Passive radiator sound box with replaceable counterweight

Abstract

The utility model relates to the technical field of sound boxes, in particular to a passive radiator sound box with a replaceable counterweight, which comprises a box body with a containing cavity, an active sound production unit, a circuit board and a battery pack. The active sounding unit, the circuit board and the battery pack are all arranged in the accommodating cavity of the box body; the active sounding unit and the battery pack are electrically connected with the circuit board; a vibrating diaphragm is arranged on the box body, the inner wall of the vibrating diaphragm is communicated with the accommodating cavity of the box body, and the outer wall of the vibrating diaphragm is magnetically connected with a counterweight piece. According to the utility model, the counterweight piece in the passive radiator can be replaced so as to better adapt to different types of music and obtain better sound effect. Besides, atmosphere light can be generated in a lateral light emitting mode, and when the user faces the sound box, the eyes of the user cannot be irradiated by light in a vertical mode, so that better experience feeling is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of speakers, and more specifically, it relates to a passive radiator speaker with replaceable counterweights. Background Art

[0002] In order to obtain better bass effects, most speakers are equipped with one or more passive radiators on the speaker box; a passive radiator usually consists of a bracket, a diaphragm, and a counterweight, as shown in the passive radiators and speakers disclosed in the patents with publication numbers CN204906671U and CN216852218U.

[0003] The structures of the passive radiators in the above two patents can be summarized as follows: the edge of the diaphragm is bonded to the bracket, and the counterweight is adhered to the central area of the diaphragm. This structure results in the non-replaceability of the counterweight and cannot well adapt to different types of music (different types of music require different counterweights in order for the diaphragm to make a more appropriate instantaneous response). For example, a small-mass counterweight is not suitable for rock and heavy metal types of music, and a large-mass counterweight is not suitable for electronic, pop, and pure tone types of music. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a passive radiator speaker with replaceable counterweights to solve the problems existing in the background art.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0006] A passive radiator speaker with replaceable counterweights includes a speaker box with a receiving cavity, an active sound generating unit, a circuit board, and a battery pack; the active sound generating unit, the circuit board, and the battery pack are all arranged in the receiving cavity of the speaker box; the active sound generating unit and the battery pack are both electrically connected to the circuit board; a diaphragm is provided on the speaker box, the inner wall of the diaphragm is communicated with the receiving cavity of the speaker box, and a counterweight is magnetically connected to the outer wall of the diaphragm.

[0007] Optionally, a first magnetic attracting member is inlaid on the outer wall of the diaphragm, and a second magnetic attracting member is inlaid on the inner wall of the counterweight close to the diaphragm, and the first magnetic attracting member is magnetically connected to the second magnetic attracting member.

[0008] Optionally, both the first magnetic attracting member and the second magnetic attracting member are magnets; or the first magnetic attracting member is a magnet and the second magnetic attracting member is a hardware part; or the first magnetic attracting member is a hardware part and the second magnetic attracting member is a magnet.

[0009] Optionally, a weight identifier for displaying the self-weight of the counterweight is provided on the outer wall of the counterweight.

[0010] Optionally, a music identifier for displaying the music type suitable for the counterweight is provided on the outer wall of the counterweight.

[0011] Optionally, the box body includes an inner container made of a light-transmitting material and a metal outer shell; the metal outer shell sleeves the inner container; a diaphragm hole communicating with the accommodating cavity is formed in the inner container, and the edge of the diaphragm is hermetically arranged on the diaphragm hole; a counterweight hole is formed in the position of the metal outer shell corresponding to the diaphragm hole, and a light-transmitting gap exists between the edge of the counterweight and the inner wall of the counterweight hole; a light-emitting chip board is arranged in the accommodating cavity of the box body, and the light emitted by the light-emitting chip board is transmitted to the outside of the box body in a side-emitting manner through the light-transmitting gap; the light-emitting chip board is electrically connected to the circuit board.

[0012] Optionally, the diaphragm includes a transparent surround portion and an adhesive portion arranged inside the surround portion, and the counterweight has a foggy area and a highly transparent area, and the highly transparent area forms a brand identifier.

