A chandelier with good heat dissipation

Abstract

The present invention discloses a chandelier with good heat dissipation, comprising a lamp holder, a heat dissipation unit, a power supply arranged at the top of the lamp holder, a light-emitting unit arranged at the bottom of the lamp holder and electrically connected to the power supply, and a lampshade arranged at the periphery of the lamp holder; the heat dissipation unit comprises a heat-conducting shell arranged at the top of the lamp holder, a first cavity for accommodating the power supply is formed between the heat-conducting shell and the lamp holder, a second cavity is arranged in the heat-conducting shell, the second cavity is provided with an evaporation unit in contact with the top of the power supply, a heat dissipation component arranged around the periphery of the evaporation unit and in contact with the top of the evaporation unit, and a power unit for driving the heat dissipation component to intermittently reciprocate; the present invention absorbs the heat generated by the power supply by arranging the evaporation unit, and drives the heat dissipation component to intermittently reciprocate by the power unit, thereby timely conducting away the heat absorbed by the evaporation unit, and having better heat dissipation performance, ensuring that the power supply and the light-emitting unit operate within a reliable temperature range, and having the characteristics of higher structural reliability and small structural volume.

Description

Technical Field

[0001] The invention relates to the technical field of lighting, and in particular to a chandelier with good heat dissipation. Background Art

[0002] Due to its flexible structure, movable LED chandeliers are often used in scenarios where wiring cannot be laid out in time or wiring is impossible to achieve lighting needs. However, due to its built-in power supply, the built-in power supply will generate a lot of heat during long-term continuous use, and the light effect of LED chandeliers is greatly affected by temperature. If the rated working temperature of the lamp is exceeded, it will cause significant light decay or even burn out.

[0003] In the existing heat dissipation method, a fixed fin heat sink is usually used, but the heat dissipation effect of this type of heat sink is limited. In order to increase the heat dissipation area, the volume of the heat sink needs to be increased, which will result in a larger volume of the lamp. Summary of the invention

[0004] The object of the present invention is to overcome the above-mentioned disadvantages and provide a chandelier with good heat dissipation.

[0005] To achieve the above object, the specific scheme of the present invention is as follows:

[0006] A chandelier with good heat dissipation performance, comprising a lamp holder, a power supply arranged at the top of the lamp holder, a light emitting unit arranged at the bottom of the lamp holder and electrically connected to the power supply, and a lampshade arranged at the periphery of the lamp holder;

[0007] The chandelier also includes a heat dissipation unit, which includes a heat-conducting shell arranged on the top of the lamp holder, a first cavity for accommodating a power supply is formed between the heat-conducting shell and the lamp holder, a second cavity is arranged in the heat-conducting shell, the second cavity is provided with an evaporation unit in contact with the top of the power supply, a heat dissipation component arranged around the periphery of the evaporation unit and in contact with the top of the evaporation unit, and a power unit for driving the heat dissipation component to swing back and forth periodically and intermittently.

[0008] Optionally, the heat dissipation assembly includes a connecting bracket connected to the power unit, a connecting ring arranged on the heat-conducting shell, and a plurality of heat dissipation fins evenly distributed circumferentially between the connecting bracket and the connecting ring. The top of the heat dissipation fin is movably hinged to the connecting bracket, and the bottom of the heat dissipation fin is rotatably connected to the connecting ring. The heat dissipation fin is provided with a heat dissipation branch extending inwardly, and the heat dissipation branch abuts against the top of the evaporation unit to conduct the heat on the evaporation unit to the heat dissipation fins.

[0009] Optionally, the heat dissipation fins are provided with a plurality of ventilation holes penetrating the heat dissipation fins at intervals along the height direction thereof.

[0010] Optionally, a plurality of corrugated protrusions having a convex U-shaped cross-section are provided at intervals along the height direction of the two outer side walls of the heat dissipation fins.

[0011] Optionally, the evaporation unit includes an evaporation shell and a cover body arranged on the top of the evaporation shell, an evaporation chamber for storing condensate is formed between the cover body and the evaporation shell, and a liquid absorbent core is provided on the cavity wall of the evaporation chamber. The liquid absorbent core generates capillary tension on the condensate and can absorb the condensate.

