CN216022686U - Wrist-worn nerve stimulator - Google Patents

Abstract

The utility model discloses a wrist-worn nerve stimulator, which comprises a fixed host and a binding belt, wherein the fixed host comprises a shell, a circuit assembly and a screen assembly, the circuit assembly is electrically connected with the screen assembly, the bottom of the fixed host is provided with a charging interface and a switching interface, the bottom of the shell is also provided with a plurality of magnetic absorption grooves, each magnetic absorption groove is embedded with a magnet, the binding belt comprises an outer binding belt and an inner binding belt, the inner binding belt comprises a base and an electrode assembly, the electrode assembly comprises a plurality of electrode plates and a switching seat, the base is also provided with a plurality of circular magnetic absorption grooves matched with the plurality of magnetic absorption grooves, each circular magnetic absorption groove is embedded with a magnet, the magnets in the magnetic absorption grooves are in adsorption connection with the magnets in the circular magnetic absorption grooves, the switching seat is embedded in the switching interface, and the circuit assembly is electrically connected with the electrode assembly. The wrist-wearing type medical instrument has the advantages of small size, wearing type and waterproof function, can realize treatment at any time when the instrument is worn on the wrist, and can quickly assemble and disassemble the fixing host and the bridle, thereby facilitating the replacement of the bridle.

Description

Wrist-worn nerve stimulator

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a wrist-worn nerve stimulator.

Background

Electrical energy may be delivered percutaneously with a neurostimulation system via electrodes on the skin surface to stimulate peripheral nerves, such as the median, radial, and/or ulnar nerves in the upper limb, as non-limiting examples.

Electrical stimulation of these nerves has been shown to provide therapeutic benefits for a variety of diseases including, but not limited to, movement disorders (including, but not limited to, essential tremor, parkinsonian tremor, postural tremor, and multiple sclerosis), urological disorders, gastrointestinal disorders, cardiac disorders, and inflammatory disorders, among others.

The percutaneous electrical nerve stimulation method belongs to the peripheral electrical nerve stimulation treatment technology, and has the advantages of non-traumatism, non-invasion, easiness in operation, better tolerance, short action, no side effect, low price and the like, so that the percutaneous electrical nerve stimulation method becomes a hot spot of clinical application research and is widely applied, for example, various electrical nerve stimulation treatment instruments based on the percutaneous electrical nerve stimulation method.

Traditional nerve stimulation appearance, it is bulky, can not carry or be not portable, can't accomplish treatment at any time, can't accomplish individualized configuration according to individual actual conditions, it is complicated and troublesome to wear the process, wears very inconveniently, needs doctor professional to guide during the use, can't use in family daily, extensively promote more difficultly. The electrode slice used for contacting with the skin is easy to wear due to long-term friction with the skin, and the parameters of the electrode slice after wear change to influence the treatment effect, so the electrode slice belongs to an easily-consumed product.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wrist-worn nerve stimulator which has the advantages of small volume and convenience in wearing and solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a wrist-worn neurostimulator, comprising:

the fixed host comprises a shell, a circuit assembly and a screen assembly, wherein the circuit assembly is electrically connected with the screen assembly, the screen assembly and the shell are packaged through a waterproof sealing rubber strip, the circuit assembly is fixedly installed in the shell and comprises a lithium battery, a circuit board and a vibration motor arranged on the circuit board, a plurality of first threaded holes and a framework matched with the vibration motor are arranged in the shell, the vibration motor is embedded into the framework, a plurality of second threaded holes corresponding to the first threaded holes are arranged at four corners of the circuit board, the first threaded holes are fixedly connected with the second threaded holes through screws, the first threaded holes are blind holes, a charging interface and a transfer interface are arranged on the circuit board, a charging interface hole position and a transfer buckle hole position matched with the charging interface and the transfer interface respectively are arranged at the bottom of the shell, the charging interface and the transfer interface are respectively embedded into a charging interface hole site and a transfer buckle hole site, a gap between the charging interface and the charging interface hole site and a gap between the transfer interface and the transfer buckle hole site are packaged through sealant, the bottom of the shell is also provided with a plurality of magnetic attraction grooves, and a magnet is embedded in each magnetic attraction groove;

