CN218119587U - Outdoor power supply device and outdoor lighting device - Google Patents

Outdoor power supply device and outdoor lighting device Download PDF

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Publication number
CN218119587U
CN218119587U CN202222081441.1U CN202222081441U CN218119587U CN 218119587 U CN218119587 U CN 218119587U CN 202222081441 U CN202222081441 U CN 202222081441U CN 218119587 U CN218119587 U CN 218119587U
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opening
wall
slot
power supply
channel
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CN202222081441.1U
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Chinese (zh)
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王文婷
曹家云
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Signify Holding BV
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Signify Holding BV
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Abstract

The application provides an outdoor power supply unit and outdoor lighting device, outdoor lighting device include the lamp and with the outdoor power supply unit that the lamp electricity is connected, wherein, outdoor power supply unit includes: the sealing device comprises a shell, a sealing cover and a sealing part, wherein the shell is provided with an opening; the sealing cover is arranged at the opening in a covering manner, a pressure release channel is formed between the sealing cover and part of the edge of the opening and the sealing cover along the circumferential direction of the opening, one end of the pressure release channel is communicated with the inside of the shell, and the other end of the pressure release channel is communicated with the outside atmosphere; the sealing part is arranged in the pressure release channel, and the sealing part elastically deforms when the air pressure difference is greater than or equal to a threshold value so as to open the pressure release channel; the sealing part resets when the air pressure difference is smaller than the threshold value so as to close the pressure release channel; the air pressure difference is obtained by subtracting the external atmospheric pressure from the air pressure in the shell, and the threshold value is greater than zero.

Description

Outdoor power supply device and outdoor lighting device
Technical Field
The application relates to the technical field of lighting, in particular to an outdoor power supply device and an outdoor lighting device.
Background
Outdoor lighting devices, such as street lamps, have been gradually popularized and applied to road lighting by virtue of their advantages of high efficiency, energy saving, etc. An outdoor lighting device includes a lamp and an outdoor power supply for supplying power to the lamp. Wherein, some outdoor lighting device's lamp and outdoor power supply unit concentrate on a casing, and other outdoor lighting device settings are in different casings, no matter be integrative design or components of a whole that can function independently design, because outdoor lighting device sets up in the open air, in order to ensure its life, when needing the atmospheric pressure difference inside and outside the casing to reach certain threshold value, carry out the pressure release with the gas outgoing in the casing and exhaust.
In the related art, a one-way valve is usually disposed on a housing or a cover to exhaust air in the housing, thereby improving the service life of the outdoor lighting device.
SUMMERY OF THE UTILITY MODEL
The inventors of the present application have realized that: this kind of outdoor lighting device among the correlation technique owing to set up the check valve on casing or closing cap for this kind of outdoor lighting device among the correlation technique can reach the carminative effect of pressure release within a certain range, but dust and rainwater can enter into the inside of casing through the check valve, cause the influence to inside component, consequently, can't compromise sealed and pressure release radiating purpose.
An object of the embodiment of the application is to provide an outdoor power supply device for solve the problem that can't compromise sealed and pressure release exhaust purpose among the correlation technique.
The inventor of the present application proposes the basic idea that: form the pressure release passageway between the partial edge of opening along circumference and the closing cap of casing, the sealing of setting in the pressure release passageway takes place elastic deformation and resets under the atmospheric pressure effect in the casing, and then realizes that the automation of pressure release passageway is opened and is closed to compromise sealed and the carminative effect of pressure release.
Based on the foregoing basic concept, in a first aspect, an embodiment of the present application provides an outdoor power supply apparatus, including: the sealing device comprises a shell, a sealing cover and a sealing part, wherein the shell is provided with an opening; the sealing cover is arranged at the opening in a covering mode, a pressure release channel is formed between the sealing cover and part of the edge of the opening along the circumferential direction of the opening, one end of the pressure release channel is communicated with the inside of the shell, and the other end of the pressure release channel is communicated with the outside atmosphere; the sealing part is arranged in the pressure release channel, and the sealing part is elastically deformed when the air pressure difference is greater than or equal to a threshold value so as to open the pressure release channel; the sealing part resets when the air pressure difference is smaller than the threshold value so as to close the pressure release channel; the air pressure difference is obtained by subtracting the external atmospheric pressure from the air pressure in the shell, and the threshold value is greater than zero.
Through adopting above-mentioned technical scheme, avoided dust and rainwater to enter into the casing through the exhaust hole and lead to the inside circuit board components of casing to damage, compromise sealed and the carminative effect of pressure release, improved outdoor power supply unit's life on the whole.
In some embodiments, the pressure relief channel comprises: the accommodating channel comprises a close end and a far end, the close end is close to the opening, the far end is far away from the opening, and the close end is communicated with the inside of the shell; the opening cavity is communicated with the outside atmosphere and is positioned on one side of the accommodating channel along the direction vertical to the extending direction of the accommodating channel; the sealing part is arranged in the accommodating channel and is positioned at the position of the opening cavity, the air pressure difference is larger than or equal to the threshold value, the sealing part elastically deforms towards the direction close to the far end, so that a communication gap is formed between the sealing part and the edge of one side, away from the far end, of the opening cavity, and the communication gap is communicated with the opening cavity and the accommodating channel.
