Underwater columnar lithium battery pack

Abstract

The utility model provides an underwater columnar lithium battery pack, which relates to the technical field of lithium battery packs and comprises a box body, a box cover is arranged at the top end of the box body, fixing seats are symmetrically arranged on the left side and the right side of the box body close to the top end, and first threaded rods are arranged at the bottoms of the fixing seats in a penetrating manner. A glue injection groove is formed in the top end, close to the periphery, of the box body in a surrounding mode, a containing groove is formed in the box body, a negative electrode connecting piece is arranged at the bottom of the containing groove, and supporting plates are symmetrically arranged in the containing groove and close to the top end and the bottom; glue is injected into the glue injection groove through the glue injection opening to seal a gap between the box body and the box cover, the waterproof effect is achieved, the columnar lithium battery main body can be fixed through the supporting plate and the fixing groove, the glue can be prevented from being in contact with the columnar lithium battery main body through cooperation with the use of the baffle, the maintenance and replacement convenience is greatly improved, and the practicability is high. And the practicability is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery packs, in particular to an underwater cylindrical lithium battery pack. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. With the development of the economy and technology, the country has also put higher requirements on environmental protection. As an emerging clean energy source, lithium batteries have gradually replaced lead-acid batteries and nickel-cadmium batteries due to their advantages such as stable discharge voltage, wide operating temperature range, low self-discharge rate, long storage life, no memory effect, small size, light weight and pollution-free. They have become the mainstream power battery and are widely used in various fields.

[0003] At present, when cylindrical lithium battery packs are used in some underwater environments, they need to be waterproofed. Usually, glue encapsulation is adopted. However, this method has certain disadvantages. The sealing glue wraps the lithium battery, which is not convenient to disassemble when it needs to be repaired or replaced, and its practicality is insufficient. Therefore, we propose an underwater cylindrical lithium battery pack. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings of the prior art. At present, when cylindrical lithium battery packs are used in some underwater environments, they need to be waterproofed. Usually, glue encapsulation is adopted. However, this method has certain disadvantages. The glue encapsulation wraps the lithium battery, which is not convenient to disassemble when it needs to be repaired or replaced, and is not practical enough.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An underwater cylindrical lithium battery pack includes a box body, and a box cover is provided on the top of the box body;

[0007] The left and right sides of the box body are symmetrically provided with fixing seats near the top, the bottom of the fixing seat is provided with a first threaded rod through the top, the top of the box body is provided with a glue injection groove around the periphery, the inside of the box body is provided with a placement groove, the bottom of the placement groove is provided with a negative electrode connecting piece, the inside of the placement groove is symmetrically provided with a support plate near the top and bottom, the top of the support plate is evenly provided with a plurality of fixing grooves, the inside of the fixing groove is provided with a cylindrical lithium battery body, and a baffle is provided around the periphery of the support plate near the top;

[0008] The top of the box cover is provided with glue injection ports near all sides, the top of the box cover is provided with a plurality of second threaded rods equidistant from front to back near the left and right sides, and the bottom of the box cover is provided with a positive electrode connecting piece near the center.

[0009] As a preferred solution of the present invention, the fixing seat is fixedly connected to the box body, and the first threaded rod is adapted to the fixing seat.

[0010] The technical effect of adopting the above further solution is that the first threaded rod can be rotated to push the protrusions on both sides of the box cover, thereby assisting the opening of the box cover and improving practicality.

[0011] As a preferred solution of the present invention, the negative electrode connecting piece is fixedly connected to the placement groove, the support plate is fixedly connected to the placement groove, and the cylindrical lithium battery body is adapted to the fixing groove.

[0012] The technical effect of adopting the above further solution is: the fixed connection between the support plate and the placement groove can make it more secure, and the cylindrical lithium battery body can be fixed by adapting to the fixing groove to prevent it from loosening and improve the stability of use.

[0013] As a preferred solution of the present invention, the height of the baffle exceeds that of the cylindrical lithium battery body, and the baffle is fixedly connected to the support plate.

[0014] The technical effect of adopting the above further solution is that the baffle can block the glue overflowing into the placement groove during the glue injection process, preventing it from contacting the cylindrical lithium battery body, making it easier to repair and replace.

[0015] As a preferred solution of the present invention, the glue injection port is communicated with the glue injection groove, and a sealing cover is provided on the outer periphery of the glue injection port, and the sealing cover is threadedly connected to the glue injection port.

[0016] The technical effect of adopting the above further solution is: by connecting the glue injection port and the glue injection groove, glue can be injected into the glue injection groove through the glue injection port to achieve the purpose of sealing the box body, and the glue injection port can be sealed by the sealing cover.