the binding belt comprises an outer binding belt and an inner binding belt, the inner binding belt comprises a base and an electrode assembly, the base is connected with the electrode assembly, the electrode assembly comprises a plurality of electrode plates and a switching seat, the electrode plates are sequentially connected through a FPC (flexible printed circuit) flat cable, the outermost electrode plate is arranged at the bottom of the base and protrudes out of the bottom of the base, the outer sides of the other electrode plates and the FPC flat cable are wrapped with a sealing layer, the electrode plates on the sealing layer protrude out of the inner wall of a sealing strip, one side of the sealing layer, far away from the base, is provided with an open buckle which is buckled on the outer binding belt, the switching seat is arranged on the base and is electrically connected with the FPC flat cable, the base is also provided with a plurality of circular magnetic suction grooves matched with the plurality of magnetic suction grooves, each circular magnetic suction groove is embedded with a magnet, and the magnets in the plurality of magnetic suction grooves are connected with the magnets in the plurality of circular magnetic suction grooves in an adsorbing manner, the adapter is embedded into the adapter, the circuit assembly is electrically connected with the electrode assembly, two ends of the outer belt are movably connected with the front side and the rear side of the fixed host, the outer belt and the fixed host form a ring shape, and the inner belt is wrapped in the ring shape.

Preferably, the screen assembly comprises a display screen and a display interface flat cable, the display screen is connected with the circuit board through the display interface flat cable, a glass cover plate is arranged on the display screen, and a transparent frosted area is arranged at one corner of the glass cover plate.

Preferably, the circuit board side is provided with a plurality of micro-gap switches, the casing side is provided with a plurality of buttons with micro-gap switch looks adaptation, button and casing straight line sliding clearance fit, be provided with reset spring and waterproof sealing circle between button and the casing, it is a plurality of micro-gap switch is with a plurality of the button is inconsistent, still be provided with on the circuit board and charge butt contact and switching interface butt contact, charge the butt contact with charge the interface connection, be provided with many pogopin spring guide pins on the switching interface, pogopin spring guide pin and switching interface butt contact connection on the switching interface, two blocks of magnetite of embedded in the mouth that charges.

Preferably, the circuit board comprises a microprocessor, an electrical appliance management unit, a communication unit, a tremor detection unit, a key and display unit, a vibration unit, a data storage unit, an inertia sensing unit, an ambient light detection circuit, a wrist strap detection circuit, an impedance detection circuit and an electrical stimulation circuit, wherein the electrical appliance management unit, the communication unit, the tremor detection unit, the key and display unit, the vibration unit, the data storage unit, the inertia sensing unit, the ambient light detection circuit, the wrist strap detection circuit, the impedance detection circuit and the electrical stimulation circuit are all electrically connected with the microprocessor, the circuit board is further provided with a high-voltage circuit, the high-voltage circuit is all connected with the circuit management unit and the electrical stimulation circuit, and the communication unit is connected with the circuit management unit.

Preferably, the casing bottom be provided with base looks adaptation spacing groove, wherein the switching mouth is inhaled the trench with a plurality of magnetism and is located the spacing inslot, casing bottom edge is the fillet form, be from interior to exterior, ascending inclined plane gradually between fillet form and the spacing groove, be provided with corresponding living ear seat around the casing on the terminal surface.

Preferably, outer tie strap includes fabric tie strap and first engaging lug, fabric tie strap both ends are connected with second engaging lug and tail knot respectively, be equipped with the rectangular hole on the first engaging lug, the one end that the fabric tie strap is close to the tail knot passes behind the rectangular hole of overlength and bonds through the magic subsides with the fabric tie strap outside, wherein first engaging lug and second engaging lug respectively with fixed host computer around the living ear seat swing joint of both sides.

