Waterproof battery box and electric bicycle

Abstract

The utility model discloses a waterproof battery box and an electric bicycle, and relates to the technical field of electric bicycles. The waterproof battery box comprises a box body, a waterproof support and a plurality of drainage holes. The box body comprises a battery cell chamber for accommodating a battery cell, and a first outer chamber and a second outer chamber which are positioned on two sides of the battery cell chamber along a first direction; the waterproof support is located in the first outer cavity and provided with a base and an inner convex part, one side of the base can be connected with the battery cell, and the inner convex part is located in the center of the base and enables the outer edge of the base to form a gluing step. The plurality of drainage holes are formed in the bottom of the box body and are formed in one side, far away from the battery cell cavity, of the waterproof bracket along the first direction. By adopting the technology provided by the utility model, multiple waterproof effects can be effectively realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bicycle technical field, concretely relates to a waterproof battery box and electric bicycle. BACKGROUND

[0002] The tubular battery box of electric bicycle generally needs to have certain waterproof effect to adapt to the use of users in rainy days or other humid conditions. At present, the tubular battery box mainly has the following two ways to realize waterproof: one is to use foaming glue to seal the gap of the battery box, and waterproof glue is used to fill between the convex rib of the battery box cover and the groove, but the above glue as a soft sealing material, which is easy to age in long-term use, resulting in the decline of waterproof performance.

[0003] The second is to embed waterproof rubber pad for sealing, for example, the utility model patent document (CN218867317U) discloses a waterproof battery box with stable installation, which sets waterproof rubber pad outside the discharge socket, and the lower side of the power taking plug is also provided with a water leakage hole, and the lower side of the water leakage hole is also provided with a buffer rubber pad, and waterproof is realized through the waterproof rubber pad and waterproof rubber ring. But this way requires high accuracy for installation, which increases the complexity and time cost of assembly. UTILITY MODEL CONTENT

[0004] The utility model provides a waterproof battery box and electric bicycle to solve the problem of waterproof failure caused by the aging of soft sealing material of the battery box in the prior art.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of providing a waterproof battery box, which comprises: a box body, a waterproof support and a plurality of drainage holes.

[0006] The box body comprises an electric core chamber for accommodating an electric core and first and second outer chambers located on both sides of the electric core chamber along a first direction; the waterproof support is located in the first outer chamber and is provided with a base and an inner convex part, one side of the base can be connected with the electric core, wherein the inner convex part is located at the center of the base and makes the outer edge of the base form a glue filling step. A plurality of drainage holes are located at the bottom of the box body and are located on the side of the waterproof support away from the electric core chamber along the first direction.

[0007] The technical scheme provided by the utility model has the beneficial effects compared with the prior art:

[0008] By separating the box body into the battery cell cavity, the first outer cavity and the second outer cavity, different waterproof levels are adopted for the battery cell cavity, the first outer cavity and the second outer cavity after the battery box is configured, and targeted protection is achieved. The first outer cavity is additionally provided with a waterproof support and a glue filling step, and the glue filling step can fill sealing glue to the same plane as the inner boss, thereby forming an effective waterproof barrier to ensure the waterproof performance of the battery cell cavity. The waterproof support in combination with the sealing glue can ensure that there is no missed gap, and the aging speed of the soft material is reduced.

[0009] A plurality of drainage holes are arranged at the bottom of the box body, so that even when the first outer cavity is filled with water (such as condensed water in a humid environment or seepage in rainy days), the water can be discharged along the drainage holes in time. That is, the outermost box body is waterproof, the drainage holes are impermeable, and the waterproof support is filled with glue to achieve multiple waterproof effects.

[0010] In some embodiments, the bottom of the box body is also provided with a rib extending in the first direction, and the drainage hole penetrates the rib in the second direction.

[0011] The above technical solution increases the rib to improve the structural strength of the battery box, and the drainage hole is arranged in the rib, so that the water on both sides of the rib can be discharged along the drainage hole, avoiding water accumulation.

[0012] In some embodiments, the projection of the waterproof support in the second direction is wedge-shaped.

[0013] The above technical solution is adopted. In order to fit the battery box to the pipe rack of the electric bicycle, the tubular battery needs to be installed at an angle. Therefore, the waterproof support is wedge-shaped, so that when water enters the first outer cavity, the waterproof support can guide the water to the drainage port.

