Portable lithium battery constant temperature device used in cold weather in winter

Abstract

The utility model relates to the field of lithium batteries, in particular to a portable lithium battery constant temperature device used in cold weather in winter, which comprises an upper protection box, a lower protection box, a first accommodating box, a second accommodating box, a phase change material bag and a quick locking assembly, the upper protection box and the lower protection box are both provided with box openings, and the box openings are oppositely arranged; the first containing box is fixedly arranged in the upper protection box, the second containing box is fixedly arranged in the lower protection box, the phase change material bags are arranged between the upper protection box and the first containing box and between the lower protection box and the second containing box, and the rapid locking assemblies are arranged at the ends of the upper protection box and the lower protection box. And the effects of keeping the lithium battery at a constant temperature and preventing the performance of the lithium battery from being reduced in a low-temperature environment in cold weather in winter are achieved.

Description

Technical Field

[0001] The present application relates to the field of lithium batteries, and in particular to a portable lithium battery constant temperature device for use in cold winter climates. Background Art

[0002] Currently, lithium batteries have the advantages of high energy density, long cycle life and light weight, so they are widely used in mobile electronic devices, electric vehicles and energy storage systems.

[0003] The existing lithium battery is a secondary battery, also known as a rechargeable lithium battery. It is a battery that uses lithium ions to move between positive and negative electrodes to store and release electrical energy.

[0004] The above-mentioned existing technical solutions have the following defects: the performance of current lithium batteries is poor in cold winter temperatures, especially in an environment of -30°C. The low-performance lithium batteries interfere with the daily use of electronic devices carrying lithium batteries. Utility Model Content

[0005] In order to keep the lithium battery at a constant temperature in cold winter climates and prevent the low temperature environment from reducing the performance of the lithium battery, the present application provides a portable lithium battery constant temperature device for use in cold winter climates.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A portable lithium battery constant temperature device for use in cold winter climates, comprising an upper protective box, a lower protective box, a first containing box, a second containing box, a phase change material pack and a quick locking assembly. The upper protective box and the lower protective box are both provided with box openings and the box openings are arranged relative to each other. The first containing box is fixedly arranged in the upper protective box, and the second containing box is fixedly arranged in the lower protective box. The phase change material pack is arranged between the upper protective box and the first containing box and between the lower protective box and the second containing box. The quick locking assembly is arranged at the ends of the upper protective box and the lower protective box.

[0008] By adopting the above technical solution, the lithium battery can be protected by setting up an upper protective box, a lower protective box, a first containing box and a second containing box to prevent the lithium battery from being physically damaged. The heat emitted by the lithium battery can be absorbed by the phase change material package by setting up the phase change material package, so that the temperature in the upper protective box and the lower protective box will not be too high. When the temperature in the upper protective box and the lower protective box is too low, the phase change material package releases heat, so that the temperature in the upper protective box and the lower protective box will not be too low, thereby keeping the temperature in the upper protective box and the lower protective box in a uniform and stable constant temperature state for a long time, thereby preventing the low temperature environment from reducing the performance of the lithium battery.

[0009] Optionally, the quick locking assembly includes a first mounting lock block, a second mounting lock block, a locking rod, a sleeve and a locking bead. The first mounting lock block is fixedly arranged on the outer wall of the upper protective box end, and the second mounting lock block is fixedly arranged on the outer wall of the lower protective box end. The side wall of the first mounting lock block is provided with a locking hole, and the second mounting lock block is provided with a locking groove. The locking rod slides into the locking hole, and the sleeve is fixedly connected to the side wall of the first mounting lock block. The sleeve can be inserted into the locking groove, and the locking bead is arranged in the sleeve, and the locking bead protrudes from the peripheral wall of the sleeve.

[0010] By adopting the above technical solution, the quick locking assembly can combine and fix the upper protective box and the lower protective box to achieve the effect of protecting the lithium battery. The sleeve is inserted into the lock groove. When the side wall of the first mounting lock block fits with the side wall of the second mounting lock block, the locking rod is slid to squeeze the lock bead through the annular groove wall, so that the surface of the lock bead protrudes from the outer wall of the sleeve, and the sleeve is clamped in the lock groove. The quick locking assembly facilitates the combination and disassembly of the upper protective box and the lower protective box, and is convenient for inspection and maintenance of the broken constant temperature device.

