A waterproof battery pack

Abstract

The utility model discloses a waterproof battery pack, include: casing, lid, joint structure, sealing washer and electric core module, lid sets up at the top of casing, joint structure sets up in the inside of casing and lid, sealing washer is set up between casing and lid through joint structure, electric core module sets up in casing, through setting up joint structure on casing and lid, make casing and lid mounting fixed, to seal battery pack, because joint structure sets up in the inside of casing and lid, make joint structure not easy to be subjected to outside impact and lead to falling, install sealing washer between casing and lid through joint structure, further promoted the sealing performance of battery pack, like this, simultaneously adopt two kinds of mode of joint structure and install sealing washer to seal battery pack, make battery pack have IP68 level waterproof performance, to make the electric core module in battery pack get sufficient protection, avoided the battery pack to appear to go into the water phenomenon and lead to internal short circuit damage.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a waterproof battery pack. Background Technology

[0002] Currently, the waterproof structure of battery pack casings generally achieves protection requirements through casing sealing, typically using methods such as fastener fixing, ultrasonic welding, and glue injection. When using fastener fixing, it's necessary to consider whether the fasteners will loosen, as this will reduce the battery pack's waterproof performance. Ultrasonic welding generally only achieves an IPX5 waterproof rating, which is insufficient for long-term stable battery operation. Glue injection is prone to degradation due to the adhesive being affected by temperature and humidity. Therefore, the waterproof structure of small battery casings has always been a crucial design element. If the battery pack's waterproofing is inadequate and water ingress occurs, it will directly lead to internal short circuits and damage to the battery pack. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a waterproof battery pack.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A waterproof battery pack includes: a housing, a cover, a snap-fit ​​structure, a sealing ring, and a battery cell module. The cover is disposed above the housing, the snap-fit ​​structure is disposed inside the housing and the cover, the sealing ring is disposed between the housing and the cover via the snap-fit ​​structure, and the battery cell module is disposed inside the housing.

[0006] In one embodiment, the snap-fit ​​structure includes a snap-fit ​​part and a snap-fit ​​hole. The snap-fit ​​part is disposed on the housing, and the snap-fit ​​hole is disposed on the cover. The snap-fit ​​part is connected to the snap-fit ​​hole.

[0007] In one embodiment, the four corners of the housing are provided with first through holes, and the four corners of the cover are provided with fixing holes. Each first through hole and each fixing hole are provided in a one-to-one correspondence. A fastener is passed through the first through hole, and one end of the fastener is bolted or snapped into the fixing hole.

[0008] The sealing ring includes a positioning part, which is disposed between the first through hole and the fixing hole. The positioning part has a second through hole, which is aligned with the first through hole and the fixing hole.

[0009] In one embodiment, the cover includes a clearance groove disposed above the battery cell module.

[0010] In one embodiment, the battery module includes multiple battery components and multiple limiting plates, with each battery component being fitted together and each limiting plate being disposed on the side of each battery component close to the housing.

[0011] In one embodiment, the housing includes a plurality of engaging plates, each engaging plate being disposed within the housing and each engaging plate being connected to a limiting plate.

[0012] In one embodiment, the housing further includes a protective plate disposed on one side of the battery cell module.

[0013] In one embodiment, the housing further includes an output port, an input port, and a button light panel. The output port is located at the bottom of the housing, and the input port and the button light panel are located on one side of the housing.

[0014] In one embodiment, two latching assemblies are also included. The housing includes a first fixing part and a second fixing part. The first fixing part is disposed between the input port and the keypad, and the second fixing part is disposed on the side away from the first fixing part. The two latching assemblies are respectively disposed on the first fixing part and the second fixing part. The latching assemblies are used to fix the housing to the host.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] This utility model relates to a waterproof battery pack.

[0017] By incorporating snap-fit ​​structures on the casing and cover, the casing and cover are fixed in place, thus sealing the battery pack. Since the snap-fit ​​structures are located on the inner side of the casing and cover, they are less susceptible to detachment due to external impacts. A sealing ring is installed between the casing and cover using the snap-fit ​​structure, further enhancing the battery pack's sealing performance. Thus, by simultaneously employing both snap-fit ​​structures and sealing rings to seal the battery pack, it achieves an IP68 waterproof rating, effectively protecting the internal battery cell modules and preventing water ingress that could lead to internal short circuits and damage. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0019] Figure 1 This is a schematic diagram of the structure of a waterproof battery pack according to one embodiment of the present invention;

[0020] Figure 2This is another structural schematic diagram of a waterproof battery pack according to one embodiment of the present invention;

[0021] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0022] Figure 4 for Figure 1 A schematic diagram of the shell structure in the middle;

[0023] Figure 5 for Figure 1 A schematic diagram of the structure of the cover;

[0024] Figure 6 This is a schematic diagram of the bottom structure of a waterproof battery pack according to one embodiment of the present invention.

