Thermoelectric module and method for its manufacture

Abstract

Thermoelectric module (10), comprising: a thermoelectric material of N type (110); a P-type thermoelectric material (120) arranged to be spaced apart from the N-type thermoelectric material (110); and a flexible electrode (200) electrically connected to the N-type thermoelectric material (110) and to the P-type thermoelectric material (120), wherein the flexible electrode (200) is configured to adapt to the curvature of an object, wherein the N-type thermoelectric material (110) and the P-type thermoelectric material (120) are part of a unit thermoelectric material (100), and wherein the thermoelectric module comprises a plurality of unit thermoelectric materials, the plurality of unit thermoelectric materials being spaced apart from each other along the curvature of the object, wherein the multitude of thermoelectric materials of a unit are spaced apart from each other in the circumferential or longitudinal direction of the object, further comprising a holding element (230) which supports one of the thermoelectric materials of a unit (100) which are adjacent to each other in the circumferential direction or in the longitudinal direction of the object, and a remaining portion of the thermoelectric materials of a unit which are adjacent to each other, wherein the retaining element (230) stores the N-type thermoelectric material (110) of one of the adjacent thermoelectric materials of a unit and the P-type thermoelectric material (120) of one remaining of the adjacent thermoelectric materials of a unit, wherein the retaining element (230) is arranged along the curvature of the object such that one long side of the same is aligned in the circumferential direction of the object, wherein the retaining element (230) is one of a plurality of retaining elements, the plurality of retaining elements being arranged in the circumferential direction of the object; and wherein the thermoelectric module (10) has a support element (240) which connects the retaining elements and supports the arrangement of the retaining elements, wherein the support element (240) is a wire continuously wound around the retaining elements.

Description

TECHNICAL AREA

[0001] The present disclosure relates to a thermoelectric module and a method for manufacturing the same. TECHNICAL BACKGROUND

[0002] A thermoelectric device is a device that converts heat energy into electrical energy, or vice versa. The thermoelectric device is also known as a thermoelectric module, Peltier module, or thermoelectric cooler (TEC). Thermoelectric devices are widely used as cooling or heating devices, utilizing the Peltier effect, in which, when an electric current is applied to opposite ends of a circuit made up of dissimilar conductors, one side heats up and the other side cools down.

[0003] A steering wheel is a device generally installed in a vehicle to allow a driver to steer the vehicle in a desired direction. The force exerted by the driver turning the steering wheel is transmitted to drive wheels, which are equipped with a suspension system, via a steering mechanism. This mechanism includes a steering column, a rack and pinion to change the direction of the drive wheels, thereby altering the direction in which the vehicle travels according to the driver's intention.

[0004] In general, a steering wheel has a ring-shaped rim that a driver grips with their hands, a hub formed at the central part of the steering wheel to which a steering column is coupled, and a spoke formed to be of a predetermined size in order to contain a horn and an airbag inside it.

[0005] On hot summer days, a vehicle's steering wheel is directly exposed to strong sunlight, causing its surface temperature to rise to a point where it becomes difficult for a driver to grip. On cold winter days, the steering wheel's surface temperature drops to a point where it becomes difficult for a driver to grip.

[0006] Therefore, in recent years a temperature control device has been developed to directly cool or heat a steering wheel using a thermoelectric device capable of performing heating and cooling operations, in order to increase the market value of a steering wheel compared to one that only has basic functions.

[0007] However, a conventional bulk-type thermoelectric device is rigid and difficult to bend, making it difficult to attach to an object with a strong curve, such as the rim of a steering wheel. Furthermore, there are limitations regarding ensuring a suitable mounting position and area for the conventional bulk-type thermoelectric device. It is also difficult to ensure a sufficient surface area for heat dissipation or absorption.

[0008] In recent years, various studies have therefore been conducted to enable the unhindered bending of a thermoelectric device to adapt to the curvature of an object and to mount the thermoelectric device on a curved surface of the object, thereby ensuring effective cooling and heating zones of the thermoelectric device; however, the results of these studies are insufficient, which is why further development is needed.

[0009] Document DE 196 46 915 A1 is known, which shows a thermoelectric conversion module and a method for manufacturing it.The large-capacity, curved-surface thermoelectric conversion module, which can be attached to a corresponding curved surface of a base member, is fabricated by inserting N-type and P-type semiconductor strips into through-holes provided in a honeycomb structure body; by filling further spaces between the walls defining the through-holes and the semiconductor strips with electrically insulating fillers made of an easily deformable material, such as polyimide resin and silicone resin; by cutting the honeycomb structure body into a plurality of thermoelectric conversion module main bodies, each having a desired surface configuration; and by providing metal electrodes on both top surfaces of the thermoelectric conversion module main body such that alternating N-type and P-type semiconductor elements are connected in cascade.

[0010] Furthermore, the document US 2019 / 0 148 617 A1 is known. DEPICTION

[0011] The present invention relates to a thermoelectric module and a manufacturing method for this module. Individual embodiments relate to a thermoelectric module that can be easily mounted on a curved surface of an object, and to a manufacturing method for this module.

