Loudspeaker and sound producing device

Abstract

The application discloses a loudspeaker and a sound production device, and belongs to the technical field of loudspeakers, and comprises a box body, a partition plate movably arranged in the box body, and a space in the box body is divided into a cavity and a loudspeaker cavity by the partition plate, and a loudspeaker body is arranged in the loudspeaker cavity, wherein the partition plate is movable relative to the box body to adjust the volume of the loudspeaker cavity. According to the technical scheme of the application, the movable partition plate is arranged in the box body, and when the loudspeaker body arranged in the loudspeaker cavity produces sound, if the partition plate moves to produce sound, the sizes of the cavity and the loudspeaker cavity will change, the frequency response of the medium and high frequencies is changed, and the listening experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of loudspeakers, and particularly relates to a loudspeaker and a sound emitting device. BACKGROUND

[0002] At present, the volume of the front cavity of the related loudspeaker is fixed after the design is completed, the high frequency frequency response peak position and the medium frequency response are relatively fixed, and when playing a sound source that needs to highlight a specified high frequency or medium frequency, the poor external playing effect is caused due to the low frequency response in the specified frequency band. SUMMARY

[0003] The application aims to provide a loudspeaker and a sound emitting device, by arranging a movable baffle in the box body, when the loudspeaker body arranged in the loudspeaker cavity emits sound, if the baffle moves to emit sound, the size of the cavity and the loudspeaker cavity will change, so that the medium and high frequency response is changed, and the technical problem of poor external playing effect is solved.

[0004] In order to achieve the above-mentioned purpose, the loudspeaker provided by the embodiment of the first aspect of the application comprises: a box body; a baffle movably arranged in the box body, and the baffle separates the space in the box body into a cavity and a loudspeaker cavity; and a loudspeaker body arranged in the loudspeaker cavity; wherein the baffle is movable relative to the box body to adjust the volume of the loudspeaker cavity.

[0005] According to the loudspeaker provided by the embodiment of the application, mainly comprising a box body, a baffle and a loudspeaker body, wherein the box body is hollow, the baffle is arranged in the box body, and under the action of the baffle, the space in the box body is separated into a cavity and a loudspeaker cavity, at this time, by arranging the loudspeaker body mainly emitting sound in the loudspeaker cavity, when the baffle moves relative to the box body, the volume of the loudspeaker cavity and the volume of the cavity will change, so that the medium and high frequency response can be changed, and when playing a sound source that needs to highlight the medium and high frequency, the external playing effect is greatly improved.

[0006] It should be emphasized that the application highlights the medium and high frequency response in the process of improvement from the structural aspect, without additional electrical signal processing of the sound source, compared with the existing method of improving the voltage of the corresponding frequency band to improve the frequency response of the corresponding frequency band, the application does not need to generate additional power consumption for electrical signal processing.

[0007] It should be supplemented that the movement of the baffle in the box body will cause the change of the volume of the loudspeaker cavity, and after the movement of the baffle, if the volume of the loudspeaker cavity does not change before and after the movement, the improvement of the frequency response cannot produce positive effect.

[0008] It should be noted that for the closed loudspeaker, the high frequency performance is mainly related to the volume of the front cavity, that is, the volume of the loudspeaker cavity of the application. Generally speaking, the larger the volume of the front cavity, the higher the peak frequency, and the stronger the acoustic performance of the corresponding frequency band. The application utilizes the basic theory of the closed loudspeaker system, adjusts the position of the partition plate in the box, changes the volume of the front cavity, that is, the volume of the loudspeaker cavity, and changes the mid-high frequency response.

[0009] The embodiment of the second aspect of the application provides a sound producing device, comprising: a device body and any of the above loudspeakers arranged on the device body.

[0010] Through the embodiment of the sound producing device provided by the application, the device body and the loudspeaker are mainly included, and the sound source on the device body that needs to produce sound can be played by arranging the loudspeaker on the device body. In addition, since the sound producing device includes the above-mentioned loudspeaker, it has the beneficial effects of any of the above-mentioned loudspeakers, which will not be repeated here.

[0011] The sound producing device includes but is not limited to mobile phones, tablets, sound boxes, televisions and other devices that need to be played and sound.

