Waterproof structure and power head

Abstract

The application relates to a waterproof technology field of a power head, and particularly discloses a waterproof structure and a power head. The waterproof structure comprises a flip cover and a cover shell, the flip cover is connected with the cover shell through turning, is used for realizing the closing or opening of the cover shell, a gap is formed at the upper end surface of the combination of the flip cover and the cover shell, first waterproof ribs and second waterproof ribs are arranged from the outside to the inside at the upper end surface of the outer side edge of the cover shell matched with the flip cover, the first waterproof ribs and the second waterproof ribs extend along the length direction of the outer side edge of the cover shell, a flow guide groove is formed between the first waterproof ribs and the second waterproof ribs, and the flow guide groove is communicated with the gap; when there is accumulated rainwater on the cover shell or the rainwater is large, the rainwater can flow into the flow guide groove through the gap and flow out from the left and right outer surfaces of the cover shell downwards along the flow guide groove, so that the phenomenon that the normal use of a battery pack is affected due to a large amount of accumulated rainwater entering the battery pack is avoided.

Description

Technical Field

[0001] This application relates to the field of waterproof power head technology, specifically to a waterproof structure and a power head. Background Technology

[0002] Currently, with the development of lithium battery technology, most outdoor equipment or garden tools use lithium battery packs as their power source for their power heads. The lithium battery pack is typically housed within a cavity formed by a cover and a flip cover mounted above the power head. To allow for heat exchange between the external air and the battery pack, a gap is often formed on the upper surface of the joint between the cover and the flip cover to facilitate airflow. During rainy weather, rainwater may seep into the battery pack through this gap, affecting its normal operation. Therefore, waterproofing treatment is necessary at the joint between the cover and the flip cover.

[0003] In most existing technologies, a water-retaining extension is provided on the side where the cover and flip cover meet. Although the water-retaining extension can provide waterproofing to a certain extent, when there is heavy rain or a lot of rainwater accumulates on the cover and flip cover, rainwater can still pass through the water-retaining extension and enter the battery pack, which will have an adverse effect on the use of the battery pack. Utility Model Content

[0004] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the existing technology and provide a waterproof structure and power head.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A waterproof structure comprising:

[0007] Flip cover;

[0008] The cover and the flip cover are connected to each other to achieve the closing or opening of the cover. A gap is formed at the upper end face where the flip cover and the cover are combined. A first waterproof rib and a second waterproof rib are provided from the outside to the inside at the upper end face of the outer edge of the cover that cooperates with the flip cover. The first waterproof rib and the second waterproof rib extend along the length direction of the outer edge of the cover. A guide groove is formed between the first waterproof rib and the second waterproof rib, and the guide groove is connected to the gap.

[0009] Furthermore, vertically downward extending guide surfaces are respectively provided on the outer surfaces of the outer edges of the cover that cooperate with the flip cover, and the upper ends of the guide surfaces are connected to the guide grooves.

[0010] Furthermore, the second waterproof rib extends from the upper end face of the outer edge of the cover that mates with the flap to the bottom end of the outer surface on both opposite sides.

[0011] Furthermore, the first waterproof reinforcement bar protrudes upwards at a greater height than the second waterproof reinforcement bar.

[0012] Furthermore, the inner wall of the flip cover is provided with outwardly protruding blocking ribs, which extend into the guide groove when the flip cover is rotated onto the cover.

[0013] Furthermore, the blocking ribs extend along the upper surface of the flap.

[0014] Furthermore, the projections of the blocking rib and the second waterproof rib in a plane perpendicular to the battery pack insertion direction at least partially overlap.

[0015] Furthermore, a concave recess is formed in the middle of the upper surface of the cover, and the recess is connected to the gap.

[0016] Furthermore, the first and second waterproof ribs are integrally molded with the cover shell.

[0017] The waterproof structure between the cover and the flip cover provided in this application has the following advantages over the prior art: by providing a first waterproof rib and a second waterproof rib on the inner edge of the cover, and forming a guide channel between the first waterproof rib and the second waterproof rib, the guide channel is connected to the gap formed at the junction of the cover and the flip cover. In this way, when there is rainwater accumulation on the cover or when the rain is heavy, the rainwater can flow into the guide channel through the gap and flow down from the outer surface of the left and right sides of the cover along the guide channel, thus avoiding the phenomenon that a large amount of accumulated rainwater enters the battery pack and affects the normal use of the battery pack.

[0018] Another technical solution adopted in this application is to provide a power head, including a waterproof structure as described above.