[0012] Embodiments of the present disclosure can help to mitigate problems such as those discussed at the outset. For example, embodiments of the present disclosure can provide a thermoelectric module that offers improved freedom of installation and can be easily mounted on a curved surface of an object, as well as a method for manufacturing this module.

[0013] Further embodiments provide a thermoelectric module which has improved freedom with regard to the arrangement of N-type and P-type thermoelectric materials and which is freely bendable to conform to a curved surface of an object, and a method for manufacturing this module.

[0014] According to the invention, the above and further problems will be solved by providing a thermoelectric module which has the features according to claim 1.

[0015] This makes it possible to simplify the construction of a thermoelectric module and to easily mount the thermoelectric module on a curved surface of the object.

[0016] However, a conventional bulk-type thermoelectric device is rigid and difficult to bend, making it difficult to attach to an object with a strong curve, such as the rim of a steering wheel. Furthermore, there are limitations regarding ensuring a suitable mounting position and area for the conventional bulk-type thermoelectric device. It is also difficult to ensure a sufficient surface area for heat dissipation or absorption.

[0017] However, according to the present disclosure, since the N-type thermoelectric material and the P-type thermoelectric material are connected to the flexible electrode which is able to adapt to the curvature of the object, the freedom of arrangement (the freedom to bend) of the N-type thermoelectric material and the P-type thermoelectric material is improved, and thus the thermoelectric module can be arranged in such a way that it is coiled up to adapt to the curvature of the object.

[0018] Thus, it is possible to easily mount the thermoelectric module on the object without being restricted by the curvature of the object and to ensure a sufficient effective surface for dissipating or absorbing heat.

[0019] N-type thermoelectric material and P-type thermoelectric material can form a single thermoelectric material. This single thermoelectric material can be provided in multiples and spaced apart along the curvature of the object.

[0020] The multiple thermoelectric materials of a unit can be spaced apart from each other in the circumferential or longitudinal direction of the object.

[0021] The flexible electrode can connect the thermoelectric materials of a unit in series. In a structure where the thermoelectric materials of a unit forming the thermoelectric module are connected in series, it is possible to ensure sufficient resistance to prevent overcurrent, thereby maintaining a suitable current level with respect to the external voltage.

[0022] The flexible electrode can have a first flexible electrode electrically connected to one end of the N-type thermoelectric material and to one end of the P-type thermoelectric material, each forming the thermoelectric materials of a unit, and a second flexible electrode electrically connected to an opposite end of the P-type thermoelectric material of one of the adjacent thermoelectric materials of a unit and to an opposite end of the N-type thermoelectric material of the remaining adjacent thermoelectric materials of a unit.

[0023] The thermoelectric module has a holding element which supports one of the adjacent thermoelectric materials of a unit in the circumferential or longitudinal direction of the object, or the remaining portion of the adjacent thermoelectric materials of a unit.

[0024] The retaining element carries the thermoelectric material from one of the adjacent thermoelectric materials of a unit and the P-type thermoelectric material of the remaining adjacent thermoelectric materials of a unit.

[0025] The retaining element can have a first receiving hole in which the N-type thermoelectric material is received, and a second receiving hole in which the P-type thermoelectric material is received.

[0026] The retaining element is provided in multiples, and these multiple retaining elements are positioned along the curvature of the object, in particular a steering wheel, such that their long sides are aligned in the circumferential direction of the object or steering wheel. Therefore, since the retaining elements are provided along the curvature of the steering wheel with their long sides aligned in the circumferential direction, it is possible to position the retaining elements along the curvature of the steering wheel in such a way that they are in close contact with the outer surface of the steering wheel.

[0027] According to the invention, the thermoelectric module has a support element that connects the retaining elements arranged in the circumferential direction of the object and supports the arrangement of the retaining elements.

[0028] Accordingly, since the retaining elements are supported by the support element, it is possible to stably support the arrangement of the retaining elements and to minimize the spacing between the retaining elements.

[0029] The support element has a wire continuously wound around the retaining elements.

[0030] Each of the retaining elements can have a through-hole formed in it, and the wire can be wound onto the retaining elements and pass through the through-hole. Accordingly, since the wire is wound onto the retaining elements and simultaneously passes through the through-hole formed in each of the retaining elements, it is possible to secure the retaining elements more securely by means of the wire and to more effectively prevent them from separating.

[0031] The N-type and P-type thermoelectric materials can be brought into close contact with the object by applying tension to the wire. Optionally, the wire can be fixed to the steering wheel.

[0032] According to another aspect of the invention, a method for manufacturing a thermoelectric module is specified, which method comprises the features according to claim 8.

