Patent Publication Number: US-11649950-B2

Title: Luminaire

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is based upon and claims the priority of PCT patent application No. PCT/CN2020/133353 filed on Dec. 2, 2020 which claims priority to the Chinese patent application No. 201922126088.2 filed on Dec. 2, 2019, the entire contents of which are hereby incorporated by reference herein for all purposes. 
     TECHNICAL FIELD 
     The present disclosure relates to a field of lighting technology, especially relates to a luminaire. 
     BACKGROUND 
     With the development of technology in the lighting industry, lighting techniques have made great breakthroughs, and luminaires have been continuously improved in all aspects. Usually, a luminaire includes a shade, a mounting base and an end cap. In order to achieve a high level of waterproofing and dust prevention, the shade, the mounting base and the end cap are often cross-connected at the joint thereof. As a result, when detaching the luminaire, the luminaire can be detached only after the end cap is removed firstly, which leads to inconvenient detaching operation of the luminaire and low detaching efficiency. 
     SUMMARY 
     The present disclosure discloses a luminaire. 
     A luminaire includes a shade, a mounting base, a first end cap, a second end cap, a light source module and a drive power source. The shade has two first folded edges opposite to each other, and the mounting base has two second folded edges opposite to each other; the first folded edges are in snap-fit with the second folded edges; the first end cap and the second end cap are respectively connected to two ends of the mounting base; the shade, the mounting base, the first end cap and the second end cap form an accommodating cavity, and the light source module and the drive power source are disposed in the accommodating cavity. The luminaire further includes a shade pushing assembly, and the shade pushing assembly comprises a force-exerting key and a pushing piece; the force-exerting key is in sliding fit with a sidewall of the mounting base, and the pushing piece is located in the accommodating cavity; one end of the force-exerting key is connected to the pushing piece, and the other end of the force-exerting key extends out of the mounting base; the pushing piece abuts against a first end face of at least one of the first folded edges, and the first end face is an end face on a side, which is facing the first end cap, of the first folded edge; a movement of the force-exerting key causes the pushing piece to move for driving the shade (to slide relative to the mounting base and away from the first end cap. 
     It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The accompanying drawings described herein are provided for further understanding of the present disclosure, and constitute a part of the present disclosure. The examples and illustrations thereof of the present disclosure are intended to explain the present disclosure, but do not constitute inappropriate limitations to the present disclosure. In the drawings: 
         FIG.  1    is a structure diagram of a luminaire disclosed in one example of the present disclosure; 
         FIG.  2    is an exploded structure diagram of a luminaire disclosed in one example of the present disclosure; 
         FIG.  3    is a diagram of a partial structure disclosed in one example of the present disclosure; 
         FIG.  4    is a cross-sectional view of a luminaire disclosed in one example of the present disclosure; 
         FIG.  5    is a cross-sectional view of a luminaire with a second waterproof piece disclosed in one example of the present disclosure; 
         FIG.  6    is a structure diagram of a first end cap disclosed in one example of the present disclosure; 
         FIG.  7    is a side sectional view of a luminaire in an assembled state disclosed in one example of the present disclosure; 
         FIG.  8    is a side sectional view of a luminaire in a disassembled state disclosed in one example of the present disclosure; 
         FIG.  9    is a partial top view of a luminaire disclosed in one example of the present disclosure; and 
         FIG.  10    is a bottom view of a mounting base disclosed in one example of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Examples of the present disclosure will be described below in combination with the accompanying drawings of the present disclosure. Apparently, the described examples are merely a part rather than all the examples of the present disclosure. All other examples that are derived from the examples of the present disclosure by an ordinary skilled in the art without creative efforts shall fall within the protection scope of the present disclosure. The reference numerals in the accompanying drawings are merely used to distinguish different steps in technical solutions from each other, rather than delimiting execution orders of the steps. The specific execution order may be referred to the description in the present disclosure. 
