CN102665160A - Lead spot welding tooling and line spot welding method for sound films of loudspeakers - Google Patents
Lead spot welding tooling and line spot welding method for sound films of loudspeakers Download PDFInfo
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- CN102665160A CN102665160A CN2012101651246A CN201210165124A CN102665160A CN 102665160 A CN102665160 A CN 102665160A CN 2012101651246 A CN2012101651246 A CN 2012101651246A CN 201210165124 A CN201210165124 A CN 201210165124A CN 102665160 A CN102665160 A CN 102665160A
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Abstract
The invention relates to a lead spot welding tooling and a lead spot welding method for sound films of loudspeakers. The lead spot welding tooling comprises a lower base and an upper press base. The upper end face of the lower base is provided with limit flanges and a boss. The boss is provided with a positioning hole. The inner wall of the positioning hole is provided with a positioning groove. An annular step surface for mounting a sound coil is arranged at the upper end of the boss. The upper press base comprises a first base body and a second base body inserted into the positioning hole. The diameter of the first base body is larger than the diameter of the positioning hole. The second base body is provided with a positioning insert matched with the positioning groove. Lead retaining support legs are arranged on two side walls of the first base body. The limit flanges are respectively provided with a lead clamping notch. Two leads of the sound coil are subjected to spot welding on a frame without mutual contact, are loosened sufficiently and cannot vibrate along with the sound films, so that breakage of the leads due to fatigue is effectively avoided, and the service life of products is prolonged. Further, the integral load of the sound films is reduced, the loudspeakers are better in pure tone and low in distortion, operation can be completed by only one person, work efficiency is improved and labor cost is reduced.
Description
Technical field
The invention belongs to technical field of electronic devices, be specifically related to the loud speaker in the field of electronic devices, relate to a kind of sound film of loudspeaker dotted line frock and method more specifically.
Background technology
At present the dotted line mode of sound film is to draw two lead-in wires of voice coil loudspeaker voice coil from same point, and blended rubber water goes between two and is fixed on the sound film, again with voice coil leads with glue spots on the sound film; The shortcoming of this kind dotted line mode is: because two voice coil leads are drawn from same point; Two lead-in wires are in contact with one another, and after the long-term vibration friction of sound film, the insulating barrier on two lead-in wires is often spoilt; Cause two leading-in conductor contacts to form short circuit, loud speaker just can sound, can't use like this; Simultaneously with voice coil leads with glue spots on the sound film, in when vibration, voice coil leads is followed the sound film and is vibrated together, is easy to cause the fatigue broken string of lead-in wire; And with voice coil loudspeaker voice coil with glue spots to the sound film, increased the load of sound film, cause the pure tone of loud speaker to descend, the distortion factor improves; Simultaneously this kind dotted line mode need could be accomplished through a large amount of manual work cooperations, and the shape of dotted line and glue quantity pass through Artificial Control fully, is easy to cause the quality decline of loud speaker.
Summary of the invention
To above-mentioned technical problem, the present invention provides a kind of sound film of loudspeaker dotted line frock and method, its with voice coil leads point on the basin frame; Two lead-in wires are not in contact with one another, and loosen voice coil leads fully, and lead-in wire is not along with the vibrations of sound film simultaneously; Effectively prevented tired broken string, improved the useful life of product, and the overall load of sound film alleviates; Make the pure tone of loud speaker better, distortion is littler.
Realize that technical scheme of the present invention is following:
Sound film of loudspeaker dotted line frock, it comprises lower bottom base, is arranged on the upper pressure seat that lower bottom base up and down base cooperates; The upper surface of lower bottom base is provided with spacing rib protruding upward; Middle part, upper surface at lower bottom base is provided with the upwards boss of jack-up; Offer location hole on this boss, the inwall of location hole offers location notch, is provided with the annular table terrace that voice coil loudspeaker voice coil is installed in the upper end of boss; Upper pressure seat comprises first pedestal; And be arranged on second pedestal that the first pedestal lower surface is used for inserting above-mentioned location hole; First pedestal is greater than the aperture of location hole; Second pedestal is provided with the location inserted block that cooperates with above-mentioned location notch, is provided with retaining line leg in the two side of first pedestal, and said spacing rib is provided with the clamp otch.
