A kind of anti-blocking hole heat dissipation type speaker

Abstract

The present invention relates to the technical field of loudspeakers, and in particular to an anti-blocking heat dissipation type loudspeaker, comprising a front panel, a top panel fixedly mounted on the upper end of the front panel, side panels fixedly mounted on both sides of the top panel at the rear end of the front panel, an amplifier cover fixedly mounted on the rear end of the top panel, two upper and lower position limiting mounting mechanisms fixedly mounted on the rear end of the front panel, an echo hole formed at the lower end of the front panel, a bass reflex tube fixedly mounted on the rear end of the echo hole, a cleaning mechanism fixedly mounted on the rear end of the bass reflex tube, a rotatable mounting and fixing mechanism for fixing the loudspeaker in position, a heat dissipation structure fitted with a T-iron at the rear end of the loudspeaker, which promptly dissipates the heat generated by the voice coil when the loudspeaker is working for a long time, and the distance between the heat dissipation mechanism and the rear end of the loudspeaker is controlled by rotating the distance adjustment mechanism, thereby ensuring that the heat sink can be in close contact with the T-iron, and avoiding excessive thermal resistance due to poor contact. By installing the fixing mechanism, the loudspeaker is more firmly installed inside the loudspeaker.

Description

Technical Field

[0001] The present invention relates to the technical field of sound box speakers, and in particular to an anti-blocking hole heat dissipation type sound box speaker. Background Art

[0002] A bass reflex speaker is also called a bass reflex open-hole speaker or a low-frequency radiating speaker. It refers to a speaker with a bass reflex hole on the speaker panel.

[0003] The bass reflex port allows air to circulate inside and outside the box, giving it higher power handling capacity and lower distortion than a sealed box. It has sufficient volume and high sensitivity, and its requirements for power amplifier output power are lower than traditional sealed speakers.

[0004] During the use of the speaker, the voice coil and the amplifier panel are the main heat-generating components. When the voice coil is energized, it generates electromagnetic force. When the current passes through, Joule heat is generated due to resistance. Especially when the power is high or the operation is long, the heat will accumulate significantly.

[0005] The existing equipment has the following deficiencies:

[0006] The long-term operation of the speaker will accumulate heat in the voice coil part. The traditional speaker conducts heat through the T-iron at the rear end. The heat dissipation area is small and long-term use can easily cause damage to the insulation layer of the voice coil frame, resulting in a short circuit or open circuit, causing complete damage to the speaker.

[0007] Speaker amplifier panels mostly rely on passive heat dissipation, which can lead to uneven heat distribution and local high temperatures, causing component performance degradation and even false triggering of protection circuits. Poor heat dissipation can cause the temperature of the amplifier chip to rise, affecting working stability and causing audio signal distortion.

[0008] The bass reflex tube of the speaker connects the air inside and outside. Long-term use will cause a lot of dust to adhere to the inner wall of the bass reflex tube, causing the airflow mechanical characteristics of the inner wall of the bass reflex tube to change, resulting in the tuning frequency of the bass reflex tube shifting, insufficient low-frequency dive or abnormal resonance peak. When it is severely blocked, the bass reflex tube may degenerate into a nearly closed box, and the sound will be muffled and loose. Summary of the Invention

[0009] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an anti-hole blocking heat dissipation type speaker.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an anti-blocking hole heat dissipation type speaker, comprising a front panel, a top panel is fixedly mounted on the upper end of the front panel, side panels are fixedly mounted on both sides of the top panel at the rear end of the front panel, an amplifier cover is fixedly mounted on the rear end of the top panel, two upper and lower position limiting mounting mechanisms are fixedly mounted on the rear end of the front panel, an echo hole is opened at the lower end of the front panel, a bass reflex tube is fixedly mounted on the rear end of the echo hole, a cleaning mechanism is fixedly mounted on the rear end of the bass reflex tube, and a heat dissipation rear cover is fixedly mounted on the rear surface of the amplifier cover;

[0011] The position limiting mounting mechanism includes a mounting bracket fixedly mounted on the rear surface of the front panel, a rotating bracket is rotatably mounted on the rear end of the mounting bracket, a basin rack is provided between the rotating bracket and the mounting bracket, a round rod is rotatably mounted on the lower rear end of the rotating bracket, and a lifting mechanism is installed through the round rod.