[0011] Optionally, an annular groove is provided on the peripheral wall of the locking rod, the wall of the annular groove is processed into a flared shape, a locking hole is provided on the peripheral wall of the sleeve, the locking ball is located between the annular groove and the locking hole, and the bottom width of the locking groove is the same as the width of the slot.

[0012] By adopting the above technical solution, the flared annular groove makes it easier to squeeze the lock bead and facilitates the movement of the lock bead, avoiding the lock bead from being stuck between the side wall of the lock rod and the locking hole, and interfering with the disassembly of the upper protective box and the lower protective box.

[0013] Optionally, the lithium battery constant temperature device also includes a first fixing plate, which is U-shaped and is arranged between the upper protective box and the first containing box. A first mounting groove is opened on the opposite inner wall of the first fixing plate, and a first mounting member is fixedly connected to the outer wall of the end of the first containing box. The first mounting member is adapted to the first mounting groove and inserted in the first mounting groove.

[0014] By adopting the above technical solution, by setting the first mounting plate and the first mounting member, it is convenient to install and remove the first storage box in the upper protective box, and to facilitate the inspection and replacement of the phase change material package. The first mounting member and the first mounting plate fix the first storage box in the upper protective box, thereby fixing the phase change material package.

[0015] Optionally, the lithium battery constant temperature device also includes a second fixing plate, which is U-shaped and is arranged between the lower protective box and the second containing box. A second mounting groove is opened on the opposite inner wall of the second fixing plate, and a second mounting member is fixedly connected to the outer wall of the end of the second containing box. The second mounting member is adapted to the second mounting groove and inserted in the second mounting groove.

[0016] By adopting the above technical solution, by setting up a second mounting plate and a second mounting member, it is convenient to install and remove the second storage box in the lower protective box, and to facilitate the inspection and replacement of the phase change material package. The second mounting member and the second mounting plate fix the second storage box in the lower protective box, thereby fixing the phase change material package.

[0017] Optionally, guide columns are fixedly connected to the four corners of the box opening of the lower protective box, and guide holes are opened at corresponding positions of the box opening of the lower protective box. The guide columns are adapted to the guide holes and can be inserted into the guide holes.

[0018] By adopting the above technical solution and setting a guide column, which is inserted into the guide hole, the upper protective box and the lower protective box can be quickly assembled and installed together to protect the lithium battery and improve the efficiency of the assembly installation.

[0019] Optionally, the lithium battery constant temperature device further includes a sealing gasket, which is arranged between the upper protective box and the lower protective box. The sealing gasket is in the shape of a square frame, and circular holes for guide columns to penetrate are opened at the four corners of the sealing gasket.

[0020] By adopting the above technical solution, the upper protective box and the lower protective box clamp and fix the sealing gasket when assembling the constant temperature device by setting the sealing gasket. The sealing gasket can prevent cold air from entering the protective box in a cold environment, thereby avoiding the temperature inside the protective box from dropping.

[0021] Optionally, a wire hole is provided on one side of the second mounting lock block at the end of the lower protection box, and the wire hole is connected to the outer wall of the lower protection box and the inner wall of the second containing box.

[0022] By adopting the above technical solution, the wire holes are opened to facilitate the connection between the lithium battery and the electronic equipment. At the same time, the wire holes can reduce the entry of cold air into the upper protective box and the lower protective box in a cold environment.

[0023] In summary, this application has the following technical effects:

[0024] 1. By providing an upper protective box, a lower protective box, a first containing box, a second containing box, a phase change material pack, and a quick locking assembly, the heat emitted by the lithium battery in the phase change material pack can be absorbed by the phase change material pack, so that the temperature inside the upper and lower protective boxes will not be too high. When the temperature inside the upper and lower protective boxes is too low, the phase change material pack will release heat to keep the temperature inside the upper and lower protective boxes from being too low. In this way, the temperature inside the upper and lower protective boxes remains uniform and stable for a long time, preventing the low temperature environment from degrading the performance of the lithium battery.