[0033] The fabrication of the thermoelectric module comprises forming a flexible electrode layer on the top side of a base plate, placing a mounting plate for thermoelectric material on the top side of the flexible electrode layer, mounting the N-type and P-type thermoelectric material in mounting holes formed in the mounting plate for the thermoelectric material, soldering the N-type and P-type thermoelectric material to the flexible electrode layer, removing the mounting plate for the thermoelectric material, and forming a first flexible electrode, electrically connected to one end of the N-type thermoelectric material and to one end of the P-type thermoelectric material, by cutting the flexible electrode layer;as well as forming a second flexible electrode that is electrically connected to an opposite end of the N-type thermoelectric material and an opposite end of the P-type thermoelectric material. The thermoelectric module can be manufactured in a planar form.

[0034] The process involves, after forming the first flexible electrode, mounting a holding element to support the adjacent N-type and P-type thermoelectric materials. The second flexible electrode will be formed with the holding element mounted.

[0035] When mounting the retaining element, the N-type thermoelectric material is received in a first receiving hole formed in the retaining element, and the P-type thermoelectric material can be received in a second receiving hole formed in the retaining element.

[0036] The process involves winding a wire onto the holding element, which forms the thermoelectric module.

[0037] When bending the thermoelectric module, the first flexible electrode and the second flexible electrode can be formed to fit the curvature of an object.

[0038] When bending the thermoelectric module, the first flexible electrode and the second flexible electrode can be formed to fit the curvature of the object by pulling on the holding element using the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] A deeper understanding of the above and other tasks, features and further advantages of the present disclosure will be achieved by means of the following detailed description in conjunction with the accompanying drawings, in which: Fig. 1 is a view that represents an object onto which a thermoelectric module is applied according to an embodiment of the present disclosure; Fig. 2 is a cross-sectional view, taken along line AA in Fig. 1; The Fig. 3 and Fig. Four views are shown, representing the thermoelectric module according to the embodiment of the present disclosure; Fig. 5 is a view that illustrates the construction of the arrangement of the thermoelectric module according to an embodiment of the present disclosure; and The Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14 to Fig. The 15 views illustrate a method for manufacturing a thermoelectric module according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF EXAMPLES OF EXECUTION

[0040] The advantages and features of the present disclosure and methods for achieving them will become apparent from the description of the aspects of this document below, with reference to the accompanying drawings. However, the present disclosure is not limited to the aspects disclosed herein, but can be implemented in various different ways. These aspects are intended to complete the description of the present disclosure and to convey to a person skilled in the art the scope of protection afforded by the present disclosure. It should be noted that the scope of protection of the present invention is defined exclusively by the claims. Identical reference numerals denote identical elements.Regarding the description of the present revelation, a detailed description may be omitted if a detailed description of relevant, known technology is determined to obscure the spirit of the present revelation unnecessarily.

[0041] Fig. Figure 1 is a view representing an object onto which a thermoelectric module is applied according to an embodiment of the present disclosure, and Fig. Figure 2 is a cross-sectional view, taken along line AA of the Fig. 1. The Fig. 3 and Fig. Figure 4 shows views of the thermoelectric module according to the embodiment of the present disclosure, and Fig. Figure 5 is a view showing the structure of the arrangement of the thermoelectric module according to the embodiment of the present disclosure.

[0042] Referring to the Fig. 1, Fig. 2, Fig. 3, Fig. 4 to Fig. 5 comprises a thermoelectric module 10 according to an embodiment of the present disclosure comprising N-type thermoelectric materials 110, P-type thermoelectric materials 120 arranged to be spaced apart from the B-type thermoelectric materials 110, and flexible electrodes 200 electrically spaced apart from the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120, and arranged to conform to the curvature of an object.

[0043] The thermoelectric module 10 according to the embodiment of the present disclosure can be mounted on an object with a curved outer surface. The present disclosure is not limited or restricted to the type or structure of the object.

[0044] In one example, referring to Fig. 1, the thermoelectric module 10 according to the embodiment of the present invention is mounted on a rim 22 of a steering wheel 20.

[0045] Referring to the Fig. 2, Fig. 3, Fig. 4 to Fig. 5 The N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are arranged such that they form thermoelectric materials of a unit 100.

[0046] Each of the thermoelectric materials in a Unit 100 comprises a single N-type thermoelectric material 110 and a single P-type thermoelectric material 120, which have opposite polarities. The thermoelectric materials in a Unit 100 can be arranged in any of several different patterns, depending on the required conditions and design specifications.

[0047] In one example, the thermoelectric materials of a unit 100 can be arranged such that they are spaced apart from each other along the curvature of an object (for example, the rim of a steering wheel). The thermoelectric materials of a unit 100 can be arranged such that they are spaced apart from each other in the circumferential (or longitudinal) direction of an object, or they can be arranged in a zigzag pattern.

