Temperature difference assembly component, assembly method and lightweight rigid body assembly having the component

Abstract

The present invention discloses a temperature difference assembly component, comprising: a controlled component, the controlled component having a controlled body and a controlled part; a clamping component, the clamping component forming at least one clamping space corresponding to the shape of the controlled part, and the clamping space having a size slightly smaller than the controlled part, so that when the temperature of the clamping component is higher than the temperature of the controlled component by a predetermined temperature difference value, the clamping space can just allow the controlled part to enter and exit, and when the temperature difference between the clamping component and the controlled component is less than the predetermined temperature difference value, the size of the clamping space tightly clamps the controlled part of the controlled component; and a low heat transfer layer, which is arranged between the controlled part and the clamping component where the clamping space is formed, and the low heat transfer layer has a lower thermal conductivity than the controlled part and the clamping component. In addition, the present invention also discloses an assembly method of the temperature difference assembly component and a lightweight rigid body component having the component.

Description

Technical Field

[0001] The invention relates to a temperature difference assembly component, and further relates to an assembly method of the temperature difference assembly component and a lightweight rigid body component having the component. Background Art

[0002] Generally, traditional metal structures are combined by welding, bonding or threading, but the structural strength of the joints of these combinations is usually weak. For example, the most vulnerable part of a vehicle is usually the welding point of the vehicle body. When the vehicle collides, the welding point is the most likely place to break. When the structure of the above combination is to be disassembled, in addition to the complicated disassembly process, welding or bonding traces will usually remain after disassembly. On the other hand, if it is connected by threading, there may be problems such as slipping, cracked screw holes, precision or loose screw holes. In addition, the cost of the molds and stamping equipment of the above joint structure is even more expensive, and the manufacturing process time is relatively lengthy.

[0003] Another way to combine metal structures is to heat one of the components so that the hole at the combination expands due to heat, and then combine another unheated component with the hole. When the hole at the combination cools and shrinks, the other component is tightly combined through the shrunken hole. This is commonly used in motor manufacturing processes. When the motor rotor is heated, the shaft hole will expand due to heat. At this time, the shaft is inserted into the shaft hole. After cooling, the rotor and the shaft will be tightly combined. However, if you want to disassemble the combined rotor and shaft, and heat the rotor again, the shaft will expand and expand at the same time as the shaft hole due to heat conduction, so that no gap can be formed between the two for disassembly.

[0004] Furthermore, when two dissimilar metals are connected to each other, the different redox potentials of the two metals often cause an oxidation half-reaction on one side and a reduction half-reaction on the other side, causing changes in the properties of the two metals. In addition, the long-term tight fit of the two dissimilar metals will also lead to partial mutual dissolution, causing changes in the properties of the metals. On the other hand, the tight fit of two metal materials to each other will also cause some unnecessary short-circuit effects. For example, when the battery core of an electric vehicle is short-circuited, if the battery core is supported by a metal bracket, the short-circuit discharge will be quickly conducted to other parts, causing unnecessary risks.

[0005] Therefore, the purpose of the present invention is to provide an assembly component with a high-strength structure and easy assembly and disassembly. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, according to an embodiment of the present invention, it is hoped to provide a device which not only has excellent structural strength but can also be easily disassembled after assembly; which can not only eliminate the battery effect between metal materials but also select insulating or well-conducting temperature difference assembly components.

[0007] The present invention also hopes to provide a method for assembling a temperature difference assembly component, so that the temperature difference assembly component can be quickly assembled and conveniently disassembled.

[0008] In addition, the present invention further hopes to provide a lightweight rigid body component with a temperature difference assembly component to achieve the following purposes: (1) having a light weight and high strength structure that is not easily deformed by external forces; (2) being able to easily change the structural design to fully adapt to various different needs and have sufficient flexibility; (3) requiring simple basic components, reducing material preparation and greatly reducing material costs; (4) being easy to assemble and disassemble, greatly simplifying the difficulty of assembly / disassembly operations and improving assembly and disassembly efficiency; (5) being able to choose insulation or conduction, and being able to selectively block the battery effect between dissimilar metals.

