Street lamp holder

Abstract

The invention relates to the technical field of LED street lamps, in particular to a street lamp holder which comprises a lamp holder body, a connecting part is arranged on one side of the lamp holder body, an LED light source is arranged in the lamp holder body, and the LED light source is fixed to the top end of the lamp holder body; an inner cavity is formed in the connecting part, a first through hole and a second through hole are formed in the lamp holder body, and the second through hole is communicated with the inner cavity; an exhaust pipe communicated with the inner cavity is fixed on the top surface of the connecting part; a first blocking piece and a second blocking piece are arranged in the lamp holder body, in an original state, the first blocking piece blocks the first through hole, and the second blocking piece blocks the second through hole; and when the internal temperature of the lamp holder body reaches a threshold value, the first blocking piece relieves blocking of the first through hole, and the second blocking piece relieves blocking of the second through hole. The street lamp holder can quickly cool the interior of the lamp holder.

Description

Technical Field

[0001] The present invention relates to the technical field of LED street lamps, and in particular to a street lamp cap. Background Art

[0002] LED street lights are street lights that use LED light sources to emit light. They are widely used for their advantages such as energy saving and environmental protection. Existing LED lamps include lamp poles and lamp holders. The lamp holders are fixed to the top of the lamp poles. When in use, the lamp poles are fixed to the ground. Since the lamp holders are located at a higher position, they need to be made smaller to avoid being damaged by strong winds. The main way to reduce the size of the lamp holders is to reduce the internal space of the lamp holders. This method makes it easier for the light emitted by the light source to accumulate quickly, which is easy to damage the LED light source, especially for high-power LED light sources. In actual applications, since street lights are outdoor lighting devices, the lamp holders also need to be rainproof, so the heat dissipation problem cannot be solved by directly setting ventilation holes. It can be seen that, under the premise that the lamp holders have rainproof function, how to solve the heat dissipation problem inside the lamp holders has become a technical problem that people are eager to solve. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention provides a street lamp cap to solve the above technical problems.

[0004] In order to achieve the above-mentioned object of the invention, the technical solution provided by the present invention is as follows: A street lamp holder comprises a lamp holder body, a connecting portion is provided on one side of the lamp holder body, an LED light source is provided in the lamp holder body, and the LED light source is fixed to the top end of the lamp holder body; an inner cavity is provided inside the connecting portion, a first through hole and a second through hole are provided on the lamp holder body, and the second through hole is connected to the inner cavity; an exhaust pipe connected to the inner cavity is fixed to the top surface of the connecting portion; a first blocking member and a second blocking member are provided in the lamp holder body, and in an original state, the first blocking member blocks the first through hole, and the second blocking member blocks the second through hole; when the internal temperature of the lamp holder body reaches a threshold value, the first blocking member releases the blockage of the first through hole, and the second blocking member releases the blockage of the second through hole.

[0005] Preferably, the first blocking member is a first rubber sheet, the top end of which is connected to the lamp holder body; a first baffle is provided on the bottom surface of the lamp holder body to limit the moving distance of the bottom end of the first rubber sheet, the first baffle is located between the light source and the first rubber sheet, and there is a distance between the top end of the first baffle and the top surface of the lamp holder body; a first drainage hole is provided on the bottom surface of the lamp holder body, and the first drainage hole is located between the first baffle and the first rubber sheet; the second blocking member is a second rubber sheet, the top end of which is connected to the lamp holder body; a first drainage hole is provided on the bottom surface of the inner chamber A second baffle is provided for limiting the moving distance of the bottom end of the second rubber sheet, the second baffle is located between the exhaust pipe and the second rubber sheet, and there is a distance between the top end of the second baffle and the top surface of the inner cavity; a second drainage hole is provided on the bottom surface of the connecting portion, and the second drainage hole is located on the side of the second baffle facing away from the first through hole; a rubber block is provided on the bottom surface of the connecting portion for blocking the second drainage hole, the rubber block is located outside the connecting portion, and an elastic pull rope is connected to the top surface, the top end of the elastic pull rope is fixed in the inner cavity, and the diameter of the elastic pull rope is smaller than the diameter of the second drainage hole.

[0006] Preferably, the height of the first partition is greater than the height of the midpoint of the first rubber sheet, and the relationship between the distance S1 from the first partition to the first rubber sheet and the distance L1 between the upper and lower ends of the first rubber sheet is: S1<0.43L1; The height of the second partition is greater than the height of the midpoint of the second rubber sheet. The relationship between the distance S2 from the second partition to the second rubber sheet and the distance L2 between the upper and lower ends of the second rubber sheet is: S2<0.43L2.

[0007] Preferably, the exhaust pipe is located between the second drainage hole and the second partition plate, and the top end of the elastic pull rope is fixed to the top surface of the connecting portion.

[0008] Preferably, the LED lamp light source is an LED lamp panel, the L-shaped lamp panel is fixed on the top surface of the lamp holder body, and a plurality of heat dissipation fins are arranged on the outer surface of the lamp holder body facing the position of the LED lamp panel.

