Sprayer battery shell assembly and sprayer battery

Abstract

The utility model provides a sprayer battery shell assembly and a sprayer battery. The sprayer battery shell assembly comprises a shell, a plastic battery cell bracket and an end cover, the shell is in a single-end opening shape, a containing space is defined by the side walls of the shell, the containing space is provided with at least one set of opposite side walls, and clamping parts extending in the height direction of the containing space are distributed on the inner sides of the opposite side walls. The plastic battery cell bracket comprises a bottom end bracket and a top end bracket detachably connected to the clamping part, a bottom end fixing hole for fixing the bottom end of the battery cell is formed in the bottom end bracket, and a top end fixing hole is correspondingly formed in the top end bracket. Clamping matching parts clamped with the clamping parts are formed on the two side walls, close to at least one group of opposite side walls of the shell, of the top end support, the top end support is connected to the shell through the clamping parts and the clamping matching parts, and the position of the battery is limited in the length direction of the opposite side walls and the height direction of the containing space. And the end cover covers the open end of the shell in an opening or sealing manner.

Description

Technical Field

[0001] The utility model relates to the field of sprayer accessories, and particularly to a sprayer battery housing assembly and a sprayer battery. Background Art

[0002] A sprayer is a commonly used agricultural tool that uses the siphon effect to turn liquid medicine or other liquids into a mist and evenly spray it onto crops. The traditional agricultural sprayer is a backpack sprayer, and the user carries the sprayer on the back for spraying operations. Moreover, the traditional backpack sprayer is mostly a manual sprayer, which not only has a high labor intensity during operation but also makes it difficult to control the content of the sprayed insecticide, thus making it difficult to meet the refined cultivation management of existing crops. With the continuous development of control technology, the traditional backpack sprayer has gradually evolved into an intelligent electric sprayer. As the power source of the electric sprayer, the battery is an important component of the sprayer. To meet the operation duration, existing electric sprayers usually use rechargeable batteries for power supply, such as batteries composed of multiple lithium battery cores or multiple lead-acid battery cores. In this battery structure, multiple battery cores are installed in the battery box and then assembled into the sprayer housing, such as the lithium-ion battery for the backpack electric sprayer in Chinese Patent CN 204857802 U. In existing electric sprayer batteries, to facilitate the installation of the battery cores, the battery box needs to be set relatively large, but the excessive space in the battery box will cause the battery cores to move, thereby affecting the reliability of the electrical connection.

[0003] To solve this problem, someone has proposed placing a bracket on the upper end of the battery core and longitudinally pressing the bracket through the pressing column on the end cover to tightly press the battery core longitudinally so that the battery can be fixed in the housing. During the charging and discharging process of the battery core, the materials on the electrodes will undergo reversible volume changes, and the longitudinal pressing and fixing method is extremely likely to damage the electrode materials and affect the service life of the battery. In addition, the longitudinal pressing and fixing only limits the battery longitudinally, but the positions of adjacent battery cores are not fixed, and the battery cores are extremely likely to tilt and abut against adjacent battery cores during the pressing process. At this time, if the surface layer of the battery core is worn, it is extremely likely to cause a short circuit between adjacent battery cores and lead to battery failure; at the same time, the mutual abutment will also result in no heat dissipation space between adjacent battery cores, and the heat accumulation between the battery cores will affect the charging energy consumption, and in severe cases, it may even cause battery failure. Further, in this longitudinal pressing and fixing method, the bracket is in a free state before the end cover is closed, and it is difficult for the pressing column on the end cover to align with the pressing position on the bracket. Especially when there are through holes such as lightening holes distributed on the bracket, the free movement of the bracket is extremely likely to cause the pressing column on the end cover to pass through the through hole and press on the battery core electrode, thereby damaging the battery core.

[0004] To solve the problem of battery fixation, some people have proposed using an adhesive to fix the battery on the side wall of the housing. Although this fixation method does not have the problem of electrode damage caused by longitudinal compression, since the adhesive is extremely prone to aging at high temperatures, the adhesive will fail after the battery is used for a period of time, causing the battery to move freely within the housing. In addition, in the adhesive fixation method, the positions of adjacent battery cells are still not fixed, so there are still problems of short circuit and heat accumulation caused by the contact of the battery cells. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provides a sprayer battery housing assembly and a sprayer battery.