[0025] Reference numerals: 10, battery pack; 100, housing; 200, cover; 300, snap-fit ​​structure; 400, sealing ring; 500, cell module; 310, snap-fit ​​part; 320, snap-fit ​​hole; 110, first through hole; 210, fixing hole; 600, fastener; 410, positioning part; 411, second through hole; 220, clearance groove; 510, battery assembly; 520, limiting plate; 120, snap-fit ​​plate; 130, protection plate; 140, output port; 150, input port; 160, button light panel; 700, buckle assembly; 170, first fixing part; Detailed Implementation

[0026] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0027] Please see Figures 1 to 6A waterproof battery pack 10 includes: a housing 100, a cover 200, a snap-fit ​​structure 300, a sealing ring 400, and a battery cell module 500. The cover 200 is disposed above the housing 100, the snap-fit ​​structure 300 is disposed inside the housing 100 and the cover 200, the sealing ring 400 is disposed between the housing 100 and the cover 200 through the snap-fit ​​structure 300, and the battery cell module 500 is disposed inside the housing 100. It should be noted that by providing a snap-fit ​​structure 300 on the housing 100 and the cover 200, the housing 100 and the cover 200 are fixedly installed, thereby sealing the battery pack 10. Since the snap-fit ​​structure 300 is located on the inner side of the housing 100 and the cover 200, it is not easily dislodged by external impacts. By installing a sealing ring 400 between the housing 100 and the cover 200 through the snap-fit ​​structure 300, the sealing performance of the battery pack 10 is further improved. Thus, by using both the snap-fit ​​structure 300 and the sealing ring 400 to seal the battery pack 10, the battery pack 10 has an IP68 waterproof rating, thereby providing sufficient protection for the internal cell module 500 and preventing water ingress that could lead to internal short circuit damage.

[0028] In one embodiment, the snap-fit ​​structure 300 includes a snap-fit ​​part 310 and a snap-fit ​​hole 320. The snap-fit ​​part 310 is disposed on the housing 100, and the snap-fit ​​hole 320 is disposed on the cover 200. The housing 100 and the cover 200 are fixedly installed by connecting the snap-fit ​​part 310 and the snap-fit ​​hole 320. There are six snap-fit ​​parts 310 and six snap-fit ​​holes 320. Each snap-fit ​​part 310 and each snap-fit ​​hole 320 is provided in a one-to-one correspondence, which further improves the connection effect between the housing 100 and the cover 200, thereby further improving the sealing performance of the battery pack 10.

[0029] Please see Figures 1 to 3 In one embodiment, the four corners of the housing 100 are provided with first through holes 110, and the four corners of the cover 200 are provided with fixing holes 210. Each first through hole 110 and each fixing hole 210 are provided in a one-to-one correspondence. Fasteners 600 are passed through the first through holes 110. When the battery pack 10 is subjected to external stress, the battery can be evenly stressed, avoiding excessive local stress on the battery pack 10, which would cause the connection structure between the housing 100 and the cover 200 to loosen. This further improves the sealing strength of the battery pack 10. One end of the fastener 600 is bolted or snapped into the fixing hole 210. Since the strength of the bolted connection is greater than that of the snapped connection, in order to ensure the strength of the fixed connection between the housing 100 and the cover 200, preferably, one end of the fastener 600 is fixed to the fixing hole 210 by bolting.

[0030] Please see Figures 1 to 5In one embodiment, the sealing ring 400 includes a positioning part 410, which is disposed between the first through hole 110 and the fixing hole 210. The positioning part 410 has a second through hole 411, which is aligned with the first through hole 110 and the fixing hole 210. When the housing 100 and the cover 200 are connected and fixed by the fastener 600, the fastener 600 passes through the first through hole 110, the second through hole 411 and the fixing hole 210 in sequence, thereby improving the accuracy of the sealing ring 400 in the mounting groove and preventing the sealing ring 400 from shifting position during the use of the battery pack 10.

[0031] Please see Figure 5 In one embodiment, the cover 200 includes a clearance groove 220, which is disposed above the cell module 500. The clearance groove 220 occupies 5% of the internal space of the battery pack 10. This arrangement prevents the cell module 500 from expanding after prolonged use, which would cause the shell 100 and the cover 200 to be squeezed and deformed.

