Battery pack drainage structure, battery pack shell and battery pack

Abstract

The utility model discloses a battery pack drainage structure, a battery pack shell and a battery panel, the battery pack drainage structure comprises a plate body and a battery upper cover, the battery upper cover is used for being connected with the plate body, the battery upper cover is provided with drainage channels and drainage holes, the number of the drainage channels is four, the four drainage channels are arranged on the periphery of the battery upper cover, and the drainage holes are formed in the periphery of the battery upper cover. The drainage channels on the periphery of the battery upper cover can drain water, so that the battery upper cover has good drainage capacity; each drainage channel comprises a middle part and an end part, the end parts of the four drainage channels are connected in sequence, the drainage holes are formed in the end parts, the middle parts are arranged as the highest points of the drainage channels, and the end parts are arranged as the lowest points of the drainage channels, so that the drainage capacity of the drainage channels can be improved; and the vehicle can complete drainage at different inclination angles, so that residual accumulated water on the upper cover of the battery is avoided, and the battery pack is protected.

Description

Technical Field

[0001] The present application relates to the technical field of battery packs, and in particular to a battery pack drainage structure, a battery pack housing and a battery pack. Background Art

[0002] The new energy vehicle industry is an emerging industry that the country strongly supports. Multiple factors such as policy support, technological progress and consumer demand have jointly promoted the rapid development of China's new energy vehicle market. Existing new energy vehicles generally use battery packs as a power source. The battery packs are generally installed under the floor of the car. The working conditions are harsh. Especially in extreme weather and bad road conditions, the external working environment will greatly affect the safety and reliability of the battery body. Preventing water from invading and causing damage to the battery body is of paramount importance to the safety of new energy vehicles. Existing battery pack covers are prone to residual liquid, which accelerates the corrosion of the cover and makes the battery pack shell have the risk of sealing failure. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a battery pack drainage structure with good drainage effect and capable of enhancing the sealing performance of the battery pack.

[0004] The present application also proposes a battery pack housing having the above-mentioned battery pack drainage structure.

[0005] The present application also proposes a battery pack having the above-mentioned battery pack housing.

[0006] A battery pack drainage structure according to the first aspect of the present application includes:

[0007] plate body;

[0008] A battery upper cover, the battery upper cover is used to connect with the plate body, the battery upper cover is provided with a drainage channel and a drainage hole, and four drainage channels are provided, and the four drainage channels are arranged around the battery upper cover;

[0009] Wherein, the drainage channel includes a middle part and an end part, the end parts of the four drainage channels are connected in sequence, the drainage holes are arranged at the end parts, the middle part is set as the highest point of the drainage channel, and the end parts are set as the lowest point of the drainage channel to guide the water flow to the drainage hole.

[0010] A battery pack drainage structure according to an embodiment of the first aspect of the present application has at least the following beneficial effects: a battery pack drainage structure of the present application comprises a plate body and a battery cover, the battery cover is used to be connected to the plate body, the battery cover is provided with a drainage channel and a drainage hole, four drainage channels are provided, and the four drainage channels are arranged around the battery cover, the drainage channels around the battery cover can all drain water, so that the battery cover has good drainage capacity; the drainage channel comprises a middle part and an end part, the ends of the four drainage channels are connected in sequence, the drainage holes are arranged at the end parts, the middle part is set as the highest point of the drainage channel, and the end part is set as the lowest point of the drainage channel, which can improve the drainage capacity of the drainage channel and guide the water flow to the drainage hole for discharge, the vehicle can complete drainage at different inclination angles, avoid residual water accumulation on the battery cover, and protect the battery pack.

[0011] According to some embodiments of the present application, drainage ribs are provided on the drainage channel.

[0012] According to some embodiments of the present application, the drainage rib and the drainage channel are integrally formed.

[0013] According to some embodiments of the present application, the number of the drainage ribs is set to three, and the three drainage ribs are evenly distributed on the drainage channel.

[0014] According to some embodiments of the present application, the drainage ribs are parallel to each other.

[0015] According to some embodiments of the present application, sealing structures are provided on both sides of the drainage channel, and the sealing structures are provided between the plate body and the battery cover.

[0016] According to some embodiments of the present application, the sealing structure includes a first sealing portion and a second sealing portion, the first sealing portion is arranged on the plate body, and the second sealing portion is arranged on the battery upper cover.

[0017] According to some embodiments of the present application, the first sealing portion is arranged to abut against the second sealing portion.

