Sound box

Abstract

The utility model provides a sound box, which belongs to the technical field of sound box equipment and comprises an outer shell and an inner shell assembly. The shell comprises a first wall and a second wall which are connected, and the second wall is provided with heat dissipation holes. The inner shell assembly is contained in the outer shell, the heat dissipation piece and the vibrating diaphragm are connected to the surface of the inner shell, a first heat dissipation cavity is defined by the vibrating diaphragm and the first wall, a second heat dissipation cavity is defined by the heat dissipation piece and the second wall, the first heat dissipation cavity and the heat dissipation holes are communicated with the second heat dissipation cavity, and the second heat dissipation cavity is communicated with the outside through the heat dissipation holes. The vibrating diaphragm can generate vibration, so that air in the first heat dissipation cavity flows, and then air in the second heat dissipation cavity flows through the surface of the heat dissipation piece and then flows out of the heat dissipation holes. According to the sound box provided by the embodiment of the utility model, air flow can be promoted through vibration of the vibrating diaphragm, and the heat dissipation efficiency of the sound box is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound box equipment technical field, concretely relates to sound box. BACKGROUND

[0002] In the related art, in order to improve the sound quality of the sound box, the prior art usually improves the specifications of the chip and power amplifier. However, the improvement of the chip specification will increase the heat generation of the sound box, thereby affecting the working performance and working life of the sound box. The prior art transmits heat to the shell through heat conduction, and then transmits heat to the air through heat exchange between the shell and the air to achieve heat dissipation of the sound box. However, the heat dissipation efficiency of the above scheme is low. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a sound box, and the sound box has higher heat dissipation efficiency.

[0004] The sound box according to the first aspect of the utility model comprises:

[0005] A shell comprising a first wall and a second wall connected to each other, wherein the second wall has a heat dissipation hole;

[0006] An inner shell assembly accommodated in the shell, wherein the inner shell assembly comprises an inner shell body, a heat dissipation member and a diaphragm, the heat dissipation member and the diaphragm are connected to the surface of the inner shell body, the diaphragm and the first wall define a first heat dissipation cavity, the heat dissipation member and the second wall define a second heat dissipation cavity, the first heat dissipation cavity and the heat dissipation hole are both in communication with the second heat dissipation cavity, and the second heat dissipation cavity is in communication with the outside through the heat dissipation hole;

[0007] The diaphragm can generate vibration to make the air in the first heat dissipation cavity flow, and then make the air in the second heat dissipation cavity flow through the surface of the heat dissipation member and then flow out from the heat dissipation hole.

[0008] The sound box has at least the following beneficial effects: when the diaphragm vibrates, the volume of the first heat dissipation cavity defined by the first wall and the diaphragm changes, when the volume of the first heat dissipation cavity decreases, the air in the first heat dissipation cavity is extruded and flows to the second heat dissipation cavity in communication with the first heat dissipation cavity, further causing the air in the second heat dissipation cavity to flow and take away the heat on the surface of the heat dissipation member, the air carrying the heat can flow out to the outside through the heat dissipation holes, and heat dissipation of the sound box is realized.

[0009] According to some embodiments of the present application, the inner shell assembly further comprises a loudspeaker, the loudspeaker is installed inside the inner shell body and comprises the diaphragm.

[0010] According to some embodiments of the present application, the inner shell assembly further comprises a loudspeaker and a passive basin, the loudspeaker is installed on the inner shell body, the passive basin is connected to the surface of the inner shell body, and the passive basin comprises the diaphragm; the vibration generated by the loudspeaker is transmitted to the diaphragm through the air inside the inner shell body, so that the diaphragm vibrates.

[0011] According to some embodiments of the present application, the inner shell assembly further comprises at least two loudspeakers, wherein the two loudspeakers are arranged on the two sides of the diaphragm perpendicular to the vibration direction of the diaphragm.