[0012] The additional aspects and advantages of the application will become apparent in the following description section, or will be understood by practicing the application. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure diagram of the loudspeaker according to one embodiment of the application is shown;

[0014] Figure 2 The exploded structure diagram of the loudspeaker according to one embodiment of the application is shown;

[0015] Figure 3 The combination diagram of the box and the partition plate in one embodiment of the application is shown;

[0016] Figure 4 The structure diagram of the loudspeaker according to one embodiment of the application is shown;

[0017] Figure 5 The structure diagram of the partition plate rotating to the first position in one embodiment of the application is shown;

[0018] Figure 6 The structure diagram of the partition plate rotating to the second position in one embodiment of the application is shown;

[0019] Figure 7 The structure diagram of the partition plate rotating to the third position in one embodiment of the application is shown;

[0020] Figure 8A structural schematic diagram of a sliding connection of a partition according to another embodiment of the present application is shown.

[0021] Figure 9 A structural schematic diagram of a sound production device according to another embodiment of the present application is shown.

[0022] wherein, Figures 1 to 9 The correspondence between the reference signs and the component names in the drawings is as follows:

[0023] 100: loudspeaker; 102: cabinet; 1022: cavity; 1024: loudspeaker cavity; 1026: first shaft hole; 104: loudspeaker body; 1042: support; 1044: vibration assembly; 1046: sound production piece; 1047: magnetic circuit system; 1048: voice coil structure; 106: driving piece; 1062: second shaft hole; 108: partition; 1082: plate body; 1084: pin shaft; 110: sound outlet; 112: sliding rail; 200: sound production device; 202: device body. DETAILED DESCRIPTION

[0024] Embodiments of the present application will be described in detail below, examples of which are shown in the 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. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts, fall within the scope of protection of the present application.

[0025] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0026] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The loudspeaker provided in the embodiments of the present application can be a device with a foldable screen, such as a mobile phone, a tablet, a camera, a video camera, a notebook, etc.

[0028] Reference will now be made to Figures 1 to 9 a loudspeaker and a sound producing device provided according to embodiments of the present application.

[0029] As Figure 1 and Figure 2 shown, one embodiment of the present application proposes a loudspeaker 100, comprising: a box 102; a partition plate 108 movably arranged in the box 102, and the partition plate 108 divides the space in the box 102 into a cavity 1022 and a sound cavity 1024; a loudspeaker body 104 arranged in the sound cavity 1024; wherein the partition plate 108 is movable relative to the box 102 to adjust the volume of the sound cavity 1024.

[0030] According to the embodiments of the loudspeaker 100 provided by the present application, mainly comprising the box 102, the partition plate 108 and the loudspeaker body 104, wherein the box 102 is hollow inside, the partition plate 108 is arranged in the box 102, and under the action of the partition plate 108, as Figure 4 shown, the space in the box 102 can be divided into the cavity 1022 and the sound cavity 1024, at this time, by arranging the loudspeaker body 104 mainly producing sound in the sound cavity 1024, when the partition plate 108 moves relative to the box 102, the volume of the sound cavity 1024 and the volume of the cavity 1022 will both change, so that the mid-high frequency response can be changed, and when playing some sound sources that need to highlight the mid-high frequency, the external playing effect is greatly improved.

[0031] It should be emphasized that in the process of highlighting the mid-high frequency response of the present application, it is a structural improvement, without additional electrical signal processing of the sound source, compared with the existing method of increasing the voltage of the corresponding frequency band to improve the frequency response of the corresponding frequency band, the present application does not need to generate additional power consumption for electrical signal processing.

[0032] It should be added that, as Figure 8 shown, the partition plate 108 in the box 102 can move in the direction of the arrow in the figure, which will cause the volume of the sound cavity 1024 to change, after the partition plate 108 moves, if the volume of the sound cavity 1024 does not change before and after the movement, the improvement of the frequency response cannot produce positive effect.

[0033] It should be noted that for the closed speaker 100, the high frequency performance is mainly related to the volume of the front cavity, that is, the volume of the speaker cavity 1024 of the application. Generally speaking, the larger the volume of the front cavity, the higher the peak frequency, and the stronger the acoustic performance of the corresponding frequency band. The application utilizes the basic theory of the closed speaker 100 system, adjusts the position of the partition plate 108 in the box 102, changes the volume of the front cavity, that is, the volume of the speaker cavity 1024, and changes the mid-high frequency response.