[0017] As a preferred solution of the present invention, the second threaded rod is adapted to the box cover, a threaded opening is provided at the top of the box body corresponding to the second threaded rod, and the second threaded rod is adapted to the threaded opening.

[0018] The technical effect of adopting the above further solution is: through the adaptation of the second threaded rod and the threaded opening, the second threaded rod can be rotated to be immersed in the threaded opening, thereby completing the fixation between the box body and the box cover and improving the stability in use.

[0019] As a preferred solution of the present invention, electrode ports are symmetrically provided at the top of the box cover near the center, and the negative electrode connecting piece and the positive electrode connecting piece are electrically connected to the corresponding electrode ports.

[0020] The technical effect of adopting the above further solution is that the positive and negative electrodes of the cylindrical lithium battery body can be extended to the top of the box cover through the electrode port, which can facilitate the connection operation of external wires.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] In the utility model, through the design of the box body and the box cover, the glue is injected into the glue injection groove through the glue injection port to seal the gap between the box body and the box cover, preventing water from entering the placement groove, thereby achieving a waterproof effect. The cylindrical lithium battery body can be fixed by the support plate and the fixing groove to prevent it from loosening. The use of the baffle can prevent the glue from contacting the cylindrical lithium battery body, greatly improving the convenience of maintenance and replacement, and effectively improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an underwater cylindrical lithium battery pack provided by the utility model;

[0024] Figure 2 This is a schematic diagram of the overall expanded structure of an underwater cylindrical lithium battery pack provided by the utility model;

[0025] Figure 3 This is an anatomical diagram of the overall front structure of an underwater cylindrical lithium battery pack provided by the utility model.

[0026] Legend: 1. Box body; 101. Fixing seat; 102. First threaded rod; 103. Glue injection groove; 104. Placement groove; 105. Negative electrode connecting piece; 106. Support plate; 107. Fixing groove; 108. Cylindrical lithium battery body; 109. Baffle; 110. Threaded port; 2. Box cover; 201. Glue injection port; 2011. Sealing cover; 202. Second threaded rod; 203. Positive electrode connecting piece; 204. Electrode port. DETAILED DESCRIPTION

[0027] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to relevant references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] Example 1

[0032] like Figure 1-3 As shown, the utility model provides a technical solution: an underwater cylindrical lithium battery pack, including a box body 1, a box cover 2 is provided at the top of the box body 1, a fixing seat 101 is symmetrically provided on the left and right sides of the box body 1 near the top, a first threaded rod 102 is provided at the bottom of the fixing seat 101 through the top, a glue injection groove 103 is provided around the top of the box body 1 near the periphery, a placement groove 104 is provided inside the box body 1, a negative electrode connecting piece 105 is provided at the bottom of the placement groove 104, and the inside of the placement groove 104 is close to the bottom. Support plates 106 are symmetrically arranged at the top and bottom, and a number of fixing grooves 107 are evenly opened at the top of the support plate 106. A cylindrical lithium battery body 108 is arranged inside the fixing groove 107. A baffle 109 is arranged around the outer periphery of the support plate 106 near the top. Glue injection ports 201 are opened near the top and the sides of the box cover 2. A number of second threaded rods 202 are equidistantly arranged from front to back near the left and right sides of the top of the box cover 2. A positive electrode connecting piece 203 is installed near the center of the bottom of the box cover 2.

[0033] Example 2

[0034] like Figure 1-3As shown, the fixing seat 101 is fixedly connected to the box body 1, the first threaded rod 102 is adapted to the fixing seat 101, and the first threaded rod 102 can be rotated to push the protrusions on both sides of the box cover 2, thereby assisting the opening of the box cover 2 and improving practicality. The negative electrode connecting piece 105 is fixedly connected to the placement groove 104, the support plate 106 is fixedly connected to the placement groove 104, and the cylindrical lithium battery body 108 is adapted to the fixing groove 107. The fixed connection between the support plate 106 and the placement groove 104 can make it more secure. The cylindrical lithium battery body 108 is adapted to the fixing groove 107, and the cylindrical lithium battery body 108 can be fixed to prevent it from loosening and improve the stability of use. The height of the baffle 109 exceeds the cylindrical lithium battery body 108. The baffle 109 is fixedly connected to the support plate 106. The baffle 109 can block the glue overflowing into the placement groove 104 during the glue injection process to prevent it from contacting the cylindrical lithium battery body 108, which is convenient for maintenance and replacement. The glue injection port 201 is connected to the glue injection groove 103, and the glue injection port 201 is connected to the glue injection groove 103. The outer sleeve is provided with a sealing cover 2011, which is threadedly connected to the glue injection port 201. The glue injection port 201 is connected to the glue injection groove 103, and the glue can be injected into the glue injection groove 103 through the glue injection port 201 to achieve the purpose of sealing the box body 1. The glue injection port 201 can be sealed by the sealing cover 2011. The second threaded rod 202 is adapted to the box cover 2. The top of the box body 1 is provided with a threaded opening 110 corresponding to the second threaded rod 202. The second threaded rod 202 is adapted to the threaded opening 110. The rod 202 is compatible with the threaded opening 110, and the second threaded rod 202 can be rotated to be immersed in the threaded opening 110 to complete the fixation between the box body 1 and the box cover 2, thereby improving the stability of use. The electrode ports 204 are symmetrically arranged on the left and right near the center of the top of the box cover 2. The negative electrode connecting piece 105 and the positive electrode connecting piece 203 are electrically connected to the corresponding electrode ports 204. The positive and negative poles of the cylindrical lithium battery body 108 can extend to the top of the box cover 2 through the electrode port 204, which can facilitate the connection operation of external wires.

