CN206775733U - The acoustical generator of magnetic circuit system and the application magnetic circuit system - Google Patents
The acoustical generator of magnetic circuit system and the application magnetic circuit system Download PDFInfo
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- CN206775733U CN206775733U CN201720443929.0U CN201720443929U CN206775733U CN 206775733 U CN206775733 U CN 206775733U CN 201720443929 U CN201720443929 U CN 201720443929U CN 206775733 U CN206775733 U CN 206775733U
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Abstract
The utility model discloses the acoustical generator of a kind of magnetic circuit system and the application magnetic circuit system, wherein, magnetic circuit system includes magnetic conductive part, the magnetic conductive part is provided with centring magnet and side magnet, the magnetic conductive board when being provided with magnet, it is described to be respectively equipped with compensating magnet on the upper surface of magnet and while described on the lower surface of magnet, the side edge section of the compensating magnet is extended at the side edge section of the side magnet, the storage tank of the compensating magnet corresponding with receiving is respectively provided with the magnetic conductive part on the side magnetic conductive board, the structure of the storage tank is adapted with the corresponding compensating magnet.The acoustical generator of magnetic circuit system of the present utility model and the application magnetic circuit system, uniform magnetic flux in magnetic circuit, overall magnetic flux are high.
Description
Technical field
Electroacoustic transformation technology field is the utility model is related to, specifically, is related to a kind of magnetic circuit system and applies the magnetic circuit
The acoustical generator of system.
Background technology
Acoustical generator is indispensable acoustic element in electro-acoustic product, for by the conversion between electric energy and acoustic energy, application
The electro-acoustic product of acoustical generator includes portable phone, laptop computer etc..Acoustical generator includes accessory system, magnetic circuit system and vibration system
System, accessory system include the protecgulum and shell being combined together, and protecgulum and shell are surrounded for accommodating magnetic circuit system and vibration system
The inner chamber of system.Acoustical generator is directly connected to product acoustics as electric energy and the switching device of acoustic energy, its internal magnetic circuit system
The lifting of energy.
In existing acoustical generator, magnetic circuit system includes the magnetic conductive part of bottom, and the magnetic conductive part of bottom is provided with center magnetic
Iron and side magnet, centring magnet are provided with center magnetic conductive board, the magnetic conductive board when being provided with magnet.Be powered vibration sounding after magnetizing
When, by the magnetic flux of magnetic conductive board and magnetic conductive part be everywhere not uniform in magnetic circuit system, such as in the magnetic conductive board of side it is close
The magnetic flux saturation of inner side edge edge, and utilization rate is very low at side edge section, magnetic flux is simultaneously unsaturated；In the same manner, with side
The corresponding magnetic conductive part that magnet coordinates is also and unsaturated close to the magnetic flux of side edge section, thus reduces the whole of magnetic circuit system
Body magnetic flux, it have impact on the overall acoustical behavior of acoustical generator.
Utility model content
First technical problem to be solved in the utility model be：Uniform magnetic flux in a kind of magnetic circuit, overall magnetic are provided
The high magnetic circuit system of flux.
Second technical problem to be solved in the utility model be：A kind of acoustical generator, the magnetic circuit system of this acoustical generator are provided
System uniform magnetic flux, overall magnetic flux is high, and acoustical behavior is good.
To solve above-mentioned first technical problem, the technical solution of the utility model is：
Magnetic circuit system, including magnetic conductive part, the magnetic conductive part are provided with centring magnet and side magnet, on the side magnet
It is described to be respectively equipped with compensating magnet on the upper surface of magnet and while described on the lower surface of magnet provided with side magnetic conductive board, it is described
The side edge section of compensating magnet is extended at the side edge section of the side magnet, on the side magnetic conductive board and the magnetic-conductance portion
The storage tank for accommodating the corresponding compensating magnet, the structure of the storage tank and the corresponding compensation magnetic are respectively provided with part
Iron phase is adapted to.
Preferably, the compensating magnet is slab construction, or is more than inner side edge edge thickness for side edge section thickness
Bulge-structure, and the surface that the compensating magnet is in contact with the side magnet is plane.
Preferably, connected between the inner side edge edge and the side edge section by plane or chamfered transition, or
The inner side edge edge is connected smoothly with the side edge section by cambered surface.