[0034] The shape of the box can be a cuboid or a cylinder, and in theory can be various shapes.

[0035] Further, the driving member 106 is arranged on the box 102, and the driving member 106 is in transmission connection with the partition plate 108. The driving member 106 is used to drive the partition plate 108 to move relative to the box 102.

[0036] By arranging the driving member 106 on the box 102, the driving member 106 can be connected with the partition plate 108, so that the partition plate 108 will move under the action of the driving member 106, and then the volume of the speaker cavity 1024 is adjusted, so that the mid-high frequency response of the specific sound source can be highlighted during playing, and the listening experience of the user is improved.

[0037] It should be noted that by using the driving member 106, the accuracy of controlling the position of the partition plate 108 can be improved, so that the adjustment of the volume of the speaker cavity 1024 is more accurate.

[0038] The driving member 106 can be selected as a motor, and the transmission connection between the driving member 106 and the partition plate 108 can be direct connection, or indirect connection through gear transmission, connecting rod transmission, belt transmission or other transmission structure.

[0039] In one embodiment, the driving member 106 can be arranged in the box.

[0040] In another embodiment, the driving member 106 is arranged outside the box.

[0041] In one embodiment, the partition plate 108 is in rotational connection with the box 102.

[0042] In this embodiment, the partition plate 108 is in rotational connection with the box 102, and under the action of the driving member 106, the partition plate 108 is driven to rotate relative to the box 102, so that the volume distribution on both sides of the partition plate 108 can be adjusted, that is, the space of the speaker cavity 1024 is adjusted. It can be understood that by using the rotating mode, the space of the partition plate 108 during rotation is smaller, and the adjustment of the speaker cavity 1024 is more accurate.

[0043] It should be noted that the partition 108 and the enclosure 102 are rotatably connected. During the rotation, the movable side of the partition 108 remains in contact with the side wall of the enclosure 102, reducing the connection between the cavity 1022 and the speaker cavity 1024.

[0044] Furthermore, such as Figure 3 As shown, the housing 102 has a first shaft hole 1026 on two opposite side plates, and the driving member 106 has a second shaft hole 1062. The partition 108 specifically includes: a plate 1082; and pins 1084, which are respectively disposed on both sides of the plate 1082. The pins 1084 pass through the first shaft hole 1026 on the housing 102 to realize the rotatable connection between the partition 108 and the housing 102. The pins 1084 are inserted into the second shaft hole 1062, and the driving member 106 drives the plate 1082 to rotate.

[0045] By providing a first shaft hole 1026, a second shaft hole 1062, and a pin 1084, the partition 108 can be rotated relative to the housing 102. Specifically, the first shaft hole 1026 is provided on the two opposite side plates of the housing 102, and the second shaft hole 1062 is provided on the drive member 106. The partition 108 mainly includes a plate 1082 and pins 1084 provided on both sides of the plate 1082. Each pin 1084 passes into the corresponding first shaft hole 1026. The pin 1084 serves as the rotation axis of the partition 108 relative to the housing 102. When the pin 1084 rotates within the first shaft hole 1026, the plate 1082 rotates relative to the housing 102.

[0046] The pin 1084 passes through the first shaft hole 1026 and then into the second shaft hole 1062, so that the driving component 106 is directly connected to the pin 1084 for transmission, and the plate 1082 can rotate when the driving component 106 is running.

[0047] In one specific embodiment, the pin 1084 is located near one end of the plate 1082, that is, the range of rotation of the plate 1082 is approximately fan-shaped, thereby allowing for effective adjustment.

[0048] In one embodiment, the partition 108 is slidably connected to the housing 102.

[0049] In this embodiment, by sliding the partition 108 to the enclosure 102, the partition 108 will slide relative to the enclosure 102 under the action of the driving member 106, thereby adjusting the volume distribution on both sides of the partition 108, that is, adjusting the space of the speaker cavity 1024. It can be understood that by using the sliding method, the partition 108 runs more smoothly during the sliding process, and the frequency response adjustment of the speaker cavity 1024 will be more stable, so as to reduce the possibility of reducing the user's listening experience due to sudden adjustment.

[0050] It should be noted that the sliding connection between the partition plate 108 and the box body 102, in the sliding process, the two sides of the partition plate 108 and the side wall of the box body 102 need to be kept in close contact, and the communication between the cavity 1022 and the loudspeaker cavity 1024 is reduced.