[0009] According to an embodiment, the present invention provides a temperature difference assembly component, comprising: a controlled part, the controlled part having a controlled body and a controlled part extending from the controlled body; a clamping part, the clamping part forming at least one clamping space corresponding to the shape of the controlled part, and the clamping space having a size slightly smaller than the controlled part, so that when the temperature of the clamping part is higher than the temperature of the controlled part by a predetermined temperature difference, the clamping space can just allow the controlled part to enter and exit, and when the temperature difference between the clamping part and the controlled part is less than the predetermined temperature difference, the size of the clamping space can tightly clamp the controlled part of the controlled part; a low heat transfer layer, arranged between the controlled part and the clamping part where the clamping space is formed, and the low heat transfer layer has a lower thermal conductivity than the controlled part and the clamping part, so that when temperature control is applied to make the temperature of the clamping part higher than that of the controlled part, the temperature difference between the controlled part and the clamping part can be continuously increased to the predetermined temperature difference.

[0010] According to an embodiment, the present invention provides a method for assembling a temperature difference assembly component, which allows a clamping member to be firmly connected to a controlled member, the controlled member having a controlled body and a controlled portion extending from the body, the clamping member forming a clamping space, the clamping space having a shape corresponding to the controlled portion, and a low heat transfer layer is provided between the controlled portion and the clamping space, and the low heat transfer layer has a lower thermal conductivity value than the controlled member and the clamping member. The method comprises the following steps:

[0011] a) heating the clamping member so that the clamping space is slightly larger than the sum of the thickness of the clamped portion and the low heat transfer layer;

[0012] b) accommodating the restrained portion in the clamping space, and making the low heat transfer layer located between the clamping member and the restrained portion, thereby reducing heat conduction between the clamping member and the restrained portion;

[0013] c) Cooling the clamping member to reduce the clamping space to a point where the clamping member tightly clamps the low heat transfer layer and the constrained portion.

[0014] In addition, according to an embodiment, the present invention provides a lightweight rigid body assembly with a temperature difference assembly component, comprising at least:

[0015] A plurality of controlled parts, each of which has a controlled body and a controlled portion extending from the controlled body;

[0016] A plurality of clamping members, each of which is respectively formed with at least one clamping space having a shape corresponding to the restrained portion of one of the restrained members, and the clamping space has a size slightly smaller than the corresponding restrained portion, so that when the temperature of the clamping member is higher than the temperature of the corresponding restrained member by a predetermined temperature difference, the clamping space can just allow the corresponding restrained portion to enter and exit, and when the temperature difference between the clamping member and the corresponding restrained member is less than the predetermined temperature difference, the size of the clamping space can tightly clamp the corresponding restrained portion of the corresponding restrained member;

[0017] A plurality of low heat transfer layers are respectively disposed between the clamping space and the corresponding clamped portion of each pair of corresponding clamping members, and the low heat transfer layers have a lower thermal conductivity than the clamped member and the clamping member, so that when temperature control is applied to make the temperature of the clamping member higher than the temperature of the corresponding clamped member, the temperature difference between the corresponding clamped member and the clamping member can be continuously increased to the predetermined temperature difference value; and

[0018] The controlled part and the clamping part together form a three-dimensional structure.

[0019] Compared to the prior art, the temperature difference assembly component provided by the present invention reduces the heat conduction efficiency between the controlled part and the clamping part through the low heat transfer layer, which not only provides a structure with excellent structural strength, but also enables the combined controlled part and the clamping part to reach a predetermined temperature difference when heated and disassembled, so that the controlled part can be released from the clamping space, so that the assembly component can be easily disassembled in reverse.

[0020] Compared with the prior art, the present invention provides an assembly method for combining the above-mentioned temperature difference assembly components, so that the clamping member is firmly connected to a controlled member, the controlled member has a controlled body and a controlled portion extending from the body, the clamping member forms a clamping space, the clamping space has a shape corresponding to the controlled portion, and a low heat transfer layer is arranged between the controlled portion and the clamping space, and the low heat transfer layer has a lower thermal conductivity value than the above-mentioned controlled member and the above-mentioned clamping member. By the above-mentioned method, the structural strength after assembly is good, and both assembly and disassembly are extremely convenient.