Said lower bottom base upper surface offers the circular arc storage tank, and this circular arc storage tank is between spacing rib and boss.
Be provided with two reference columns in the said circular arc storage tank, two reference columns are arranged on a side in the circular arc storage tank at interval.The lower surface of basin frame is provided with weld tabs; And the pad of weld tabs is positioned at the upper surface of basin frame, and the effect of its circular arc storage tank is the weld tabs that is used to place basin frame lower surface, and two reference columns then withstand on two weld tabs; When spot welding, can provide support like this, also can prevent the rotation of basin frame simultaneously.
Said retaining line leg is " 7 " font leg, and the following folding end of " 7 " font leg tilts to the first pedestal direction.The last horizontal end of " 7 " font leg is connected on the upper pressure seat; Following folding holds two lead-in wires to voice coil loudspeaker voice coil to keep off line, and owing to folding under it is held to being obliquely installed, even after voice coil leads spot welding is fixing; Upper pressure seat also can conveniently be extracted from lower bottom base, can not form influence to voice coil leads.
Said lower bottom base upper surface offers annular groove around boss.This annular groove is used to put the projection of basin frame lower surface.
Said retaining line leg is provided with four, and it is respectively first leg, second leg, the 3rd leg, the 4th leg that is provided with at interval, and first leg, second leg are positioned at a side of first pedestal, and the 3rd leg, the 4th leg are positioned at the opposite side of first pedestal.After basin frame, voice coil loudspeaker voice coil, voice coil leads and upper pressure seat are in place; Two weld tabs on the basin frame are between second leg, the 3rd leg; Spot welding machine spots weld voice coil loudspeaker voice coil two lead-in wires on the corresponding weld tabs from second leg, the 3rd leg; And from adopting glue that two lead-in wires of voice coil loudspeaker voice coil are cemented in respectively on the basin frame for one section between first leg, second leg and between the 3rd leg, the 4th leg, thereby firm voice coil leads is fixed on the basin frame.
Said spacing rib is provided with two, and the confined planes of two spacing ribs is on same circle, and said clamp otch is arranged on wherein on the spacing rib.Leaving certain gaps uncovered by the economic plan between two spacing ribs is convenient to pick and place the basin frame; And when being placed into circular basin frame on the lower bottom base, by the confined planes of two spacing ribs it is carried out spacing, thereby the basin frame can not about, move forward and backward.
Said boss is a round boss, and location hole is circular location hole, and first pedestal, second pedestal are cylindrical pedestal.
Sound film of loudspeaker point line method, it may further comprise the steps,
Step 1: cooperating of the confined planes through basin frame external diameter and lower bottom base upper limit rib, the basin frame tentatively is installed on the lower bottom base, the reference column on the lower bottom base withstands weld tabs on the basin frame and forms and support;
Step 2: be enclosed within voice coil loudspeaker voice coil on the positioning boss of lower bottom base central authorities, two lead ends of voice coil loudspeaker voice coil are drawn through the both sides of the last direction basin frame of basin frame;
Step 3: the reference column of upper pressure seat is injected in the location hole at lower bottom base middle part; Draw-in groove in the fixture block aligned hole on its reference column is inserted; After upper pressure seat was in place, the retaining line leg lower end on the upper pressure seat was pressed on the basin frame, and the basin frame is fixed between lower bottom base and the upper pressure seat;
Step 4: two lead-in wires of voice coil loudspeaker voice coil are drawn from the periphery of retaining line leg respectively, and snap in respectively in the clamp otch corresponding on the spacing rib, such two lead-in wires are corresponding weld tabs solder joint top process from the basin frame respectively;
Step 5: adopt welding machine between retaining line leg the welding section of two lead-in wires being welded on the corresponding weld tabs, after welding is accomplished, take off upper pressure seat, take out the basin frame again and promptly accomplish, wait for the dotted line of next voice coil loudspeaker voice coil.
In the above-mentioned steps four, retaining line leg is four, promptly is respectively arranged with two in the both sides of upper pressure seat, and is provided with at interval between the retaining line leg, and when spot welding, spot welding machine is from being welded in voice coil loudspeaker voice coil two lead-in wires point on the corresponding weld tabs between the retaining line leg like this.