[0012] Optionally, the power unit includes a first power bracket, a second power bracket arranged on the first power bracket, a power motor arranged on the second power bracket, and a first gear, a second gear and a third gear rotatably arranged on the first power bracket, the first gear is connected to the heat dissipation assembly, the second gear is connected to the power motor, the second gear is provided with a first shift shaft, the third gear is meshed with the second gear, and the third gear is provided with a second shift shaft, and the first shift shaft and the second shift shaft are respectively meshed with the first gear, so that the first gear rotates reciprocatingly intermittently.

[0013] Optionally, the power supply is semi-rigidly connected to the lamp holder through multiple expansion joints evenly distributed along the circumference. The expansion joint is made of a material with elasticity and high temperature resistance. When the power supply temperature exceeds the preset temperature of the expansion joint, the expansion joint absorbs heat and deforms and expands, forming a spatial gap between the power supply and the lamp holder.

[0014] Optionally, a hook is provided on the top of the heat-conducting housing to facilitate the installation of the chandelier.

[0015] Optionally, a plurality of heat dissipation through holes are arranged on the peripheral wall of the heat-conducting housing.

[0016] Optionally, the lampshade includes a plurality of first heat dissipation plates and second heat dissipation plates uniformly distributed along the circumferential direction, the second heat dissipation plates are located inside the first heat dissipation plates, and the first heat dissipation plates and the second heat dissipation plates are both hinged to the lamp holder;

[0017] The lamp holder is also provided with a heat conducting plate, the top of the heat conducting plate abuts against the bottom of the power supply, a first memory spring is connected between the heat conducting plate and the first heat dissipation plate, the heating unit is sleeved with a heat conducting ring, and a second memory spring is connected between the heat conducting ring and the second heat dissipation plate.

[0018] The beneficial effects of the present invention are as follows: the present invention absorbs the heat generated by the power supply by arranging an evaporation unit, and drives the heat dissipation component to swing back and forth intermittently through the power unit, so as to timely conduct away the heat absorbed by the evaporation unit, thereby improving the heat dissipation performance, ensuring that the power supply and the light-emitting unit operate within a reliable temperature range, having higher structural reliability and a small structural volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional schematic diagram of the present invention;

[0020] Figure 2 is another cross-sectional schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the present invention;

[0022] Figure 4 is an exploded schematic diagram of the heat dissipation unit of the present invention;

[0023] Figure 5 is a cross-sectional schematic diagram of the heat dissipation unit of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the heat dissipation fin of the present invention;

[0025] Figure 7 is an exploded schematic diagram of the power unit of the present invention;

[0026] Description of reference numerals: 1, lamp holder; 2, power supply; 21, expansion joint; 3, light-emitting unit; 31, first lamp body; 32, second lamp body; 41, first heat sink; 42, second heat sink; 51, heat-conducting housing; 511, hook; 512, heat dissipation through hole; 52, evaporation unit; 521, evaporation housing; 522, cover; 523, liquid absorption core; 53, heat dissipation assembly; 531, connecting bracket; 532, connecting ring; 533 , heat sink fins; 5331, heat sink branch; 5332, ventilation holes; 5333, corrugated protrusions; 54, power unit; 541, first power bracket; 542, second power bracket; 543, power motor; 544, first gear; 545, second gear; 546, third gear; 547, first shift shaft; 548, second shift shaft; 6, heat conduction plate; 7, first memory spring; 8, heat conduction ring; 9, second memory spring. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation scope of the present invention is not limited thereto.

[0028] like Figures 1 to 7 As shown, a chandelier with good heat dissipation performance described in this embodiment includes a lamp holder 1, a power supply 2 arranged at the top of the lamp holder 1, a light-emitting unit 3 arranged at the bottom of the lamp holder 1 and electrically connected to the power supply 2, and a lampshade arranged at the periphery of the lamp holder 1 to shield and protect the light-emitting unit 3;

[0029] The chandelier also includes a heat dissipation unit, which includes a heat-conducting shell 51 arranged on the top of the lamp holder 1, a first cavity for accommodating the power supply 2 is formed between the heat-conducting shell 51 and the lamp holder 1, a second cavity is arranged in the heat-conducting shell 51, and the second cavity is provided with an evaporation unit 52 in contact with the top of the power supply 2, a heat dissipation component 53 arranged around the periphery of the evaporation unit 52 and in contact with the top of the evaporation unit 52, and a power unit 54 for driving the heat dissipation component 53 to periodically and intermittently reciprocate.