[0021] Compared with the prior art, the lightweight rigid body assembly with temperature difference assembly components provided by the present invention can simply form a three-dimensional and high-strength structure by assembling a plurality of controlled parts and clamping parts, while taking into account both lightness and durability. Since the structure adopted is simple, it can be easily increased and reduced, which not only greatly increases the flexibility of use, but also greatly reduces the material preparation cost, and is convenient for assembly and disassembly; in particular, the controlled parts and clamping parts can be quickly and selectively combined and disassembled, solving the problem of difficult disassembly in the conventional technology. Furthermore, by selecting different materials for the low heat transfer layer, the battery effect between two different metals can be isolated, so that the properties of the metal material can be maintained for a long time; in addition, by selecting the material of the low heat transfer layer, the electrical insulation effect or excellent conductive effect between the clamping part and the controlled part can also be determined. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a first preferred embodiment of the temperature difference assembly component of the present invention.

[0023] Figure 2 for Figure 1 A three-dimensional diagram of the embodiment before assembly.

[0024] Figure 3 for Figure 1 A three-dimensional diagram of the assembled embodiment.

[0025] Figure 4 The figure is a flow chart of the method for assembling a temperature difference assembly component according to the present invention.

[0026] Figure 5 It is a schematic diagram of a second preferred embodiment of the temperature difference assembly component of the present invention.

[0027] Figure 6-8 It is a schematic diagram of a third preferred embodiment of the temperature difference assembly component of the present invention.

[0028] Fig. 9 It is a three-dimensional view of a first preferred embodiment of a lightweight rigid body assembly with a temperature difference assembly component of the present invention.

[0029] Fig.10 It is a three-dimensional view of a second preferred embodiment of a lightweight rigid body assembly with a temperature difference assembly component of the present invention.

[0030] Among them: 11, 41, 51, 54, 61, 611, 612, 613 are controlled parts; 12, 12', 42, 52, 521, 522, 523, 524, 62 are clamped parts; 13, 35, 43, 53 are low heat transfer layers; 111, 411 are controlled bodies; 112, 412 are controlled parts; 121, 121', 420, 520, 621, 622, 623 are clamping spaces; 21, 22, 23 are steps; 33 is a rotor; 34 is an axis; 50, 60 are rigid components; 614 is a convex part; 624 is a groove. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. These embodiments should be understood to be only used to illustrate the present invention and not to limit the scope of protection of the present invention. After reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

[0032] Figures 1 to 3 1 and 2 are schematic diagrams and a three-dimensional diagram of a first preferred embodiment of a temperature difference assembly component of the present invention. The controlled component 11 is in the shape of a long straight cylindrical body, and has a controlled body 111 and a controlled portion 112 extending from the controlled body 111. A low heat transfer layer 13 is formed on the surface of the controlled portion 112. The low heat transfer layer 13 is a high thermal resistance material. In this embodiment, it is formed by metal anode treatment or chemical vapor deposition. For example, zirconia ceramics are used, whose thermal resistance is 18 times that of steel. The resistance value and breakdown voltage value of zirconia ceramics are very high, so that the completed component can not only effectively insulate, but also provide a very good electrical impedance value.

[0033] The clamping member 12 is a metal ring having a clamping space 121. The clamping space 121 is a circular hole whose inner diameter is slightly smaller than the sum of the outer diameter of the clamped member 11 and the thickness of the low heat transfer layer 13. When the clamping member 12 is heated and the temperature is higher than that of the clamped member 11 and reaches a predetermined temperature difference, a clamping space 121 is formed. Figure 1 The clamping part 12' in the clamping space 121' expands in volume due to thermal expansion and contraction, and at the same time forms a larger clamping space 121'. At this time, the clamping space 121' can just allow the restrained part 112 to enter and exit. When the restrained part 112 is accommodated in the clamping space 121', when the temperature difference between the clamping part 12 and the restrained part 11 after cooling is less than the predetermined temperature difference, because the clamping space 121 is slightly smaller than the size of the restrained part 112, the clamping space 121 will tightly clamp the restrained part 112 of the restrained part 11.