Preferably, connected between the inner side edge edge and the side edge section by least two transition faces, it is described
Transition face includes transition plane, intermediate incline and transition cambered surface.
Preferably, connected between the inner side edge edge and the side edge section by least two transition plane transition
Connect, the thickness at the transition plane in outside is more than the thickness at the transition plane of inner side.
Preferably, between the inner side edge edge and the side edge section by least two intermediate inclines or at least
Two transition cambered surface transition connections, the thickness of the compensating magnet gradually rise from Inside To Outside.
Preferably, at least two different transition face transition are passed through between the inner side edge edge and the side edge section
Connection, compensating magnet correspond to thickness at the intermediate incline or the thickness at the correspondence transition cambered surface from Inside To Outside by
Edge up height.
Preferably, the width of the compensating magnet is less than or equal to the width of the side magnet.
Preferably, the compensating magnet is structure as a whole with the side magnet；Or the compensating magnet and the side magnetic
Iron, which is adhesively fixed, to be integrated.
To solve above-mentioned second technical problem, the technical solution of the utility model is：
Acoustical generator, including magnetic circuit system, the magnetic circuit system are above-mentioned magnetic circuit system.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：
The acoustical generator of magnetic circuit system of the present utility model and the application magnetic circuit system, the outside portion of the upper surface of magnet on side
Compensating magnet is respectively equipped with the outside portion of the lower surface of side magnet, it is weaker to compensate for magnetic field in the magnetic circuit away from centring magnet
Region, the saturation degree of the magnetic flux in magnetic circuit exterior lateral area is improved, make the uniform magnetic flux in magnetic circuit system, improve magnetic circuit system
Overall magnetic flux, and then improve the overall acoustical behavior of acoustical generator.In the utility model, on the magnetic conductive board of side and the magnetic conduction
The storage tank for accommodating the corresponding compensating magnet is respectively provided with part, compensating magnet is contained in corresponding storage tank respectively
Interior, space availability ratio is high, the uniformity of the magnetic flux in magnetic circuit system is improved, while improving the overall magnetic flux of magnetic circuit,
Without increasing space, namely without increasing the overall volume of acoustical generator.
Brief description of the drawings
Fig. 1 is the structural representation of the magnetic circuit system in the utility model；
Fig. 2 is the first compensating magnet in Fig. 1 and the first structural representation of side magnetic conduction plate part；
Fig. 3 is the first compensating magnet in Fig. 1 and second of structural representation of side magnetic conduction plate part；
Fig. 4 is the first compensating magnet in Fig. 1 and the third structural representation of side magnetic conduction plate part；
Fig. 5 is the first compensating magnet in Fig. 1 and the 4th kind of structural representation of side magnetic conduction plate part；
Fig. 6 is the first compensating magnet in Fig. 1 and the 5th kind of structural representation of side magnetic conduction plate part；
Fig. 7 is the first compensating magnet in Fig. 1 and the 6th kind of structural representation of side magnetic conduction plate part；
Fig. 8 is the first compensating magnet in Fig. 1 and the 7th kind of structural representation of side magnetic conduction plate part；
Fig. 9 is the first compensating magnet in Fig. 1 and the 8th kind of structural representation of side magnetic conduction plate part；
Figure 10 is the first compensating magnet in Fig. 1 and the 9th kind of structural representation of side magnetic conduction plate part；
Figure 11 is the first compensating magnet in Fig. 1 and the tenth kind of structural representation of side magnetic conduction plate part；
Figure 12 is the first compensating magnet in Fig. 1 and a kind of the tenth structural representation of side magnetic conduction plate part；
Figure 13 is the first compensating magnet in Fig. 1 and the 12nd kind of structural representation of side magnetic conduction plate part；
Figure 14 is the second compensating magnet in Fig. 1 and the first structural representation of magnetic conductive part part；
Figure 15 is the second compensating magnet in Fig. 1 and second of structural representation of magnetic conductive part part；
Figure 16 is the second compensating magnet in Fig. 1 and the third structural representation of magnetic conductive part part；