[0025] 2. By providing the first mounting lock block, the second mounting lock block, the locking rod, the sleeve and the locking bead, the quick locking assembly can combine and fix the upper and lower protective boxes to achieve the effect of protecting the lithium battery, facilitate the assembly and disassembly of the upper and lower protective boxes, and facilitate the inspection and maintenance of the thermostat;

[0026] 3. By setting up a sealing gasket, the sealing gasket can prevent cold air from entering the protective box in a cold environment, thereby preventing the temperature inside the protective box from dropping. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the appearance structure diagram of this application;

[0028] Figure 2 This is a diagram of the protective box and the prominent structure inside the box on this application;

[0029] Figure 3 It is a diagram of the prominent structure of the protective box and the box under this application;

[0030] Figure 4 It is a prominent structural diagram of the quick locking assembly of this application.

[0031] Explanation of the accompanying drawings: 1. Protection component; 11. Upper protection box; 111. Guide hole; 12. Lower protection box; 121. Guide column; 122. Wire hole; 13. First fixing plate; 131. First mounting groove; 14. Second fixing plate; 141. Second mounting groove; 15. First accommodating box; 151. First mounting part; 16. Second accommodating box; 161. Second mounting part; 17. Sealing gasket; 2. Phase change material package; 3. Quick locking assembly; 31. First mounting lock block; 311. Locking hole; 32. Second mounting lock block; 321. Locking groove; 33. Sleeve; 331. Locking hole; 34. Locking rod; 341. Ring groove; 35. Spring; 36. Lock bead. DETAILED DESCRIPTION

[0032] The present application is further described in detail below with reference to the accompanying drawings.

[0033] The present application discloses a portable lithium battery constant temperature device for use in cold winter climates. Figures 1 to 3 The battery constant temperature device includes a protective assembly 1, a phase change material pack 2, and a quick locking assembly 3. The protective assembly 1 protects the lithium battery from physical damage, while the phase change material pack 2 maintains a uniform and constant temperature within the protective assembly 1 for a long period of time, thereby protecting the lithium battery within the protective assembly 1 from external environmental influences and enabling its use in cold winter temperatures. The quick locking assembly 3 secures the protective assembly 1 in place.

[0034] Combine Figure 2 and Figure 3 The protective assembly 1 includes a rectangular upper protective box 11 and a lower protective box 12. The lower protective box 12 is placed horizontally and is provided with a box opening that faces upward. The upper protective box 11 is provided with a box opening that faces downward. The box opening of the lower protective box 12 is adapted to the box opening of the upper protective box 11. The lower protective box 12 and the upper protective box 11 are combined to form the outer shell of the thermostat. Guide columns 121 are fixed to the four corners of the box opening of the lower protective box 12. Guide holes 111 are opened at the corresponding positions of the box opening of the upper protective box 11. The guide columns 121 can be inserted into the guide holes 111. The guide columns 121 and the guide holes 111 facilitate the assembly of the outer shell.

[0035] Combine Figure 2 and Figure 3 The protection assembly 1 further includes a first fixing plate 13 and a second fixing plate 14. The first fixing plate 13 is disposed within the upper protection box 11 and is U-shaped. The three side walls of the first fixing plate 13 are fixedly connected to the inner wall of the upper protection box 11. The length of the first fixing plate 13 is parallel to the length of the upper protection box 11, and the two end surfaces of the first fixing plate 13 are flush with the surface of the box opening of the upper protection box 11. The second fixing plate 14 is disposed within the lower protection box 12 and is U-shaped. The three side walls of the second fixing plate 14 are fixedly connected to the inner wall of the lower protection box 12. The length of the second fixing plate 14 is parallel to the length of the lower protection box 12, and the two end surfaces of the second fixing plate 14 are flush with the surface of the box opening of the lower protection box 12.

[0036] Reference Figure 2 The protective assembly 1 also includes a first storage box 15, which is inserted into the upper protective box 11. The first storage box 15 is provided with a box opening, and the box opening is oriented in the same direction as the box opening of the upper protective box 11. The two first fixing plates 13 fixed to the inner walls of the upper protective box 11 at both ends are each provided with a T-shaped first mounting groove 131. The first mounting grooves 131 of the two first fixing plates 13 are facing each other, and the first mounting grooves 131 are spaced apart from the inner wall of the upper protective box 11. The first mounting grooves 131 are provided with an opening on the end surface of the first fixing plate 13, and the bottom width of the first mounting groove 131 is greater than the width of the slot. First mounting members 151 are fixed to the outer walls of both ends of the first storage box 15. The first mounting members 151 are adapted to and can be inserted into the first mounting grooves 131. The surface of the box opening of the first storage box 15 is flush with the surface of the box opening of the upper protective box 11, and the outer wall of the first storage box 15 is in contact with the inner wall of the first fixing plate 13.