     Terms used in the present disclosure are merely for describing specific examples and are not intended to limit the present disclosure. The singular forms “one”, “the”, and “this” used in the present disclosure and the appended claims are also intended to include a multiple form, unless other meanings are clearly represented in the context. It should also be understood that the term “and/or” used in the present disclosure refers to any or all of possible combinations including one or more associated listed items. 
     Reference throughout this specification to “one embodiment,” “an embodiment,” “an example,” “some embodiments,” “some examples,” or similar language means that a particular feature, structure, or characteristic described is included in at least one embodiment or example. Features, structures, elements, or characteristics described in connection with one or some embodiments are also applicable to other embodiments, unless expressly specified otherwise. 
     It should be understood that although terms “first”, “second”, “third”, and the like are used in the present disclosure to describe various information, the information is not limited to the terms. These terms are merely used to differentiate information of a same type. For example, without departing from the scope of the present disclosure, first information is also referred to as second information, and similarly the second information is also referred to as the first information. Depending on the context, for example, the term “if” used herein may be explained as “when” or “while”, or “in response to . . . , it is determined that”. 
     LIST OF REFERENCE NUMERALS 
       100 —shade,  110 —first folded edge,  120 —enclosing portion,  121 —escape space, 
       200 —mounting base,  210 —second folded edge,  220 —second waterproof piece,  230 —clamping recess,  240 —mounting hole,  250 —wiring hole, 
       300 —first end cap,  310 —first limit space, 
       400 —second end cap,  410 —second limit space,  411 —moving gap, 
       500 —shade pushing assembly,  510 —force-exerting key,  520 —pushing piece,  521 —third folded edge, 
       610 —positioning portion,  620 —stop portion,  630 —first waterproof piece,  640 —shoulder,  650 —clamping projection,  660 —drainage hole,  670 —third waterproof piece. 
     Referring to  FIG.  1    to  FIG.  10   , an example of the present disclosure discloses a luminaire including a shade  100 , a mounting base  200 , a first end cap  300 , a second end cap  400 , a light source module, and a drive power source. 
     The mounting base  200  is a basic component of the luminaire. The mounting base  200  can provide an installation base for other components of the luminaire. The light source module is a light-emitting assembly of the luminaire. The light-emitting assembly typically includes a light source board and an illuminator. The illuminator may be preferably a light-emitting diode (LED) illuminator which has the advantages of environmental friendliness, energy conservation, long service life, etc. The light source module is electrically connected to the drive power source, and the drive power source supplies electric energy to the light source module. 
     The shade  100  has two first folded edges  110  opposite to each other, while the mounting base  200  has two second folded edges  210  opposite to each other. The first folded edges  110  are in snap-fit with the second folded edges  210 . Thus, the shade  100  may be fixedly connected to the mounting base  200 . The first end cap  300  and the second end cap  400  are connected to two ends of the mounting base  200 , respectively. The shade  100 , the mounting base  200 , the first end cap  300  and the second end cap  400  form an accommodating cavity, and the light source module and the drive power source are disposed in the accommodating cavity. Specifically, the first end cap  300  and the second end cap  400  are capable of sealing both ends of the shade  100  and the mounting base  200  to realize waterproofing and dust prevention. The light source module and the drive power source may be mounted in a variety of ways. As shown in  FIG.  2   , a mounting guide groove may be formed in the mounting base  200 . The light source module may be in plug-in fit with the mounting guide groove, and the drive power source may be fixed to the mounting base  200  by means of a threaded fastener (a screw, a bolt, etc.). 
     Moreover, the luminaire also includes a shade pushing assembly  500 . The shade pushing assembly  500  includes a force-exerting key  510  and a pushing piece  520 . The force-exerting key  510  is in sliding fit with a sidewall of the mounting base  200 . The pushing piece  520  is located in the accommodating cavity. One end of the force-exerting key  510  is connected to the pushing piece  520 , and the other end of the force-exerting key  510  extends out of the mounting base  200 . In other words, a user may act on the force-exerting key  510  from the outside of the luminaire to operate the pushing piece  520  located in the accommodating cavity. The force-exerting key  510  is slid relative to the sidewall of the mounting base  200  under the force, and the pushing piece  520  reacts accordingly. 