[0019] As can be seen from the above solution, the power head provided in this application, due to the waterproof structure between the cover and the flip cover, has the technical effect of the waterproof structure between the cover and the flip cover. During use, the power head has a first waterproof rib and a second waterproof rib set on the inner edge of the cover, and a guide groove is formed between the first waterproof rib and the second waterproof rib. The guide groove is connected to the gap formed at the junction of the cover and the flip cover. In this way, when there is rainwater accumulation on the cover or when the rain is heavy, the rainwater can flow into the guide groove through the gap and flow down from the outer surface of the left and right sides of the cover along the guide groove, avoiding the phenomenon that the accumulated rainwater enters the battery pack in large quantities and affects the normal use of the battery pack. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of a power head equipped with a waterproof structure between the cover and the flip cover in one embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the installation structure of the cover in a waterproof structure between the cover and the flip cover in one embodiment of this application.

[0023] Figure 3 This is a top view of a power head equipped with a waterproof structure between the cover and the flip cover in one embodiment of this application.

[0024] Figure 4 for Figure 3 A schematic diagram of the AA-direction cross-section structure.

[0025] Figure 5 This is a three-dimensional structural diagram of a flip cover in one embodiment of this application.

[0026] Figure 6 This is a three-dimensional structural diagram of the cover in one embodiment of this application.

[0027] Figure 7 for Figure 4 A magnified schematic diagram of the structure at point B in the diagram.

[0028] Figure 8 for Figure 6 A magnified schematic diagram of the structure at point C. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Example 1

[0031] Reference Figures 1 to 8As shown, a waterproof structure 100 includes a flip cover 16 and a cover 10. The flip cover 16 is hinged to one side of the cover 10, that is, the flip cover 16 can be flipped relative to the cover 10 to realize the closing or opening of the cover 10. The battery pack is installed in the cavity formed by the flip cover 16 and the cover 10.

[0032] A gap is formed at the upper end face where the flip cover 16 and the cover 10 are joined. A first waterproof rib 11 and a second waterproof rib 13 are provided on the upper end face of the edge of the cover 10 that mates with the flip cover 16, with the second waterproof rib 13 being closer to one side of the flip cover 16. The first waterproof rib 11 and the second waterproof rib 13 extend along the length of the outer edge of the cover 10, that is, parallel to the direction of the outer edge end face of the cover 10. A guide groove 12 is formed between the first waterproof rib 11 and the second waterproof rib 13. The guide groove 12 is connected to the gap formed at the joint between the cover 10 and the flip cover 16. In this way, when there is rainwater accumulation on the cover 10 or when there is heavy rain, the rainwater can flow into the guide groove 12 through the gap and flow downward from the left and right outer surfaces of the cover 10 along the guide groove 12. This allows the rainwater accumulated on the cover 10 to be quickly discharged outward, preventing the phenomenon of a large amount of accumulated rainwater entering the battery pack and affecting the normal use of the battery pack.

[0033] In some embodiments, the first waterproof rib 11 and the second waterproof rib 13 are integrally formed with the cover 10, which can eliminate the connection point of the first waterproof rib 11 and the second waterproof rib 13 on the cover 10, making the structure a continuous whole, and the force can be transmitted and distributed more evenly throughout the structure, avoiding the problem of excessive local stress.

[0034] Reference Figure 2 and Figure 6 As shown, vertically downward extending guide surfaces are respectively provided on the left and right outer surfaces of the outer edge of the cover 10 that mates with the flip cover 16. The upper end of the guide surface is connected to the guide groove 12. In this way, rainwater flowing downward through the guide groove 12 can flow downward according to a preset path, that is, flow vertically downward along the guide surface. At the same time, the presence of the guide surface can also prevent rainwater from entering the interior of the battery pack during the downward flow. The outer edge of the guide surface (that is, the edge near the flip cover 16) forms an upward protruding baffle. The baffle can prevent rainwater flowing downward along the guide surface from entering the end face where the flip cover 16 and the cover 10 are joined, thereby preventing rainwater from entering the interior of the battery pack.

[0035] Reference Figure 2 and Figure 6As shown, in this embodiment, the second waterproof rib 13 extends from the upper end face of the outer edge of the cover 10 that mates with the flip cover 16 to the bottom end of the outer surface on both sides. That is, the second waterproof rib 13 is arranged on the entire edge position of the outer edge of the cover 10 that mates with the flip cover 16. In other words, the second waterproof rib 13 is formed on the left side, upper end face and right side of the outer edge of the cover 10. The baffle formed on the outer edge of the above-mentioned flow guide surface is constituted by the second waterproof rib 13.

[0036] Reference Figure 6 and Figure 8 As shown, in this embodiment, the height of the first waterproof rib 11 protruding upward is greater than the height of the second waterproof rib 13 protruding upward, and the height of the first waterproof rib 11 is greater than the height of the second waterproof rib 13. The height of the second waterproof rib 13 is slightly lower to avoid interference when the flip cover 16 is rotated and fastened to the cover 10, which would prevent the flip cover 16 from fitting tightly with the cover 10 and affect the waterproof effect.

