96results about How to "To achieve electrical conduction" patented technology

The invention discloses a remote radio unit (RRU) and a standard connecting component and relates to the field of wireless communication. The remote radio unit and standard connecting component is used for solving a multiplexing problem of products, improving maintenance and upgrade efficiency of the RRU and saving resources. The RRU comprises a heat dissipation module and a main engine module which are connected through the standard connecting component. Heat produced by the main engine module is transmitted to the heat dissipation module through the standard connecting component to dissipate heat. By adopting the remote radio unit and standard connecting component, the heat dissipation module can be flexibly assembled according to heat dissipation requirements of the main engine module of the RRU, and therefore the multiplexing problem of the products with different property can be solved, maintenance and upgrade efficiency of the RRU can be improved and the resources are saved.

The invention provides a camera module, an electrical bracket and an assembly method and an application thereof. The camera module comprises an optical lens, a photosensitive chip and the electrical bracket, wherein the optical lens is located above the photosensitive chip, and the photosensitive chip is electrically connected with the electrical bracket by implanting a metal ball, for example, a copper ball, so as to effectively save the cost and guarantee the electrical connection performance.

The invention discloses a camera module and electronic equipment, and relates to the field of electronic products. The camera module comprises a lens module; a first substrate, the lens module is arranged on the first substrate; a circuit board, the first substrate is fixed on the circuit board, and the first substrate and the circuit board are electrically connected; a second substrate which is arranged between the first substrate and the circuit board; a first rolling body which is arranged between the first base plate and the second base plate; a second rolling body which is arranged between the second substrate and the circuit board; a driving module which is connected with the second substrate; a connecting piece which is electrically connected with the first substrate and the second substrate; and the photosensitive chip is fixed on the second substrate and is arranged opposite to the lens module, and the photosensitive chip is electrically connected with the second substrate. The electronic equipment comprises the camera module. The problem that the shooting effect is affected by camera inclination is solved.

The invention discloses a flexible-rigid circuit board and a mobile terminal. The flexible-rigid circuit board comprises a printed circuit board and a flexible circuit board, wherein the printed circuit board is provided with a wiring part and a connecting slot; the connecting slot is formed in one side of the printed circuit board and far from the wiring part; the flexile circuit board comprises a body, and a first side plate and a second side plate connected to the body; the second side plate is positioned on one side of the first side plate; the first side plate and the second side plate are provided with a terminal and a connector respectively; the first terminal is crimped on the wiring part and electrically connected with the wiring part; and the second side plate is laminated on the printed circuit board, so that the connector is clamped in the connecting groove. According to the flexible-rigid circuit board provided by the invention, the second side plate is provided with the connector, the second side plate is laminated on the printed circuit board, and the connector is clamped in the connecting groove of the printed circuit board, so that when the connector is moved to a main board in a wiring manner, the connector is positioned on the second side plate constantly; and therefore, the impedance environment is unchanged, and the impendence continuity of the connector in wiring is ensured.

The invention discloses a self-heat-dissipation system for a switched reluctance motor. The self-heat-dissipation system comprises a switch reluctance motor shell, the switch reluctance motor shell issleeved with a fixing plate., the fixed plate is fixedly connected with the switched reluctance motor shell, a heat conduction plate is fixedly connected to the inner side of the fixed plate, a cooling pipeline is arranged in the heat conduction plate, a circulating water cooling mechanism communicated with the cooling pipeline is arranged on the outer side of the fixing plate, a rear cover shellis arranged at the rear end of the switched reluctance motor shell, the switched reluctance motor shell is detachably connected with the rear cover shell through a mounting mechanism, and a heat dissipation mechanism is arranged in the rear cover shell. The self-heat-dissipation system is reasonable in structural design, the purpose of circuit conduction is achieved through mercury rising along with temperature rising of the switched reluctance motor, the good heat dissipation effect of air cooling heat dissipation and water cooling heat dissipation is achieved, the temperature in the switched reluctance motor shell is prevented from being too high, and operation of the switched reluctance motor is facilitated.

