Cellular sandwich structure metal insert conducting device and installation method

Abstract

This invention relates to a conductive device and installation method for a honeycomb sandwich structure metal embedded part, belonging to the field of composite material technology for spacecraft structural components; it includes a honeycomb sandwich structure, a metal embedded part, a wire, and a connecting clip; wherein, the honeycomb sandwich structure includes an upper panel, a lower panel, and a honeycomb core layer; the lower panel is placed horizontally; the upper panel is horizontally positioned above the lower panel; the honeycomb core layer is axially vertically positioned between the upper and lower panels; the metal embedded part is installed inside the honeycomb core layer; the connecting clip is clamped and fixed to the vertical wall of any honeycomb cell in the honeycomb core layer; one end of the wire is connected to the metal embedded part, and the other end of the wire is connected to the connecting clip; thus, a conductive circuit is formed between the metal embedded part and the upper panel, the lower panel, and the honeycomb core layer; this invention introduces a V-shaped connecting clip that plastically deforms after clamping, allowing it to engage and clamp onto the vertical wall of the honeycomb cell, and through the reasonable arrangement of the wire connections, a conductive circuit is formed between the metal embedded part and the honeycomb core, ensuring stable and reliable electrical conductivity.

Description

Technical Field

[0001] This invention belongs to the field of composite material technology for spacecraft structural components, and relates to a conductive device and installation method for a honeycomb sandwich structure metal embedded part. Background Technology

[0002] Because charged particles can deposit on the surface of electronic components in the space environment, if the components of the solar cell array substrate or some structural mounting plates are not conductive, charged ions will accumulate, causing electrostatic voltage to build up, which may lead to electrostatic breakdown, damaging electronic components, short circuits, etc. In severe cases, it may endanger the power supply system of the entire spacecraft and ultimately cause the entire spacecraft to fail.

[0003] To adapt to the complex space environment, the on-resistance of solar cell array substrates and some honeycomb sandwich structure panels is generally required to not exceed 200Ω to 1000Ω. However, since the structure of spacecraft honeycomb sandwich structures is mainly an aluminum honeycomb sandwich structure, with panels on both sides and a honeycomb core in the middle, embedded parts, reinforcing frames, and other components are placed in the honeycomb core to provide interfaces and reinforcement. The honeycomb core and panels are connected by adhesive films, and various embedded components are bonded using structural adhesives or foam adhesives to form a composite structure. Both structural adhesives and foam adhesives are insulating materials. Therefore, it is possible that the metal embedded parts are completely isolated from the main body of the honeycomb sandwich structure (honeycomb core and panels) by the adhesive, resulting in insulation or excessively high resistance.

[0004] Traditional honeycomb sandwich structures use conductive adhesive to restore conductivity to poorly conductive or insulated embedded parts. This conductive adhesive, formulated with silver powder as a filler and resin, is unstable. Often, the initial conductivity is acceptable, but after the adhesive cures, the resistance increases, exceeding design requirements and necessitating further conductivity restoration. This resistance exceeding design specifications also frequently occurs after prolonged storage, transportation, or thermal testing. This is primarily because the conductive adhesive uses an adhesive-contact connection; any change in the contact surface, such as aging, loose adhesion, or cracks, can lead to resistance changes. Changes in storage environment, transportation vibrations, and thermal expansion and contraction can all cause these changes. Currently, the conductivity rate of embedded parts bonded using traditional methods is less than 30%, and the rework rate after delivery reaches 20%. Summary of the Invention

[0005] The technical problem solved by this invention is to overcome the shortcomings of the prior art and propose a conductive device and installation method for a honeycomb sandwich structure metal embedded part. By introducing a V-shaped connecting clip that undergoes plastic deformation after clamping, it is clamped onto the honeycomb core grid wall. By reasonably arranging the wire connection, the metal embedded part and the honeycomb core form a conductive circuit, ensuring stable and reliable electrical conductivity.

[0006] The solution of the present invention is:

[0007] A conductive device for a honeycomb sandwich structure metal embedded part includes a honeycomb sandwich structure, a metal embedded part, a wire, and a connecting clamp. The honeycomb sandwich structure includes an upper panel, a lower panel, and a honeycomb core layer. The lower panel is placed horizontally. The upper panel is horizontally positioned above the lower panel. The honeycomb core layer is axially vertically positioned between the upper and lower panels. The metal embedded part is installed within the honeycomb core layer. The connecting clamp is clamped and fixed to the vertical wall of any one of the honeycomb cells in the honeycomb core layer. One end of the wire is connected to the metal embedded part, and the other end of the wire is connected to the connecting clamp. This enables the metal embedded part to form a conductive loop with the upper panel, lower panel, and honeycomb core layer.

