Electric button, in particular intended to equip an item of clothing, and associated item of clothing

Abstract

Electric button, in particular intended to equip a garment, and associated garment The invention relates to an electric button (1) comprising at least one electrical and / or electronic component (7) capable of releasing heat during operation, a base (3) comprising at least one housing (5) in which said component (7) is mounted and at least two grooves (11) configured to receive a respective electrical cable (9) configured to be connected to said component (7), and at least two electrical crimping contacts (13) configured to be electrically connected to said component (7) and to be crimped onto a respective electrical cable (9). The electric button (1) further comprises a heat sink (15) having at least one first branch (152) in thermal contact with said component (7) and at least two second branches (153) arranged in thermal contact with the base (3). The invention also relates to a garment equipped with such a button (1).Figure for abstract: Fig. 1A .

Description

Title of the invention: Electric button, in particular intended to equip an item of clothing, and associated item of clothing Technical field

[0001] The invention relates to an electrical and / or electronic module in the form of a button, comprising at least one electrical and / or electronic component capable of releasing heat during operation. In particular, it is a lighting module or button provided with at least one light-emitting diode. Technical background

[0002] Nowadays, there are many electrical and / or electronic components, particularly small ones, which need to be connected in a simple way to an electrical circuit, particularly a power supply or control circuit. To do this, the component is generally mounted in a housing or on its support and electrical wires are soldered by hand or automatically for the electrical connection of the component. However, this solution is tedious and expensive. And, the smaller the component, the more difficult it becomes to carry out these soldering operations.

[0003] Furthermore, for greater mobility, the module or button may be portable, so as to facilitate the use of the module or button, for example lighting, by a user. The module or button may in particular be intended to equip a support such as a textile support, a fabric, a clothing accessory, a garment. The attachment to the support must be done simply and quickly.

[0004] Furthermore, in the case of a power electronics module or button, that is to say comprising at least one power electronic component, in operation, the temperature of such a module or button may rise, which risks damaging some of the power electronic components.

[0005] It is therefore necessary to provide thermal regulation, especially when the module or button is fitted to a support, such as a textile support, worn by the user.

[0006] The invention therefore aims to at least partially resolve one or more of the aforementioned drawbacks. Summary of the invention

[0007] To this end, the invention relates to an electric button, in particular for equipping a support such as an item of clothing, said button comprising: - at least one electrical and / or electronic component, said component being capable of releasing heat during operation, - a base comprising at least one housing in which said component is mounted and at least two grooves configured to receive a cable respective electrical device configured to be connected to said component, the two grooves being arranged on either side of the housing in which said component is mounted, and - at least two electrical crimping contacts configured to be electrically connected to said component and configured to be crimped onto a respective electrical cable.

[0008] The electric button further comprises a heat sink arranged in thermal contact at least with said component and / or the base.

[0009] The heat sink may have a main body.

[0010] At least one first branch in thermal contact with said component may extend from the main body.

[0011] At least two second branches arranged on either side of the two grooves, and in thermal contact with the base, can extend from the main body.

[0012] The electric button may further comprise one or more of the following features described below, taken separately or in combination.

[0013] The second branches can cover all or a majority of the surface of the base on either side of the two grooves.

[0014] The first branch can be central between the two second branches.

[0015] The heat sink may have an “m” or “w” shape.

[0016] The heat sink may have a horseshoe shape with a branch central.

[0017] The heat sink may have an at least partially rounded shape.

[0018] The main body of the heat sink may be arranged in thermal contact with the base.

[0019] The housing defined by the base can be through.

[0020] The heat sink may come into direct or indirect contact with said component.

[0021] The heat sink may be made of metallic material, preferably copper.

[0022] The electric button may comprise at least one thermal interface, electrically insulating and thermally conductive.

[0023] The thermal interface may be arranged between the heat sink and said component.

[0024] The thermal interface may be arranged between the heat sink and the base.