[0034] The predetermined temperature difference value mentioned in the present invention means that when the temperature difference between the clamping part and the clamped part reaches a specific value, the clamping space formed by the clamping part can be used for the clamping part to enter and exit. If the temperature difference between the two is less than a specific value, the clamping part cannot enter and exit the clamping space.

[0035] When the clamping part 12 and the held part 11 are to be separated, the clamping part 12 is heated to enlarge the overall size of the clamping space 121. Since the low heat transfer layer 13 on the surface of the held part 112 has a higher thermal resistance than the held part 11 and the clamping part 12, the heat energy generated when the clamping part 12 is heated will be isolated by the low heat transfer layer 13, so that the outer diameter of the held part 11 is not likely to increase proportionally due to the heat. Therefore, the held part 11 can be separated from the heated clamping part 12'.

[0036] From the above embodiments, it can be seen that the method for assembling the temperature difference assembly component is as follows: Figure 4 As shown, first, as in step 21, the clamping part is heated so that the clamping space is slightly larger than the sum of the thickness of the restrained part and the low heat transfer layer. For example, the clamping part is placed in a high-temperature oven to heat it to expand. Alternatively, the restrained part can be placed in a freezer to shrink its volume and increase the gap between the clamping space and the restrained part. Then, as in step 22, the restrained part is placed in the clamping space, and the low heat transfer layer is located between the clamping part and the restrained part, thereby reducing heat conduction between the clamping part and the restrained part. Finally, as in step 23, the clamping part is placed in a room temperature or freezer environment to cool the clamping part so that the clamping space is reduced until the clamping part tightly clamps the low heat transfer layer and the restrained part.

[0037] When the temperature difference assembly is used in a motor, Figure 5 As shown in the second embodiment, the motor rotor 33 is used as a clamping part, and the motor shaft 34 is used as a restrained part. In this embodiment, the inner side of the shaft hole of the rotor 33 is coated with a low heat transfer layer 35. The low heat transfer layer 35 is made of a high heat capacity material such as phenolic resin, and its heat capacity is ten times that of steel. When the clamping part is heated and the temperature rises, the phenolic resin can effectively absorb a large amount of heat energy, slowing down the heat conduction from the clamping part to the restrained part, allowing a longer assembly operation time. If the rotor 33 and the shaft 34 are to be disassembled, the rotor 33 is heated to enlarge the shaft hole, and the low heat transfer layer 35 inside the shaft hole can block most of the heat energy from being conducted to the shaft 34, preventing the shaft 34 from expanding and enlarging with the rotor 33, so that the shaft 34 can be pulled out of the shaft hole of the rotor 33. After long-term use, the shaft center of the rotor will often be twisted and skewed. In the prior art, after heating and assembly, the shaft center is completely clamped in the rotor. When the rotor is heated, the heat energy is also transferred to the shaft center, causing the shaft center and the rotor to expand synchronously due to heat. The disclosure of the present invention can clearly improve the problem that the shaft center cannot be disassembled, repaired, or replaced after the motor is assembled.

[0038] Of course, as can be easily understood by those familiar with the technical field, for the temperature difference assembly component of the present invention, the constrained part is not limited to a cylindrical structure, and the clamping part is not limited to a single component. As Figures 6 to 8 shown in the third preferred embodiment, the temperature difference assembly component in this embodiment includes a constrained part 41 and two clamping parts 42. The constrained part 41 has a constrained main body 411 and two constrained parts 412 respectively extending from both sides of the constrained main body 411. In particular, an independent low heat transfer layer 43 made of, for example, artificial rubber is provided between the constrained part 412 and the clamping part 42. The appearance of the constrained part 41 presents a three-dimensional shape similar to the Chinese character "凸" (tu), and the clamping part 42 is a cube and forms a clamping space 420 corresponding to the shape of the constrained part 412. The appearance presented by the clamping part 42 is similar to the three-dimensional shape of the Chinese character "凹" (ao).

