Charger and charging system

Abstract

The invention provides a charger and a charging system. The charger comprises a shell, a first isolation piece and a charger circuit board assembly, and the shell is provided with a first air opening; the first separator is arranged in the shell, the shell comprises an upper space and a lower space which are divided by the first separator, and the first air port is located in the upper space; the charger circuit board assembly is arranged in the lower space, and the first isolation piece is provided with a drainage hole communicated with the outside of the shell and an inclined flow guide structure. The first air opening can be formed in the top of the charger, so that the charger can supply air to the top, and the good performance of heat dissipation from the top of the charger is guaranteed; the charger circuit board assembly is arranged in the lower space by arranging the first isolation piece, so that even if water enters the charger from the first air port, the water is blocked by the first isolation piece and then is guided to the drainage hole to be drained through the inclined flow guide structure; therefore, key components on the circuit board assembly of the charger cannot lose efficacy due to the entering moisture.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of electric tools, and in particular to a charger and a charging system. Background Art

[0002] Most of the multi-port chargers in the power tool industry have built-in fans for heat dissipation. In chargers with built-in fans, part of the built-in fans are only used to dissipate heat for the internal circuit of the charger, and the other part can dissipate heat for the battery pack. The charger has an air inlet at the connection with the battery pack, which can suck in the hot air in the battery pack to help the battery pack dissipate heat. At present, there are few products that dissipate heat for the battery pack through the built-in fan of the charger, and the fan and the fan outlet are arranged on the side of the charger. There are many disadvantages in the layout of this fan outlet. For example, on the one hand, the internal air duct of the fan outlet surface must be led to the fan outlet on the side, which is difficult to design and leads to a complex structure; on the other hand, the side layout requires the hot air to be discharged from the bottom, and discharging the hot air from the bottom violates the law of hot air flowing upward, resulting in a decrease in the heat dissipation effect. However, if a heat dissipation outlet is set on the top of the charger, there will be a problem that moisture will enter the charger from the top outlet, causing the key components on the circuit board in the charger to fail. Therefore, how to waterproof is also one of the issues to be considered. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a charger and a charging system, which are intended to ensure good heat dissipation from the top of the charger and prevent moisture from entering the charger, thereby causing failure of key components on the circuit board in the charger.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a charger, comprising:

[0005] A housing, wherein the housing is provided with a first air outlet;

[0006] a first isolating member, the first isolating member being disposed in the housing and located at a lower side of the first air outlet, the housing comprising an upper space and a lower space divided by the first isolating member, the first air outlet being located in the upper space;

[0007] A charger circuit board assembly is arranged in the lower space, and the first isolation piece has a drainage hole connected to the outside of the shell and an inclined guide structure, so that the liquid flows through the inclined guide structure to the drainage hole.

[0008] Preferably, the inclined guide structure includes a left area, a middle area and a right area which are divided upward from the upper surface of the first isolation member from left to right, the left area is gradually inclined downward from left to right, the right area is gradually inclined downward from right to left, and the middle area is provided with the drainage hole.

[0009] Preferably, the inclined guide structure includes a front area and a rear area divided upward from the upper surface of the first isolation member in the front and rear directions, the front area is arranged to be gradually inclined downward from the back to the front, and the rear area is arranged to be gradually inclined downward from the front to the back, and the drainage holes are provided at positions of the front area and the rear area far away from each other.

[0010] Preferably, the shell includes a shell bottom wall, and the charger also includes a second isolation element located in the lower space, one end of the second isolation element abuts the first isolation member, and the other end abuts the shell bottom wall, and the second isolation element is circumferentially arranged outside the charger circuit board assembly.

[0011] Preferably, a water leakage hole is formed on the bottom wall of the shell, and the water leakage hole is provided on a side of the second isolation element away from the charger circuit board assembly and / or on a side close to the charger circuit board assembly.

[0012] Preferably, the shell body also includes a shell side wall, and the upper surface of the shell bottom wall has an annular slope area circumferentially arranged outside the second isolation element, and the annular slope area is gradually inclined downward in the direction from the second isolation element to the shell side wall, and the water leakage hole is arranged at a position of the annular slope area close to the shell side wall.

[0013] Preferably, the upper surface of the bottom wall of the shell has an inner area located on the side of the second isolation element close to the charger circuit board assembly, and the inner area is divided into two inner sub-areas in a direction perpendicular to the charger circuit board assembly. The two inner sub-areas are gradually inclined downward in a direction away from each other, and the water leakage holes are provided at positions of the two inner sub-areas away from each other.

[0014] Preferably, the shell is provided with a second air inlet and a second air outlet located in the lower space, the second isolation element has a first connecting hole adjacent to the second air inlet, the first connecting hole is connected to the second air inlet and is staggered in the vertical direction and / or horizontally, and the second isolation element has a second connecting hole adjacent to the second air outlet, the second connecting hole is connected to the second air outlet and is staggered in the vertical direction and / or horizontally.

[0015] Preferably, the lower space has an air duct connected to the second isolation element and a second heat dissipation fan installed on the air duct, and the second heat dissipation fan is adjacent to the second air outlet.