By adopting the technical scheme, the outdoor power supply device is simple in structure and low in manufacturing cost.
In some embodiments, the open cavity is located at the distal end, and the sealing portion is configured to abut against an inner wall of the receiving channel at the distal end when elastically deformed in a direction toward the distal end.
By adopting the technical scheme, the situation that the pressure release channel cannot be closed due to the elastic failure of the sealing part caused by overlarge air pressure in the shell is avoided, and the requirements on dust prevention and water prevention cannot be met.
In some embodiments, the open cavity has a first cavity wall on a side facing away from the distal end; the first cavity wall is obliquely arranged relative to the extending direction of the accommodating channel, so that the opening cavity is flared along the direction close to the accommodating channel.
Through adopting above-mentioned technical scheme for the distance that holds between the inner wall that the passageway is located the downside and the first chamber wall reduces, forms the intercommunication clearance easily, is favorable to the discharge of casing internal gas.
In some embodiments, the junction of the first cavity wall and the inner wall of the accommodating channel is provided with a chamfer.
By adopting the technical scheme, the width of the communication gap at the joint of the first cavity wall and the inner wall of the accommodating channel is increased, and the exhaust time is shortened.
In some embodiments, a flange is provided on one of the housing and the cover, a first slot is provided on the other of the housing and the cover, the flange and the first slot are both located at an edge of the opening and are arranged along a circumferential direction of the opening, and the flange is inserted into the first slot; the first slot comprises a slot bottom wall, a first slot side wall and a second slot side wall, wherein the first slot side wall is positioned at one side edge of the slot bottom wall close to the opening, and the second slot side wall is positioned at one side edge of the slot bottom wall far away from the opening; the flange includes a reduced thickness section having a thickness smaller than that of the flange body section, and a flange body section connected to an end of the reduced thickness section, the reduced thickness section forming the accommodation passage with the tank bottom wall, the reduced thickness section forming the open cavity with the second tank side wall.
Through adopting above-mentioned technical scheme, hold the simple structure in passageway and opening chamber for the pressure release passageway is the S form in the cross-section of perpendicular to opening circumference, and like this, the entering of having avoided dust and rainwater holds the passageway, has improved the dustproof and waterproof grade of casing.
In some embodiments, the flange is notched on a side adjacent to the second slot side wall such that the flange forms the thinned section at the location of the notch.
By adopting the technical scheme, the manufacturing cost is low.
In some embodiments, the flange and the first insertion groove are arranged around the opening, a sealing ring is arranged between the flange and the groove bottom wall, and the sealing portion is a portion of the sealing ring located at the thinned section.
Through adopting above-mentioned technical scheme for the casing has reduced the quantity of spare part when satisfying sealed and exhaust requirement, has simplified outdoor power supply unit's structure.
In some embodiments, the first slot is disposed on the cover; a second slot is arranged on the shell, and the side wall of the second slot is inserted into the second slot; a first gap is formed between the flange and a part of the first slot side wall and the thinning section, the first gap is communicated with the inside of the shell and the near end of the accommodating channel, and a second gap is formed between the second slot side wall corresponding to the thinning section and the slot wall of the second slot along the circumferential direction of the opening, and the second gap is communicated with the outside atmosphere and the opening cavity.
By adopting the technical scheme, the pressure release channel is S-shaped in the section perpendicular to the opening, and the sealing performance of the pressure release channel is improved while the exhaust requirement of the pressure release channel is met.
In some embodiments, along the circumferential direction of the opening, the second slot-side wall is sealed by ultrasonic welding between a portion of the flange body section corresponding to the groove wall of the second insertion slot.
By adopting the technical scheme, the part of the flange body section is integrated with the groove wall of the second slot, and the sealing property between the part of the flange body section and the sealing cover is improved.
In some embodiments, the first slot is disposed on the cover, and along the circumferential direction of the opening, a part of the first slot side wall extends into the inside of the casing through the opening, one of the first slot side wall and the casing inner wall of the casing is provided with a clamping protrusion, the other of the first slot side wall and the casing inner wall is provided with a clamping hole, and the clamping protrusion is clamped with the clamping hole.
By adopting the technical scheme, the damage to the opening is reduced and the service life of the outdoor power supply device is prolonged while the reliable connection between the shell and the sealing cover is ensured.
In some embodiments, the size of the open cavity in the circumferential direction of the opening ranges from 3mm to 10mm.
Through adopting above-mentioned technical scheme, in above-mentioned size L within range, sealing portion elastic deformation volume is less, is similar to rigid structure, and the effect of atmospheric pressure in the casing is down to being close to and keeping away from end one side and taking place the turn, and then forms the intercommunication clearance with the first chamber wall in opening chamber, has improved sealing portion's life.