[0025] The thermal interface is chosen from a thermal paste, a thermal cream, a weld.

[0026] The electric button may comprise at least one heat exchange element arranged to carry out a heat exchange with the heat sink by means of of a heat transfer fluid. It can be a dielectric fluid.

[0027] The heat exchange element is for example configured for cooling the heat sink.

[0028] The heat exchange element may comprise a reservoir of heat transfer fluid, such as a dielectric fluid.

[0029] The heat sink may be at least partially submerged in the reservoir.

[0030] The electric button may be at least partially submerged in the reservoir.

[0031] The electric button comprises, for example, an assembly washer fixed to one face of the base, opposite the heat sink.

[0032] The electric button may comprise at least one heat dissipation element.

[0033] The at least one heat dissipation element may be provided on the base, in particular on the face of the base fixed to the assembly washer.

[0034] Alternatively or additionally, the at least one heat dissipation element may be provided on the assembly washer.

[0035] The at least one heat dissipation element can be produced by at least one through ventilation orifice provided on the base.

[0036] The at least one heat dissipation element may be produced by at least one through ventilation orifice provided on the assembly washer. This ventilation orifice may be opposite a complementary ventilation orifice provided on the base.

[0037] The assembly washer may be sized and / or shaped so as to leave free the at least one ventilation orifice provided on the base. The assembly washer may have a rounded shape with a smaller diameter than the rounded base.

[0038] According to yet another alternative, the assembly washer can be made of heat-dissipating material.

[0039] One or more connecting arms, made of a thermally conductive material, may extend between the heat sink and the assembly washer, passing through the at least one ventilation orifice provided on the base.

[0040] Said component is for example a light-emitting diode. The electric button may be a lighting button.

[0041] Each electrical crimping contact may comprise a predefined number of crimping pins.

[0042] According to an exemplary embodiment, the crimping pins can extend in a direction of light emission by the light-emitting diode, before crimping onto the respective electrical cable.

[0043] According to another exemplary embodiment, the crimping pins can extend in a direction opposite to a direction of light emission by the electroluminescent diode. emerging, before crimping onto the respective electrical cable.

[0044] The electric button may comprise at least two components. The button may for example be mounted on a support, such as a textile support, a garment, so that the two components are arranged on either side of the support.

[0045] Alternatively or additionally, said component(s) may be intended to be connected to at least three electrical cables.

[0046] The invention also relates to a support comprising at least one electrical button as defined above. Said at least one component is electrically connected to at least two electrical cables, an electrical crimping contact being crimped onto each electrical cable.

[0047] The support is in particular a textile support.

[0048] It may be a fabric.

[0049] It could be a piece of clothing.

[0050] It may be a clothing item or accessory.

[0051] The invention can also be applied to another support such as for example a wall, a canvas, a rigid or flexible box. Brief description of the drawings

[0052] Other advantages and characteristics of the invention will appear more clearly on reading the following description given by way of illustrative and non-limiting example, and the appended drawings among which:

[0053] [Fig.lA] is a schematic view from below of an electric button according to one embodiment of the invention.

[0054] [Fig.lB] is a schematic top view of the electric button of [Fig.lA].

[0055] [Fig.2] is a schematic side view of the electric button of figures 1A, 1B mounted on a support.

[0056] [Fig.3] is an exploded view of the electric button of Figures 1A to 2.

[0057] [Fig.4] shows a perspective view of a light-emitting diode connected to two electrical crimp contacts.

[0058] [Fig.5] shows a perspective view of a two-component electric button according to another embodiment.

[0059] [Fig.6] shows a perspective view of an electric button connected to three cables according to yet another embodiment.

[0060] In these figures, identical elements have the same reference numbers.

[0061] The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Simple features of different embodiments may also be combined or interchanged to provide other embodiments, without departing from the scope of the invention, as defined by the claims. Detailed description

[0062] Figures 1A and 1B show bottom and top views respectively of an electrical and / or electronic module, for example in the form of a button 1. Such a module is hereinafter referred to as an electrical button 1.