[0006] To achieve the above object, the utility model provides a sprayer battery housing assembly, which includes a housing, a plastic battery cell bracket, and an end cap. The housing is in a single-end open shape, and the side wall of the housing encloses a receiving space for accommodating the sprayer battery, and the receiving space has at least one pair of opposite side walls. Clamping portions extending along the height direction of the receiving space are distributed on the inner sides of the opposite side walls. The plastic battery cell bracket includes a bottom bracket placed at the bottom of the receiving space and a top bracket detachably connected to the clamping portions. Bottom fixing holes for fixing the bottom end of the battery cell are provided on the bottom bracket, and corresponding top fixing holes are provided on the top bracket; clamping cooperation portions for clamping with the clamping portions are formed on two side walls of the top bracket close to at least one pair of opposite side walls of the housing. The top bracket is connected to the housing through the clamping portions and the clamping cooperation portions, and the position of the battery is defined in the length direction of the opposite side walls and the height direction of the receiving space. The end cap is opened or hermetically closed at the open end of the housing.

[0007] According to an embodiment of the utility model, the clamping portion is a plastic connecting column continuously extending along the height direction of the receiving space, the clamping cooperation portion on the side wall of the top bracket is a clamping groove clamped on the connecting column, and an adjustment gap extending along the height direction of the receiving space is formed in the middle of the clamping portion. The adjustment gap provides a deformation space for the clamping portion when the clamping cooperation portion is in interference connection with the clamping portion.

[0008] According to an embodiment of the utility model, a limiting member opposite to the clamping portion is formed on the end cap, and the limiting member extends towards the direction of the receiving space of the housing; when the end cap is closed on the housing, the outer side of the limiting member is embedded in the adjustment gap of the clamping portion, and the inner side thereof extends into the receiving space to limit the top bracket.

[0009] According to an embodiment of the utility model, the lower end of the inner side of the limiting member extends into the clamping groove serving as the clamping cooperation portion on the top bracket, and the width of the limiting member gradually decreases along its extending direction and the width of its upper end is greater than the depth of the clamping groove.

[0010] According to an embodiment of the present utility model, one or more engaging portions are provided on the housing at intervals along the length direction of the opposite side walls, and each engaging portion includes two vertically distributed parallel rib plates, and an adjustment gap is formed between the two vertically distributed rib plates.

[0011] According to an embodiment of the present utility model, bottom heat dissipation holes are formed on the bottom end bracket between adjacent two bottom fixing holes, top heat dissipation holes are formed between adjacent top fixing holes on the top end bracket, and a longitudinal heat dissipation channel is formed among the bottom heat dissipation holes, the installation gap between adjacent battery cells, and the top heat dissipation holes.

[0012] According to an embodiment of the present utility model, on the bottom end bracket, a plurality of bottom limiting portions are distributed at intervals on the edge of each bottom fixing hole, and the inner side of each bottom limiting portion extends into the bottom fixing hole; based on the bottom limiting portions, a transverse heat dissipation channel is formed between the bottom end bracket and the inner bottom wall of the housing.

[0013] According to an embodiment of the present utility model, on the top end bracket, a plurality of top limiting portions are distributed at intervals on the edge of each top fixing hole, and the inner side of each top limiting portion extends into the top fixing hole.

[0014] According to an embodiment of the present utility model, the end surface of the engaging portion close to the open end of the housing gradually inclines towards the bottom of the housing to form a guiding surface, and the guiding surface is an arc-shaped curved surface.

[0015] On the other hand, the present utility model further provides a sprayer battery including the above-mentioned sprayer battery housing assembly.

[0016] To sum up, in the sprayer battery housing assembly provided by the present utility model, engaging portions extending in the height direction of the accommodation space are formed on the opposite side walls of the housing, and a engaging and cooperating portion is formed on the plastic top end bracket for fixing the battery cells to cooperate with the engaging portions. Due to the limitation of the engaging portions and the engaging and cooperating portions, the battery cell bracket is limited in both the length direction of the bracket and the height direction of the accommodation space, and the plastic top end bracket provides a deformation space for the reversible volume deformation of the battery cells during charging and discharging, avoiding electrode damage caused by excessive tight fitting during charging and discharging.