In a second aspect, an embodiment of the present application provides an outdoor lighting device, which includes a lamp and the outdoor power supply device of the first aspect, where the outdoor power supply device is electrically connected to the lamp.
Since the outdoor power supply device in the second aspect has the same structure as the outdoor power supply device in the first aspect, the achieved effects are also the same, and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of an outdoor lighting device according to some embodiments of the present disclosure;
FIG. 2 is a block diagram of an outdoor power unit in some embodiments of the present application;
FIG. 3 is an exploded view of FIG. 2;
fig. 4 is a structural view of the outdoor power supply apparatus in fig. 2 from one perspective;
FIG. 5 isbase:Sub>A cross-sectional view A-A of FIG. 4;
FIG. 6 is an exploded view of FIG. 5;
FIG. 7 is an enlarged view taken at I in FIG. 5;
FIG. 8 is an enlarged view taken at II in FIG. 5;
FIG. 9 is an enlarged view of the position of the sealing portion with the pressure relief passage in a closed condition at M in FIG. 7;
FIG. 10 is an enlarged view of the position of the sealing portion with the pressure relief passageway in an open condition at M in FIG. 7;
FIG. 11 is a schematic diagram comparing the positions of the sealing portion before and after deformation from another view angle in an open state of the pressure relief passageway of FIG. 10;
FIG. 12 is a schematic structural view of the housing of FIG. 1 or FIG. 2;
FIG. 13 is an enlarged view at III of FIG. 12;
FIG. 14 is a schematic view of the closure of FIG. 1 or FIG. 2;
FIG. 15 is an enlarged view taken at IV in FIG. 14;
FIG. 16 is a graph of the relationship between O-ring material, diameter, and deflection and the corresponding positive pressure.
Description of reference numerals:
10. an outdoor power supply device; 11. a housing; 111. an opening; 112. an inner wall of the housing; 12. sealing the cover; 121. an inner wall of the cover; 122. connecting lugs; 13. a seal ring; 130. a sealing part; 14. a flange; 141. a thinning section; 142. a flange body section; 15. a first slot; 151. a tank bottom wall; 152. a first slot sidewall; 153. a second trench sidewall; 16. a second slot; 17. clamping the bulges; 18. clamping holes; 20. a pressure relief channel; 21. a receiving channel; 211. a proximal end; 212. a distal end; 22. an open cavity; 221. a first chamber wall; 222. a notch; 223. chamfering; 23. communicating the gaps; 24. a first gap; 25. a second gap; 26. a circuit board assembly; 30. and a lamp.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, it is to be understood that the terms "upper", "lower", "side", "front", "rear", and the like indicate orientations or positional relationships based on installation, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.
It should be noted that the same reference numerals are used to denote the same components or parts in the embodiments of the present application, and for the same parts in the embodiments of the present application, only one of the parts or parts may be given the reference numeral, and it should be understood that the reference numerals are also applicable to the other same parts or parts.
Fig. 1 to 3 are schematic structural views of an outdoor lighting device in some embodiments of the present disclosure, fig. 2 is a structural view of an outdoor power supply device 10 in some embodiments of the present disclosure, and fig. 3 is an exploded view of fig. 2. The embodiment of the application provides an outdoor lighting device, including lamp 30 and outdoor power supply unit 10, outdoor power supply unit 10 is connected with lamp 30 electricity, and the example, outdoor power supply unit 10 includes casing 11, closing cap 12 and sets up circuit board components 26 in casing 11, and circuit board components 26 are connected with lamp 30 electricity.
Wherein the lamp 30 is used for illumination, the lamp 30 may include a lamp 30 head and a lamp 30 rod, and the lamp 30 rod is fixed on the ground. Of course, the lamp 30 may also include only the lamp 30 head, and is not particularly limited herein.
As shown in fig. 3, the circuit board assembly 26 is sealed in the housing 11 by potting, and the circuit board assembly 26 is electrically connected to the lamp 30 by an electrical connection line, so as to improve the dustproof and waterproof grade of the outdoor power supply device 10.
As shown in fig. 4 and 5, fig. 4 isbase:Sub>A structural view of the outdoor power supplying apparatus 10 in fig. 2 from one perspective, and fig. 5 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 4. The shell 11 is provided with an opening 111, the cover 12 is covered at the opening 111, and a pressure release channel 20 is formed between the cover 12 and part of the edge of the opening 111 along the circumferential direction of the opening 111, one end of the pressure release channel 20 is communicated with the inside of the shell 11, and the other end is communicated with the outside atmosphere; the outdoor power supply device 10 further includes a sealing portion 130, the sealing portion 130 is disposed in the pressure release passage 20, and the sealing portion 130 is elastically deformed to open the pressure release passage 20 when the air pressure difference is greater than or equal to a threshold value; the seal portion 130 is reset to close the pressure release passage 20 when the air pressure difference is smaller than the threshold value.
