CN207010968U - Loudspeaker and sound system - Google Patents
Loudspeaker and sound system Download PDFInfo
- Publication number
- CN207010968U CN207010968U CN201720911001.0U CN201720911001U CN207010968U CN 207010968 U CN207010968 U CN 207010968U CN 201720911001 U CN201720911001 U CN 201720911001U CN 207010968 U CN207010968 U CN 207010968U
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- CN
- China
- Prior art keywords
- loudspeaker
- voice coil
- electric signal
- terminal
- power amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a kind of loudspeaker and sound system, wherein, the loudspeaker include horn basin rack, the voice coil loudspeaker voice coil being arranged in horn basin rack, the electric signal input line being connected with voice coil loudspeaker voice coil and the electric signal output line being connected with voice coil loudspeaker voice coil, and the loudspeaker also include that one end electrically connects with horn basin rack, the other end is for the ground wire that is electrically connected with power amplifier components.Technical solutions of the utility model between horn basin rack and power amplifier components by electrically connecting ground wire, so that impedance tends to 0V between horn basin rack and power amplifier components, without potential difference it is achieved thereby that reducing loudspeaker to the function of external radiation and the function of lifting antijamming capability, solves EMC caused by loudspeaker (Electro Magnetic Compatibility) problem.
Description
Technical field
Field of audio is the utility model is related to, more particularly to a kind of loudspeaker and sound system.
Background technology
Loudspeaker are parts critically important in sound system, depending on loudspeaker size is with watt level, present sound equipment production
Product are increasingly pursued high-power, and powerful sound equipment typically requires that the size of loudspeaker also with increase, causes easily to cause EMC
(Electro Magnetic Compatibility) problem：
1st, it is high-power mean that loudspeaker flow through electric current it is very big, the radiation for causing loudspeaker outside is very strong；
2nd, large scale loudspeaker cause to be easy to the interference for receiving external electromagnetic field equivalent to good antenna.
Utility model content
Main purpose of the present utility model is to propose a kind of loudspeaker, it is intended to solves EMC caused by loudspeaker (Electro Magnetic Compatibility)
Problem.
To achieve the above object, the utility model proposes include horn basin rack, the sound that is arranged in the horn basin rack
Circle, the electric signal input line being connected with the voice coil loudspeaker voice coil and the electric signal output line being connected with the voice coil loudspeaker voice coil, the loudspeaker also wrap
Include that one end electrically connects with the horn basin rack, the other end is used for the ground wire that is electrically connected with power amplifier components.
Preferably, the ground wire is arranged between the electric signal input line and the electric signal output line.
Preferably, the loudspeaker also include being fixed on insulation board on the horn basin rack, the insulation board be provided with
The first terminal of voice coil loudspeaker voice coil electrical connection, the Second terminal electrically connected with the voice coil loudspeaker voice coil and electrically connected with the horn basin rack
Third terminal, the electric signal input line electrically connect the first terminal, and the electric signal output line electrically connects second end
Son, it is described to be electrically connected to ground the third terminal.
Preferably, the insulation board is fixedly connected by rivet with the horn basin rack, and the third terminal is fixedly connected
In on the rivet.
Preferably, one end of the ground wire is welded in the third terminal.
Preferably, one end of the electric signal input line is welded on the first terminal.
Preferably, one end of the electric signal output line is welded in the Second terminal.
Preferably, the first terminal sets up separately in the both sides of the third terminal with the Second terminal.
Preferably, the horn basin rack is the part made of iron sheet or casting aluminium material.
The utility model also proposes a kind of sound system, including power amplifier components and above-mentioned loudspeaker, the power amplifier components bag
Include shell and the power amplifier being arranged in the shell, the electric signal input line with the electric signal output line and institute
State power amplifier connection, the ground wire and the cage connection；Or the ground wire is connected with the ground wire of the power amplifier.
