Waterproof battery module

Abstract

The utility model belongs to the technical field of battery modules, and particularly relates to a waterproof battery module which is characterized by comprising a battery pack and a battery box, the battery pack is fixed in the battery box, the battery box comprises a bottom plate, a front panel, two side panels and a top cover plate, the battery pack is fixed on the top of the bottom plate, and the front panel is fixed on the top of the battery pack. The two sides of the front panel are connected with the two side panels respectively, the two sides of the bottom plate are provided with inserting grooves respectively, the two side panels are fixed in the two inserting grooves respectively, sealing cavities are formed between the side panels and the inner side walls of the inserting grooves, bolts connected with the side panels are arranged on the outer side walls of the two inserting grooves, and the sealing cavities are communicated with the inserting grooves. A limiting plate and an expansion part are arranged in the sealing cavity, the expansion part is used for pushing the limiting plate to be tightly connected with the inner side of the side panel, water absorption expansion gel is arranged in the expansion part, the limiting plate is pushed to be attached to the inner side of the side panel by arranging the expansion part, the attaching strength is improved, and the sealing effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, in particular to a waterproof battery module. Background Art

[0002] Base stations are public mobile communication base stations, which are interface devices for mobile devices to access the Internet. They are also a form of radio stations. They refer to radio transceiver stations that transmit information to mobile phone terminals through mobile communication exchange centers in a certain radio coverage area. The construction of mobile communication base stations is an important part of the investment of mobile communication operators. The construction of mobile communication base stations is generally carried out around factors such as coverage, call quality, investment benefits, construction difficulty, and maintenance convenience. As mobile communication network services develop towards dataization and packetization, the development trend of mobile communication base stations is bound to be broadband, large coverage construction, and IP. Since base stations are usually located at a high altitude and are prone to lightning strikes and power outages, many base stations are also equipped with lithium battery packs to prevent lightning strikes and power outages. Batteries used for backup power supply of base stations are usually exposed outdoors and need to withstand high intensity of sun and rain. Existing backup batteries are usually set with battery boxes on the surface. The battery box is sealed and waterproofed by waterproof rubber rings. However, due to long-term sun and rain, the waterproof rubber rings are easily oxidized and hardened and deformed, resulting in loss of sealing effectiveness and cannot meet the use requirements. Utility Model Content

[0003] The utility model aims to provide a waterproof battery module, aiming to solve the technical problem in the prior art that the waterproof rubber ring is easily oxidized and hardened and deformed due to long-term exposure to sunlight and rain, resulting in loss of sealing effectiveness and failure to meet usage requirements.

[0004] To achieve the above-mentioned purpose, an embodiment of the utility model provides a waterproof battery module, including a battery pack and a battery box, wherein the battery pack is fixed in the battery box, and the battery box includes a bottom plate, a front panel, two side panels and a top cover plate, the battery pack is fixed to the top of the bottom plate, and the two sides of the front panel are respectively connected to the two side panels, and slots are respectively provided on both sides of the bottom plate, and the two side panels are respectively fixed in the two slots, and a sealed cavity is provided between the side panels and the inner side walls of the slots, and the outer side walls of the two slots are provided with bolts connected to the side panels, and a limit plate and an expansion part are provided in the sealed cavity, and the expansion part is used to push the limit plate to be tightly connected with the inner side of the side panel, and a water-absorbing and swelling gel is provided in the expansion part.

[0005] Preferably, the expansion portion comprises an elastic colloid layer and a separation layer, the elastic colloid layer is coated on the surface of the separation layer, the surface of the elastic colloid layer is in contact with the limiting plate, and the water-absorbing and swelling gel is arranged in the separation layer.

[0006] Preferably, one side of the separation layer is provided with an opening, and the opening passes through the elastic colloid layer and communicates with the inside of the slot.

[0007] Preferably, the inner side walls of the two slots extend toward the top cover plate and abut against the inside of the top cover plate, and waterproof rubber pads are provided at the abutment points between the inner side walls of the two slots and the top cover plate.

[0008] Preferably, a plurality of screws are provided on the top of the top cover plate, and the screws pass through the top of the top cover plate and are connected to the inner wall of the slot.

[0009] Preferably, side guard plates are extended toward the bottom plate from both sides of the top cover plate, and the side guard plates are connected to the side panels via the bolts.