[0008] In the aforementioned honeycomb sandwich structure metal embedded conductive device, during installation, the metal embedded part is placed vertically in the honeycomb core layer; the two ends of the metal embedded part are in contact with the upper panel and the lower panel, respectively.

[0009] In the aforementioned honeycomb sandwich structure metal embedded conductive device, when the metal embedded part is a thin-walled cylindrical structure, one end of the wire is wrapped and bound to the outer wall of the metal embedded part and reinforced by structural adhesive; the other end of the wire is tied or soldered to the connecting clamp.

[0010] In the aforementioned honeycomb sandwich structure metal embedded conductive device, when the metal embedded part is a columnar structure, the side wall of the metal embedded part is provided with threaded holes and screws; one end of the wire is pressed into the threaded hole of the side wall of the metal embedded part by the screw and reinforced by structural adhesive; the other end of the wire is tied or soldered to the connecting clamp.

[0011] In the aforementioned honeycomb sandwich structure metal embedded conductive device, the connecting clip is a thin-walled metal clip structure; the connecting clip is made of aluminum or copper material, which has excellent conductivity and plasticity; the connecting clip is formed into a V-shaped opening structure by cutting, sheet metal forming or stamping; both sides of the opening end have a serrated structure and are turned towards the center.

[0012] In the aforementioned honeycomb sandwich structure metal embedded conductive device, the root of the connecting clamp is provided with an arched slotted structure to realize the binding or soldering of the wires.

[0013] In the aforementioned honeycomb sandwich structure metal embedded component conductive device, after one end of the wire is fixedly connected to the connecting clamp, the other end of the wire can be bundled to connect multiple metal embedded components.

[0014] The installation method of the above-mentioned honeycomb sandwich structure metal embedded conductive device includes the following steps:

[0015] Pre-embedded metal components are placed in the honeycomb core layer of the honeycomb sandwich structure;

[0016] Design a connector of appropriate size according to the specifications of the honeycomb core layer;

[0017] Cut the wire to the required length; fix one end of the wire to the arched slot of the connector; and secure one end of the wire to the metal embedded part.

[0018] Forming of a honeycomb sandwich structure with embedded metal parts.

[0019] In the above-mentioned installation method of a honeycomb sandwich structure metal embedded conductive device, when the metal embedded part is a thin-walled cylindrical structure, one end of the wire is wrapped and bound to the outer wall of the metal embedded part and reinforced by structural adhesive; the other end of the wire is tied or soldered to the connecting clamp.

[0020] When the metal embedded part is a columnar structure, the side wall of the metal embedded part is provided with threaded holes and screws; one end of the wire is pressed into the threaded hole of the side wall of the metal embedded part by the screw and reinforced by structural adhesive; the other end of the wire is tied or soldered to the connecting clamp.

[0021] In the above-mentioned installation method of a honeycomb sandwich structure metal embedded conductive device, the connecting clip is a thin-walled metal clip structure; the connecting clip is made of aluminum or copper material, which has excellent conductivity and plasticity; the connecting clip is formed into a V-shaped opening structure by cutting, sheet metal or stamping; both sides of the opening end have a serrated structure and are turned towards the center.

[0022] The advantages of this invention compared to the prior art are:

[0023] (1) The present invention uses a connecting clamp to bite the vertical wall of the honeycomb core and arranges the wire connection in a reasonable way to make the metal embedded part of the honeycomb sandwich structure and the honeycomb core form a conductive circuit;

[0024] (2) The connecting clip of the present invention is a thin-walled metal part. The material is a metal with excellent conductivity and plasticity. It is formed into a V-shaped opening by cutting, sheet metal or stamping. The top of the V-shape is a strip-shaped sawtooth and is turned towards the center. When in use, the top of the V-shaped connecting clip is pressed tightly so that the two sides of the top end mesh and bite the aluminum honeycomb core grid wall. The connecting clip undergoes plastic deformation and cannot spring back, forming a reliable connection.