[0063] The electric button 1 is in particular intended to be mounted on another support 100 (partially shown diagrammatically [Fig.2]), for example a wall, a fabric or a canvas, a rigid or flexible housing, in particular on a textile support such as a clothing item or accessory, a garment.

[0064] With reference to figures 1A to 2, the electric button 1 has for example a rounded shape, a disc shape or a pellet shape. Other shapes are conceivable, for example square or oval without departing from the scope of the present invention.

[0065] The electric button 1 comprises a base 3. The base 3 is shaped to allow the electric button 1 to be mounted on the support 100. For this purpose, the base 3 may have lateral fixing tabs (not shown), for example for screwing or gluing the base 3 onto the support 100.

[0066] The base 3 may have a first face 3A and a second face 3B opposite each other. The first face 3A may form a front face which may be intended to be at least partially visible when the base 3 is mounted on the support 100. The second face 3B may form a rear face. When the base 3 is mounted on the support 100 such as a garment for example, this second face 3B may possibly be intended to no longer be visible from the outside of the support 100, to be at least partially hidden by the support 100, for example in the case of a garment or clothing accessory worn by the user.

[0067] Alternatively or in addition, the first face 3A may be fixed to an assembly washer 4, for example by ultrasonic welding so as to sandwich the support 100, or at least one membrane or wall 101 of the support 100, between this assembly washer 4 and the base 3. The assembly washer 4 may in this case have an opening 41 through which one or more elements of the electric button 1 may protrude or may be visible.

[0068] In the example illustrated, the base 3, in particular its first face 3A, has a rounded or pellet shape which gives the electric button 1 its general shape of a round button.

[0069] The base 3 is for example made of plastic, for example by injection molding.

[0070] The base 3 comprises at least one housing 5 in which at least one electrical and / or electronic component 7 of the electrical button 1 can be mounted.

[0071] With reference to [Fig. 3], the housing 5 is made by a through opening. This opening is for example of rounded shape. Other shapes are conceivable, for example the opening could be rectangular, square or other.

[0072] The base 3 may have a flared shape 31, for example conical, widening from the second face 3B towards the first face 3A. It is conceivable that the flared shape 31 is for example metallized to play the role of a reflector.

[0073] When assembling the electric button 1 on the support, the part of the first face 3A of the base 3 having the housing 5 and the flared shape 31 may project relative to this support and / or be visible, in particular by passing through a corresponding orifice of complementary shape provided on the support intended to receive the base 3 or the opening 41 of the assembly washer 4.

[0074] The assembly washer 4 can be made of a heat-dissipating material.

[0075] A single component 7 can be mounted in the housing 5 of the base 3, as illustrated in Figures 1A to 4. Of course, this is not limiting and several components 7 can be assembled to the base 3. In the example of [Fig.5], two components 7 are mounted on a common base 3. According to this example, the electric button 1 can for example be intended to be mounted on the support, such as a garment or clothing accessory, so that the two components 7 are on either side of the garment or clothing accessory.

[0076] A layer of resin 8 may cover the or each component 7.

[0077] Concerning the or each component 7, it may in particular be likely to release heat during operation. This is the case, for example, for a so-called power electronics component.

[0078] The component 7 may be optoelectronic. According to an example shown in FIGS. 1A to 4, the component 7 may be a light-emitting diode, in particular a power light-emitting diode. The electrical button 1 thus forms a lighting button. The light-emitting diode may have a light intensity range of the order of 501m to 1001m.

[0079] According to this example, the first face 3A or front face of the base 3, is in particular the face from which the light-emitting diode can emit light when such a diode is mounted in the base 3.

[0080] The base 3 may have a rear / front direction, from the second face 3B towards the first face 3A, which is substantially parallel to the emission direction of such a light-emitting diode. The flared shape 31 of the base 3 may in particular widen towards the front (or upwards), promoting the emission of a cone of light by the light-emitting diode when the latter is mounted in the base 3.