[0051] Further, the box body 102 is provided with a sliding rail 112 in the first direction, and the opposite sides of the partition plate 108 can slide on the sliding rail 112, respectively.

[0052] For the sliding connection, mainly using the sliding rail 112 is realized, that is, the sliding rail 112 is arranged on the box body 102 and extends in the first direction, at this time, the two ends of the partition plate 108 are under the action of the sliding rail 112 and slide back and forth in the first direction, thereby adjusting the volume of the loudspeaker cavity 1024.

[0053] It can be understood that for the partition plate 108 on the two sides perpendicular to the first direction, the inner wall of the box body 102 needs to be kept in close contact, and the gap is as small as possible to improve the loudspeaker quality.

[0054] Further, the loudspeaker body 104 specifically comprises: a support 1042, the side of the support 1042 facing the partition plate 108 is provided with a vibration assembly 1044; a sound emitting piece 1046, arranged on the other side of the support 1042.

[0055] For the loudspeaker body 104, it mainly includes a support 1042 and a sound emitter, the support 1042 is used to fix the sound emitter on one side, and a vibration assembly 1044 is further arranged on the other side, the sound emitter is used to emit sound waves, and the air will be vibrated under the action of the vibration assembly 1044, so that the user can feel the specific sound.

[0056] Those skilled in the art can understand that the vibration assembly 1044 is a cone of the loudspeaker 100 structure, which can amplify the sound waves.

[0057] Further, the sound emitting piece 1046 specifically comprises: a magnetic circuit system 1047, the magnetic circuit system 1047 is provided with a mounting position; a voice coil structure 1048, arranged in the mounting position.

[0058] For the sound emitting piece 1046, it mainly includes a magnetic circuit system 1047 and a voice coil structure 1048, the magnetic circuit system 1047 can generate a magnetic field that covers the voice coil structure 1048, when the voice coil structure 1048 in the magnetic field has an audio current passing through, a magnetic field varying with the audio current is generated, which interacts with the magnetic field generated by the magnetic circuit system 1047, so that the voice coil vibrates along the axial direction, thereby causing the surrounding large area of air to vibrate correspondingly, thereby converting mechanical energy into sound energy.

[0059] It should be noted that the magnetic circuit system 1047 is provided with a mounting position, which is mainly annular, and the voice coil structure 1048 can be directly arranged in the mounting position, so that the magnetic circuit system 1047 can limit the voice coil structure 1048 and also fix the voice coil structure 1048 during operation, thereby ensuring the stability during operation.

[0060] In one embodiment, as shown in FIG. 1, the loudspeaker 100 further comprises a sound outlet 110 arranged on a side wall of the cabinet 102 corresponding to the loudspeaker cavity 1024. Figure 4

[0061] In the embodiment, the sound outlet 110 is arranged on the side wall of the loudspeaker cavity 1024 in the cabinet 102, so that the sound produced by the loudspeaker 100 can be directly emitted outward through the sound outlet 110, thereby changing the mid-high frequency response by adjusting the volume of the loudspeaker cavity 1024.

[0062] The application also provides a sound producing device 200, as shown in FIG. 2, which comprises a device body 202 and the loudspeaker 100 in any of the above embodiments arranged on the device body 202. Figure 9

[0063] The loudspeaker 100 is arranged on the device body 202, so that the sound source on the device body 202 that needs to produce sound can be played. In addition, the sound producing device 200 comprises the loudspeaker 100, so it has the beneficial effects of any of the loudspeakers 100, which will not be described here.

[0064] The sound producing device 200 includes but is not limited to devices that need to produce sound, such as mobile phones, tablets, sound boxes, televisions, etc.

[0065] In one specific embodiment, a loudspeaker module is provided, which comprises a loudspeaker front cavity shell (i.e. a cabinet), a driving motor (i.e. a driving member), a front cavity cover plate (i.e. a partition plate), and a loudspeaker single body (i.e. a loudspeaker body). In the embodiment, the front cavity cover plate is matched with a first shaft hole on the front cavity shell through a pin shaft thereon, and is realized to rotate around the shaft through two driving motors. The front cavity shell, the cover plate, and the driving motor are combined and then bonded with the loudspeaker single body through glue to be assembled into a complete loudspeaker module.