The invention relates to a nuclear phase device and an electroscope used in cooperation with the nuclear phase device. The nuclear phase device comprises a chassis vehicle, a vehicle body and at least one leaf electrometer arm, wherein the two sides of the chassis vehicle are provided with an interlocking device used for opening a high-voltage switch cabinet insulating baffle and a grounding device being matched with a grounding insertion hole of a high-voltage switch cabinet respectively, the vehicle body is perpendicularly fixed on the chassis vehicle, each leaf electrometer arm is arranged to be parallel to the chassis vehicle, one end of each leaf electrometer arm is fixed on the vehicle body, and the other end of each leaf electrometer arm makes contact with a power supply fixed contact of the high-voltage switch cabinet; each leaf electrometer arm comprises a contact arm, a contact and metal rod, wherein the contact and the metal rod are fixed at the two ends of the contact arm, the contact is matched with the power supply fixed contact and suitable for being inserted into the power supply fixed contact, the conductive connection between the contact and the metal rod is achieved through the contact arm, and the metal rod perpendicularly penetrates through the inner side faces of the vehicle body and penetrates out from the outer side face. When nuclear phase is performed, an operating worker uses a leaf electrometer rod or the electroscope to probe the interior of a leaf electrometer inserting hole, then the nuclear phase is directly performed, the problem that in the prior art, when faults occur to a sensor and other components, an actual voltage signal can not be acquired to perform the nuclear phase is solved, and safety accidents are avoided.

The invention provides a manufacturing method of OLED (Organic Light Emitting Diodes) devices. The manufacturing method of OLED devices includes the steps: setting a cathode contact layer which is partitioned from an anode layer on a substrate, and setting a cathode contact hole, on a pixel definition layer, corresponding to the upward side of the cathode contact layer, wherein during the manufacturing process, an electron transmission layer extends into the cathode contact hole from a pixel opening to separate a cathode layer from the cathode contact layer; before the device works normally, for electric conduction between the cathode contact layer and the cathode layer, applying positive voltage with equal potential to the cathode layer and the anode layer, and at the same time applying avoltage less than the potential of the cathode layer to the cathode contact layer to enable the potential difference to be formed between the cathode contact layer and the cathode layer, wherein theelectron transmission layer is broken down under the effect of an electric field so as to be conducted, so as to realize electric conduction of the cathode layer and the cathode contact layer; and when an OLED device is working, the cathode contact hole layer can directly provide voltage and current compensation for the cathode layer so as to prevent a display panel of the OLED device encounteringa large area of voltage drop to cause non-uniform brightness.

The invention provides a battery connector structure, in particular the battery connector structure used in portable electronic equipment and having an insulating barrier. When the electronic equipment and a power supply battery of the electronic equipment are in a matched using state, a temporary insulating state is formed between a plug connector and a socket connector of the battery connector of the electronic equipment through the installation of the insulating barrier body before use. The battery connector structure has the effects of saving package materials, space and assembling steps in use.

The invention discloses an LED injection molding module, and relates to the field of novel LED lighting. The LED injection molding module mainly comprises a PCB provided with a plurality of LED lamp beads, a U-type wire clamp, an electronic wire and an injection molding outer shell. A wire clamping groove in one end of the U-type wire clamp is electrically communicated with the electronic wire, a rectangular copper piece at the other end of the U-type wire clamp is in compression contact with a rectangular welding disc on the PCB through pressure generated by the elastic modulus deformation, the electric communication between the electronic wire and the PCB is achieved through the U-type wire clamp, the injection molding outer shell tightly wraps the whole PCB through a sealing waterproof mode, and through holes which allow the electronic wire to penetrate are formed in the two ends of the outer shell. The LED injection molding module is simple in structure, convenient to assemble, simple in production process, low in production cost, high in production efficiency and suitable for large-scale batch production.

The invention discloses a building block type early education machine which comprises a plurality of building blocks and a host, wherein different content is recorded on the surfaces of the building blocks, the building blocks can be attracted mutually and are electrically conducted through metal terminals, the building blocks and the host can be attracted and are electrically conducted through metal terminals, and after the building blocks and the host are connected in an attracted mode, the host can identify different building blocks and play audio files corresponding to the building blocks. According to the scheme, the early education machine is electrically conducted through attraction of the host and the building blocks, therefore related audio files correspondingly stored on the early education machine can be read, and the building blocks can be piled and spliced. The building block type early education machine has a great significance in early education of underage children and plays edutainment to the maximum degree. In particular, the building blocks and the host are spliced, and the early education machine is ingenious in structural design, convenient to manufacture, easy to splice, detach and replace and stable in connection and has extremely high practicability and entertainment.