[0018] A battery pack housing according to an embodiment of the second aspect of the present application includes a battery pack drainage structure of the embodiment of the first aspect mentioned above.

[0019] A battery pack shell according to an embodiment of the second aspect of the present application has at least the following beneficial effects: a battery pack shell of the present application, comprising a battery pack drainage structure of the above-mentioned first aspect embodiment, comprising a plate body and a battery cover, the battery cover is used to be connected to the plate body, the battery cover is provided with a drainage channel and a drainage hole, the drainage channels around the battery cover can drain water, so that the battery cover has good drainage capacity; the drainage channel includes a middle part and an end part, the ends of the four drainage channels are connected in sequence, the drainage holes are arranged at the end parts, the middle part is set as the highest point of the drainage channel, and the end part is set as the lowest point of the drainage channel, the vehicle can complete drainage at different inclination angles, avoid water accumulation on the battery cover, protect the battery pack shell, and improve the service life of the battery pack shell.

[0020] A battery pack according to an embodiment of the third aspect of the present application includes a battery pack shell of the embodiment of the third aspect mentioned above.

[0021] A battery pack according to an embodiment of the third aspect of the present application has at least the following beneficial effects: a battery pack of the present application comprises a battery pack shell of the embodiment of the second aspect mentioned above, and the battery pack shell can improve the drainage performance by using a battery pack drainage structure, and can drain water on all sides, and the vehicle can complete drainage at different inclination angles to avoid residual water accumulation, thereby protecting the battery pack and ensuring the normal and safe use of the battery pack.

[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a structural schematic diagram of a battery pack drainage structure according to an embodiment of the present application;

[0025] Figure 2 is a structural schematic diagram of a battery pack drainage structure from another perspective of an embodiment of the present application;

[0026] Figure 3 yes Figure 2 An enlarged schematic diagram of point A is shown.

[0027] Reference numerals:

[0028] Plate body 100, first sealing portion 110;

[0029] Battery upper cover 200, second sealing portion 210;

[0030] Drainage channel 300, drainage rib 310;

[0031] Drain holes 400. DETAILED DESCRIPTION

[0032] The embodiments of the present application 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 only used to explain the present application, and cannot be understood as limiting the present application.

[0033] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, assembling, and matching should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0036] Refer to the following Figures 1 to 3 A battery pack drainage structure according to an embodiment of the present application is described.

[0037] A battery pack drainage structure according to an embodiment of the present application, such as Figures 1 to 3As shown, it includes a plate body 100 and a battery cover 200, the battery cover 200 is used to connect with the plate body 100, and the battery cover 200 is provided with a drainage channel 300 and a drainage hole 400, the drainage channel 300 guides the water flow, the drainage hole 400 is connected to the outside, the drainage channel 300 guides the water entering the battery cover 200 to the drainage hole 400, and the drainage hole 400 can discharge the water flowing into the battery cover 200 to the outside, so as to avoid the accumulation of water on the battery cover 200, which will corrode the battery cover 200, and protect the internal battery components under the battery cover 200. There are four drainage channels 300, which are arranged around the battery cover 200, and can protect the battery cover 200 around the battery cover 200. The water entering the battery cover 200 from the outside will flow into the drainage channels 300 around the drainage channels 300, and will be discharged in the drainage channels 300, so as to protect the battery cover 200. The ends of the four drainage channels 300 are connected in sequence. The four drainage channels 300 surround the outside of the battery cover 200. No matter from which direction the water flows to the inside of the battery cover 200, it will fall into the drainage channel 300 and be discharged from the drainage channel 300. The drainage channel 300 includes a middle part and an end part. The drainage hole 400 is set at the end part. The middle part is set as the highest point of the drainage channel 300, and the end part is set as the lowest point of the drainage channel 300. Due to the height difference, the water flowing into the drainage channel 300 will flow from the middle part of the drainage channel 300 to the end part and be discharged from the drainage hole 400 set at the end part, thereby improving the drainage capacity of the drainage channel 300. The vehicle can complete drainage at different tilt angles, avoiding water accumulation on the battery cover 200, and protecting the battery pack. It can be understood that when the vehicle goes uphill or downhill, since the middle part is set as the highest point of the drainage channel 300 and the end part is set as the lowest point of the drainage channel 300, no matter what the tilt angle of the vehicle is, both ends of the drainage channel 300 can drain the accumulated water, thereby improving the drainage capacity of the battery cover 200.

