Patent Publication Number: US-2021175574-A1

Title: Blower

Description:
CROSS-REFERENCE TO RELATED INVENTIONS 
     This invention claims the priority of CN invention Serial No. 201911247753.1, filed on Dec. 9, 2019, the disclosures of which are hereby incorporated by reference in their entirety. 
     TECHNICAL FIELD 
     The invention relates to the field of garden tools, in particular to a blower equipped with a battery pack supporting member. 
     BACKGROUND ART 
     Hand-held garden tools, such as trimmer, hedge trimmer, chainsaw, blower, etc., usually use a detachable battery pack installed on main body as a power source. But battery pack supporting member and main body of the existing hand-held blowers are usually integrated, so only matching battery pack can be installed on a blower. When the blower needs to increase power and running time, it is necessary to use a single battery pack that provides high power but with a large structural size or a dual battery packs in series or parallel installed on the blower, but the existing battery pack supporting member cannot meet this requirement. 
     Therefore, it is necessary to provide a blower to solve the above problems. 
     SUMMARY OF INVENTION 
     The object of the present invention is to provide a blower which is convenient for assembling different battery packs. 
     In order to achieve the above object, the present invention adopts the following technical solution. A blower includes: a main body extending in a longitudinal direction, a battery pack supporting member arranged on the main body, and a battery pack arranged on the battery pack supporting member, the battery pack supporting member is separable with respect to the main body, which includes a body forming a battery pack receiving portion and a mounting portion being coupled with the main body, the battery pack supporting member and the battery pack are detachably coupled to the main body. 
     As a further improved technical solution of the present invention, the mounting portion includes a clip portion, and the main body includes a matching portion being coupled to the clip portion, and the clip portion is engaged with the matching portion. 
     As a further improved technical solution of the present invention, the battery pack supporting member further includes a seat for matching with the battery pack, and the seat is disposed in the battery pack receiving portion. 
     As a further improved technical solution of the present invention, the battery pack receiving portion future includes a pair of guide rails being parallel to each other, and the battery pack includes slide grooves for matching with the pair of guide rails, and the pair of guide rails are slidable engaging with and the slide grooves. 
     As a further improved technical solution of the present invention, the battery pack receiving portion is located on a longitudinal axis of the main body, and the pair of guide rails are symmetrical relative to the longitudinal axis. 
     As a further improved technical solution of the present invention, the battery pack receiving portion includes two sub-cavities, the two sub-cavities are symmetrically disposed on both two sides of the longitudinal axis of the main body, and each sub-cavity is assembled with the battery pack. 
     As a further improved technical solution of the present invention, the battery pack supporting member includes a first portion, a second portion, and a third portion that are engaged with each other, the first portion and the second portion are jointly mounted to the main body, the first portion and the third portion constitute one sub-cavity, the second portion and the third portion constitute another sub-cavity. 
     As a further improved technical solution of the present invention, the two sub-cavities are disposed on opposite sides of the longitudinal axis of the main body, and each sub-cavity. 
     As a further improved technical solution of the present invention, the mounting portion includes an auxiliary bolt, the battery pack supporting member is disposed at a rear end of the main body, and the battery pack and the battery pack supporting member are assembled together in a vertical direction, the battery pack receiving portion comprises a first opening for assembling the battery pack and a second opening for exposing most of the battery pack. 
     As a further improved technical solution of the present invention, the blower includes a holding portion extending upward from the main body for griping, and the battery pack supporting member is disposed below and behind the holding portion. 
     It can be known from the above technical solutions that the blower of the present invention clamps the battery pack supporting member to the main body. The battery pack supporting member of different structures can be installed on the main body of the blower to install a single battery pack or a dual battery pack, which is convenient for switching between the single battery pack and dual battery pack. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a perspective view of the blower according to the present invention. 
         FIG. 2  is a perspective view of the main body of the blower in  FIG. 1 . 
         FIG. 3  is an enlarged view of the circled part in  FIG. 2 . 
         FIG. 4  is a perspective view of the battery pack supporting member in  FIG. 1 . 
         FIG. 5  is a perspective view of the battery pack supporting member in  FIG. 4  in another direction. 
         FIG. 6  is an exploded view of the battery pack supporting member in  FIG. 4 . 
         FIG. 7  is a perspective view of the blower according to another embodiment of the present invention. 
         FIG. 8  is a perspective view of the battery pack supporting member in  FIG. 7 . 