In the above-mentioned steps five, before or after the welding section that adopts welding machine with two lead-in wires is welded to corresponding weld tabs, adopt glue that two lead-in wires are bonded at respectively on the basin frame.Same glue is bonded at lead-in wire on the basin frame from the interval between the retaining line leg.
Adopted such scheme, through the lead-out wire mode of offshore shape, with two mutually non-touching drawing of lead-in wire of voice coil loudspeaker voice coil, short circuit, loud speaker tone-off that the mutual friction of having avoided going between causes; And through basin frame dotted line mode, on the basin frame, when having loosened voice coil leads fully, lead-in wire does not shake along with the vibrations of sound film with voice coil leads point, the fatigue broken string of having avoided lead-in wire to cause because of vibrations, the useful life of having improved product; And it is excessive and pure tone that cause is bad, distortion is higher to have avoided that lead-in wire is cemented in load that the glue on the sound film causes the sound film; The application of the invention, the overall load of sound film alleviates, and the pure tone of loud speaker is better; Distortion is littler, has improved the voice quality of loud speaker; After doing long-time life experiment with 0.5W, sine wave, F0 frequency, draw common life-span and be about 200 hours, and the loud speaker that adopts the present invention to accomplish reaches 1000 hours useful life the mode of voice coil leads point on the sound film, the life-span significantly improves; The present invention only needs a people that basin frame, voice coil loudspeaker voice coil and lead-in wire thereof are installed between lower bottom base and the upper pressure seat, just can carry out the spot welding gluing, and is simple to operate, installs to retract fast, improved operating efficiency, reduced the recruitment cost.
Description of drawings
Fig. 1 is the structural representation of dotted line frock of the present invention;
Fig. 2 is the structural representation of speaker frame, voice coil loudspeaker voice coil;
Among the figure, 1 is lower bottom base, and 2 is upper pressure seat, and 3 is the spacing rib of circular arc, and 301 is the spacing rib of circular arc, and 4 is confined planes, and 401 is confined planes; 5 is breach, and 6 is the basin frame, and 7 is boss, and 8 is location hole, and 9 is location notch, and 10 is voice coil loudspeaker voice coil, and 11 is the annular table terrace; 12 is first pedestal, and 13 is second pedestal, and 14 are the location inserted block, and 15 are retaining line leg, and 16 is the clamp otch, and 161 is the clamp otch; 17 is the following folding end of leg, and 18 is voice coil leads, and 19 is first leg, and 20 is second leg, and 21 is the 3rd leg, and 22 is the 4th leg; 23 is the circular arc storage tank, and 24 is reference column, and 241 is reference column, and 25 is annular groove, and 26 is pad, and 27 is the glue bonding part.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further specified.
Referring to Fig. 1,2, sound film of loudspeaker dotted line frock, it comprises lower bottom base 1, is arranged on the upper pressure seat 2 that lower bottom base 1 up and down base cooperates; The upper surface of lower bottom base 1 is provided with two spacing ribs 3,301 of circular arc protruding upward; The spacing rib of circular arc is provided with two, the confined planes 4,401 of two spacing ribs of circular arc on same circle, leaving certain gaps uncovered by the economic plan 5 between two spacing ribs of circular arc; Be convenient to pick and place basin frame 6; And circular basin frame 6 is being placed into 1 last time of lower bottom base, by two spacing ribs 3,301 of circular arc it is carried out spacing, thereby the basin frame can not about, move forward and backward; Clamp otch 16,161 is arranged on wherein on the spacing rib 3 of a circular arc; Middle part, upper surface at lower bottom base 1 is provided with the upwards boss 7 of jack-up, offers location hole 8 on this boss 7, and the inwall of location hole 8 offers location notch 9, is provided with the annular table terrace 11 that voice coil loudspeaker voice coil 10 is installed in the upper end of boss; Boss 7 is a round boss, and location hole 8 is circular location hole;
Wherein, Retaining line leg 15 is provided with four; It is respectively the side that first leg 19 that is provided with at interval, second leg 20, the 3rd leg 21, the 4th leg 22, the first legs 19, second leg 20 are positioned at first pedestal 12, and the 3rd leg 21, the 4th leg 22 are positioned at the opposite side of first pedestal.