[0016] Preferably, a sealing ring is provided between the shell bottom wall and the lower end of the second isolation element.

[0017] Preferably, the shell includes a shell top wall, the first air vent includes a first air outlet arranged on the shell top wall, and the shell has a shielding structure protruding from the shell top wall, and the shielding structure covers the first air outlet.

[0018] Preferably, the shell body further has an inclined portion inclined from an end surface of the shell top wall, and the first air outlet is at least partially located on the inclined portion.

[0019] Preferably, the shell further includes a first cooling fan installed in the upper space, and the first cooling fan is located below the first air outlet.

[0020] Preferably, the shell body includes a shell side wall, the shell side wall is provided with a battery pack mounting position for installing a battery pack, the first air outlet includes a first air inlet adjacent to the battery pack mounting position, when the battery pack is installed at the battery pack mounting position, the first air inlet is connected to the battery pack air outlet of the battery pack.

[0021] In order to achieve the above object, the present invention further provides a charging system, comprising:

[0022] A charger, wherein the charger is the above-mentioned charger;

[0023] A battery pack, when the battery pack is disposed at the battery pack mounting position of the charger, the battery pack is electrically connected to the charger interface of the charger.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The first air vent of the charger of the present invention can be arranged at the top of the charger, so that the charger has top air outlet, thereby avoiding many disadvantages caused by the air vent being arranged on the side of the charger and ensuring good performance of the charger in dissipating heat from the top; and by arranging a first insulating member inside the shell and at the lower side of the first air vent to divide a lower space at the lower side of the first insulating member, and arranging the charger circuit board assembly in the lower space, even if moisture enters the charger from the first air vent, it is blocked by the first insulating member and then diverted to the drainage hole by the inclined guide structure of the first insulating member to be discharged out of the charger. In this way, the moisture entering the charger cannot cause key components on the charger circuit board assembly to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0027] Figure 1 A schematic diagram of the structure of a charger in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 One of the cross-sectional views of the middle charger;

[0029] Figure 3 for Figure 1 The second cross-sectional view of the middle charger;

[0030] Figure 4 for Figure 1 The third cross-sectional view of the middle charger;

[0031] Figure 5 for Figure 1 Schematic diagram of the internal structure of the charger;

[0032] Figure 6 for Figure 5 One of the structural diagrams of the middle partition structure;

[0033] Figure 7 for Figure 5 The second structural diagram of the middle partition structure;

[0034] Figure 8 It is a structural schematic diagram of a charging system in an embodiment of the present invention;

[0035] Fig. 9 for Figure 8 Schematic diagram of the battery pack structure.

[0036] Description of the accompanying drawings of the present invention:

[0037] Charging system 1000, charger 100, shell 110, first air port 111, first air inlet 111a, first air outlet 111b, upper space 112a, lower space 112b, inner space 1121, outer space 1122, shell bottom wall 113, annular inclined surface area 1131, inner area 1132, inner sub-area 1133, front inner sub-area 1133a, rear inner sub-area 1133b, water leakage hole 114, first water leakage hole 114a, second water leakage hole 114b, shell side wall 115, left shell side wall 115a, right shell side wall 115b, front shell side wall 115c, rear shell side wall 115d, second air inlet 116 a, second air outlet 116b, shell top wall 117, shielding structure 1171, inclined portion 1172, groove 1173, battery pack mounting position 118, first isolation member 120, drainage hole 121, inclined guide structure 122, left area 1221, middle area 1222, right area 1223, front area 1224, rear area 1225, charger circuit board assembly 130, charger interface 131, second isolation element 140, first connecting hole 141, second connecting hole 142, air duct 143, sealing ring 144, first cooling fan 150a, second cooling fan 150b, battery pack 200, battery pack air outlet 210.

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The present invention provides a charger, which can be used to charge a battery pack. Figures 1 to 7 A preferred embodiment of the charger provided by the present invention is shown.

[0043] See also Figures 1 to 3 In this embodiment, the charger 100 includes a housing 110 , a first isolation member 120 , and a charger circuit board assembly 130 .

[0044] See also Figures 1 to 4 The shell 110 defines a first air outlet 111 .

[0045] Specifically, with the height direction of the charger 100 as the up-down direction, the shell 110 generally includes a shell top wall 117, a shell side wall 115, and a shell bottom wall 113. The shell top wall 117 is opposite to the shell bottom wall 113 in the up-down direction, and the shell top wall 117 is located on the upper side of the shell bottom wall 113. The shell side wall 115 is connected between the shell top wall 117 and the shell bottom wall 113, so that the shell top wall 117, the shell side wall 115, and the shell bottom wall 113 enclose and form the inner cavity of the shell 110. The shell 110 is generally a square shell. The length direction of the shell 110 is defined as the left-right direction, and the width direction of the shell 110 is defined as the front-back direction. Thus, the shell side wall 115 includes a left shell side wall 115a, a right shell side wall 115b, a front shell side wall 115c, and a rear shell side wall 115d.