[0038] A battery pack drainage structure of the present application includes a plate body 100 and a battery cover 200, the battery cover 200 is used to be connected to the plate body 100, the battery cover 200 is provided with a drainage channel 300 and a drainage hole 400, four drainage channels 300 are provided, and the four drainage channels 300 are arranged around the battery cover 200, and the drainage channels 300 around the battery cover 200 can all drain water, so that the battery cover 200 has good drainage capacity; the drainage channel 300 includes a middle part and an end part, the ends of the four drainage channels 300 are connected in sequence, and the drainage hole 400 is arranged at the end part, the middle part is set as the highest point of the drainage channel 300, and the end part is set as the lowest point of the drainage channel 300, which can improve the drainage capacity of the drainage channel 300, and guide the water flow to the drainage hole 400 for discharge, and the vehicle can complete drainage at different inclination angles, avoid residual water accumulation in the battery cover 200, and protect the battery pack.

[0039] It should be noted that the middle portion is set as the highest point of the drainage channel 300, the end portion is set as the lowest point of the drainage channel 300, and the middle portion and the end portion can be set in a straight line or a curve, both of which can achieve the discharge of accumulated water. According to some embodiments of the present application, the middle portion is inclined toward the end portion. The middle portion is inclined toward the end portion, and the middle portion and the end portion are set in a straight line, and the accumulated water can be quickly discharged from the drainage hole 400. It can be understood that in some embodiments, the middle portion and the end portion are set in a curve, which can also quickly discharge the accumulated water.

[0040] According to some embodiments of the present application, drainage ribs 310 are provided on the drainage channel 300. Specifically, the drainage ribs 310 are provided in the middle of the drainage channel 300. The drainage ribs 310 can divert and guide the water. The originally disorderly flowing accumulated water can flow along the path formed by the drainage ribs 310, thereby improving the efficiency of draining the accumulated water. In some embodiments, two or more drainage ribs 310 are provided. The provision of two or more drainage ribs 310 can form multiple drainage paths, which can effectively divert and reduce the turbulence phenomenon, improve the efficiency of draining the accumulated water, and prevent the occurrence of abnormal noise. As a preferred method, in some embodiments, the number of drainage ribs 310 is set to three, and the three drainage ribs 310 are evenly distributed on the drainage channel 300.

[0041] According to some embodiments of the present application, the drainage rib 310 is integrally formed with the drainage channel 300. The drainage rib 310 is arranged on the drainage channel 300, and the drainage rib 310 and the drainage channel 300 are integrally formed, which can reduce the installation process and the processing process, improve the production efficiency, and ensure the stability of the drainage rib 310 on the drainage channel 300.

[0042] According to some embodiments of the present application, the drainage ribs 310 are parallel to each other. The drainage ribs 310 are arranged in parallel on the drainage channel 300, the distance between the parallel drainage ribs 310 is the same, and the width of the accumulated water flow path formed between the drainage ribs 310 is the same, which can improve the uniformity of the accumulated water flow. In some embodiments, the drainage ribs 310 are arranged in a straight line, and the straight-line drainage ribs 310 directly lead to the drainage holes 400 located at the end, which can form an optimal drainage path and improve drainage efficiency.

[0043] According to some embodiments of the present application, both sides of the drainage channel 300 are provided with sealing structures, and the sealing structures are arranged between the plate body 100 and the battery cover 200. The drainage channel 300 is arranged on the outside of the battery cover 200, and the drainage channel 300 forms a recessed portion in the battery cover 200. The plate body 100 and the battery cover 200 on both sides of the drainage channel 300 are in contact with each other. Specifically, both sides of the drainage channel 300 are provided with sealing structures, and the sealing structures are arranged between the plate body 100 and the battery cover 200. The sealing structure on the outside of the drainage channel 300 forms a first seal, which is used to prevent water from entering the drainage channel 300 from the outside, greatly reducing the amount of water entering; the sealing structure on the inside of the drainage channel 300 forms a second seal, which is used to prevent water from entering the battery cover 200 on the inside of the drainage channel 300. The first seal and the second seal are combined to form a double seal, and the drainage performance and sealing performance can be improved with the arrangement of the drainage channel 300, thereby protecting the safety of the battery pack.