[0012] According to some embodiments of the present application, the shell comprises two first walls, the two first walls are oppositely arranged; the inner shell assembly comprises at least two diaphragms, each diaphragm is connected to the surface of the inner shell body, wherein the two diaphragms are arranged on the opposite sides of the heat dissipation member, and the two diaphragms and different first walls define the first heat dissipation cavities, and the two first heat dissipation cavities are located on the two sides of the second heat dissipation cavity.

[0013] According to some embodiments of the present application, the inner shell comprises a guide portion surrounding the outer periphery of the diaphragm, the sound box further comprises a plurality of flow guides, the flow guides are located on the side of the diaphragm close to the second heat dissipation cavity, at least part of the flow guides is located between the guide portion and the first wall and connects the guide portion and the first wall, the plurality of flow guides are arranged in a first direction and define a plurality of first heat dissipation channels between the guide portion and the first wall, the first heat dissipation cavity is communicated with the second heat dissipation cavity through the first heat dissipation channels, the first wall and the second wall are arranged along the circumference of the inner shell, and the first direction is perpendicular to the circumferential cross section of the inner shell.

[0014] According to some embodiments of the present application, part of the flow guides are located between the second wall and the heat dissipation member and connect the heat dissipation member and the second wall.

[0015] According to some embodiments of the present application, part of the flow guides are located between the guide portion and the first wall and define the first heat dissipation channels, and part of the flow guides are located between the second wall and the heat dissipation member and separate the second heat dissipation cavity into a plurality of second heat dissipation channels distributed along the first direction, and each second heat dissipation channel is communicated with the first heat dissipation cavity through at least one first heat dissipation channel.

[0016] According to some embodiments of the present application, the sound box further comprises a heating element, and the heating element is connected to the side of the heat dissipation member away from the second heat dissipation cavity.

[0017] According to some embodiments of the present application, the sound box further comprises a heat sink, one end of the heat sink is connected to the heating element, and the other end of the heat sink is connected to the heat dissipation member.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, part will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in combination with the drawings and embodiments, wherein:

[0020] Figure 1 It is an overall schematic view of the sound box of some embodiments of the present application;

[0021] Figure 2 It is an overall schematic view of the sound box of some embodiments of the present application; Figure 1 It is an overall schematic view of the sound box of some embodiments of the present application;

[0022] Figure 3 It is an overall schematic view of the sound box of some embodiments of the present application; Figure 2 It is an overall schematic view of the sound box of some embodiments of the present application;

[0023] Figure 4 is a right view of Figure 2 ;

[0024] Figure 5 is a cross-sectional view of Figure 4 ;

[0025] Figure 6 is a partial enlarged view of Figure 5 ;

[0026] Reference signs:

[0027] dust cover 100;

[0028] housing 200, heat dissipation hole 210, sound emitting hole 220, first wall 230, second wall 240;

[0029] inner shell assembly 300, inner shell 310, guide part 311, heat dissipation part 320, diaphragm 330, loudspeaker 340, passive basin 350;

[0030] first heat dissipation cavity 400;

[0031] second heat dissipation cavity 500, second heat dissipation channel 510;

[0032] first heat dissipation channel 600;

[0033] flow guide part 700;

[0034] heating element 800;

[0035] heat sink 900;

[0036] thermally conductive silica gel 1000. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0038] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0039] In the description of the utility model, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If it is described to the first, the second is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0040] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0041] In the description of the utility model, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Please refer to Figures 1-6 As shown in the figure, the utility model provides a sound box.The sound box comprises an outer shell 200 and an inner shell assembly 300.

[0043] Please refer to Figure 2 As shown in the figure, the outer shell 200 of the utility model comprises a first wall 230 and a second wall 240 connected, the second wall 240 has a heat dissipation hole 210, and the inner shell assembly 300 is contained in the outer shell 200.The utility model does not limit the connection relationship between the inner shell assembly 300 and the outer shell 200, in some embodiments, the inner shell assembly 300 further comprises a support, and the inner shell assembly 300 is fixedly connected to the outer shell 200 through the support, and in another embodiment, the inner shell assembly 300 is clamped to the inner wall of the outer shell 200.

