacuum tube power amplifier comprising heat dissipation structure
By setting heat dissipation holes at the bottom of the vacuum tube power amplifier body and around the vacuum tube to form a convection channel, the problem of inadequate heat dissipation of vacuum tubes in the prior art is solved, and a vacuum tube power amplifier with a compact structure and good heat dissipation effect is realized.
Patent Information
- Application Number
- CN202421580669.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The heat dissipation structure of existing vacuum tube power amplifiers is complex and not beautiful, which makes some vacuum tubes unable to fully dissipate heat.
A plurality of first heat dissipation holes are set at the bottom of the power amplifier body, a plurality of second heat dissipation holes are set around the vacuum tube, and these heat dissipation holes are set at the upper end surface of the power amplifier body to form a convection channel, thereby achieving fan-free heat dissipation.
The sufficient heat dissipation of multiple vacuum tubes is achieved, avoiding the inadequate heat dissipation of vacuum tubes, and the compact structure does not affect the aesthetics.
Smart Images
Figure CN222839977U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum tube power amplifiers, in particular to a vacuum tube power amplifier comprising a heat dissipation structure. Background Art
[0002] Vacuum tube power amplifiers are a type of audio product that uses vacuum tubes to amplify audio signals, and then outputs them to speakers to produce sound after transformer coupling and impedance matching. Vacuum tube audio power amplifiers are widely loved by music enthusiasts for their good sound quality and ability to restore the music scene in its original form. Therefore, vacuum tube audio power amplifiers are generally positioned at the high end, and the performance requirements for the electronic components used are much higher than those of ordinary audio equipment.
[0003] At present, the temperature of multiple vacuum tubes carried on a vacuum tube power amplifier will exceed 250 degrees when working, so that the heat dissipation problem of the vacuum tube needs to be considered when manufacturing the vacuum tube power amplifier; in a patent with a publication number of CN214756268U, a power amplifier with a circuit matching structure is disclosed, by connecting a heat sink to both sides of the power amplifier body and carrying a blowing fan in the heat sink, and arranging a heat conducting plate for conducting the heat of the power amplifier body between the power amplifier body and the heat sink, so that the two blowing fans located on both sides of the power amplifier can dissipate the heat from the heat conducting plate, thereby realizing the cooling of the inside of the power amplifier body and increasing the life of the power amplifier body. However, the heat dissipation structure of the patent needs to be carried inside and outside the power amplifier body, resulting in a complex and unsightly overall structure, and the vacuum tubes close to the heat conducting plate and the blowing fan can be fully cooled, while the vacuum tubes located in the middle of the power amplifier may not be fully cooled due to being far away from the heat conducting plate and the blowing fan. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a vacuum tube power amplifier with a compact structure and good heat dissipation effect, including a heat dissipation structure.
[0005] The technical solution adopted by the utility model is as follows: the utility model comprises a power amplifier body and a plurality of vacuum tube units, a plurality of first heat dissipation holes are opened at the bottom of the power amplifier body, each of the vacuum tube units comprises a mounting hole, a vacuum tube and a plurality of second heat dissipation holes, the mounting hole is opened on the upper end surface of the power amplifier body, the lower end of the vacuum tube extends from top to bottom into the mounting hole and is installed in the power amplifier body, a heat dissipation spacing is provided between the outer side of the vacuum tube and the mounting hole, a plurality of the second heat dissipation holes are opened on the upper end surface of the power amplifier body and are arranged around the outer side of the vacuum tube, and a plurality of vacuum tube units are located above the first heat dissipation holes.
[0006] Furthermore, a plurality of third heat dissipation holes are formed on the power amplifier body, and the plurality of third heat dissipation holes are close to the vacuum tube.
[0007] Furthermore, the plurality of the second heat dissipation holes are all circular holes, and the plurality of the third heat dissipation holes are all bar holes.
[0008] Furthermore, the first heat dissipation holes are all strip holes and are arranged in an array at the bottom of the power amplifier body.