Through adopting above-mentioned technical scheme, compare in the switch through check valve control pressure release passageway 20, need not reserve the exhaust hole on casing 11 and closing cap 12, avoided dust and rainwater to lead to the inside circuit board components 26 of casing 11 to damage in entering into casing 11 through the exhaust hole, compromise sealed and the carminative effect of pressure release, improved outdoor power supply unit 10's life on the whole.
It should be noted that the air pressure difference is a difference obtained by subtracting the external atmospheric pressure from the air pressure inside the housing 11, and the threshold is greater than zero, that is, only when the air pressure inside the housing 11 is greater than the atmospheric pressure outside the housing 11 and the air pressure difference is greater than or equal to the set threshold, the sealing portion 130 elastically deforms under the action of the pressure inside the housing 11 to open the pressure release passage 20; the sealing portion 130 resets to close the pressure release passage 20 when the air pressure difference is less than a threshold value, which is the air pressure P in the housing 11 after the temperature rises, to seal the housing 11, thereby achieving the automatic opening and closing of the pressure release passage 20 1 The difference between the force F of the air pressure acting on the sealing portion 130 and the frictional force to be overcome when the sealing portion 130 relatively moves with respect to the accommodating passage 21. The threshold value is determined by combining the material of the sealing portion 130 and the relevant parameters of the accommodating passage 21 and the open cavity 22, and may be a specific value or a set range, which is not limited herein.
The housing 11 and the cover 12 may be made of Polysulfone (PSU) plastic, and the polysulfone plastic can maintain good mechanical properties and electrical insulation properties in a high-temperature and humid environment, so that the service life of the outdoor power supply device 10 is prolonged. Of course, the materials of the housing 11 and the cover 12 may be made of other plastic or composite materials, and are not limited in this regard.
As shown in fig. 5 to 11, fig. 6 is an exploded view of fig. 5, fig. 7 is an enlarged view of I in fig. 5, fig. 8 is an enlarged view of II in fig. 5, fig. 9 is an enlarged view of a position of the sealing portion 130 in a state where the pressure release channel 20 is closed in M in fig. 7, fig. 10 is an enlarged view of a position of the sealing portion 130 in a state where the pressure release channel 20 is opened in M in fig. 7, and fig. 11 is a comparison view of positions before and after the sealing portion 130 is deformed in another viewing angle in a state where the pressure release channel 20 is opened in fig. 10. In some embodiments, the pressure relief passage 20 includes: accommodating channel 21 and open cavity 22.
Wherein the accommodating passage 21 includes a close end 211 disposed close to the opening 111 and a far end 212 disposed far from the opening 111, the close end 211 communicating with the inside of the housing 11; the open cavity 22 is communicated with the outside atmosphere, and the open cavity 22 is positioned on one side of the accommodating channel 21 along the direction Z perpendicular to the extending direction Y of the accommodating channel 21; the sealing portion 130 is disposed in the accommodating channel 21 and located at the position of the opening cavity 22, and when the air pressure difference is greater than or equal to the threshold value, the sealing portion 130 elastically deforms toward the direction close to the far end 212, so that a communication gap 23 is formed between the sealing portion 130 and an edge of the opening cavity 22, which is far away from the far end 212, and the communication gap 23 communicates the opening cavity 22 and the accommodating channel 21.
The sealing portion 130 is disposed in the accommodating passage 21 to be equivalent to a valve core, and the arrangement of the opening cavity 22 facilitates the formation of the communication gap 23 communicating the opening cavity 22 with the accommodating passage 21 with the sealing portion 130 to open the pressure release passage 20, so that the outdoor power supply device 10 has a simple structure and a low manufacturing cost.
It should be noted that the opening 111 is rectangular, and one circle of the circumferential opening 111 of the opening 111 includes the sum of the length direction and the width direction, but when the pressure relief channel 20 is disposed in the length direction of the opening 111, the extending direction Y of the accommodating channel 21 refers to the width direction; a direction Z perpendicular to the extending direction Y of the accommodating passage 21 refers to the depth direction of the housing 11; when the pressure release channel 20 is disposed in the width direction of the opening 111, the extending direction Y of the accommodating channel 21 refers to the length direction, and in short, the extending direction Y of the accommodating channel 21 is the direction perpendicular to and coplanar with the circumferential direction of the opening 111, and is not particularly limited again.
Of course, the opening 111 may be square or circular, in addition to being rectangular, and when the shape of the opening 111 is circular, the circumferential direction X of the opening 111 means one turn of the opening 111, and the extending direction Y of the accommodating passage 21 is the radial direction of the opening 111.
As shown in fig. 9, in some embodiments, the open cavity 22 is located at the distal end 212, and the sealing portion 130 abuts against the inner wall of the receiving channel 21 located at the distal end 212 when being elastically deformed in a direction approaching the distal end 212.
