IT201800000303A1 - Container for realizing an improved connection between batteries and a configuration of batteries made by means of the connection - Google Patents
Container for realizing an improved connection between batteries and a configuration of batteries made by means of the connection Download PDFInfo
- Publication number
- IT201800000303A1 IT201800000303A1 IT201800000303A IT201800000303A IT201800000303A1 IT 201800000303 A1 IT201800000303 A1 IT 201800000303A1 IT 201800000303 A IT201800000303 A IT 201800000303A IT 201800000303 A IT201800000303 A IT 201800000303A IT 201800000303 A1 IT201800000303 A1 IT 201800000303A1
- Authority
- IT
- Italy
- Prior art keywords
- container
- battery
- batteries
- connection
- magnets
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 description 7
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/227—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
- H01G11/12—Stacked hybrid or EDL capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/597—Protection against reversal of polarity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Description
Titolo: ”Contenitore per realizzare un collegamento fra batterie perfezionato e una conformazione di batterie realizzata mediante il collegamento” Title: "Container to create an improved connection between batteries and a conformation of batteries made through the connection"
L'invenzione si riferisce a un contenitore per realizzare un collegamento fra batterie perfezionato e una conformazione di batterie realizzato mediante il collegamento The invention relates to a container for making an improved connection between batteries and a configuration of batteries made by means of the connection
Sono noti differenti tipi di collegamento e formazioni di conformazioni di batterie. Different types of connection and formation of battery conformations are known.
Dalla US2014/0220403 A1 è nota una conformazione di batterie comprendente una prima porzione magnetica e una seconda porzione magnetica per collegare la conformazione di batterie con un dispositivo elettronico per alimentare questo. From US2014 / 0220403 A1 a battery configuration is known comprising a first magnetic portion and a second magnetic portion for connecting the battery configuration with an electronic device for powering the latter.
Dalla DE10 2016 119 696 è noto un accumulatore di corrente presentante un corpo. Il corpo dell’accumulatore è formato da una serie di lastre positive e negative che sono accostate alternativamente e formano un campo magnetico. In questo modo viene formato un condensatore a Li per una moltitudine di impieghi in particolare per il settore automobilismo. From DE10 2016 119 696 a current accumulator having a body is known. The body of the accumulator is made up of a series of positive and negative plates which are alternately placed side by side and form a magnetic field. In this way a Li capacitor is formed for a multitude of uses in particular for the automotive sector.
Lo scopo delle presente invenzione è di realizzare un contenitore per realizzare un collegamento fra batterie perfezionato e una conformazione di batterie realizzato mediante il contenitore The object of the present invention is to provide a container for realizing an improved connection between batteries and a configuration of batteries made by means of the container.
Questo scopo viene raggiunto da un contenitore per realizzare un collegamento fra batterie perfezionato secondo la parte caratterizzante della rivendicazione 1 e una conformazione di batterie realizzato mediante il collegamento secondo la parte caratterizzante della rivendicazione 6. This object is achieved by a container for realizing an improved connection between batteries according to the characterizing part of claim 1 and a configuration of batteries realized by means of the connection according to the characterizing part of claim 6.
Il contenitore per batterie è formato da una cassa parallelepipedo in cui viene inserita almeno un batteria o accumulatore di energia o simile o incorpora un batteria, accumulatore di energia o simile. Questa cassa presenta al suo interno una guida per inserire una batteria, accumulatore di energia o simile. La forma parallelepipeda permette un uso più semplice del contenitore della batteria in particolare per la realizzazione di cosiddetti pacchetti di batterie. Nella cassa del contenitore che sono inseriti magneti in modo preferito magneti sono disposti rispettivamente a due sulle quattro pareti longitudinali e rispettivamente una sulla due pareti frontali. In modo vantaggioso i magneti disposti sulle due pareti frontali sono conducenti elettricamente e realizzano il contatto fra la batteria, accumulatore di energia o simile è un circuito esterno o con una ulteriore batteria, accumulatore di energia o simile. Per facilitare l’uso i magneti sono disposti in modo tale da attirarsi per formare un collegamento con polo positivo e il polo negativo e respingersi se vengono a contatto due poli positivi e/o due poli negativi ossia dello stesso segno o se richiesto a segni opposti anche solo per uno o due contatti. The battery container is formed by a parallelepiped case in which at least one battery or energy accumulator or the like is inserted or incorporates a battery, energy accumulator or the like. This case has a guide inside to insert a battery, energy accumulator or similar. The parallelepiped shape allows easier use of the battery container, in particular for making so-called battery packs. In the housing of the container which are inserted magnets, preferably magnets are arranged in pairs on the four longitudinal walls and respectively one on the two front walls. Advantageously, the magnets arranged on the two front walls are electrically conductive and make contact between the battery, energy storage or the like and an external circuit or with a further battery, energy storage or the like. To facilitate use, the magnets are arranged in such a way as to attract each other to form a connection with the positive pole and the negative pole and reject each other if two positive poles and / or two negative poles come into contact, i.e. of the same sign or, if required, opposite signs. even just for one or two contacts.