[0066] When the driving motor is controlled to drive the partition plate to rotate to different positions, different frequency response protruding frequency bands are formed. Specifically, as shown in FIG. 3, the partition plate is rotated to a first position, and at this time, the frequency response protruding frequency band is 4k-5k, as shown in FIG. 4, the partition plate is rotated to a second position, and at this time, the frequency response protruding frequency band is 3k-4k, as shown in FIG. 5, the partition plate is rotated to a third position, and at this time, the frequency response protruding frequency band is 2k-3k, and as shown in FIG. 6, the partition plate is rotated to a fourth position, and at this time, the frequency response protruding frequency band is 1k-2k. Figure 5 Figure 6 Figure 7 ​​​​As shown, the baffle is rotated to the third position, at which time the frequency response prominent frequency band is 2k~3k.

[0067] For the embodiment of the loudspeaker module, during the installation process, the voice coil structure is first bonded and fixed to the diaphragm (vibration assembly) by means of glue or the like. The wires at both ends of the voice coil are fixed to the spring sheet or conductive pad for connection to the external electrical signal.

[0068] Further, the magnetic circuit system is bonded to the support of the loudspeaker by means of glue, and is then bonded and fixed to the diaphragm by means of glue, so as to complete the assembly of the loudspeaker body.

[0069] The baffle can be placed in the cabinet, the pin shaft on the baffle is inserted into the first shaft hole of the cabinet, and the external driving member is connected. At this time, the loudspeaker body is placed below the baffle, and is bonded and fixed to the cabinet by means of glue, so as to assemble the loudspeaker module.

[0070] Finally, it can be installed into a television or other sound-emitting device.

[0071] When the television or other sound-emitting device is running, the sound source can be subjected to frequency spectrum analysis, and the middle and high frequency bands that need to be strengthened in sound performance are determined. The driving member makes the baffle rotate around the shaft, forms front cavities (i.e., loudspeaker cavities) of different volumes, and realizes the adaptive change of the frequency response of the loudspeaker.

[0072] In another specific embodiment, an intelligent television is provided, mainly comprising a shell and a loudspeaker module arranged in the shell. The number of loudspeaker modules can be one or multiple. The multiple loudspeaker modules can be arranged on the front side or the left and right sides of the intelligent television.

[0073] According to the embodiments of the loudspeaker and the sound-emitting device, by arranging the movable baffle in the cabinet, when the loudspeaker body arranged in the loudspeaker cavity emits sound, if the baffle moves to emit sound, the sizes of the cavity and the loudspeaker cavity will change, so as to change the frequency response of the middle and high frequencies.

[0074] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean 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.

[0075] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A loudspeaker, characterized in that, include: Box; A partition is movably disposed within the enclosure, and the partition divides the space within the enclosure into a cavity and a sound-emitting cavity; The loudspeaker body is disposed within the sound-emitting cavity; The partition is rotatably connected to the enclosure, and the partition can rotate relative to the enclosure to adjust the volume of the speaker cavity; A driving component is disposed on the housing and is connected to the partition plate in a transmission manner; The housing has a first shaft hole on its two opposite side plates, and the drive component has a second shaft hole. The partition specifically includes: plate body; Pins are respectively provided on both sides of the plate, and the pins pass through the first shaft hole on the box to realize the rotational connection between the partition and the box. The pins are inserted into the second shaft hole, and the driving component drives the plate to rotate. During rotation, the movable side of the partition remains in contact with the side wall of the box. The pin is located near one end of the plate, and the plate rotates in a fan-shaped range.

2. The loudspeaker according to claim 1, characterized in that, The speaker body specifically includes: A support frame, wherein a vibration assembly is provided on the side of the support frame facing the partition; The sound-generating element is located on the other side of the bracket.

3. The loudspeaker according to claim 2, characterized in that, The sound-generating component specifically includes: A magnetic circuit system, wherein the magnetic circuit system is provided with a mounting position; A voice coil structure is located at the mounting position.

4. The loudspeaker according to any one of claims 1 to 3, characterized in that, Also includes: The sound outlet is located on the side wall of the enclosure corresponding to the speaker cavity.

5. A sound-generating device, characterized in that, include: Equipment body; The speaker as described in any one of claims 1 to 4 is disposed on the device body.

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