[0039] When the clamping part 42 is heated to reach a predetermined temperature difference value from the constrained part 41, as Figure 6 shown, the clamping space 420 can accommodate the low heat transfer layer 43 and the constrained part 412. After cooling, as Figure 7 and Figure 8 , the constrained part 41 is tightly clamped by the reduced clamping space 420, so that the clamping part 42 and the constrained part 41 can be firmly connected. When disassembling, only the clamping part 42 needs to be heated to the predetermined temperature difference value to make the clamping space 420 larger than the constrained part 412, and then the constrained part 41 and the clamping part 42 can be separated. Since the low heat transfer layer 43 can block most of the heat energy from being conducted to the constrained part 41, the constrained part 41 will not expand along with the heating process of the clamping part 42.

[0040] Furthermore, if the above temperature difference assembly components are combined with each other, a lightweight rigid body assembly with temperature difference assembly components of the present invention can be formed. As Fig. 9 shown, the rigid body assembly 50 is exemplified as the box body of a vehicle battery system. Since the total weight of the battery pack required for current electric vehicles can reach more than five hundred kilograms, which is much greater than the weight of one or two hundred kilograms of gasoline and diesel engines of the same grade, without a proper support and bearing structure, it will not be able to bear the weight smoothly. However, to build a corresponding rigid body bearing structure will cause a sharp increase in the vehicle body weight, greatly reducing the vehicle's acceleration and endurance.

[0041] In particular, safety during vehicle collisions is a concern. Since electric vehicle batteries store huge amounts of electrical energy, if they cannot be properly protected and fixed during collisions, the electrical energy released by damaged batteries and short circuits will be converted into heat energy, causing tightly stacked battery cells to expand and squeeze each other. Once battery fluid leaks, more battery cells will short circuit, ultimately causing all battery energy to be released in a short period of time, which will not only burn but may even explode. Therefore, the best way is to create complete protection in all directions on the top, bottom, left, and right sides of the battery pack, but conversely, strong and solid protection will significantly reduce the acceleration and endurance of the vehicle. In this dilemma, the present invention discloses a lightweight rigid resistor that can simultaneously solve the above dilemma.

[0042] The rigid body assembly 50 in this embodiment includes two controlled parts 51, two controlled parts 54, a plurality of clamping parts 52 and a plurality of low heat transfer layers 53. The upper controlled part 51 and the lower controlled part 54 are both long rod-shaped bodies, which can be surrounded by a plurality of clamping parts 52 to form a closed support frame. In this embodiment, the clamping parts 52 are divided into four types, namely, clamping parts 521, clamping parts 522, clamping parts 523 and clamping parts 524. The clamping part 521 can be used to lock the vehicle battery. The combination of the lower clamping parts 522, clamping parts 523 and the controlled part 51 can effectively disperse the weight of the vehicle battery. The clamping part 522 can withstand compression stress, and the clamping part 523 and the controlled part 51 can withstand tension stress.

[0043] Since there is a low heat transfer layer 53 between the clamping member 52 and the controlled members 51 and 54, the heat conduction between the two can be slowed down. Therefore, if the size of the rigid body component 50 needs to be changed, it is only necessary to heat the clamping member 523 to enlarge the clamping space 520 formed by the clamping member 52, and then the controlled members 51 and 54 can be pulled out to replace the clamping member 52 of the required size. If it is necessary to strengthen the stress that the rigid body component 50 can withstand, the structural strength can be increased by increasing the number of clamping members 52. The clamping member 524 can be used as a support point for the cooling pipe of the vehicle battery system. In addition to changing the position of the support point according to the needs, it also solves the problem of traditionally adding support points and requiring additional welding or locking.