Vantaggiosamente anche sulle pareti longitudinali sono disposti magneti. In modo vantaggioso anche in questo caso i magneti permettono un collegamento in modo da allineare i poli positivi da un lato e i poli negativi dall’altro lato delle batteria, accumulatore di energia o simile se le casse di batterie vengono disposte lateralmente. In questo modo intuitivo si possono realizzare pacchetti di batterie a seconda della necessità. Advantageously, magnets are also arranged on the longitudinal walls. Advantageously in this case too, the magnets allow a connection in order to align the positive poles on one side and the negative poles on the other side of the battery, energy accumulator or the like if the battery boxes are arranged laterally. In this intuitive way, battery packs can be created as needed.
Questo può essere utile soprattutto se l’utilizzatore richiede un numero di batterie variabili a seconda della necessità senza poter realizzare un collegamento sbagliato. This can be especially useful if the user requires a number of batteries that vary according to need without being able to make a wrong connection.
In modo vantaggioso i magneti disposti sulle superfici frontali conducenti sono placcati con oro e/o un materiale di una lega altamente conducente. Advantageously, the magnets arranged on the leading face surfaces are plated with gold and / or a material of a highly conductive alloy.
Ulteriori caratteristiche e dettagli di una forma di realizzazione preferita e non limitativa dell'invenzione qui esposta saranno specificati con chiarezza nella descrizione che segue e con riferimento alle figure annesse nelle quali: Further characteristics and details of a preferred and non-limiting embodiment of the invention disclosed herein will be clearly specified in the following description and with reference to the attached figures in which:
- la figura 1 mostra una vista esplosa di un contenitore secondo l’invenzione, - Figure 1 shows an exploded view of a container according to the invention,
- la figura 2 mostra una vista prospettica di un contenitore secondo l’invenzione, - Figure 2 shows a perspective view of a container according to the invention,
- la figura 3 mostra una vista prospettica di una serie un contenitore secondo l’invenzione, - Figure 3 shows a perspective view of a series of a container according to the invention,
la figura 4 e 5 una sede per contenitori secondo l’invenzione, e la figura 6 una conformazione di contenitori secondo l’invenzione. Figure 4 and 5 a seat for containers according to the invention, and Figure 6 a conformation of containers according to the invention.
Come illustrato in figura 1 è indicato con il numero di riferimento 1 un contenitore per batterie 10 essendo formato da una cassa 2 parallelepipeda in cui viene inserita almeno un batteria 10 accumulatore di energia o simile o incorpora un batteria, accumulatore di energia o simile. Questa cassa 2 può presentare al suo interno una guida non illustrata per inserire una batteria 10, accumulatore di energia o simile. La forma parallelepipeda e permette un uso più semplice del contenitore della batteria in particolare per la realizzazione di cosiddetti pacchetti di batterie. Nella cassa 2 del contenitore 1 sono inseriti degli magneti 4,6 in modo preferito magneti sono disposte rispettivamente a due magneti 4 sulle quattro pareti longitudinali e rispettivamente un magnete 6 sulla due pareti frontali. As illustrated in Figure 1, the reference number 1 indicates a container for batteries 10 being formed by a parallelepiped case 2 in which at least one battery 10, energy storage or the like, is inserted or incorporates a battery, energy storage or the like. This case 2 can have inside it a guide (not shown) for inserting a battery 10, an energy accumulator or the like. The parallelepiped shape and allows for easier use of the battery container in particular for making so-called battery packs. In the case 2 of the container 1 magnets 4,6 are inserted, preferably magnets are arranged respectively with two magnets 4 on the four longitudinal walls and respectively one magnet 6 on the two front walls.