[0025] (3) The present invention solves the problems of unstable conduction resistance and easy fluctuation after transportation or testing in the existing process of using conductive adhesive to bond conduction, which require repeated repairs. It can obtain electrical conduction performance with good stability and high reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the conductive device of the present invention, in which the metal embedded part has a thin-walled cylindrical structure;

[0027] Figure 2 This is a schematic diagram of the thin-walled cylindrical structure of the metal embedded part of the present invention;

[0028] Figure 3 This is a schematic diagram of the conductive device of the present invention, in which the metal embedded part has a columnar structure;

[0029] Figure 4 This is a schematic diagram of the columnar structure of the metal embedded part of the present invention;

[0030] Figure 5 This is a schematic diagram of the connecting clip structure of the present invention. Detailed Implementation

[0031] The present invention will be further described below with reference to the embodiments.

[0032] This invention provides a conductive device and installation method for a honeycomb sandwich structure metal embedded part. By introducing a V-shaped connecting clip that undergoes plastic deformation after clamping, it is clamped onto the honeycomb core grid wall. By rationally arranging the wire connection, the metal embedded part and the honeycomb core form a conductive circuit, ensuring stable and reliable electrical conductivity.

[0033] Honeycomb sandwich structure metal embedded conductive device, such as Figure 1-4 As shown, the device includes a honeycomb sandwich structure 1, a metal embedded part 2, a conductor 3, and a connecting clamp 4. The honeycomb sandwich structure 1 includes an upper panel, a lower panel, and a honeycomb core layer. The lower panel is placed horizontally. The upper panel is horizontally positioned above the lower panel. The honeycomb core layer is vertically positioned between the upper and lower panels. The metal embedded part 2 is installed within the honeycomb core layer. The connecting clamp 4 is clamped and fixed to the vertical wall of any one of the honeycomb cells within the honeycomb core layer. One end of the conductor 3 is connected to the metal embedded part 2, and the other end of the conductor 3 is connected to the connecting clamp 4, thus forming a conductive loop between the metal embedded part 2, the upper panel, the lower panel, and the honeycomb core layer. During installation, the metal embedded part 2 is placed vertically within the honeycomb core layer; both axial ends of the metal embedded part 2 are in contact with the upper and lower panels, respectively.

[0034] like Figure 1 , 2 As shown, when the metal embedded part 2 is a thin-walled cylindrical structure, one end of the wire 3 is wrapped and bound to the outer wall of the metal embedded part 2 and reinforced by structural adhesive; the other end of the wire 3 is tied or soldered to the connecting clamp 4.

[0035] like Figure 3 , 4 As shown, when the metal embedded part 2 is a columnar structure, the side wall of the metal embedded part 2 is provided with threaded holes and screws; one end of the wire 3 is pressed into the threaded hole of the side wall of the metal embedded part 2 by the screw and reinforced by structural adhesive; the other end of the wire 3 is tied or soldered to the connecting clamp 4.

[0036] like Figure 5As shown, the connecting clip 4 is a thin-walled metal clip structure; the connecting clip 4 is made of aluminum or copper, which has excellent conductivity and plasticity; the connecting clip 4 is formed into a V-shaped opening structure by cutting, sheet metal forming or stamping; both sides of the opening end have a serrated structure and are turned towards the center. The root of the connecting clip 4 is provided with an arched slotted structure to realize the binding or soldering of the wire 3.

[0037] After one end of the conductor 3 is fixed to the connecting clamp 4, the other end of the conductor 3 can be bundled to connect multiple metal embedded parts 2.

[0038] The installation method of the conductive device for the embedded metal part of the honeycomb sandwich structure includes the following steps:

[0039] Metal embedded parts 2 are pre-placed in the honeycomb core layer of the honeycomb sandwich structure 1;

[0040] Design a suitable size connecting clip 4 according to the specifications of the honeycomb core layer;

[0041] Cut the wire 3 to the required length; fix one end of the wire 3 to the arched slot of the connecting clip 4; and fix one end of the wire 3 to the metal embedded part 2.

[0042] The honeycomb sandwich structure 1 with metal embedded parts 2 is formed.

[0043] When the metal embedded part 2 is a thin-walled cylindrical structure, one end of the wire 3 is wrapped and bound to the outer wall of the metal embedded part 2 and reinforced by structural adhesive; the other end of the wire 3 is tied or soldered to the connecting clip 4.