[0014] In some embodiments, the waterproof support further includes a discharge interface recessed in the inner boss. Further, the waterproof support further includes a groove, and the discharge interface is located in the groove, wherein the projection of the groove in the second direction is trapezoidal.

[0015] The above technical solution adopts the recessed design of the waterproof interface to avoid water entering the battery cell cavity through the discharge interface. In order to ensure the stability of the wiring of the internal electronic components, the groove in which the discharge interface is located is trapezoidal, which can keep the connection wires of the electronic components horizontal and reduce the bending points, and the trapezoidal structure can also effectively prevent water accumulation in the groove.

[0016] In some embodiments, the first outer cavity is provided with a battery end cover, which can be buckled with the box body to improve the waterproof performance of the first outer cavity.

[0017] In some embodiments, the second outer chamber is also provided with an electricity connection plug, and when the tube battery is installed on the electric bicycle tube rack, the second outer chamber is inclined towards the bottom, so that the accumulated water or condensed water can be directly discharged by the neutral effect. Wherein, the waterproof rubber pads are used on both sides of the cover body, and the elastic and sealing properties thereof can be used to ensure the close contact between the cover body and the box body.

[0018] In some embodiments, the base of the waterproof support is a hollow structure and is provided with a plurality of reinforcing ribs. Since the waterproof support is wedge-shaped, the plurality of reinforcing ribs can improve the structural stability thereof, and the hollow structure of the waterproof support can also reduce the self-weight.

[0019] In some embodiments, the application also provides an electric bicycle comprising a tube rack and the above-mentioned waterproof battery box, wherein the waterproof battery box is inclinedly arranged in the second direction on the tube rack.

[0020] By using the above technical scheme, the inclined arrangement of the battery box can reduce the impact of road bumps on the battery, and the structure of the tube rack can be coordinated to improve the aesthetics of the electric bicycle.

[0021] Further, the plurality of drainage holes of the waterproof battery box are located on both sides of the tube rack in the third direction.

[0022] By using the above technical scheme, the drainage holes are arranged on both sides of the tube rack to facilitate the smooth drainage of the water in the first outer chamber, avoiding the obstruction of the tube rack. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings, wherein:

[0024] Figure 1 is a sectional view of an embodiment of a waterproof battery box provided by the present application;

[0025] Figure 2 is a three-dimensional structural schematic diagram of an embodiment of a waterproof support of a waterproof battery box provided by the present application; Figure 1

[0026] Figure 3 is a partial sectional view of an embodiment of a waterproof battery box provided by the present application;

[0027] Figure 4 ​is an embodiment of the side view of the waterproof battery box provided by the utility model;

[0028] Figure 5 is an embodiment of the side view of the waterproof support of the waterproof battery box provided by the utility model;

[0029] Figure 6 is an embodiment of the waterproof support of the waterproof battery box provided by the utility model; Figure 1 ;

[0030] Figure 7 is an embodiment of the side view of the waterproof battery box provided by the utility model;

[0031] Figure 8 is an embodiment of the side view of the waterproof battery box provided by the utility model.

[0032] In the drawings:

[0033] 10, box body; 11, electric core chamber; 12, first outer chamber; 120, battery end cover; 13, second outer chamber; 130, cover body; 131, waterproof rubber pad; 14, rib;

[0034] 20, waterproof support; 21, base; 22, inner convex part; 23, glue pouring step; 24, discharging interface; 25, groove; 26, reinforcing rib; 30, drainage hole; 40, pipe support. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0036] In order to facilitate subsequent description, before describing the specific structure of the waterproof battery box, the first direction (X) and the second direction (Z) are defined in the application in combination with Figure 1 The third direction (Y) is defined in combination with Figure 6 The first direction is the length direction when the waterproof battery box is normally placed, for example, the X direction; the second direction is the height direction when the waterproof battery box is normally placed, for example, the Z direction; and the third direction is the width direction when the waterproof battery box is normally placed, for example, the Y direction. The first direction (X), the second direction (Z) and the third direction (Y) are perpendicular to each other in the application.

[0037] It can be understood that the mutual perpendicularity in the present application is not absolute perpendicularity, and approximate perpendicularity (for example, the included angle between two structural features is 89.9°) caused by processing errors and assembly errors is also within the range of mutual perpendicularity in the present application.