The invention discloses an insulating discharge rod for a capacitor. Maintenance personnel can discharge a capacitor under the condition that an insulating sheath is not dismounted. The insulating discharge rod comprises at least one discharge part; each discharge part comprises two discharge contacts, two discharge terminals, a conductive steel plate and a wire; the discharge terminals are arranged at one ends, far away from the conductive steel plates, of the discharge contacts; the length of the discharge contacts is larger than the depth of the insulating sheath of the capacitor, and the wires are connected with the ground and used for releasing charges. When discharge is required, the discharge contacts extend into the insulating sheath of the capacitor, the width of the discharge contacts ensures that the discharge contacts can extend into the insulating sheath, and the length of the discharge contacts ensure that the discharge terminals can be in contact with the electrical terminal of the capacitor, thereby realizing electrical conduction. The discharge terminals conduct charges to the conductive steel plates, the conductive steel plates are connected with the wires, the wires are connected with the ground, the charges in the capacitor are released to the ground, and the function that the capacitor can be discharged without detaching the insulating sheath of the capacitor is achieved.

Provided is a method for manufacturing a rigid-flexible circuit board. The method includes the following steps of: providing a flexible circuit board having a first conductive circuit and including a bent area and a fixed area; providing a rigid circuit board, wherein a first opening corresponding to the bent area is arranged inside the rigid circuit board, the rigid circuit board is provided with a third conductive circuit corresponding to the first conductive circuit, and a metal bump is formed on the third conductive circuit; providing a first adhesive piece, a second adhesive piece and copper foils, wherein a third opening corresponding to the bent area is formed inside the first adhesive piece; sequentially stacking and pressing the copper foils, the second adhesive piece, the rigid circuit board, the first adhesive piece and the flexible circuit board, wherein the first opening and the third opening are mutually communicated, and the metal bump and the first conductive circuit on the surface of the flexible circuit board are mutually and electrically communicated; manufacturing the copper foil corresponding to the fixed area into an outer-layer circuit; and removing the copper foil corresponding to the bent area and the second adhesive piece to obtain the rigid-flexible circuit board.

The invention discloses a circuit board connection structure and a mobile terminal. The circuit board connection structure comprises a circuit board and a flexible printed circuit board. Spring sheets are arranged on the circuit board. The flexible printed circuit board comprises a base material layer, a copper foil layer, a weld disc and a conductive layer. The copper foil layer is arranged on the base material layer. The weld disc is arranged on the copper foil layer. The conductive layer is laminated on the weld disc. The conductive layer is abutted against the spring sheets, thereby achieving electrical connection between the weld disc and the spring sheets. According to the invention, by arranging the conductive layer on the weld disc and abutting the conductive layer against the spring sheets, electrical connection between the weld disc and the spring sheets can be ensured, thereby achieving electrical conduction between the flexible printed circuit board and the circuit board; and a damage which easily occurs to the weld disc caused by a direct contact between the spring sheets and the weld disc can be avoided. In addition, the conductive layer is additionally arranged on the weld disc directly, so when there are spring sheets corresponding to the weld disc, a problem of a bad contact caused by errors and omissions which easily occur when the weld disc is abutted against the spring sheets one by one can be avoided, and reliability of the electrical connection between the flexible printed circuit and the circuit board is ensured.

The invention provides a probe card, a detecting device and a wafer detecting method. The probe card comprises a circuit board with a hole with a conductive pattern, an image receiving component which is arranged on the first side of the circuit board, a probe assembly which is arranged on the second side of the circuit board, and an optical shaping element which is arranged on one side of the image receiving component. The probe assembly of the probe card electrically contacts a light source chip on a wafer to electrically turn on the light source chip. Through the image receiving component and the optical shaping element, optical performance detection of the light source chip can be realized. According to the invention, detection and quality screening of the light source chip can be realized at the wafer level; optical performance detection and electrical performance detection are simultaneously carried out on the light source chip; the detection efficiency is improved; and the production cost is reduced.

