CN219499558U - Radiation lamp based on cold-hot convection heat radiation - Google Patents
Radiation lamp based on cold-hot convection heat radiation Download PDFInfo
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- CN219499558U CN219499558U CN202320244297.0U CN202320244297U CN219499558U CN 219499558 U CN219499558 U CN 219499558U CN 202320244297 U CN202320244297 U CN 202320244297U CN 219499558 U CN219499558 U CN 219499558U
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Abstract
The embodiment of the utility model provides a radiation lamp based on cold-hot convection heat radiation, which comprises: a light source assembly for emitting thermal radiation; the heat shield is connected with the light source assembly, covers the upper part of the light source assembly and is used for shielding heat generated by the light source assembly; the lamp shade is connected with the heat shield and covers the heat shield upper portion, the lamp shade with be formed with the circulation space between the heat shield, set up on the lamp shade with first convection hole and the second convection hole of circulation space intercommunication, the second convection hole is located the top in first convection hole, the air can follow first convection hole inflow, and follow the second convection hole outflow. The radiation lamp adopts the first convection hole and the second convection hole to generate air convection in the circulation space, so that the air continuously takes away the heat on the heat shield, the heat transfer to the lampshade is reduced, and the temperature of the lampshade is always in a safe range.
Description
Technical Field
The utility model relates to the technical field of radiant lamps, in particular to a radiant lamp based on cold and hot convection heat dissipation.
Background
The infant radiation warming table refers to a nursing warming apparatus special for newborns, premature infants, ill infants and feeble infants, and is provided with an infrared radiation lamp for providing continuous warmth to the infants.
The temperature of the lamp tube of the radiation lamp can rise rapidly when the lamp tube is used, the temperature of the lamp shade can rise rapidly under the heating of the lamp tube, and the lamp shade with too high temperature has higher risk of scalding, so that the safety of users is threatened greatly. In the prior art, the heat insulation board is only arranged between the lamp tube and the lamp shade to prevent heat generated by the lamp tube from being transferred to the lamp shade, but after the lamp shade is used for a long time, the temperature of the lamp shade still exceeds the safety range, so that the heat dissipation structure of the radiation lamp is required to be improved.
Disclosure of Invention
The embodiment of the utility model provides a radiation lamp based on cold and hot convection heat dissipation, which is used for solving the problem that the temperature of a lamp shade of the existing radiation lamp exceeds a safety range after long-time use.
In an embodiment of the present utility model, the radiation lamp based on cold-hot convective heat dissipation includes:
a light source assembly for emitting thermal radiation;
the heat shield is connected with the light source assembly, covers the upper part of the light source assembly and is used for shielding heat generated by the light source assembly;
the lamp shade is connected with the heat shield and covers the heat shield upper portion, the lamp shade with be formed with the circulation space between the heat shield, set up on the lamp shade with first convection hole and the second convection hole of circulation space intercommunication, the second convection hole is located the top in first convection hole, the air can follow first convection hole inflow, and follow the second convection hole outflow.
As a further alternative scheme of the radiant lamp based on cold and hot convective heat dissipation, the lampshade comprises a cover body and a bottom plate, wherein the cover body is formed by extending and folding the outer periphery of the bottom plate upwards, and the cover body and the bottom plate are wrapped to form an accommodating space for accommodating the light source assembly and the heat shield; the bottom plate is of an annular structure with a through hole in the middle, and the through hole is used for radiating heat emitted by the light source assembly.
As a further alternative of the radiation lamp based on cold and hot convective heat dissipation, the radiation lamp based on cold and hot convective heat dissipation further includes a deflector disposed between the lamp housing and the heat shield, and separating a flow guide channel from the circulation space together with the heat shield, the flow guide channel extending from the first convection hole to the second convection hole for guiding air flowing in from the first convection hole to the second convection hole.
As a further alternative of the radiant lamp based on cold-hot convection heat dissipation, the first convection hole is formed in the bottom plate, and the second convection hole is formed in the top of the cover body.
As a further alternative of the radiant lamp based on cold-hot convective heat dissipation, a first opening of the diversion channel close to the first convection hole faces the first convection hole, so that air entering from the first convection hole can quickly flow into the diversion channel; the second opening of the diversion channel, which is close to the second convection hole, faces the side face of the cover body, so that air flowing out of the diversion channel flows out of the second convection hole after flowing to the side face of the cover body.