[0032] Please see Figure 4 In one embodiment, the battery cell module 500 includes multiple battery components 510 and multiple limiting plates 520. The number of battery components 510 is the same as the number of limiting plates 520. Each battery component 510 is fitted together, so that the battery pack 10 has more internal space and can install larger volume battery components 510, thereby improving the battery pack 10's range. Since the individual battery cells on the battery components 510 are stacked, during the use of the battery pack 10, the individual battery cells are prone to shaking and colliding with the housing 100 and the cover 200. By setting each limiting plate 520 on the side of each battery component 510 close to the housing 100, the individual battery cells on the battery components 510 can be limited, which can prevent the individual battery cells from shaking and thus prevent the sealing structure of the housing 100 and the cover 200 from being affected.

[0033] Please refer to it again. Figure 4 In one embodiment, the housing 100 includes a plurality of locking plates 120, each locking plate 120 being disposed within the housing 100. The number of locking plates 120 is the same as the number of limiting plates 520. Each locking plate 120 is connected to each limiting plate 520 to further limit the battery assembly 510, thereby making the individual battery cells more stable inside the battery pack 10.

[0034] Please refer to it again. Figure 4 Please refer to it again. Figure 4In one embodiment, the housing 100 further includes a protection plate 130, which is disposed on one side of the cell module 500. The protection plate 130 is used to protect the cell module 500 and prevent the cell module 500 from overcharging, over-discharging, overheating, overcurrent and short circuit, thereby improving the service life of the battery pack 10.

[0035] Please see Figure 1 and Figure 6 In one embodiment, the housing 100 further includes an output port 140, an input port 150, and a button light panel 160. The output port 140 is located at the bottom of the housing 100, and the input port 150 and the button light panel 160 are located on one side of the housing 100. By placing the output port 140 and the input port 150 on different sides of the housing 100, it is not easy for external moisture to accumulate on the housing 100. The button light panel 160 is mainly used to control the usage status of the battery pack 10 and display the remaining power.

[0036] Please see Figure 1 In one embodiment, the housing 100 further includes two latching assemblies 700. The housing 100 includes a first fixing part 170 and a second fixing part. The first fixing part 170 is disposed between the input port 150 and the keypad 160, and the second fixing part is disposed on the side away from the first fixing part 170. The two latching assemblies 700 are respectively disposed on the first fixing part 170 and the second fixing part. The latching assemblies 700 are used to fix the housing 100 to the host, thereby fixing the battery pack 10 to the host and preventing the battery pack 10 from shifting under external stress. Optionally, a third fixing part and a fourth fixing part are disposed on the other two sides of the housing 100. The latching assemblies 700 are disposed on the third fixing part and the fourth fixing part to further improve the fixing effect of the battery pack 10 on the host.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waterproof battery pack, characterized in that, include: The device comprises a housing, a cover, a snap-fit ​​structure, a sealing ring, and a battery cell module. The cover is disposed on top of the housing, the snap-fit ​​structure is disposed on the inner side of the housing and the cover, the sealing ring is disposed between the housing and the cover via the snap-fit ​​structure, and the battery cell module is disposed inside the housing. The snap-fit ​​structure includes a snap-fit ​​part and a snap-fit ​​hole. The snap-fit ​​part is disposed on the housing, and the snap-fit ​​hole is disposed on the cover. The snap-fit ​​part is connected to the snap-fit ​​hole. The shell has a first through hole at each of its four corners, and the cover has a fixing hole at each of its four corners. Each first through hole corresponds to each fixing hole. A fastener is inserted through the first through hole, and one end of the fastener is bolted or snapped into the fixing hole. The sealing ring includes a positioning part, which is disposed between the first through hole and the fixing hole. The positioning part has a second through hole, which is aligned with the first through hole and the fixing hole.

2. A waterproof battery pack according to claim 1, characterized in that, The cover includes a clearance groove, which is disposed above the battery cell module.

3. A waterproof battery pack according to claim 2, characterized in that, The battery cell module includes multiple battery components and multiple limiting plates. Each battery component is attached to the other, and each limiting plate is disposed on the side of each battery component near the housing.

4. A waterproof battery pack according to claim 3, characterized in that, The housing includes multiple locking plates, each of which is disposed within the housing and is connected to each of the limiting plates.

5. A waterproof battery pack according to claim 4, characterized in that, The housing also includes a protective plate, which is disposed on one side of the battery cell module.

6. A waterproof battery pack according to claim 5, characterized in that, The housing also includes an output port, an input port, and a button light panel. The output port is located at the bottom of the housing, and the input port and the button light panel are located on one side of the housing.

7. A waterproof battery pack according to claim 6, characterized in that, It also includes two latching assemblies. The housing includes a first fixing part and a second fixing part. The first fixing part is disposed between the input port and the keypad, and the second fixing part is disposed on the side away from the first fixing part. The two latching assemblies are respectively disposed on the first fixing part and the second fixing part. The latching assemblies are used to fix the housing to the host.

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