[0044] Apart from Fig. 9In addition to coating the low heat transfer layer 53 on the inner surface of the clamping part 52, a phase change material such as tin can also be coated on the component 54 as the low heat transfer layer 53. When the high-temperature clamping parts 521 and 522 are combined with the component 54, the low heat transfer layer 53 will absorb heat and change from solid to liquid, temporarily delaying the temperature rise of the component 54 to allow a longer operating time. At the same time, when the tin is liquefied, it can fill the gap between the clamping parts 521, 522 and the component 54, so that the gap between the metal parts of the lightweight rigid body component is effectively filled. The part that contacts the battery cell has a very good conductive effect, which can also provide a common ground between the battery cells. The clamp 521 that locks the vehicle battery is only electrically connected to the clamp 522 connected to the receiving part 54. Once the battery leaks, because the low heat transfer layer 53 at the connection of the receiving part 51 is made of, for example, the above-mentioned ceramic insulating material, the vehicle body connected to the receiving part 51 will not be affected by the battery leakage, and the electrical energy will not be transmitted to the vehicle body to affect the vehicle control circuit.

[0045] As shown in this embodiment, the number of components in the preparation process is greatly reduced, but the assembled product can be easily changed to adapt to various different demand environments and improve application flexibility; especially in the complex assembly process, any combination position can be selected at any time for disassembly and adjustment, which greatly improves the convenience of assembly and disassembly, significantly simplifies the difficulty of assembly / disassembly operations, and improves assembly and disassembly efficiency. The assembled rigid body components have a stable and strong structure but are very light in weight, and can be used as structures such as vehicle frames, car doors, battery support structures of electric vehicles, or even aircraft, bridges, etc.

[0046] Another embodiment of the lightweight rigid body assembly with temperature difference assembly components of the present invention is as follows Fig.10 As shown, the rigid body assembly 60 includes three different types of controlled parts 61 and two clamping parts 62 with triangular structures. The low heat transfer layer is formed inside the clamping spaces 621, 622, and 623 of the clamping part 62. The controlled part 61 includes a controlled part 611, a controlled part 612, and a controlled part 613. The controlled part 611 has a cylindrical shape corresponding to the clamping space 621. The controlled part 612 is located at the upper position in the figure and has an upwardly extending convex part 614. The convex part 614 can correspond to the concave part 624 communicating with the clamping space 622, so that the controlled part 612 can be more firmly connected when clamped by the clamping part 62. The surface of the controlled part 613 is formed with extremely fine concave lines, so that when the controlled part 613 is accommodated in the clamping space 623, the stress when the clamping part 62 and the controlled part 613 are combined can be increased.

[0047] In summary, the temperature difference assembly component of the present invention uses a low heat transfer layer to slow down the heat conduction between the clamp and the controlled part, so that the rate of thermal expansion of the clamp can be greater than that of the controlled part, thereby quickly separating the clamp and the controlled part; the assembly method of the temperature difference assembly component of the present invention allows the controlled part and the clamp to be quickly assembled and disassembled, solving the problem of difficult disassembly in the conventional technology; the lightweight rigid body component of the temperature difference assembly component of the present invention further forms a three-dimensional structure through a plurality of controlled parts, clamps and a low heat transfer layer disposed between the two, so that the structure of the rigid body component can be stronger and lighter. In particular, by selecting the material of the low heat transfer layer, the battery effect between dissimilar metals can be selectively avoided, and lightweight rigid body components that are electrically insulated or well conductive can be selectively constructed.

[0048] The clamping member and the controlled member described in the present invention are not limited to metal materials, and any material with thermal expansion and contraction properties, such as carbon fiber or resin, can also be used. In addition to using high thermal resistance materials, the low heat transfer layer can also use high electrical resistance materials to prevent the clamping member and the controlled member from being electrically conductive, thereby preventing the electronic parts on the rigid body assembly from being short-circuited or damaged due to electrical conduction.