[0009] During use of the street lamp cap provided by the present invention, in the original state, the first blocking member blocks the first through hole, and the second blocking member blocks the second through hole, so that rainwater is not easy to enter the interior of the cap; When the temperature rises, the gas inside the lamp holder expands. During the expansion, the gas exerts pressure on the first sealing member in the left direction, causing the first sealing member to press on the first through hole. During the expansion, the gas exerts pressure on the second sealing member in the right direction. When the threshold value is reached, the second sealing member opens, and the hot air enters the inner chamber through the first through hole and then rises through the exhaust pipe. During the process of the hot air flow rising with the exhaust pipe, a chimney effect is formed in the exhaust pipe, causing the second ventilation hole to open to replenish external air to the inside of the lamp holder, thereby quickly cooling the inside of the lamp holder. When the temperature inside the lamp holder drops, the first sealing member and the second sealing member return to their original state. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the internal structure of a street lamp cap in an embodiment is shown; Figure 2 Shows Figure 1 A magnified view at point A; Markings in the accompanying drawings: The lamp holder body 10, the first through hole 10-1 and the second through hole 10-2, the first drainage hole 10-3, the connecting part 20, the inner chamber 20-1, the LED light source 30, the first rubber sheet 40, the first partition 50, the second rubber sheet 60, the second partition 70, the rubber block 80, the elastic pull rope 90, the heat dissipation fins 100, and the exhaust pipe 110. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] For examples, see Figure 1 and Figure 2 The present embodiment is a street lamp cap, comprising a cap body 10, a connecting portion 20 is provided on one side of the cap body, an LED light source 30 is provided in the cap body, and the LED light source is fixed to the top of the cap body; an inner chamber 20-1 is provided inside the connecting portion, a first through hole 10-1 and a second through hole 10-2 are provided on the cap body, and the second through hole is connected to the inner chamber; an exhaust pipe 110 connected to the inner chamber is fixed to the top surface of the connecting portion; A first rubber sheet 40 and a second rubber sheet 60 are arranged in the lamp holder body, and the top end of the first rubber sheet is connected to the lamp holder body; a first partition 50 for limiting the moving distance of the bottom end of the first rubber sheet is arranged on the bottom surface of the lamp holder body, and the first partition is located between the light source and the first rubber sheet, and there is a gap between the top end of the first partition and the top surface of the lamp holder body; a first drainage hole 10-3 is arranged on the bottom surface of the lamp holder body, and the first drainage hole is located between the first partition and the first rubber sheet; The top end of the second rubber sheet is connected to the lamp holder body; a second partition 70 for limiting the moving distance of the bottom end of the second rubber sheet is arranged on the bottom surface of the inner cavity, the second partition is located between the exhaust pipe and the second rubber sheet, and there is a distance between the top end of the second partition and the top surface of the inner cavity; a second drainage hole 20-1 is arranged on the bottom surface of the connecting part, and the second drainage hole is located on the side of the second partition facing away from the first through hole; a rubber block 80 for blocking the second drainage hole is arranged on the bottom surface of the connecting part, the rubber block is located outside the connecting part, and an elastic pull rope 90 is connected to the top surface, the top end of the elastic pull rope is fixed in the inner cavity, and the diameter of the elastic pull rope is smaller than the diameter of the second drainage hole.

[0013] During the use of the above street lamp cap, when the temperature rises, the gas inside the cap expands. Figure 1 When expanding, the gas forms a pressure in the left direction on the first rubber sheet, so that the first rubber sheet is pressed on the first through hole. When expanding, the gas forms a pressure in the right direction on the second rubber sheet, so that the second rubber sheet opens under a certain pressure. When the hot air flow rises with the exhaust pipe, the exhaust pipe forms a chimney effect in the process of the hot air flow rising with the exhaust pipe, so that the second vent hole opens to replenish the external air inside the lamp head, so as to quickly cool down the inside of the lamp head. When the temperature inside the lamp head drops, the first rubber sheet and the second rubber sheet return to their original state under their own gravity to prevent rainwater from directly entering. Among them, the first partition is to prevent When the bottom end of the first rubber sheet moves to the right, the moving distance is too large and the height is too high, so that rainwater enters and splashes on the light source. The first guide hole is used to prevent rainwater from entering and being unable to be discharged when the bottom end of the first rubber sheet moves to the right; the second partition is used to prevent rainwater from entering through the exhaust pipe and then directly entering the lamp holder through the first through hole when the bottom end of the first rubber sheet moves to the right; the second guide hole is used to prevent rainwater from entering the inner chamber through the exhaust pipe and being unable to be discharged, wherein the blocking block is opened by gravity after rainwater enters the inner chamber and accumulates, and when the rainwater is discharged, the blocking block returns to its original state under the action of the elastic rope; In actual manufacturing, it is preferred that the exhaust pipe is disposed between the second drainage hole and the second partition plate, and the top end of the elastic pull rope is fixed to the top surface of the connecting portion.