[0081] Furthermore, when the component 7 is a light-emitting diode, the resin layer, if provided, is for example transparent, and preferably curved.

[0082] In other embodiments, the component 7 may be, for example, a sensor (temperature sensor, magnetic and / or electric field sensor, light sensor / photodiode), a power supply battery, a transmitter / receiver, for example an antenna, or other. Generally, it is a component 7 of a few millimeters in size.

[0083] In particular, the component 7 is intended to be wired, that is to say it is intended to be connected to individual electrical cables 9.

[0084] For this purpose, the base 3 has at least two grooves 11 in which a respective electrical cable 9 can be received. Each electrical cable 9 is intended to be connected to the component 7. Generally, the base 3 has as many grooves 11 as there are electrical cables 9 to be connected to the component 7.

[0085] The grooves 11 may be delimited by partitions or walls 12, 12' of the base 3. In particular, the two grooves may be separated by a first central partition or a first separating wall 12' of the base 3, which may be at the center of the two other partitions or walls 12, forming second partitions or walls 12.

[0086] The electrical button 1 further comprises at least two electrical crimping contacts 13, hereinafter referred to as contacts 13. These contacts 13 are intended to be electrically connected to the component 7. Each contact 13 is further intended to be crimped onto an associated electrical cable 9, received in a corresponding groove 11 when the button 1 is assembled and wired.

[0087] The grooves 11 are advantageously provided on the second face 3B of the base 3, on the side opposite the first face 3A.

[0088] The two grooves 11 can be arranged on either side of the housing 5, such as the through opening.

[0089] Two pairs of grooves 11 can be arranged opposite each other on each side of the component 7 (as shown in [Fig.5]). This is particularly interesting for a series connection of several electric buttons 1.

[0090] According to yet another example, the component 7 may be intended to be connected to more than two, for example three, electrical cables 9 (as shown diagrammatically in [Fig.6]). The third electrical cable 9 may for example be provided for a communication protocol. In a complementary manner, the base 3 then comprises more than two grooves 11, for example three grooves 11, or two sets of three grooves 11, the two sets being opposite each other. The component 7 could also be intended to be connected to more than three, for example four, electrical cables 9, and the number of grooves 11 would be adapted accordingly. The two additional electrical cables 9 Additional resources could be provided for communication protocols.

[0091] The grooves 11 may extend along a longitudinal axis. The grooves 11 may extend at least partly in parallel, as in the illustrated example.

[0092] According to an alternative not shown, the grooves 11 can define a non-rectilinear shape, for example substantially angled or “L” shaped.

[0093] Each groove 11 may have in cross section a portion 11a shaped to receive the associated electric cable 9.

[0094] Each groove 11 may further have in cross section a bottom 11b, which may be convergent. Advantageously, such a bottom 11b serves as a crimping form when inserting the contact 13 into the groove 11, when assembling the electric button 1.

[0095] Each groove 11 may also have in cross section a channel or access passage 11c of the electrical crimping contact 7, which is opposite the bottom 11b.

[0096] This access channel 11c allows insertion of the contact 13 along an insertion axis substantially perpendicular to the axis of the groove 11, more generally, substantially perpendicular to the general plane defined by the base 3.

[0097] The base 3 may optionally comprise at least one element or portion (not shown) for locking an electric cable 9 in a groove 11.

[0098] The contacts 13 each comprise a pad 131, advantageously planar or flat, which can for example be soldered to the power supply terminals of the component 7 such as a light-emitting diode.

[0099] The contacts 13 also each comprise a crimping pin portion 132 (Figures 3 and 4). Each contact 13 comprises a predefined number of crimping pins.

[0100] Advantageously, the crimping pins extend in the direction from the rear to the front, from the second face 3B to the first face 3A, for example in the direction of light emission by the light-emitting diode forming the component 7, before crimping onto the respective electrical cable 11.