The invention discloses an underwater anti-drop socket and a plug, comprising a waterproof base, wherein the waterproof base comprises a base body and a socket assembly; each socket assembly comprisesa socket hole and an oval baffle. The socket body comprises a socket hole and an oval baffle; a water-proof cover, wherein an elastic clamp is arranged below the water-proof cover. The elastic clamping member comprises a compression spring positioning block, a compression spring, a clamping plate and an annular limiting plate. The outer wall of the clamping plate is in contact with the inner wallof the elliptical baffle; Circuit structure, the circuit structure is sealed and fixed in the base body with sealant layer, the circuit structure on both sides of each jack component is provided withmulti-stage connection terminals, and the movable edge of the multi-stage connection terminals is provided with circuit connection holes. The plug is matched with the socket, has good sealing property and can be used in deep water environment.

The invention discloses a flexible skin sensor and a collision detection system. The flexible skin sensor comprises two conductive layers formed by a flexible conductive material and an insulating isolation net positioned between the two conductive layers, and the two conductive layers contact when being squeezed by external force to be electrically on to enable a signal transmission circuit connected with the conductive layers to be on to output a collision signal. The flexible skin sensor can detect collision and play a role in buffering and is simple and reliable in structure, safe to use,low in cost and convenient for maintenance.

A circuit board with an embedded electronic component comprises an internal circuit substrate, the electronic component, a first layer-adding substrate and a second layer-adding substrate. The internal circuit substrate is provided with a first surface and a second surface which are opposite. At least two connecting pads are formed on one side of the first surface. An accommodating hole penetrating the first surface and the second surface is formed in the internal circuit substrate. The electronic component comprises a body and at least two welding terminals. Each welding terminal is connected with one corresponding electrode pad of the body. The body is accommodated in the accommodating hole. The welding terminals are in one-to-one correspondence to the connecting pads. Each welding terminal is parallel with the first surface, extends out of the accommodating hole and is welded with the corresponding connecting pad. The first layer-adding substrate is formed on one side of the first surface. The second layer-adding substrate is formed on one side of the second surface. The electronic component is fixed between the first layer-adding substrate and the second layer-adding substrate. The invention further provides a manufacturing method of the circuit board with the embedded electronic component.

The invention provides a gas-insulated metal-enclosed power transmission line and an axial expansion joint thereof. The axial expansion joint comprises a first corrugated pipe, a second corrugated pipe and a third corrugated pipe which are coaxially and sequentially connected to form a short cylindrical structure, and flange structures are arranged at the two opposite ends of the short cylindricalstructure and used for being connected with two pipe section outer cylinders of the gas-insulated metal-enclosed power transmission line respectively. The axial expansion joint further comprises a pull rod component composed of a first pull rod and a second pull rod, the first pull rod penetrates the flange structure between the first corrugated pipe and the second corrugated pipe in a sliding mode, and the two ends of the first pull rod are fixedly connected to the flange structure of the first corrugated pipe and the flange structure between the second corrugated pipe and the third corrugated pipe respectively; the second pull rod penetrates the flange structure between the second corrugated pipe and the third corrugated pipe in a sliding mode, and the two ends of the second pull rod are fixedly connected to the flange structure between the first corrugated pipe and the second corrugated pipe and the flange structure of the third corrugated pipe respectively. The axial expansion joint has a large axial compensation amount, and good stability during expansion and contraction is guaranteed.

The invention discloses a preparation method of a composite current collector, which comprises the following steps of: firstly, forming plating layers on two side surfaces of an insulating support layer in a film coating manner, and reserving blank areas on the two side surfaces of the insulating support layer and on the two sides of the plating layers, namely, the plating layers are positioned between the blank areas on the two sides; and then the inner ends of the metal foils are connected to the blank areas on the two side faces of the insulating supporting layer in a coating and gluing mode, the outer ends of the metal foils extend to the outer portion of the insulating supporting layer, and the metal foils and the plating layer are stably connected in a welding mode. According to the prepared composite current collector, tabs do not need to be led out in a welding mode, the insulating supporting layer is directly bonded with the metal foil in a coating and gluing mode, the part, extending out of the insulating supporting layer, of the metal foil serves as the tabs, the tab parts are welded to each other, electric conduction of the two plating layers is achieved, the internal resistance of the battery is reduced, and the service life of the battery is prolonged. And the production yield is improved, and the connection stability of the tabs and the use stability of the battery are improved.