By adopting the above technical scheme, the inner wall of the accommodating channel 21 located at the position far away from the end 212 limits the elastic deformation of the sealing portion 130 well, so that the sealing portion 130 is elastically deformed within the elastic range thereof, and the situation that the pressure release channel 20 cannot be closed due to the elastic failure of the sealing portion 130 caused by the overlarge air pressure in the housing 11 and the dustproof and waterproof requirements cannot be met is avoided.
As shown in fig. 9 and 10, in some embodiments, the open cavity 22 has a first cavity wall 221 on a side facing away from the end 212; the first cavity wall 221 is disposed obliquely with respect to the extending direction of the accommodating channel 21 so that the open cavity 22 flares in a direction approaching the accommodating channel 21.
In this way, the distance between the inner wall of the receiving channel 21 on the lower side and the first cavity wall 221 is reduced, the communication gap 23 is easily formed when the sealing portion 130 is elastically deformed in the direction close to the far end 212, and the width of the communication gap 23 is gradually increased along the extending direction of the communication gap 23, which is beneficial to discharge the gas in the housing 11.
As shown in fig. 10, in some embodiments, the junction of the first cavity wall 221 and the inner wall of the receiving channel 21 is provided with a chamfer 223. Thus, the width of the communication gap 23 at the joint of the first cavity wall 221 and the inner wall of the accommodating passage 21 is increased, the pressure release passage 20 is more easily opened, and the scheduling time is greatly shortened.
As shown in fig. 5, 6, 12 and 13, fig. 12 is a schematic structural view of the housing 11 in fig. 1 or 2, and fig. 13 is an enlarged view of a position III in fig. 12. In some embodiments, the housing 11 is provided with a flange 14, the cover 12 is provided with a first slot 15, the flange 14 and the first slot 15 are both located at an edge of the opening 111 and are arranged along a circumferential direction of the opening 111, and the flange 14 is inserted into the first slot 15; the first insertion groove 15 includes a groove bottom wall 151, a first groove side wall 152 at one side edge of the groove bottom wall 151 close to the opening 111, and a second groove side wall 153 at one side edge of the groove bottom wall 151 away from the opening 111; the flange 14 includes a thinned section 141, and a flange body section 142 connected to an end of the thinned section 141, the thinned section 141 having a thickness smaller than that of the flange body section 142, the thinned section 141 forming a receiving passage 21 with the groove bottom wall 151, and the thinned section 141 forming an open cavity 22 with the second groove side wall 153.
By adopting the above technical scheme, the structure of the accommodating channel 21 and the opening cavity 22 is simple, so that the pressure release channel 20 is S-shaped in the section perpendicular to the circumferential direction of the opening 111, thus avoiding the entering of dust and rainwater into the accommodating channel 21 and improving the dustproof and waterproof grade of the shell 11.
Of course, the positions of the flange 14 and the first slot 15 may be interchanged, that is, the flange 14 may be disposed on the cover 12, and the first slot 15 is disposed on the housing 11, which is not limited herein.
As shown in FIG. 13, in some embodiments, the dimension L of the open cavity 22 in the circumferential direction of the opening 111 ranges from 3mm to 10mm.
The sealing portion 130 and the opening cavity 22 have the same size L in the circumferential direction of the opening 111 along the circumferential direction of the opening 111, and the sealing portion 130 has a small elastic deformation amount within the size L range, is similar to a rigid structure, and is bent toward the side close to the far end 212 under the action of the air pressure in the housing 11, so that the communication gap 23 is formed between the sealing portion 130 and the first cavity wall 221 of the opening cavity 22, and the service life of the sealing portion 130 is prolonged.
As shown in fig. 12 and 13, in some embodiments, the flange 14 is notched 222 on a side adjacent to the second slot sidewall 153 such that the flange 14 forms a thinned section 141 at the location of the notch 222.
Therefore, the structure of the existing shell 11 can be partially modified, so that the shell has the functions of sealing, pressure relief and air exhaust, and the manufacturing cost is low.
It should be noted that the number, position and size of the notches 222 can be determined according to actual needs, and are not limited in detail herein. Of course, the notch 222 of the housing 11 may be formed in the flange 14, or the notch 222 may be formed integrally by a mold, which is not particularly limited herein.
As shown in fig. 3, 6 and 13, in some embodiments, the flange 14 and the first insertion groove 15 are disposed around the opening 111, a sealing ring 13 is disposed between the flange 14 and the bottom wall 151 of the groove, and the sealing portion 130 is a portion of the sealing ring 13 at the thinned section 141.
Therefore, the number of parts of the shell 11 is reduced while the sealing and exhausting requirements are met, the structure of the outdoor power supply device 10 is simplified, and the manufacturing cost of the outdoor power supply device is effectively reduced.
Besides the sealing ring 13, sealing strips may be provided between the flange 14 and the groove bottom wall 151 at the thinned section 141 and at the flange body section 142, respectively, and the sealing portion 130 is a sealing strip located at the thinned section 141, and is not particularly limited herein.