[0038] Referring to Figures 1 to 3 as shown, Figure 1 a cross-sectional view of an embodiment of a waterproof battery box provided by the present application is shown; Figure 2 a three-dimensional structural schematic diagram of an embodiment of a waterproof support 20 of a waterproof battery box provided by the present application is shown Figure 1 ; Figure 3 a partial cross-sectional view of an embodiment of a waterproof battery box provided by the present application is shown.

[0039] In some embodiments, the waterproof battery box comprises a box body 10, a waterproof support 20, and a plurality of drainage holes 30.

[0040] The box body 10 comprises a battery cell chamber 11 for accommodating a battery cell, and a first outer chamber 12 and a second outer chamber 13 located on both sides of the battery cell chamber 11 along a first direction; the waterproof support 20 is located in the first outer chamber 12 and is provided with a base 21 and an inner protrusion 22, one side of the base 21 being capable of being connected with the battery cell, wherein the inner protrusion 22 is located in the center of the base 21 and causes the outer edge of the base 21 to form a glue filling step 23. The plurality of drainage holes 30 are located at the bottom of the box body 10 and on the side of the waterproof support 20 away from the battery cell chamber 11 along the first direction.

[0041] In the embodiments of the present application, as shown in Figure 1 by separating the box body 10 into the battery cell chamber 11, the first outer chamber 12, and the second outer chamber 13, different waterproof levels are adopted for the battery cell chamber 11, the first outer chamber 12, and the second outer chamber 13 after the battery box is configured, and targeted protection is achieved, for example, the waterproof level of the battery cell chamber 11 is the highest.

[0042] The first outer chamber 12 is additionally provided with the waterproof support 20 and the glue filling step 23, which can fill the sealant to the same plane as the inner protrusion, in combination with Figure 3 as shown, Figure 3 the shadow part of the glue filling step 23 in is the sealant, for example, the sealant can be polyurethane sealant, silicone sealant, etc. The present application does not limit this. The waterproof support 20 after glue filling can form an effective waterproof barrier to ensure the waterproof performance of the battery cell chamber 11, and the combination of the waterproof support 20 and the sealant can ensure that there is no missing gap compared with the gap filling mode of the sealant, and the aging speed of the soft material is reduced.

[0043] A plurality of drainage holes 30 are arranged at the bottom of the box body 10, so that even when the first outer chamber 12 is filled with water (e.g. condensation water in a humid environment, water seepage in rainy days), the water can be drained in time along the drainage holes 30. That is, the waterproof effect is achieved by the waterproof box body 10, the water-permeable and waterproof drainage holes 30, and the waterproof support 20 combined with the gel filling.

[0044] In some embodiments, the first outer chamber 12 is provided with a battery end cover 120, which can be buckled with the box body 10 to improve the waterproof performance of the first outer chamber 12.

[0045] Referring to Figure 4 illustrated, Figure 4 a side view of an embodiment of a waterproof battery box provided by the present application is shown.

[0046] In some embodiments, the bottom of the box body 10 is also provided with a rib 14 extending in a first direction (see Figure 1 ), wherein the drainage holes 30 penetrate the rib 14 in a second direction.

[0047] In the embodiments of the present application, the rib 14 is added to improve the structural strength of the battery box, and the drainage holes 30 are arranged in the rib 14, so that the water on both sides of the rib 14 can be drained along the drainage holes 30, avoiding water accumulation.

[0048] Referring to Figure 5 illustrated, Figure 5 a side view of an embodiment of a waterproof battery box provided by the present application is shown.

[0049] In some embodiments, the projection of the waterproof support 20 in the second direction is wedge-shaped.

[0050] In the embodiments of the present application, in order to fit the battery box to the pipe rack 40 of the electric bicycle, the battery box needs to be installed at an angle. Therefore, the waterproof support 20 is arranged in a wedge shape, so that when water enters the first outer chamber 12, the waterproof support 20 can guide the water to the drainage port.

[0051] Referring to Figure 6 illustrated, Figure 6 a perspective structural schematic view of an embodiment of a waterproof support 20 of a waterproof battery box provided by the present application is shown. Figure 1 .

[0052] In some embodiments, in combination with Figure 2 and Figure 5 illustrated, the waterproof support 20 further comprises a discharge interface 24 recessed in the inner convex portion 22. Further, the waterproof support 20 further comprises a groove 25, and the discharge interface 24 is located in the groove 25, wherein the projection of the groove 25 in the second direction is trapezoidal.