As a further alternative to the radiant lamp based on cold and hot convective heat dissipation, the deflector is provided as a curved plate with smooth transitions, which extends upwards from the bottom of one side of the heat shield and curves until covering the top of the heat shield.
As a further alternative of the radiant lamp based on cold and hot convective heat dissipation, two rows of the first convective holes are arranged on two opposite sides of the bottom plate, one row of the first convective holes faces the first opening, and the other row of the first convective holes is located below the second opening.
As a further alternative of the radiant lamp based on cold and hot convective heat dissipation, the radiant lamp based on cold and hot convective heat dissipation further includes a connecting piece, the connecting piece includes a middle portion, an upper connecting portion disposed at a top end of the middle portion, and a lower connecting portion disposed at a bottom end of the middle portion, the upper connecting portion extends toward a lateral direction of the cover, and the lower connecting portion includes a first section extending toward the lateral direction of the cover and a second section extending away from a lateral surface of the cover; the guide plate is fixedly connected with the upper connecting part, the bottom plate is fixedly connected with the first section, and the heat shield is fixedly connected with the second section.
As a further alternative scheme of the radiant lamp based on cold and hot convection heat dissipation, the light source assembly comprises a reflector plate and a lamp tube, the lamp tube is connected with the reflector plate, the lamp tube is used for emitting heat radiation, the reflector plate is used for reflecting the heat radiation emitted by the lamp tube outwards, and the heat shield is connected with the reflector plate and is covered on the upper portion of the reflector plate.
As a further alternative of the radiant lamp based on cold and hot convective heat dissipation, the reflector plate and the heat shield are mutually spaced and connected in a sealing manner, so that a closed heat insulation space is formed.
The implementation of the embodiment of the utility model has the following beneficial effects:
this radiation lamp based on cold and hot convection heat dissipation adopts the preliminary check of heat exchanger to block the heat that the source subassembly produced, adopts first convection hole and second convection hole to produce the air convection in the circulation space, makes the air constantly take away the heat on the heat exchanger, further reduces the heat and transmits to the lamp shade to guarantee that the temperature of lamp shade is in safe within range all the time.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a schematic exploded view of a radiation lamp according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a radiation lamp based on convective heat dissipation in accordance with an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a connector according to an embodiment of the utility model.
Description of main reference numerals:
10-a light source assembly, 11-a reflector and 12-a lamp tube;
20-a heat shield;
30-a lampshade, 31-a lampshade body, 311-a second convection hole, 32-a bottom plate and 321-a first convection hole;
40-deflector;
50-connecting piece, 51-middle part, 511-overflow hole, 52-upper connecting part, 53-lower connecting part, 531-first section, 532-second section;
60-a circulation space, 61-a diversion channel, 611-a first opening, 612-a second opening;
70-insulating space.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many other different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The embodiment of the utility model provides a radiation lamp based on cold and hot convection heat dissipation, which is used for solving the problem that the temperature of a lamp shade of the existing radiation lamp exceeds a safety range after long-time use.
In an embodiment of the present utility model, referring to fig. 1 to 2, the radiation lamp based on cold and hot convective heat dissipation includes a light source assembly 10, a heat shield 20 and a lamp cover 30.
Wherein the light source assembly 10 is configured to emit thermal radiation that can be used to provide sustained warmth to the infant; the heat shield 20 is connected with the light source assembly 10, and is covered on the upper part of the light source assembly 10, and is used for shielding heat generated by the light source assembly 10; the lamp cover 30 is connected with the heat shield 20 and covers the upper part of the heat shield 20, a circulation space 60 is formed between the lamp cover 30 and the heat shield 20, a first convection hole 321 and a second convection hole 311 which are communicated with the circulation space 60 are formed in the lamp cover 30, the second convection hole 311 is positioned above the first convection hole 321, and air can flow in from the first convection hole 321 and flow out from the second convection hole 311.
