CN214505189U - Transformer for loudspeaker and loudspeaker - Google Patents

Abstract

The utility model provides a transformer and speaker for speaker, this transformer comprise skeleton, magnetic core and coil, and the magnetic core is whole to be the annular, and skeleton and magnetic core are located the annular, and the magnetic core is supported at the skeleton both ends, middle part coiling coil, and skeleton's one end extends certain width to both sides and forms the installation department, and the transformer passes through this installation department during use and installs in the shell of speaker. The utility model designs a brand-new framework structure form of the transformer, does not need to add an additional installation frame outside, and has more convenient installation and more reasonable structure; further with the fixed speaker of the posture of magnetic core in with local embedding to the skeleton space of speaker unit, the whole mounting means is compacter, more saves the inner space, overall structure is smaller and more exquisite.

Description

Transformer for loudspeaker and loudspeaker

Technical Field

The utility model relates to a speaker technical field specifically is a transformer and speaker for speaker, can be used to the fire control.

Background

Loudspeakers are transducers that convert electrical signals into acoustic signals, and are of a wide variety and widely varying in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.

In the fire emergency broadcasting system, a loudspeaker is a very important part, and emergency state information and evacuation conditions need to be broadcasted through the loudspeaker.

The loudspeaker mainly comprises a loudspeaker unit (main sound production unit), a transformer and a detection board, wherein the detection board is matched with a broadcasting system to detect the fault information of the loudspeaker, and if the loudspeaker is short-circuited or broken, the broadcasting can be detected.

The existing loudspeaker shell is complex in internal structure, particularly the transformer needs to be firmly installed in the shell, and an independent installation part, such as a metal installation frame, needs to be additionally arranged, so that the structure is complex and the installation is inconvenient. Therefore, there is a need for improvement of the internal structure of the existing speaker, especially the structure and installation manner of the transformer, to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies of the prior art, the object of the present invention is to provide a speaker, which is more convenient to install, has a compact inner structure, and can save the manufacturing cost.

The technical scheme of the utility model as follows:

the utility model discloses at first provide a transformer for speaker comprises skeleton transformer, magnetic core and coil, and the magnetic core is whole to be the annular, and skeleton transformer and coil are located the annular, and the magnetic core is supported at the skeleton transformer both ends, middle part coiling, skeleton transformer's one end extends certain width to both sides and forms the installation department, during the use the transformer is installed in the shell of speaker through this installation department.

Preferably, the vertical face of the transformer framework is integrally I-shaped, the lower part of the I-shaped structure protrudes towards two sides relative to the upper part to form the mounting part, and mounting holes are formed in the mounting parts on the two sides.

Preferably, the lower plane of the I-shaped structure is an isosceles trapezoid, and the two mounting holes are symmetrically formed in the corners of the lower bottom and the waist of the isosceles trapezoid.

Preferably, the plane of the upper part of the I shape is square, one side of the square is provided with a wire outlet hole, and when the coil is used, the coil is connected with a detection plate after being led out from the wire outlet hole.

The utility model provides a loudspeaker, this loudspeaker have the shell, install speaker unit and transformer in the shell, and the transformer is aforementioned transformer for the loudspeaker, and this transformer passes through the installation department is installed in the shell.

Preferably, two mounting columns are arranged in the shell, and the mounting part penetrates through the mounting hole through a screw to be fixed on the mounting columns.

Preferably, the speaker unit has a bobbin space, and the magnetic core is partially inserted into the bobbin space of the speaker unit in the mounted state of the transformer.

Preferably, the housing is provided with a sealing ring in the rear of the housing.

Preferably, the seal ring and the shell are integrally formed by injection molding.

Preferably, the loudspeaker is a wall-mounted loudspeaker, a ceiling-mounted loudspeaker or an open-mounted loudspeaker for fire fighting.