     The pushing piece  520  abuts against a first end face of at least one of the first folded edges  110 , where the first end face is the end face on a side, facing the first end cap  300 , of the first folded edge  110 . A movement of the force-exerting key  510  causes the pushing piece  520  to move for driving the shade  100  to slide relative to the mounting base  200  and away from the first end cap  300 . Specifically, the pushing piece  520  may abut against any one of the first folded edges  110 , and may also abut against both of the two first folded edges  110  as long as it can act on the first folded edge  110 . Further, as described above, since the shade  100  needs to be moved away from the first end cap  300 , the pushing piece  520  needs to abut against the end face on the side, facing the first end cap  300 , of the first folded edge  110 . In this way, the movement of the pushing piece  520  can cause the shade  100  to move away from the first end cap  300 . 
     In the luminaire disclosed in this example of the present disclosure, the pushing piece  520  abuts against the first end face of at least one of the first folded edges  110 , and the first end face is the end face on the side, facing the first end cap  300 , of the first folded edge  110 . Since the force-exerting key  510  connected to the pushing piece  520  partially extends out of the mounting base  200  and the force-exerting key  510  is in sliding fit with the sidewall of the mounting base  200 , the force-exerting key  510  can be operated outside the mounting base  200  to move for driving the pushing piece  520  such that the shade  100  can be pushed to slide relative to the mounting base  200  and away from the first end cap  300 . The sliding of the shade  100  relative to the mounting base  200  is achieved by means of the relative sliding between the first folded edges  110  and the second folded edges  210 . When the shade  100  is moved away from the first end cap  300 , a gap is formed between the shade  100  and the first end cap  300 , and the shade  100  may be captured from the gap. Since the shade  100  is flexible to a certain extent, the shade  100  may be taken out of the mounting base  200  with a small force. Thus, detachment of the entire luminaire is avoided. Compared with the way where the shade can be removed only after the end caps are removed in the prior art, the operation is simpler and more convenient with higher detaching efficiency. 
     Specifically, the mounting base  200  may be in a plurality of connection relationships with the first end cap  300  and the second end cap  400 . For example, usually, the mounting base  200  may be connected to the first end cap  300  (the second end cap  400 ) by means of a threaded fastener. In a preferred solution, a positioning portion  610  may be disposed in each of the first end cap  300  and the second end cap  400 . A first limit space  310  is formed between the positioning portion  610  and a sidewall of the first end cap  300 , while a second limit space  410  is formed between the positioning portion  610  and a sidewall of the second end cap  400 . The two ends of the mounting base  200  are in limiting fit with the first limit space  310  and the second limit space  410 , respectively. Specifically, the first limit space  310  and the second limit space  410  are capable of fixing and limiting the mounting base  200  to realize a fixed connection between the mounting base  200  and the first end cap  300  and a fixed connection between the mounting base  200  and the second end cap  400 . Thus, waterproofing and dust prevention of the mounting base  200  are realized by means of the first end cap  300  and the second end cap  400 . 
     As a matter of course, the positioning portion  610  may come in a plurality of structure types. For example, as shown in  FIG.  4    to  FIG.  6   , the positioning portion  610  may be a positioning rib disposed near the sidewall of the first end cap  300  (the second end cap  400 ). The positioning rib may be a plurality of small-sized positioning rib arranged at intervals, and may also be one ring-shaped continuous positioning rib. A clamping groove (which is one specific form of the first limit space  310  and the second limit space  410 ) is formed between the positioning rib and the sidewall of the first end cap  300  (the second end cap  400 ). The mounting base  200  is in plug-in fit with the clamping groove, so that the mounting base  200  is in limiting stationary fit with the first end cap  300  (the second end cap  400 ). In another implementation, the positioning portion  610  may also be a positioning baffle, a positioning block, etc, as long as it can constrain, i.e., limit and fix, the mounting base  200 . 