[0037] Reference Figure 3The protective assembly 1 also includes a second storage box 16, which is inserted into the lower protective box 12. The second storage box 16 is provided with a box opening, and the box opening is oriented in the same direction as the box opening of the upper protective box 11. The two second fixing plates 14 fixed to the inner walls of the lower protective box 12 at both ends are each provided with a T-shaped second mounting slot 141. The second mounting slots 141 of the two second fixing plates 14 are opened in opposite directions. The second mounting slots 141 are spaced from the inner wall of the upper protective box 11. The second mounting slots 141 are provided with an opening on the end surface of the second fixing plate 14. The bottom width of the second mounting slot 141 is greater than the width of the slot opening. Second mounting members 161 are fixed to the outer walls of the second storage box 16 at both ends. The second mounting members 161 are adapted to and can be inserted into the second mounting slots 141. The surface of the box opening of the second storage box 16 is flush with the surface of the box opening of the lower protective box 12, and the outer wall of the second storage box 16 is in contact with the inner wall of the second fixing plate 14.

[0038] Combine Figure 2 and Figure 3 The protection assembly 1 also includes a sealing gasket 17, which is arranged between the upper protection box 11 and the lower protection box 12. The sealing gasket 17 is square-shaped, and the four corners of the sealing gasket 17 are provided with mounting holes adapted to the guide column 121. The sealing gasket 17 is sleeved on the guide column 121 through the mounting holes. When assembling the constant temperature device, the upper protection box 11 and the lower protection box 12 clamp and fix the sealing gasket 17. The sealing gasket 17 can prevent cold air from entering the protection box in a cold environment, thereby preventing the temperature in the protection box from dropping.

[0039] Combine Figure 2 and Figure 3 The phase change material package 2 is placed between the first holding box 15 and the upper protective box 11 and between the second holding box 16 and the lower protective box 12. The phase change material is preferably made of paraffin-expanded graphite composite phase change material. The heat emitted by the lithium battery can be absorbed by the phase change material package 2, so that the temperature in the upper protective box 11 and the lower protective box 12 will not be too high. When the temperature in the upper protective box 11 and the lower protective box 12 is too low, the phase change material package 2 releases heat, so that the temperature in the upper protective box 11 and the lower protective box 12 will not be too low, thereby keeping the temperature in the upper protective box 11 and the lower protective box 12 in a uniform and stable constant temperature state for a long time, ensuring that the lithium battery can be used normally and will not be disturbed by the external cold environment.

[0040] Combine Figure 3 and Figure 4There are two groups of quick locking assemblies 3, and the two groups of quick locking assemblies 3 are respectively arranged on the outer walls of the upper protective box 11 and the lower protective box 12. One group of quick locking assemblies 3 includes a first mounting lock block 31 and a second mounting lock block 32. The first mounting lock block 31 is arranged on the outer wall of the end of the upper protective box 11. The first mounting lock block 31 is in the shape of a square. The length direction of the first mounting lock block 31 is perpendicular to the length direction of the upper protective box 11. One side wall of the first mounting lock block 31 is flush with the surface of the box opening of the upper protective box 11. The second mounting lock block 32 is arranged on the outer wall of the end of the lower protective box 12. The second mounting lock block 32 is in the shape of a square. The length direction of the second mounting lock block 32 is perpendicular to the length direction of the lower protective box 12. One side wall of the second mounting lock block 32 is flush with the surface of the box opening of the lower protective box 12.