[0030] During actual use, the power supply 2 supplies power to the light-emitting unit 3, which emits light to provide lighting. With the continuous use of the power supply 2 and the light-emitting unit 3, the power supply 2 generates a large amount of heat which is transferred to the evaporation unit 52. The heat absorbed by the evaporation unit 52 is conducted to the heat dissipation component 53. At the same time, the power unit 54 drives the heat dissipation component 53 to swing back and forth periodically to increase the heat exchange area covered by the heat dissipation component 53, thereby timely conducting the heat from the top of the evaporation unit 52. At the same time, during the swinging process, the heat dissipation component 53 can cause turbulence to the air around the evaporation unit 52, thereby enhancing air circulation and further improving the heat dissipation performance to ensure the continuous heat absorption performance of the evaporation unit 52.

[0031] In this embodiment, an evaporation unit 52 is provided to absorb the heat generated by the power source 2, and the power unit 54 drives the heat dissipation component 53 to swing back and forth intermittently, so as to timely conduct away the heat absorbed by the evaporation unit 52, thereby improving the heat dissipation performance, ensuring that the power source 2 and the light-emitting unit 3 operate within a reliable temperature range, and having higher structural reliability and a small structural volume.

[0032] like Figures 1 to 5 As shown, the chandelier described in this embodiment, in some embodiments, the heat dissipation assembly 53 includes a connecting bracket 531 connected to the power unit 54, a connecting ring 532 arranged on the heat-conducting shell 51 and a plurality of heat dissipation fins 533 uniformly distributed along the circumferential direction between the connecting bracket 531 and the connecting ring 532, the top of the heat dissipation fin 533 is movably hinged to the connecting bracket 531, the bottom of the heat dissipation fin 533 is rotatably connected to the connecting ring 532, the heat dissipation fin 533 is provided with a heat dissipation branch 5331 extending inwardly, the heat dissipation branch 5331 abuts against the top of the evaporation unit 52 to conduct the heat on the evaporation unit 52 to the heat dissipation fin 533.

[0033] During actual use, the power unit 54 synchronously drives each heat dissipation fin 533 to swing back and forth intermittently through the connecting bracket 531, and the heat dissipation branch 5331 transfers the heat absorbed by the evaporation unit 52 to the heat dissipation fin 533 in time, and the heat is dissipated in time through the heat dissipation fin 533; compared with the fixed method of the heat dissipation fin 533, the heat dissipation fin 533 is set to swing, so that the contact area between the heat dissipation branch 5331 and the evaporation unit 52 can be larger, thereby achieving the effect of increasing the heat exchange area covered by the heat dissipation fin 533, so that the heat dissipation fin 533 can continuously conduct heat to the evaporation unit 52; when the heat dissipation fin 533 stops swinging, the heat at the position where the heat dissipation branch 5331 stays can be conducted for a longer time, avoiding a large amount of heat accumulation, and improving the heat dissipation performance.

[0034] like Figure 6As shown, in the chandelier described in this embodiment, in some embodiments, the heat dissipation fin 533 is provided with a plurality of ventilation holes 5332 that penetrate the heat dissipation fin 533 at intervals along its height direction. In this embodiment, by providing the ventilation holes 5332 on the heat dissipation fin 533, the air convection in the space of the heat-conducting housing 51 can be enhanced, and the heat can be dissipated to the outside in time. The number of ventilation holes 5332 can be freely set according to actual design needs.

[0035] like Figure 6 As shown, in some embodiments of the chandelier described in this embodiment, the two outer side walls of the heat dissipation fin 533 are provided with a plurality of corrugated protrusions 5333 with a convex cross-section structure at intervals along the height direction. In this embodiment, by providing the corrugated protrusions 5333 on the heat dissipation fin 533, the heat dissipation area of ​​the heat dissipation fin 533 can be increased, thereby absorbing more heat. The number of the corrugated protrusions 5333 can be freely set according to actual design needs.