[0017] Furthermore, the engaging portion is set as a plastic connecting column with an adjustment gap, and the card slot on the top end bracket serving as the engaging and cooperating portion is in interference connection with the plastic connecting column. This setting not only realizes the height direction limitation of the top end bracket, but also when the battery cell electrodes undergo reversible volume changes, it will push the top end bracket and cause the card slot to move relative to the plastic connecting column, thereby further providing an adjustment space for its deformation in the height direction, ensuring the normal operation of the sprayer battery and extending its service life.

[0018] To make the above and other objects, features, and advantages of the present utility model more obvious and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and describes them in detail as follows. Brief Description of the Drawings

[0019] Figure 1 The following shows a schematic structural diagram of a battery housing assembly of a sprayer provided by an embodiment of the present utility model.

[0020] Figure 2 The following shows Figure 1 a schematic cross-sectional view.

[0021] Figure 3 The following shows Figure 2 an enlarged schematic view of part A in

[0022] Figure 4 The following shows Figure 1 a schematic structural diagram after removing the end cap.

[0023] Figure 5 The following shows Figure 4 an enlarged schematic view of part B in

[0024] Figure 6 The following shows Figure 2 a schematic structural diagram of the top bracket in

[0025] Figure 7 The following shows Figure 2 a schematic structural diagram of the bottom bracket in

[0026] Figure 8 The following shows Figure 1 a schematic structural diagram of the end cap in

[0027] Figure 9 The following shows Figure 8 a schematic structural diagram from another perspective. Detailed Embodiments

[0028] As Figures 1 to 9As shown in the figure, the sprayer battery housing assembly provided in this embodiment includes a housing 1, a plastic battery cell holder 2, and an end cap 3. The housing 1 is open at one end, and the side wall of the housing 1 encloses an accommodation space 11 for accommodating the sprayer battery. The accommodation space 11 has at least one pair of opposite side walls 12, and on the inner side of each pair of opposite side walls 12, there are engaging portions 13 extending along the height direction of the accommodation space 11. The plastic battery cell holder includes a bottom holder 21 placed at the bottom of the accommodation space 11 and a top holder 22 detachably connected to the engaging portion 13. The bottom holder 21 is provided with bottom fixing holes 211 for fixing the bottom end of the battery cell, and correspondingly, the top holder 22 is provided with top fixing holes 221. On two side walls of the top holder 22 close to at least one pair of opposite side walls 12 of the housing, there are engaging and cooperating portions 222 that are engaged with the engaging portion 13. The top holder 22 is connected to the housing 1 through the engaging portion 13 and the engaging and cooperating portion 222, and the position of the battery is defined in the length direction of the opposite side walls 12 and the height direction of the accommodation space 11. The end cap 3 is opened or hermetically closed at the open end of the housing 1.

[0029] Specifically, the sprayer battery housing assembly provided in this embodiment is used to fix a battery including a plurality of battery cells. The battery cells are rechargeable battery cells. The bottom holder 21 is provided with a plurality of bottom fixing holes 211, and correspondingly, the top holder 22 is provided with a plurality of top fixing holes 221. The settings of the bottom fixing holes 211 and the top fixing holes 221 define the positions of both ends of each battery cell. The adjacent battery cells are arranged in parallel and there is an installation gap between them, thus well solving the short - circuit fault caused by the inclined contact between adjacent battery cells in the existing battery fixing method. Further, between two adjacent bottom fixing holes 211 on the bottom holder 21, there are bottom heat dissipation holes 213, and between two adjacent top fixing holes 221 on the top holder 22, there are top heat dissipation holes 224. A longitudinal heat dissipation channel is formed among the bottom heat dissipation holes 213, the installation gap between adjacent battery cells, and the top heat dissipation holes 224. Based on this longitudinal heat dissipation channel, the heat between the battery cells can be well circulated into the accommodation space 11, avoiding the problems of low charging efficiency caused by too high temperature between the battery cells and safety problems caused by thermal runaway.

[0030] In this embodiment, as Figure 2 and Figure 7 shown, on the bottom holder 21, at the edge of each bottom fixing hole 211, there are a plurality of bottom limiting portions 212 distributed at intervals, and the inner side of each bottom limiting portion 212 extends into the bottom fixing hole 211 to limit the bottom end of the battery cell. Further, based on the bottom limiting portions 212, a transverse heat dissipation channel is formed between the bottom holder 21 and the inner bottom wall of the housing 1. This transverse heat dissipation channel forms a heat dissipation loop with the longitudinal heat dissipation channel formed between adjacent battery cells and the accommodation space 11 outside the battery, thereby further improving the heat dissipation performance of the battery.