[0012] Preferably, sound-absorbing cotton is fixedly installed on the inner surfaces of the two side panels, an H-shaped reinforcement is fixedly installed on the upper end between the front panel and the power amplifier cover, and an inclined plate is fixedly installed on the lower end between the front panel and the power amplifier cover.

[0013] Preferably, a digital audio interface is fixedly installed on the rear surface of the power amplifier cover at the upper end of the heat dissipation rear cover, and a transmission interface is fixedly installed on the rear surface of the power amplifier cover at the left side of the heat dissipation rear cover. The digital audio interface and the transmission interface are both connected through the power amplifier cover and the basin frame.

[0014] Preferably, the limit mounting mechanism includes a rotating seat fixedly mounted on the lower end of the rear surface of the mounting bracket, a symmetrical connecting pipe is fixedly mounted on the upper end of the rear surface of the mounting bracket, a limit ring is fixedly mounted between the two mounting brackets, and a docking hole corresponding to the connecting pipe is fixedly mounted on the upper end of the surface of the rotating bracket close to the mounting bracket, and a fixing screw is rotatably mounted on the rear end of each docking hole, a mounting cross plate is fixedly mounted on the rear end of the rotating bracket, and a heat dissipation mechanism is fixedly mounted on the rear end of the mounting cross plate.

[0015] Preferably, the heat dissipation mechanism includes a distance adjusting platform fixedly installed on the middle end of the rear surface of the mounting horizontal plate, a distance adjusting rod is installed through the outside of the distance adjusting platform, and the distance adjusting rod is penetrated by the mounting horizontal plate and rotatably installed with a disc, and a heat sink is fixedly installed at the lower end of the disc.

[0016] Preferably, the lifting mechanism includes a socket fixedly installed in the middle section of the round rod, the socket is rotatably installed with a distance-adjusting rotating rod, a lower connecting seat is rotatably installed on one side of the distance-adjusting rotating rod, and a limiting seat is fixedly installed on the upper end of the lower connecting seat.

[0017] Preferably, the cleaning mechanism includes a cleaning outer ring rotatably mounted on the rear end of the inverter tube, an operating box is fixedly mounted on the outside of the cleaning outer ring, a rotating motor is fixedly mounted on the outside of the upper end of the operating box, a rotating rod is fixedly mounted on the output end of the rotating motor, a moving block is installed through the rotating rod, a guide plate is fixedly mounted on the lower end of the outer side of the cleaning outer ring, and a filter is fixedly mounted on the inner side of the cleaning outer ring.

[0018] Preferably, the lower end of the movable block is fixedly mounted with supporting arms on both sides of the filter screen, and the upper and lower ends of each supporting arm are rotatably mounted with a number of equidistantly arranged cleaning rollers, and a through groove is provided at the same position of the cleaning outer ring and the upper end of the operating box.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention adopts a rotatable mounting and fixing mechanism to fix the position of the speaker, and is provided with a heat dissipation structure that fits the T-iron at the rear end of the speaker to promptly diffuse the heat generated by the voice coil when the speaker is working for a long time. The distance between the heat dissipation mechanism and the rear end of the speaker is controlled by rotating the distance adjustment, thereby ensuring that the heat sink can be in close contact with the T-iron, avoiding excessive thermal resistance due to poor contact.

[0021] 2. By installing a fixing mechanism, the speaker is installed more firmly inside the speaker box, and can maintain the position and angle of the speaker unchanged when the speaker box moves or is slightly bumped, avoiding the speaker from loosening or being damaged due to vibration.

[0022] 3. The present invention is provided with a cleaning mechanism at the rear end of the bass reflex tube, which protects the interior of the bass reflex tube from the accumulation of dust and debris, avoids clogging of the bass reflex tube, and thus ensures the normal operation of the bass reflex tube. At the same time, it can also indirectly protect the speakers and other components inside the speaker. Timely cleaning of the filter can further reduce external interference, ensure that low-frequency sound waves are not affected by noise when passing through the bass reflex tube, and make the low-frequency response cleaner.