[0046] The first air vent 111 may be disposed at the top of the housing 110, and the top of the housing 110 includes a housing top wall 117 and a portion of the housing side wall 115 adjacent to the housing top wall 117. The following description will be made by taking the case where the first air vent 111 is disposed at the top of the housing 110 as an example. The top of the housing 110 is provided with the first air vent 111, and the housing top wall 117 and / or the housing side wall 115 may be provided with the first air vent 111.

[0047] The first air outlet 111 can be used for air intake; the first air outlet 111 can also be used for air outlet; there can be multiple first air outlets 111, some of which are used for air intake, and the remaining first air outlets 111 are used for air outlet. The housing 110 is provided with a first air inlet 111a and a first air outlet 111b. The first air outlet 111 can include the first air inlet 111a and / or the first air outlet 111b. The following will take the first air outlet 111 including the first air inlet 111a and the first air outlet 111b as an example for introduction.

[0048] See also Figure 2 , Figure 5 , Figure 6 and Figure 7 The first isolating member 120 is disposed in the shell 110 and is located at the lower side of the first air outlet 111. The shell 110 includes an upper space 112a and a lower space 112b divided by the first isolating member 120. The first air outlet 111 is located in the upper space 112a.

[0049] Specifically, the specific shape and style of the first isolating member 120 can be set according to actual conditions. For example, the first isolating member 120 can be set in a plate-like or cover-like shape. The following will take the first isolating member 120 set in a plate-like shape as an example for introduction. The first isolating member 120 is perpendicular or approximately perpendicular to the upper and lower directions. The first isolating member 120 divides the inner cavity of the shell 110 into an upper space 112a and a lower space 112b. The upper space 112a is located on the upper side of the first isolating member 120, and the lower space 112b is located on the lower side of the first isolating member 120. The first isolating member 120 is located on the lower side of the first air outlet 111, and the first air outlet 111 is located in the upper space 112a. In this way, after moisture enters the upper space 112a from the first air outlet 111, it will flow to the upper surface of the first isolating member 120.

[0050] See also Figure 2 , Figure 5 , Figure 6 and Figure 7 The charger circuit board assembly 130 is disposed in the lower space 112b, and the first isolation member 120 has a drainage hole 121 and an inclined guide structure 122 connected to the outside of the shell 110, so that the liquid flows through the inclined guide structure 122 to the drainage hole 121.

[0051] Specifically, the charger circuit board assembly 130 is located at the lower side of the first isolation member 120 and in the lower space 112b, so that the first isolation member 120 can block water for the charger circuit board assembly 130. And because the first isolation member 120 has an inclined flow-guiding structure 122 and a drainage hole 121 connected to the outside of the housing 110, the water flowing to the upper surface of the first isolation member 120 can be guided to the drainage hole 121 under the action of the inclined flow-guiding structure 122, and then discharged to the outside of the housing 110 through the drainage hole 121, so that the water entering the charger 100 cannot cause the key components on the charger circuit board assembly 130 to fail.

[0052] The inclined guide structure 122 can guide the water to the drainage hole 121. The specific arrangement of the inclined guide structure 122 is usually related to the specific arrangement position of the drainage hole 121 on the first isolation member 120. Figures 5 to 7 In this embodiment, the inclined flow guiding structure 122 includes a left area 1221, a middle area 1222 and a right area 1223 which are divided upward from the upper surface of the first isolating member 120 in the left and right directions. The left area 1221 is gradually inclined downward from left to right, the right area 1223 is gradually inclined downward from right to left, and the middle area 1222 is provided with a drainage hole 121. In this way, since the left area 1221 and the right area 1223 are both inclined, the water in the left area 1221 and the right area 1223 can automatically flow to the drainage hole 121 in the middle area 1222 and be discharged to the outside of the housing 110 through the drainage hole 121.

[0053] Optionally, see Figures 5 to 7 In this embodiment, the inclined flow-guiding structure 122 includes a front region 1224 and a rear region 1225 which are divided upward from the upper surface of the first isolating member 120 in the front and rear directions. The front region 1224 is gradually inclined downward from the back to the front, and the rear region 1225 is gradually inclined downward from the front to the back. The front region 1224 and the rear region 1225 are both provided with drainage holes 121 at positions away from each other. In this way, the front region 1224 is provided with drainage holes 121 at a position adjacent to the front shell side wall 115c, and the rear region 1225 is provided with drainage holes 121 at a position adjacent to the rear shell side wall 115d. Since the front region 1224 and the rear region 1225 are both inclined, the water in the front region 1224 and the rear region 1225 can automatically flow to the drainage holes 121 in the front region 1224 and the rear region 1225, respectively, and be discharged to the outside of the housing 110 through the drainage holes 121.

[0054] The first air vent 111 of the charger 100 of the present invention can be arranged at the top of the charger 100, so that the charger 100 is top-outlet, thereby avoiding many disadvantages caused by the air vent being arranged at the side of the charger 100 and ensuring good performance of heat dissipation from the top of the charger 100; and by arranging a first isolating member 120 in the shell 110 and at the lower side of the first air vent 111, a lower space 112b is divided at the lower side of the first isolating member 120, and the charger circuit board assembly 130 is arranged in the lower space 112b. Even if moisture enters the charger 100 from the first air vent 111, it is blocked by the first isolating member 120 and then diverted to the drain hole 121 by the inclined guide structure 122 of the first isolating member 120 to be discharged outside the charger 100. In this way, the moisture entering the charger 100 cannot cause key components on the charger circuit board assembly 130 to fail.