Preferably, the base upper cover is equipped with the enhancement apron, the base side is connected with the flap that charges, it is provided with the disc sheet groove to charge to cover, the embedded disc sheet that is equipped with in disc sheet groove, this disc sheet upper surface and the surperficial coincidence of the flap that charges, disc sheet upper surface and the embedded magnetite adsorption connection of the interface that charges, be provided with many pogopin spring guide pins on the adapter, pogopin spring guide pin on the adapter is connected with the pogopin spring guide pin contact on the adapter.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the fixing host and the base are arranged, the base is inserted into the limiting groove, the adapter is embedded into the adapter, the pogopin spring guide pin on the adapter is in contact connection with the pogopin spring guide pin on the adapter, the magnet in the magnetic suction groove and the magnet in the circular magnetic suction groove are mutually adsorbed and connected, the fixing host and the bridle are fixedly installed, and the buckle is buckled on the outer bridle, so that the quick installation effect of the inner bridle, the fixing host and the outer bridle can be realized.

2. According to the utility model, the shell is arranged, and the shell and the screen assembly, the shell and the key, the shell and the charging interface and the shell and the switching interface are sealed by the sealant, so that the fixed host has a waterproof effect, and the integral waterproof performance of the nerve stimulator is improved.

3. According to the utility model, by arranging the belt, the inner belt with the electrode plates matched in length and curvature can be selected according to the size and curvature of the wrist diameter of the user, and the electrode plates on the inner belt can be fully attached to the skin of the user and fixed by adjusting the outer belt.

4. The charging interface is arranged at the bottom of the shell, and due to the shielding of the wrist, a user can be prevented from using the charging interface while charging, and the product safety is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a stationary host according to the present invention;

FIG. 3 is an exploded view of the stationary host of the present invention;

FIG. 4 is a partial cutaway view of the housing of the present invention;

FIG. 5 is a schematic view of a screen assembly according to the present invention;

FIG. 6 is a schematic view of a band according to the present invention;

FIG. 7 is an exploded view of the present invention tie strip;

FIG. 8 is a schematic view of the construction of an outer belt according to the present invention;

FIG. 9 is a first usage state diagram of the present invention;

FIG. 10 is a second state diagram of the present invention;

FIG. 11 is a third state diagram of the present invention;

fig. 12 is a fourth usage state diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, an embodiment of the present invention includes: a wrist-worn neurostimulator, comprising:

the fixed host 1 comprises a shell 2, a circuit assembly 3 and a screen assembly 4, wherein the circuit assembly 3 is electrically connected with the screen assembly 4, the screen assembly 4 and the shell 2 are packaged by a waterproof sealing adhesive tape, the circuit assembly 3 is fixedly installed in the shell 2, the circuit assembly 3 comprises a lithium battery 31, a circuit board 32 and a vibration motor 33 arranged on the circuit board 32, a plurality of first threaded holes 29 and a framework 35 matched with the vibration motor 33 are arranged in the shell 2, the vibration motor 33 is embedded in the framework 35, a plurality of second threaded holes 36 corresponding to the first threaded holes 29 are arranged at four corners of the circuit board 32, the plurality of first threaded holes 29 are fixedly connected with the plurality of second threaded holes 36 through screws, the first threaded holes 29 are blind holes, a charging port 34 and a transfer port 37 are arranged on the circuit board 32, a charging port hole site 24 and a transfer buckle 27 which are respectively matched with the charging port 34 and the transfer port 37 are arranged at the bottom of the shell 2, the charging interface 34 and the adapter interface 37 are respectively embedded into the charging interface hole site 24 and the adapter buckle hole site 27, a gap between the charging interface 34 and the charging interface hole site 24 and a gap between the adapter interface 37 and the adapter buckle hole site 27 are packaged through sealant, the bottom of the shell 2 is also provided with a plurality of magnetic attraction grooves 21, and a magnet is embedded in each magnetic attraction groove 21; wherein, the fixed host 1 and the electronic equipment are in wireless connection through Bluetooth.