Figure 17 is the second compensating magnet in Fig. 1 and the 4th kind of structural representation of magnetic conductive part part；
Figure 18 is the second compensating magnet in Fig. 1 and the 5th kind of structural representation of magnetic conductive part part；
Figure 19 is the second compensating magnet in Fig. 1 and the 6th kind of structural representation of magnetic conductive part part；
Figure 20 is the second compensating magnet in Fig. 1 and the 7th kind of structural representation of magnetic conductive part part；
Figure 21 is the second compensating magnet in Fig. 1 and the 8th kind of structural representation of magnetic conductive part part；
Figure 22 is the second compensating magnet in Fig. 1 and the 9th kind of structural representation of magnetic conductive part part；
Figure 23 is the second compensating magnet in Fig. 1 and the tenth kind of structural representation of magnetic conductive part part；
Figure 24 is the second compensating magnet in Fig. 1 and a kind of the tenth structural representation of magnetic conductive part part；
Figure 25 is the second compensating magnet in Fig. 1 and the 12nd kind of structural representation of magnetic conductive part part；
Figure 26 is the structural representation of the acoustical generator in the utility model；
In figure：1- protecgulums；2- shells；3- sides magnetic conductive board；The storage tanks of 31- first；The compensating magnets of 4- first；41- outer side edges
Edge；42- inner side edges edge；43- transition planes；44- intermediate inclines；45- transition cambered surfaces；5- magnetic conductive parts；51- second is accommodating
Groove；The compensating magnets of 6- second；61- side edge sections；62- inner side edges edge；63- transition planes；64- intermediate inclines；65- transition
Cambered surface；7- sides magnet；8- centring magnets.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
Referring to the drawings 1, magnetic circuit system of the present utility model, including magnetic conductive part 5, magnetic conductive part 5 are provided with centring magnet 8
With side magnet 7, the magnetic conductive board 3 when being provided with magnet 7, side of the side magnet 7 away from centring magnet 8 is defined as its outside, it is close
The side of centring magnet 8 for its inner side, while the upper surface of magnet 7 outside portion and while magnet 7 lower surface outside portion difference
Provided with compensating magnet.The compensating magnet for defining the outside portion of the upper surface of side magnet 7 is the first compensating magnet 4, under side magnet 7
The compensating magnet of the outside portion on surface is the second compensating magnet 6.First compensating magnet 4 and the second compensating magnet 6 are with side magnet 7
Integrative-structure；It can also be the structure being integrated that is adhesively fixed with side magnet 7.The side edge section of compensating magnet extends to side magnetic
At the side edge section of iron 7, alignd with the side edge section of side magnet 7, the width of compensating magnet is less than or equal to side magnet 7
Width.When the width of compensating magnet is less than the width of side magnet 7, the inside edge portion of compensating magnet is located at the interior of side magnet 7
The outside of lateral edge portion, when the width of compensating magnet is equal to the width of side magnet 7, the inner side edge edge of compensating magnet extends to
At the inner side edge edge of side magnet 7.
In order to increase space availability ratio, while on magnetic conductive board 3 close to while magnet 7 outer side surface portion be provided with the first storage tank
31, the shape of the first storage tank 31 is adapted with the shape of the first compensating magnet 4, and the first compensating magnet 4 is contained in side magnetic conductive board 3
On the first storage tank 31 in.Magnetic conductive part 5 is provided with the second storage tank 51 close to the outer side surface portion of side magnet 7, and second holds
The shape for putting groove 51 is adapted with the shape of the second compensating magnet 6, and the second compensating magnet 6 is contained in the second appearance of magnetic conductive part 5
Put in groove 51.The magnetic circuit system of such a structure, do not increase magnetic circuit system and application the magnetic circuit system electro-acoustic product it is whole
In the case of body volume, on side, the lower surface outside portion of magnet 7 and upper surface outside portion increase compensating magnet respectively, improve magnetic
The uniformity of magnetic flux in the system of road, the overall magnetic flux of magnetic circuit is improved, improve the overall acoustical behavior of acoustical generator.
Referring to figs. 1 to Figure 25, compensating magnet is slab construction, or is more than inner side edge edge thickness for side edge section thickness
The bulge-structure of degree, and the surface that compensating magnet is in contact with side magnet 7 is plane.
