Automobile GPS waterproof battery box

Abstract

The utility model relates to an automobile GPS waterproof battery box, and the utility model wants to solve the technical problem to provide an automobile GPS waterproof battery box, the utility model adopts the technical scheme: including battery box base, battery box end cover, circuit board support and battery, the battery box end cover includes end cover cover body, the end cover cover body back surface from outside to inside is equipped with end cover first limit convex edge, end cover step groove and end cover inner receiving groove in proper order, the end cover inner receiving groove is equipped with the end cover positioning surrounding edge for the battery installation time positioning, the end cover inner receiving groove is equipped with end cover limit recess in the end cover positioning surrounding edge outside. The utility model automobile GPS waterproof battery box's advantage lies in: forms multistage sealing path, constitutes effective'layer by layer water resistance'structure, and this design forms multiple inflection points and sealing interface on the water inflow path, greatly improves waterproof performance, can effectively prevent external rainwater or splashing water from infiltrating the battery box inside.

Description

Technical Field

[0001] This utility model relates to a waterproof battery box for automotive GPS devices. Background Technology

[0002] A waterproof battery box for automotive GPS devices is a specialized protective structure used to install and protect the power battery of a vehicle's GPS module. Its main function is to provide a stable mounting position and necessary environmental protection for the GPS power supply system during vehicle operation, particularly preventing rainwater, dust, and other external impurities from entering the battery compartment, thus ensuring the long-term stable operation of the GPS device. Typically, this type of battery box consists of a battery box base, end caps, and an internal support structure for fixing the circuit board and battery. The battery is secured and sealed using sealing rings and snap-fit ​​mechanisms. Existing automotive GPS battery boxes generally suffer from the following problems: Most traditional battery boxes rely on a single sealing ring or sealant for sealing, which cannot effectively resist long-term rain or splashing water during vehicle operation. This can easily lead to minor water leakage, causing corrosion or short circuits at the battery contacts. Existing structures typically lack effective drainage channels, so once moisture or liquid seeps in, it can easily accumulate at the bottom of the battery box and cannot be drained in time. Long-term water accumulation can damage internal components. Improvements and optimizations are needed to address these issues. Utility Model Content

[0003] To address the aforementioned problems, the present invention aims to provide a waterproof battery box for automotive GPS devices.

[0004] The technical solution adopted by this utility model of a waterproof battery box for automotive GPS is as follows: It includes a battery box base, a battery box end cover, a circuit board bracket and a battery disposed within the battery box base. The battery box end cover includes an end cover body, and the back of the end cover body is provided with, from the outside to the inside, a first limiting protrusion, a step groove, and an inner receiving groove. The inner receiving groove has an end cover positioning edge for positioning the battery during installation. The inner receiving groove has an end cover limiting groove outside the positioning edge. The battery box base has an inner cavity, and the bottom periphery of the inner cavity is provided with... The base has a recessed groove. The inner wall of the inner cavity of the base is provided with, from the inside to the outside, an inner side of the base that is engaged with the end cover limiting groove, a base step protrusion that is engaged with the end cover step groove, and a base mating groove that fits with the end cover body. The base mating groove is provided with a base snap-fit ​​groove for engaging with the first limiting protrusion of the end cover. The outer wall of the battery box base is provided with a first drainage hole that is connected to the bottom of the base snap-fit ​​groove at intervals around an arc. The upper surface of the base step protrusion is provided with a second drainage hole that is vertically penetrating at intervals around an arc.

[0005] It also includes a sponge ring, which is placed in the recessed groove of the base.

[0006] It also includes a sealing ring, which is sleeved on the outer side of the inner edge of the base and is positioned between the upper surface of the raised step of the base and the receiving groove inside the end cap.

[0007] The circuit board bracket is placed inside the base cavity, the lower end of the end cap positioning edge abuts against the circuit board bracket, and the battery is placed inside the end cap positioning edge.

[0008] The diameters of both the first and second drain holes are less than 1 mm.

[0009] The advantages of this utility model of a waterproof battery box for automotive GPS are as follows: by setting up a multi-layered structure between the battery box base and the battery box end cover, such as the inner baffle of the base, the raised step of the base, and the docking groove of the base, the first limiting protrusion, the stepped groove, and the inner receiving groove of the end cover are sequentially fitted together, thereby forming a multi-level sealing path and constituting an effective "layer-by-layer water-blocking" structure; this design forms multiple inflection points and sealing interfaces on the water inflow path, which greatly improves the waterproof performance and can effectively prevent external rainwater or splash water from seeping into the battery box. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a structural schematic diagram of the waterproof battery box for automotive GPS devices according to this utility model; Figure 2 This is an exploded view of the waterproof battery box for automotive GPS devices according to this utility model. Figure 3 This is the end cover of the battery box of this utility model; Figure 4 yes Figure 3 A magnified view of a portion of the image; Figure 5 This is a schematic diagram of the structure of the battery box base of this utility model; Figure 6 yes Figure 5 A magnified view of a portion of the image. Detailed Implementation