[0055] Optionally, see Figure 3 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the charger 100 also includes a second isolation element 140 located in the lower space 112b, and the upper end and the lower end of the second isolation element 140 respectively abut the lower surface of the first isolation member 120 and the shell bottom wall 113, and the second isolation element 140 is circumferentially arranged outside the charger circuit board assembly 130.

[0056] Specifically, the second isolation element 140 is usually arranged in an annular plate shape, and is located in the lower space 112b. The second isolation element 140 divides the lower space 112b into an inner space 1121 and a peripheral space 1122, wherein the inner space 1121 is located inside the second isolation element 140, and the peripheral space 1122 is located outside the second isolation element 140. In this way, the charger circuit board assembly 130 is in a relatively closed state inside the second isolation element 140, which can better prevent moisture from causing failure of key components on the charger circuit board assembly 130.

[0057] Optionally, see Figure 3 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the drain hole 121 is located on a side of the second isolation element 140 away from the charger circuit board assembly 130. In this way, the drain hole 121 connects the peripheral space 1122 and the upper space 112a, that is, the drain hole 121 is connected to the outside of the housing 110 through the peripheral space 1122, and the water discharged from the drain hole 121 will only enter the peripheral space 1122, and will not enter the inner space 1121.

[0058] Optionally, see Figure 2 , Figure 5, Figure 6 and Figure 7 In this embodiment, the shell 110 is provided with a second air inlet 116a and a second air outlet 116b located in the lower space 112b, the second isolation element 140 has a first connecting hole 141 adjacent to the second air inlet 116a, the first connecting hole 141 is connected to the second air inlet 116a, the second isolation element 140 has a second connecting hole 142 adjacent to the second air outlet 116b, the second connecting hole 142 is connected to the second air outlet 116b.

[0059] Specifically, the charger circuit board assembly 130 is in a relatively closed state on the inner side of the second isolation element 140, so it is necessary to open a first connecting hole 141 and a second connecting hole 142 on the second isolation element 140. The first connecting hole 141 is connected to the second air inlet 116a, and the second connecting hole 142 is connected to the second air outlet 116b.

[0060] For further information, see Figure 2 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the first connecting hole 141 and the second air inlet 116a are staggered in the vertical direction and / or horizontally, and the second connecting hole 142 and the second air outlet 116b are staggered in the vertical direction and / or horizontally.

[0061] Specifically, the first connecting hole 141 and the second air inlet 116a are staggered, and similarly, the second connecting hole 142 and the second air outlet 116b are staggered, thereby preventing moisture from entering the inner space 1121 from the first connecting hole 141 and the second connecting hole 142 along the second air inlet 116a and the second air outlet 116b respectively.

[0062] Optionally, see Figure 3 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the second air inlet 116a is disposed on the left shell side wall 115a, the first connecting hole 141 and the second air inlet 116a are opposite to each other and staggered up and down; the second air outlet 116b is disposed on the right shell side wall 115b, and the second connecting hole 142 and the second air outlet 116b are opposite to each other and staggered up and down. For example, the second air inlet 116a is disposed at the bottom of the left shell side wall 115a, and the first connecting hole 141 is disposed at the top of the second isolation element 140; similarly, the second air outlet 116b is disposed at the bottom of the right shell side wall 115, and the second connecting hole 142 is disposed at the top of the second isolation element 140.

[0063] See also Figure 2 and Figure 5, a second cooling fan 150b is disposed in the peripheral space 1122. Optionally, see Figure 2 and Figure 5 In this embodiment, the lower space 112b has an air duct 143 connected to the second isolation element 140 and a second heat dissipation fan 150b installed on the air duct 143. The second heat dissipation fan 150b is adjacent to the second air outlet 116b.

[0064] Specifically, the second cooling fan 150b is disposed in the peripheral space 1122, and is located between the right shell side wall 115 and the second isolation element 140. The second cooling fan 150b can drive the airflow in the lower space 112b. When the second cooling fan 150b is working, the second cooling fan 150b draws the airflow into the inner space 1121 through the second air inlet 116a and the first connecting hole 141, and the airflow flows through the second connecting hole 142 and the air guide 143 and is discharged from the second air outlet 116b, thereby dissipating the heat of the charger circuit board assembly 130 in the inner space 1121. In addition, an air duct 143 is arranged between the second cooling fan 150b and the second connecting hole 142. One end of the air duct 143 faces the second cooling fan 150b, and the other end faces the second air outlet 116b. The air duct 143 guides the hot air in the inner space 1121 to be discharged from the second air outlet 116b along the air duct 143, thereby avoiding the formation of turbulence.

[0065] Optionally, see Figure 2 and Figure 3 In this embodiment, a sealing ring 144 is provided between the shell bottom wall 113 and the lower end of the second isolation element 140 .