[0048] Specifically, the thermoelectric materials of a unit 100, arranged such that they are spaced apart from each other in the circumferential direction of the object 20, form a first group 101 of thermoelectric materials of a unit. The thermoelectric materials of a unit 100, arranged such that they are spaced apart from the first group 101 of thermoelectric materials of a unit in the longitudinal direction of the object 20, and arranged such that they are spaced apart from each other in the circumferential direction of the object 20, form a second group 102 of a thermoelectric material of a unit.The N-type thermoelectric material 110, which is arranged at an end section of the first group 101 of thermoelectric material of a unit or the second group 102 of thermoelectric material of a unit, and the P-type thermoelectric material 120, which is arranged at an end section of the other of the first group 101 of thermoelectric material of a unit or the second group 102 of thermoelectric material of a unit, form a thermoelectric material 103 of an end unit.

[0049] In this case, the first group of 101 thermoelectric materials of a unit and the second group of 102 thermoelectric materials of a unit can be provided in multiples, arranged alternately along the longitudinal direction of object 20. The number of first groups of 101 thermoelectric materials of a unit and the number of second groups of 102 thermoelectric materials of a unit can be varied depending on the required conditions and construction specifications.

[0050] The flexible electrodes 200 are connected to the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120, and are designed to bend in order to conform to the curvature of the steering wheel 20.

[0051] Accordingly, since the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are connected to the flexible electrodes 200, which are able to bend to conform to the curvature of the object, the freedom of arrangement of the N-type and P-type thermoelectric materials 110 and 120 is improved. Thus, the thermoelectric module 10 can be arranged in such a way that it is coiled to conform to the curvature of the object. As a result, it is possible to mount the thermoelectric module 10 on the object 10 without restriction, without limitations due to the curvature of the object, and to ensure a sufficient effective area for dissipating or absorbing heat.

[0052] The flexible electrodes 200 are electrically connected to the thermoelectric materials 100 of the unit, and current is applied to the flexible electrodes 200 by a power supply unit (not shown).

[0053] The application of current to the flexible electrodes 200 is defined as encompassing both forward and reverse current application. For example, applying a forward current to the flexible electrodes 200 can heat the thermoelectric materials 100 of the unit. Conversely, applying a reverse current to the flexible electrodes 200 can cool the thermoelectric materials 100 of the unit.

[0054] The flexible electrodes 200 can be electrically connected to the thermoelectric materials 100 of the unit and can generally be formed from a metallic material (for example, a copper foil) capable of bending. However, the present disclosure is not limited or restricted to the material of the flexible electrodes 200.

[0055] The flexible electrodes 200 connect the thermoelectric materials 100 of the unit, which constitute the thermoelectric module 10, in series with the power supply unit.

[0056] Specifically, the flexible electrodes 200 comprise first flexible electrodes 210, each electrically connected to one end of the N-type thermoelectric material 110 and one end of the P-type thermoelectric material 120, which together comprise the thermoelectric material 100 of the unit, and second flexible electrodes 220, each electrically connected to the opposite end of the P-type thermoelectric material of one of two adjacent thermoelectric materials 100 of a unit and the opposite end of the N-type thermoelectric material 110 of the other of the two adjacent thermoelectric materials 100 of the unit.

[0057] In one example, referring to Fig. 3, each of the first flexible electrodes 210 is electrically connected to the upper end of the N-type thermoelectric material 110 and the upper end of the P-type thermoelectric material 120, which represent each of the thermoelectric materials 100 of the unit, and each of the second flexible electrodes 220 is electrically connected to the lower end of the P-type thermoelectric material 120 of one of two adjacent thermoelectric materials 100 of a unit and to the lower end of the N-type thermoelectric material 110 of the other of the two adjacent thermoelectric materials 100 of a unit.

[0058] The flexible electrodes 200 further comprise third flexible electrodes 203, each connected to the N-type thermoelectric material 110 and the P-type thermoelectric material 120, which represent each of the thermoelectric materials of an end unit 103. The first groups 101 of thermoelectric materials of a unit and the second groups 102 of thermoelectric materials of a unit are connected in series via the third flexible electrodes 203.

[0059] In the structure where the thermoelectric materials 100 of a unit representing the thermoelectric module 10 are connected in series with the power supply unit, it is possible that the thermoelectric module 10 ensures sufficient resistance, which prevents the application of overcurrent to the thermoelectric module 10.

[0060] In a structure 10 (not shown) where the thermoelectric materials 100 of a unit, representing the thermoelectric module 10, are connected in parallel with the power supply unit, each of the thermoelectric materials 100 of a unit has a low resistance. Thus, even when a voltage is applied to the thermoelectric module 10, a relatively high current flows through each of the thermoelectric materials 100 of a unit. When the thermoelectric materials 100 of a unit, representing the thermoelectric module 10, are connected in series with the power supply unit 10 to form a unit module, it is possible to ensure sufficient resistance to suppress an overcurrent, thereby maintaining a suitable current level with respect to an external voltage.

[0061] The thermoelectric module 10 can also have retaining elements 230, each of which supports two adjacent thermoelectric materials 100 of a unit.

[0062] In one example, each of the retaining elements 230 is provided to support one of two adjacent thermoelectric materials 100 of a unit that are arranged in the circumferential (or longitudinal) direction of the steering wheel 20, and the other of the two adjacent thermoelectric materials 100 of a unit.