The sealing ring 13 is usually an O-ring 13, and has a diameter ranging from 2mm to 3mm, but the size of the sealing ring 13 may be adjusted according to the size of the storage space, and is not particularly limited herein.
As shown in fig. 5, 6, 14 and 15, fig. 14 is a schematic structural view of the closure 12 in fig. 1 or 2, and fig. 15 is an enlarged view of fig. 14 at IV. In some embodiments, the first slot 15 is disposed on the cover 12, and along a circumferential direction of the opening 111, a portion of the first slot sidewall 152 extends from the opening 111 into the inside of the housing 11, the shell inner wall 112 of the housing 11 is provided with a clamping protrusion 17, the first slot sidewall 152 is provided with a clamping hole 18, and the clamping protrusion 17 is clamped with the clamping hole 18. Illustratively, the first groove side wall 152 extends along the thickness direction of the cover 12 and protrudes from the cover inner wall 121 to be connected with a plurality of connecting lugs 122, the plurality of connecting lugs 122 are arranged at intervals along the circumferential direction of the opening 111, and each connecting lug 122 is provided with a clamping hole 18.
The casing 11 is connected with the closing cap 12 through many places joint along opening 111's circumference, has improved the reliability that casing 11 and closing cap 12 are connected, and the engaging lug 122 stretches into in the casing 11, has improved the leakproofness of opening 111 and closing cap 12 junction, has improved outdoor power supply unit 10's life.
It should be noted that, along the circumferential direction of the opening 111, the clamping position of the clamping hole 18 on the connecting lug 122 and the clamping protrusion 17 on the housing 11 may overlap with the pressure release channel 20, that is, the position of the thinned section 141 of the flange 14, and of course, the pressure release channel 20, that is, the thinned section 141 of the flange 14 may also be disposed between two adjacent clamping positions, which is not limited in this respect.
In addition, the positions of the locking protrusion 17 and the locking hole 18 can be interchanged, that is, the locking protrusion 17 can also be disposed on the first groove side wall 152, and the locking hole 18 is disposed on the housing inner wall 112, which is not limited herein.
Of course, the housing 11 and the cover 12 may be fixed together by screwing, besides being fixed together by snapping, and are not limited in this regard.
As shown in fig. 6 and 10, in some embodiments, the housing 11 is provided with a second slot 16, and the second slot sidewall 153 is inserted into the second slot 16; a first gap 24 is formed between the flange 14 and the first groove side wall 152 and the portion of the thinned section 141, the first gap 24 communicates the inside of the housing 11 and the near end 211 of the accommodating passage 21, and a second gap 25 is formed between the portion of the second groove side wall 153 corresponding to the thinned section 141 and the groove wall of the second insertion groove 16 along the circumferential direction of the opening 111, the second gap 25 communicates the outside atmosphere and the opening chamber 22.
Through first clearance 24 and second clearance 25 with external atmosphere, the inside of casing 11, hold passageway 21 and opening cavity 22 intercommunication, like this, make pressure release passageway 20 be the S-shaped in the cross-section of perpendicular to opening 111, reduced with external atmosphere and the inside area of contact of casing 11, when satisfying its exhaust requirement, avoided dust and rainwater to get into the inside of casing 11, and then improved pressure release passageway 20' S leakproofness.
In some embodiments, along the circumferential direction of the opening 111, the portion of the second slot sidewall 153 corresponding to the flange body section 142 and the slot wall of the second slot 16 are sealed by ultrasonic welding.
In this way, the portions of the flange body section 142 are integrated with the groove walls of the second slot 16, improving the sealing between the portions of the flange body section 142 and the lid 12.
The portion of the second slot sidewall 153 corresponding to the flange body section 142 and the slot wall of the second slot 16 may be sealed by adhesive bonding, in addition to ultrasonic welding, and is not limited in this regard.
When the outdoor power supply device 10 in the embodiment of the present application is installed, the circuit board assembly 26 is first installed in the housing 11 through glue pouring and sealing, a through hole for a connection line between the circuit board assembly 26 and the lamp 30 to pass through is formed in the housing 11, and a sealing joint is arranged at the through hole to prevent dust and rainwater from entering the housing 11 and damaging the circuit board assembly 26; then, the sealing ring 13 is placed in the first slot 15 of the cover 12, the flange 14 on the shell 11 is inserted into the first slot 15, the sealing ring 13 is extruded in the first slot 15 through clamping, and at the moment, the flange body section 142 extrudes the sealing ring 13 and is sealed through ultrasonic welding; the sealing ring 13 at the thinned section 141 of the flange 14 forms a sealing part 130, and is relatively fixed along the circumferential direction of the opening 111, the thinned section 141 of the flange 14 is inserted into the first insertion groove 15, and the accommodating channel 21 and the opening cavity 22 of the pressure relief channel 20 are formed at the thinned section 141 of the flange 14.
In summary, the outdoor power supply apparatus 10 in the embodiment of the present application can achieve the dustproof and waterproof level of IP 67.
