CN211234067U - Flexible heat transfer conductive device - Google Patents

Abstract

A flexible heat-conducting and conducting device uses new materials to form flexible connections, and uses traditional metal materials as passive temperature-change plates, which retains the advantages of strong plasticity, easy processing, and low price. The flexible connection of the new material is embedded in the passive temperature change sheet, which is integrally formed. The angle, thickness, shape and distribution of the flexible material inserted into the passive thermo-variable sheet can be prefabricated according to the actual working conditions, and the shape and thickness of the passive thermo-variable sheet can also be prefabricated. The distributed embedding further increases the contact area between the two, and also helps to adjust the energy distribution according to the energy demand of the target. The prefabricated openings on the flexible material allow the passive temperature change sheet material to immerse, latch and clamp the flexible material.

Description

Flexible heat transfer and conduction device

Technical field:

Flexible connection device for the transmission of cold (heat) and electrical energy.

Background technique:

Flexible electrical, thermal, and cold-conducting connections are used in new energy, cryostats, vacuum instruments and other fields. Most of the parts for fixing to the target element are made of metal. The current common practice is that an additional mechanical method is required to bundle and fix both ends of the flexible connection on the terminal board, and then the terminal board is fixed to the target object, and the bonding area with the target object is small.

Invention content:

The present invention is a flexible heat transfer and conduction device, which uses novel materials to form flexible connections, and the novel materials include but are not limited to: superconducting alloys, rare earth metal compounds, carbon-based nanomaterials, graphene and other substances. Such materials have incomparable advantages over traditional metal materials in terms of heat conduction, cold conduction, and electrical conductivity. Particularly light in weight, it provides a better solution for applications requiring flexible connections.

Using traditional metal materials as energy transmission target terminals, hereinafter referred to as passive temperature change plates, retains the advantages of traditional metal materials such as good mechanical properties, high strength and low price. The flexible connection of the new material is embedded in the passive temperature change sheet, which is integrally formed. The angle, thickness, shape and distribution of the flexible connection 2 inserted into the passive thermostat are prefabricated according to the actual working conditions. The prefabricated holes on the flexible connection 2 allow the passive temperature change sheet material to be immersed, latched, and clamped to the flexible connection 2 . The distributed embedding further increases the contact area between the two, and also helps to adjust the energy distribution in a targeted manner. At the same time, the subsequent processing of the passive temperature change plate directly becomes an element in the energy receiving system. For example, multiple sensors need to operate in a cavity that maintains a low temperature. The bottom plate or wall plate of the cavity supporting the sensor can be used as an energy receiving board, and the flexible connection 2 can be directly embedded in the cavity according to the location of the sensor, or it can be made into mechanical The connected sheets fit into the cavity.

Invention advantages:

The invention increases the contact area between the conductor and the receiving element, improves the efficiency of electrical conduction, heat conduction, and the distribution of the heat conduction area is controlled. The insertion depth and angle of the flexible connection are prefabricated according to the actual working conditions to maximize its effectiveness. The energy loss caused by mechanical connection or chemical bonding is avoided, which greatly improves the stability of the system, and at the same time, the device is lighter in size and weight.

Description of drawings

Below in conjunction with accompanying drawing and example further explain:

Figure 1: Overall perspective view

Figure 2: Perspective view of flexible connection distribution

Figure 3: Side view of passive temperature change plate (sheet) prefabricated angle

Description of drawings:

Figures 1 and 3 show the passive thermoelectric sheet in multiple monomer states before it is formed. Compared with the structure shown in FIG. 1 , the structure shown in FIG. 3 only adds the change of the insertion angle of the flexible connection 2 , which covers the content of FIG. 1 , so it is described as an embodiment as follows.

Figure 2 shows that after forming, many passive temperature change sheets are formed into passive temperature change plates.

1. Passive temperature change plate (sheet), 2. Flexible connection, 3. Opening on the flexible connection, 4. Reserved machining part of the passive temperature change plate, 5. Flexible connection energy transmission end, 6. Hole gap

Detailed ways:

A number of passive temperature change sheets are assembled and formed to form a passive temperature change plate. Before forming, according to the specific working conditions and subsequent machining requirements, select the passive thermoelectric sheet 1 with an appropriate thickness. For example, in the area where the dense distribution of flexible connections 2 is not required, use a thicker passive thermoelectric sheet 1 to provide more flexibility. the follow-up machining space. As shown in FIG. 1 , the thickness of the passive temperature change plate used for the machining part 4 is larger than that of the contact part of the passive temperature change plate 1 and the flexible connection 2 . At the same time, according to the angle at which the flexible connection 2 is to be inserted, mechanical prefabrication is performed on the molds and fixtures in contact with the passive thermo-variable sheet 1 and its contacts.