[0066] Specifically, the sealing ring 144 may be an O-ring or the like, and the sealing ring 144 may be installed between the shell bottom wall 113 and the second isolation element 140 by interference fit or the like to prevent liquid at the bottom of the charger 100 from entering the lower space 112b.

[0067] Optionally, see Figure 4 In this embodiment, a water leakage hole 114 is formed on the shell bottom wall 113 , and a water leakage hole 114 is formed on a side of the second isolation element 140 away from the charger circuit board assembly 130 and / or on a side close to the charger circuit board assembly 130 .

[0068] Specifically, the water leakage hole 114 may be provided only on the outer side of the second isolation element 140; the water leakage hole 114 may be provided only on the inner side of the second isolation element 140; or the water leakage hole 114 may be provided both on the outer side and the inner side of the second isolation element 140. The following description will be made by taking the water leakage hole 114 provided on both the outer side and the inner side of the second isolation element 140 as an example, and defining the water leakage hole 114 provided on the outer side of the second isolation element 140 as the first water leakage hole 114a, and the water leakage hole 114 provided on the inner side of the second isolation element 140 as the second water leakage hole 114b.

[0069] The first water leakage hole 114a connects the peripheral space 1122 with the outside of the shell 110, so that the moisture entering the peripheral space 1122 from the drainage hole 121, the second air inlet 116a, and the second air outlet 116b can be discharged outside the charger 100 through the first water leakage hole 114a.

[0070] A plurality of first water leakage holes 114 a are usually provided at intervals along the circumference of the second isolation element 140 .

[0071] Optionally, see Figure 4 and Figure 5 In this embodiment, a plurality of first water leakage holes 114a are provided, a portion of which is vertically opposite to the drainage hole 121, another portion of which is adjacent to the second air inlet 116a, and the remaining first water leakage holes 114a is adjacent to the second air outlet 116b. This facilitates the water that enters the peripheral space 1122 from the drainage hole 121, the second air inlet 116a, and the second air outlet 116b to be directly discharged from the charger 100 through the first water leakage holes 114a, and thus cannot enter the inner space 1121 from the peripheral space 1122.

[0072] Optionally, see Figure 3 and Figure 4 In this embodiment, the upper surface of the shell bottom wall 113 has an annular slope area 1131 which is circumferentially arranged outside the second isolation element 140. The annular slope area 1131 is gradually inclined downward in the direction from the second isolation element 140 to the shell side wall 115. A water leakage hole 114 is arranged near the shell side wall 115 in the annular slope area 1131.

[0073] Specifically, the moisture entering the peripheral space 1122 will flow into the annular slope area 1131. Since the annular slope area 1131 is inclined, the moisture located in the annular slope area 1131 can automatically flow to the first leakage hole 114a adjacent to the shell side wall 115, and then be discharged from the charger 100 from the first leakage hole 114a.

[0074] The second leakage hole 114b connects the inner space 1121 with the outside of the housing 110, so that the water entering the inner space 1121 can be discharged from the second leakage hole 114b to the outside of the charger 100. A plurality of second leakage holes 114b are usually arranged at intervals along the circumference of the second isolation element 140.

[0075] Optionally, see Figure 4 In this embodiment, a plurality of second water leakage holes 114b are provided, and the plurality of second water leakage holes 114b are distributed on both sides of the charger circuit board assembly 130 in the thickness direction (i.e., the front-to-back direction) of the charger circuit board assembly 130, and a portion of the second water leakage holes 114b are adjacent to the first connecting hole 141, and the remaining second water leakage holes 114b are adjacent to the second connecting hole 142. This is conducive to the water entering the inner space 1121 from the first connecting hole 141 and the second connecting hole 142 to be directly discharged from the charger 100 through the second water leakage holes 114b, and thus cannot flow further to the charger circuit board assembly 130.

[0076] Optionally, see Figure 3 and Figure 4 In this embodiment, the upper surface of the shell bottom wall 113 has an inner area 1132 located on the side of the second isolation element 140 close to the charger circuit board assembly 130. The inner area 1132 is divided into two inner sub-areas 1133 in a direction perpendicular to the charger circuit board assembly 130. The two inner sub-areas 1133 are gradually inclined downward in a direction away from each other, and water leakage holes 114 are provided at positions of the two inner sub-areas 1133 away from each other.

[0077] Specifically, the inner area 1132 is divided into two inner sub-areas 1133 from front to back and upward, and the two inner sub-areas 1133 are respectively a front inner sub-area 1133a and a rear inner sub-area 1133b. The front inner sub-area 1133a is gradually inclined downward from back to front, and the rear inner sub-area 1133b is gradually inclined downward from front to back. Second water leakage holes 114b are provided at positions far away from each other between the front inner sub-area 1133a and the rear inner sub-area 1133b. In this way, the moisture entering the inner area 1132 will flow into the inner area 1132. Since the front inner sub-area 1133a and the rear inner sub-area 1133b are both inclined, the moisture located in the front inner sub-area 1133a and the rear inner sub-area 1133b can automatically flow to the second leakage holes 114b of the front inner sub-area 1133a and the rear inner sub-area 1133b respectively, and then be discharged outside the charger 100 from the second leakage holes 114b.