[0010] Preferably, the top cover plate is further extended with a rear panel toward the bottom plate, and two sides of the rear panel are respectively connected to the two side panels.

[0011] Preferably, the two side panels are provided with gusset plates at both ends, the two gusset plates at the front end are respectively connected to the two sides of the front panel, and the two gusset plates at the rear end are respectively connected to the two sides of the rear panel.

[0012] The one or more technical solutions in the waterproof battery module provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] The inner walls of the two slots are extended toward the top cover plate and abutted against the inside of the top cover plate, and waterproof rubber pads are provided at the abutment points of the inner walls of the two slots and the top cover plate. The existing waterproof rubber pads can effectively prevent water vapor from entering the battery box and contacting the battery cells. However, after long-term use, the waterproof rubber pads are easily oxidized, hardened and deformed, and lose their sealing effectiveness. Therefore, by providing an expansion part, the contact between the waterproof rubber pad and water vapor can be better avoided, and the oxidation process can be delayed. When water vapor enters the battery box, it needs to pass through the slot into the sealed cavity and be absorbed by the expansion part. The water-absorbing and swellable gel in the expansion part expands after absorbing water, thereby pushing the limit plate to fit the inner side of the side panel, improving the fitting strength, and further improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a waterproof battery module provided by an embodiment of the utility model;

[0015] Figure 2 The second schematic diagram of the overall structure of the waterproof battery module provided by the embodiment of the utility model;

[0016] Figure 3 A cross-sectional view of a waterproof battery module provided by an embodiment of the utility model;

[0017] Figure 4 for Figure 3 A structural diagram;

[0018] Among them, the reference numerals in the figure are:

[0019] 1-battery pack, 2-battery box, 21-bottom plate, 211-slot, 212-waterproof rubber pad, 22-front panel, 23-side panel, 231-buckle plate, 24-top cover plate, 25-sealed cavity, 251-limiting plate, 26-side guard plate, 261-rear panel, 3-expansion part, 31-water absorption and expansion gel, 32-elastic colloid layer, 33-partition layer, 34-opening. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In one embodiment of the present invention, Figure 1-Figure 4 As shown, a waterproof battery module is provided, including a battery pack 1 and a battery box 2, wherein the battery pack 1 is fixed in the battery box 2, and the battery box 2 includes a bottom plate 21, a front panel 22, two side panels 23 and a top cover plate 24, wherein the battery pack 1 is fixed to the top of the bottom plate 21, and the two sides of the front panel 22 are respectively connected to the two side panels 23, and slots 211 are respectively provided on both sides of the bottom plate 21, and the two side panels 23 are respectively fixed in the two slots 211, and a sealed cavity 25 is provided between the side panels 23 and the inner side walls of the slots 211, and the outer side walls of the two slots 211 are provided with bolts connected to the side panels 23, and a limiting plate 251 and an expansion portion 3 are provided in the sealed cavity 25, wherein the expansion portion 3 is used to push the limiting plate 251 to be tightly connected to the inner side of the side panel 23, and a water-absorbing and swelling gel 31 is provided in the expansion portion 3.

[0025] Furthermore, the expansion portion 3 includes an elastic colloid layer 32 and a separation layer 33 , the elastic colloid layer 32 is coated on the surface of the separation layer 33 , the surface of the elastic colloid layer 32 abuts against the limiting plate 251 , and the water-absorbing and swelling gel 31 is disposed in the separation layer 33 .

[0026] Furthermore, an opening 34 is provided on one side of the separation layer 33, and the opening 34 passes through the elastic colloid layer 32 and communicates with the inside of the slot 211. Specifically, when the expansion portion 3 absorbs water vapor, the water vapor passes through the opening 34 and is absorbed by the water-absorbing and swelling gel 31, and the water-absorbing and swelling gel 31 expands, and at the same time, the separation layer 33 and the elastic colloid layer 32 expand, and the elastic colloid layer 32 elastically squeezes the limiting plate 251 to press the limiting plate 251 against the inner wall of the side panel 23, thereby further improving the sealing effect.