[0063] Specifically, each of the retaining elements 230 supports the N-type thermoelectric material 110 of two adjacent thermoelectric materials 100 of a unit and the P-type thermoelectric material 120 of the other of the two thermoelectric materials 100 of a unit.

[0064] In one example, each of the retaining elements 230 is formed in the form of a rectangular block and has a first receiving hole 232 in which a corresponding N-type thermoelectric material 110 is received, and a second receiving hole 234 in which a corresponding P-type thermoelectric material 120 is received. The N-type thermoelectric material 110 can be received in the first receiving hole 232 such that its upper and lower end sections are exposed externally, and the thermoelectric material 120 can be received in the second receiving hole 234 such that its upper and lower end sections are exposed externally.

[0065] Accordingly, since the thermoelectric materials 100 of a unit are supported by the retaining elements 230, it is possible to adjust the positions of the different thermoelectric materials 100 of a unit connected to the retaining elements 230 simply by adjusting the positions of the retaining elements 230. Furthermore, with this structure, in which the retaining elements 230 support the thermoelectric materials 100 of a unit, it is possible to maintain the arrangement of the thermoelectric materials 100 of a unit and to minimize damage to the thermoelectric materials 100 of a unit due to external influences and disturbances.

[0066] The retaining elements 230 can be provided along the curvature of the steering wheel 20 such that their long sides are aligned in the circumferential direction of the steering wheel 20. Therefore, it is possible to provide the retaining elements 230 along the curvature of the steering wheel 20 such that their long sides are arranged in the circumferential direction of the steering wheel 20, and to position the retaining elements 230 along the curvature of the steering wheel 20 such that they are in close contact with the outer surface of the steering wheel 20.

[0067] The thermoelectric module 10 also has a support element 240 which connects the retaining elements 230 arranged in the circumferential direction of the object and supports the arrangement of the retaining elements 230.

[0068] Accordingly, since the retaining elements 230 are supported by the support element 240, it is possible to stably support the arrangement of the retaining elements 230 and to minimize separation of the retaining elements 230.

[0069] The support element 240 can be formed in any number of different structures capable of connecting the retaining elements 230. The present disclosure is not limited to the structure or type of the support element 240.

[0070] In one example, the support element 240 has a wire 242 that is continuously wound onto the retaining elements 230.

[0071] In this context, the continuous winding of the wire 242 onto the retaining elements 230 means, for example, that the retaining elements 230 are bound by a single wire 242.

[0072] Each of the retaining elements 230 can have a through-hole 236 formed in its interior, through which the wire 242 passes in order to be wound onto the retaining elements 230. Accordingly, since the wire 242 is wound onto the retaining elements 230 and simultaneously passes through the through-hole formed in each of the retaining elements 230, it is possible to secure the retaining elements 230 more securely using the wire 242 and to more effectively prevent them from separating.

[0073] The N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 can be brought into close contact with the object by applying tension to the wire 242, and optionally the wire 242 can be fixed (e.g., tied) to the steering wheel 20.

[0074] Although the embodiment of the present disclosure describes and illustrates by way of example that the retaining elements 230 are fixed to the steering wheel 20 by means of the wire 242, the present disclosure is not limited to this. According to a further embodiment of the present disclosure, the retaining elements (or the N-type thermoelectric materials and the P-type thermoelectric materials) can be fixed to the steering wheel by means of a binding element, such as a cable tie, an adhesive element, or the like.

[0075] The following describes a method for manufacturing a thermoelectric module according to an embodiment of the present disclosure.

[0076] Fig. Figure 6 is a view that represents a step towards the formation of an electrode layer in a method for producing a thermoelectric module according to an embodiment of the present disclosure, Fig. Figure 7 is a view that represents a step for placing a clamping plate in the method for manufacturing a thermoelectric module according to an embodiment of the present disclosure, and Fig. Figure 8 is a view that represents a step towards the assembly of thermoelectric materials in the method for manufacturing a thermoelectric module according to the embodiment of the present disclosure. Fig. Figure 9 is a view which represents a step to soldering the thermoelectric material in the method for manufacturing a thermoelectric module according to the embodiment of the present disclosure, Fig. Figure 10 is a view that represents a step for removing the clamping plate in the method for manufacturing a thermoelectric module according to an embodiment of the present disclosure, and Fig. Figure 11 is a view that represents a step towards forming first flexible electrodes in the method for producing a thermoelectric module according to the embodiment of the present disclosure. Fig. Figure 12 is a view that represents a step for placing a mounting plate in the method for manufacturing a thermoelectric module according to the embodiment of the present disclosure, Fig. Figure 13 is a view which represents a step towards forming second flexible electrodes in the method for producing a thermoelectric module according to the embodiment of the present disclosure, Fig. Figure 14 is a view which represents a step to soldering the second flexible electrodes in the method for manufacturing a thermoelectric module according to the embodiment of the present disclosure, and Fig. Figure 15 is a view representing the thermoelectric module produced by the method for producing a thermoelectric module according to the embodiment of the present disclosure.