[0013] In summary, the utility model has the following beneficial effects: (1) The counterweight is installed on the diaphragm by magnetic adsorption, and the user can quickly replace the corresponding counterweight according to different music types played, so that the passive radiator formed by the box body, the diaphragm and the counterweight makes a suitable instantaneous response following the vibration of the active sound generating unit, thereby improving the bass effect of the speaker. (2) The counterweight is installed on the diaphragm by a magnetic adsorption solution, so that the user does not need to visually align the counterweight when replacing it, and the counterweight can achieve an automatic positioning effect. (3) The light emitted by the light-emitting chip board forms an ambient light at the edge of the counterweight through the reflection and / or transmission of the light-transmitting inner container and / or the surround portion, and is transmitted to the outside of the box body in a side-emitting manner through the light-transmitting gap, avoiding the direct emission of the ambient light into the user's eyes and improving the experience. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is a partial structural diagram of the utility model;

[0016] Figure 3 is a partial top view of the utility model;

[0017] Figure 4 is Figure 3 a cross-sectional view taken along the A-A section;

[0018] Figure 5 is Figure 3 a cross-sectional view taken along the B-B section;

[0019] Figure 6 is Figure 4 an enlarged view of the C area in

[0020] Figure 7 an exploded view of the diaphragm and the counterweight of the utility model;

[0021] Figure 8 It is a partial light-emitting optical path diagram of the present utility model.

[0022] In the figure: 1. box body; 11. inner container; 111. diaphragm hole; 12. metal outer shell; 121. counterweight hole; 2. active sound generating unit; 3. circuit board; 4. battery pack; 5. diaphragm; 51. first magnetic attraction part; 52. folding ring part; 53. bonding part; 6. counterweight; 61. second magnetic attraction part; 62. weight identifier; 63. music identifier; 64. brand identifier; 7. light-emitting chip board. Specific embodiments

[0023] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0024] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature. Terms such as "vertical", "horizontal", "left", "right", "above", "below", and similar expressions are only for the purpose of illustration and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0026] The present utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] The present utility model provides a passive radiator speaker with replaceable counterweights, as Figures 1-7 shown, including a box body 1 with an accommodation cavity, an active sound - generating unit 2, a circuit board 3, and a battery pack 4; the active sound - generating unit 2, the circuit board 3, and the battery pack 4 are all arranged in the accommodation cavity of the box body 1; the active sound - generating unit 2 and the battery pack 4 are both electrically connected to the circuit board 3; a diaphragm 5 is provided on the box body 1, the inner wall of the diaphragm 5 communicates with the accommodation cavity of the box body 1, and a counterweight 6 is magnetically connected to the outer wall of the diaphragm 5.

[0028] In this embodiment, the box body 1 is made of plastic or plywood, and through - holes are provided at positions on the side walls corresponding to the active sound - generating unit 2 and the diaphragm 5 for installing the corresponding active sound - generating unit 2 or diaphragm 5. The specific installation method is prior art and will not be elaborated here. The active sound - generating unit 2 includes a woofer and a tweeter, which are respectively installed at the lower end and the upper end of the front of the box body 1. The circuit board 3 is a power amplifier board integrating a charging function in the prior art, which can be externally powered to charge the battery pack 4 and is electrically connected to the active sound - generating unit 2 and the battery pack 4 through wires. The battery pack 4 is composed of two 18650 lithium batteries and is installed inside the box body 1 by existing fixing methods such as hot melt adhesive, and is close to the rear baffle of the box body 1. The edge of the diaphragm 5 is hermetically bonded to the left and right side walls of the box body 1 by an adhesive. A counterweight 6 (the counterweight 6 also serves as a decorative part) is magnetically adsorbed on the outer wall of the diaphragm 5. The counterweight 6 can be separated from the diaphragm 5, but has sufficient adsorption force to ensure that it will not fall during the process of listening to music. The number of counterweights 6 is multiple, and the main difference lies in their respective weights, such as 10 grams, 20 grams, 30 grams, 50 grams, etc., for adapting to different music types, and users can select according to their subjective feelings. The general rule is: when listening to rock and heavy - metal music, use a heavier counterweight 6; when listening to electronic, pop, and pure - tone music, use a lighter counterweight 6.

[0029] The present utility model installs the counterweight 6 on the diaphragm 5 by magnetic adsorption. Users can quickly replace the corresponding counterweight 6 according to different music types being played, so that the passive radiator formed by the box body 1, the diaphragm 5, and the counterweight 6 makes a suitable instantaneous response following the vibration of the active sound - generating unit 2, thereby improving the bass effect of the speaker.

[0030] In another embodiment, the counterweight 6 is formed by a metal stamping and hollowing process and is processed on the surface according to appearance requirements. The hollowed - out part is filled with a light - transmissive material in a composite manner, making the product light - transmissive and increasing the metallic feeling of the exposed part of the product.

[0031] Further, a first magnetic member 51 is inlaid on the outer wall of the diaphragm 5, and a second magnetic member 61 is inlaid on the inner wall of the weight member 6 close to the diaphragm 5. The first magnetic member 51 is magnetically connected to the second magnetic member 61.

[0032] As Figures 4-7 shown, the outer wall of the diaphragm 5 has a groove, and the first magnetic member 51 is tightly inlaid in the groove; the inner wall of the weight member 6 close to the diaphragm 5 also has a groove, and the second magnetic member 61 is also tightly inlaid in the groove; when the first magnetic member 51 and the second magnetic member 61 are close to each other, they can be adsorbed together.