         FIG. 9  is an exploded view of the battery pack supporting member in  FIG. 8 . 
     
    
    
     DESCRIPTION OF EMBODIMENT 
     In order to make the objectives, technical solutions, and advantages of the present invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. 
     The invention provides a blower, includes a main body extending in a longitudinal direction, a battery pack supporting member disposed on the main body, and a battery pack disposed on the battery pack supporting member. 
     For the convenience of description, please refer to  FIG. 1  and  FIG. 2 . The technical solution of the present invention will be described below with a blower  100 . In other embodiments, the blower  100  may be replaced with other hand-held garden tools such as hedge trimmer, chainsaw, etc., which is not limited herein. The blower  100  includes a main body  1 , a battery pack supporting member  2  disposed on the main body  1 , and a battery pack (not shown) disposed on the battery pack supporting member  2 . 
     The main body  1  includes a left housing  11  and a right housing  12  being symmetrically arranged with each other. A symmetrical plane passing through the longitudinal axis is formed between the left housing  11  and the right housing  12 . The left housing  11  and the right housing  12  extend upward to form a holding portion  13  for griping. A receiving cavity (not shown) for receiving the fan assembly is disposed in the main body  1 . The battery pack supporting member  2  is disposed at a rear end of the main body  1 , and is preferably disposed below and behind the holding portion  13  so that the battery pack does not prevent the operator from holding after the battery pack is installed. In this embodiment, the battery pack supporting member  2  is located on the longitudinal axis of the main body  1 . And when the battery pack is connected to the blower  100 , the blower  100  as a whole keeps the center of gravity in balance. In other embodiments, the installation position of the battery pack supporting member  2  may be adjusted according to the types of the blower, which is not limited herein. 
     The battery pack supporting member  2  and the main body  1  being a split type configuration. Refer to  FIG. 4  to  FIG. 6 , the battery pack supporting member  2  includes a main portion  21  of battery pack receiving portion  24 , a mounting portion being coupled with the main body  1 , and an seat  22  being disposed in the battery pack receiving portion  24 . The battery pack and the battery pack supporting member  2  are detachably coupled to the main body  1 . When the battery pack supporting member  2  is mounted on the main body  1 , the seat  22  is electrically connected to a circuit board disposed in the main body, so as to provide power to the fan assembly of the blower when the battery pack is inserted into the battery pack supporting member  2 . The battery pack receiving portion  24  includes a first opening  241  for assembling the battery pack and a second opening  242  for exposing most of the battery pack. Since most of the battery pack is exposed to the air environment during working, it is beneficial to the heat dissipation of the battery pack. 
     Please refer to  FIG. 5  and  FIG. 6 , preferably, the main portion  21  includes a first portion  211  and a second portion  212 , and they are engaged and secured by screws. One side of the first portion  211  and the second portion  212  as a whole being mounted on the main body  1 , and the other side together being the battery pack receiving portion  24 . Please refer to  FIG. 2 ,  FIG. 3  and  FIG. 5 , the mounting portion includes a clip portion  25 , a matching portion  14  on the main body  1  being coupled to the clip portion  25 . Specifically, the clip portion  25  is T-shaped. The clip portion  25  includes a left snap portion  251  disposed on the first portion  211  and a right snap portion  252  disposed on the second portion  212 . When the first portion  211  is engaged with the second portion  212 , the left snap portion  251  engaged with the right snap portion  252  being a whole, and a convex edge is disposed on the side where the left snap portion  251  and the right snap portion  252  are in contact. 
     The matching portion  14  is a slot opened on the main body  1 . Specifically, the matching portion  14  includes a half slot  141  opened on the left housing  11  and a half slot  142  opened on the right housing  12 . There is a gap between the half slot  141  and the half slot  142 . When the clip portion  25  is engaged with the matching portion  14 , the convex edge is located in the gap to limit the clip portion  25 . The number of the clip portions  25  is preferably three and they are arranged parallel to each other along the vertical direction. Of course, in other embodiments, the clip portion  25  and the matching portion  14  may be disposed as other structures being engaged with each other, which is not limited herein. 