     Since the luminaire is required to have good dustproof and waterproof properties and even required to reach IP44 protection grade, higher requirements are imposed on existing luminaires. To better seal the shade  100  with the first end cap  300  and the second end cap  400  and then improve the dustproof and waterproof properties, in a more preferred solution, two ends of the shade  100  may be in limiting fit with the first limit space  310  and the second limit space  410 , respectively, and a moving gap  411  is formed between the shade  100  and the second end cap  400  within the second limit space  410 . Since the shade  100  is in limiting fit with the first limit space  310  and the second limit space  410 , a tighter connection relationship is created, and good dustproof and waterproof effects may be achieved. 
     In this case, when the shade pushing assembly  500  acts on the first folded edges  110 , the shade  100  is moved away from the first end cap  300  until an appropriate detaching space is formed between the shade  100  and the first end cap  300  such that the shade  100  can be taken out of the mounting base  200 . As a matter of course, a range within which the force-exerting key  510  is slidable may be limited to limit a moving distance of the shade  100 , which may be adaptively adjusted according to the overall size of the luminaire. 
     When the shade  100  slides away from the first end cap  300  relative to the mounting base  200 , the shade  100 , guided by the first folded edges  110  and the second folded edges  210 , will be limited by the second end cap  400 . The second end cap  400  will be pushed by the shade  100  off the mounting base  200 . Alternatively, in the case that the mounting base  200  is also in fixed connection with the second end cap  400 , the shade  100 , limited by the second end cap  400 , cannot be moved away from the first end cap  300  in this case. Consequently, the detaching space cannot be formed between the shade  100  and the first end cap  300 . On this basis, referring to FIG.  7  and  FIG.  8   , when assembling the shade  100  and the second end cap  400 , a moving gap  411  may be formed between the end portion of the shade  100  and the second end cap  400  within the second limit space  410 . In this way, when the shade  100  is moved away from the first end cap  300 , the shade  100  moves within the moving gap  411  without direct contact with the second end cap  400 . Thus, the shade  100  will not be limited by the second end cap  400 , and finally, the detaching space can be formed between the shade  100  and the first end cap  300 . From the foregoing description, the size of the detaching space is directly affected by the moving gap  411 . Therefore, during assembling, the size of the moving gap  411  may be pre-adjusted according to the desired size of the detaching space. As a matter of course, this example of the present disclosure has no limitation on the specific connection relationship between the shade  100  and the first end cap  300  and the second end cap  400 . In addition to the connection relationship in which the shade  100  is located in the first limit space  310  and the second limit space  410 , the connection relationship may also be in other forms. For example, the first end cap  300  and the second end cap  400  may tightly abut against the shade  100 , and the shade  100  may be pushed by the shade pushing assembly  500  to be plugged in the second limit space  410 . 
     In the example of the present disclosure, the sliding fit relationship between the force-exerting key  510  and the mounting base  200  may come in a plurality of types. For example, the force-exerting key  510  may be in sliding fit with the sidewall of the mounting base  200  by means of balls. In a specific implementation, a sliding guide groove may be formed in the sidewall of the mounting base  200 , and the force-exerting key  510  is in sliding fit with the sliding guide groove. The sliding guide groove is simple in structure and convenient to form. The sliding guide groove may be formed in the sidewall, close to the pushing piece  520 , of the mounting base  200 . In this case, the force-exerting key  510  has a smaller length size, and the operation convenience of the force-exerting key  510  is improved. 
     In the example of the present disclosure, the first folded edges  110  and the second folded edges  210  may be folded in a plurality of directions, which will not be limited herein. In a specific implementation, as shown in  FIG.  3    and  FIG.  4   , the first folded edges  110  may be folded away from the accommodating cavity, and the second folded edges  210  may be folded toward the accommodating cavity. In this way, the first folded edges  110  and the second folded edges  210  are folded in opposite directions and may be in snap-fit with each other, thereby realizing the fixation of the shade  100  and the mounting base  200 . Meanwhile, the first folded edges  110  are located on top of the second folded edges  210 , and when water and dust enter the gap between the shade  100  and the mounting base  200 , the second folded edges  210  will play a first role in stopping and the first folded edges  110  will play a second role in stopping. Thus, water and dust can be effectively prevented from entering the accommodating cavity. 