The invention provides a flexible screen body for forming a Mobius structure or a similar Mobius structure. The flexible screen body includes a flexible substrate and an organic light-emitting unit arranged on the flexible substrate, the organic light-emitting unit includes a first electrode layer, a luminescent layer, and a second electrode layer, one end of the flexible substrate is provided with an FPC layer, the first electrode layer and the second electrode layer are electrically connected with the FPC layer, the head and tail ends of the flexible screen body are bonded by the FPC layer to form the Mobius structure or the similar Mobius structure after the flexible screen body turns 180 degrees for n times, and the flexible screen body can be electrically connected with an external power supply via the FPC layer. The FPC layer can bond the flexible screen body turning 180 degrees for n times, the technology is simple, and the bonding is firm.

The invention provides a packaging method for a biological characteristic optical sensor of wearable equipment, and the method comprises the following specific steps: a circuit arrangement step, a wafer welding step, a wire bonding step and a cutting step. The line arrangement is performed around a die bonding function region on a resin substrate copper-clad plate according to the transmitting andreceiving integrated function, and a wafer is welded in the die bonding function region. A chip motor on the wafer is connected with a bonding wire function region on the resin substrate copper-cladplate through the bonding wire, thereby realizing the electrical conduction of the chip. By cutting the resin substrate copper-clad plate into sensor units, each sensor unit includes at least one transmitting window and one receiving window, thereby realizing the integration of transmitting and receiving well, preventing the entire sensor unit from occupying a large space, greatly reducing the space occupancy rate of the sensor and improving the integration. When the sensor unit is mounted on a wearable smart watch or bracelet, the use effect is better.

The invention discloses a flexible-rigid circuit board and a mobile terminal. The flexible-rigid circuit board comprises a printed circuit board and a flexible circuit board, wherein the printed circuit board is provided with a wiring part and a connecting slot; the connecting slot is formed in one side of the printed circuit board and far from the wiring part; the flexile circuit board comprises a body, and a first side plate and a second side plate connected to the body; the second side plate is positioned on one side of the first side plate; the first side plate and the second side plate are provided with a terminal and a connector respectively; the first terminal is crimped on the wiring part and electrically connected with the wiring part; and the second side plate is laminated on the printed circuit board, so that the connector is clamped in the connecting groove. According to the flexible-rigid circuit board provided by the invention, the second side plate is provided with the connector, the second side plate is laminated on the printed circuit board, and the connector is clamped in the connecting groove of the printed circuit board, so that when the connector is moved to a main board in a wiring manner, the connector is positioned on the second side plate constantly; and therefore, the impedance environment is unchanged, and the impendence continuity of the connector in wiring is ensured.

The invention relates to the technical field of microelectronics, and discloses a touch display module and an assembling method of the touch display module, and the touch display module comprises a display module which comprises a display panel and a flexible circuit board electrically connected with the display panel; a touch module which comprises a touch panel, a transparent conducting layer and a driving chip; wherein the transparent conductive layer comprises a touch layer covering a visible area of the touch panel and a non-touch layer covering a non-visible area of the touch panel; a conductive circuit is also formed on the non-touch layer; the driving chip is arranged on the flexible circuit board, the flexible circuit board is provided with a metal conductive area which is electrically conducted with the driving chip, and the metal conductive area is bonded with the conductive circuit. The driving chip of the touch control module is arranged on the flexible circuit board of the display module, so that the touch control module does not need to be provided with the flexible circuit board, and the production cost of the touch control display module and the complexity of production steps are reduced.

The invention relates to a main machine, an adapter thereof and an electronic cigarette. The adapter is used for being electrically connected with a battery and an atomizer of the electronic cigaretteand comprises an external conducting component and an internal conducting component, wherein the external conducting component comprises a first external electric connection part and a second external electric connection part; the internal conducting component comprises a first internal electric connection part and a second internal electric connection part; the first external electric connectionpart and the first internal electric connection part are electrically connected with the positive pole and the negative pole of the battery; the second external electric connection part is of a sleeve structure, is provided with an internal thread and is in threaded connection with a first atomization electric connection part of the atomizer; the second internal electric connection part is electrically connected with a second atomization electric connection part of the atomizer; the internal conducting component is of a hollow structure with openings in two ends; and when the electronic cigarette is smoked, outside air enters the internal conducting component through a first air-in end and then enters a smoke channel of the atomizer through a first air-out end which communicates with theatomizer. When the adapter is applied to he main machine, the main machine can have good universality and have both an electric conduction function and an air conduction function.