[0077] Parts that are identical or particularly equivalent to those described above are designated with the same reference symbols, and a detailed description of these is omitted.

[0078] Referring to the Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13, Fig. 14 to Fig. 15 comprises a method for manufacturing a thermoelectric module according to an embodiment of the present disclosure, a manufacturing step for manufacturing the thermoelectric module 10, which has the N-type thermoelectric materials 110, P-type thermoelectric materials 120 spaced apart from the N-type thermoelectric materials 110, and flexible electrodes 200 electrically connected to the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120, as well as a bending step of bending the thermoelectric module 10 to conform to the curvature of an object.

[0079] In the manufacturing step, a thermoelectric module 10 is produced with the N-type thermoelectric materials 110, the P-type thermoelectric materials 120 and flexible electrodes 200.

[0080] Specifically, the manufacturing step comprises a step to form a flexible electrode layer 210' on the top side of a base plate 310, a step to place a mounting plate 320 for thermoelectric material on the top side of the flexible electrode layer 210', a step to mount the N-type thermoelectric material 110 and the P-type thermoelectric material 120 in mounting holes 322 formed in the mounting plate 320 for the thermoelectric material, a step to solder the N-type thermoelectric material 110 and the P-type thermoelectric material 120 to the flexible electrode layer 210', a step to remove the mounting plate 320 for the thermoelectric material, and a step to form initial flexible electrodes 210 that are electrically connected to the ends of the N-type thermoelectric material 110 and the P-type thermoelectric material 120.by cutting the flexible electrode layer 210'; and a step to form second flexible electrodes 220 which are electrically connected to the opposite ends of the N-type thermoelectric material 110 and the P-type thermoelectric material 120. In this fabrication step, the thermoelectric module is provided in a planar form.

[0081] In this context, providing the thermoelectric module in planar form means providing the thermoelectric module 10 in non-bent form.

[0082] With reference to Fig. In step 6, the flexible electrode layer 210' is first formed on the top side of the base plate 310 in the process of forming the electrode layer.

[0083] The flexible electrode layer 210' can generally be formed from a metallic material (for example, a copper foil) that is capable of bending flexibly. The flexible electrode layer 210' is cut to form the first flexible electrodes 210 after the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 have been soldered to it.

[0084] The following will be discussed with reference to Fig. 7 the mounting plate 320 for thermoelectric material is arranged on the top side of the flexible electrode layer 210'.

[0085] The mounting plate 320 for thermoelectric material is designed to arrange the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 in a predetermined arrangement pattern.

[0086] Specifically, a plurality of mounting holes 322 can be formed in the mounting plate 320 for thermoelectric material, and the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 can be arranged over the mounting holes 322.

[0087] Following this, with reference to Fig. 8, the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are mounted in the mounting holes 322 formed in the mounting plate 320 for thermoelectric material.

[0088] A solder paste is applied to the inside of each mounting hole 322 (top of the flexible electrode layer 210') before the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are mounted in the mounting holes 322.

[0089] The solder paste is provided in the form of a mixture of solder powder and flux. However, the present disclosure is neither limited nor restricted to the type or properties of the solder paste.

[0090] Following this, with reference to Fig. 9, the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are soldered together with the flexible electrode layer 210'.

[0091] In the soldering step, a press plate 330 can be used to press the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120. The N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are soldered to the flexible electrode layer 210' by remelting a solder paste in the state where the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are subjected to heat and pressure.

[0092] With reference to Fig. 10. Subsequently, the press plate 330 and the mounting plate 320 for thermoelectric material are removed, and then the flexible electrode layer 210' is cut to form the first flexible electrodes 210 which are electrically connected to ends of the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120.

[0093] In the step of forming the first flexible electrodes 210, the first flexible electrode layer 210' is cut such that each of the first flexible electrodes 210 corresponds to one of the thermoelectric materials 100 of a unit.

[0094] Accordingly, it is possible to simplify the process for forming the first flexible electrodes 210 and to shorten the time required to form the first flexible electrodes 210, since the step for forming the first flexible electrodes 210 is carried out in such a way that the first flexible electrodes 210 are formed simply by cutting the first flexible electrode layer 210'.

[0095] Following this, with reference to Fig. 11, after the first flexible electrodes 210 are formed, the retaining elements 230 are mounted such that each of the retaining elements 230 supports a corresponding N-type thermoelectric material 110 and a corresponding P-type thermoelectric material adjacent to each other.

[0096] Each of the retaining elements 230 is formed in the form of a rectangular block and includes first receiving holes 232 in which a corresponding N-type thermoelectric material 110 is received, and a second receiving hole 234 in which a corresponding P-type thermoelectric material 120 is received.

