Bidirectional sound box

Abstract

The utility model discloses a bidirectional sound box, relates to the technical field of sound boxes, and solves the technical problem that a sound box in the prior art is easy to generate a squeal phenomenon. The bidirectional sound box comprises: a housing having two adjacent mounting plates, namely a first mounting plate and a second mounting plate, an included angle alpha being formed between the first mounting plate and the second mounting plate; the number of the loudspeaker groups is at least two, and the at least two loudspeaker groups are respectively mounted on the first mounting plate and the second mounting plate; the active module is arranged in the shell; and the external connection part is mounted on the shell, and the external connection part is used for mounting the shell on a foreign object. Therefore, through the arrangement of the included angle alpha between the first mounting plate and the second mounting plate, the directions of the loudspeaker groups mounted on the first mounting plate and the second mounting plate are different, so that sounds do not interfere with each other and do not directly align to a microphone; therefore, the bidirectional sound box provided by the utility model effectively reduces the probability of squeal, and is stronger in applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound boxes, and in particular relates to a two-way sound box. Background Art

[0002] A speaker is a device that can convert audio signals into sound. In a modern corporate office environment, conference room speaker equipment is an indispensable part. A high-quality conference room sound system can provide clear and smooth audio effects for meetings, thereby improving communication efficiency and decision-making quality. Among the many conference room speaker devices, ceiling speakers and column speakers are two common types. Ceiling speakers are speaker devices installed on the ceiling of a conference room. Their main features are that they are small and beautiful in appearance and do not occupy floor space; column speakers are upright speaker devices. Column speakers usually adopt a dual-channel design, which can achieve a clearer stereo effect, which is conducive to improving the pertinence and effectiveness of conference discussions.

[0003] However, when the microphone volume is increased during use, the sound from the speaker is transmitted to the microphone and then emitted again through the speaker, which will cause howling. The occurrence of howling not only affects the sound quality, limits the volume expansion of the microphone sound, but also makes the sound picked up by the microphone unable to be reproduced well. Utility Model Content

[0004] The utility model provides a two-way sound box, which is used to solve the technical problem that the sound box in the prior art is prone to howling.

[0005] The utility model is realized through the following technical solutions:

[0006] A two-way speaker, comprising:

[0007] The housing has two adjacent mounting plates, namely a first mounting plate and a second mounting plate, and an angle α is formed between the first mounting plate and the second mounting plate;

[0008] Speaker groups, at least two groups, at least two of which are mounted on the first mounting plate and the second mounting plate respectively;

[0009] An active module is installed in the housing;

[0010] The external connection part is installed on the shell, and the external connection part is used to install the shell on an external object.

[0011] Furthermore, the value range of the angle α is: 30°≤α<90°.

[0012] Furthermore, the speaker group includes:

[0013] Subwoofer;

[0014] The first tweeter and the woofer can both be detachably mounted on the same mounting plate.

[0015] Furthermore, a passive radiator is further included and is detachably mounted on the mounting plate.

[0016] Furthermore, the woofer, the first tweeter, and the passive radiator are all connected to the mounting plate by bolts.

[0017] Furthermore, a second tweeter is further included. The housing includes a third mounting plate which is adjacent to the first mounting plate and the second mounting plate respectively, and there is an included angle β between the third mounting plate and the horizontal plane. The second tweeter is mounted on the third mounting plate.

[0018] Furthermore, the value range of the included angle β is: 30° ≤ β < 90°.

[0019] Furthermore, the external connection part includes:

[0020] A U-shaped block which is detachably mounted on the housing, and a chute is provided on the side of the U-shaped block opposite to the housing;

[0021] A hook which is detachably mounted on the external object in the working state, and one end of the hook is slidably inserted into the chute.

[0022] Furthermore, the number of the U-shaped blocks and the hooks is multiple, and the multiple U-shaped blocks and the multiple hooks are arranged in one-to-one correspondence.

[0023] Furthermore, a signal interface, a parallel connection interface, and a debugging interface are provided on the housing.

[0024] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0025] The two-way sound box provided by the utility model comprises a shell, a speaker group, an active module and an external connection part. The shell has two adjacent mounting plates, which are a first mounting plate and a second mounting plate respectively. An angle α is formed between the first mounting plate and the second mounting plate. The number of speaker groups is at least two, and at least two speaker groups are respectively mounted on the first mounting plate and the second mounting plate. The active module is mounted in the shell, and the external connection part is mounted on the shell. The external connection part is used to mount the shell on an external object. Through the above structure, when the two-way speaker provided by the utility model is used, the angle α between the first mounting plate and the second mounting plate is set so that the speaker groups installed on the first mounting plate and the second mounting plate are oriented in different directions, so that the sounds do not interfere with each other and are not directly aimed at the microphone, thereby effectively reducing the probability of howling. The speaker group is used to process audio signals. The setting of the active module allows the two-way speaker provided by the utility model to complete the frequency division, gain addition and subtraction, and sound effect adjustment without connecting other peripherals. The setting of the external connection part makes it easier to disassemble and assemble the two-way speaker provided by the utility model. Therefore, through the setting of the angle α between the first mounting plate and the second mounting plate, the two-way speaker provided by the utility model effectively reduces the probability of howling and has stronger applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0027] Figure 1 A schematic diagram of the structure of a two-way speaker provided by an embodiment of the utility model;