Per facilitare l’inserimento la cassa 2 è apribile e chiudibile da un lato da un coperchio 3. Su questo coperchio può essere disposto un magnete 6 che forma il contatto. Il coperchio in modo vantaggioso viene collegato per esempio mediante un collegamento a scatto To facilitate insertion, the case 2 can be opened and closed on one side by a lid 3. A magnet 6 which forms the contact can be placed on this lid. The cover is advantageously connected, for example, by means of a snap connection
In modo vantaggioso i magneti 6 disposti sulle due pareti frontali sono conducibili elettricamente e realizzano il contatto fra la batteria, accumulatore di energia o simile è un circuito esterno o con una ulteriore batteria, accumulatore di energia o simile. Fra la batteria 10 e il magnete 6 che forma il contatto è interposto uno inserto 5. Sono disposti due inserti all’interno della cassa 2 del contenitore. Questo inserto 5 forma rispettivamente cinque punti di contatto conducenti l’energia su sulle quattro pareti longitudinali e il primo inserto 5 sulla prima parete frontale 6 e il secondo inserto 5 sulla superficie opposta frontale 6 che almeno due di questi punti di contatto conducenti sono magnetici. Questo inserto forma una schermatura per evitare una interazione fra batteria accumulatore di energia o simile 10 e i magneti 4,6. Inoltre l’inserto può essere integrato nel coperchio 3 che chiude la cassa 2 del contenitore. Advantageously, the magnets 6 arranged on the two front walls are electrically conductive and make contact between the battery, energy accumulator or the like and an external circuit or with a further battery, energy accumulator or the like. An insert 5 is interposed between the battery 10 and the magnet 6 that forms the contact. Two inserts are arranged inside the case 2 of the container. This insert 5 respectively forms five contact points conducting the energy up on the four longitudinal walls and the first insert 5 on the first front wall 6 and the second insert 5 on the opposite front surface 6 that at least two of these leading contact points are magnetic. This insert forms a shield to avoid an interaction between the energy storage battery or the like 10 and the magnets 4,6. In addition, the insert can be integrated into the lid 3 which closes the case 2 of the container.
Per facilitare l’uso i magneti 4,6 sono disposti in modo tale da attirarsi per formare un collegamento con polo positivo e il polo negativo e respingersi se vengono a contatto due poli positivi e/o due poli negativi o se richiesto viceversa o solo con uno o due contatti che polo positivo negativo che si attirano per esempio quelli di testa. To facilitate use, the magnets 4,6 are arranged in such a way as to attract each other to form a connection with the positive pole and the negative pole and reject each other if two positive poles and / or two negative poles come into contact or if required vice versa or only with one or two contacts that positive negative pole that attract for example those of the head.
In questo modo possono essere formati conformazioni di batterie come illustrato in figura 3. In this way, battery conformations can be formed as illustrated in Figure 3.
Inoltre questa conformazione permette l’inserimento del contenitore in una sede per più batterie, accumulatori di energia o simile come illustrato nelle figure 4 e 5 e indicato con il numero di riferimento 100. Furthermore, this conformation allows the insertion of the container in a seat for multiple batteries, energy accumulators or the like as shown in figures 4 and 5 and indicated with the reference number 100.
I magneti evitano un inserimento sbagliato poiché grazie agli magneti viene generata una forza respingente se la conformazione non è corretta e una forza di attrazione nella posizione corretta. Perciò i magneti 4,6 che sono connessi con il polo positivo della batteria sono respingenti rispetto ai magneti 4,6 che sono connessi il polo negativo della batteria. Per migliorare il fissaggio possono essere previsti in aggiunta al collegamento magnetico un connettore 7 un collegamento a scatto o ad inserimento formando in questo modo un collegamento elettrico sicuro. The magnets avoid a wrong insertion because thanks to the magnets a repelling force is generated if the conformation is not correct and an attraction force in the correct position. Therefore the magnets 4,6 which are connected with the positive pole of the battery are repulsive with respect to the magnets 4,6 which are connected to the negative pole of the battery. To improve fastening, a snap-in or push-in connection 7 can be provided in addition to the magnetic connection, thus forming a secure electrical connection.
Inoltre tutti i collegamenti elettici possono essere rivestii con materiali particolarmente ben conducenti per esempio, oro, rame e altri metalli. Furthermore, all electrical connections can be coated with particularly well conductive materials for example, gold, copper and other metals.