[0044] When the metal embedded part 2 is a columnar structure, the side wall of the metal embedded part 2 is provided with threaded holes and screws; one end of the wire 3 is pressed into the threaded hole of the side wall of the metal embedded part 2 by the screw and reinforced by structural adhesive; the other end of the wire 3 is tied or soldered to the connecting clip 4.

[0045] The connecting clip 4 is a thin-walled metal clip structure; the connecting clip 4 is made of aluminum or copper, which has excellent conductivity and plasticity; the connecting clip 4 is formed into a V-shaped opening structure by cutting, sheet metal or stamping; both sides of the opening end have a serrated structure and are turned towards the center.

[0046] This invention addresses existing honeycomb sandwich structures, such as rigid substrates for solar cell arrays and honeycomb sandwich structure panels. It achieves electrical conductivity between the embedded metal components within the honeycomb and the honeycomb core via conductive wires. One end of the wire is secured to the embedded metal component with screws or wrapped around it and reinforced with structural adhesive. The other end is secured to a dedicated connecting clip, which is then clamped and fixed to the honeycomb core's lattice wall. This creates a conductive loop between the embedded metal components, the honeycomb core, the panel, and the reinforcing frame. By strategically arranging the wire paths or pre-drilling holes for wire insertion, the problem of achieving electrical conductivity between embedded components that cannot be directly connected to the honeycomb core can also be solved. The invention offers excellent conductivity stability and high reliability.

[0047] The connecting clip in this invention is a thin-walled metal part made of a metal with excellent conductivity and plasticity, such as aluminum or copper. It is formed into a V-shaped opening by cutting, sheet metal forming or stamping. The top of the V-shape has strip-shaped serrations and is turned towards the center. When an external force is applied, the two sides of the top end mesh, and the connecting clip undergoes plastic deformation and cannot spring back. It can effectively clamp the vertical wall of the honeycomb core. A fixing ring is formed at the bottom of the V-shape by stamping or sheet metal forming, which can be used for wire insertion, binding or soldering.

[0048] The metal embedded component within the honeycomb core is connected to the core via a conductor. A threaded hole is provided on the sidewall of the metal embedded component. One end of the conductor is secured to the sidewall of the metal embedded component with a screw, and the other end is connected to a fixing clamp, which is held in place by the clamp against the vertical wall of the honeycomb core near the embedded component. For metal embedded components where threaded holes cannot be provided, the conductor is secured to the embedded component by wrapping and binding it to a metal embedded component column or a dedicated conductive structure (such as a T-shaped boss or a perforation). The other end of the conductor is connected to the fixing clamp, which is held in place by the clamp against the vertical wall of the honeycomb core near the embedded component.

[0049] For components in a honeycomb sandwich structure that cannot be directly connected to the honeycomb core but require conductivity (with insulating media around which wires cannot directly pass, such as fiberglass products, carbon fiber products, etc.), a conductive loop can be reserved by using connecting clips and wires on the nearby honeycomb core grid wall. Then, the wires are extended along the pre-set route to the component that needs conductivity. Finally, the wires are tightened or tied to the embedded part with screws and fixed with J-133 structural adhesive.

[0050] The honeycomb lattice used in the honeycomb sandwich structure has conductive properties.

[0051] The conductor can bypass relevant obstacles through pre-drilled holes or designed routes, such as pre-drilled through holes or cable trays in non-conductive media like carbon fiber and fiberglass products, and then be fixed to the parts that need to conduct electricity. One end of the conductor is connected to the honeycomb core wall via a connecting clip, and the other end is connected to the embedded part. After the conductor extends out of the connecting clip, it can be bundled to connect multiple embedded parts.

[0052] Based on the existing honeycomb sandwich structure design, since the honeycomb core near the embedded part needs to be cut off and removed, and reinforced and connected to the embedded part using expanding foam, the honeycomb metal embedded part and the honeycomb core need to be electrically connected by reasonably arranging the wires and connecting fixing clips. Figure 1 As shown.

[0053] Specifically, for metal embedded parts in the honeycomb structure that can have pre-drilled threaded holes, communication with the honeycomb structure is achieved through copper wires. One end of the wire is fixed to the metal embedded part with a screw, and the other end is fixed to the vertical wall of the honeycomb core grid through a designed connecting clip. For metal embedded parts in the honeycomb structure that cannot have pre-drilled threaded holes, communication is achieved by wrapping and binding wires around their column segments or T-shaped protrusions and through holes, and fixing them with structural adhesive. The other end is fixed to the vertical wall of the honeycomb core grid through a connecting clip.