[0028] Figure 2 Another structural schematic diagram of a two-way speaker provided by an embodiment of the utility model;

[0029] Figure 3 Another structural schematic diagram of a two-way speaker provided by an embodiment of the utility model;

[0030] Figure 4 Another structural schematic diagram of a two-way speaker provided by an embodiment of the utility model;

[0031] Figure 5 This is a schematic structural diagram of an external connection part provided in an embodiment of the utility model.

[0032] Marks and corresponding parts names in the attached drawings:

[0033] 1 - Housing, 11 - First mounting plate, 12 - Second mounting plate, 13 - Third mounting plate, 2 - Speaker group, 21 - Woofer, 22 - First tweeter, 23 - Passive radiator, 3 - Active module, 4 - External part, 41 - C-shaped block, 411 - Slide groove, 42 - Hook, 5 - Second tweeter, 6 - Signal interface, 7 - Parallel connection interface, 8 - Debugging interface. Detailed implementation

[0034] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in combination with embodiments and drawings. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model.

[0035] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0036] It should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying 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. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0038] Embodiment:

[0039] This embodiment provides a two-way speaker, which is used to solve the technical problem that the speaker in the prior art is prone to whistling. The two-way speaker includes a housing 1, a speaker group 2, an active module 3 and an external part 4, wherein:

[0040] The shell 1 has two adjacent mounting plates, namely a first mounting plate 11 and a second mounting plate 12. There is an angle α between the first mounting plate 11 and the second mounting plate 12. Specifically, the shell 1 is composed of two triangular plates and three quadrilateral plates. The three quadrilateral plates are connected end to end in sequence to form a hollow cylinder. The two triangular plates are respectively installed at the top and bottom of the hollow cylinder to form a closed hollow cylinder. Any two of the three quadrilateral plates are the first mounting plate 11 and the second mounting plate 12.

[0041] The number of speaker groups 2 is at least two, and at least two speaker groups 2 are respectively mounted on the first mounting plate 11 and the second mounting plate 12. In this way, by setting the angle α between the first mounting plate 11 and the second mounting plate 12, the speaker groups 2 mounted on the first mounting plate 11 and the second mounting plate 12 are oriented in different directions, so that the sounds they emit do not interfere with each other and will not be directly aimed at the microphone, thereby achieving the purpose of reducing the probability of howling.

[0042] The active module 3 is installed in the housing 1 .

[0043] The external part 4 is installed on the shell 1, and the external part 4 is used to install the shell 1 on an external object. In this way, through the setting of the external part 4, it is easier to install the two-way speaker provided by the utility model embodiment on an external object, or remove it from the external object.

[0044] Through the above structure, when using the two-way speaker provided by the utility model, the angle α between the first mounting plate 11 and the second mounting plate 12 is set so that the speaker groups 2 installed on the first mounting plate 11 and the second mounting plate 12 are oriented in different directions, so that the sounds do not interfere with each other and are not directly aimed at the microphone, thereby effectively reducing the probability of howling. The speaker group 2 is used to process audio signals. The setting of the active module 3 allows the two-way speaker provided by the utility model to complete the frequency division, gain addition and subtraction, and sound effect adjustment without connecting other peripherals. The setting of the external connection part 4 makes it easier to disassemble and assemble the two-way speaker provided by the utility model. Therefore, through the setting of the angle α between the first mounting plate 11 and the second mounting plate 12, the two-way speaker provided by the utility model effectively reduces the probability of howling and has stronger applicability.

[0045] An optional implementation of the present embodiment is as follows: the value range of the angle α is: 30°≤α<90°, and exemplary angles α may be 30°, 40°, 50°, 60°, 70° and 80°, etc. Angles that are too small or too large will result in insufficient space inside the shell 1, making it impossible to install other parts.

[0046] An alternative implementation of this embodiment is as follows: The speaker group 2 includes a woofer 21 and a first tweeter 22, where:

[0047] The woofer 21 is used to process low-frequency audio signals.

[0048] The first tweeter 22 is used to process high-frequency audio signals. Both the first tweeter 22 and the woofer 21 can be detachably mounted on the same mounting plate, that is, the same set of speaker group 2 is mounted on the same mounting plate. In this way, the first tweeter 22 and the woofer 21 that are detachably mounted are more convenient for maintenance and replacement.

[0049] Optionally, it further includes a passive radiator 23, which is detachably mounted on the mounting plate. By providing the passive radiator 23, the low-frequency response is increased and the bass output is expanded.