Technical solutions of the utility model between horn basin rack and power amplifier components by electrically connecting ground wire so that horn basin rack
Impedance tends to 0V, no potential difference between power amplifier components, it is achieved thereby that it is anti-to the function of external radiation and lifting dry to reduce loudspeaker
The function of ability is disturbed, solves EMC caused by loudspeaker (Electro Magnetic Compatibility) problem.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the circuit connection diagram of the loudspeaker that the utility model embodiment provides and power amplifier components；
Fig. 2 is the structural representation for the loudspeaker that the utility model embodiment provides；
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Loudspeaker | 110 | Horn basin rack |
| 120 | Voice coil loudspeaker voice coil | 130 | Electric signal input line |
| 140 | Electric signal output line | 150 | Ground wire |
| 160 | Insulation board | 170 | The first terminal |
| 180 | Second terminal | 190 | Third terminal |
| 200 | Power amplifier components |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of loudspeaker.
In the utility model embodiment, as depicted in figs. 1 and 2, the loudspeaker 100 include horn basin rack 110, are arranged on loudspeaker
The voice coil loudspeaker voice coil 120 of the inner chamber of frame 110, the electric signal input line 130 being connected with voice coil loudspeaker voice coil 120 and the telecommunications being connected with voice coil loudspeaker voice coil 120
Number output line 140, the loudspeaker 100 also electrically connect including one end with horn basin rack 110, and the other end is used for and the electricity of power amplifier components 200
The ground wire 150 of connection.Loudspeaker 100 are mainly used in converting electrical signals to voice signal, when alternating current passes through horn basin rack 100
During interior voice coil loudspeaker voice coil 120, the magnetic field that voice coil loudspeaker voice coil 120 produces a kind of energy and magnet is interactive so that the paper disc vibration in loudspeaker 100, instead
Air and sounding are promoted again.In order that the Electro Magnetic Compatibility for obtaining loudspeaker 100 is more preferable, loudspeaker 100 are provided with ground wire 150, ground wire 150
One end is electrically connected with horn basin rack 110, and the other end is connected with power amplifier components 200 so that horn basin rack 110 and power amplifier components 200
Between without potential difference, it is achieved thereby that reducing the outside radiation function of loudspeaker 100, and improve the anti-interference energy of sound system
Power.
External radiation and the aspect of lifting antijamming capability two are illustrated specific to reduction below：
Reduce the external radiation of loudspeaker 100：Electromagnetic component in loudspeaker 100 is all directly or indirectly fixed on horn basin rack
On 110, electromagnetic radiation is coupled on horn basin rack 110 easily by parasitic capacitance, therefore electrical connection and work(on horn basin rack 110
Put the ground wire 150 of the connection of component 200 so that impedance tends to 0V between horn basin rack 110 and power amplifier components 200, without potential difference,
So as to destroy the transmitting approach of electromagnetic radiation and equivalent aerial, the outside radiation function of horn basin rack 110 is reduced, and then drop
The low external radiation of loudspeaker 100.
Lift antijamming capability：Due to horn basin rack 110 and horn wire (the electric signal output line of electric signal input line 130/
140) it is the antenna that receives external interference, therefore mainly illustrates in terms of two：
When external interference is coupled on horn basin rack 110, because horn basin rack 110 has electrically connected ground wire 150, simultaneously
Line 150 is connected with power amplifier components 200 so that horn basin rack 110 and power amplifier components 200 between moment is disturbed without potential difference, from
And cause external interference between horn basin rack 110 and power amplifier components 200 without influence so that it is real without influence inside sound system
Jamproof function is showed；
When external interference is coupled to horn wire (the electric signal output line 140 of electric signal input line 130/), in loudspeaker 100 just
Under normal working condition, distribution capacity can be produced between electric signal input line 130 and electric signal output line 140 so that be coupling in electricity
Interference signal on signal input line 130 and electric signal output line 140 is flowed into ground wire 150 by distribution capacity, due to ground wire
150 respectively with horn basin rack 110 and the equipotential link of power amplifier components 200 so that interference moment by disturb shunt, interference flow into ground
Line flows into frame, and without potential difference between frame and system, so as to realize that interference signal does not interfere with the normal work of acoustic product
Make, realize jamproof function.