[0035] The working process of the present invention is as follows: when waterproofing an underwater cylindrical lithium battery pack by injecting glue, first rotate the sealing cover 2011 to disengage it from the glue injection port 201, and inject glue into the glue injection groove 103 through the glue injection port 201 to complete the waterproof glue injection operation, which can prevent water from flowing into the placement groove 104 and achieve a waterproof effect. During the process, the baffle 109 can prevent the glue from contacting the cylindrical lithium battery body 108. After a period of use, when maintenance and replacement are required, the second threaded rod 202 is rotated to disengage it from the threaded port 110, and the first threaded rod 102 is rotated to move it upward to lift the protrusions at both ends of the box cover 2, thereby expanding the gap between the box cover 2 and the box body 1, and supporting the gap to prevent it from closing again. Finally, use a tool to pry the gap to separate the box cover 2 from the box body 1, and then start to repair and replace the cylindrical lithium battery body 108, which greatly improves the convenience of maintenance and replacement and effectively improves practicality.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater cylindrical lithium battery pack, comprising a box body (1), characterized in that: A box cover (2) is provided at the top end of the box body (1); The box body (1) is symmetrically provided with fixing seats (101) at the top end on both sides thereof, a first threaded rod (102) is provided at the bottom of the fixing seat (101) and passes through the top end thereof, a glue injection groove (103) is provided at the top end of the box body (1) and around the periphery thereof, a placement groove (104) is provided inside the box body (1), a negative electrode connecting piece (105) is provided at the bottom of the placement groove (104), a support plate (106) is symmetrically provided at the top end and the bottom end thereof, a plurality of fixing grooves (107) are evenly provided at the top end of the support plate (106), a columnar lithium battery body (108) is provided inside the fixing groove (107), and a baffle (109) is provided around the periphery of the support plate (106) near the top end; The top of the box cover (2) is provided with glue injection ports (201) near all sides, and a plurality of second threaded rods (202) are provided at equal distances from front to back near the left and right sides of the top of the box cover (2). A positive electrode connecting piece (203) is installed near the center of the bottom of the box cover (2).

2. The underwater cylindrical lithium battery pack according to claim 1, characterized in that: The fixing seat (101) is fixedly connected to the box body (1), and the first threaded rod (102) is adapted to the fixing seat (101).

3. The underwater cylindrical lithium battery pack according to claim 1, characterized in that: The negative electrode connecting piece (105) is fixedly connected to the placement groove (104), the support plate (106) is fixedly connected to the placement groove (104), and the columnar lithium battery body (108) is adapted to the fixing groove (107).

4. The underwater cylindrical lithium battery pack according to claim 1, characterized in that: The height of the baffle (109) exceeds that of the columnar lithium battery body (108), and the baffle (109) is fixedly connected to the support plate (106).

5. The underwater cylindrical lithium battery pack according to claim 1, characterized in that: The glue injection port (201) is communicated with the glue injection groove (103); a sealing cover (2011) is provided on the periphery of the glue injection port (201); and the sealing cover (2011) is threadedly connected to the glue injection port (201).

6. The underwater cylindrical lithium battery pack according to claim 1, characterized in that: The second threaded rod (202) is adapted to the box cover (2); a threaded opening (110) is provided at the top end of the box body (1) corresponding to the second threaded rod (202); and the second threaded rod (202) is adapted to the threaded opening (110).

7. The underwater cylindrical lithium battery pack according to claim 1, characterized in that: Electrode ports (204) are symmetrically arranged at the top of the box cover (2) near the center, and the negative electrode connecting piece (105) and the positive electrode connecting piece (203) are electrically connected to the corresponding electrode ports (204).

Images