[0050] Optionally, the woofer 21, the first tweeter 22, and the passive radiator 23 are all connected to the mounting plate by bolts.

[0051] An alternative implementation of this embodiment is as follows: It further includes a second tweeter 5. The housing 1 includes a third mounting plate 13. The third mounting plate 13 is adjacent to the first mounting plate 11 and the second mounting plate 12 respectively, and there is an angle β between the third mounting plate 13 and the horizontal plane. The second tweeter 5 is mounted on the third mounting plate 13. By providing the second tweeter 5, high-frequency compensation is performed, the high-frequency directivity is enhanced, and delicate highs can be obtained at multiple positions.

[0052] Optionally, the value range of the angle β is: 30° ≤ β < 90°.

[0053] An alternative implementation of this embodiment is as follows: The external part 4 includes a C-shaped frame and a hook 42, where:

[0054] The C-shaped block 41 is detachably mounted on the housing 1. A chute 411 is provided on the side of the C-shaped block 41 opposite to the housing 1. Specifically, the C-shaped block 41 includes a top plate and two side plates. The two side plates are respectively mounted on opposite sides of the top plate, and the two side plates are mounted on the housing 1 by screws. By providing the two side plates, there is a gap between the top plate and the housing 1. In this way, there is a gap between the housing 1 and the external object, which can not only dissipate heat from the speaker but also reduce the probability of whistling.

[0055] The hook 42 is detachably mounted on the external object in the working state, and one end of the hook 42 is slidably inserted into the chute 411 and extends into the gap between the top plate and the housing 1. In this way, by providing the hook 42 and the C-shaped block 41, it is more convenient to install and拆卸 the speaker.

[0056] Optionally, there are multiple U-shaped blocks 41 and multiple hooks 42, and the multiple U-shaped blocks 41 and multiple hooks 42 are arranged in a one-to-one correspondence. Through the arrangement of multiple U-shaped blocks 41 and multiple hooks 42, the speaker can be installed more stably.

[0057] An optional implementation of the present embodiment is as follows: a signal interface 6, a parallel interface 7 and a debugging interface 8 are provided on the shell 1. In this way, when it is necessary to use two two-way speakers provided by the embodiments of the present invention at the same time, the parallel interface 7 of the main speaker can be connected to the signal interface 6 of the other speaker using a signal line. When multiple speakers need to be connected in parallel, the same can be applied. The setting of the debugging interface 8 facilitates the adjustment of the sound effect.

[0058] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A two-way speaker, characterized in that: Comprising: A housing (1) having two adjacent mounting plates, namely a first mounting plate (11) and a second mounting plate (12), with an included angle α between the first mounting plate (11) and the second mounting plate (12); A speaker group (2), with at least two groups, and at least two groups of the speaker group (2) are respectively mounted on the first mounting plate (11) and the second mounting plate (12); An active module (3) mounted inside the housing (1); An external connection part (4) mounted on the housing (1), and the external connection part (4) is used to mount the housing (1) on an external object.

2. A two-way speaker according to claim 1, characterized in that: The value range of the included angle α is: 30° ≤ α < 90°.

3. A two-way speaker according to claim 1, characterized in that: The speaker group (2) includes: A bass speaker (21); A first tweeter (22), both the bass speaker (21) and the first tweeter (22) are detachably mounted on the same mounting plate.

4. A two-way speaker according to claim 3, characterized in that: It further includes a passive radiator (23), which is detachably mounted on the mounting plate.

5. A two-way speaker according to claim 4, characterized in that: The bass speaker (21), the first tweeter (22) and the passive radiator (23) are all connected to the mounting plate by bolts.

6. A two-way speaker according to claim 1, characterized in that: It further includes a second tweeter (5), the housing (1) includes a third mounting plate (13), the third mounting plate (13) is adjacent to the first mounting plate (11) and the second mounting plate (12) respectively, and there is an included angle β between the third mounting plate (13) and the horizontal plane, and the second tweeter (5) is mounted on the third mounting plate (13).

7. A two-way speaker according to claim 6, characterized in that: The value range of the included angle β is: 30° ≤ β < 90°.

8. A two-way speaker according to claim 1, characterized in that: The external connection part (4) includes: A U-shaped block (41), detachably mounted on the housing (1), and a chute (411) is provided on the side of the U-shaped block (41) opposite to the housing (1); A hook (42), which is detachably mounted on the external object in the working state, and one end of the hook (42) is slidably inserted into the chute (411).

9. A two-way speaker according to claim 8, characterized in that: The number of the U-shaped blocks (41) and the hooks (42) is multiple, and multiple U-shaped blocks (41) and multiple hooks (42) are arranged in one-to-one correspondence.

10. A two-way speaker according to any one of claims 1 to 9, characterized in that: A signal interface (6), a parallel connection interface (7) and a debugging interface (8) are provided on the housing (1).

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