[0023] 4. The present invention has a heat dissipation back cover fixedly installed on the power amplifier cover. When the speaker is working, in addition to the sound-generating components such as the speaker voice coil releasing heat, the digital audio interface and transmission interface of the speaker will also release a large amount of heat. Long-term high-power sound source release will cause the power amplifier chip to generate a large amount of heat, which can easily cause heat accumulation in local areas, resulting in component performance degradation and even circuit short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of an anti-hole blocking heat dissipation speaker of the present invention;

[0025] Figure 2 This is a schematic structural diagram of an anti-hole blocking heat dissipation speaker from another perspective of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of an anti-hole blocking heat dissipation speaker of the present invention;

[0027] Figure 4 This is a schematic structural diagram of a position limiting installation mechanism for an anti-hole blocking heat dissipation speaker of the present invention;

[0028] Figure 5 The present invention is a kind of anti-blocking heat dissipation type speaker Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a schematic structural diagram from another perspective of a position limiting installation mechanism of an anti-hole blocking heat dissipation speaker of the present invention;

[0030] Figure 7 The present invention is a kind of anti-blocking heat dissipation type speaker Figure 6 Enlarged view of point B in the middle;

[0031] Figure 8 This is a schematic structural diagram of a bass reflex pipe cleaning mechanism for an anti-hole blocking and heat dissipation speaker of the present invention;

[0032] Figure 9 This is a schematic diagram of the connecting outer ring structure of an anti-hole blocking heat dissipation speaker of the present invention.

[0033] 1. Front panel; 2. Top panel; 3. Side panel; 4. Amplifier cover; 5. Digital audio interface; 6. Transmission interface; 7. Heat dissipation rear cover; 8. H-shaped reinforcement; 9. Inclined plate; 10. Sound-absorbing cotton; 11. Echo hole; 12. Cone dish; 13. Basin frame; 14. Inverted phase tube; 101. Rotating frame; 102. Mounting bracket; 103. Fixing screw; 104. Docking hole; 105. Connecting pipe; 106. Rotating seat; 107. Round rod; 108. Limit Ring; 109, socket; 110, lower connecting seat; 111, limit seat; 112, pitch-adjusting rod; 201, mounting cross plate; 202, pitch-adjusting platform; 203, pitch-adjusting rod; 204, disc; 205, heat sink; 301, operation box; 302, rotating motor; 303, rotating rod; 304, moving block; 305, through slot; 306, filter screen; 307, guide plate; 308, cleaning outer ring; 309, support arm; 310, cleaning roller. DETAILED DESCRIPTION

[0034] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0035] like Figures 1-9The illustrated embodiment of an anti-blocking hole heat dissipation speaker comprises a front panel 1, a top panel 2 being fixedly mounted on the upper end of the front panel 1, side panels 3 being fixedly mounted on both sides of the rear end of the front panel 1 located on top panel 2, an amplifier cover 4 being fixedly mounted on the rear end of the top panel 2, two upper and lower position limiting mounting mechanisms being fixedly mounted on the rear end of the front panel 1, an echo hole 11 being formed at the lower end of the front panel 1, a bass reflex tube 14 being fixedly mounted on the rear end of the bass reflex tube 14, a cleaning mechanism being fixedly mounted on the rear end of the bass reflex tube 14, and a heat dissipation rear cover 7 being fixedly mounted on the rear surface of the amplifier cover 4;

[0036] The limiting mounting mechanism includes a mounting bracket 102 fixedly mounted on the rear surface of the front panel 1, a rotating bracket 101 is rotatably mounted on the rear end of the mounting bracket 102, a basin rack 13 is provided between the rotating bracket 101 and the mounting bracket 102, a round rod 107 is rotatably mounted on the lower end of the rear side of the rotating bracket 101, and a lifting mechanism is installed through the round rod 107.

[0037] like Figure 3 As shown, sound-absorbing cotton 10 is fixedly installed on the inner surfaces of the two side panels 3, an H-shaped reinforcement 8 is fixedly installed on the upper end between the front panel 1 and the power amplifier cover 4, and an inclined plate 9 is fixedly installed on the lower end between the front panel 1 and the power amplifier cover 4. The inclined plate 9 and the front panel 1 are both penetrated by an inverted tube 14, which guides the sound waves on the back of the speaker to the outside of the speaker through the inverted tube 14 and superimposes with the sound waves on the front of the speaker.

[0038] The rear surface of the power amplifier cover 4 is located on the upper end of the heat dissipation back cover 7 and is fixedly installed with a digital audio interface 5. The rear surface of the power amplifier cover 4 is located on the left side of the heat dissipation back cover 7 and is fixedly installed with a transmission interface 6. The digital audio interface 5 and the transmission interface 6 are both connected through the power amplifier cover 4 and the basin frame 13. After the speaker is used for a long time, the power amplifier chip will generate heat, which may easily cause heat accumulation on the power amplifier cover 4. The heat dissipation back cover 7 is fixedly installed at the rear end of the power amplifier cover 4. A micro fan is arranged inside the heat dissipation back cover 7. When the digital audio interface 5, the transmission interface 6 and the power amplifier chip generate heat, they are discharged outward in time to avoid heat accumulation.