In actual application, horn basin rack 110 is made of using metal material, it is contemplated that processing technology or cost etc.
Factor, in the present embodiment, horn basin rack 110 are made of iron sheet or casting aluminium material.
Technical solutions of the utility model are made by electrically connecting ground wire 150 between horn basin rack 110 and power amplifier components 200
Obtain without potential difference between horn basin rack 110 and power amplifier components 200, it is achieved thereby that reducing function and lifting of the loudspeaker to external radiation
The function of antijamming capability, solves EMC (Electro Magnetic Compatibility) problem caused by loudspeaker 100.
Further, referring to Figures 1 and 2, in order that 100 jamproof ability of loudspeaker it is more preferable, ground wire 150 is arranged on electricity
Between signal input line 130 and electric signal output line 140.In 100 normal work of loudspeaker, electric signal input line 130 and telecommunications
Distribution capacity can be produced between number output line 140, ground wire 150 is arranged on electric signal input line 130 and electric signal output line 140
Between so that the external interference coupled in electric signal input line 130 and electric signal output line 140 can be by distribution capacity faster
Inflow ground wire 150 on, with realize disturb moment system between without potential difference, improve antijamming capability.
Further, reference picture 2, loudspeaker 100 also include the insulation board 160 being fixed on horn basin rack 110, the insulation board
160 are provided with the first terminal 170 and the Second terminal 180 electrically connected with voice coil loudspeaker voice coil 120 and and loudspeaker electrically connected with voice coil loudspeaker voice coil 120
The third terminal 190 that frame 110 electrically connects, electric signal input line 130 electrically connect the first terminal 170, the electricity of electric signal output line 140
Second terminal 180 is connected, ground wire 150 electrically connects third terminal 190.In order to more easily installation and maintenance, by set with
The first terminal 170 and Second terminal 180 of the connection of voice coil loudspeaker voice coil 120 and the third terminal 190 electrically connected with horn basin rack 110, make
Obtain electric signal input line 130 and electric signal output line 140 more easily can electrically connect with voice coil loudspeaker voice coil 120, while cause ground wire
150 more easily can electrically connect with horn basin rack 110, improve efficiency of assembling.By setting insulation board 160 so that each
Do not interfered with each other between individual circuit.
In actual application, it is contemplated that the complexity of processing technology, one end of electric signal input line 130 are welded in
On the first terminal 170, one end of electric signal output line 140 is welded in Second terminal 180, and one end of ground wire 150 is welded in
On three terminals 190.Meanwhile in order that the antijamming capability of loudspeaker 100 is more preferable, the first terminal 170 and Second terminal 180 set up separately
The both sides of third terminal 190, so that ground wire 150 can more easily be arranged on electric signal input line 130 and electric signal output
Between line 140.
Further, reference picture 2, insulation board 160 are fixedly connected, the 3rd by rivet (figure is not marked) with horn basin rack 110
Terminal 190 is fixedly connected on rivet.Rivet in fixed insulation plate 160 and horn basin rack 110 can directly with horn basin rack 110
Contact, because rivet is metallic conduction part, therefore when third terminal 190 is fixedly connected on rivet so that third terminal 190 with
Horn basin rack 110 realizes powering-on function.