[0033] In addition, a strong double-sided adhesive layer can also be pasted on the bottom surface of the first magnetic member 51 in contact with the diaphragm 5 to enhance the firmness between the first magnetic member 51 and the diaphragm 5. Similarly, a strong double-sided adhesive layer can also be pasted on the bottom surface of the second magnetic member 61 in contact with the weight member 6 to enhance the firmness between the second magnetic member 61 and the weight member 6. Both the first magnetic member 51 and the second magnetic member 61 are circular rings, and the automatic alignment function can be realized.

[0034] In the present utility model, the weight member 6 is installed on the diaphragm 5 by a magnetic adsorption scheme. Compared with other detachable methods (such as by interference fit), when the user replaces the weight member 6, the weight member 6 can achieve an automatic positioning effect without visual alignment, which is more convenient and fast.

[0035] Further, both the first magnetic member 51 and the second magnetic member 61 are magnets; or the first magnetic member 51 is a magnet and the second magnetic member 61 is a hardware member; or the first magnetic member 51 is a hardware member and the second magnetic member 61 is a magnet.

[0036] Specifically, at least one of the first magnetic member 51 and the second magnetic member 61 is a magnet, and the other can be a magnet or a hardware member that can be adsorbed by a magnet. The hardware member is mainly made of metals such as iron, cobalt, nickel or their alloys.

[0037] Further, a weight identifier 62 for displaying the self-weight of the weight member 6 is provided on the outer wall of the weight member 6.

[0038] As Figure 7 shown, the weight identifier 62 shows the self-weight of the weight member 6, such as 10 grams, 20 grams, 30 grams, 50 grams, etc., which can be set according to actual needs. This setting facilitates the user to quickly find the weight member 6 with the target weight.

[0039] Further, a music identifier 63 for displaying the music type suitable for the weight member 6 is provided on the outer wall of the weight member 6.

[0040] As Figure 7As shown, the music identifier 63 indicates which types of music the counterweight 6 is generally applicable to. For example, if it is marked "Rock", it means that the counterweight 6 is suitable for use when listening to rock music. The music identifier 63 can also be used in combination with the weight identifier 62. For example, "30 grams, Rock" means that the counterweight 6 is suitable for use when listening to light rock music, and "40 grams, Rock" means that the counterweight 6 is suitable for use when listening to heavy rock music. This setting facilitates the user to quickly find the counterweight 6 of the target type that matches the music type.

[0041] Furthermore, the cabinet 1 includes an inner liner 11 made of a light-transmitting material and a metal outer shell 12; the metal outer shell 12 is sleeved on the inner liner 11; a diaphragm hole 111 communicating with the accommodation cavity is formed on the inner liner 11, and the edge of the diaphragm 5 is hermetically arranged on the diaphragm hole 111; a counterweight hole 121 is formed at a position corresponding to the diaphragm hole 111 on the metal outer shell 12, and there is a light-transmitting gap between the edge of the counterweight 6 and the inner wall of the counterweight hole 121; a light-emitting chip board 7 is arranged in the accommodation cavity of the cabinet 1, and the light emitted by the light-emitting chip board 7 is transmitted outside the cabinet 1 in a lateral light-emitting manner through the light-transmitting gap; the light-emitting chip board 7 is electrically connected to the circuit board 3.

[0042] As Figures 1-7 shown, the inner liner 11 is injection-molded from a light-transmitting material such as PC. By etching textures on the mold, its surface becomes foggy, showing a foggy frosted effect of light transmission but not high light transmission. Diaphragm holes 111 for installing the diaphragm 5 are formed on both its left and right side walls. A large and a small through hole for installing a bass speaker and a treble speaker respectively are formed on its front surface, and its back surface is hollowed out to facilitate the installation of components such as the active sound generating unit 2, the circuit board 3, and the battery pack 4 in the accommodation cavity. The metal outer shell 12 is made of metals and their alloys such as aluminum and zinc, and its back surface is hollowed out to facilitate the inner liner 11 to be sleeved into its interior. The scheme of sleeving the metal outer shell 12 on the inner liner 11 to form the cabinet 1 makes the cabinet 1 present a unique metallic texture externally and a light guiding effect internally. The edge of the diaphragm 5 is hermetically bonded to the diaphragm hole 111 by an adhesive. The contour of the counterweight hole 121 is the same as that of the diaphragm hole 111, and there is a light-transmitting gap between its edge and the edge of the counterweight 6 (as shown at the position D in Figure 4 ), and the width of the light-transmitting gap is 3 - 8 mm, which can be set according to actual needs, preferably 5 mm. At least one light-emitting chip board 7 is installed inside the inner liner 11 of the cabinet 1, and a plurality of RGB light-emitting lamp cores are attached to the light-emitting chip board 7, which can emit various colors of light according to actual needs to meet the subjective needs of users and improve the user experience. After the light emitted by the light-emitting chip board 7 forms a light guiding effect through the reflection and / or projection of the inner liner 11 and the reflection of the counterweight 6, a soft light band is formed at the position where the light-transmitting gap is located, and the light will not irradiate outside the cabinet 1 in the direction perpendicular to the outer wall of the cabinet 1, that is, the light will not be in Figure 1shoots directly out of the cabinet 1 in the Y-axis direction, and its optical path diagram can be referred to Figure 8 . This structural setting avoids the direct light of the ambient light formed by the soft light band from directly shining into the user's eyes, improves the experience, and overcomes the problem that the light-emitting unit of the light-emitting speaker disclosed in the patents with publication numbers CN216408857U3 and CN215808308U emits light in a direct-emitting manner (the light-emitting direction is perpendicular to the cabinet). When the user faces the speaker, the eyes are easily irradiated by the light vertically, causing discomfort.