[0078] A water leakage hole 114 is provided at the bottom of the charger 100, so as to prevent the water entering the charger 100 from being unable to be smoothly discharged from the lower space 112b in the event of an accident or soaking in water.

[0079] As described above, the first air port 111 includes a first air outlet 111b, and the first air outlet 111b is disposed at the top of the housing 110. Figure 1 , Figure 2 and Figure 5 In this embodiment, the first air port 111 includes a first air outlet 111b disposed on the shell top wall 117, and the shell 110 has a shielding structure 1171 protruding from the shell top wall 117, and the shielding structure 1171 covers the first air outlet 111b.

[0080] Specifically, a shielding structure 1171 is provided on the upper side of the first air outlet 111b, and the projection of the shielding structure 1171 on the shell top wall 117 can completely cover the first air outlet 111b, so that the shielding structure 1171 can prevent moisture from entering the charger 100 through the first air outlet 111b from a vertical direction.

[0081] The specific shape of the shielding structure 1171 may not be particularly limited. For example, the shielding structure 1171 may be in a plate shape, a cover shape, or a tube shape. Figure 1 , Figure 2 , Figure 3 and Figure 5 In the present embodiment, the main body of the shielding structure 1171 is in the shape of an upward plate, and the main body of the shielding structure 1171 covers the upper side of the first air outlet 111b. Both ends of the main body of the shielding structure 1171 are bent downward to form two bent connection parts, and the two bent connection parts are located on both sides of the first air outlet 111b. The lower ends of the two bent connection parts are connected to the shell top wall 117. The setting method of this shielding structure 1171 is relatively simple, and the shielding structure 1171 has a relatively small impact on the exhaust at the first air outlet 111b.

[0082] The first air outlet 111b is usually disposed in the middle of the housing top wall 117. Figures 1 to 3 In this embodiment, the shell top wall 117 is provided with a groove 1173 with the notch facing upward, and the first air outlet 111 b is provided on the bottom wall of the groove 1173 .

[0083] Specifically, a certain gap is reserved between the first air outlet 111b and the shielding structure 1171 in the upper and lower directions to ensure that the airflow in the upper space 112a can be smoothly discharged from the first air outlet 111b. The shell top wall 117 is usually provided with a handle, and the shielding structure 1171 is located between the handle and the first air outlet 111b. A groove 1173 is provided on the shell top wall 117, and the first air outlet 111b is provided on the bottom wall of the groove 1173. In this way, a certain gap can be reserved between the first air outlet 111b and the shielding structure 1171 to avoid the shielding structure 1171 from interfering with the user holding the handle.

[0084] Optionally, see Figures 1 to 3 In this embodiment, the shell 110 further has an inclined portion 1172 inclined from the end surface of the shell top wall 117 , and the first air outlet 111 b is at least partially located on the inclined portion 1172 .

[0085] Specifically, the first air outlet 111b is disposed on the inclined portion 1172, that is, the surface where the first air outlet 111b is located is inclined, so that even if moisture flows onto the inclined portion 1172, it will flow downward along the outer surface of the charger 100 due to the inclination of the inclined portion 1172, thereby preventing moisture from entering the charger 100 from the first air outlet 111b.

[0086] When the inclined portion 1172 is disposed at the connection between the shell top wall 117 and the left shell side wall 115a, the inclined portion 1172 is gradually inclined toward the left from top to bottom. When the inclined portion 1172 is disposed at the connection between the shell top wall 117 and the right shell side wall 115b, the inclined portion 1172 is gradually inclined toward the right from top to bottom. When the inclined portion 1172 is disposed at the connection between the shell top wall 117 and the front shell side wall 115c, the inclined portion 1172 is gradually inclined toward the front from top to bottom. When the inclined portion 1172 is disposed at the connection between the shell top wall 117 and the rear shell side wall 115d, the inclined portion 1172 is gradually inclined toward the rear from top to bottom. For example, refer to Figures 1 to 3 In this embodiment, two inclined portions 1172 are provided in the middle of the shell top wall 117, and both inclined portions 1172 are provided with the first air outlet 111b. One inclined portion 1172 is provided at the connection between the shell top wall 117 and the front shell side wall 115c, and the other inclined portion 1172 is provided at the connection between the shell top wall 117 and the rear shell side wall 115d.

[0087] The housing 110 is provided with a first air inlet 111a and a first air outlet 111b, and the first air inlet 111a is connected with the first air outlet 111b through the upper space 112a, so that the airflow can enter the upper space 112a from the first air inlet 111a, and then the airflow entering the upper space 112a can be discharged from the first air outlet 111b to the outside of the housing 110. Since the first air outlet 111b is arranged on the housing top wall 117, the first air outlet 111b is opened at the top of the charger 100, so that the charger 100 is top-outlet, thereby avoiding many disadvantages caused by the air outlet being arranged on the side of the charger, and ensuring good performance of heat dissipation from the top of the charger 100.

[0088] Optionally, see Figure 2 , Figure 3 and Figure 5 In this embodiment, the housing 110 further includes a first heat dissipation fan 150a installed in the upper space 112a.