[0044] According to some embodiments of the present application, the sealing structure includes a first sealing portion 110 and a second sealing portion 210, wherein the first sealing portion 110 is disposed on the plate body 100, and the second sealing portion 210 is disposed on the battery cover 200. The sealing structure is disposed between the plate body 100 and the battery cover 200. Specifically, the sealing structure includes a first sealing portion 110 disposed on the plate body 100 and a second sealing portion 210 disposed on the battery cover 200. The plate body 100 and the battery cover 200 are abutted by the first sealing portion 110 and the second sealing portion 210, so as to seal the plate body 100 and the battery cover 200, and have a good sealing effect. In some embodiments, the first sealing portion 110 is disposed abutting the second sealing portion 210. As a preferred embodiment, both the first sealing part 110 and the second sealing part 210 are provided with staggered connecting teeth. When the plate body 100 and the battery cover 200 are in contact with each other, the first sealing part 110 contacts the second sealing part 210, and the connecting teeth of the first sealing part 110 and the connecting teeth of the second sealing part 210 are staggered, which can improve the waterproof effect. In some other embodiments, the first sealing part 110 and the second sealing part 210 are fixed by glue. The first sealing part 110 and the second sealing part 120 are fixed by glue, which can strengthen the connection strength and sealing performance between the first sealing part 110 and the second sealing part 120, and ensure the waterproof effect.

[0045] According to the battery pack shell of the second embodiment of the present application, it includes a battery pack drainage structure of the first embodiment. A battery pack shell of the present application includes a battery pack drainage structure of the first embodiment, including a plate body 100 and a battery cover 200, the battery cover 200 is used to connect with the plate body 100, the battery cover 200 is provided with a drainage channel 300 and a drainage hole 400, the drainage channels 300 around the battery cover 200 can all be drained, so that the battery cover 200 has good drainage capacity; the drainage channel 300 includes a middle part and an end part, the ends of the four drainage channels 300 are connected in sequence, the drainage hole 400 is arranged at the end part, the middle part is set as the highest point of the drainage channel 300, and the end part is set as the lowest point of the drainage channel 300, the vehicle can complete drainage at different tilt angles, avoid water accumulation on the battery cover 200, protect the battery pack shell, and improve the service life of the battery pack shell.

[0046] A battery pack according to an embodiment of the third aspect of the present application includes a battery pack shell of the embodiment of the third aspect above. A battery pack of the present application includes a battery pack shell of the embodiment of the second aspect above. The battery pack shell can drain water on all sides by using a battery pack drainage structure, which can improve the drainage performance; the middle part of the drainage channel 300 is set as the highest point of the drainage channel 300, and the end is set as the lowest point of the drainage channel 300. The vehicle can complete drainage at different tilt angles to avoid residual water accumulation, protect the battery pack, and ensure the normal and safe use of the battery pack.

[0047] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A battery pack drainage structure, characterized in that: include: plate body; A battery upper cover, the battery upper cover is used to connect with the plate body, the battery upper cover is provided with a drainage channel and a drainage hole, and four drainage channels are provided, and the four drainage channels are arranged around the battery upper cover; Wherein, the drainage channel includes a middle part and an end part, the end parts of the four drainage channels are connected in sequence, the drainage holes are arranged at the end parts, the middle part is set as the highest point of the drainage channel, and the end parts are set as the lowest point of the drainage channel to guide the water flow to the drainage hole.

2. A battery pack drainage structure according to claim 1, characterized in that: The drainage channel is provided with drainage ribs.

3. A battery pack drainage structure according to claim 2, characterized in that: The drainage ribs are integrally formed with the drainage channel.

4. A battery pack drainage structure according to claim 2, characterized in that: The number of the drainage ribs is set to three, and the three drainage ribs are evenly distributed on the drainage channel.

5. A battery pack drainage structure according to claim 3, characterized in that: The drainage ribs are parallel to each other.

6. A battery pack drainage structure according to claim 1, characterized in that: Sealing structures are arranged on both sides of the drainage channel, and the sealing structures are arranged between the plate body and the battery upper cover.

7. A battery pack drainage structure according to claim 6, characterized in that: The sealing structure includes a first sealing portion and a second sealing portion, wherein the first sealing portion is arranged on the plate body, and the second sealing portion is arranged on the battery upper cover.

8. A battery pack drainage structure according to claim 7, characterized in that: The first sealing portion is disposed in contact with the second sealing portion.

9. A battery pack housing, characterized in that: A battery pack drainage structure comprising any one of claims 1 to 8.

10. A battery pack, characterized in that: A battery pack casing comprising the battery pack casing as claimed in claim 9.

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