[0101] Alternatively, the crimping pins may extend in a direction opposite to the direction of light emission by the light-emitting diode forming the component 7, before crimping onto the respective electrical cable. In this case, they may extend from front to rear.

[0102] For example, according to the embodiment with two components 7 on either side of the support such as a garment or a clothing accessory, for one of the components 7 for example formed by a light-emitting diode, the crimping pins extend in the direction of light emission by the light-emitting diode, while on the other side, for the other component, the crimping pins can extend in a direction opposite to the direction of light emission by the light-emitting diode.

[0103] Referring again to Figures 1A and 3, the electric button 1 may further comprise a heat sink 15.

[0104] The heat sink 15 may also be arranged in thermal contact with the component 7.

[0105] Alternatively or additionally, the heat sink 15 may be arranged in thermal contact with the base 3, in particular the second face 3B of the base 3.

[0106] The thermal contact allows an exchange of heat between on the one hand the heat sink 15 and on the other hand the component 7 and / or the base 3.

[0107] To do this, the heat sink 15 can come into direct or indirect mechanical contact with the component 7.

[0108] The shape of the heat sink 15 is complementary to the shape of the electric button 1, having for example a shape of a pellet or a round button for example for clothing. The heat sink 15 may have a shape that is at least partly rounded in a manner complementary to the shape of the base 3.

[0109] The heat sink 15 may have at least a first part in thermal contact with the component 7 and at least a second part in contact with the base 3.

[0110] The heat sink 15 has, for example, a main body 151. This main body 151 may be at least partly rounded.

[0111] The main body 151 of the heat sink may be arranged in thermal contact with the base 3, or at least a portion of the base 3.

[0112] In addition, the heat sink 15 may have at least one first branch 152 extending from the main body 151. This first branch 151 comes into thermal contact with the component 7.

[0113] The first branch 151 may in particular be located opposite the first partition or the first separation wall 12' between the two grooves 11.

[0114] The heat sink 15 may also have at least two second branches 153 extending from the main body 151. They are arranged in thermal contact with the base 3, or at least part of the base 3.

[0115] These two second branches 153 are for example arranged, on either side of the two grooves 11, more precisely on either side of the material such as the second partition or the second wall 12 delimiting an associated groove 11.

[0116] In particular, each second branch 153 can be arranged between an associated groove 11, or more precisely a second wall 12, and a peripheral edge of the base 3.

[0117] The second branches 153 may optionally cover the entire surface of the base on either side of the two grooves 153. In the example illustrated, the second branches 153 are truncated in order to avoid sharp angles which could damage the support, such as a garment, on which the electric button 1 can be mounted.

[0118] The second branches 153 form outer branches on either side of the first branch 152 between the two. According to a particular embodiment, the first branch 152 is central between the two second branches 153.

[0119] The main body 151 may have an irregular width. This is a radial dimension relative to the rear / front axis of the electric button 1. The width may, for example, become thinner at the junction with the second branches 153. The main body 151 may have a maximum width L in a central region of the main body 151, and a minimum width L' at the junction with the second branches 153.

[0120] Similarly, the two second branches 153 may have an irregular width. This is a radial dimension relative to the rear / front axis of the electric button 1. The width may, for example, become thinner at the junction with the main body 151 and at the free end of each second branch 153. Each second branch 153 may have a maximum width L1 in a central region of each second branch 153. Each second branch 153 may have a width less than the junction with the main body 151. This is the width previously referenced L'. Each second branch 153 may also have a width L” less than the maximum width L1 of the second branch 153, at the free end of each second branch 153. The width L” at the end may also be the width L' at the junction between the second branch 153 and the main body 151.

[0121] Furthermore, the first branch 152 may have a constant width as in the illustrated example. The first branch 152 may be thinner than the second branches 153.

[0122] The heat sink 15 may in particular have an “m” or “w” shape, or even an “E”. It may in particular have a horseshoe shape with a central branch 152. This central branch 152 may be shorter than the outer branches 153.