[0031] In this embodiment, the structure of the top bracket 22 is the same as that of the bottom bracket 21, but their installation directions are opposite. This structure enables the top bracket 22 and the bottom bracket 21 to be processed and formed using the same mold, reducing the mold opening cost and the defective assembly rate. Specifically, as Figure 6 shown, on the top bracket 22, a plurality of top limiting portions 223 are spaced apart from each other at the edge of each top fixing hole 221, and the inner side of each top limiting portion 223 extends into the top fixing hole 221 to limit the top portion of the battery cell. The plurality of top limiting portions 223 arranged at intervals further reduce the weight of the top bracket 22 while achieving the top limit of the battery cell to realize a lightweight design. However, the present utility model does not make any limitation thereto. In other embodiments, a circumferentially continuous limiting ring may also be provided in each top fixing hole or on the surface of the top bracket.

[0032] Although this embodiment is described by taking the sprayer battery including a plurality of battery cells as an example. However, the present utility model does not make any limitation thereto. The sprayer battery housing assembly provided in this embodiment is also applicable to a sprayer battery having an integral battery cell; at this time, the number of the top fixing holes and the bottom fixing holes is one each.

[0033] The sprayer battery housing assembly provided in this embodiment realizes the limitation of the battery in the accommodation space 11 through the cooperation of the engaging portions 13 on the opposite side walls 12 of the housing and the engaging and cooperating portions 222 (i.e., the card slots) on the top bracket 22, including the limitation in the length direction of the opposite side walls 12 and the limitation in the height direction of the accommodation space 11, ensuring that the battery does not shake after being assembled, thereby effectively solving the problems such as the separation of the wires and the electrodes caused by the movement of the battery in the accommodation space. The plastic top bracket 22 provides a deformation space in the height direction for the reversible deformation of the electrode material of the battery cell during charging and discharging, avoiding the battery damage caused by excessive pressing in the longitudinal direction. Further, the opening of the top fixing holes 221 reduces the volume of the top bracket 22, making it easier to undergo plastic deformation to better adapt to the reversible deformation of the battery cell in the height direction.

[0034] As Figure 1 shown, the housing 1 is a cuboid structure having two groups of opposite side walls 12, and the engaging portions 13 are distributed on the inner sides of one group of the opposite side walls 12. Specifically, two engaging portions 13 are respectively spaced apart from each other on the two opposite side walls 12 in their length directions. However, the present utility model does not make any limitation to the number of the engaging portions. In other embodiments, the number of the engaging portions may be set to one or more than three according to needs.

[0035] In this embodiment, each engaging portion 13 is a plastic connecting column continuously extending along the height direction of the accommodating space 11. The engaging and mating portion 222 on the side wall of the top bracket 22 is a clamping groove that is press-fitted onto the plastic connecting column. A adjusting gap 131 extending along the height direction of the accommodating space 11 is formed in the middle of the engaging portion 13. The adjusting gap 131 provides a deformation space for the engaging portion 13 when the engaging and mating portion 222 (i.e., the clamping groove) is press-fitted to connect with the engaging portion 13. The combined action of the plasticity of the top bracket 22 and the adjusting gap 131 enables the engaging and mating portion 222 (i.e., the clamping groove) to be stably connected to the engaging portion 13 to realize the limit of the battery in the height direction of the accommodating space. At the same time, this connection method enables the top bracket 22 to move relative to the engaging portion 13. Therefore, when the plastic deformation of the top bracket 22 is not sufficient to meet the reversible deformation of the battery cell during charging and discharging, the top of the battery cell will push the top bracket 22 to undergo a small displacement along the engaging portion 13 to realize the adaptive adjustment in the height direction.

[0036] To prevent the top bracket 22 from detaching from the engaging portion 13, as Figure 8 and Figure 9 shown, in this embodiment, a limiting member 31 is formed on the end cover 3 and is disposed opposite to the engaging portion 13. The limiting member 31 extends towards the accommodating space 11 of the housing. When the end cover 3 is covered on the housing 1, the outer side of the limiting member 31 is embedded in the adjusting gap 131 of the engaging portion 13, and its inner side extends into the accommodating space 11 to limit the top bracket 22. Specifically, the limiting member 31 is a limiting piece with a thickness smaller than the adjusting gap 131. The lower end of the inner side of the limiting member 31 extends into the clamping groove serving as the engaging and mating portion 222 on the top bracket 22. The width of the limiting member 31 gradually decreases along its extending direction and the width of its upper end is greater than the depth of the clamping groove. However, the present invention does not make any limitation thereto. In other embodiments, based on the limitation of the limiting member by the adjusting gap and the positioning of the top bracket by the engaging portion, the inner side of the limiting member can also be set to precisely abut against the upper end of the bracket for limiting.