Lower bottom base 1 upper surface offers circular arc storage tank 23; This circular arc storage tank is between spacing rib of circular arc and boss 7; Be provided with two reference columns 24,241 in the circular arc storage tank; Two reference columns are arranged on a side in the circular arc storage tank at interval, and reference column and lower bottom base are for being wholely set or being welded; The lower surface of basin frame 6 is provided with the weld tabs (not shown); And the pad 26 of weld tabs is positioned at the upper surface of basin frame 6; The effect of its circular arc storage tank is the weld tabs that is used to place basin frame 6 lower surfaces; Two reference columns 24,241 then withstand on two weld tabs, when spot welding, can provide support like this, also can prevent the rotation of basin frame 6 simultaneously.Lower bottom base 1 upper surface offers annular groove 25 around boss 7.This annular groove 25 is used to put the projection (not shown) of basin frame 6 lower surfaces.
After basin frame 6, voice coil loudspeaker voice coil 10 are installed on the lower bottom base; Voice coil leads is drawn from the voice coil loudspeaker voice coil both sides; Again upper pressure seat is assembled on the lower bottom base; Two voice coil leads finally are stuck in the clamp otch along the outside lower limb of retaining line leg; The solder joint of two weld tabs on this moment basin frame is between second leg, the 3rd leg, and spot welding machine spots weld voice coil loudspeaker voice coil two lead-in wires on the corresponding solder joint from second leg, the 3rd leg, and from adopting glue that two lead-in wires of voice coil loudspeaker voice coil are cemented in the glue bonding part 27 on the basin frame respectively between first leg, second leg and between the 3rd leg, the 4th leg; Thereby firm is fixed on voice coil leads on the basin frame, and welding just can be taken off the basin frame after accomplishing with voice coil loudspeaker voice coil.
Sound film of loudspeaker point line method, it may further comprise the steps,
Step 1: the external diameter through the basin frame cooperates with the confined planes of lower bottom base upper limit rib, and the basin frame tentatively is installed on the lower bottom base, and the reference column on the lower bottom base withstands weld tabs on the basin frame and forms and support, and is convenient to spot welding;
Step 2: be enclosed within voice coil loudspeaker voice coil on the positioning boss of lower bottom base central authorities, offer the annular table terrace of location voice coil loudspeaker voice coil in the positioning boss upper end, two lead ends of voice coil loudspeaker voice coil are drawn through the both sides of the last direction basin frame of basin frame;
Step 3: the reference column of upper pressure seat is injected in the location hole at lower bottom base middle part; Draw-in groove in the fixture block aligned hole on its reference column is inserted; Upper pressure seat just can be installed on the lower bottom base like this; After upper pressure seat was in place, the retaining line leg lower end on the upper pressure seat was pressed on the basin frame, thereby the basin frame is securely fixed between lower bottom base and the upper pressure seat;
Step 4: two lead-in wires of voice coil loudspeaker voice coil are drawn from the periphery of retaining line leg respectively and distributed along retaining line leg, finally snap in respectively in the clamp otch corresponding on the spacing rib, such two lead-in wires are corresponding weld tabs solder joint top process from the basin frame respectively; Wherein keeping off the line leg is four, promptly is respectively arranged with two in the both sides of upper pressure seat, and is provided with at interval between the retaining line leg, and when spot welding, spot welding machine is from being welded in voice coil loudspeaker voice coil two lead-in wires point on the corresponding weld tabs between the retaining line leg like this.
Step 5: adopt spot welding machine that the welding section of two lead-in wires is welded on the corresponding weld tabs, after welding is accomplished, take off upper pressure seat, take out the basin frame again and promptly accomplish, wait for the dotted line of next voice coil loudspeaker voice coil.Before or after the welding section that adopts welding machine with two lead-in wires is welded to corresponding weld tabs, adopt glue from the interval between the retaining line leg just two lead-in wires be bonded at respectively on the basin frame.With sound film, magnetic bowl, magnet steel pole piece on the basin frame glue that takes off, promptly accomplish the manufacturing of whole loud speaker.
Utilize dotted line frock and method, voice coil leads is symmetrical offshore shape draws, point is welded on the weld tabs on the basin frame; When it fully loosens voice coil leads; Voice coil leads can not shake with the sound film, has effectively avoided tired broken string, has prolonged the useful life of voice coil loudspeaker voice coil and lead-in wire thereof; The short circuit tone-off of effectively having avoided two lead-in wire phase mutual friction and having caused, and the load of sound film is excessive and pure tone that cause is bad, distortion is higher.