[0054] For components that cannot be directly connected to the honeycomb core and require crossing a non-conductive medium, one end of the conductor is fixed to the nearby honeycomb core lattice wall using a connecting clip. The conductor is then guided across the non-conductive medium by a pre-designed wiring route, including pre-drilled holes and routing grooves, before connecting to the component requiring conductivity. For components that are embedded or installed later, holes can be drilled in the corresponding positions of the equipotential bonding plate before the honeycomb sandwich structure is formed to lead out the pre-drilled conductor. It can then be connected to the embedded or installed component using either wrapping or screw fixing, depending on the structural form of the component.

[0055] This invention designs a connector clip, which is a thin-walled metal component made of a metal with excellent conductivity and plasticity, such as aluminum or copper. It is formed into a V-shaped opening through cutting, sheet metal work, or stamping. The top of the V-shape has serrated edges that turn inwards. In use, the top of the V-shaped connector clip is pressed tightly, causing the two sides of the top to engage and bite against the aluminum honeycomb core lattice wall. The connector clip undergoes plastic deformation and cannot spring back, forming a reliable connection. An arch-shaped fixing ring is formed at the bottom of the V-shaped connector clip through stamping, allowing wires to be inserted, bound, or soldered for fixation.

[0056] Example

[0057] Currently, most rigid substrates are honeycomb sandwich structures consisting of carbon fiber panels (mesh) and aluminum honeycomb cores, with a basic thickness of 23mm. Reinforcing frames are arranged around the sandwich structure, and embedded parts are pre-installed within the honeycomb core and reinforcing frames to provide external interfaces. Clamping points are also arranged on the rigid substrate for clamping the solar panels. The metal embedded parts are pre-embedded, and the metal clamping sleeves are bonded to the pre-embedded cylindrical reinforcing sleeves within the honeycomb sandwich structure after the honeycomb sandwich structure is formed. The reinforcing sleeves are made of carbon fiber epoxy resin composite material.

[0058] First, design a suitable size connector according to the honeycomb core specifications. The connector has a wall thickness of 0.5mm and is made of brass. It is formed by stamping and cutting. The V-shaped end is serrated along the height direction, and the bottom of the V-shape has an arched groove for wire knotting or soldering.

[0059] First, cut the wire to the required length. Then, tie one end of the wire to the arched slot of the fixing clamp to form a wire connection clamp assembly. For metal embedded parts, first pre-drill a through threaded hole. Then, wrap and tie the other end of the wire connection clamp assembly around the threaded column near the screw head. Finally, tighten the screw into the through threaded hole of the metal embedded part to press the wire against the side of the metal embedded part, forming a metal embedded part through assembly.

[0060] During the molding of the honeycomb sandwich structure, the front panel is placed on the molding and curing platform. The honeycomb core is cut according to the shape of the frame. The positions of the clamping point reinforcing sleeve and the metal embedded part are determined using a pressure equalizing plate. The honeycomb core is then cut at the corresponding positions of the reinforcing sleeve and the embedded part. For the clamping reinforcing sleeve position, the connecting clamp wire assembly is placed at the corresponding cut position of the honeycomb core. Then, needle-nose pliers are used to clamp the connecting clamp onto the cut honeycomb core cell wall. The other end of the wire extends out of the wire insertion hole reserved in the panel and the pressure equalizing plate, and then it is inserted into the clamping reinforcing sleeve. For the metal embedded part, the metal embedded part conductive assembly is placed at the corresponding cut position of the honeycomb core. Similarly, needle-nose pliers are used to clamp the connecting clamp onto the nearby cut honeycomb core cell wall. Then, expanding foam particles are filled near the reinforcing sleeve and embedded part honeycomb, and the uncured foam particles fill the entire honeycomb core cell.

[0061] The rigid substrate honeycomb sandwich structure is cured by high temperature vacuum in an oven. After the rigid substrate comes out of the oven, the pressing point embedded parts are glued to the pressing and reinforcing sleeve position. In this embodiment, there are two pressing point embedded parts, which are connected vertically. Poor contact may occur at the joint, so the wires need to be connected and fixed separately. The wire located on the back side of the substrate is knotted on the side of the pressing and reinforcing sleeve and a wire is led out. A 0.5mm wide groove is opened on the side wall of the pressing and reinforcing sleeve to lead the wire to the front side of the substrate. Then the wire is wrapped and tied tightly at the ends of the upper and lower pressing point embedded parts and fixed with structural adhesive.