[0039] like Figure 4 , Figure 6 As shown, the limiting mounting mechanism includes a rotating seat 106 fixedly mounted on the lower end of the rear surface of the mounting bracket 102, a symmetrical connecting pipe 105 is fixedly mounted on the upper end of the rear surface of the mounting bracket 102, a limiting ring 108 is fixedly mounted between the two mounting brackets 102, and a docking hole 104 corresponding to the connecting pipe 105 is fixedly mounted on the upper end of the surface of the rotating frame 101 close to the mounting bracket 102, and a fixing screw 103 is rotatably mounted on the rear end of each docking hole 104, a mounting cross plate 201 is fixedly mounted on the rear end of the rotating frame 101, and a heat dissipation mechanism is fixedly mounted on the rear end of the mounting cross plate 201.

[0040] like Figure 5As shown, the lifting mechanism includes a socket 109 fixedly installed in the middle section of the round rod 107, and the socket 109 is rotatably installed with a distance-adjusting rotating rod 112. A lower connecting seat 110 is rotatably installed on one side of the distance-adjusting rotating rod 112. A limiting seat 111 is fixedly installed on the upper end of the lower connecting seat 110. The limiting seat 111 is tightly attached to the lower end of the basin frame 13 to provide an upward supporting force.

[0041] like Figure 7 As shown, the heat dissipation mechanism includes a pitch-adjusting platform 202 fixedly mounted on the middle end of the rear surface of the mounting horizontal plate 201, a pitch-adjusting rod 203 is installed on the outside of the pitch-adjusting platform 202, and the pitch-adjusting rod 203 penetrates the mounting horizontal plate 201 and is rotatably installed with a disk 204, and the pitch-adjusting rod 203 is located at the lower end of the disk 204 and is fixedly mounted with a heat sink 205, and the heat sink 205 increases the heat dissipation effect by controlling the contact with the T-iron at the rear end of the speaker and expanding the heat dissipation area.

[0042] like Figure 8 , Figure 9 As shown, the cleaning mechanism includes a cleaning outer ring 308 rotatably mounted on the rear end of the inverter tube 14, an operating box 301 is fixedly mounted on the outside of the cleaning outer ring 308, a rotating motor 302 is fixedly mounted on the outside of the upper end of the operating box 301, a rotating rod 303 is fixedly mounted on the output end of the rotating motor 302, a moving block 304 is installed through the rotating rod 303, a guide plate 307 is fixedly mounted on the lower end of the outer side of the cleaning outer ring 308, and a filter screen 306 is fixedly mounted on the inner side of the cleaning outer ring 308.

[0043] The lower end of the movable block 304 is located on both sides of the filter 306 and is fixedly installed with a supporting arm 309. The upper and lower ends of each supporting arm 309 are rotatably installed with a number of equidistantly arranged cleaning rollers 310. The cleaning outer ring 308 and the upper end of the operating box 301 are both provided with a through groove 305 at the same position. The cleaning roller 310 moves inside the through groove 305 to remove dust from the surfaces of both sides of the filter 306.

[0044] Working principle: When the speaker is playing sound, the voice coil and amplifier chip inside the speaker will release heat. The external device is connected to the speaker through the digital audio interface 5 and the transmission interface 6, and controls the sound source playback. A heat dissipation back cover 7 is fixedly installed on the rear surface of the amplifier cover 4, and a micro fan for active heat dissipation is provided inside. When the digital audio interface 5 and the transmission interface 6 begin to release heat due to the influence of the amplifier chip, the heat dissipation back cover 7 actively works to cool and dissipate heat to avoid heat accumulation in local areas, which leads to component performance degradation or even circuit short circuit. An H-shaped reinforcement 8 is fixedly installed between the front panel 1 and the amplifier cover 4 to provide additional connection and fixation. The inner surfaces of the two side panels 3 are provided with sound-absorbing cotton 10. Sound is a mechanical wave. When sound propagation encounters obstacles such as the inner wall of the speaker, reflection will occur. If the internal space structure of the speaker is relatively simple, the sound will be reflected multiple times inside the speaker. These reflected sounds will be superimposed on the original sound signal to form standing waves. The setting of the sound-absorbing cotton 10 reduces the number of sound reflections inside and reduces the probability of standing waves forming, thereby making the sound emitted by the speaker purer and avoiding sound quality distortion caused by standing waves.