     As a matter of course, the first folded edges  110  and the second folded edges  210  prop against well. In this case, there is friction between the first folded edges  110  and the second folded edges  210 , which can avoid easy relative slippage between the shade  100  and the mounting base  200  and ensure better stability of connection between the shade  100  and the mounting base  200 . 
     In another implementation, the first folded edges  110  may be folded toward the accommodating cavity, and the second folded edges  210  may be folded away from the accommodating cavity. In this case, the first folded edges  110  and the second folded edges  210  are also folded in opposite directions and may also be in snap-fit with each other, thereby realizing the fixation of the shade  100  and the mounting base  200 . It needs to be noted that the example of the present disclosure has no limitation on the specific folding angle of the first folded edges  110  and the second folded edges  210  as long as the first folded edges  110  and the second folded edges  210  can be in snap-fit with each other. 
     It is inevitable that there will be a mounting gap between every two of the shade  100 , the mounting base  200  and the first end cap  300  (the second end cap  400 ). Especially, if there is a manufacturing segment gap between these structures during manufacturing, the manufacturing segment gap will cause the mounting gap to further expand at the joint, thereby affecting the dustproof and waterproof properties of the luminaire. On this basis, in a more preferred solution, as shown in  FIG.  4    and  FIG.  5   , the shade  100  may have two opposite enclosing portions  120 . The first folded edges  110  are formed at edges of each enclosing portion  120 . Each enclosing portion  120  is in a bent shape and is bent toward the accommodating cavity. Specifically, the enclosing portions  120  each have a certain height and may prevent impurities such as water and dust from accumulation in the gap between the shade  100  and the mounting base  200 . Thus, the amount of entering impurities can be reduced. 
     Since the first folded edges  110  and the second folded edges  210  can only prevent impurities such as water and dust from entering the accommodating cavity through the gap between the shade  100  and the mounting base  200 , but cannot prevent the impurities from entering the accommodating cavity through the gaps between the shade  100  and the mounting base  200  and the first end cap  300  (the second end cap  400 ). On this basis, in a further implementation, a stop portion  620  may be disposed in each of the first end cap  300  and the second end cap  400 , and the stop portion  620  and the corresponding enclosing portion  120  form an escape space  121 . A first waterproof piece  630  is disposed in the escape space  121 . Specifically, the escape space  121  provides a mounting space for the first waterproof piece  630 . Meanwhile, the enclosing portion  120  and the stop portion  620  play a role in limiting the first waterproof piece  630 , which may prevent disengagement of the first waterproof piece  630  from the joint of the shade  100 , the mounting base  200  and the first end cap  300  (the second end cap  400 ) and thus effectively ensure the dustproof and waterproof properties of the luminaire. In the example of the present disclosure, the first waterproof piece  630  may come in a plurality of types, such as waterproof foam and waterproof rubber. Meanwhile, the stop portion  620  may come in a plurality of shapes, such as a stop block and a limiting rib. A support baffle is preferred in the example of the present disclosure. 
     To further improve the waterproof performance of the luminaire, in a preferred solution, a shoulder  640  is formed inward on each of the sidewall of the first end cap  300  and the sidewall of the second end cap  400 , and a second waterproof piece  220  is disposed on the shoulder  640 . The mounting base  200  holds down the second waterproof piece  220  on the corresponding shoulder  640 . In other words, the second waterproof piece  220  is located between the mounting base  200  and the shoulder  640 . Thus, the second waterproof piece  220  is held down and fixed by the mounting base  200  and the shoulder  640 , thereby achieving the dustproof and waterproof effects. It needs to be noted that in the implementation of the example of the present disclosure where the shade  100  is in plug-in fit with the first limit space  310  (the second limit space  410 ), the shade  100  also plays a role in holding down and fixing the second waterproof piece  220 . In the example of the present disclosure, the second waterproof piece  220  may come in a plurality of types, such as waterproof foam and waterproof rubber. Glands may also be disposed on the end faces of the first end cap  300  and the second end cap  400  to further optimize the waterproof performance of the first end cap  300  and the second end cap  400 . 