The radiating principle of the radiating lamp based on cold-hot convection radiation is as follows: the light source assembly 10 is powered on and then emits heat radiation to generate heat, so that the heat shield 20 is heated, the air in the circulation space 60 is gradually increased in temperature due to contact with the heat shield 20, the air with higher temperature has smaller density and is gradually increased, the air flows out of the circulation space 60 from the second convection holes 311, the air pressure in the circulation space 60 is reduced, the external air flows in through the first convection holes 321, air convection is formed, and the heat on the heat shield 20 is continuously taken away, so that the temperature of the lampshade 30 is always in a safe range.
The radiation lamp based on cold and hot convection heat radiation adopts the heat shield 20 to preliminarily block the heat generated by the light source component 10, adopts the first convection hole 321 and the second convection hole 311 to generate air convection in the circulation space 60, so that the air continuously takes away the heat on the heat shield 20, the heat transfer to the lampshade 30 is further reduced, and the temperature of the lampshade 30 is always in a safe range.
In one embodiment, the lampshade 30 comprises a lampshade body 31 and a bottom plate 32, the lampshade body 31 is formed by extending and folding the outer periphery of the bottom plate 32 upwards, and the lampshade body 31 and the bottom plate 32 are wrapped to form an accommodating space for accommodating the light source assembly 10 and the heat shield 20; the bottom plate 32 has a ring-shaped structure with a through hole in the middle for heat radiation emitted through the light source assembly 10.
In this embodiment, the first convection hole 321 may be disposed on the bottom plate 32, or may be disposed on a side wall of the cover 31, and the second convection hole 311 may be disposed on a side wall of the cover 31, or on a top wall of the cover 31, so long as the positions of the two are ensured that the second convection hole 311 is higher than the first convection hole 321, so as to ensure that air convection can be smoothly performed.
For the flow process of air from the first convection hole 321 to the second convection hole 311, the air can be free to flow to form convection, or a flow guiding structure can be additionally arranged to guide air flow, so that the flow path is adjusted to improve the heat dissipation effect. A specific embodiment will be described below.
In a specific embodiment, the radiation lamp based on cold-hot convective heat dissipation further comprises a baffle 40. The baffle 40 is disposed between the lamp housing 30 and the heat shield 20, and partitions the baffle channel 61 from the circulation space 60 together with the heat shield 20, and the baffle channel 61 extends from the first convection hole 321 toward the second convection hole 311 for guiding the air flowing in from the first convection hole 321 to the second convection hole 311.
For the diversion channel 61, in order to direct the air flow from the first convection hole 321 to the second convection hole 311, there must be a first opening 611 near the first convection hole 321 and a second opening 612 near the second convection hole 311 so that the air can flow in and out. Here, the first opening 611 may be directly facing the first convection hole 321, that is, after the air flows from the first convection hole 321, the air can flow into the first opening 611 along a straight path, or the first opening 611 may be not directly facing the first convection hole 321, where a guiding structure may be disposed on a flow path of the air, such as that a distal end of the baffle 40 near the first convection hole 321 extends to the flow path of the air, and the air flows into the guide channel 61 while being blocked by the distal end of the baffle 40; similarly, the second opening 612 may or may not be directly facing the second convection hole 311.
The heat dissipation structure can be further optimized in combination with the above-described alternatives of the positions of the first and second openings 611 and 612 and the above-described alternatives of the arrangement positions of the first and second convection holes 321 and 311. Some more specific embodiments are described in detail below.
In a more specific embodiment, the first convection hole 321 is formed on the bottom plate 32, and the second convection hole 311 is formed on the top of the cover 31. In general, in order to increase the heat dissipation effect, the first and second convection holes 321 and 311 are each provided in plurality and are arranged at uniform intervals.
The first convection hole 321 is formed on the bottom plate 32, and the second convection hole 311 is formed on the top of the cover 31, so that the circulation space 60 in the lamp cover 30 can be fully utilized, and the air flow in the lamp cover is more sufficient.
In a further specific embodiment, the first opening 611 of the diversion channel 61 proximate to the first convection hole 321 is directed towards the first convection hole 321 such that air entering from the first convection hole 321 can rapidly flow into the diversion channel 61; the second opening 612 of the diversion channel 61 near the second convection hole 311 faces the side of the cover 31, so that the air flowing out of the diversion channel 61 flows out of the second convection hole 311 after flowing to the side of the cover 31.