It is overall plane between inner side edge edge and side edge section when compensating magnet is slab construction.Work as compensation
When magnet is bulge-structure, it can be connected between inner side edge edge and side edge section by the chamfered transition of entirety, or inner side
Edge part is connected smoothly with side edge section by the cambered surface of entirety, and the thickness of compensating magnet is gradual from Inside To Outside
Rise.
Compensating magnet can also take following structure：By at least between the inner side edge edge of compensating magnet and side edge section
Two transition face connections, transition face include transition plane, intermediate incline and transition cambered surface.Such as：The inside edge of compensating magnet
Connected between portion and side edge section by least two transition plane transition, the thickness at the transition plane in outside is more than inner side
Transition plane at thickness；Either between inner side edge edge and side edge section by least two intermediate inclines or at least
Two transition cambered surface transition connections, the thickness of compensating magnet gradually rise from Inside To Outside；Or inner side edge edge and outside
Connected between edge part by least two different transition face transition, compensating magnet corresponds to thickness at intermediate incline or correspondingly
Thickness at transition cambered surface gradually rises from Inside To Outside.
Reference picture 2, the first compensating magnet 4 can take structure in detail below：The table of side edge section 41 of first compensating magnet 4
Connected between face and the surface of inner side edge edge 42 by the chamfered transition of entirety, and inclined-plane gradually prolongs upwards from Inside To Outside
Stretch, the thickness of compensating magnet is gradually risen from Inside To Outside, form the bulge-structure that side edge section 42 raises up.Phase
It is corresponding, while magnetic conductor 3 close to while magnet 7 surface on the bottom surface of the first storage tank 31 be in inclined-plane, with the first compensating magnet 4
Shape be adapted, it is gradually thinning from Inside To Outside at corresponding first storage tank 31 of side magnetic conductor 3.The outside of side magnetic conductor 3
The side edge section of edge part and the first compensating magnet 4 is flush.The side edge section 41 of first compensating magnet 4 extends to side magnetic
At the side edge section of iron 7, the inner side edge edge 42 of the first compensating magnet 4 is located at the outside of the inner side edge edge of side magnet 7.The
The width of one compensating magnet 4 is less than the width of side magnet 7.
Reference picture 3, Fig. 7 and Fig. 8, the first compensating magnet 4 can take structure in detail below：Outside first compensating magnet 4
Connected between the surface of lateral edge portion 41 and the surface of inner side edge edge 42 by the cambered surface transition of entirety, and cambered surface is from Inside To Outside
Gradually upwardly extend, the thickness of the first compensating magnet 4 is gradually risen from Inside To Outside, it is convex to form side edge section 41
The bulge-structure risen.It is corresponding, while magnetic conductor 3 close to while magnet 7 surface on the bottom surface of the first storage tank 31 be in cambered surface,
It is adapted with the shape of the first compensating magnet 4, it is gradually thinning from Inside To Outside at corresponding first storage tank 31 of side magnetic conductor 3.
The side edge section 41 of the side edge section of side magnetic conductor 3 and the first compensating magnet 4 is flush.In Fig. 3, the first compensating magnet 4
Side edge section 41 extend at the side edge section of side magnet 7, the inner side edge edge 42 of the first compensating magnet 4 is located at side magnetic
The outside of the inner side edge edge of iron 7.The width of first compensating magnet 4 is less than the width of side magnet 7.In Fig. 7 and Fig. 8, first mends
The side edge section 41 for repaying magnet 4 is extended at the side edge section of side magnet 7, with the side edge section of side magnet 7 it is vertical on
Alignment, the inner side edge edge 42 of the first compensating magnet 4 are extended at the inner side edge edge of side magnet 7, the width of the first compensating magnet 4
Degree is equal with the width of side magnet 7.
Reference picture 4, the first compensating magnet 4 can take structure in detail below：The side edge section 41 of first compensating magnet 4 with
Connected between inner side edge edge 42 by the transition cambered surface 45 in outside with the transition of transition plane 43 of inner side.The transition cambered surface in outside
45 gradually upwardly extend from Inside To Outside, the thickness of the first compensating magnet 4 is gradually risen from Inside To Outside, form outside
The bulge-structure that edge part 41 raises up.While magnetic conductor 3 close to while magnet 7 surface on the first storage tank 31 shape with
The shape of first compensating magnet 4 is adapted.The side edge section 41 of first compensating magnet 4 extends to the outer ledge of side magnet 7
At portion, the inner side edge edge 42 of the first compensating magnet 4 is located at the outside of the inner side edge edge of side magnet 7, the first compensating magnet 4
Width is less than the width of side magnet 7.