It should be noted that the IP67 standard refers to a protection security level. IP is an abbreviation for Ingress Protection Rating (or International Protection code) that defines the Protection of an interface against liquid and solid particles. The IP is followed by 2 digits, the 1 st is the solid protection grade, the range is 0-6, and the protection from large-particle foreign matters to dust is respectively shown; the 2 nd is the liquid protection level, ranging from 0 to 8, and respectively shows the protection under the condition of the pressure from the vertical water drop to the water bottom. Larger numbers indicate greater power.
Wherein, taking IP67 as an example, IP shows that the solid is of a standard type, 6 represents the protection grade in the solid, namely dust can not enter the whole diameter of the object and can not exceed the clearance of the shell; the protection rating in liquids, i.e. against short immersion, is 7: at normal temperature and pressure, the shell can not cause harmful effect when being soaked in water with the depth of 1M.
When the temperature in the housing 11 rises, according to the ideal gas equation formula: PV = NRT, i.e. before temperature rise: p 0 V=nRT 0 And after the temperature rises: p 1 V=nRT 1 Neglecting the volume V change in the housing 11 before and after the temperature rise, i.e. V equals, P1= P can be obtained 0 T 1 /T 0 ,P 0 At atmospheric pressure, P 1 The gas pressure inside the housing 11 is increased for the temperature. Force F = P acting on seal portion 130 1 * So, so = ab, where So is the surface area of the sealing part 130, a is the length, and b is the widthWhere a is the same size of the sealing portion 130 along the circumferential direction X of the opening 111 as the size L of the accommodating passage 21 along the circumferential direction X of the opening 111, b is the size of the sealing portion 130 in the direction Z, and when the housing 11 and the cover 12 are closed, the sealing ring 13 is in a pressed state in the first insertion groove 15 in the direction Z, that is, b is the size of the sealing portion 130 in the direction Z is equal to the size of the accommodating passage 21 in the direction Z.
As shown in fig. 16, fig. 16 is a graph showing the relationship among the material, diameter, and deformation amount of the O-ring, and the corresponding forward pressure. The forward pressure F to which the seal ring 13 is subjected is determined from the O-ring graph shown in FIG. 16 according to the material, diameter and compression of the seal ring 13 2 (ii) a From the friction coefficient μ, a friction force μ F between the seal portion 130 and the accommodation channel 21 when the seal portion moves relative to the accommodation channel 21 is obtained 2
When the sealing part 130 is under the air pressure P 1 The acting force F is larger than the friction force mu F 2 At this time, the sealing portion 130 moves toward the side close to the distal end 212 of the accommodating passage 21; f = P 1 ab≥μF 2 To obtain P 1 ≥μF 2 /(ab), pressure difference P 1 -P 0 =μF2/(ab)-P 0
The amount of deformation of the seal portion 130, which is deformed by the air pressure in the housing 11, is: y =11qL4/384ei, i = ab3/12, inertia (cm 4) in the circumferential direction X of the opening 111; a and b are the length and width of the sealing part 130, respectively, the same as above, and L = a, qL = F = P 1 ab。
When the bending moment y > d, which is the distance between the axis of the sealing portion 130 before deformation in the circumferential direction of the opening 111 and the edge of the connecting wall near the open cavity 22, is greater than d, the pressure release passage 20 is opened, and exhaust is performed, as shown in fig. 10 and 11.
It should be noted here that it should be ensured that σ = F/So is smaller than the tensile strength of the material, wherein the tensile strength σ b (Rm is also possible), unit MPa, means the maximum stress value to which the material is subjected before snapping, so is the cross-sectional area of the material, ensuring that the sealing ring 13 is sufficiently strong and remains sufficiently elastic to remain fixed with the housing channel 21.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. An outdoor power supply apparatus, comprising:
a housing (11) having an opening (111);
a cover (12) which is arranged at the opening (111) in a covering manner, and a pressure release channel (20) is formed between the cover (12) and part of the edge of the opening (111) along the circumferential direction of the opening (111), one end of the pressure release channel (20) is communicated with the inside of the shell (11), and the other end of the pressure release channel is communicated with the outside atmosphere;
a sealing portion (130) provided in the pressure release passage (20), the sealing portion (130) being elastically deformed to open the pressure release passage (20) when a difference in air pressure is greater than or equal to a threshold value; the seal (130) is reset to close the pressure relief passage (20) when the air pressure difference is less than the threshold value;
the air pressure difference is obtained by subtracting the external atmospheric pressure from the air pressure in the shell (11), and the threshold value is greater than zero.
2. An outdoor power supply apparatus according to claim 1,
the pressure relief channel (20) comprises:
a receiving channel (21) comprising a proximal end (211) disposed proximate to said opening (111) and a distal end (212) disposed distal to said opening (111), said proximal end (211) communicating with the interior of said housing (11);
an open cavity (22) communicating with the outside atmosphere and located on one side of the containing channel (21) along a direction (Z) perpendicular to the direction of extension (Y) of the containing channel (21);
the sealing part (130) is arranged at the position of the opening cavity (22), the sealing part (130) is elastically deformed towards the direction close to the far end (212) when the air pressure difference is larger than or equal to the threshold value, a communication gap (23) is formed between the sealing part (130) and one side edge of the opening cavity (22) departing from the far end (212), and the communication gap (23) is communicated with the opening cavity (22) and the accommodating channel (21).