[0097] In the step of assembling the retaining elements 230, each of the N-type thermoelectric materials 110 is inserted into the first receiving hole 232 formed in a corresponding retaining element 230, and each of the P-type thermoelectric materials 120 is inserted into the second receiving hole 234 formed in a corresponding retaining element 230. The N-type thermoelectric material 110 can be inserted into the first receiving hole 232 such that its upper and lower end sections are exposed to the outside, and the P-type thermoelectric material 120 can be inserted into the second receiving hole 234 such that its upper and lower end sections are exposed to the outside.

[0098] Following this, with reference to Fig. 13, the second flexible electrodes 220 formed such that they are electrically connected to opposite ends of the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120.

[0099] Before the first flexible electrodes 220 are formed, a mounting plate 340 can be stacked on the base plate 310. The second flexible electrodes 220 can be formed in the state where the mounting plate 340 is stacked (see Figure 1). Fig. 12).

[0100] In one example, a (not shown) solder paste is applied to the opposite ends of the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120, and then the second flexible electrodes 220 are attached to the solder paste.

[0101] With reference to Fig. 14 After the second flexible electrodes 220 have been applied to the solder paste, the second flexible electrodes 220 with the opposite ends of the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are applied by remelting the solder paste in the state in which the N-type thermoelectric materials 110 and the P-type thermoelectric materials 120 are subjected to heat and pressure by means of the pressure plate 330.

[0102] Subsequently, the press plate 330, the mounting plate 340 and the base plate 310 are removed, thus completing the production of the thermoelectric module 10, which has a planar shape.

[0103] With reference to Fig. 15 The planar thermoelectric module 10 has a plurality of N-type thermoelectric materials 110 and a plurality of P-type thermoelectric materials 120, which are electrically connected via the first flexible electrodes 210 and the second flexible electrodes 220.

[0104] The thermoelectric module 10 is then bent to conform to the curvature of an object (for example, a steering wheel).

[0105] In one example, the thermoelectric module 10 can be arranged in the bending step so that it is coiled up, allowing the first flexible electrodes 210 and the second flexible electrodes 220 to be bent to conform to the curvature of an object.

[0106] The method for manufacturing a thermoelectric module according to the embodiment of the present disclosure may further comprise a wire winding step for winding a wire 242 onto the retaining elements 230 of the thermoelectric module 10.

[0107] In one example, each of the retaining elements 230 can have a through-hole 236 formed in it, and the wire 242 can be wound onto the retaining elements 230 and simultaneously pass through the through-hole 236 (cf. Fig. 4).

[0108] In the bending step, the first flexible electrodes 210 and the second flexible electrodes 220 are bent by pulling the retaining elements 230 using the wire 242, with the result that the thermoelectric module is bent to conform to the curvature of an object.

[0109] As can be seen from the above description, according to the present disclosure it is possible to improve freedoms regarding the installation of a thermoelectric module and thus to mount the thermoelectric module in a simple way on a curved surface of an object.

[0110] In particular, according to the present disclosure, it is possible to improve the freedom of arrangement of the N-type and P-type thermoelectric materials, thus enabling the thermoelectric module to bend freely along a curved surface of an object with strong curvature, such as a steering wheel.

[0111] Furthermore, according to the present disclosure, it is possible to mount the thermoelectric module on an object in a simple manner without restriction due to the curvature of the object, and to maximize the effective area for dissipating or absorbing heat, thereby improving the heating / cooling performance. REFERENCE MARK LIST 10 thermoelectric module 100 thermoelectric materials of one unit 101 First group of thermoelectric materials of a unit 102 second group of thermoelectric materials of a unit 110 N-type thermoelectric material 120 thermoelectric material of the P type 200 flexible electrodes 210 first flexible electrodes 210' flexible electrode layer 220 second flexible electrodes 230 retaining elements 232 first receiving hole 234 second receiving hole 236 Through hole 240 support element 242 wire 310 Base plate 320 Mounting plate for thermoelectric material 330 Press plate 340 Mounting plate