[0044] Please refer to Figures 2-5 As shown in the figure, the inner shell assembly 300 of the utility model comprises an inner shell body 310, a heat dissipation piece 320 and a diaphragm 330, the heat dissipation piece 320 and the diaphragm 330 are connected to the surface of the inner shell body 310, the diaphragm 330 and the first wall 230 define a first heat dissipation cavity 400, the heat dissipation piece 320 and the second wall 240 define a second heat dissipation cavity 500, the first heat dissipation cavity 400 and the heat dissipation hole 210 are all communicated with the second heat dissipation cavity 500, and the second heat dissipation cavity 500 is communicated with the outside through the heat dissipation hole 210.

[0045] The diaphragm 330 of the utility model can produce vibration to make the air in the first radiating cavity 400 flow, and after entering the second radiating cavity 500, flow through the surface of the radiating piece 320 and then flow out from the radiating hole 210. Figure 5 、 Figure 6 When the diaphragm 330 vibrates, the volume of the first radiating cavity 400 defined by the first wall 230 and the diaphragm 330 will change, and when the volume of the first radiating cavity 400 decreases, the air in the first radiating cavity 400 is extruded to flow towards the second radiating cavity 500 which is in communication with the first radiating cavity 400, further making the air in the second radiating cavity 500 also flow and take away the heat on the surface of the radiating piece 320, and the air carrying the heat can flow out to the outside through the radiating hole 210, realizing the heat dissipation of the sound box. When the volume of the first radiating cavity 400 increases, the air outside can return to the second radiating cavity 500 through the radiating hole 210 to absorb the heat on the surface of the radiating piece 320, so that when the volume of the first radiating cavity 400 decreases again due to vibration, the air in the second radiating cavity 500 can take away the heat accumulated on the surface of the radiating piece 320 again. The vibrating diaphragm 330 repeatedly changes the volume of the first radiating cavity 400 between an upper limit value and a lower limit value, so as to continuously drive the air flow and circulate to dissipate the heat of the sound box.

[0046] It should be noted that the diaphragm 330 can emit sound by vibration, and under the premise of not departing from the inventive concept of the utility model, those skilled in the art can also set corresponding structures on the shell 200 according to the hearing needs of the user, please refer to Figure 2 、 Figure 4 、 Figure 5 In some embodiments, the shell 200 is also provided with a sound emitting hole 220 for the sound emitted by the diaphragm 330 to pass through, and the sound emitting hole 220 is in communication with the first radiating cavity 400. When the diaphragm 330 vibrates, part of the air in the first radiating cavity 400 can flow directly into the outside through the sound emitting hole 220, propagate the sound emitted by the diaphragm 330, and make the air in the first radiating cavity 400 directly exchange heat with the outside, but part of the air in the first radiating cavity 400 can still make the air in the second radiating cavity 500 flow, and then take away the heat of the radiating piece 320 to the outside through the radiating hole 210. The sound box in the above-mentioned embodiments is also within the protection scope of the utility model.

[0047] Without departing from the inventive concept of the utility model, the specification of the vibrating diaphragm 330, the heat dissipation piece 320, the inner shell 310, the outer shell 200 and the heat dissipation hole 210 can be adjusted properly by those skilled in the art, so that the vibration amplitude of the vibrating diaphragm 330, the volume of the first heat dissipation cavity 400 and the second heat dissipation cavity 500 are changed, and then the air in the first heat dissipation cavity 400 can flow directly to the second heat dissipation cavity 500 during the vibration of the vibrating diaphragm 330, and the heat on the heat dissipation piece 320 is taken out to the outside through the heat dissipation hole 210.