The utility model also proposes a kind of sound system, and the sound system includes power amplifier components 200 and above-mentioned loudspeaker
100, the concrete structure of the loudspeaker 100 is with reference to above-described embodiment, because this sound system employs the complete of above-mentioned all embodiments
Portion's technical scheme, therefore all beneficial effects at least caused by the technical scheme with above-described embodiment, herein no longer one by one
Repeat.Wherein, power amplifier components 200 include shell and the power amplifier being arranged in shell, electric signal input line 130 and telecommunications
Number output line 140 is connected with power amplifier, with realize electric signal input line 130, voice coil loudspeaker voice coil 120, electric signal output line 140 and
Power amplifier is sequentially connected to form electric signal loop.Loudspeaker 100 may be provided in shell and form integral sound with power amplifier
Acoustic system, housing profile is may also be arranged on into split type sound system.Ground wire 150 and above-mentioned cage connection, or ground wire 150 with
Power amplifier ground wire connection, ground connection (reference potential is 0) function to realize ground wire 150, so as to realize horn basin rack 110 with
Function without potential difference between power amplifier components 200, and then realize the function of reducing loudspeaker to external radiation and lifting antijamming capability
Function.
Preferred embodiment of the present utility model is these are only, not thereby limits the scope of the claims of the present utility model, it is every
Under inventive concept of the present utility model, the equivalent structure transformation made using the utility model specification and accompanying drawing content, or
Directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of loudspeaker, including horn basin rack, the voice coil loudspeaker voice coil being arranged in the horn basin rack, the electric signal that is connected with the voice coil loudspeaker voice coil
Input line and the electric signal output line being connected with the voice coil loudspeaker voice coil, it is characterised in that the loudspeaker also include one end and the loudspeaker
The electrical connection of frame, the other end are used for the ground wire electrically connected with power amplifier components.
2. loudspeaker as claimed in claim 1, it is characterised in that the ground wire is arranged on the electric signal input line and the electricity
Between output line.
3. loudspeaker as claimed in claim 1 or 2, it is characterised in that the loudspeaker also include being fixed on the horn basin rack
Insulation board, the insulation board is provided with the first terminal electrically connected with the voice coil loudspeaker voice coil, the second end for being electrically connected with the voice coil loudspeaker voice coil
Son and the third terminal electrically connected with the horn basin rack, the electric signal input line electrically connects the first terminal, described
Electric signal output line electrically connects the Second terminal, described to be electrically connected to ground the third terminal.
4. loudspeaker as claimed in claim 3, it is characterised in that the insulation board is fixed by rivet and the horn basin rack to be connected
Connect, the third terminal is fixedly connected on the rivet.
5. loudspeaker as claimed in claim 3, it is characterised in that one end of the ground wire is welded in the third terminal.
6. loudspeaker as claimed in claim 3, it is characterised in that one end of the electric signal input line is welded in the first end
On son.
7. loudspeaker as claimed in claim 3, it is characterised in that one end of the electric signal output line is welded in second end
On son.
8. loudspeaker as claimed in claim 3, it is characterised in that the first terminal and the Second terminal set up separately described the
The both sides of three terminals.
9. loudspeaker as claimed in claim 1 or 2, it is characterised in that the horn basin rack of iron sheet or casting aluminium material by being made up
Part.
A kind of 10. sound system, it is characterised in that the loudspeaker including power amplifier components and as described in claim 1 to 9 any one
, the power amplifier components include shell and the power amplifier that is arranged in the shell, the electric signal input line with it is described
Electric signal output line is connected with the power amplifier, the ground wire and the cage connection；Or the ground wire and the work(
The ground wire connection on electric discharge road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720911001.0U CN207010968U (en) | 2017-07-25 | 2017-07-25 | Loudspeaker and sound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720911001.0U CN207010968U (en) | 2017-07-25 | 2017-07-25 | Loudspeaker and sound system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207010968U true CN207010968U (en) | 2018-02-13 |
Family
ID=61457353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720911001.0U Expired - Fee Related CN207010968U (en) | 2017-07-25 | 2017-07-25 | Loudspeaker and sound system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207010968U (en) |
-
2017
- 2017-07-25 CN CN201720911001.0U patent/CN207010968U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20210725 |