[0089] Specifically, the first cooling fan 150a can drive the airflow in the upper space 112a. When the first cooling fan 150a is working, the first cooling fan 150a draws the airflow outside the charger 100 into the upper space 112a through the first air inlet 111a, and discharges it from the first air outlet 111b. The first cooling fan 150a is arranged in the upper space 112a, and the specific setting position of the first cooling fan 150a in the upper space 112a can be set according to actual conditions.

[0090] Optionally, see Figure 2 , Figure 3 and Figure 5 In this embodiment, the first cooling fan 150a is located below the first air outlet 111b. That is, the first cooling fan 150a is disposed on the top of the charger 100 and adjacent to the first air outlet 111b, which is conducive to converging the airflow in the upper space 112a to the first air outlet 111b and then discharging it.

[0091] The battery pack 200 can be cooled by the upper space 112a of the charger 100. Figure 1 , Figure 8 and Fig. 9 In the present embodiment, the side wall 115 is provided with a battery pack mounting position 118 for mounting the battery pack 200, and the first air outlet 111 includes a first air inlet 111a adjacent to the battery pack mounting position 118. When the battery pack 200 is installed at the battery pack mounting position 118, the first air inlet 111a is connected to the battery pack air outlet 210 of the battery pack 200.

[0092] Specifically, the battery pack 200 is provided with an internal air duct and a battery pack air outlet 210 that are connected, and a charger interface 131 is provided at the battery pack installation position 118, and the charger circuit board assembly 130 is electrically connected to the charger interface 131. When the battery pack 200 is installed at the battery pack installation position 118, the battery pack 200 is electrically connected to the charger interface 131, and the charger 100 can charge the battery pack 200. And when the battery pack 200 is installed at the battery pack installation position 118, the battery pack air outlet 210 of the battery pack 200 is connected to the first air inlet 111a of the charger 100, so that the internal air duct of the battery pack 200 is connected to the upper space 112a of the charger 100, so that the first cooling fan 150a can absorb the heat in the battery pack 200 through the first air inlet 111a on the side, and discharge it from the first air outlet 111b on the top. The charger 100 can actively dissipate heat for the battery pack 200 . The charger 100 is a charger structure that can dissipate heat for the battery pack 200 being charged through the first air outlet 111 b on the top.

[0093] The shell side wall 115 is provided with a battery pack installation position 118, and at least one of the left shell side wall 115a, the right shell side wall 115b, the front shell side wall 115c, and the rear shell side wall 115d may be provided with one or more battery pack installation positions 118. Optionally, please refer to Figures 1 to 3 In this embodiment, the charger 100 is a multi-port charger, and the charger 100 can be provided with two, four, six or more charging ports.

[0094] Optionally, see Figures 1 to 3 In this embodiment, the front shell side wall 115c and the rear shell side wall 115d are both provided with a plurality of battery pack installation positions 118 at intervals from left to right, and each battery pack installation position 118 is provided with a charger interface 131 and a first air inlet 111a. For example, the front shell side wall 115c and the rear shell side wall 115d are both provided with three battery pack installation positions 118 at intervals from left to right, and the charger 100 is a six-port charger.

[0095] The charger 100 uses dual fans, the first cooling fan 150a is only used to dissipate heat for the battery pack 200 being charged, and the second cooling fan 150b is used to dissipate heat for the charger circuit board assembly 130. The charger 100 is sealed by the shielding structure 1171, the first isolation member 120, the second isolation member 140, the inclined design, the planning of the internal waterway, and the sealing ring 144 to ensure that water will not enter the charger 100 as much as possible. Even if water enters the charger 100, it will be discharged from the bottom of the charger 100 along the set path, so as not to affect the charger circuit board assembly 130.

[0096] The present invention also provides a charging system. Figure 8 and Fig. 9 A preferred embodiment of the charging system provided by the present invention is shown.

[0097] See also Figure 8 and Fig. 9 In this embodiment, the charging system 1000 includes a charger 100 and a battery pack 200 . When the battery pack 200 is disposed at the battery pack mounting position 118 of the charger 100 , the battery pack 200 is electrically connected to the charger interface 131 of the charger 100 .

[0098] Specifically, the charger 100 is the charger 100 described above. Since the charger 100 adopts the technical solution of the above embodiment, it has the beneficial effects brought by the technical solution of the above embodiment.

[0099] Optionally, see Figure 8 and Fig. 9 In the present embodiment, the battery pack 200 is provided with an internal air duct and a battery pack air outlet 210 that are connected; when the battery pack 200 is installed at the battery pack installation position 118, the first air inlet 111a of the charger 100 is connected to the battery pack air outlet 210, so that the heat in the battery pack 200 can be sucked into the upper space 112a of the charger 100 through the first air inlet 111a.