[0043] Furthermore, the diaphragm 5 includes a transparent surround portion 52 and an adhesive portion 53 provided inside the surround portion 52. The weight member 6 has a foggy area and a highly transparent area, and the highly transparent area forms a brand identifier 64.

[0044] As Figure 7 shown, the diaphragm 5 consists of a surround portion 52 and an adhesive portion 53. The surround portion 52 is made of a light-transmitting silicone / rubber material, and the adhesive portion 53 is made of a hard material such as carbon fiber, generally a flat plate-like body, providing an adhesive position for the weight member 6. The first magnetic member 51 is embedded in the adhesive portion 53. The weight member 6 is injection-molded from a light-transmitting material such as PC or PMMA. By etching the texture at the position of the non-brand identifier 64 on the mold, its surface becomes foggy, showing a foggy matte effect of being light-transmitting but not highly transparent. The position of the brand identifier 64 has a highly transparent effect, and the brand name or logo of the speaker is displayed in a light-emitting manner. In addition, in order to make the light-emitting effect of the brand identifier 64 and the light-transmitting gap more transparent and distinct, a light-shielding coating can be provided in the foggy area of the weight member 6, specifically on the inner wall of the weight member 6.

[0045] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A passive radiator speaker with replaceable counterweights, comprising a box body with a receiving cavity, an active sound generating unit, a circuit board, and a battery pack; the active sound generating unit, the circuit board, and the battery pack are all arranged in the receiving cavity of the box body; the active sound generating unit and the battery pack are both electrically connected to the circuit board; it is characterized in that, A diaphragm is provided on the box body. The inner wall of the diaphragm communicates with the accommodation cavity of the box body, and a counterweight is magnetically connected to the outer wall of the diaphragm.

2. The passive radiator speaker with replaceable counterweights according to claim 1, characterized in that, A first magnetic attracting member is inlaid on the outer wall of the diaphragm, and a second magnetic attracting member is inlaid on the inner wall of the counterweight close to the diaphragm. The first magnetic attracting member is magnetically connected to the second magnetic attracting member.

3. The passive radiator speaker with replaceable counterweight according to claim 2, characterized in that Both the first magnetic attracting member and the second magnetic attracting member are magnets; or the first magnetic attracting member is a magnet and the second magnetic attracting member is a hardware member; or the first magnetic attracting member is a hardware member and the second magnetic attracting member is a magnet.

4. The passive radiator speaker with replaceable counterweights according to claim 1, characterized in that, A weight identifier for displaying the own weight of the counterweight is provided on the outer wall of the counterweight.

5. The passive radiator speaker with replaceable counterweight according to claim 1, wherein A music identifier for displaying the music type adapted to the counterweight is provided on the outer wall of the counterweight.

6. The passive radiator speaker with replaceable counterweights according to claim 5, wherein The box body includes an inner container made of a light-transmitting material and a metal outer shell; the metal outer shell sleeves the inner container; a diaphragm hole communicating with the accommodation cavity is formed on the inner container, and the edge of the diaphragm is hermetically arranged on the diaphragm hole; a counterweight hole corresponding to the diaphragm hole is formed on the metal outer shell, and there is a light-transmitting gap between the edge of the counterweight and the inner wall of the counterweight hole; a light-emitting chip board is arranged in the accommodation cavity of the box body, and the light emitted by the light-emitting chip board is transmitted to the outside of the box body in a side-emitting manner through the light-transmitting gap; the light-emitting chip board is electrically connected to the circuit board.

7. The passive radiator speaker with replaceable counterweights according to claim 6, characterized in that, The diaphragm includes a transparent folding ring part and an adhesive part arranged inside the folding ring part. The counterweight has a foggy area and a highly transparent area, and the highly transparent area forms a brand identifier.

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