[0053] In the embodiment of the present application, the inner recess design of the waterproof interface can avoid water entering the battery cavity 11 along the discharge interface 24. In order to ensure the stability of the wiring of the internal electronic components, the groove 25 in which the discharge interface 24 is located is set as a trapezoidal shape to keep the wiring harness of the electronic components horizontal and reduce the bending points, and the trapezoidal structure can also effectively avoid water accumulation in the groove 25.

[0054] Referring to Figure 7 illustrated, Figure 7 A three-dimensional structural schematic diagram of an embodiment of a cover 130 of a waterproof battery box provided by the present application is shown.

[0055] In some embodiments, the second outer cavity 13 is also provided with an electrical plug. When the tubular battery is installed in the pipe rack 40 of the electric bicycle, the second outer cavity 13 is directed towards the bottom, and when there is water accumulation or condensation inside, it can be directly discharged by the neutral effect. The waterproof rubber pads 131 are used on both sides of the cover 130, which can ensure the tight contact between the cover 130 and the box body 10 by using the elasticity and sealing property thereof.

[0056] In some embodiments, the base 21 of the waterproof bracket 20 is a hollow structure and is provided with a plurality of reinforcing ribs 26. Since the waterproof bracket 20 is wedge-shaped, the plurality of reinforcing ribs 26 can improve the structural stability thereof, and the hollow structure of the waterproof bracket 20 can also reduce the weight thereof.

[0057] Referring to Figure 8 illustrated, Figure 8 A three-dimensional structural schematic diagram of an embodiment of a waterproof battery box provided by the present application is shown.

[0058] In some embodiments, the present application also provides an electric bicycle, which comprises a pipe rack 40 and the above-mentioned waterproof battery box, and the waterproof battery box is arranged in the pipe rack 40 in the second direction.

[0059] In the embodiment of the present application, the battery box arranged in the inclined manner can reduce the impact of road bumps on the battery and coordinate with the structure of the pipe rack 40 to improve the aesthetics of the electric bicycle.

[0060] Further, the plurality of drainage holes 30 of the waterproof battery box are located on both sides of the pipe rack 40 in the third direction.

[0061] Exemplarily, in combination with Figure 4 illustrated, the drainage holes 30 are arranged on both sides of the pipe rack 40 so that the water in the first outer cavity 12 can be smoothly discharged, avoiding the obstruction caused by the pipe rack 40.

[0062] The above merely describes the implementation manners of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields based on the content of the present application specification and drawings shall be within the protection scope of the present application.

Claims

1. A waterproof battery case characterized by comprising: The application relates to a waterproof battery box. The waterproof battery box comprises a box body, a waterproof support and a plurality of drainage holes. The box body comprises a battery cell cavity for accommodating a battery cell and a first outer cavity and a second outer cavity located on both sides of the battery cell cavity along a first direction. The waterproof support is located in the first outer cavity and is provided with a base and an inner protrusion.

2. The waterproof battery case according to claim 1, characterized by One side of the base can be connected with the battery cell.

3. The waterproof battery case according to claim 1, wherein The inner protrusion is located in the center of the base and makes the outer edge of the base form a glue injection step.

4. The waterproof battery case according to claim 1, wherein The plurality of drainage holes are located on the bottom of the box body and are located on the side of the waterproof support away from the battery cell cavity along the first direction.

5. The waterproof battery case according to claim 4, wherein The bottom of the box body is further provided with a rib extending along the first direction.

6. The waterproof battery case of claim 1, wherein, The drainage holes penetrate the rib along a second direction.

7. The waterproof battery case according to claim 1, wherein The projection of the waterproof support along the second direction is wedge-shaped.

8. The waterproof battery box according to claim 1, characterized in that, The waterproof support further comprises a discharge interface recessed in the inner protrusion.

9. An electric bicycle, characterized by The waterproof support further comprises a groove, and the discharge interface is located in the groove.

10. The electrically powered cycle of claim 9, wherein, The projection of the groove along the second direction is trapezoidal. The first outer cavity is provided with a battery end cover which can be buckled with the box body. The second outer cavity is further provided with a cover body. The cover body is embedded in the box body and is provided with waterproof rubber pads on both sides along the first direction. The base of the waterproof support is a hollow structure and is provided with a plurality of reinforcing ribs. The waterproof battery box is inclinedly arranged in a pipe frame along a second direction. The plurality of drainage holes of the waterproof battery box are located on both sides of the pipe frame along a third direction.

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