Reference picture 5, the first compensating magnet 4 can take structure in detail below：The side edge section 41 of first compensating magnet 4 with
Connected between inner side edge edge 42 by the intermediate incline 44 in outside with the transition of transition plane 43 of inner side.The intermediate incline in outside
43 gradually upwardly extend from Inside To Outside, the thickness of the first compensating magnet 4 is gradually risen from Inside To Outside, form outside
The bulge-structure that edge part 41 raises up.While magnetic conductor 3 close to while magnet 7 surface on the first storage tank 31 shape with
The shape of first compensating magnet 4 is adapted.The side edge section 41 of first compensating magnet 4 extends to the outer ledge of side magnet 7
At portion, the inner side edge edge 42 of the first compensating magnet 4 is located at the outside of the inner side edge edge of side magnet 7, the first compensating magnet 4
Width is less than the width of side magnet 7.
Reference picture 6, the first compensating magnet 4 can take structure in detail below：The table of side edge section 41 of first compensating magnet 4
Connected between face and the surface of inner side edge edge 42 by the chamfered transition of entirety, and inclined-plane gradually prolongs upwards from Inside To Outside
Stretch, the thickness of the first compensating magnet 4 is gradually risen from Inside To Outside, form the raised knot that side edge section 41 raises up
Structure, the longitudinal section of the first compensating magnet 4 are triangular in shape.Corresponding, the longitudinal section of side magnetic conductor 3 is also triangular in shape, side magnetic conduction
The bottom surface of first storage tank 31 of the body 3 on the surface of side magnet 7 is in inclined-plane, is adapted with the shape of the first compensating magnet 4,
It is gradually thinning from Inside To Outside at corresponding first storage tank of side magnetic conductor 3.The side edge section of side magnetic conductor 3 and the first compensation
The outermost edges portion 41 of magnet 4 is flush, the inner side edge edge of side magnetic conductor 3 and the inner side edge edge of the first compensating magnet 4
42 are also flush.The side edge section 41 of first compensating magnet 4 is extended at the side edge section of side magnet 7, the first compensation magnetic
The inner side edge edge 42 of iron 4 is extended at the inner side edge edge of side magnet 7.The width of first compensating magnet 4 is equal to side magnet 7
Width.
Reference picture 9, the first compensating magnet 4 can take structure in detail below：The inner side edge edge 42 of first compensating magnet 4 with
Connected between side edge section 41 by two transition of transition plane 43, the thickness at the transition plane in outside is more than the mistake of inner side
The thickness crossed at plane.The side edge section 41 of first compensating magnet 4 is extended at the side edge section of side magnet 7, and first mends
Repay magnet 4 inner side edge edge 42 be located at side magnet 7 inner side edge edge outside.The width of first compensating magnet 4 is less than side
The width of magnet 7.
Reference picture 10, the first compensating magnet 4 can take structure in detail below：The inner side edge edge 42 of first compensating magnet 4
It is connected between side edge section 41 by the transition of transition cambered surface 45 of the transition plane 43 and an inner side in an outside.Transition
Cambered surface 45 gradually upwardly extends from Inside To Outside, makes thickness at 4 corresponding transition cambered surface 45 of the first compensating magnet from interior lateral
Outside gradually increases.The side edge section 41 of first compensating magnet 4 is extended at the side edge section of side magnet 7, the first compensation
The inner side edge edge 42 of magnet 4 is located at the inner side of the inner side edge edge of side magnet 7.
Reference picture 11, the first compensating magnet 4 can take structure in detail below：The inner side edge edge 42 of first compensating magnet 4
It is connected between side edge section 41 by the transition of intermediate incline 44 of the transition plane 43 and an inner side in an outside.Transition
Inclined-plane 44 gradually upwardly extends from Inside To Outside, makes thickness at the corresponding intermediate incline 44 of the first compensating magnet 4 from interior lateral
Outside gradually increases.The side edge section 41 of first compensating magnet 4 is extended at the side edge section of side magnet 7, the first compensation
The inner side edge edge 42 of magnet 4 extends to the inner side edge edge of side magnet 7.
