Independent dual magnetic circuit driver speakers

Abstract

The utility model discloses an independent dual-magnetic circuit driving loudspeaker, comprising a diaphragm and a bracket, and also comprising two driving sources. Two driving mounting holes are relatively arranged on the bottom of the inner groove of the bracket, a diaphragm is fixed on the top surface of the bracket so as to close the groove surface of the inner groove, the driving source is installed in the driving mounting hole, and the edge of the paper support of the driving source is fixed to the diaphragm. The utility model redesigns the bracket and arranges two driving sources on one bracket. The diaphragm is vibrated by synchronously driving the diaphragm at different positions of the diaphragm by the two driving sources, thereby greatly reducing the distance between the edge of the diaphragm and the driving source, which not only increases the speaker's bearing power and output sound power, but also reduces the probability of resonance caused by unbalanced vibration.

Description

Technical Field

[0001] The utility model relates to a loudspeaker, in particular to an independent double-magnetic circuit driven loudspeaker. Background Art

[0002] The diaphragms of ordinary speakers are generally round, but with the development of society, consumers have higher and higher requirements for speakers, so some speakers with unconventional shapes have appeared. Therefore, the structure of the speaker is matched with the shape of the speaker.

[0003] For example, in a current rectangular speaker, the diaphragm is preferably in the shape of an elongated racetrack, and the driving source is located at the center of the diaphragm. However, because the diaphragm is relatively long, the diaphragm is not rigid enough, which easily leads to vibration imbalance, resulting in resonance sound, especially when the power is high.

[0004] The conventional design of this structure has defects and cannot meet the current consumer demand for good sound. The applicant has designed an independent dual-magnetic circuit drive speaker to solve the problem based on the characteristics of the rectangular speaker. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an independent dual-magnetic circuit driving loudspeaker.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] An independent dual-magnetic circuit drive speaker includes a diaphragm and a bracket, characterized in that it also includes two drive sources, two drive mounting holes are arranged opposite to each other on the bottom of the inner groove of the bracket, a diaphragm is fixed on the top surface of the bracket to close the groove surface of the inner groove, the drive source is installed in the drive mounting hole, and the edge of the paper support of the drive source is fixed to the diaphragm.

[0008] The spring wave of the driving source is fixed to the bracket.

[0009] A mounting boss is provided on the bottom of the inner groove, and the elastic wave is bonded to the top surface of the mounting boss.

[0010] The top surface of the boss is provided with a positioning rib.

[0011] A positioning convex ring is provided on the inner wall of the drive mounting hole, and the end surface of the U cup of the drive source can abut against the positioning convex ring.

[0012] The top surface of the bracket is provided with a positioning installation groove which penetrates the notch of the inner groove.

[0013] A circuit installation groove is provided at the bottom of the groove, the circuit board is located in the circuit installation groove, and the circuit installation groove is located between the two drive installation holes.

[0014] The drive mounting holes are symmetrically arranged relative to the center of the diaphragm, and the distance between the two drive mounting holes is half the length of the diaphragm.

[0015] The beneficial effect of the utility model is as follows: the utility model redesigns the bracket and arranges two driving sources on one bracket, and synchronously drives the diaphragm to vibrate at different positions of the diaphragm through the two driving sources, thereby greatly reducing the distance between the edge of the diaphragm and the driving source, which not only increases the speaker's bearing power and output sound power, but also reduces the probability of resonance caused by unbalanced vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural diagram of the utility model in another direction;

[0019] Figure 3 It is a cross-sectional structural diagram of the utility model;

[0020] Figure 4 is a structural diagram of the bracket;

[0021] Figure 5 This is a structural diagram of the bracket in another direction. DETAILED DESCRIPTION

[0022] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0023] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0024] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0025] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0026] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0027] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0028] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0029] Reference Figures 1 to 5 The utility model discloses an independent dual-magnetic circuit driving loudspeaker, including a diaphragm 1 and a bracket 2. The bracket 2 of the present application is rectangular, and the diaphragm 1 is in the shape of an elongated runway. Because the two ends of the diaphragm 1 should avoid sharp points, it is composed of two semicircles. The vibration body of the diaphragm 1 is preferably a carbon fiber plate, and the overlap around the edge is preferably rubber. It also includes two driving sources 5. The driving source 5 is a conventional structure, so its principle and specific structure are not described in detail.