[0100] Specifically, when the battery pack 200 is installed at the battery pack installation position 118, the battery pack 200 is electrically connected to the charger interface 131, and the charger 100 can charge the battery pack 200. And when the battery pack 200 is installed at the battery pack installation position 118, the battery pack air outlet 210 of the battery pack 200 is connected to the first air inlet 111a of the charger 100, so that the internal air duct of the battery pack 200 is connected to the upper space 112a of the charger 100, so that the first cooling fan 150a can absorb the heat in the battery pack 200 through the first air inlet 111a on the side, and discharge it from the first air outlet 111b on the top.

[0101] The charger 100 utilizes the law of aerodynamics to greatly improve the heat dissipation efficiency of the charger 100 to the battery pack 200, avoid frequent over-temperature protection or reduce the probability of over-temperature protection during charging, so that the user can get a fully charged battery pack 200 more quickly. The corresponding waterproof design not only ensures safety, but also improves the quality stability of the product, avoids damage due to water ingress during outdoor charging, and improves the user experience.

[0102] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A charger equipped with a battery pack; characterized in that: include: A housing, wherein the housing is provided with a first air outlet, and the first air outlet is configured to dissipate heat for the battery pack; a first isolating member, the first isolating member being disposed in the housing and located at a lower side of the first air outlet, the housing comprising an upper space and a lower space divided by the first isolating member, the first air outlet being located in the upper space; A charger circuit board assembly is arranged in the lower space, the first isolation piece has a drainage hole and an inclined guide structure connected to the outside of the shell, and the external liquid flows to the drainage hole through the inclined guide structure.

2. The charger according to claim 1, characterized in that: The inclined flow guiding structure comprises a left area, a middle area and a right area which are divided upward from the upper surface of the first isolating member in the left and right directions, the left area is gradually inclined downward from left to right, the right area is gradually inclined downward from right to left, and the middle area is provided with the drainage hole; and / or, The inclined guide structure includes a front area and a rear area divided upward from the upper surface of the first isolation member in the front and rear directions, the front area is arranged to be gradually inclined downward from the back to the front, and the rear area is arranged to be gradually inclined downward from the front to the back, and the drainage holes are arranged at positions far away from each other in the front area and the rear area.

3. The charger according to claim 1, characterized in that: The shell includes a shell bottom wall, and the charger also includes a second isolation element located in the lower space, one end of the second isolation element abuts the first isolation member, and the other end abuts the shell bottom wall, and the second isolation element is circumferentially arranged outside the charger circuit board assembly.

4. The charger according to claim 3, characterized in that: The bottom wall of the shell is provided with a water leakage hole, and the second isolation element is provided with the water leakage hole on a side away from the charger circuit board assembly and / or on a side close to the charger circuit board assembly.

5. The charger according to claim 4, characterized in that: The shell further comprises a shell side wall, the upper surface of the shell bottom wall comprises an annular slope area circumferentially arranged outside the second isolation element, the annular slope area is gradually inclined downward in the direction from the second isolation element to the shell side wall, and the leaking hole is arranged at a position of the annular slope area close to the shell side wall; and / or, The upper surface of the bottom wall of the shell has an inner area located on the side of the second isolation element close to the charger circuit board assembly, and the inner area is divided into two inner sub-areas in a direction perpendicular to the charger circuit board assembly. The two inner sub-areas are gradually inclined downward in a direction away from each other, and the water leakage holes are provided at positions of the two inner sub-areas away from each other.

6. The charger according to claim 3, characterized in that: The shell is provided with a second air inlet and a second air outlet located in the lower space, the second isolation element has a first connecting hole adjacent to the second air inlet, the first connecting hole is connected to the second air inlet and is staggered in the vertical direction and / or horizontally, and the second isolation element has a second connecting hole adjacent to the second air outlet, the second connecting hole is connected to the second air outlet and is staggered in the vertical direction and / or horizontally.

7. The charger according to claim 6, characterized in that: The lower space has an air duct connected to the second isolation element and a second heat dissipation fan installed on the air duct, and the second heat dissipation fan is adjacent to the second air outlet.

8. The charger according to claim 3, characterized in that: A sealing ring is arranged between the shell bottom wall and the lower end of the second isolation element.

9. The charger according to claim 1, characterized in that: The shell includes a shell top wall, the first air vent includes a first air outlet arranged on the shell top wall, and the shell has a shielding structure protruding from the shell top wall, and the shielding structure covers the first air outlet.

10. The charger according to claim 9, characterized in that: The shell body further comprises an inclined portion inclined from the end surface of the shell top wall, and the first air outlet is at least partially located on the inclined portion.

11. The charger according to claim 9, characterized in that: The housing further includes a first heat dissipation fan installed in the upper space, and the first heat dissipation fan is located below the first air outlet.

12. The charger according to claim 1, characterized in that: The shell body includes a shell side wall, and the shell side wall is provided with a battery pack mounting position for mounting a battery pack. The first air outlet includes a first air inlet adjacent to the battery pack mounting position. When the battery pack is installed at the battery pack mounting position, the first air inlet is connected to the battery pack air outlet of the battery pack.

13. A charging system, characterized in that: include: A charger, wherein the charger is a charger according to any one of claims 1 to 12; A battery pack, when the battery pack is disposed at the battery pack mounting position of the charger, the battery pack is electrically connected to the charger interface of the charger.

Images