E' infine chiaro che a quanto descritto nella presente invenzione possono essere applicate aggiunte, modifiche o varianti ovvie per un tecnico del ramo senza per questo fuoriuscire dall'ambito di tutela fornito dalle rivendicazioni annesse. Finally, it is clear that additions, modifications or variants that are obvious to a person skilled in the art can be applied to what is described in the present invention without thereby departing from the scope of protection provided by the appended claims.
Elenco dei numeri di riferimento: Reference number list:
1 contenitore per batterie accumulatore di energia o simile, 2 cassa 1 container for energy storage batteries or similar, 2 cases
3 coperchio 3 lid
4 magnete 4 magnet
5 inserto 5 insert
6 magnete 6 magnet
7 connettore 7 connector
10 batteria, accumulatore di energia o simile 100 sede 10 battery, energy storage or similar 100 seat
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT201800000303A IT201800000303A1 (en) | 2018-01-03 | 2018-01-03 | Container for realizing an improved connection between batteries and a configuration of batteries made by means of the connection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT201800000303A IT201800000303A1 (en) | 2018-01-03 | 2018-01-03 | Container for realizing an improved connection between batteries and a configuration of batteries made by means of the connection |
Publications (1)
Publication Number | Publication Date |
---|---|
IT201800000303A1 true IT201800000303A1 (en) | 2019-07-03 |
Family
ID=61873819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT201800000303A IT201800000303A1 (en) | 2018-01-03 | 2018-01-03 | Container for realizing an improved connection between batteries and a configuration of batteries made by means of the connection |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT201800000303A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080220293A1 (en) * | 2005-06-30 | 2008-09-11 | Koninklijke Philips Electronics, N.V. | Battery and Method of a Attaching Same to a Garment |
CN104953074A (en) * | 2014-03-27 | 2015-09-30 | 王怀云 | Magnetic connection structure of battery electrode |
US20170094823A1 (en) * | 2015-09-28 | 2017-03-30 | Shahram MONTAZERI | Apparatus having connection module for use with electrical module |
-
2018
- 2018-01-03 IT IT201800000303A patent/IT201800000303A1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080220293A1 (en) * | 2005-06-30 | 2008-09-11 | Koninklijke Philips Electronics, N.V. | Battery and Method of a Attaching Same to a Garment |
CN104953074A (en) * | 2014-03-27 | 2015-09-30 | 王怀云 | Magnetic connection structure of battery electrode |
US20170094823A1 (en) * | 2015-09-28 | 2017-03-30 | Shahram MONTAZERI | Apparatus having connection module for use with electrical module |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108463902A (en) | The battery pack of battery module including battery module and the vehicle including battery pack | |
CN208819951U (en) | Battery modules and its protection component | |
KR102265300B1 (en) | Charger having heat insulating structure | |
KR950034877A (en) | Battery unit and electronics equipped with this battery unit | |
CN104145375A (en) | Electrical connector with a push-in type contact | |
US10601022B2 (en) | Wiring module | |
WO2019154176A1 (en) | Battery power extraction and integration structure, battery pack and vehicle | |
CN104380551B (en) | Electric insulation shell, electric insulation arrangement and switchgear panel | |
US9768600B1 (en) | Branch box | |
CN103811693A (en) | Battery pack | |
JP2014203704A (en) | Power tool battery pack | |
EP2672733B1 (en) | Rechargeable battery pack | |
CN207731960U (en) | The battery pack of battery module including this battery module and the automobile for including this battery pack | |
IT201800000303A1 (en) | Container for realizing an improved connection between batteries and a configuration of batteries made by means of the connection | |
JP2004362874A (en) | Battery pack | |
JP5836871B2 (en) | Connector device and battery pack including the same | |
WO2019037366A1 (en) | Battery module | |
US2308270A (en) | "a" and "b" battery unit | |
CN211655232U (en) | Direct current socket of built-in fuse of vehicle-mounted refrigerator | |
JP6355557B2 (en) | Portable rechargeable power supply | |
JP3287046B2 (en) | Magnet plug and manufacturing method thereof | |
CN218301637U (en) | Magnetic hearing aid and magnetic hearing aid component | |
CN214480246U (en) | Shell structure for preventing electric connector from dropping | |
CN216794676U (en) | Power supply structure | |
JP3238528U (en) | Earphone charging case |