The invention belongs to the technical field of PCBs, and discloses a quick heat dissipation PCB. The surface of the PCB is designed to be provided with a heat source region for installing a heating element. The PCB is provide with a heat dissipation groove corresponding to the heat source region, and the heat dissipation groove is located at one side, far from the heat source region, of the PCB.The interior of the heat dissipation groove is provided with a metal block, and the PCB is also provided with at least one metalized hole corresponding to the heat source region. One end of the metalized hole is connected with the heat source region, and the other end of the metalized hole is connected with the metal block. Through the setting of the metalized hole which is connected with the heating element and the metal block, the PCB can enable the heat on the heating element to be directly transferred to the metal block, and effectively improves the heat transfer efficiency, thereby improving the heat dissipation performance of the PCB, improving the operation stability of the PCB, and prolonging the service life of the PCB.

The invention relates to the technical field of bus devices, in particular, to a copper bar connection structure. Provided in the invention is a copper bar connection structure comprising an L type electric copper bar, a first connector, a second connector, a first conductor and a second conductor. The L type electric copper bar includes a first electric copper bar and a second electric copper barthat are connected mutually; the first conductor is arranged inside the first connector; and the second conductor is arranged inside the second connector. The first connector sleeves the outer surface of the first electric copper bar connected with the first conductor electrically; and the second connector sleeves the outer surface of the second electric copper bar connected with the second conductor electrically. With the copper bar connection structure provided by the invention, technical problems that the conductive copper bar of the existing bus can not be in electric conduction and the conductive copper bar can not bent for installation are solved.

The invention relates to an electrical connection assembly comprising a plug and a socket. The plug comprises a wire cable, a plug body and an electrically conductive structure, wherein the wire cable and the electrically conductive structure are arranged at two ends of the plug body respectively, and the electrically conductive structure comprises a first electrical conductor and a second electrical conductor. The socket comprises a base body, jacks formed on the base body, and electrical connectors which are arranged in the base body and extend into the jacks, wherein the electrical connectors comprise a first electrical connector and a second electrical connector. When the first electrical conductor and the second electrical conductor of the plug are rotated in the socket to positions corresponding to the first electrical connector and the second electrical connector, the first electrical conductor and the second electrical conductor are contacted with the first electrical connector and the second electrical connector so as to realize electrical conductance between the plug and the socket. When the first electrical conductor and the second electrical conductor of the plug are rotated in the socket to positions staggered with the first electrical connector and the second electrical connector, the first electrical conductor and the second electrical conductor are out of contact with the first electrical connector and the second electrical connector so as to realize electrical cutoff between of the plug and the socket.

The invention belongs to the technical field of new energy vehicle connectors, A high voltage connector comprising a plug and a socket, The plug comprises an insulating head and a socket assembly installed on the insulating head. The socket comprises an insulating seat and an insert piece fixed on the insulating seat. The socket further comprises a plastic shell arranged on opposite sides of the insert piece and a protective plate arranged between two plastic shells. The inner side of the plastic shell is provided with a card slot. The plug also comprises a rubber core arranged on both sides of the jack assembly. When the plug is inserted into the socket, the rubber core can expand the plastic shell and drive the protective plate to move along the insertion piece, so that the insertion piece is exposed from the upper end of the protective plate and inserted into the jack assembly. When the plastic shell is in a natural state, the protective plate is stuck in the card slot, and when theprotective plate is touched by hand, the protective plate does not move downward, and plays the function of tentacle protection safely and effectively.

The invention discloses a method for fixing small column-shaped metal body arrays. The method comprises the steps as follows: (a) regularly inserting the small column-shaped metal body arrays (1) into a paraffin layer (2) and exposing root parts (4) of small column-shaped metal bodies (3) to the surface of the paraffin layer (2); (b) plating the surface (5) of the paraffin layer, to which the root parts (4) of the small column-shaped metal bodies (3) are exposed, with a metal layer (6) having certain thickness; and (c) removing the paraffin layer (2) by melting. According to the method, low-cost, soft and easily-molten paraffin is taken as an early positioning medium for the small column-shaped metal bodies, the column-shaped bodies are fixed and bonded through low-temperature metal electroplating or chemical plating, the operation is simple, the technological process has small force and heat effects on the small column-shaped metal bodies, the fixing operation is efficient and reliable, the cost is low, and mounting and fixing problems of the small column-shaped metal body arrays are satisfactorily solved.