[0009] Furthermore, a plurality of supporting feet are provided at the bottom of the power amplifier body, and a heat dissipation space is provided between the supporting surfaces of the plurality of supporting feet and the plurality of first heat dissipation holes.
[0010] Furthermore, a buffer pad is provided at the bottom of the plurality of supporting legs.
[0011] Furthermore, the lower end of the vacuum tube is plugged into the power amplifier body.
[0012] Furthermore, a protective cover is clamped on the upper end of the power amplifier body, and the multiple vacuum tube units are located in the protective cover. The protective cover is provided with an observation port and multiple fourth heat dissipation holes, and the observation port is exposed on the front end surface and the upper end surface of the power amplifier body.
[0013] Furthermore, the protective cover has two inclined plates, and the two inclined plates are located at the front end surface of the observation port and are respectively located at both sides of the observation port.
[0014] Furthermore, a main volume button is arranged on the front end of the power amplifier body, a power switch is arranged on the side end of the power amplifier body, and a power interface and a plurality of connection terminals are arranged on the rear end of the power amplifier body.
[0015] The beneficial effects of the utility model are:
[0016] With respect to the deficiencies of the prior art, in the present invention, a plurality of first heat dissipation holes are provided at the bottom of the power amplifier body, a plurality of second heat dissipation holes are provided around the vacuum tube, and the plurality of second heat dissipation holes are all located above the plurality of first heat dissipation holes, so that convection is formed between the plurality of second heat dissipation holes and the plurality of first heat dissipation holes, so that the present invention dissipates heat for the plurality of vacuum tubes without the aid of a fan, so as to have the advantages of compact structure and no influence on the appearance; moreover, the present invention can fully dissipate heat for the plurality of vacuum tubes, and can avoid the situation that a certain vacuum tube has insufficient heat dissipation as much as possible; in addition, since there is a heat dissipation spacing between the outer side of the vacuum tube and the mounting hole, the convective air can well take away the heat from the outer side of the vacuum tube, so as to further improve the heat dissipation effect on the vacuum tube, so that the present invention has the advantages of compact structure and good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] 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 ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0018] Figure 1 This is a three-dimensional structure diagram of the utility model. Figure 1 ;
[0019] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;
[0020] Figure 3 This is a three-dimensional structure diagram of the utility model. Figure 2 ;
[0021] Figure 4 It is a schematic diagram of the plane structure of the utility model;
[0022] Figure 5 This is a three-dimensional structure diagram of the utility model. Figure 3 .
[0023] The reference numerals are as follows:
[0024] 1. Power amplifier body; 2. Vacuum tube unit; 3. First heat dissipation hole; 5. Mounting hole; 6. Vacuum tube; 7. Second heat dissipation hole; 8. Heat dissipation spacing; 9. Third heat dissipation hole; 10. Support foot; 11. Heat dissipation space; 12. Buffer pad; 13. Protective cover; 15. Observation port; 16. Fourth heat dissipation hole; 17. Tilt plate; 18. Master volume button; 19. Power switch; 20. Power interface; 21. Wiring terminal.
[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0026] 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 of 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.
[0027] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0028] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0029] like Figures 1 to 4 As shown, in this embodiment, the utility model includes a power amplifier body 1 and a plurality of vacuum tube units 2, a plurality of first heat dissipation holes 3 are opened at the bottom of the power amplifier body 1, each of the vacuum tube units 2 includes a mounting hole 5, a vacuum tube 6 and a plurality of second heat dissipation holes 7, the mounting hole 5 is opened on the upper end surface of the power amplifier body 1, the lower end of the vacuum tube 6 extends from top to bottom into the mounting hole 5 and is installed in the power amplifier body 1, a heat dissipation spacing 8 is provided between the outer side of the vacuum tube 6 and the mounting hole 5, a plurality of the second heat dissipation holes 7 are opened on the upper end surface of the power amplifier body 1 and are arranged around the outer side of the vacuum tube 6, and a plurality of vacuum tube units 2 are located above the first heat dissipation holes 3.