[0030] As shown in the figure, two drive mounting holes 3 are relatively arranged on the bottom of the inner groove of the bracket 2. Of course, in order to save materials and reduce weight, a number of hollow holes are provided on the bottom of the groove next to the drive mounting holes 3. The top surface of the bracket 2 is fixed with a diaphragm 1 to close the groove surface of the inner groove. The diaphragm 1 is fixed on the top surface by overlapping and bonding with glue. As a further structure, the top surface of the bracket 2 is provided with a positioning mounting groove 4 that passes through the groove of the inner groove. The groove wall on one side of the positioning mounting groove 4 can position the overlapping installation and can block the glue, thereby ensuring that the glue is sufficient and uniform when the overlapping edge is bonded to the positioning mounting groove 4, so that the bonding is more firm and the sealing is better.

[0031] As shown in the figure, the driving source 5 is installed in the driving installation hole 3, and the edge of the paper support 6 of the driving source 5 is bonded and fixed to the diaphragm 1 by glue, and the spring wave 7 of the driving source 5 is bonded and fixed to the bracket 2 by glue. Of course, some driving sources 5 may not have spring waves 7. As a further structure, a mounting boss 8 is provided on the bottom of the inner groove, and the spring wave 7 is bonded to the top surface of the mounting boss 8, so that the spring wave 7 can be suspended to avoid contact with the bracket 2, thereby ensuring that when the voice coil is subjected to force, the vibration system reciprocates along the axial direction. Of course, the top surface of the boss is provided with a positioning rib 9, which is used for positioning during installation to facilitate assembly.

[0032] As shown in the figure, a positioning convex ring 10 is provided on the inner wall of the drive mounting hole 3 , and the end surface of the U cup 12 of the drive source 5 can abut against the positioning convex ring 10 . The above structure can limit the axial movement of the drive source 5 .

[0033] As shown in the figure, a circuit installation groove 11 is provided at the bottom of the groove, and the circuit board is located in the circuit installation groove 11. The circuit installation groove 11 is located between the two drive installation holes 3, so the distance from the two drive sources 5 is the shortest, which not only saves wires but also saves space. The present application adopts a terminal plug-in method for connection, which is also convenient for assembly.

[0034] As shown in the figure, the driving mounting hole 3 of the present application is symmetrically arranged relative to the center of the diaphragm 1, and the distance between the two driving mounting holes 3 is half of the length of the diaphragm 1, so the two driving sources 5 are also symmetrically arranged relative to the center of the diaphragm 1, and the distance between the two is half of the length of the diaphragm 1. We take advantage of the geometric division and divide the entire vibration surface into two equal parts in the length direction. The vibration surface can be equivalent to the length of the diaphragm 1. The center of gravity is re-found in the new division. The regular geometry is at the center position. This position is the positioning center of the new driving source 5, thereby reducing the length of the edge of the vibration surface from the center of the driving source 5, thereby also reducing the impact of vibration imbalance brought by the entire vibration system.

[0035] An independent dual-magnetic circuit drive speaker provided by an embodiment of the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. An independent dual-magnetic circuit driving loudspeaker, comprising a diaphragm and a bracket, characterized in that: It also includes two driving sources, two driving mounting holes are arranged opposite to each other on the bottom of the inner groove of the bracket, a diaphragm is fixed on the top surface of the bracket to close the groove surface of the inner groove, the driving source is installed in the driving mounting hole, and the edge of the paper support of the driving source is fixed to the diaphragm.

2. The independent dual magnetic circuit driving speaker according to claim 1, characterized in that: The spring wave of the driving source is fixed to the bracket.

3. The independent dual magnetic circuit driving speaker according to claim 2, characterized in that: A mounting boss is provided on the bottom of the inner groove, and the elastic wave is bonded to the top surface of the mounting boss.

4. The independent dual magnetic circuit driving speaker according to claim 3, characterized in that: The top surface of the boss is provided with a positioning rib.

5. The independent dual magnetic circuit driving speaker according to claim 1, characterized in that: A positioning convex ring is provided on the inner wall of the drive mounting hole, and the end surface of the U cup of the drive source can abut against the positioning convex ring.

6. The independent dual magnetic circuit driving speaker according to claim 1, characterized in that: The top surface of the bracket is provided with a positioning installation groove which penetrates the notch of the inner groove.

7. The independent dual magnetic circuit driving loudspeaker according to claim 1, characterized in that: A circuit installation groove is provided at the bottom of the groove, the circuit board is located in the circuit installation groove, and the circuit installation groove is located between the two drive installation holes.

8. The independent dual magnetic circuit driving loudspeaker according to claim 1, characterized in that: The drive mounting holes are symmetrically arranged relative to the center of the diaphragm, and the distance between the two drive mounting holes is half the length of the diaphragm.

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