In a still further specific embodiment, the baffle 40 is provided as a curved plate that transitions smoothly, the baffle 40 extending upward from the bottom of one side of the heat shield 20 and curving until covering the top of the heat shield 20.
In a further specific embodiment of the above embodiment, two rows of first convection holes 321 are formed on opposite sides of the bottom plate 32, one row of first convection holes 321 faces the first opening 611, and the other row of first convection holes 321 is located below the second opening 612.
Please refer to the flow path shown by the arrow representing the air flow in fig. 2, the heat dissipation process of the radiation lamp based on the heat dissipation of the cold and hot convection is: a portion of the air flows into the lamp housing 30 through the first convection hole 321 below the first opening 611, enters the diversion channel 61 through the first opening 611, and then flows out of the second opening 612; the air between the deflector 40 and the cover 31 is heated by the deflector 40, the density is reduced, and the air flows out from the second convection hole 311 at the top of the cover 31 to form a certain negative pressure, and the negative pressure can attract the air flowing out from the second opening 612 to flow between the deflector 40 and the cover 31; meanwhile, since the air flows out of the second opening 612 and the air between the side of the heat shield 20 not shielded by the baffle 40 and the cover 31 has a higher temperature and a lower density, there is a tendency that the hot air continuously flows out of the second convection hole 311 at the top of the cover 31, thereby continuously taking away heat, and the air pressure in the cover 31 is reduced due to the outflow of the hot air, so that a part of the air also flows into the cover 31 from the first convection hole 321 located below the second opening 612. It should be noted that, when the radiation lamp is used, the radiation lamp is fixed on the bracket and is usually at an oblique angle to the horizontal plane, i.e. the inclined state shown in fig. 2, the space between the top of the cover 31 and the deflector 40 also presents an upward inclined state, which can provide a larger vertical gradient for the rising of the hot air, and this larger vertical gradient can accelerate the convection speed and promote the heat dissipation effect according to the chimney effect (i.e. the phenomenon that the air enhances convection when the air rises or falls along the space with the vertical gradient). Meanwhile, the baffle 40 can prevent most of hot air from flowing to the vicinity of the highest point of the top of the cover 31 in a concentrated manner to cause local overhigh temperature, so that the safety is further improved. It can be seen that in this embodiment, the air in the cover 31 flows sufficiently to continuously remove the heat from the heat shield 20, thereby achieving a good heat dissipation effect.
For the connection mode among the heat shield 20, the lampshade 30 and the deflector 40, a more general scheme such as clamping, gluing, connecting by using a threaded fastener and the like can be adopted, and an intermediate element can be added for connection.
In one embodiment, referring to fig. 2 and 3 in combination, the radiation lamp based on heat dissipation of cold and hot convection further includes a connecting piece 50, wherein the connecting piece 50 includes a middle portion 51, an upper connecting portion 52 disposed at a top end of the middle portion 51, and a lower connecting portion 53 disposed at a bottom end of the middle portion 51, the upper connecting portion 52 extends toward a lateral direction of the housing 31, and the lower connecting portion 53 includes a first section 531 extending toward the lateral direction of the housing 31 and a second section 532 extending away from the lateral side of the housing 31; the baffle 40 is fixedly connected to the upper connection 52, the base plate 32 is fixedly connected to the first section 531, and the heat shield 20 is fixedly connected to the second section 532. The specific fixed connection mode can be carried out by adopting the existing means, such as the connection by adopting a threaded fastener.
In a specific embodiment, the middle portion 51 is provided with a plurality of flow-through holes 511, and the flow-through holes 511 are used to ensure that air in the diversion channel 61 can flow smoothly.
In one embodiment, the light source assembly 10 includes a reflector 11 and a lamp 12, the lamp 12 is connected to the reflector 11, the lamp 12 is used for emitting heat radiation, the reflector 11 is used for reflecting the heat radiation emitted by the lamp 12 outwards, and the heat shield 20 is connected to the reflector 11 and covers the upper portion of the reflector 11.
In one embodiment, the reflector 11 is spaced from and sealingly connected to the heat shield 20 to form a closed, thermally insulating space 70.