[0027] Furthermore, the inner side walls of the two slots 211 extend toward the top cover plate 24 and abut against the inside of the top cover plate 24, and waterproof rubber pads 212 are provided at the abutment points of the inner side walls of the two slots 211 and the top cover plate 24. Specifically, by extending the inner side walls of the two slots 211 toward the top cover plate 24 and abutting against the inside of the top cover plate 24, and providing waterproof rubber pads 212 at the abutment points of the inner side walls of the two slots 211 and the top cover plate 24, the existing waterproof rubber pads 212 can effectively prevent water vapor from entering the battery box 2 and contacting the battery cells, and a plurality of screws are provided on the top of the top cover plate 24, and the screws pass through the top of the top cover plate 24 and are connected to the inner side walls of the slots 211. Side guard plates 26 extend toward the bottom plate 21 on both sides of the top cover plate 24, and the side guard plates 26 are connected to the side panels 23 through the bolts. The top cover plate 24 also extends a rear panel 261 toward the bottom plate 21, and the two sides of the rear panel 261 are respectively connected to the two side panels 23. The two side panels 23 are provided with gussets 231 at both ends, and the two gussets 231 at the front end are respectively connected to the two sides of the front panel 22, and the two gussets 231 at the rear end are respectively connected to the two sides of the rear panel 261. Specifically, during assembly, the battery pack 1 is first installed in the middle of the bottom plate 21, and then the two side guards 26 are respectively inserted into the two slots 211, and the side guards 26 are connected to the outer wall of the slot 211 by bolts. Next, the two sides of the front panel 22 and the two sides of the rear panel 261 are respectively connected to the inner sides of the four gussets. After the connection is completed, the four gussets are exposed to the surface of the front panel 22 and the rear panel 261. Finally, the top cover plate 24 is covered. At this time, the bottom of the top cover plate 24 is in contact with the waterproof rubber pad, and the top cover plate 24 is connected to the side panels 23 by bolts.

[0028] Working principle: The inner walls of the two slots 211 extend toward the top cover plate 24 and abut against the inside of the top cover plate 24. Waterproof rubber pads 212 are provided at the abutment points between the inner walls of the two slots 211 and the top cover plate 24. The existing waterproof rubber pads 212 can effectively prevent water vapor from entering the battery box 2 and contacting the battery cells. However, after long-term use, the waterproof rubber pads 212 are easily oxidized, hardened and deformed, and lose their sealing effectiveness. Therefore, by providing the expansion part 3, the contact between the waterproof rubber pad 212 and water vapor can be better avoided, and the oxidation process can be delayed. When water vapor enters the battery box 2, it needs to pass through the slot 211 into the sealing cavity 25 and be absorbed by the expansion part 3. The water-absorbing and swelling gel 31 in the expansion part 3 expands after absorbing water, thereby pushing the limit plate 251 to fit with the inner side of the side panel 23, thereby increasing the fitting strength and further improving the sealing effect.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof battery module, characterized in that: It includes a battery pack and a battery box, the battery pack is fixed in the battery box, the battery box includes a bottom plate, a front panel, two side panels and a top cover plate, the battery pack is fixed on the top of the bottom plate, the two sides of the front panel are respectively connected to the two side panels, slots are respectively provided on both sides of the bottom plate, the two side panels are respectively fixed in the two slots, and a sealed cavity is provided between the side panels and the inner side walls of the slots, the outer side walls of the two slots are provided with bolts connected to the side panels, a limit plate and an expansion part are provided in the sealed cavity, the expansion part is used to push the limit plate to be tightly connected to the inner side of the side panel, and a water-absorbing and swelling gel is provided in the expansion part.

2. The waterproof battery module according to claim 1, characterized in that: The expansion part comprises an elastic colloid layer and a separation layer, the elastic colloid layer is coated on the surface of the separation layer, the surface of the elastic colloid layer is in contact with the limiting plate, and the water-absorbing and swelling gel is arranged in the separation layer.

3. The waterproof battery module according to claim 2, characterized in that: An opening is provided on one side of the separation layer, and the opening passes through the elastic colloid layer and is communicated with the inside of the slot.

4. The waterproof battery module according to claim 1, characterized in that: Side guard plates are extended toward the bottom plate on both sides of the top cover plate, and the side guard plates are connected to the side panels through the bolts.

5. The waterproof battery module according to claim 4, characterized in that: The top cover plate is also provided with a rear panel extending toward the bottom plate, and two sides of the rear panel are respectively connected to the two side panels.

6. The waterproof battery module according to claim 5, characterized in that: The two side panels are provided with gusset plates at both ends, the two gusset plates at the front end are respectively connected to the two sides of the front panel, and the two gusset plates at the rear end are respectively connected to the two sides of the rear panel.

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