[0036] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in the chandelier described in this embodiment, in some embodiments, the evaporation unit 52 includes an evaporation shell 521 and a cover 522 disposed on the top of the evaporation shell 521, an evaporation chamber for storing condensed liquid is formed between the cover 522 and the evaporation shell 521, and a liquid wick 523 is disposed on the cavity wall of the evaporation chamber, and the liquid wick 523 generates capillary tension on the condensed liquid, and can absorb the condensed liquid. Specifically, the condensed liquid is made of a low boiling point material, and the liquid level is lower than the height of the evaporation chamber.

[0037] In actual use, the heat generated by the power supply 2 is transferred to the evaporation shell 521, so that the condensate in the evaporation chamber is heated, and the condensate is heated and evaporated into steam to absorb heat energy. The hot steam moves along the evaporation chamber to the top with a lower temperature, and the steam condenses and flows back, releasing heat energy, and the condensate flows back to the bottom with a higher temperature. In this embodiment, the wick 523 is set to generate capillary tension on the condensate, so that the condensate in the evaporation chamber is adsorbed. The condensate reaches equilibrium under the action of gravity and capillary tension, and maintains a certain height in the wick 523, so that the condensate is easily heated to form steam. In the process of phase change of the condensate, the heat generated by the power supply 2 can be conducted away in time, which effectively helps to dissipate heat, and the phase change process of the condensate can be cyclic, forming a continuous heat dissipation effect, greatly improving the heat dissipation performance.

[0038] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7As shown, the chandelier described in this embodiment, in some embodiments, the power unit 54 includes a first power bracket 541, a second power bracket 542 arranged on the first power bracket 541, a power motor 543 arranged on the second power bracket 542, and a first gear 544, a second gear 545 and a third gear 546 rotatably arranged on the first power bracket 541, the first gear 544 is connected to the heat dissipation assembly 53, the second gear 545 is connected to the power motor 543, the second gear 545 is provided with a first shift shaft 547, the third gear 546 is meshed with the second gear 545, and the third gear 546 is provided with a second shift shaft 548, which are respectively meshed with the first gear 544 through the first shift shaft 547 and the second shift shaft 548, so that the first gear 544 intermittently reciprocates.

[0039] In actual use, the power motor 543 drives the second gear 545 to rotate clockwise, and the second gear 545 drives the third gear 546 to rotate counterclockwise. When the second gear 545 drives the first shift shaft 547 to rotate until it meshes with the first gear 544, the first shift shaft 547 drives the first gear 544 to rotate counterclockwise, and the first gear 544 drives each heat sink fin 533 to swing counterclockwise through the connecting bracket 531, and the second shift shaft 548 is in a non-meshing state with the first gear 544 until the first shift shaft 547 is disengaged from the first gear 544, and the third gear 546 drives the second shift shaft 548 to rotate until it meshes with the first gear 544. The gear 544 is meshed, and at this time, the second shift shaft 548 drives the first gear 544 to rotate clockwise, and the first gear 544 drives each heat sink fin 533 to swing clockwise through the connecting bracket 531, until the second shift shaft 548 is disengaged from the first gear 544, and at this time, the first shift shaft 547 and the second shift shaft 548 are all in a non-meshing state with the first gear 544, and the first gear 544 does not rotate, that is, the heat sink fin 533 does not swing, so that the heat at the position where the heat conduction branch stays is conducted for a longer time, thus completing a driving cycle, and entering the next driving cycle with the driving of the power motor 543. In this way, the heat sink fin 533 is made to swing back and forth periodically and intermittently, which can cause turbulence to the surrounding air and thus enhance air circulation, so that the heat can be quickly dissipated to the outside.