     The battery pack and the battery pack supporting member  2  are assembled in a vertical direction perpendicular to the longitudinal axis. Preferably, the mounting portion further includes a protruding rib  26  disposed along the outline thereof, and the protruding rib  26  extends to the bottom of the battery pack supporting member  2 . The main body  1  is disposed a recess (not labeled) matching with the protruding rib  26 . When the clip portion  25  and the matching portion  14  are engaged, the protruding rib  26  engages with the recess, so that the battery pack supporting member  2  and the main body  1  are stably combined, which ensured the stable connection of the battery pack when the blower  100  works. Preferably, the mounting portion further includes an auxiliary bolt to firmly fix the battery pack supporting member  2  to the main body  1 . 
     As shown in  FIG. 4 , the first opening  241  is located at the top of the battery pack receiving portion  24 . A guide rail  27  is further disposed in the battery pack receiving portion  24 . The guide rail  27  includes two guide rails being parallel with each other. The battery pack includes a slide groove that matches with the guide rail  27 , and the guide rail  27  slides up and down along the slide groove. That is, the battery pack is sliding from the first opening  241  to the battery pack supporting member  2  in a vertical downward direction. The power supply of the battery pack plugged into the seat  22  to provide power to the power circuit of the main body  1 . When the battery pack needs to be removed, the battery pack can be slid from the bottom to the top, so that the battery pack can be easily removed or installed. Preferably, the guide rails  27  are symmetrically arranged with respect to the longitudinal axis of the main body  1 . 
     Please refer to  FIG. 7  to  FIG. 9 , which provides a blower according to another embodiment of the present invention. The main body  1  is the same with the main body  1  in the above embodiment, which will not be described in detail herein. The battery pack supporting member  2 ′ includes a main portion  21 ′ of battery pack receiving portion for receiving a battery pack, a mounting portion, and a seat disposed in the battery pack receiving portion. The battery pack receiving portion includes two sub-cavities  25 ′,  26 ′, and the two sub-cavities  25 ′,  26 ′ are symmetrically disposed on two sides of the longitudinal axis on the main body  1  and are respectively assembled with the battery pack (not shown). Both the first sub-cavity  25  and the second sub-cavity  26 ′ contain a seat  22 ′,  23 ′ located at a lower portion thereof and a guide rail for assembling the battery pack. The engagement of the battery pack receiving portion with the battery pack is the same as the embodiment above, which is not described herein. According to the requirements of use, the two battery packs can be installed or removed separately. 
     In this embodiment, the main portion  21 ′ includes a first portion  211 ′, a second portion  212 ′, and a third portion  213 ′ that are engaged with each other, and they are secured together by screws. The first portion  211 ′ and the second portion  212 ′ are mounted on the main body  1 . The first portion  211 ′ and the third portion  213 ′ being a sub-cavity  25 ′, and the second portion  212 ′ and the third portion  213 ′ being a sub-cavity  26 ′. In this embodiment, the structure and shape of a mounting portion are completely the same with the mounting portion in the above embodiment, and the matching of the mounting portion and the main body  1  is also the same with that in the above embodiment, which are not described herein. A first opening  251 ′ for assembling the battery pack and a second opening  252 ′ for exposing most of the battery pack were disposed on the sub-cavities  25 ′,  26 ′. It should be noted that, in the present invention, the main portions  21 ,  21 ′ being a splice configuration. In other embodiment, the main portions  21 ,  21 ′ can also be an integral configuration, which is not limited herein. 
     In the present invention, when the battery pack is installed on the battery pack supporting members  2 ,  2 ′, most of the battery pack is exposed to the external environment, which is beneficial to the heat dissipation of the battery pack. The specific shape of the battery pack supporting members  2 ,  2 ′ and the number of battery packs are not limited, and it is only necessary to ensure that the battery pack supporting members have a mounting portion with uniform structure. 
     In summary, according to the blower of the present invention, the battery pack supporting member is engaged with the main body, and the same main body of the blower can be installed with different structures of battery pack supporting members for installing single battery pack or dual battery packs, which is convenient for switching between the single battery pack and dual battery pack. The battery pack supporting member of the present invention can be installed on different main body of blowers to increase the versatility of parts and reduce mold costs. In addition, the structure of the battery pack supporting member of the present invention is simple, making the overall configuration of the blower more compact and improving the comfort of the blower. 
     The above embodiment is only used to illustrate the present invention and not to limit the technical solutions described in the present invention. The understanding of this specification should be based on those skilled in the art, although the present invention has been described in detail with reference to the above embodiment. However, those skilled in the art should understand that those skilled in the art can still modify or equivalently replace the present invention, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.