[0014] As a preferred embodiment, the height of the first partition is greater than the height of the midpoint of the first rubber sheet, and the relationship between the distance S1 from the first partition to the first rubber sheet and the distance L1 between the upper and lower ends of the first rubber sheet is: S1<0.43L1; It can be seen that the first guide hole is relatively small compared with the first through hole, and the ventilation effect of the first guide hole and the second ventilation hole is negligible; Of course, in actual use, the first guide hole and the first partition may not be provided, and a small amount of rainwater entering may be evaporated and discharged directly by the chimney effect and the hot air flow. This structure is suitable for high-power lamp holders. As an embodiment, the height of the second partition is greater than the height of the midpoint of the second rubber sheet, and the relationship between the distance S2 from the second partition to the second rubber sheet and the distance L2 between the upper and lower ends of the second rubber sheet is: S2<0.43L2.

[0015] As an implementation mode, the LED lamp light source is an LED lamp panel, the L lamp panel is fixed on the top surface of the lamp holder body, and a plurality of heat dissipation fins 100 are arranged on the outer surface of the lamp holder body facing the position of the LED lamp panel. Of course, the above-mentioned LED lamp panel can also use other LED light sources such as LED bulbs.

[0016] It should be noted that, in the above-mentioned embodiment, the above-mentioned first rubber sheet and second rubber sheet may also be correspondingly arranged into other forms of first sealing members and second sealing members, as long as the following functions can be achieved: in the original state, the first sealing member blocks the first through hole, and the second sealing member blocks the second through hole; when the internal temperature of the lamp holder body reaches a threshold value, the first sealing member releases the blockage of the first through hole, and the second sealing member releases the blockage of the second through hole.

[0017] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0018] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0019] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0020] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A street lamp cap, comprising a cap body (10), a connection portion (20) being provided on one side of the cap body, an LED light source (30) being provided in the cap body, characterized in that: The LED light source is fixed to the top of the lamp holder body; An inner cavity (20-1) is provided inside the connection portion, a first through hole (10-1) and a second through hole (10-2) are provided on the lamp holder body, and the second through hole is in communication with the inner cavity; An exhaust pipe (110) communicating with the inner chamber is fixed on the top surface of the connecting portion; The lamp holder body is provided with a first blocking member and a second blocking member, In an original state, the first blocking member blocks the first through hole, and the second blocking member blocks the second through hole; When the temperature inside the lamp holder body reaches a threshold value, the first blocking member releases the blocking of the first through hole, and the second blocking member releases the blocking of the second through hole.

2. A street lamp cap according to claim 1, characterized in that: The first sealing member is a first rubber sheet (40), the top end of the first rubber sheet being connected to the lamp holder body; A first partition (50) is provided on the bottom surface of the lamp holder body for limiting the moving distance of the bottom end of the first rubber sheet, the first partition is located between the light source and the first rubber sheet, and there is a distance between the top end of the first partition and the top surface of the lamp holder body; A first drainage hole (10-3) is provided on the bottom surface of the lamp holder body, and the first drainage hole is located between the first partition plate and the first rubber sheet; The second sealing member is a second rubber sheet (60), and the top end of the second rubber sheet is connected to the lamp holder body; A second baffle (70) is provided on the bottom surface of the inner cavity for limiting the moving distance of the bottom end of the second rubber sheet, the second baffle is located between the exhaust pipe and the second rubber sheet, and there is a distance between the top end of the second baffle and the top surface of the inner cavity; A second drainage hole (20-1) is provided on the bottom surface of the connecting portion, and the second drainage hole is located on a side of the second partition plate facing away from the first through hole; A rubber block (80) for sealing the second drainage hole is arranged on the bottom surface of the connecting portion. The rubber block is located outside the connecting portion, and an elastic pull rope (90) is connected to the top surface. The top end of the elastic pull rope is fixed in the inner cavity, and the diameter of the elastic pull rope is smaller than the diameter of the second drainage hole.

3. A street lamp cap according to claim 2, characterized in that: The height of the first partition is greater than the height of the midpoint of the first rubber sheet. The relationship between the distance S1 from the first partition to the first rubber sheet and the distance L1 between the upper and lower ends of the first rubber sheet is: S1<0.43L1; The height of the second partition is greater than the height of the midpoint of the second rubber sheet. The relationship between the distance S2 from the second partition to the second rubber sheet and the distance L2 between the upper and lower ends of the second rubber sheet is: S2<0.43L2.

4. A street lamp cap according to claim 2, characterized in that: The exhaust pipe is located between the second drainage hole and the second partition plate, and the top end of the elastic drawstring is fixed to the top surface of the connecting portion.

5. A street lamp cap according to any one of claims 1 to 3, characterized in that: The LED lamp light source is an LED lamp panel, the L-shaped lamp panel is fixed on the top surface of the lamp holder body, and a plurality of heat dissipation fins (100) are arranged on the outer surface of the lamp holder body at a position of the LED lamp panel.

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