[0048] The utility model does not limit the communication relationship between the first heat dissipation cavity 400 and the second heat dissipation cavity 500, in some embodiments, the heat dissipation piece 320 and the vibrating diaphragm 330 are connected, and the first heat dissipation cavity 400 and the second heat dissipation cavity 500 are directly communicated. Figure 5 As shown in FIG. 5, the heat dissipation piece 320 is connected to the front wall of the inner shell 310, the vibrating diaphragm 330 is connected to the right wall of the inner shell 310, the part of the right front of the inner shell 310 and the outer shell 200 jointly define a heat dissipation channel, and the first heat dissipation cavity 400 is indirectly communicated with the second heat dissipation cavity 500 through the heat dissipation channel. When the volume of the first heat dissipation cavity 400 is reduced, the air in the first heat dissipation cavity 400 is extruded and can flow to the heat dissipation channel directly communicated with the first heat dissipation cavity 400, further making the air in the heat dissipation channel also flow to the second heat dissipation cavity 500 directly communicated with the heat dissipation channel, so that the air in the second heat dissipation cavity 500 also flows and takes away the heat on the surface of the heat dissipation piece 320, the air carrying the heat can flow out to the outside through the heat dissipation hole 210, and the heat dissipation of the sound box is realized.

[0049] As shown in FIG. 5, the heat dissipation piece 320 is connected to the front wall of the inner shell 310, the vibrating diaphragm 330 is connected to the right wall of the inner shell 310, the part of the right front of the inner shell 310 and the outer shell 200 jointly define a heat dissipation channel, and the first heat dissipation cavity 400 is indirectly communicated with the second heat dissipation cavity 500 through the heat dissipation channel. When the volume of the first heat dissipation cavity 400 is reduced, the air in the first heat dissipation cavity 400 is extruded and can flow to the heat dissipation channel directly communicated with the first heat dissipation cavity 400, further making the air in the heat dissipation channel also flow to the second heat dissipation cavity 500 directly communicated with the heat dissipation channel, so that the air in the second heat dissipation cavity 500 also flows and takes away the heat on the surface of the heat dissipation piece 320, the air carrying the heat can flow out to the outside through the heat dissipation hole 210, and the heat dissipation of the sound box is realized. Figure 2 、 Figure 5 、 Figure 6 As shown in FIG. 5, the heat dissipation piece 320 is connected to the front wall of the inner shell 310, the vibrating diaphragm 330 is connected to the right wall of the inner shell 310, the part of the right front of the inner shell 310 and the outer shell 200 jointly define a heat dissipation channel, and the first heat dissipation cavity 400 is indirectly communicated with the second heat dissipation cavity 500 through the heat dissipation channel. When the volume of the first heat dissipation cavity 400 is reduced, the air in the first heat dissipation cavity 400 is extruded and can flow to the heat dissipation channel directly communicated with the first heat dissipation cavity 400, further making the air in the heat dissipation channel also flow to the second heat dissipation cavity 500 directly communicated with the heat dissipation channel, so that the air in the second heat dissipation cavity 500 also flows and takes away the heat on the surface of the heat dissipation piece 320, the air carrying the heat can flow out to the outside through the heat dissipation hole 210, and the heat dissipation of the sound box is realized.

[0050] In some embodiments, the sound box is also provided with a dust cover 100 for beautifying the sound box, the dust cover 100 has air permeability, and the air in the second heat dissipation cavity 500 can flow to the outside through the dust cover 100 after passing through the heat dissipation hole 210.

[0051] Without departing from the inventive concept of the utility model, the utility model does not limit the type of the sound box, and the type of the sound box can be a Bluetooth sound box, a computer sound box, a desktop sound box, a karaoke sound box, a wireless sound box, a portable sound box, an outdoor sound box, a waterproof sound box, a vehicle-mounted sound box and the like.

[0052] The utility model is not limited to the mode of generating vibration to the diaphragm 330. In some embodiments, the inner shell assembly 300 further comprises a speaker 340, which is installed inside the inner shell 310 and comprises the diaphragm 330. In the working state of the speaker 340, the internal structure (e.g., the magnet) of the speaker 340 can actively drive the diaphragm 330 to vibrate, so that the diaphragm 330 can continuously drive the air flow, thereby dissipating heat from the sound box.