[0040] like Figure 2As shown, in some embodiments of the chandelier described in this embodiment, the power supply 2 is semi-rigidly connected to the lamp holder 1 through a plurality of expansion joints 21 uniformly distributed along the circumference, and the expansion joint 21 is made of a material with elasticity and high temperature resistance. Preferably, the expansion joint 21 is made of carbon fiber material; when the temperature of the power supply 2 exceeds the preset temperature of the expansion joint 21, the expansion joint 21 absorbs heat to produce deformation and expansion, so that a space gap is formed between the power supply 2 and the lamp holder 1. In this embodiment, by setting the expansion joint 21, a semi-rigid connection is formed between the power supply 2 and the lamp holder 1, so that when the heat generated by the power supply 2 makes the temperature of the expansion joint 2 exceed its preset temperature, that is, when the operating temperature of the power supply 2 is high, the expansion joint 21 absorbs heat to produce deformation and expansion, so that a space gap is formed between the power supply 2 and the lamp holder 1, thereby accelerating the heat dissipation efficiency; at the same time, when the temperature changes, the expansion joint 21 can withstand deformation and absorb the stress caused by thermal expansion and contraction, so that the structure is not easily deformed.

[0041] like Figures 1 to 5 As shown, in some embodiments of the chandelier described in this embodiment, a hook 511 is provided on the top of the heat-conducting housing 51 to facilitate the installation of the chandelier. In this embodiment, the hook 511 is provided to hang the chandelier on an external installation position, which is more convenient to use.

[0042] like Figure 3 and Figure 4 As shown, in some embodiments of the chandelier described in this embodiment, a plurality of heat dissipation holes 512 are provided on the peripheral wall of the heat-conducting shell 51. In this embodiment, the heat dissipation holes 512 are provided on the heat-conducting shell 51 so that the heat in the heat dissipation shell can be dissipated to the outside in time.

[0043] like Figures 1 to 3 As shown, in some embodiments of the chandelier described in this embodiment, the lampshade includes a plurality of first heat dissipation plates 41 and second heat dissipation plates 42 uniformly distributed along the circumferential direction, the second heat dissipation plates 42 are located inside the first heat dissipation plates 41, and the first heat dissipation plates 41 and the second heat dissipation plates 42 are both hinged to the lamp holder 1;

[0044] The lamp holder 1 is also provided with a heat conducting plate 6, the top of the heat conducting plate 6 is in contact with the bottom of the power source 2, a first memory spring 7 is connected between the heat conducting plate 6 and the first heat sink 41, a heat conducting ring 8 is provided on the heating unit, and a second memory spring 9 is connected between the heat conducting ring 8 and the second heat sink 42. The first memory spring 7 and the second memory spring 9 are both made of memory metal materials, and can achieve shape memory effect under temperature changes.

[0045] In actual use, at low temperature or normal temperature, the first memory spring 7 and the second memory spring 9 are bent and deformed, and the first heat sink 41 and the second heat sink 42 are gathered together toward the center under the action of gravity, thereby protecting the light-emitting unit 3 and having a dust-proof effect; when the temperature rises, the heat generated by the light-emitting unit 3 is conducted to the first memory spring 7 through the heat-conducting plate 6, and is conducted to the second memory spring 9 through the heat-conducting ring 8, and the first memory spring 7 and the second memory spring 9 return to their original shape. The deformation force of the first memory spring 7 and the second memory spring 9 drives the first heat sink 41 and the second heat sink 42 to swing outward with the hinge point as the fulcrum, thereby expanding outward, increasing the enclosed space of the lampshade, enhancing air flow, and more effectively dissipating heat for the light-emitting unit 3. Specifically, the lamp holder 1 is provided with a first hinge position corresponding to each first heat sink 41, and a first connecting arm extending vertically downward is provided corresponding to each second heat sink 42, and a second hinge position is provided on the first connecting arm. The heat conducting plate 6 is provided with a second connecting arm extending horizontally corresponding to each first hinge position, and the heat conducting ring 8 is provided with a third connecting arm extending horizontally corresponding to each second hinge position. A first hinge portion is provided on the inner side of the top of each first heat sink 41, and the first hinge portion is hinged on the corresponding first hinge position, and a first memory spring 7 is connected between the first hinge portion and the corresponding second connecting arm. A second hinge portion is provided on the inner side of the top of each second heat sink 42, and the second hinge portion is hinged on the corresponding second hinge position, and a second memory spring 9 is connected between the second hinge portion and the corresponding third connecting arm.