Reference picture 12 and 13, the first compensating magnet 4 can take structure in detail below：The inside edge of first compensating magnet 4
Connected between portion 42 and side edge section 41 by the transition of transition cambered surface 45 of the transition plane 43 and an inner side in an outside.
Transition cambered surface 45 gradually upwardly extends from Inside To Outside, makes the thickness at 4 corresponding transition cambered surface 45 of the first compensating magnet in
Laterally outside gradually increases.The side edge section 41 of first compensating magnet 4 is extended at the side edge section of side magnet 7, and first
The inner side edge edge 42 of compensating magnet 4 extends to the inner side edge edge of side magnet 7.Transition cambered surface 45 can use different curvature,
The shape of fovea superior or recessed shape can be formed.
Reference picture 14, Figure 15 and Figure 17, the second compensating magnet 6 can take structure in detail below：Outside second compensating magnet 6
Pass through the transition plane 63 in outside and the mistake of transition cambered surface 65 of inner side between the surface of lateral edge portion 61 and the surface of inner side edge edge 62
Connection is crossed, transition cambered surface 65 can use different curvature, can form the shape of fovea superior or recessed shape.Transition cambered surface 65 is certainly
Inside To Outside extends gradually downward, makes the thickness at 6 corresponding transition cambered surface 65 of the second compensating magnet gradual from Inside To Outside
Increase.In Figure 14 and Figure 15, the side edge section 61 of the second compensating magnet 6 is extended at the side edge section of side magnet 7, and second
The inner side edge edge 62 of compensating magnet 6 is located at the outside of the inner side edge edge of side magnet 7.In Figure 17, outside the second compensating magnet 6
Lateral edge portion 61 is extended at the side edge section of side magnet 7, and the inner side edge edge 62 of the second compensating magnet 6 extends to side magnet
7 inner side edge edge, the width of the second compensating magnet 6 are equal to the width of side magnet 7.
Reference picture 18, the second compensating magnet 6 can take structure in detail below：The side edge section 61 of second compensating magnet 6
Connected between surface and the surface of inner side edge edge 62 by two transition of transition plane 63, the thickness at the transition plane in outside is big
Thickness at the transition plane of inner side.The side edge section 61 of second compensating magnet 6 extends to the side edge section of side magnet 7
Place, the inner side edge edge 62 of the second compensating magnet 6 is located at the outside of the inner side edge edge of side magnet 7, the width of the second compensating magnet 6
Width of the degree less than side magnet 7.
Reference picture 19 and Figure 20, the second compensating magnet 6 can take structure in detail below：The outer side edges of second compensating magnet 6
Connected between the surface of edge 61 and the surface of inner side edge edge 62 by the cambered surface transition of entirety, and cambered surface is gradual from Inside To Outside
Upwardly extend, the thickness of the second compensating magnet 6 is gradually risen from Inside To Outside, form what side edge section 61 raised up
Bulge-structure.The width of second compensating magnet 6 is consistent with the width of side magnet 7, the side edge section 61 of the second compensating magnet 6 with
The side edge section alignment of side magnet 7, the inner side edge edge of the second compensating magnet 6 is alignd with the inner side edge edge of side magnet 7.Phase
Accordingly, the shape of the second storage tank 51 on magnetic conductive part 5 is consistent with the shape of the second compensating magnet 6.
Reference picture 21 and Figure 25, the second compensating magnet 6 can take structure in detail below：The outer side edges of second compensating magnet 6
Connected between the surface of edge 61 and the surface of inner side edge edge 62 by the chamfered transition of entirety, and inclined-plane is from Inside To Outside
Gradually upwardly extend, the thickness of the second compensating magnet 6 is gradually risen from Inside To Outside, it is convex to form side edge section 61
The bulge-structure risen.In Figure 21, the width of the second compensating magnet 6 is consistent with the width of side magnet 7, outside the second compensating magnet 6
Lateral edge portion is alignd with the side edge section of side magnet 7, the inner side edge edge of the second compensating magnet 6 and the inner side edge of side magnet 7
Align edge.Accordingly, the shape of the second storage tank 51 on magnetic conductive part 5 is consistent with the shape of the second compensating magnet 6.Figure
In 25, the width of the second compensating magnet 6 is less than the width of side magnet 7, side edge section and the side magnet 7 of the second compensating magnet 6
Side edge section alignment, the inside edge portion of the second compensating magnet 6 is located at the outside of the inner side edge edge of side magnet 7.