The utility model discloses beneficial effect for prior art is: the utility model provides a transformer and speaker for speaker, which designs a brand-new transformer framework structure form for the transformer, directly fixes the transformer by means of the transformer framework, does not need to add extra installation frame outside, and has more convenient installation and more reasonable structure; further with the fixed speaker of the posture of magnetic core in with local embedding to the skeleton space of speaker unit, the whole mounting means is compacter, more saves the inner space, overall structure is smaller and more exquisite.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of an overall structure of a transformer according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a transformer;

FIG. 3 is a schematic diagram of a transformer bobbin structure;

FIG. 4 is a schematic top view of a transformer bobbin;

fig. 5 is a schematic view of the internal structure layout of the speaker according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along line 1-1 of FIG. 5;

fig. 7 is a top view of a speaker unit according to an embodiment of the present invention;

fig. 8 is a side view of the speaker unit.

The meaning of the individual reference symbols in the figures is:

100-transformer, 101-transformer skeleton, 102-magnetic core, 103-coil, 104-mounting part, 105-mounting hole, 106-outlet hole, 200-shell, 201-mounting column, 202-screw, 203-sealing ring, 300-loudspeaker unit, 301-skeleton gap and 400-detection plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

In the present invention, the terms "comprises/comprising," "consisting of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship illustrated in the drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device, component, or structure so referred to must have a particular orientation, be constructed in a particular orientation, or be operated in a particular manner, and should not be considered limiting of the invention.

Referring to fig. 1-4, transformer 100, mainly used speaker comprises skeleton 101, magnetic core 102 and coil 103, and magnetic core 102 adopts the silicon steel sheet, wholly is the annular, and skeleton 101 and coil 103 are located the annular, and skeleton 101 both ends support magnetic core 102, and middle part coiling coil 103, the one end of skeleton 101 extend certain width to both sides and form installation department 104, the utility model discloses in extend outstanding partly to both sides to the direction of keeping away from the magnetic core promptly, outstanding portion or enlarged part form installation department 104 promptly, transformer 100 installs in the shell of speaker through this installation department 104 during the use, as shown in fig. 5.

The utility model discloses an above structure has designed brand-new transformer skeleton structural style, when installing the transformer in the shell of speaker, directly with the help of transformer skeleton fixed transformer can, do not need the outside extra installation frame that increases again for it is more convenient to install, and the structure is more reasonable, and inner structure is compacter, also can reduce cost to a certain extent.

Referring to fig. 3 and 4, the transformer framework 101 is integrally h-shaped in elevation, the lower part of the h-shape protrudes to two sides relative to the upper part to form the mounting part 104, the mounting parts on the two sides are provided with mounting holes 105, and when in use, screws penetrate through the mounting holes 105 to fix the transformer in the loudspeaker shell. The lower part of the I-shaped transformer framework extends towards two sides, the structure of the original transformer framework is not excessively increased or changed, a stable installation structure can be formed, and the whole transformer structure can be firmly installed by means of installation and fixation of the protruding parts or the enlarged parts on two sides of the I-shaped lower bottom.

In one example, the lower plane of the i-shape is an isosceles trapezoid, and the two mounting holes 105 are symmetrically formed at the corners of the bottom and the waist of the isosceles trapezoid.

The upper portion plane of I-shaped is squarely, and square one side is provided with wire hole 106, and a pick-up plate 400 is connected after coil 103 is qualified for the next round of competitions from wire hole 106 during the use, as shown in fig. 5, 6, the utility model discloses square plane in the upper portion of I-shaped is provided with four wire holes 106, is qualified for the next round of competitions from these four wire holes after the coil winding, then with pick-up plate welded connection, the pick-up plate is used for detecting speaker fault information.

With continued reference to fig. 5, based on the aforementioned transformer 100, the present invention further provides a speaker having a housing 200, a speaker unit 300 and a transformer 100 are installed in the housing 200, and the transformer 100 is installed in the housing 200 through an installation part 104. The installation part 104 of the transformer 100 is fixedly installed in the existing loudspeaker shell, so that the structure and the installation mode of the original transformer are simplified, the structural arrangement in the loudspeaker is more compact, and the installation is simpler and more convenient.