[0030] With respect to the deficiencies of the prior art, in the present invention, the vacuum tube 6 generates heat when working, and the hot air moves upward. Therefore, the present invention forms convection between the multiple second heat dissipation holes 7 and the multiple first heat dissipation holes 3 by providing multiple first heat dissipation holes 3 at the bottom of the power amplifier body 1, multiple second heat dissipation holes 7 around the vacuum tube 6, and multiple second heat dissipation holes 7 are all located above the multiple first heat dissipation holes 3, so that the present invention dissipates the multiple vacuum tubes 6 without the aid of a fan, so as to have the advantages of compact structure and no influence on the appearance; moreover, the present invention can fully dissipate the heat of the multiple vacuum tubes 6, and can avoid the situation that a certain vacuum tube 6 does not have adequate heat dissipation as much as possible; in addition, since there is a heat dissipation spacing 8 between the outer side of the vacuum tube 6 and the mounting hole 5, the convective air can well take away the heat of the outer side of the vacuum tube 6, further improving the heat dissipation effect of the vacuum tube 6, so that the present invention has the advantages of compact structure and good heat dissipation effect.
[0031] In some embodiments, the power amplifier body 1 is provided with a plurality of third heat dissipation holes 9, and the plurality of third heat dissipation holes 9 are close to the vacuum tube 6; the plurality of second heat dissipation holes 7 are all round holes, and the plurality of third heat dissipation holes 9 are all bar holes; the plurality of first heat dissipation holes 3 are all bar holes, and are arranged in an array at the bottom of the power amplifier body 1. Specifically, the plurality of third heat dissipation holes 9 close to the vacuum tube 6 further improve the heat dissipation effect; in addition, the first heat dissipation holes 3 are bar holes, the second heat dissipation holes 7 are round holes, and the third heat dissipation holes 9 are bar holes, so that the utility model not only has a good heat dissipation effect, but also does not destroy its aesthetics.
[0032] In some embodiments, a plurality of supporting feet 10 are provided at the bottom of the power amplifier body 1, and a heat dissipation space 11 is provided between the supporting surfaces of the plurality of supporting feet 10 and the plurality of first heat dissipation holes 3; and a buffer pad 12 is provided at the bottom of the plurality of supporting feet 10. Specifically, by providing the plurality of supporting feet 10, the bottom of the power amplifier body 1 has sufficient heat dissipation space 11 to ensure a good heat dissipation effect; in addition, by providing the supporting feet 10 and the buffer pad 12, the influence of external sound on the power amplifier body 1 can be avoided as much as possible.
[0033] In some embodiments, the lower end of the vacuum tube 6 is plugged into the power amplifier body 1. Specifically, by plugging the lower end of the vacuum tube 6 into the power amplifier body 1, the user can easily replace the vacuum tube 6.
[0034] like Figure 5As shown, in some embodiments, a protective cover 13 is clamped on the upper end of the power amplifier body 1, and the plurality of vacuum tube units 2 are all located in the protective cover 13. The protective cover 13 is provided with an observation port 15 and a plurality of fourth heat dissipation holes 16, and the observation port 15 is exposed on the front end face and the upper end face of the power amplifier body 1. Among them, the fourth heat dissipation hole 16 is a strip hole. Specifically, through the provision of the protective cover 13, the user can watch with confidence without worrying about accidentally triggering the heated vacuum tube 6, and can easily replace the vacuum tube 6 of different specifications after removing the protective cover 13; in addition, through the provision of the observation port 15 and the plurality of fourth heat dissipation holes 16 on the protective cover 13, the user can observe the internal situation through the observation port 15 to improve the ornamental value of the power amplifier, and when the power amplifier is in use, it can further dissipate heat through the plurality of fourth heat dissipation holes 16 to timely dissipate the heat generated by the vacuum tube 6.