[0045] Inside the speaker, a slanted plate 9 is fixedly mounted at the lower end of the H-shaped reinforcement 8. A bass reflex tube 14 is installed through both the upper surface of the slanted plate 9 and the lower end of the outer surface of the front panel 1. This tube guides sound waves from the rear of the speaker to the outside of the speaker, where they are superimposed with the sound waves from the front. By utilizing the resonance between the speaker and the bass reflex tube 14, the speaker's low frequencies are extended while maintaining constant sound pressure, giving it a stronger low-frequency dive capability. Because the lower bass reflex tube 14 is connected to the outside air, dust accumulates on the inner filter 306 after long-term use, causing the bass reflex tube 14 to become clogged.

[0046] Therefore, the present invention is provided with a rotatably mounted cleaning mechanism at the rear end of the inverted phase tube 14, wherein a cleaning outer ring 308 is rotatably mounted at the rear end of the inverted phase tube 14, an operation box 301 is fixedly mounted on the upper end of the outer surface of the cleaning outer ring 308, a cleaning mechanism is provided inside the operation box 301, a filter 306 for filtering large particles and dust is fixedly mounted inside the cleaning outer ring 308, a through slot 305 is provided at the same position close to the operation box 301 and the cleaning outer ring 308, wherein a rotating motor 302 is fixedly mounted on one side of the operation box 301, and the rotation A rotating rod 303 is fixedly installed at the output end of the motor 302, and a moving block 304 is installed through the rotating rod 303. The lower end of the moving block 304 is located on both sides of the filter screen 306 and is fixedly installed with a supporting arm 309. The upper and lower ends of each supporting arm 309 are rotatably installed with a number of equidistantly arranged cleaning rollers 310. The cleaning rollers 310 move back and forth inside the through slot 305 by rotating the motor 302. After cleaning the front and rear surfaces of the filter screen 306, impurities and dust are guided by the guide plate 307 to fall below to avoid accumulation. Users can clean it regularly.

[0047] In the present invention, the speaker is first fixedly installed with a limiting installation mechanism before use. The limiting installation mechanism fixes the position of the speaker, making the installation of the speaker inside the speaker more stable. It can maintain the position and angle unchanged when the speaker moves or is hit, avoiding the speaker from loosening or being damaged due to vibration. Before installation, the rotating frame 101 is laid flat, and the operator fixes the speaker to the rear end of the front panel 1. At this time, the cone 12 of the speaker is located inside the limiting ring 108. The limiting ring 108 limits and guides the installation of the speaker to avoid position deviation. After the installation is completed, the operator moves the rotating frame 101 along the rotating seat 106 to fit the rear end of the installation bracket 102. After the connecting pipe 105 is aligned with the docking hole 104, the fixing screw 103 is used to fix the position. At this time, the installation bracket 102 and the rotating frame 101 are fixed to each other.

[0048] After the speaker is installed and fixed, the operator rotates the round rod 107 according to the position of the speaker, and after adjusting the basin frame 13 at the rear end of the speaker, rotates the distance adjustment rod 112 to control the lower connecting seat 110 to move the position. The limit seat 111 fixedly installed on the upper end of the lower connecting seat 110 fits the lower end of the basin frame 13, providing an upward supporting force for the speaker, fixing the position to avoid mechanical looseness and resonance caused by long-term use.

[0049] The voice coil in the speaker will release a lot of heat after working at high power for a long time. The T-iron at the rear end cannot dissipate the heat in time. The operator rotates the pitch adjustment rod 203 installed at the rear end of the pitch adjustment platform 202, and controls the heat sink 205 to be close to the T-iron at the rear end of the basin frame 13 through the pitch adjustment rod 203, so that the heat sink 205 is in close contact with the T-iron to avoid excessive thermal resistance due to poor contact.