Reference picture 22, the second compensating magnet 6 can take structure in detail below：The side edge section 61 of second compensating magnet 6
Connected between surface and the surface of inner side edge edge 62 by the intermediate incline 64 in outside and the transition of transition plane 63 of inner side, transition
Inclined-plane 64 extends gradually downward from Inside To Outside, makes thickness at the corresponding intermediate incline 64 of the second compensating magnet 4 from interior lateral
Outside gradually increases.The width of second compensating magnet 6 be less than side magnet 7 width, the side edge section of the second compensating magnet 6 with
The side edge section alignment of side magnet 7, the side edge section of the second compensating magnet 6 are extended at the side edge section of side magnet 7,
The inside edge portion of second compensating magnet 6 is located at the outside of the inner side edge edge of side magnet 7.Second on magnetic conductive part 5 is accommodating
The shape of groove 51 is consistent with the shape of the second compensating magnet 6.
Reference picture 23, the second compensating magnet 6 can take structure in detail below：The side edge section 61 of second compensating magnet 6
Connected between surface and the surface of inner side edge edge 62 by the transition cambered surface 65 in outside and the transition of transition plane 63 of inner side.Transition
Cambered surface 65 extends gradually downward from Inside To Outside, makes the thickness at 6 corresponding intermediate incline of the second compensating magnet outside from inner side
Side gradually increases.The width of second compensating magnet 6 is less than the width of side magnet 7, the side edge section of the second compensating magnet 6 and side
The side edge section alignment of magnet 7, the side edge section of the second compensating magnet 6 are extended at the side edge section of side magnet 7, the
The inside edge portion of two compensating magnets 6 is located at the outside of the inner side edge edge of side magnet 7.The second storage tank on magnetic conductive part 5
51 shape is consistent with the shape of the second compensating magnet 6.
With reference to 24, the second compensating magnet 6 can take structure in detail below：The table of side edge section 61 of second compensating magnet 6
It is connected smoothly between face and the surface of inner side edge edge 62 by the cambered surface of entirety.Cambered surface is prolonged gradually downward from Inside To Outside
Stretch, the thickness of the second compensating magnet 6 is gradually increased from Inside To Outside.The width of second compensating magnet 6 is less than side magnet 7
Width, the side edge section 61 of the second compensating magnet 6 are extended at the side edge section of side magnet 7, the outer side edges with side magnet 7
Edge is alignd, and the inner side edge edge 62 of the second compensating magnet 6 is located at the outside of the inner side edge edge of side magnet 7.On magnetic conductive part 5
The second storage tank 51 shape it is consistent with the shape of the second compensating magnet 6.
Certainly, for the first compensating magnet 4, second compensating magnet 6 shape and with side magnetic conductive board 3, magnetic conductive part 6
Combining structure, it is not limited to which the example above, this area and those skilled in the relevant art can also make according to above-mentioned structure
Deformation, each falls within the scope of protection of the utility model.
Reference picture 26, acoustical generator of the present utility model, including accessory system, magnetic circuit system and vibrational system, accessory system
Including the protecgulum 1 and shell 2 being combined together, protecgulum 1 and shell 2 surround for accommodating magnetic circuit system and vibrational system jointly
Inner chamber, magnetic circuit system use above-mentioned magnetic circuit system.
Citing described above for the utility model preferred forms, wherein the part do not addressed in detail is this area
The common knowledge of those of ordinary skill.The scope of protection of the utility model is defined by the content of claim, any to be based on this reality
The equivalent transformation carried out with new technical inspiration, also within the scope of protection of the utility model.