[0035] like Figure 5 As shown, in some embodiments, the protective cover 13 has two inclined plates 17, and the two inclined plates 17 are located at the front end surface of the observation port 15 and are respectively located on both sides of the observation port 15. Specifically, by providing two inclined plates 17 at the front end surface of the observation port 15, the opening area of the observation port 15 can be reduced, and the two inclined plates 17 can better prevent the user from accidentally touching the vacuum tube 6 without affecting the viewing experience.
[0036] In some embodiments, the front end of the power amplifier body 1 is provided with a master volume button 18, the side end of the power amplifier body 1 is provided with a power switch 19, and the rear end of the power amplifier body 1 is provided with a power interface 20 and a plurality of wiring terminals 21. Among them, the wiring terminals 21 provide 3 groups of RCA high-level inputs and a group of Pre in inputs.
[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A vacuum tube power amplifier including a heat dissipation structure, characterized in that: The invention comprises a power amplifier body (1) and a plurality of vacuum tube units (2). The bottom of the power amplifier body (1) is provided with a plurality of first heat dissipation holes (3). Each of the vacuum tube units (2) comprises a mounting hole (5), a vacuum tube (6) and a plurality of second heat dissipation holes (7). The mounting hole (5) is provided on the upper end surface of the power amplifier body (1). The lower end of the vacuum tube (6) extends from top to bottom into the mounting hole (5) and is mounted in the power amplifier body (1). A heat dissipation spacing (8) is provided between the outer side of the vacuum tube (6) and the mounting hole (5). The plurality of second heat dissipation holes (7) are provided on the upper end surface of the power amplifier body (1) and are arranged around the outer side of the vacuum tube (6). The plurality of vacuum tube units (2) are all located above the first heat dissipation holes (3).
2. A vacuum tube power amplifier comprising a heat dissipation structure according to claim 1, characterized in that: The power amplifier body (1) is provided with a plurality of third heat dissipation holes (9), and the plurality of third heat dissipation holes (9) are close to the vacuum tube (6).
3. A vacuum tube power amplifier comprising a heat dissipation structure according to claim 2, characterized in that: The plurality of second heat dissipation holes (7) are all circular holes, and the plurality of third heat dissipation holes (9) are all strip holes.
4. A vacuum tube power amplifier comprising a heat dissipation structure according to claim 1, characterized in that: The plurality of first heat dissipation holes (3) are all strip-shaped holes and are arranged in an array at the bottom of the power amplifier body (1).
5. A vacuum tube power amplifier comprising a heat dissipation structure according to any one of claims 1 to 4, characterized in that: A plurality of supporting feet (10) are arranged at the bottom of the power amplifier body (1), and a heat dissipation space (11) is provided between the supporting surfaces of the plurality of supporting feet (10) and the plurality of first heat dissipation holes (3).
6. A vacuum tube power amplifier comprising a heat dissipation structure according to claim 5, characterized in that: Buffer pads (12) are provided at the bottoms of the plurality of support legs (10).
7. The vacuum tube power amplifier with a heat dissipation structure according to claim 1, characterized in that: The lower end of the vacuum tube (6) is plugged into the power amplifier body (1).
8. A vacuum tube power amplifier with a heat dissipation structure according to claim 1 or 7, characterized in that: A protective cover (13) is clamped on the upper end of the power amplifier body (1), and the plurality of vacuum tube units (2) are located in the protective cover (13). The protective cover (13) is provided with an observation port (15) and a plurality of fourth heat dissipation holes (16), and the observation port (15) is exposed at the front end face and the upper end face of the power amplifier body (1).
9. A vacuum tube power amplifier comprising a heat dissipation structure according to claim 8, characterized in that: The protective cover (13) has two inclined plates (17), and the two inclined plates (17) are located at the front end surface of the observation port (15) and are respectively located on both sides of the observation port (15).
10. The vacuum tube power amplifier with a heat dissipation structure according to claim 1, characterized in that: The front end of the power amplifier body (1) is provided with a master volume button (18), the side end of the power amplifier body (1) is provided with a power switch (19), and the rear end of the power amplifier body (1) is provided with a power interface (20) and a plurality of connection terminals (21).