Claims

[1] Thermoelectric module (10) comprising: a thermoelectric material of N type (110); a P-type thermoelectric material (120) arranged to be spaced apart from the N-type thermoelectric material (110); and a flexible electrode (200) electrically connected to the N-type thermoelectric material (110) and to the P-type thermoelectric material (120), wherein the flexible electrode (200) is configured to adapt to the curvature of an object, wherein the N-type thermoelectric material (110) and the P-type thermoelectric material (120) are part of a unit thermoelectric material (100), and wherein the thermoelectric module comprises a plurality of unit thermoelectric materials, the plurality of unit thermoelectric materials being spaced apart from each other along the curvature of the object, wherein the multitude of thermoelectric materials of a unit are spaced apart from each other in the circumferential or longitudinal direction of the object, further comprising a holding element (230) which supports one of the thermoelectric materials of a unit (100) which are adjacent to each other in the circumferential direction or in the longitudinal direction of the object, and a remaining portion of the thermoelectric materials of a unit which are adjacent to each other, wherein the retaining element (230) stores the N-type thermoelectric material (110) of one of the adjacent thermoelectric materials of a unit and the P-type thermoelectric material (120) of one remaining of the adjacent thermoelectric materials of a unit, wherein the retaining element (230) is arranged along the curvature of the object such that one long side of the same is aligned in the circumferential direction of the object, wherein the retaining element (230) is one of a plurality of retaining elements, the plurality of retaining elements being arranged in the circumferential direction of the object; and wherein the thermoelectric module (10) has a support element (240) which connects the retaining elements and supports the arrangement of the retaining elements, wherein the support element (240) is a wire continuously wound around the retaining elements. [2] Thermoelectric module (10) according to claim 1, wherein the flexible electrode (200) comprises: a first flexible electrode (210) electrically connected to one end of the N-type thermoelectric material (110) and to one end of the P-type thermoelectric material (120), each thermoelectric material of a unit (100) comprising one of the N-type thermoelectric materials (110), one of the P-type thermoelectric materials (120) and one of the first flexible electrodes (210); and a second flexible electrode (220) which is electrically connected to an opposite end of the P-type thermoelectric material (120) of one of the adjacent thermoelectric materials of a unit (100) and to an opposite end of the N-type thermoelectric material (110) of a remaining of the adjacent thermoelectric materials of a unit (100). [3] Thermoelectric module (10) according to claim 2, comprising: a first group of thermoelectric materials of a unit (101) comprising a first plurality of thermoelectric materials of a unit arranged such that they are spaced apart from each other in a circumferential direction of the object; a second group of thermoelectric materials of a unit (102) comprising a second plurality of thermoelectric materials of a unit arranged such that they are spaced apart from the first group of thermoelectric materials of a unit in a longitudinal direction of the object and spaced apart from each other in the circumferential direction of the object; and a thermoelectric material of an end unit, comprising the N-type thermoelectric material (110) arranged at an end section of the first group of thermoelectric materials of a unit (101) and the second group of thermoelectric materials of a unit (102), and the P-type thermoelectric material (120) arranged at an end section of a remainder of the first group of thermoelectric material of a unit (101) and the second group of thermoelectric material of a unit (102). [4] Thermoelectric module (10) according to claim 3, wherein the flexible electrode further comprises a third flexible electrode which is electrically connected to the N-type thermoelectric material (110) and the P-type thermoelectric material (120) which form the thermoelectric material of an end unit. [5] Thermoelectric module (10) according to one of the preceding claims, wherein the retaining element (230) comprises: a first receiving hole (232) in which the N-type thermoelectric material (110) is received; and a second receiving hole (234) in which the thermoelectric material of type P (120) is received. [6] Thermoelectric module (10) according to one of the preceding claims, wherein each of the retaining elements (230) has a through hole (236) formed in its interior; and wherein the wire (242) is wound onto the retaining elements and simultaneously passes through the through hole (236). [7] Thermoelectric module (10) according to one of the preceding claims, wherein the N-type thermoelectric material (110) and the P-type thermoelectric material (120) are brought into close contact with the object by tension applied to the wire. [8] Procedures, comprehensive: Production of a thermoelectric module (10) comprising an N-type thermoelectric material (110), a P-type thermoelectric material (120) designed to be spaced apart from the N-type thermoelectric material (110), and a flexible electrode electrically connected to the N-type thermoelectric material (110) and the P-type thermoelectric material (120); and Bending the thermoelectric module (10) to adapt to the curvature of an object, the manufacture of the thermoelectric module (10) comprising: Forming a flexible electrode layer on the top side of a base plate (310); Placing a mounting plate (320) for thermoelectric material on a top side of the flexible electrode layer; Mounting the N-type thermoelectric material (110) and the P-type thermoelectric material (120) in mounting holes formed in the mounting plate (320) for the thermoelectric material; Soldering the N-type thermoelectric material (110) and the P-type thermoelectric material (120) to the flexible electrode layer; Removing the mounting plate (320) for thermoelectric material; Forming a first flexible electrode (210) electrically connected to one end of the N-type thermoelectric material (110) and to one end of the P-type thermoelectric material (120) by cutting the flexible electrode layer (210'); and Forming a second flexible electrode (220) which is electrically connected to an opposite end of the N-type thermoelectric material (110) and an opposite end of the P-type thermoelectric material (120), wherein the thermoelectric module (10) is produced in a planar form, further comprising, after forming the first flexible electrode, mounting a retaining element (230) to support the N-type thermoelectric material (110) and the P-type thermoelectric material (120) adjacent to each other, wherein the second flexible electrode (220) is formed in a state in which the retaining element (230) is mounted, and further comprising winding a wire onto the retaining element (230). [9] Method according to claim 8, wherein the bending of the thermoelectric module (10) comprises bending the first flexible electrode (200) and the second flexible electrode to conform to the curvature of the object. [10] Method according to claim 9, wherein the bending of the thermoelectric module comprises bending the first flexible electrode (210) and the second flexible electrode (220) to adapt to the curvature of the object by pulling on the retaining element (230) using the wire (242).

Images