[0123] For its thermal conduction properties, the heat sink 15 is advantageously made of a metallic material, preferably copper.

[0124] According to one option, at least one thermal interface 17 can be interposed between the heat sink 15 and the base 3 and / or the component 7.

[0125] The thermal interface 17 can be chosen from a thermal paste, a thermal cream, a solder.

[0126] This is a thermal interface 17, electrically insulating and thermally conductive. inically. This makes it possible to improve or guarantee the contact between the heat sink 15 and the component 7 and / or the base 3. In particular, this thermal interface 17 can fill parallelism or alignment defects, due to the surface condition of the material of the heat sink 15.

[0127] This thermal interface 17 can be arranged so as to cover the entire surface of the heat sink 15.

[0128] In order to improve cooling, the electric button 1 may comprise one or more additional heat dissipation elements provided on the base 3, in particular on the side of the first face 3A, and / or the assembly washer 4. These heat dissipation elements complement, in addition, the heat sink. They then allow heat dissipation from the front (on the side of the first face or front face 3A of the base 3). This heat dissipation from the front is complementary to the heat dissipation carried out from the rear, that is to say on the side of the second face or rear face 3B of the base 3, via the heat sink 15.

[0129] The heat dissipation elements may be produced for example by one or more ventilation orifices 19, which are through-holes, allowing the heat released by the component 7 to be evacuated.

[0130] When an assembly washer 4 is provided, complementary ventilation orifices 19 are advantageously provided on the one hand on the base 3 and on the other hand on the assembly washer 4, the ventilation orifices 19 on the base 3 being arranged opposite the ventilation orifices (not shown) on the assembly washer 4.

[0131] Alternatively, one or more ventilation orifices 19 may be provided on the base 3 and the assembly washer 4 may be sized and / or shaped so as to leave the ventilation orifices 19 present on the base 3 free.

[0132] Before assembling the electric button 1 on the support, the ventilation orifices 19 provided on the base 3 are not covered (or only slightly) by the assembly washer 4. The electric button 1 is therefore without an assembly washer opposite the ventilation orifices 19 of the base.

[0133] For example, the assembly washer 4 may have a smaller diameter than the base 3, or a suitable shape.

[0134] According to another embodiment, one or more connecting arms (not shown) made of a thermally conductive material, can extend between the heat sink 15 and the assembly washer 4, passing through one or more ventilation orifices 19 provided on the base 3. These are, for example, connecting arms made of a metallic material. This embodiment is particularly advantageous when the assembly washer 4 is made of a thermally conductive material, which makes it possible to further improve the heat dissipation from the front.

[0135] The connecting arm(s) may be attached by any suitable means to the heat sink 15 and to the assembly washer 4.

[0136] Furthermore, at least one heat exchange element may be arranged so as to carry out a heat exchange with the heat sink 15 by means of a heat transfer fluid, advantageously a dielectric fluid. This heat exchange element may allow cooling of the heat sink 15.

[0137] According to one option, the heat exchange element may comprise a reservoir 21 (see [Fig.2]) of heat transfer fluid, advantageously of dielectric fluid. The dissipator 15, or even the electric button 1, may be at least partly immersed in such a reservoir 21.

[0138] According to one example, the support 100 shown diagrammatically in [Fig.2], such as a fabric or garment or other clothing accessory, may comprise at least one wall or membrane 101, on which the electric button 1 may be mounted. This membrane 101 is advantageously impermeable, liquid-tight. The membrane 101 may, for example, have a water-repellent coating. When an assembly washer 4 is provided, the impermeable membrane 101 may be sandwiched between the assembly washer 4 and the base 3, in particular the first face 3A of the base 3.

[0139] This waterproof membrane 101 equipped with the electric button 1 can be received in the reservoir 21 or define at least in part such a reservoir 21, or other heat-dissipating medium.