Referring to fig. 6, two mounting posts 201 are disposed in the housing 200, the mounting posts 201 are disposed perpendicular to the housing, the mounting posts 201 have through holes along the axial direction, and screws 202 pass through the mounting holes 105 of the mounting portion 104 and then extend into the through holes of the mounting posts 201, so as to fix the mounting portion 104 on the mounting posts 201, and thus fix the entire transformer 100 in the housing, as shown in fig. 5.

With continued reference to fig. 7 and 8, the speaker unit 300 has a bobbin air gap 301, and in the mounted state of the transformer 100, the magnetic core 102 of the transformer is partially inserted into the bobbin air gap 301 of the speaker unit, as shown in fig. 5 and 6. The utility model discloses when arranging and installing the inner structure of speaker, further with the magnetic core with the fixed speaker of gesture of local embedding in the skeleton space of speaker unit, the integral erection mode is compacter, more saves the inner space, so can make the shell of speaker do littleer, thinner, overall structure is more small and exquisite.

Referring to fig. 6 again, the rear portion of the inside of the housing 200 of the present invention is further provided with a sealing ring 203, and the sealing ring 203 and the housing 200 are integrally formed by injection molding. The sealing ring 203 plays a role of gathering sound, so that the sound is diffused to the outer ring as little as possible, more sound is emitted from the front, and the sound volume is larger under the condition of the same power.

The loudspeaker of the utility model can be designed as a fire-fighting wall-mounted loudspeaker according to actual needs, and the back of the shell is provided with a wall hanging hole; or the fire-fighting ceiling type loudspeaker is embedded into the ceiling, and the front panel of the loudspeaker is almost flush with the ceiling; or the fire-fighting surface-mounted loudspeaker is directly mounted on a roof, and the whole loudspeaker body is exposed outside. The utility model discloses a speaker structure is general, can design for different installation form according to actual conditions, can be used to the fire control occasion, also can be applied to other scenes certainly.

Thus, it should be understood by those skilled in the art that while exemplary embodiments of the present invention have been illustrated and described in detail herein, many other variations and modifications can be made in accordance with the principles of the present invention without departing from the spirit and scope of the invention, which is to be determined directly from the disclosure of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. The utility model provides a transformer for speaker comprises skeleton, magnetic core and coil, and the magnetic core is whole to be the annular, and skeleton and coil are located the annular, and the magnetic core is supported at the skeleton both ends, middle part coiling coil, its characterized in that: one end of the transformer framework extends to two sides for a certain width to form an installation part, and when the loudspeaker is used, the transformer is installed in a shell of the loudspeaker through the installation part.

2. The transformer for speaker of claim 1, wherein the transformer bobbin has an i-shaped vertical surface, the mounting portion is formed by protruding the lower portion of the i-shaped vertical surface to both sides of the upper portion, and the mounting portions on both sides are provided with mounting holes.

3. The transformer for speaker as claimed in claim 2, wherein said i-shaped lower plane is an isosceles trapezoid, and two mounting holes are symmetrically formed at the corners of the lower base and the waist of the isosceles trapezoid.

4. The transformer for loudspeaker of claim 2, wherein the upper plane of said i-shape is square, one side of the square is provided with an outlet hole, and the coil is connected to a detecting plate after being led out from the outlet hole in use.

5. A speaker having a housing in which a speaker unit and a transformer are mounted, characterized in that: the transformer for a speaker according to any one of claims 1 to 4, wherein the transformer is mounted in the housing through the mounting portion.

6. The loudspeaker of claim 5 wherein two mounting posts are provided in the housing, the mounting portion being secured to the mounting posts by screws passing through the mounting holes.

7. The loudspeaker of claim 5, wherein the loudspeaker unit has a skeletal void, and wherein the magnetic core is partially embedded within the skeletal void of the loudspeaker unit in the installed state of the transformer.

8. A loudspeaker according to claim 5, wherein the enclosure is provided with a sealing ring in a rear portion of the enclosure.

9. The loudspeaker of claim 8 wherein the gasket is integrally injection molded with the housing.

10. The speaker of any one of claims 5-9, wherein the speaker is a fire wall, ceiling, or surface mounted speaker.

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