[0053] Further, as shown in Figure 2 , Figure 3 In some embodiments, the inner shell assembly 300 further comprises a speaker 340 and a passive basin 350, the speaker 340 is installed in the inner shell 310, and the passive basin 350 is connected to the surface of the inner shell 310, the passive basin 350 comprises the diaphragm 330; the vibration generated by the speaker 340 is transmitted to the diaphragm 330 through the air inside the inner shell 310, so that the diaphragm 330 generates vibration.

[0054] Specifically, as shown in Figure 5 The inner shell 310 has a closed cavity inside, and the vibration generated by the speaker 340 will change the volume of the cavity of the inner shell 310, when the volume of the inner shell 310 decreases, the air pressure inside the cavity increases, and the air inside the cavity will also squeeze the diaphragm 330 to deform the diaphragm 330 towards the first heat dissipation cavity 400, when the volume of the inner shell 310 increases, the air pressure inside the cavity decreases, and the air in the first heat dissipation cavity 400 will also squeeze the diaphragm 330 to deform the diaphragm 330 away from the first heat dissipation cavity 400.

[0055] Through the above process, the continuous vibration of the speaker 340 will also cause the diaphragm 330 to vibrate (it should be noted that the vibration of the diaphragm 330 is not necessarily synchronized with the vibration of the speaker 340), and the continuous vibration of the diaphragm 330 will further cause the air flow in the first heat dissipation cavity 400, thereby causing the air flow in the second heat dissipation cavity 500, and the heat of the heat dissipation member 320 is taken out to the outside through the heat dissipation hole 210. On the other hand, due to the continuous vibration of the speaker 340, the diaphragm 330 also generates continuous vibration, and the diaphragm 330 can produce relatively low audio according to the audio emitted by the speaker 340, further enriching the auditory experience of the user, and since the diaphragm 330 in the above embodiment does not belong to the internal structure of the speaker 340, the position of the diaphragm 330 and the speaker 340 can be flexibly adjusted by those skilled in the art.

[0056] Further, in some embodiments, the inner shell assembly 300 further comprises at least two speakers 340, the two speakers 340 being arranged on two sides of the diaphragm 330 perpendicular to the vibration direction of the diaphragm 330. The plurality of speakers 340 can simultaneously make the vibration amplitude of the diaphragm 330 larger through the air in the cavity inside the inner shell 310, enhance the ability of the first heat dissipation cavity 400 to press the air, the flowability of the air in the second heat dissipation cavity 500 is stronger, and the heat dissipation efficiency of the sound box is enhanced. On the other hand, the two speakers 340 can also provide a more stereoscopic audio effect and enhance the auditory experience of the user.

[0057] Further, please refer to Figure 5 In some embodiments, the outer shell 200 comprises two first walls 230 arranged oppositely, and the inner shell assembly 300 comprises at least two diaphragms 330, each diaphragm 330 being connected to the surface of the inner shell 310, wherein the two diaphragms 330 are arranged on two opposite sides of the heat dissipation member 320, and the two diaphragms 330 and the different first walls 230 define the first heat dissipation cavities 400, and the two first heat dissipation cavities 400 are respectively located on two sides of the second heat dissipation cavity 500. Through the above scheme, when the two diaphragms 330 vibrate, the air in the plurality of first heat dissipation cavities 400 can push the air in the second heat dissipation cavity 500 to flow, so that the air in the second heat dissipation cavity 500 flows faster, and the heat dissipation efficiency of the sound box is higher.

[0058] In some embodiments, the sound box comprises at least two speakers 340, the two speakers 340 being arranged on two opposite sides of the heat dissipation member 320, and each speaker 340 comprises a diaphragm 330. In addition to actively making the diaphragm 330 vibrate to dissipate heat from the sound box, the two speakers 340 can also provide a more stereoscopic audio effect and enhance the auditory experience of the user.