[0140] Thus, at least the heat sink 15 is immersed in the reservoir 21 or heat sink medium. In particular, the rear part of the electric button 1, that is to say the part located on the side of the impermeable membrane 101, opposite the side of the assembly washer 4, can be immersed in this reservoir 21.

[0141] According to this example, when the component 7 is a light-emitting diode, the latter is arranged so as to emit light on the non-immersed side, on the side opposite the reservoir 21. The light-emitting diode may protrude relative to the impermeable membrane 101.

[0142] The support 100 may optionally comprise at least one second wall 102. The impermeable membrane previously described then forms a first wall 101. The electric button 1 may be mounted on the first wall 101. The two walls 101, 102 are advantageously impermeable to liquids. The two walls may define or receive between them the reservoir 21 or a heat transfer fluid circuit, such as a dielectric fluid.

[0143] Finally, a sealing layer (not shown) can cover the second face 3B of the base 3 and the dissipator 15. This sealing layer makes it possible in particular to make the electric button 1 hermetic to liquids, for example the heat transfer fluid, advantageously the dielectric fluid which can be provided in the reservoir. 21 previously described.

[0144] Thus, the electric button 1 according to one or other of the previously described variants can be mounted simply and quickly on a support, such as a fabric or a garment, and the heat sink 15 ensures evacuation of heat which would be released by the component(s) 7, in operation, so as to avoid overheating or the components 7 being damaged. In addition, the ventilation orifice(s) 19 and / or the heat exchange element make it possible to improve the heat dissipation and cooling function.

Claims

Claims

1. Electric button (1), in particular for equipping a garment (100), said button (1) comprising: - at least one electrical and / or electronic component (7), said component (7) being capable of releasing heat in operation, - a base (3) comprising at least one housing (5) in which said component (7) is mounted and at least two grooves (11) configured to receive a respective electrical cable (9) configured to be connected to said component (7), the two grooves (11) being arranged on either side of the housing (5) in which said component (7) is mounted, and - at least two electrical crimping contacts (13) configured to be electrically connected to said component (7) and configured to be crimped onto a respective electrical cable (9), - characterized in that the electric button (1) further comprises a heat sink (15) arranged in thermal contact at least with said component (7) and the base (3),such that the heat sink (15) has a main body (151) from which extend at least one first branch (152) in thermal contact with said component (7) and at least two second branches (153) arranged, on either side of the two grooves (11), and in thermal contact with the base (3).,

2. Electric button (1) according to the preceding claim, in which the first branch (152) is central between the two second branches (153), so that the heat sink (15) has an “m” or “w” shape.

3. Electric button (1) according to one of the preceding claims, in which the heat sink (15) has an at least partly rounded shape.

4. Electric button (1) according to one of the preceding claims, in which the heat sink (15) is made of metallic material, preferably copper.

5. Electric button (1) according to one of the preceding claims, comprising at least one thermal interface (17), electrically insulating and thermally conductive, arranged between the heat sink (15) and said component (7), and between the heat sink (15) and the base (3).

6. Electric button (1) according to one of the preceding claims, comprising at least one heat exchange element arranged to carry out a heat exchange with the heat sink (15) by means of a heat transfer fluid, such as a dielectric fluid.

7. Electric button (1) according to the preceding claim, in which the heat exchange element comprises a reservoir (21) of dielectric fluid, in which the heat sink (15) is at least partly immersed.

8. Electric button (1) according to one of the preceding claims, comprising at least one through ventilation orifice (19) provided on the base (3) and / or an assembly washer (4) fixed on a face (3A) of the base (3) opposite the heat sink (15).

9. Electric button (1) according to one of the preceding claims, wherein said component (7) is a light-emitting diode, so as to form a lighting button (1).

10. Garment (100) characterized in that it comprises at least one electric button (1) according to one of the preceding claims, of which said at least one component (7) is electrically connected to at least two electric cables (9), an electric crimping contact (13) being crimped onto each electric cable (9).

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