[0037] Reference Figures 3 to 5 as well as Figure 7 As shown, in this embodiment, the inner wall of the flip cover 16 is provided with an outwardly protruding blocking rib 14. The blocking rib 14 extends along the upper end face of the flip cover 16. When the flip cover 16 is rotated to cover the cover 10, the blocking rib 14 extends into the guide groove 12.

[0038] Reference Figure 7 As shown, when external rainwater enters through the gap between the flap 16 and the cover 10, the blocking rib 14 acts as a barrier to prevent the rainwater from being impacted and passing over the second waterproof rib 13 to enter the cavity enclosed by the flap 16 and the cover 10. The blocking rib 14 restricts the rainwater to flow out along the guide surface after it is contained in the guide groove 12.

[0039] Continue to refer to Figure 7 As shown, in order to provide the waterproof effect of the blocking rib 14, in this embodiment, the projections of the blocking rib 14 and the second waterproof rib 13 in the plane perpendicular to the battery pack insertion direction at least partially overlap. That is, the projections of the lower end face of the blocking rib 14 and the upper part of the second waterproof rib 13 in the plane perpendicular to the battery pack insertion direction at least partially overlap. With this design, when external rainwater enters the guide channel 12, the external rainwater will first come into contact with the lower end face of the blocking rib 14. The blocking rib 14 plays a blocking function, preventing external rainwater from directly flowing to the second waterproof rib 13 and causing it to flow into the battery pack.

[0040] Reference Figure 1 and Figure 2As shown, a recessed portion 15 is formed in the middle of the upper end face of the cover 10. One end of the recessed portion 15 is connected to the joint gap between the flip cover 16 and the cover 10. Due to the presence of the recessed portion 15, some of the rainwater on the outer surface of the cover 10 will slide off from its sides and some will flow into the recessed portion 15. The rainwater in the recessed portion 15 can be discharged from its end or overflow from the joint gap between the flip cover 16 and the cover 10 into the guide channel 12 and be discharged outward quickly. Therefore, the setting of the recessed portion 15 enables the rainwater on the surface of the cover 10 to be discharged in multiple ways, reducing the rainwater discharge pressure of the guide channel 12.

[0041] Example 2

[0042] Reference Figure 1 Based on the same technical concept, this application embodiment also provides a power head 200, including the waterproof structure 100 between the cover and the flip cover. By adopting the waterproof structure 100 between the cover and the flip cover, when there is rainwater accumulation on the cover 10 or when the rain is heavy, the rainwater can flow into the guide channel 12 through the gap, and can flow down from the left and right outer surfaces of the cover 10 along the guide channel 12, avoiding the phenomenon that the accumulated rainwater enters the battery pack in large quantities and affects the normal use of the battery pack.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A waterproof structure, characterized in that, include: Flip cover; The cover has a flip-top that flips and connects to it to close or open the cover. A gap is formed at the upper end face where the flip-top and the cover are joined. A first waterproof rib and a second waterproof rib are provided from the outside to the inside at the upper end face of the outer edge of the cover that mates with the flip-top. The first and second waterproof ribs extend along the length of the outer edge of the cover. A guide groove is formed between the first and second waterproof ribs and is connected to the gap.

2. The waterproof structure according to claim 1, characterized in that, On the outer surfaces of the outer edges of the cover that cooperate with the flip cover, vertically downward extending guide surfaces are respectively provided on the opposite sides of the outer surface, and the upper end of the guide surface is connected to the guide groove.

3. A waterproof structure according to claim 2, characterized in that, The second waterproof rib extends from the upper end face of the outer edge of the cover that mates with the flap to the bottom end of the outer surface on both opposite sides.

4. A waterproof structure according to claim 1, 2, or 3, characterized in that, The first waterproof reinforcement bar protrudes upward to a greater height than the second waterproof reinforcement bar.

5. A waterproof structure according to claim 1, characterized in that, The inner wall of the flip cover is provided with outwardly protruding blocking ribs, wherein when the flip cover is rotated to cover the cover, the blocking ribs extend into the guide groove.

6. A waterproof structure according to claim 5, characterized in that, The blocking rib extends along the upper surface of the flap.

7. A waterproof structure according to claim 5 or 6, characterized in that, The projections of the blocking rib and the second waterproof rib in a plane perpendicular to the battery pack insertion direction at least partially overlap.

8. A waterproof structure according to claim 1, characterized in that, A recessed portion is formed in the middle of the upper end face of the cover, and the recessed portion is connected to the gap.

9. A waterproof structure according to claim 1, characterized in that, The first and second waterproof ribs are integrally formed with the cover shell.

10. A power head, characterized in that, Includes a waterproof structure as described in any one of claims 1 to 9 above.

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