Because the air in the heat insulation space 70 is not flowing, but the heat conduction efficiency of the air is low, the heat insulation effect can be better.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. Radiation lamp based on cold and hot convection heat dissipation, characterized by comprising:
a light source assembly for emitting thermal radiation;
the heat shield is connected with the light source assembly, covers the upper part of the light source assembly and is used for shielding heat generated by the light source assembly;
the lamp shade is connected with the heat shield and covers the heat shield upper portion, the lamp shade with be formed with the circulation space between the heat shield, set up on the lamp shade with first convection hole and the second convection hole of circulation space intercommunication, the second convection hole is located the top in first convection hole, the air can follow first convection hole inflow, and follow the second convection hole outflow.
2. The radiation lamp based on cold and hot convective heat radiation according to claim 1, wherein the lamp shade comprises a shade body and a bottom plate, the shade body is formed by extending and folding the outer periphery of the bottom plate upwards, and the shade body and the bottom plate are wrapped to form an accommodating space for accommodating the light source assembly and the heat shield; the bottom plate is of an annular structure with a through hole in the middle, and the through hole is used for radiating heat emitted by the light source assembly.
3. The radiation lamp based on cold and hot convective heat dissipation according to claim 2, further comprising a deflector disposed between the lamp housing and the heat shield and separating a deflector channel from the circulation space together with the heat shield, the deflector channel extending from the first convection hole toward the second convection hole for guiding air flowing in from the first convection hole to the second convection hole.
4. The radiation lamp based on cold and hot convective heat dissipation according to claim 3, wherein the first convection hole is opened on the bottom plate, and the second convection hole is opened on the top of the cover body.
5. The radiation lamp based on cold and hot convective heat radiation according to claim 4, wherein a first opening of the diversion channel close to the first convection hole faces the first convection hole, so that air entering from the first convection hole can quickly flow into the diversion channel; the second opening of the diversion channel, which is close to the second convection hole, faces the side face of the cover body, so that air flowing out of the diversion channel flows out of the second convection hole after flowing to the side face of the cover body.
6. The radiation lamp based on cold and hot convective heat radiation according to claim 5, wherein the deflector is provided as a curved plate with smooth transition, and the deflector extends upward from the bottom of one side of the heat shield and bends until covering the top of the heat shield.
7. The radiation lamp based on cold and hot convective heat dissipation according to claim 6, wherein two rows of the first convection holes are arranged on two opposite sides of the bottom plate, one row of the first convection holes faces the first opening, and the other row of the first convection holes is located below the second opening.
8. The radiation lamp based on cold and hot convective heat radiation according to claim 3, further comprising a connecting piece, wherein the connecting piece comprises a middle part, an upper connecting part arranged at the top end of the middle part and a lower connecting part arranged at the bottom end of the middle part, the upper connecting part extends towards the side surface direction of the cover body, and the lower connecting part comprises a first section extending towards the side surface direction of the cover body and a second section extending away from the side surface of the cover body; the guide plate is fixedly connected with the upper connecting part, the bottom plate is fixedly connected with the first section, and the heat shield is fixedly connected with the second section.
9. The radiation lamp defined in any one of claims 1-8, wherein the light source assembly comprises a reflector and a lamp tube, the lamp tube is connected with the reflector, the lamp tube is used for emitting heat radiation, the reflector is used for reflecting the heat radiation emitted by the lamp tube outwards, and the heat shield is connected with the reflector and covers the upper portion of the reflector.
10. The radiation lamp based on cold and hot convective heat radiation according to claim 9, wherein the reflecting plate and the heat shield are spaced apart from each other and are hermetically connected, thereby forming a closed heat-insulating space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244297.0U CN219499558U (en) | 2023-02-08 | 2023-02-08 | Radiation lamp based on cold-hot convection heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244297.0U CN219499558U (en) | 2023-02-08 | 2023-02-08 | Radiation lamp based on cold-hot convection heat radiation |
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| Publication Number | Publication Date |
|---|---|
| CN219499558U true CN219499558U (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320244297.0U Active CN219499558U (en) | 2023-02-08 | 2023-02-08 | Radiation lamp based on cold-hot convection heat radiation |
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| Country | Link |
|---|---|
| CN (1) | CN219499558U (en) |
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- 2023-02-08 CN CN202320244297.0U patent/CN219499558U/en active Active
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