The belt 5, the belt 5 includes an outer belt 6 and an inner belt 10, the inner belt 10 includes a base 7 and an electrode assembly 8, the base 7 is connected with the electrode assembly 8, the electrode assembly 8 extends outward from one side of the base, the electrode assembly 8 includes a plurality of electrode sheets 81 and a connector 82, the plurality of electrode sheets 81 are sequentially connected through a Flexible Printed Circuit (FPC) cable 83, wherein the outermost electrode sheet 81 is disposed at the bottom of the base 7 and protrudes from the bottom of the base 7, the electrode sheet 81 is a planar electrode sheet, the rest of the electrode sheets 81 and the FPC cable 83 are coated with a sealing layer 9, the electrode sheet 84 on the sealing layer 9 protrudes from the inner wall of the sealing layer 9, one side of the sealing layer 9 away from the base 7 is provided with an open buckle 93, the buckle 93 is two opposite 'Contraband' shapes, the buckle 93 buckles the outer belt 6, and the buckle 93 is made of a soft rubber material, the connector 82 is disposed on the base 7, the connector 82 is electrically connected with the FPC cable 83, the base 7 is further provided with a plurality of circular magnetic attraction grooves 71 matched with the plurality of magnetic attraction grooves 21, each circular magnetic attraction groove is embedded with a magnet 71, the magnets in the plurality of magnetic attraction grooves 21 and the magnets in the plurality of circular magnetic attraction grooves 71 are connected in an adsorption mode, the adapter 82 is embedded into the adapter port 37, and the circuit assembly 3 is electrically connected with the electrode assembly 8.

The sealing layer 9 includes an inner band main body 91 and an outer adhesive layer 92, the FPC cable 83 is disposed between the inner band main body 91 and the outer adhesive layer 92, the inner band main body 91 is connected to the outer adhesive layer 92 in a sealing manner and covers the FPC cable 83, and the electrode sheet 84 penetrates through the outer adhesive layer 92.

Preferably, the screen assembly 4 includes a display screen 41 and a display interface cable 42, the display screen 41 is connected to the circuit board 32 through the display interface cable 42, a glass cover plate 43 is disposed on the display screen 41, and a transparent frosted area 44 is disposed at one corner of the glass cover plate 43.

Preferably, a plurality of micro-switches 38 are disposed at the side end of the circuit board 32, a plurality of keys 28 adapted to the micro-switches 38 are disposed at the side end of the housing 2, the keys 28 are in linear sliding clearance fit with the housing 2, a return spring (not shown) and a waterproof sealing ring (not shown) are disposed between the keys 28 and the housing 2, the micro-switches 38 contact with the keys 28, the circuit board 32 is further provided with a charging contact 341 and an adaptor contact 371, the charging contact 341 is connected with the charging interface 34, the adaptor 37 is provided with a plurality of pogopin spring guide pins, the pogopin spring guide pins on the adaptor 37 contact with the adaptor contact 371, the housing 2 and the screen assembly 4, the housing 2 and the keys 28, the housing 2 and the charging interface 34, and the housing 2 and the adaptor 37 are sealed by a sealant, so that the fixed host 1 has a waterproof effect, the overall waterproofness of the nerve stimulator is improved.

Preferably, the bottom of the shell 2 is provided with a limit groove 22 matched with the base 7, wherein the adapter 37 and the plurality of magnetic attraction grooves 21 are located in the limit groove 22, the edge of the bottom of the shell 2 is in a round angle shape, an inclined plane which gradually faces upwards from inside to outside is arranged between the round angle shape and the limit groove, and the front end surface and the rear end surface of the shell 2 are provided with corresponding lug generating seats 23.

Preferably, outer tie 6 includes fabric band 61 and first engaging lug 62, and fabric band 61 both ends are connected with second engaging lug 63 and tail knot 64 respectively, are equipped with rectangular hole 65 on the first engaging lug 62, and the fabric band 61 is close to and passes behind the rectangular hole 65 behind the one end of tail knot 64 and passes through the rectangular hole 65 and bond through the magic subsides with the fabric band 61 outside, and wherein rotatable coupling is done through the pivot with the living ear seat 23 of fixed host computer 1 front and back both sides respectively to first engaging lug 62 and second engaging lug 63.