Claims

1. A temperature difference assembly component, characterized in that it comprises: A controlled member, the controlled member having a controlled body and a controlled portion extending from the controlled body; a clamping member, the clamping member is formed with at least one clamping space corresponding to the shape of the above-mentioned restrained part, and the above-mentioned clamping space has a size slightly smaller than the above-mentioned restrained part, so that when the temperature of the above-mentioned clamping member is higher than the temperature of the above-mentioned restrained part by a predetermined temperature difference, the clamping space can just allow the above-mentioned restrained part to enter and exit, and when the temperature difference between the clamping member and the above-mentioned restrained part is less than the aforementioned predetermined temperature difference, the size of the clamping space can tightly clamp the above-mentioned restrained part of the above-mentioned restrained part; A low heat transfer layer is provided between the above-mentioned restrained part and the clamping piece where the above-mentioned clamping space is formed, and the low heat transfer layer has a lower thermal conductivity value than the above-mentioned restrained part and the above-mentioned clamping piece, so that when temperature control is applied to make the temperature of the clamping piece higher than the temperature of the above-mentioned restrained part, the temperature difference between the above-mentioned restrained part and the above-mentioned clamping piece can be continuously increased to the above-mentioned predetermined temperature difference value. The above-mentioned low heat transfer layer is a high heat capacity material layer with a unit heat capacity higher than that of the above-mentioned restrained part and the above-mentioned clamping piece.

2. The temperature difference assembly component according to claim 1, characterized in that: The restrained part is a long straight cylinder, and the clamping space is a circular hole whose inner diameter is slightly smaller than the sum of the outer diameter of the long straight cylinder and the thickness of the low heat transfer layer.

3. The temperature difference assembly component according to claim 1, characterized in that: The low heat transfer layer is formed on the outer surface of the restricted portion.

4. The temperature difference assembly component according to claim 1, characterized in that: The low heat transfer layer is formed inside the clamping space.

5. A method for assembling a temperature difference assembly component, wherein a clamping component is firmly connected to a controlled component, the controlled component having a controlled body and a controlled portion extending from the body, the clamping component forming a clamping space, the clamping space having a shape corresponding to the controlled portion, and a low heat transfer layer is provided between the controlled portion and the clamping space, and the low heat transfer layer has a unit heat capacity higher than that of the high heat capacity material layer of the controlled component and the clamping component, wherein: The method comprises the following steps: a) heating the clamping member so that the clamping space is slightly larger than the sum of the thickness of the clamped portion and the low heat transfer layer; b) accommodating the restrained portion in the clamping space, and making the low heat transfer layer located between the clamping member and the restrained portion, thereby reducing heat conduction between the clamping member and the restrained portion; c) Cooling the clamping member to reduce the clamping space to a point where the clamping member tightly clamps the low heat transfer layer and the constrained portion.

6. A lightweight rigid body assembly with a temperature difference assembly component, characterized in that at least include: A plurality of controlled parts, each of which has a controlled body and a controlled portion extending from the controlled body; A plurality of clamping members, each of which is respectively formed with at least one clamping space having a shape corresponding to the restrained portion of one of the restrained members, and the clamping space has a size slightly smaller than the corresponding restrained portion, so that when the temperature of the clamping member is higher than the temperature of the corresponding restrained member by a predetermined temperature difference, the clamping space can just allow the corresponding restrained portion to enter and exit, and when the temperature difference between the clamping member and the corresponding restrained member is less than the predetermined temperature difference, the size of the clamping space can tightly clamp the corresponding restrained portion of the corresponding restrained member; A plurality of low heat transfer layers are respectively disposed between the clamping space and the corresponding restrained portion of each pair of corresponding clamping members, and the low heat transfer layers have a higher unit heat capacity than the high heat capacity material layers of the restrained member and the clamping member, so that when temperature control is applied to make the temperature of the clamping member higher than that of the corresponding restrained member, the temperature difference between the corresponding restrained member and the clamping member can be continuously increased to the predetermined temperature difference value; and The controlled part and the clamping part together form a three-dimensional structure.

7. The lightweight rigid body assembly with temperature difference assembly component according to claim 6, characterized in that: The three-dimensional structure comprises at least one closed support frame surrounded by the controlled member and the clamping member.

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