[0059] Please refer to Figure 5 In some embodiments, the sound box comprises a speaker 340 and at least two passive cones 350, each passive cone 350 comprising a diaphragm 330, and the vibration generated by the speaker 340 is transmitted to the diaphragm 330 of the plurality of passive cones 350 through the air inside the inner shell 310 to make the diaphragm 330 of the plurality of passive cones 350 vibrate. The speaker 340 makes the diaphragm 330 of the plurality of passive cones 350 vibrate at the same time, and the vibration of the plurality of diaphragms 330 can further provide a stereoscopic low-frequency sound effect and enhance the auditory experience of the user.

[0060] More specifically, please refer to Figure 2 , Figure 3 , Figure 5As shown, in some embodiments, the heat dissipation member 320 is arranged at the front side of the inner housing 310, the two passive bass 350 are arranged at the left and right sides of the inner housing 310 respectively, and the two speakers 340 are arranged at the upper and lower sides of the inner housing 310 (the speaker 340 at the lower side is not shown in the figure). When the speaker 340 emits sound, the vibration of the speaker 340 can be transmitted to the diaphragm 330 of the two passive bass 350 through the air in the cavity inside the inner housing 310, so that the diaphragm 330 generates vibration at the same time, and the left and right sides of the sound box can emit relatively low-pitched sound. When the user is located at the front or rear side of the sound box, the low-frequency sound effect generated by the diaphragm 330 can be obviously perceived.

[0061] As mentioned above, in some embodiments, the first heat dissipation cavity 400 is indirectly communicated with the second heat dissipation cavity 500 through the heat dissipation channel defined by the inner housing 310 and the outer shell 200. In some embodiments, please refer to Figure 2 、 Figure 3 、 Figure 5 As shown, the inner housing 310 includes a guide portion 311 surrounding the outer periphery of the diaphragm 330, and the sound box further includes a plurality of flow guides 700 located at the side of the diaphragm 330 close to the second heat dissipation cavity 500. At least part of the flow guides 700 is located between the guide portion 311 and the first wall 230 and connects the guide portion 311 and the first wall 230. The plurality of flow guides 700 are arranged in a first direction and define a plurality of first heat dissipation channels 600 between the guide portion 311 and the first wall 230. The first heat dissipation cavity 400 is communicated with the second heat dissipation cavity 500 through the first heat dissipation channels 600. The first wall 230 and the second wall 240 are arranged along the circumference of the inner housing 310, and the first direction (i.e. the up-down direction in Figure 2 、 Figure 3 the above and below direction) is perpendicular to the cross section of the inner housing 310 along the circumference. The flow guides 700 contained in the first heat dissipation channels 600 can reduce the space of the first heat dissipation channels 600 in the first direction, thereby limiting the movement of the air in the first heat dissipation channels 600 in the first direction when being extruded, and also limiting the movement of the air in the first heat dissipation cavity 400 in the first direction when passing through the first heat dissipation channels 600 into the second heat dissipation cavity 500, thereby playing a role of guiding the air flow and reducing the kinetic energy loss of the air during the flow, so that more air can carry away the heat on the surface of the heat dissipation member 320.

[0062] Further, please refer to Figure 3As shown, in some embodiments, a portion of the heat guide 700 is located between the second wall 240 and the heat sink 320, connecting the heat sink 320 and the second wall 240. In the above-described solution, the heat sink 320 can conduct heat to the outer casing 200 through the heat guide 700, significantly improving heat dissipation efficiency. As a preferred embodiment, the heat guide 700 can be made of silicone, which has good thermal conductivity. The silicone-based heat guide 700 can also fully contact the heat sink 320 and the second wall 240 through its own elasticity, strengthening the connection between the outer casing 200 and the inner casing assembly 300, and increasing the overall structural strength of the speaker.

[0063] Further, please refer to Figure 3 , Figure 5 As shown, in some embodiments, a portion of the flow guide 700 is located between the second wall 240 and the heat sink 320, and divides the second heat sink cavity 500 into a plurality of second heat sink channels 510 distributed along the first direction. Each second heat sink channel 510 is connected to the first heat sink cavity 400 through at least one first heat sink channel 600.