Preferably, base 7 upper cover is equipped with strengthens apron 72, the base 7 side is connected with charging port lid 73, be provided with disc sheet groove 74 on the charging port lid 73, the embedded disc sheet that is equipped with in disc sheet groove 74, this disc sheet upper surface and the surperficial coincidence of charging port lid, disc sheet upper surface and the embedded magnetite of charging port adsorb and be connected, be provided with many pogopin spring guide pins on the adapter 82, pogopin spring guide pin on the adapter 82 is connected with the contact of pogopin spring guide pin on the adapter 37.

The working principle is as follows: referring to fig. 9 to 12, the fixing host 1 is installed in cooperation with the base 7, the base 7 is inserted into the limiting groove 22, the adaptor 11 is embedded into the adaptor port 37, the pogopin spring guide pin on the adaptor 11 is connected with the pogopin spring guide pin on the adaptor port 37 in a contact manner, the fixing host 1 is electrically connected with the electrode assembly 8, the magnet in the magnetic attraction groove 21 and the magnet in the circular magnetic attraction groove 12 are mutually attracted and connected, the fixing host 1 and the base 7 on the inner strap 10 are installed and fixed, the inner strap 10 is wrapped on the inner side of the outer strap 6, the buckle 93 is buckled on the outer strap 6, then the outer strap 6 and the inner strap 10 are worn on the wrist, the annular diameter formed by the fixing host 1 and the outer strap 6 is contracted to the inner side by tightening one end of the fabric strap 63 close to the tail knot 64, so that the electrode sheet 81 on the electrode assembly 8 is connected with the skin of a user in a contact manner, the outer strap 6 is jointed with the inner strap 10, one end of the fabric strap 61 close to the tail knot 64 is stuck on the outer side of the fabric strap 61 through magic tape 61, finally, the function is started and selected by pressing the key 28 at the side end of the shell 2, the power supply of the lithium battery 31 is output through the circuit board 32, is output to the electrode assembly 8 through the adapter 37 and the adapter 11, and is used for treating the personalized stimulation mode and the pulse parameters output according to different user physical signs through the electrode plate 81.

According to the utility model, the magnets in the magnetic attraction grooves 21 and the magnets in the circular magnetic attraction grooves 12 are mutually connected in an adsorption manner, and the base 7 and the limiting groove 22 are installed in a matching manner, so that the inner binding belt 10 and the fixed host 1 can be quickly installed, and the inner binding belt 10 can be directly pulled away during disassembly, thereby facilitating the replacement of the inner binding belt 10.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. A wrist-worn neurostimulation apparatus, comprising: the method comprises the following steps:

the fixed host comprises a shell, a circuit assembly and a screen assembly, wherein the circuit assembly is electrically connected with the screen assembly, the screen assembly and the shell are packaged through a waterproof sealing rubber strip, the circuit assembly is fixedly installed in the shell and comprises a lithium battery, a circuit board and a vibration motor arranged on the circuit board, a plurality of first threaded holes and a framework matched with the vibration motor are arranged in the shell, the vibration motor is embedded into the framework, a plurality of second threaded holes corresponding to the first threaded holes are arranged at four corners of the circuit board, the first threaded holes are fixedly connected with the second threaded holes through screws, the first threaded holes are blind holes, a charging interface and a transfer interface are arranged on the circuit board, a charging interface hole position and a transfer buckle hole position matched with the charging interface and the transfer interface respectively are arranged at the bottom of the shell, the charging interface and the transfer interface are respectively embedded into a charging interface hole site and a transfer buckle hole site, a gap between the charging interface and the charging interface hole site and a gap between the transfer interface and the transfer buckle hole site are packaged through sealant, the bottom of the shell is also provided with a plurality of magnetic attraction grooves, and a magnet is embedded in each magnetic attraction groove;