     Usually, by operating the shade pushing assembly  500 , finally, the shade  100  may be indirectly pushed to slide relative to the mounting base  200  and away from the first end cap  300 . To avoid the formation of detaching space between the shade  100  and the first end cap  300  due to misoperation in use, in a preferred solution, the force-exerting key  510  may be connected to the pushing piece  520  by means of a threaded fastener. Specifically, when using the luminaire, the threaded fastener has been screwed down. In this case, the force-exerting key  510  and the pushing piece  520  are both in fixed connection with the mounting base  200 , and therefore, the shade pushing assembly  500  is in an inoperable state. When detaching the luminaire, the threaded fastener is screwed off. In this case, a gap is formed between the mounting base  200  and each of the force-exerting key  510  and the pushing piece  520 , and relative sliding is allowed. Therefore, the shade pushing assembly  500  is in an operable state, and the shade  100  may be pushed to slide relative to the mounting base  200  and away from the first end cap  300 , so that the detaching space is formed between the shade  100  and the first end cap  300 . It needs to be noted that the threaded fastener may be a screw, a bolt, etc. As a matter of course, the example of the present disclosure has no limitation on the specific connection relationship between the force-exerting key  510  and the pushing piece  520 . For example, the force-exerting key  510  and the pushing piece  520  may also be integrally molded. 
     To ensure good mounting stability and sliding smoothness of the pushing piece  520  and the effectiveness of acting of a third folded edge  521  on the first end face, in a preferred solution, the pushing piece  520  may be plate-like to fit on at least a portion of the sidewall of the mounting base ( 200 ). Specifically, the plate-like pushing piece  520  may tightly fit on the sidewall of the mounting base  200 , and dislocation of the pushing piece  520  may thus be avoided. Meanwhile, when the force-exerting key  510  slides relative to the mounting base  200 , the pushing piece  520  fits on the sidewall of the mounting base  200  to realize smoother sliding. 
     The pushing piece  520  has a third folded edge  521 , and the third folded edge  521  is folded to abut against the first end face. Specifically, the first end face has a small size, and the third folded edge  521  is plate-like (the plate-like third folded edge  521  has a larger area) is more prone to contact with the first end face, thereby avoiding dislocation therebetween. As a result, it can be ensured that the third folded edge  521  smoothly acts on the first end face. 
     To simplify the structure and ensure the effectiveness of acting of the shade pushing assembly  500  on the shade  100 , in a preferred solution, the pushing piece  520  abuts against one of the two first end faces that is closer to the force-exerting key  510 . Since there are two first folded edges  110  opposite to each other, there are two first end faces. The structure may be inevitably complicated for realizing abutting of the first end face further from the force-exerting key  510  against the pushing piece  520 , and the effectiveness of interaction therebetween will be weakened. Therefore, it is preferred that the pushing piece  520  abuts against the first end face closer to the force-exerting key  510 . 
     Referring to  FIG.  3    and  FIG.  6   , a clamping projection  650  is formed on each of the sidewall of the first end cap  300  and the sidewall of the second end cap  400 , while a clamping recess  230  is formed in the sidewall of the mounting base  200 , and each clamping projection  650  is in clamping fit with the clamping recess  230 . Specifically, when the clamping projection  650  is in clamping fit with the clamping recess  230 , stationary fit between the mounting base  200  and the first end cap  300  (the second end cap  400 ) is realized, thereby avoiding easy disengagement. The sidewall of the first end cap  300  (the second end cap  400 ) protrudes inwards to form a clamping projection  650 . A surface, facing the mounting base  200 , of the clamping projection  650  may be an inclined surface, which is conducive to the sliding of the clamping projection  650  into the clamping recess  230  and more convenient for assembling. The clamping recess  230  may be structured as a groove or a limiting hole. As a matter of course, the example of the present disclosure has no limitation on the specific types of the clamping projection  650  and the clamping recess  230 . 