[0037] The limiting member 31 with a gradually changing width provides different limiting forces for the top brackets 22 of different heights to realize the adaptive adjustment of the limiting force in the height direction of the battery. Specifically, for a battery with a relatively small weight, its height is relatively low. Therefore, the engaging and mating portion 222 (i.e., the clamping groove) on the top bracket 22 is positioned at a relatively low position on the engaging portion 13. At this time, the lower end with a smaller width of the limiting member 31 extends into the engaging and mating portion 222 (i.e., the clamping groove), and the friction force between the limiting member 31 and the engaging and mating portion 222 (i.e., the clamping groove) is very small or almost zero; the limit of the top bracket 22 in the height direction of the accommodating space is mainly based on the interference fit between the engaging portion 13 and the engaging and mating portion 222.

[0038] When the battery used in the sprayer is heavy, that is, when the battery has a high height, the top bracket 22 is positioned at a higher position of the engaging portion 13. At this time, the wider position on the limiting member 31 will abut against the inner wall of the engaging and mating portion 222 (i.e., the card slot), and a relatively large frictional force that hinders the upward movement of the top bracket 22 is formed between the two. On the basis of the interference fit between the engaging portion 13 and the engaging and mating portion 222, this frictional force further enhances the limiting ability, effectively preventing the top bracket 22 from detaching from the engaging portion on the side wall of the housing 1 due to excessive inertial force during vibration of the heavy battery. The limiting force adaptively provided by the limiting member 31 based on different battery models greatly improves the stability and versatility of battery fixation.

[0039] In this embodiment, a plurality of lightweight card slots are distributed on the side wall of the top bracket 22, and two of the lightweight card slots are used as the engaging and mating portion 222. Although this embodiment is described by taking the engaging portion 13 as a plastic connecting column and the engaging and mating portion 222 as a card slot as an example. However, the present invention does not make any limitation in this regard. In other embodiments, the engaging portion may also be set as a card slot, while the engaging and mating portion is a corresponding plastic connecting column.

[0040] Specifically, as Figure 3 shown, the engaging portion 13 includes two vertically distributed rib plates 132 arranged in parallel, and an adjustment gap 131 is formed between the two vertically rib plates 132. To facilitate the deformation of the engaging portion 13 during connection, the thickness of the vertically rib plate 132 is gradually reduced from the connection end of the vertically rib plate 132 to the opposite side wall 12 to its free end, and the surface of the vertically rib plate 132 on the side away from the adjustment gap 131 is in an arc-shaped curved surface. Further, the end surface of the vertically rib plate 132 near the open end of the housing 1 is inclined gradually towards the bottom of the housing 1 to form a guiding surface 133, and the guiding surface 133 is an arc-shaped curved surface. During assembly, the engaging and mating portion 222 (card slot) on the top bracket 22 can be engaged with the two sides of the two vertically rib plates 132 from top to bottom along the guiding surface 133, which greatly facilitates the assembly of the top bracket 22 and the housing 1. However, the present utility model does not make any limitation in this regard. In other embodiments, the engaging portion may also be an integral engaging column, but a groove extending along the height direction of the accommodating space is provided in the middle thereof, and an adjustment gap is formed at the groove.

[0041] Correspondingly, this embodiment also provides a sprayer battery, which includes the above-mentioned sprayer battery housing assembly, a plurality of battery cells installed in the sprayer battery housing assembly, nickel strips connecting the electrodes at both ends of the plurality of battery cells, and a battery circuit board assembly.

[0042] In summary, in the sprayer battery housing assembly provided by the present utility model, engaging portions extending in the height direction of the accommodating space are formed on the opposite side walls of the housing, and engaging mating portions that cooperate with the engaging portions are formed on the plastic top bracket for fixing the battery cell. Due to the limitation of the engaging portions and the engaging mating portions, the battery cell bracket is limited in both the length direction of the bracket and the height direction of the accommodating space, and the plastic top bracket provides a deformation space for the reversible volume deformation of the battery cell during charging and discharging, avoiding electrode damage caused by excessive tight fitting during charging and discharging of the battery.