the binding belt comprises an outer binding belt and an inner binding belt, the inner binding belt comprises a base and an electrode assembly, the base is connected with the electrode assembly, the electrode assembly comprises a plurality of electrode plates and a switching seat, the electrode plates are sequentially connected through a FPC (flexible printed circuit) flat cable, the outermost electrode plate is arranged at the bottom of the base and protrudes out of the bottom of the base, the outer sides of the other electrode plates and the FPC flat cable are wrapped with a sealing layer, the electrode plates on the sealing layer protrude out of the inner wall of a sealing strip, one side of the sealing layer, far away from the base, is provided with an open buckle which is buckled on the outer binding belt, the switching seat is arranged on the base and is electrically connected with the FPC flat cable, the base is also provided with a plurality of circular magnetic suction grooves matched with the plurality of magnetic suction grooves, each circular magnetic suction groove is embedded with a magnet, and the magnets in the plurality of magnetic suction grooves are connected with the magnets in the plurality of circular magnetic suction grooves in an adsorbing manner, the adapter is embedded into the adapter, the circuit assembly is electrically connected with the electrode assembly, two ends of the outer belt are movably connected with the front side and the rear side of the fixed host, the outer belt and the fixed host form a ring shape, and the inner belt is wrapped in the ring shape.

2. The wrist-worn neurostimulation apparatus of claim 1, wherein: the screen assembly comprises a display screen and a display interface flat cable, the display screen is connected with the circuit board through the display interface flat cable, a glass cover plate is arranged on the display screen, and a transparent frosted area is arranged at one corner of the glass cover plate.

3. The wrist-worn neurostimulation apparatus of claim 1, wherein: the circuit board side is provided with a plurality of micro-gap switches, the casing side is provided with a plurality of buttons with micro-gap switch looks adaptation, button and casing straight line sliding clearance fit, be provided with reset spring and waterproof sealing circle between button and the casing, it is a plurality of micro-gap switch is with a plurality of the button is inconsistent, still be provided with on the circuit board and charge butt contact and switching interface butt contact, charge the butt contact with charge the interface connection, be provided with many pogopin spring guide pins on the switching interface, pogopin spring guide pin and switching interface on the switching interface are to contact connection, two blocks of magnetite of embedded in the mouth charges.

4. A wrist-worn neurostimulation apparatus according to any one of claims 1 to 3, wherein: the circuit board comprises a microprocessor, an electric appliance management unit, a communication unit, a tremor detection unit, a key and display unit, a vibration unit, a data storage unit, an inertia sensing unit, an ambient light detection circuit, a wrist strap detection circuit, an impedance detection circuit and an electrical stimulation circuit, wherein the electric appliance management unit, the communication unit, the tremor detection unit, the key and display unit, the vibration unit, the data storage unit, the inertia sensing unit, the ambient light detection circuit, the wrist strap detection circuit, the impedance detection circuit and the electrical stimulation circuit are all electrically connected with the microprocessor, the circuit board is further provided with a high-voltage circuit, the high-voltage circuit is all connected with the circuit management unit and the electrical stimulation circuit, and the communication unit is connected with the circuit management unit.

5. The wrist-worn neurostimulation apparatus of claim 1, wherein: the utility model discloses a novel lug seat, including casing, base, switching mouth, limiting groove, casing bottom, connecting port, limiting groove, the casing bottom is provided with the base looks adaptation limiting groove, and wherein switching mouth and a plurality of magnetism inhale the trench in the limiting groove, casing bottom edge is the fillet form, be from interior to exterior, ascending inclined plane gradually between fillet form and the limiting groove, be provided with corresponding ear seat around the casing on the terminal surface.

6. The wrist-worn neurostimulation apparatus of claim 1, wherein: outer tie strap includes fabric band and first engaging lug, fabric band both ends are connected with second engaging lug and tail knot respectively, be equipped with the rectangular hole on the first engaging lug, the one end that the fabric band is close to the tail knot is passed behind the rectangular hole and is passed through the magic with the fabric band outside and paste the bonding, wherein first engaging lug and second engaging lug respectively with fixed host computer around the living ear seat swing joint of both sides.

7. The wrist-worn neurostimulation apparatus of claim 1, wherein: the base upper cover is equipped with the enhancement apron, the base side is connected with the flap that charges, it is provided with the disc groove to charge to cover, the embedded disc that is equipped with in disc groove, the surperficial coincidence of this disc upper surface and the flap that charges, disc upper surface and the embedded magnetite of the interface that charges adsorb and be connected, be provided with many pogopin spring guide pins on the adapter, pogopin spring guide pin on the adapter is connected with the pogopin spring guide pin contact on the adapter.

Images