     In the example of the present disclosure, a drainage hole  660  may be formed in each of the bottom of the first end cap  300  and the bottom of the second end cap  400 . The drainage hole  660  is communicated with the accommodating cavity. Thus, the luminaire is allowed to cope with the potential risk of water present in the luminaire. Meanwhile, when mounting the luminaire, water will flow to the lower end due to a height difference between the two ends of the luminaire, and finally is discharged through the drainage hole  660  in the lower end, thereby protecting the luminaire. 
     For the sake of better appearance of the luminaire, in a preferred solution, the mounting base  200  may be a metal part. With the development of society, users have higher requirements on the quality of life. Due to the limitations of manufacturing process cost and mold investment, existing luminaires are still manufactured by processes such as extrusion, resulting in obvious plastic appearance of the luminaires and thus failing to meet the requirements of users. In the example of the present disclosure, the mounting base  200  formed by a metal part can make the luminaire have prominent metal texture, thereby significantly improving the appearance of the entire luminaire and making the luminaire product look like better. 
     Meanwhile, as a metal part, the mounting base  200  will have excellent heat dissipation performance. Moreover, the strength of the mounting base  200  will be improved significantly, which is conducive to providing better support for other components of the luminaire. As a matter of course, the metal part of the mounting base  200  may come in a plurality of types, such as an iron part, an aluminum part and a steel part. The example of the present disclosure has no limitation on the specific metal part type of the mounting base  200 . 
     The luminaire disclosed in the example of the present disclosure may be a ceiling lamp, a wall lamp, etc. The example of the present disclosure has no limitation on the specific type of the luminaire. In the example of the present disclosure, the lamp may be preferably a ceiling lamp. A mounting hole  240  and a wiring hole  250  are formed in a bottom surface of the mounting base  200 . Referring to  FIG.  9   , in a preferred solution, a third waterproof piece  670  may be disposed around each of mounting hole  240  and the wiring hole  250 . Specifically, the third waterproof pieces  670  are capable of achieving the waterproof effect around the mounting hole  240  and the wiring hole  250  on the one hand; on the other hand, the waterproof material typically has certain flexibility and thus is capable of buffering destructive action such as squeezing and collision. During the mounting of the ceiling lamp, the third waterproof pieces  670  are capable of protecting the mounting hole  240  and the wiring hole  250  to a certain extent, thereby avoiding damage to the mounting hole  240  and the wiring hole  250 . In the example of the present disclosure, the third waterproof piece  670  may also come in a plurality of types, such as waterproof foam and waterproof rubber. 
     The technical solutions adopted by the present disclosure can achieve following beneficial effects. 
     In the luminaire disclosed in an example of the present disclosure, a pushing piece abuts against a first end face of at least one of first folded edges, and the first end face is the end face on a side, facing a first end cap, of the first folded edge. Since the force-exerting key portion connected to the pushing piece partially extends out of the mounting base and the force-exerting key is in sliding fit with the sidewall of the mounting base, the force-exerting key can be operated outside the mounting base to move for driving the pushing piece such that the shade can be pushed to slide relative to the mounting base and away from the first end cap. The sliding of the shade relative to the mounting base is achieved by means of the relative sliding between the first folded edges and the second folded edges. When the shade is moved away from the first end cap, a gap is formed between the shade and the first end cap, and the shade may be captured from the gap. Since the shade is flexible to a certain extent, the shade may be taken out of the mounting base with a small force. Thus, detachment of the entire luminaire is avoided. Compared with the way where the shade can be removed only after the end caps are removed in the prior art, the operation is simpler and more convenient with higher detaching efficiency. 
     The foregoing description of each example of the present disclosure focuses on the differences from other example. Different optimized features of various examples can be combined to derive a better example as long as they do not contradict each other, which will not be reiterated here in consideration of simplicity of wording. 
     The foregoing is merely illustrative of the examples of the present disclosure and is not intended to limit the present disclosure. Various changes and modifications can be made to the present disclosure by those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and scope of the present disclosure should be included within the protection scope of the present disclosure.