[0043] Furthermore, the engaging portion is set as a plastic connecting column with an adjustment gap, and the card slot serving as the engaging mating portion on the top bracket is in interference connection with the plastic connecting column. This setting not only realizes the height direction limitation of the top bracket, but also when the battery cell electrode undergoes reversible volume change, it will push the top bracket and cause the card slot to move relative to the plastic connecting column, thereby further providing an adjustment space for its deformation in the height direction, ensuring the normal operation of the sprayer battery and extending its service life.

[0044] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in this art can make some modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope claimed in the claims.

Claims

1. A battery housing assembly for a sprayer, characterized in that, Comprising: A housing, which is open at one end, and the side wall of the housing encloses a receiving space for accommodating a sprayer battery, and the receiving space has at least one pair of opposite side walls, and engaging portions extending along the height direction of the receiving space are distributed on the inner sides of the opposite side walls; A plastic battery cell bracket, including a bottom bracket placed at the bottom of the receiving space and a top bracket detachably connected to the engaging portion. A bottom fixing hole for fixing the bottom end of the battery cell is provided on the bottom bracket, and a top fixing hole is correspondingly provided on the top bracket; on the two side walls of the top bracket close to at least one pair of opposite side walls of the housing, engaging cooperation portions engaged with the engaging portion are formed, and the top bracket is connected to the housing through the engaging portion and the engaging cooperation portion, and the position of the battery is defined in the length direction of the opposite side walls and the height direction of the receiving space; An end cap, which is opened or hermetically closed at the open end of the housing.

2. The battery housing assembly of the sprayer according to claim 1, characterized in that, The engaging portion is a plastic connecting column continuously extending along the height direction of the receiving space, and the engaging cooperation portion on the side wall of the top bracket is a slot engaged with the connecting column. An adjustment gap extending along the height direction of the receiving space is formed in the middle of the engaging portion, and the adjustment gap provides a deformation space for the engaging portion when the engaging cooperation portion is in interference connection with the engaging portion.

3. The battery housing assembly of the sprayer according to claim 2, characterized in that, A limiting member opposite to the engaging portion is formed on the end cap, and the limiting member extends towards the direction of the receiving space of the housing; when the end cap is closed on the housing, the outer side of the limiting member is embedded in the adjustment gap of the engaging portion, and its inner side extends into the receiving space to limit the top bracket.

4. The sprayer battery housing assembly according to claim 3, wherein The lower end of the inner side of the limiting member extends into the slot serving as the engaging cooperation portion on the top bracket, the width of the limiting member gradually decreases along its extending direction, and the width of its upper end is greater than the depth of the slot.

5. The atomizer battery housing assembly according to claim 2, wherein, One or more engaging portions are sequentially and spacedly distributed on the housing along the length direction of the opposite side walls, and each engaging portion includes two vertically distributed rib plates arranged in parallel, and an adjustment gap is formed between the two vertically distributed rib plates.

6. The battery housing assembly of the sprayer according to claim 1, characterized in that, Bottom heat dissipation holes are formed on the bottom bracket between adjacent two bottom fixing holes, top heat dissipation holes are formed between adjacent top fixing holes on the top bracket, and a longitudinal heat dissipation channel is formed among the bottom heat dissipation holes, the installation gap between adjacent battery cells, and the top heat dissipation holes.

7. The battery housing assembly of the sprayer according to claim 1, characterized in that, On the bottom bracket, a plurality of bottom limiting portions are spacedly distributed on the edge of each bottom fixing hole, and the inner side of each bottom limiting portion extends into the bottom fixing hole; based on the bottom limiting portions, a transverse heat dissipation channel is formed between the bottom bracket and the inner bottom wall of the housing.

8. The battery housing assembly of the sprayer according to claim 1, characterized in that, On the top bracket, a plurality of top limiting portions are spacedly distributed on the edge of each top fixing hole, and the inner side of each top limiting portion extends into the top fixing hole.

9. The battery housing assembly of the sprayer according to claim 1, characterized in that, The end face of the engaging portion close to the open end of the housing gradually inclines towards the bottom of the housing to form a guiding surface, and the guiding surface is an arc-shaped curved surface.

10. A sprayer battery, characterized in that, Including the sprayer battery housing assembly according to any one of claims 1 to 9.

Images