[0062] This invention uses a connecting clamp to grip the cell wall of the honeycomb core and arranges wires to form a conductive circuit between the metal embedded part of the honeycomb sandwich structure and the honeycomb core. This solves the problems of unstable conduction resistance, easy fluctuation after transportation or testing, and repeated repairs that exist in the existing process of using conductive adhesive to bond the conduction. It can obtain electrical conduction performance with good stability and high reliability.

[0063] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A honeycomb sandwich structure metal insert feedthrough, characterized by: The device includes a honeycomb sandwich structure (1), a metal embedded part (2), a wire (3), and a connecting clip (4); wherein, the honeycomb sandwich structure (1) includes an upper panel, a lower panel, and a honeycomb core layer; the lower panel is placed horizontally; the upper panel is set horizontally above the lower panel; the honeycomb core layer is set vertically between the upper panel and the lower panel; the metal embedded part (2) is installed inside the honeycomb core layer; the connecting clip (4) is clamped and fixed on the vertical wall of any honeycomb core cell in the honeycomb core layer; one end of the wire (3) is connected to the metal embedded part (2), and the other end of the wire (3) is connected to the connecting clip (4); thus realizing the formation of a conductive loop between the metal embedded part (2), the upper panel, the lower panel, and the honeycomb core layer; When the metal embedded part (2) is a thin-walled cylindrical structure, one end of the wire (3) is wrapped and bound to the outer wall of the metal embedded part (2) and reinforced by structural adhesive; the other end of the wire (3) is tied or soldered to the connecting clamp (4); When the metal embedded part (2) is a columnar structure, the side wall of the metal embedded part (2) is provided with threaded holes and screws; one end of the wire (3) is pressed into the threaded hole of the side wall of the metal embedded part (2) by screws; and reinforced by structural adhesive; the other end of the wire (3) is tied or soldered to the connecting clip (4); The connecting clip (4) is a thin-walled metal clip structure; the connecting clip (4) is made of aluminum or copper material, which has excellent conductivity and plasticity; the connecting clip (4) is formed into a V-shaped opening structure by cutting, sheet metal or stamping; both sides of the opening end are serrated structures and are turned towards the center.

2. The conductive device for a honeycomb sandwich structure metal embedded part according to claim 1, characterized in that: During installation, the metal embedded part (2) is placed vertically in the honeycomb core layer; the two ends of the metal embedded part (2) are in contact with the upper panel and the lower panel respectively.

3. The conductive device for a honeycomb sandwich structure metal embedded part according to claim 1, characterized in that: The root of the connector (4) is provided with an arched slotted structure to enable the binding or soldering of the wire (3).

4. The conductive device for a honeycomb sandwich structure metal embedded part according to claim 1, characterized in that: After one end of the conductor (3) is fixed to the connecting clamp (4), the other end of the conductor (3) is split to connect multiple metal embedded parts (2).

5. An installation method for a honeycomb sandwich structure metal embedded conductive device according to claim 1, characterized in that: Includes the following steps: Metal embedded parts (2) are pre-placed in the honeycomb core layer of the honeycomb sandwich structure (1); The dimensions of the connecting clip (4) are designed according to the specifications of the honeycomb core layer; Cut the wire (3) to the required length; fix one end of the wire (3) to the arched slot of the connecting clamp (4); and fix one end of the wire (3) to the metal embedded part (2). The honeycomb sandwich structure (1) with metal embedded parts (2) is formed.

6. The installation method according to claim 5, characterized in that: When the metal embedded part (2) is a thin-walled cylindrical structure, one end of the wire (3) is wrapped and bound to the outer wall of the metal embedded part (2) and reinforced by structural adhesive; the other end of the wire (3) is tied or soldered to the connecting clamp (4); When the metal embedded part (2) is a columnar structure, the side wall of the metal embedded part (2) is provided with threaded holes and screws; one end of the wire (3) is pressed into the threaded hole of the side wall of the metal embedded part (2) by screws; and reinforced by structural adhesive; the other end of the wire (3) is tied or soldered to the connecting clip (4).

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