[0050] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-blocking heat dissipation speaker, comprising a front panel (1), characterized in that: The top of the front panel (1) is fixedly mounted with a top panel (2), the rear end of the front panel (1) is located on both sides of the top panel (2) and is fixedly mounted with side panels (3), the rear end of the top panel (2) is fixedly mounted with a power amplifier cover (4), the rear end of the front panel (1) is fixedly mounted with two upper and lower position limiting mounting mechanisms, the lower end of the front panel (1) is provided with an echo hole (11), the rear end of the echo hole (11) is fixedly mounted with an inverted phase tube (14), the rear end of the inverted phase tube (14) is fixedly mounted with a cleaning mechanism, and the rear surface of the power amplifier cover (4) is fixedly mounted with a heat dissipation rear cover (7); The position-limiting mounting mechanism comprises a mounting bracket (102) fixedly mounted on the rear surface of the front panel (1); a rotating bracket (101) is rotatably mounted on the rear end of the mounting bracket (102); a basin frame (13) is provided between the rotating bracket (101) and the mounting bracket (102); a round rod (107) is rotatably mounted on the lower end of the rear side of the rotating bracket (101); and a lifting mechanism is installed through the round rod (107); The rear surface of the power amplifier cover (4) is located on the upper end of the heat dissipation rear cover (7) and is fixedly mounted with a digital audio interface (5); the rear surface of the power amplifier cover (4) is located on the left side of the heat dissipation rear cover (7) and is fixedly mounted with a transmission interface (6); the digital audio interface (5) and the transmission interface (6) both pass through the power amplifier cover (4) and are in communication with the basin frame (13); The position-limiting mounting mechanism comprises a rotating seat (106) fixedly mounted on the lower end of the rear surface of the mounting bracket (102); a symmetrical connecting pipe (105) is fixedly mounted on the upper end of the rear surface of the mounting bracket (102); a position-limiting ring (108) is fixedly mounted between the two mounting brackets (102); a docking hole (104) corresponding to the connecting pipe (105) is fixedly mounted on the upper end of the surface of the rotating bracket (101) close to the mounting bracket (102); and a fixing screw (103) is rotatably mounted at the rear end of each docking hole (104). The rear end of the rotating frame (101) is fixedly mounted with a mounting transverse plate (201), and the rear end of the mounting transverse plate (201) is fixedly mounted with a heat dissipation mechanism; the heat dissipation mechanism comprises a pitch adjustment platform (202) fixedly mounted on the middle end of the rear surface of the mounting transverse plate (201), a pitch adjustment rod (203) is installed through the outer side of the pitch adjustment platform (202), and the pitch adjustment rod (203) is rotatably mounted with a disk (204) penetrating the mounting transverse plate (201), and a heat dissipation fin (205) is fixedly mounted on the lower end of the disk (204); The cleaning mechanism comprises a cleaning outer ring (308) rotatably mounted on the rear end of the inverted phase tube (14); an operating box (301) is fixedly mounted on the outside of the cleaning outer ring (308); a rotating motor (302) is fixedly mounted on the outside of the upper end of the operating box (301); a rotating rod (303) is fixedly mounted on the output end of the rotating motor (302); a moving block (304) is installed through the rotating rod (303); a guide plate (307) is fixedly mounted on the lower end of the outer side of the cleaning outer ring (308); and a filter screen (306) is fixedly mounted on the inner side of the cleaning outer ring (308).

2. The anti-blocking heat dissipation speaker according to claim 1, characterized in that: Sound-absorbing cotton (10) is fixedly installed on the inner surfaces of the two side panels (3), an H-shaped reinforcement (8) is fixedly installed on the upper end between the front panel (1) and the power amplifier cover (4), and an inclined plate (9) is fixedly installed on the lower end between the front panel (1) and the power amplifier cover (4).

3. The anti-blocking heat dissipation speaker according to claim 1, characterized in that: The lifting mechanism comprises a socket (109) fixedly mounted on the middle section of the round rod (107); a distance-adjusting rotating rod (112) is rotatably mounted on the socket (109); a lower connecting seat (110) is rotatably mounted on one side of the distance-adjusting rotating rod (112); and a limit seat (111) is fixedly mounted on the upper end of the lower connecting seat (110).

4. The anti-blocking heat dissipation speaker according to claim 1, characterized in that: The lower end of the movable block (304) is located on both sides of the filter screen (306) and is fixedly mounted with supporting arms (309). The upper and lower ends of each supporting arm (309) are rotatably mounted with a plurality of equidistantly arranged cleaning rollers (310). A through slot (305) is provided at the same position on the upper end of the cleaning outer ring (308) and the operating box (301).

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