Above-described only is one embodiment of the present invention, should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the invention design, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (10)
1. sound film of loudspeaker dotted line frock is characterized in that: it comprises lower bottom base, is arranged on the upper pressure seat that lower bottom base up and down base cooperates; The upper surface of lower bottom base is provided with spacing rib protruding upward; Middle part, upper surface at lower bottom base is provided with the upwards boss of jack-up; Offer location hole on this boss, the inwall of location hole offers location notch, is provided with the annular table terrace that voice coil loudspeaker voice coil is installed in the upper end of boss; Upper pressure seat comprises first pedestal; And be arranged on second pedestal that the first pedestal lower surface is used for inserting above-mentioned location hole; First pedestal is greater than the aperture of location hole; Second pedestal is provided with the location inserted block that cooperates with above-mentioned location notch, is provided with retaining line leg in the two side of first pedestal, and said spacing rib is provided with the clamp otch.
2. sound film of loudspeaker dotted line frock according to claim 1 is characterized in that: said lower bottom base upper surface offers the circular arc storage tank, and this circular arc storage tank is between spacing rib and boss.
3. sound film of loudspeaker dotted line frock according to claim 2 is characterized in that: be provided with two reference columns in the said circular arc storage tank, two reference columns are arranged on a side in the circular arc storage tank at interval.
4. sound film of loudspeaker dotted line frock according to claim 1 is characterized in that: said retaining line leg is " 7 " font leg, and the following folding end of " 7 " font leg tilts to the first pedestal direction.
5. sound film of loudspeaker dotted line frock according to claim 1 is characterized in that: said lower bottom base upper surface offers annular groove around boss.
6. according to each described sound film of loudspeaker dotted line frock in the claim 1-5; It is characterized in that: said retaining line leg is provided with four; It is respectively first leg, second leg, the 3rd leg, the 4th leg that is provided with at interval; First leg, second leg are positioned at a side of first pedestal, and the 3rd leg, the 4th leg are positioned at the opposite side of first pedestal.
7. according to each described sound film of loudspeaker dotted line frock in the claim 1-5, it is characterized in that: said spacing rib is provided with two, and the confined planes of two spacing ribs is on same circle, and said clamp otch is arranged on wherein on the spacing rib.
8. according to each described sound film of loudspeaker dotted line frock in the claim 1-5, it is characterized in that: said boss is a round boss, and location hole is circular location hole, and first pedestal, second pedestal are cylindrical pedestal.
9. sound film of loudspeaker point line method, it is characterized in that: it may further comprise the steps,
Step 1: through cooperating of basin frame external diameter and lower bottom base upper limit rib confined planes, the basin frame tentatively is installed on the lower bottom base, the reference column on the lower bottom base withstands weld tabs on the basin frame and forms and support;
Step 2: be enclosed within voice coil loudspeaker voice coil on the positioning boss of lower bottom base central authorities, two lead ends of voice coil loudspeaker voice coil are drawn through the both sides of the last direction basin frame of basin frame;
Step 3: the reference column of upper pressure seat is injected in the location hole at lower bottom base middle part; Draw-in groove in the fixture block aligned hole on its reference column is inserted; After upper pressure seat was in place, the retaining line leg lower end on the upper pressure seat was pressed on the basin frame, and the basin frame is fixed between lower bottom base and the upper pressure seat;
Step 4: two lead-in wires of voice coil loudspeaker voice coil are drawn from the periphery of retaining line leg respectively, and snap in respectively in the clamp otch corresponding on the spacing rib, such two lead-in wires are corresponding weld tabs solder joint top process from the basin frame respectively;
Step 5: adopt welding machine between retaining line leg the welding section of two lead-in wires being welded on the corresponding weld tabs, after welding is accomplished, take off upper pressure seat, take out the basin frame again and promptly accomplish, wait for the dotted line of next voice coil loudspeaker voice coil.