[0064] Through the above solutions, the air guide 700 can further reduce the space of the second heat dissipation cavity 500 in the first direction, further restrict the movement of air in the second heat dissipation channel 510 in the first direction when compressed, and also restrict the movement of air in the first heat dissipation cavity 400 in the first direction after entering the second heat dissipation cavity 500, thus further playing a guiding role for airflow. The air in the second heat dissipation cavity 500 can flow a longer distance along the direction from the first heat dissipation cavity 400 to the second heat dissipation cavity 500, thereby carrying away more heat from the surface of the heat dissipation component 320.

[0065] For example, please refer to Figure 3 , Figure 5 As shown, in some embodiments, wherein Figure 3 The flow guide 700 shown will Figure 5 The second heat dissipation cavity 500 shown is divided into two second heat dissipation channels 510 along the first direction. The two second heat dissipation channels 510 are respectively connected to different first heat dissipation channels 600. When the air in the first heat dissipation cavity 400 on the left enters the second heat dissipation channel 510 through the first heat dissipation channel 600, it can continue to move a further distance to the right under the action of the guide 700, so that the heat of the heat dissipation component 320 accumulated on the right side can also be carried away by the air in the first heat dissipation cavity 400 on the left.

[0066] The heat sink 320 of this invention is used to absorb heat generated inside the speaker. Specifically, the speaker includes a heating element 800, and the heat generated by the heating element 800 can be transferred to the heat sink 320 through conduction. The heating element 800 mentioned in this invention includes, but is not limited to, electronic components such as chips, power amplifiers, resistors, and batteries.

[0067] The utility model discloses the specific position of heating element 800 is not limited, in some embodiments, heating element 800 is connected to the heat dissipation piece 320, and is located in the second heat dissipation cavity 500. The diaphragm 330 of the above embodiment can also make air directly contact heating element 800 when vibrating, and the heat dissipation efficiency is higher.

[0068] As a preferred scheme, please refer to Figure 5 As shown in the figure, heating element 800 is connected to the side of heat dissipation piece 320 away from the second heat dissipation cavity 500. In the above embodiment, heat dissipation piece 320 can block the air of first heat dissipation cavity 400 and the air of second heat dissipation cavity 500 from passing through heating element 800, protecting heating element 800 and reducing dust accumulation of heating element 800, greatly prolonging the service life of the whole sound box.

[0069] Further, please refer to Figure 5 、 Figure 6 As shown in the figure, in some embodiments, the sound box further comprises a heat sink 900, one end of which is connected to heating element 800, and the other end is connected to heat dissipation piece 320. Using heat sink 900 can more quickly export the heat of heating element 800, so that heat dissipation piece 320 can more quickly gather heat, which is conducive to increasing the heat dissipation efficiency of the sound box, while also being able to ensure that heating element 800 is at a lower working temperature, improve the working stability of heating element 800, prolong the service life of the sound box, and bring users a more stable experience.

[0070] As a preferred scheme, in some embodiments, heat sink 900 is made of metal material, which has good heat conduction performance and can accelerate the efficiency of exporting the heat of heating element 800. Preferably, heat sink 900 is made of aluminum alloy material, which has better heat conduction performance and can further improve the heat conduction efficiency of heat sink 900.

[0071] As a preferred scheme, in some embodiments, heat dissipation piece 320 is made of metal material, which has good heat conduction performance and can accelerate the efficiency of exporting the heat of heating element 800. Preferably, heat dissipation piece 320 is made of aluminum alloy material, which has better heat conduction performance and can further improve the heat conduction efficiency of heat dissipation piece 320.

[0072] Further, please refer to Figure 5 、 Figure 6As shown, in some embodiments, the sound box further comprises heat-conducting silica gel 1000, which is arranged between the heat radiator 900 and the heat generating element 800, and the heat-conducting silica gel 1000 arranged between the heat radiator 900 and the heat generating element 800 can fill the gap between the heat radiator 900 and the heat generating element 800, so that the contact between the heat radiator 900 and the heat generating element 800 is more sufficient, and the heat conduction efficiency is improved.