3. An outdoor power supply apparatus according to claim 2,
the open cavity (22) is located at the far end (212), and the sealing part (130) is abutted against the inner wall of the accommodating channel (21) at the far end (212) when being elastically deformed in the direction approaching the far end (212).
4. An outdoor power supply apparatus according to claim 2,
the open cavity (22) has a first cavity wall (221) on a side facing away from the distal end (212);
the first cavity wall (221) is obliquely arranged relative to the extending direction (Y) of the accommodating channel (21) so that the opening cavity (22) is flared along the direction close to the accommodating channel (21);
and/or a chamfer (223) is arranged at the joint of the first cavity wall (221) and the inner wall of the accommodating channel (21).
5. An outdoor power supply apparatus according to any one of claims 2 to 4,
a flange (14) is arranged on one of the shell (11) and the cover (12), a first slot (15) is arranged on the other one of the shell (11) and the cover (12), the flange (14) and the first slot (15) are both positioned at the edge of the opening (111) and are arranged along the circumferential direction of the opening (111), and the flange (14) is inserted into the first slot (15);
the first insertion groove (15) comprises a groove bottom wall (151), a first groove side wall (152) positioned at one side edge of the groove bottom wall (151) close to the opening (111), and a second groove side wall (153) positioned at one side edge of the groove bottom wall (151) far away from the opening (111);
the flange (14) includes a thinned section (141), and a flange body section (142) connected to an end of the thinned section (141), a thickness of the thinned section (141) being smaller than a thickness of the flange body section (142), the thinned section (141) and the slot bottom wall (151) forming the accommodating passage (21) therebetween, and the thinned section (141) and the second slot side wall (153) forming the open cavity (22) therebetween.
6. An outdoor power supply apparatus according to claim 5,
a notch (222) is formed in one side, close to the second groove side wall (153), of the flange (14), so that the flange (14) forms the thinning section (141) at the position of the notch (222);
and/or the flange (14) and the first insertion groove (15) are arranged around the opening (111), a sealing ring (13) is arranged between the flange (14) and the groove bottom wall (151), and the sealing part (130) is the part of the sealing ring (13) at the thinning section (141).
7. An outdoor power supply apparatus according to claim 5,
the first slot (15) is arranged on the cover (12); a second slot (16) is arranged on the shell (11), and the side wall (153) of the second slot is inserted into the second slot (16);
a first gap (24) is formed between the first groove side wall (152) and the thinning section (141), the first gap (24) is communicated with the inside of the shell (11) and the near end (211) of the accommodating channel (21), a second gap (25) is formed between the part, corresponding to the thinning section (141), of the second groove side wall (153) and the groove wall of the second insertion groove (16) along the circumferential direction of the opening (111), and the second gap (25) is communicated with the external atmosphere and the opening cavity (22);
and/or, along the circumferential direction of the opening (111), the portion of the second slot side wall (153) corresponding to the flange body section (142) and the slot wall of the second slot (16) are sealed by ultrasonic welding.
8. An outdoor power supply apparatus according to claim 5,
first slot (15) set up in on closing cap (12), follow the circumference of opening (111), the partly by of first groove lateral wall (152) opening (111) stretch into the inside of casing (11), first groove lateral wall (152) be equipped with joint arch (17) on one of the shell inner wall (112) of casing (11) in both, first groove lateral wall (152) be equipped with card hole (18) on another of shell inner wall (112) in both, joint arch (17) with card hole (18) looks joint.
9. An outdoor power supply apparatus according to any one of claims 2 to 4,
the dimension L of the opening cavity (22) in the circumferential direction of the opening (111) ranges from 3mm to 10mm.
10. An outdoor lighting device, comprising:
a lamp (30);
the outdoor power supply unit (10) according to any one of claims 1-9, said outdoor power supply unit (10) being electrically connected to said lamp (30).
CN202222081441.1U 2022-08-03 2022-08-03 Outdoor power supply device and outdoor lighting device Active CN218119587U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222081441.1U CN218119587U (en) 2022-08-03 2022-08-03 Outdoor power supply device and outdoor lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222081441.1U CN218119587U (en) 2022-08-03 2022-08-03 Outdoor power supply device and outdoor lighting device

Publications (1)

Publication Number Publication Date
CN218119587U true CN218119587U (en) 2022-12-23

Family

ID=84522227

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222081441.1U Active CN218119587U (en) 2022-08-03 2022-08-03 Outdoor power supply device and outdoor lighting device

Country Status (1)

Country Link
CN (1) CN218119587U (en)

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