Claims (10)
1. magnetic circuit system, including magnetic conductive part, the magnetic conductive part is provided with centring magnet and side magnet, is set on the side magnet
There is side magnetic conductive board, it is characterised in that：It is described to be respectively equipped with compensation on the upper surface of magnet and while described on the lower surface of magnet
Magnet, the side edge section of the compensating magnet are extended at the side edge section of the side magnet, on the side magnetic conductive board and
Be respectively provided with the storage tank for accommodating the corresponding compensating magnet on the magnetic conductive part, the structure of the storage tank with it is corresponding
The compensating magnet is adapted.
2. magnetic circuit system as claimed in claim 1, it is characterised in that：The compensating magnet is slab construction, or is outside
Edge part thickness is more than the bulge-structure of inner side edge edge thickness, and the surface that the compensating magnet is in contact with the side magnet
For plane.
3. magnetic circuit system as claimed in claim 2, it is characterised in that：Between the inner side edge edge and the side edge section
Connected by plane or chamfered transition, or the inner side edge edge seamlessly transits company with the side edge section by cambered surface
Connect.
4. magnetic circuit system as claimed in claim 2, it is characterised in that：Between the inner side edge edge and the side edge section
Connected by least two transition faces, the transition face includes transition plane, intermediate incline and transition cambered surface.
5. magnetic circuit system as claimed in claim 4, it is characterised in that：Between the inner side edge edge and the side edge section
Connected by least two transition plane transition, the thickness at the transition plane in outside is more than the thickness at the transition plane of inner side
Degree.
6. magnetic circuit system as claimed in claim 4, it is characterised in that：Between the inner side edge edge and the side edge section
Connected by least two intermediate inclines or at least two transition cambered surface transition, the thickness of the compensating magnet is outside from inner side
Side gradually rises.
7. magnetic circuit system as claimed in claim 4, it is characterised in that：Between the inner side edge edge and the side edge section
Connected by least two different transition face transition, compensating magnet corresponds to the thickness or the corresponding mistake at the intermediate incline
The thickness crossed at cambered surface gradually rises from Inside To Outside.
8. the magnetic circuit system as described in any one of claim 1 to 7, it is characterised in that：The width of the compensating magnet be less than or
Equal to the width of the side magnet.
9. magnetic circuit system as claimed in claim 8, it is characterised in that：The compensating magnet is integrated knot with the side magnet
Structure；Or the compensating magnet is adhesively fixed with the side magnet and is integrated.
10. acoustical generator, including magnetic circuit system, it is characterised in that：The magnetic circuit system is described in any one of claim 1 to 9
Magnetic circuit system.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108289269A (en) * | 2018-01-04 | 2018-07-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108347687A (en) * | 2018-04-16 | 2018-07-31 | 苏州倍声声学技术有限公司 | Add magnetic jig and adds magnetic device |
| CN110121135A (en) * | 2019-05-09 | 2019-08-13 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110149577A (en) * | 2019-05-09 | 2019-08-20 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110166902A (en) * | 2019-05-09 | 2019-08-23 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110213697A (en) * | 2019-05-09 | 2019-09-06 | 瑞声光电科技(常州)有限公司 | Microphone device |
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- 2017-04-25 CN CN201720443929.0U patent/CN206775733U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108289269A (en) * | 2018-01-04 | 2018-07-17 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108289269B (en) * | 2018-01-04 | 2019-08-02 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108347687A (en) * | 2018-04-16 | 2018-07-31 | 苏州倍声声学技术有限公司 | Add magnetic jig and adds magnetic device |
| CN108347687B (en) * | 2018-04-16 | 2024-04-23 | 苏州倍声声学技术有限公司 | Magnetizing jig and magnetizing device |
| CN110121135A (en) * | 2019-05-09 | 2019-08-13 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110149577A (en) * | 2019-05-09 | 2019-08-20 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110166902A (en) * | 2019-05-09 | 2019-08-23 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110213697A (en) * | 2019-05-09 | 2019-09-06 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110166902B (en) * | 2019-05-09 | 2021-06-11 | 瑞声光电科技(常州)有限公司 | Sound production device |
| CN110149577B (en) * | 2019-05-09 | 2021-12-14 | 瑞声光电科技(常州)有限公司 | Sound production device |
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