[0012] like Figure 1-6As shown, the waterproof battery box for automotive GPS involved in this utility model includes a battery box base 1, a battery box end cover 2, a circuit board bracket 3 and a battery 4 disposed in the battery box base 1. The battery box end cover 2 includes an end cover body 8. The back of the end cover body 8 is provided with an end cover first limiting protrusion 9, an end cover step groove 10 and an end cover inner receiving groove 11 from the outside to the inside. The end cover inner receiving groove 11 is provided with an end cover positioning edge 12 for positioning the battery 4 during installation. The end cover inner receiving groove 11 is provided with an end cover limiting groove 13 outside the end cover positioning edge 12. The battery box base 1 is provided with a base cavity 15. The bottom periphery of the base cavity 15 is provided with a base recessed groove 16. The inner wall of the base cavity 15 is provided with a base inner baffle 17 that is engaged with the end cover limiting groove 13 and the end cover step groove from the inside to the outside. The base step protrusion 18 is connected to the end cover body 8, and the base mating groove 19 fits into the end cover body 8. The base mating groove 19 is provided with a base snap-fit ​​groove 20 for snapping into the first limiting protrusion 9 of the end cover. The outer wall of the battery box base 1 is provided with a first drainage hole 21 that is connected to the bottom of the base snap-fit ​​groove 20 at intervals around an arc. The upper end face of the base step protrusion 18 is provided with a second drainage hole 22 that is vertically penetrating at intervals around an arc. The base snap-fit ​​groove 20 and the inner baffle 17 of the base form a double waterproof barrier system. The base step protrusion 18 further enhances the sealing effect and delays the infiltration of water. The first drainage hole 21 and the second drainage hole 22 can drain the infiltrated water in time. This design forms multiple inflection points and sealing interfaces in the water inflow path, which greatly improves the waterproof performance and can effectively prevent external rainwater or splash water from seeping into the battery box.

[0013] It also includes a sponge ring 6, which is placed in the recessed groove 16 of the base to ensure that the inside of the base cavity 15 is dry and to prevent moisture from damaging the battery.

[0014] It also includes a sealing ring 5, which is sleeved on the outer side of the inner edge 17 of the base and is located between the upper surface of the step protrusion 18 of the base and the receiving groove 11 inside the end cover. It can realize dynamic sealing compensation, improve sealing fit and durability, and prevent water leakage caused by thermal expansion and contraction or vibration.

[0015] The circuit board bracket 3 is placed inside the inner cavity 15 of the base, the lower end of the end cap positioning edge 12 abuts against the circuit board bracket 3, and the battery 4 is placed inside the end cap positioning edge 12.

[0016] The diameters of the first drain hole 21 and the second drain hole 22 are both less than 1 mm, which can both guide water and prevent external dust particles from entering.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A waterproof battery box for automotive GPS, characterized in that: The battery box includes a battery box base (1), a battery box end cover (2), a circuit board bracket (3) disposed in the battery box base (1), and a battery (4). The battery box end cover (2) includes an end cover body (8). The back of the end cover body (8) is provided with an end cover first limiting protrusion (9), an end cover step groove (10), and an end cover inner receiving groove (11) from the outside to the inside. The end cover inner receiving groove (11) is provided with an end cover positioning edge (12) for positioning the battery (4) during installation. The end cover inner receiving groove (11) is provided with an end cover limiting groove (13) outside the end cover positioning edge (12). The battery box base (1) is provided with a base cavity (15). The bottom periphery of the base cavity (15) is... The base is provided with a recessed groove (16). The inner wall of the inner cavity (15) of the base is provided with, from the inside to the outside, a base inner edge (17) that is snapped into the end cover limiting groove (13), a base step protrusion (18) that is connected to the end cover step groove (10), and a base docking groove (19) that is fitted to the end cover body (8). The base docking groove (19) is provided with a base snapping groove (20) for snapping into the first limiting protrusion (9) of the end cover. The outer wall of the battery box base (1) is provided with a first drainage hole (21) that is connected to the bottom of the base snapping groove (20) at intervals around an arc. The upper surface of the base step protrusion (18) is provided with a second drainage hole (22) that is vertically penetrating at intervals around an arc.

2. The waterproof battery box for automotive GPS according to claim 1, characterized in that: It also includes a sponge ring (6), which is placed in the recessed groove (16) of the base.

3. The waterproof battery box for automotive GPS according to claim 1, characterized in that: It also includes a sealing ring (5), which is sleeved on the outer side of the inner edge (17) of the base and is located between the upper surface of the base step protrusion (18) and the inner receiving groove (11) of the end cap.

4. The waterproof battery box for automotive GPS according to claim 1, characterized in that: The circuit board bracket (3) is placed inside the base cavity (15), the lower end of the end cap positioning edge (12) abuts against the circuit board bracket (3), and the battery (4) is placed inside the end cap positioning edge (12).

5. The waterproof battery box for automotive GPS according to claim 1, characterized in that: The diameter of the first drain hole (21) and the diameter of the second drain hole (22) are both less than 1 mm.

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