10. sound film of loudspeaker point line method according to claim 9 is characterized in that: in the above-mentioned steps five, before or after the welding section that adopts welding machine with two lead-in wires is welded to corresponding weld tabs, adopt glue that two lead-in wires are bonded at respectively on the basin frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210165124.6A CN102665160B (en) | 2012-05-24 | 2012-05-24 | Lead spot welding tooling and line spot welding method for sound films of loudspeakers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210165124.6A CN102665160B (en) | 2012-05-24 | 2012-05-24 | Lead spot welding tooling and line spot welding method for sound films of loudspeakers |
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| CN102665160A true CN102665160A (en) | 2012-09-12 |
| CN102665160B CN102665160B (en) | 2014-07-30 |
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| CN201210165124.6A Active CN102665160B (en) | 2012-05-24 | 2012-05-24 | Lead spot welding tooling and line spot welding method for sound films of loudspeakers |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744458A (en) * | 2016-03-21 | 2016-07-06 | 湖南音品电子有限公司 | Loudspeaker processing unit and loudspeaker processing method |
| CN103731786B (en) * | 2013-12-23 | 2016-08-24 | 惠州市三协精密有限公司 | Resistor polarity for speaker detects and the device of automatically dotting automatically |
| CN110651484A (en) * | 2017-03-29 | 2020-01-03 | 伯斯有限公司 | Tool for arranging voice coil leads in a micro-speaker, electro-acoustic transducer and method for assembly |
| CN111432326A (en) * | 2020-04-30 | 2020-07-17 | 东莞天籁之音电声制品有限公司 | Loudspeaker tool |
| US11528572B2 (en) | 2017-03-29 | 2022-12-13 | Bose Corporation | Electro-acoustic transducer including a miniature voice coil |
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| CN201947421U (en) * | 2010-12-03 | 2011-08-24 | 深圳市冠旭电子有限公司 | Ear noise-reducing headphone |
| CN202587355U (en) * | 2012-05-24 | 2012-12-05 | 汉得利（常州）电子有限公司 | Wire spot-welding tool of sound film of loudspeaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5851696A (en) * | 1981-09-24 | 1983-03-26 | Seiko Instr & Electronics Ltd | Dynamic speaker |
| CN201947421U (en) * | 2010-12-03 | 2011-08-24 | 深圳市冠旭电子有限公司 | Ear noise-reducing headphone |
| CN202587355U (en) * | 2012-05-24 | 2012-12-05 | 汉得利（常州）电子有限公司 | Wire spot-welding tool of sound film of loudspeaker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731786B (en) * | 2013-12-23 | 2016-08-24 | 惠州市三协精密有限公司 | Resistor polarity for speaker detects and the device of automatically dotting automatically |
| CN105744458A (en) * | 2016-03-21 | 2016-07-06 | 湖南音品电子有限公司 | Loudspeaker processing unit and loudspeaker processing method |
| CN110651484A (en) * | 2017-03-29 | 2020-01-03 | 伯斯有限公司 | Tool for arranging voice coil leads in a micro-speaker, electro-acoustic transducer and method for assembly |
| CN110651484B (en) * | 2017-03-29 | 2020-11-06 | 伯斯有限公司 | Tool for arranging voice coil leads in a micro-speaker, electro-acoustic transducer and method for assembly |
| US11128971B2 (en) | 2017-03-29 | 2021-09-21 | Bose Corporation | Systems and methods for assembling an electro-acoustic transducer including a miniature voice coil |
| US11528572B2 (en) | 2017-03-29 | 2022-12-13 | Bose Corporation | Electro-acoustic transducer including a miniature voice coil |
| CN111432326A (en) * | 2020-04-30 | 2020-07-17 | 东莞天籁之音电声制品有限公司 | Loudspeaker tool |
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| CN102665160B (en) | 2014-07-30 |
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Owner name: BESTAR (CHANGZHOU) ELECTRONICS CO., LTD. Free format text: FORMER NAME: HADELI (CHANGZHOU) ELECTRONIC CO., LTD. |
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Address after: 213022 Changzhou West District, Jiangsu, the Yellow River West Road, No. 199 Patentee after: HANDELI (CHANGZHOU) ELECTRONICS CO., LTD. Address before: 213032 No. 199 west the Yellow River Road, Xinbei District, Jiangsu, Changzhou Patentee before: BeStar Electronics Industry Co., Ltd. |