[0073] In some embodiments, the sound box further comprises heat-conducting silica gel 1000, which is arranged between the heat radiator 900 and the heat generating element 800, and the heat-conducting silica gel 1000 arranged between the heat radiator 900 and the heat generating element 800 can fill the gap between the heat radiator 900 and the heat generating element 800, so that the contact between the heat radiator 900 and the heat generating element 800 is more sufficient, and the heat conduction efficiency is improved.

[0074] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A speaker cabinet, characterized by, The audio box comprises: a shell comprising a first wall and a second wall connected to each other, the second wall having a heat dissipation hole; an inner shell assembly accommodated in the shell, the inner shell assembly comprising an inner shell body, a heat dissipation member and a diaphragm, the heat dissipation member and the diaphragm being connected to a surface of the inner shell body, the diaphragm and the first wall defining a first heat dissipation cavity, the heat dissipation member and the second wall defining a second heat dissipation cavity, the first heat dissipation cavity and the heat dissipation hole being in communication with the second heat dissipation cavity, the second heat dissipation cavity being in communication with the outside through the heat dissipation hole; wherein the diaphragm is capable of generating vibration to make the air in the first heat dissipation cavity flow, so that the air in the second heat dissipation cavity flows through the surface of the heat dissipation member and then flows out from the heat dissipation hole.

2. The sound box of claim 1, wherein, The inner shell assembly further comprises a loudspeaker, the loudspeaker being installed inside the inner shell body and comprising the diaphragm.

3. The sound box of claim 1, wherein, The inner shell assembly further comprises a loudspeaker and a passive basin, the loudspeaker being installed on the inner shell body, the passive basin being connected to a surface of the inner shell body, the passive basin comprising the diaphragm; the vibration generated by the loudspeaker is transmitted to the diaphragm through the air inside the inner shell body to make the diaphragm vibrate.

4. The sound box of claim 3, wherein, The inner shell assembly further comprises at least two loudspeakers, wherein the two loudspeakers are arranged on two sides of the diaphragm perpendicular to the vibration direction of the diaphragm.

5. The sound box of claim 1, wherein, The shell comprises two first walls, the two first walls being oppositely arranged; the inner shell assembly comprises at least two diaphragms, each of the diaphragms being connected to a surface of the inner shell body, wherein the two diaphragms are arranged on opposite sides of the heat dissipation member, the two diaphragms and different first walls defining the first heat dissipation cavities, the two first heat dissipation cavities being respectively located on two sides of the second heat dissipation cavity.

6. The sound box of claim 1, wherein, The inner shell body comprises a guide portion surrounding the outer periphery of the diaphragm, the audio box further comprises a plurality of flow guides, the flow guides being located on the side of the diaphragm close to the second heat dissipation cavity, at least part of the flow guides being located between the guide portion and the first wall and connecting the guide portion and the first wall, the flow guides being spaced apart along a first direction and defining a plurality of first heat dissipation channels between the guide portion and the first wall, the first heat dissipation cavity being in communication with the second heat dissipation cavity through the first heat dissipation channels, the first wall and the second wall being arranged along the circumferential direction of the inner shell body, the first direction being perpendicular to the cross section of the inner shell body along the circumferential direction.

7. The sound box of claim 6, wherein, Part of the flow guides are located between the second wall and the heat dissipation member and connect the heat dissipation member and the second wall.

8. The sound box of claim 6, wherein, Part of the flow guides are located between the guide portion and the first wall and define the first heat dissipation channels, part of the flow guides are located between the second wall and the heat dissipation member and divide the second heat dissipation cavity into a plurality of second heat dissipation channels distributed along the first direction, each of the second heat dissipation channels being in communication with the first heat dissipation cavity through at least one of the first heat dissipation channels.

9. The sound box of claim 1, wherein, The audio box further comprises a heating element, the heating element being connected to the side of the heat dissipation member away from the second heat dissipation cavity.

10. The sound box of claim 9, wherein, The sound box further comprises a heat sink, one end of which is connected to the heat generating element and the other end of which is connected to the heat radiating member.

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