[0046] like Figure 1 and Figure 2 As shown, specifically, in this embodiment, the light-emitting unit 3 includes a first lamp body 31 and a plurality of second lamp bodies 32 arranged around the first lamp body 31, the heat-conducting ring 8 is fixedly sleeved on the outer wall of the first lamp body 31, and the second lamp body 32 is a U-shaped structure, so as to provide a better lighting effect.

[0047] The above is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the protection scope of the patent application of the present invention.

Claims

1. A chandelier with good heat dissipation, characterized in that: It includes a lamp holder, a power source arranged at the top of the lamp holder, a light emitting unit arranged at the bottom of the lamp holder and electrically connected to the power source, and a lampshade arranged at the periphery of the lamp holder; The chandelier also includes a heat dissipation unit, which includes a heat-conducting shell disposed on the top of the lamp holder, a first cavity for accommodating a power source is formed between the heat-conducting shell and the lamp holder, a second cavity is disposed in the heat-conducting shell, and the second cavity is provided with an evaporation unit in contact with the top of the power source, a heat dissipation component disposed around the periphery of the evaporation unit and in contact with the top of the evaporation unit, and a power unit for driving the heat dissipation component to periodically and intermittently reciprocate; The heat dissipation assembly includes a connection bracket connected to the power unit, a connection ring provided on the heat-conducting housing, and a plurality of heat dissipation fins uniformly distributed between the connection bracket and the connection ring along the circumferential direction, the top of the heat dissipation fin is movably hinged with the connection bracket, the bottom of the heat dissipation fin is rotatably connected with the connection ring, the heat dissipation fin is provided with a heat dissipation branch extending inwardly, the heat dissipation branch abuts against the top of the evaporation unit to conduct the heat on the evaporation unit to the heat dissipation fin; The lampshade comprises a plurality of first heat dissipation plates and second heat dissipation plates uniformly distributed along the circumferential direction, the second heat dissipation plates are located inside the first heat dissipation plates, and the first heat dissipation plates and the second heat dissipation plates are both hinged to the lamp holder; The lamp holder is also provided with a heat conducting plate, the top of the heat conducting plate is in contact with the bottom of the power supply, a first memory spring is connected between the heat conducting plate and the first heat dissipation plate, a heat conducting ring is provided on the heating unit, and a second memory spring is connected between the heat conducting ring and the second heat dissipation plate; the first memory spring and the second memory spring are both made of memory metal materials, and can achieve shape memory effect under temperature changes; The power unit includes a first power bracket, a second power bracket arranged on the first power bracket, a power motor arranged on the second power bracket, and a first gear, a second gear and a third gear rotatably arranged on the first power bracket, the first gear is connected to the heat dissipation component, the second gear is connected to the power motor, the second gear is provided with a first shifting shaft, the third gear is meshed with the second gear, and the third gear is provided with a second shifting shaft, and the first shifting shaft and the second shifting shaft are respectively meshed with the first gear, so that the first gear intermittently reciprocates; The power supply is semi-rigidly connected to the lamp holder through multiple expansion joints evenly distributed along the circumference. The expansion joint is made of elastic and high-temperature resistant material. When the power supply temperature exceeds the preset temperature of the expansion joint, the expansion joint absorbs heat and deforms and expands, forming a space gap between the power supply and the lamp holder.

2. The chandelier according to claim 1, characterized in that: The heat dissipation fins are provided with a plurality of ventilation holes penetrating the heat dissipation fins at intervals along the height direction thereof.

3. The chandelier according to claim 1, characterized in that: The two outer side walls of the heat dissipation fins are provided with a plurality of corrugated protrusions with a convex U-shaped cross section at intervals along the height direction thereof.

4. The chandelier according to claim 1, characterized in that: The evaporation unit includes an evaporation shell and a cover body arranged on the top of the evaporation shell. An evaporation chamber for storing condensate is formed between the cover body and the evaporation shell. The cavity wall of the evaporation chamber is provided with a liquid absorption core. The liquid absorption core generates capillary tension on the condensate and can absorb the condensate.

5. The chandelier according to claim 1, characterized in that: A hook is provided on the top of the heat-conducting shell to facilitate the installation of the chandelier.

6. The chandelier according to claim 1, characterized in that: A plurality of heat dissipation through holes are arranged on the peripheral wall of the heat-conducting housing.

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