In the plane that the passive thermo-variable sheet 1 is attached to the flexible connection 2, except for the part extended from the flexible connection for connection, the dimensions in other directions are larger than the inserted part of the flexible connection 2, which forms a protective cover for the flexible connection 2. The passive temperature change plate formed by the size part is not a composite material, and the material is relatively simple, which is convenient for drilling, riveting, tapping and other mechanical processing.

Prefabricated according to the distribution of cold and heat demand at different locations, flexible connections of different thicknesses 2. A hole is punched on the flexible connection 2, and the hole is provided with a notch in communication with the edge of the flexible connection 2, that is, the edge of the hole is the edge of the flexible material. The shape of the holes can be round, flat, square, or other shapes, and then alternately inserted into different or the same interval of the passive temperature change sheet according to the need. Using a hot pressing process with temperature and pressure as control parameters, the passive temperature change sheet is formed into a passive temperature change plate, and the flexible connection 2 is fitted and fixed therein. The angle at which the flexible connection 2 is inserted into the passive temperature change plate 1 is prefabricated according to the requirements of the working conditions. As shown in Figure 3, the insertion direction of the flexible connection 2 is 60° from the passive temperature change plate 1, which is convenient for the flexible connection 2 to be bundled in space and form an arc, reducing the exposed area. In order to ensure sufficient heat flux, the part of the flexible connection 2 inserted into the passive temperature change sheet 1 may be thinner than the rest of the flexible connection 2 . If the insertion part of the flexible connection 2 is too thick, the corresponding opening position of the passive temperature change sheet 1 can be pre-coated with brazing material or surfacing with prefabricated protrusions. For the fiber braided flexible material and the thin film flexible material composed of the braided material, the voids created by the braiding can play the same fixing role as the opening 3 on the film material, and the passive temperature change plate material can be immersed in it.

The flexible connection 2 at the energy transmission end 5 can be fixed on the active temperature change plate in the same way; however, the flexible connection 2 at the energy transmission end 5 usually has a different connection method from the receiving end. For example, the transmission end 5 in FIG. 2 can bundle the flexible connections 2 and fix them, while the receiving end adopts distributed fixation.

The whole device is integrally formed. In order to avoid the thermal conductivity, electrical conductivity and mechanical properties of the material being affected in an oxidizing environment, the forming process is carried out in a vacuum or an inert gas protection environment.

Claims (11)

1. A flexible heat transfer and conduction device comprises a passive temperature variable sheet (1) and a flexible connection (2), and is characterized in that the passive temperature variable sheet and the flexible connection form an embedded structure by means of self geometric shapes and are formed at one time.

2. The flexible heat and electricity transfer device as claimed in claim 1, wherein one or more flexible connectors (2) are inserted into the passive temperature-variable plate (1) at appropriate intervals.

3. The flexible heat and electricity transfer device according to claim 2, wherein the passive temperature-variable plate (1) is formed in a plane which is in contact with the flexible connection (2) except for a portion of the flexible connection extending out for connection and having a dimension larger than a portion of the flexible connection (2) inserted in each direction.

4. The flexible heat and electricity transfer device as claimed in claim 2, wherein the thickness of the portion of the flexible connection (2) inserted into the passive temperature-variable plate (1) is smaller than the thickness of the portion thereof not inserted outside.

5. The flexible heat and electricity transfer device as claimed in claim 2, wherein the thickness of the single body of the passive temperature-variable sheet (1) is different according to the distribution density of the flexible connection (2).

6. The flexible heat and electrical conduction device according to claim 2, wherein the thickness of the flexible connection (2) inserted at different positions is prefabricated according to the distribution of cold and heat.

7. The flexible heat and electricity transfer device as claimed in claim 2, wherein the angle of the flexible connection (2) inserted into the passive temperature-variable plate (1) is prefabricated according to the requirements of the use conditions.

8. The flexible heat and electricity transfer device according to claim 7, wherein the shape of the passive temperature-variable plate (1) is prefabricated according to the angle of the flexible connection (2) inserted into the passive temperature-variable plate (1).

9. Flexible heat-transferring and electrically conducting device according to claim 1, characterized in that one or more holes (3) are preformed in the flexible connection (2).

10. Flexible heat and electrical conducting device according to claim 9, characterized in that the hole (3) is provided with a break (6) in connection with the flexible connecting edge, i.e. the edge of the hole is the edge of the flexible material.

11. The flexible heat and electricity transfer device as claimed in claim 9, wherein the passive temperature-variable plate (1) is pre-coated with brazing filler metal or is provided with a build-up welding prefabricated protrusion corresponding to the position of the opening.

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