[0041] Reference Figure 4 The quick-lock assembly 3 also includes a sleeve 33, a locking rod 34, a spring 35, and a locking bead 36. A locking hole 311 is defined in the sidewall of the first mounting lock block 31, connecting the two sidewalls of the first mounting lock block 31. The sleeve 33 is affixed to the sidewall of the first mounting lock block 31 near the opening of the upper protective box 11. The inner diameter of the sleeve 33 is smaller than the diameter of the locking hole 311, and the axis of the sleeve 33 coincides with the axis of the locking hole 311. A locking slot 321 is defined in the sidewall of the second mounting lock block 32 near the opening of the lower protective box 12. The bottom diameter of the locking slot 321 is larger than the diameter of the slot opening. The outer wall of the sleeve 33 fits in the slot of the locking slot 321 and can be inserted into the slot 321. The locking rod 34 slides between the locking hole 311 and the sleeve 33. An annular thickened portion is machined into the peripheral wall of the locking rod 34 away from the sleeve 33. The axis of the annular thickened portion coincides with the axis of the locking rod 34, and the peripheral wall of the annular thickened portion conforms to the wall of the locking hole 311. A spring 35 is disposed in the locking hole 311 and sleeved around the peripheral wall of the locking rod 34. One end of the spring 35 is fixedly connected to the end surface of the sleeve 33, and the other end is fixedly connected to the side wall of the annular thickened portion.

[0042] Reference Figure 4 , locking holes 331 are opened on opposite sides of the peripheral wall of the sleeve 33, and the locking holes 331 communicate with the inside and outside of the sleeve 33. The locking holes 331 are conical. The diameter of the locking hole 331 on the outer wall of the sleeve 33 is smaller than the diameter of the hole on the inner wall. An annular groove 341 is opened on a section of the peripheral wall of the locking rod 34 located inside the sleeve 33, and the groove walls on both sides of the annular groove 341 are flared. The locking ball 36 is movably arranged in the locking hole 331 and the annular groove 341, and the locking ball 36 can protrude from the outer wall of the sleeve 33.

[0043] Reference Figure 4When assembling the thermostat housing, press the locking rod 34 to contract the spring 35 so that the locking ball 36 is completely located in the sleeve 33, and the sleeve 33 is inserted into the locking groove 321. When the side walls of the first mounting lock block 31 and the second mounting lock block 32 are in contact with each other, release the locking rod 34, and the spring 35 extends to reset the locking rod 34. The wall of the flared annular groove 341 squeezes the locking ball 36, so that the surface of the locking ball 36 protrudes from the outer wall of the sleeve 33 and is locked in the locking groove 321.

[0044] Combine Figure 2 and Figure 3 A handle is fixedly attached to the upper end of the first mounting lock block 31, facing away from the upper protective box 11. This handle facilitates portability of the thermostat. The protective assembly 1 also includes a wire hole 122, located on the outer wall of one end of the lower protective box 12, on one side of the second mounting lock block 32. This hole 122 connects the outer wall of the lower protective box 12 to the inner wall of the second storage box 16.

[0045] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A portable lithium battery constant temperature device for use in cold winter climates, characterized by: The lithium battery constant temperature device comprises an upper protective box (11), a lower protective box (12), a first accommodating box (15), a second accommodating box (16), a phase change material pack (2) and a quick locking assembly (3). The upper protective box (11) and the lower protective box (12) are both provided with box openings and the box openings are arranged relative to each other. The first accommodating box (15) is fixedly arranged in the upper protective box (11), the second accommodating box (16) is fixedly arranged in the lower protective box (12), the phase change material pack (2) is arranged between the upper protective box (11) and the first accommodating box (15) and between the lower protective box (12) and the second accommodating box (16), and the quick locking assembly (3) is arranged at the ends of the upper protective box (11) and the lower protective box (12).

2. The portable lithium battery constant temperature device for use in cold winter climates according to claim 1, characterized in that: The quick locking assembly (3) includes a first mounting lock block (31), a second mounting lock block (32), a locking rod (34), a sleeve (33) and a locking ball (36), wherein the first mounting lock block (31) is fixedly arranged on the outer wall of the end of the upper protective box (11), and the second mounting lock block (32) is fixedly arranged on the outer wall of the end of the lower protective box (12), a locking hole (311) is provided on the side wall of the first mounting lock block (31), and a locking groove (321) is provided on the second mounting lock block (32), the locking rod (34) slides into the locking hole (311), the sleeve (33) is fixedly connected to the side wall of the first mounting lock block (31), the sleeve (33) can be inserted into the locking groove (321), the locking ball (36) is arranged in the sleeve (33), and the locking ball (36) protrudes from the peripheral wall of the sleeve (33).

3. The portable lithium battery constant temperature device for use in cold winter climates according to claim 2, characterized in that: A ring groove (341) is provided on the peripheral wall of the locking rod (34), and the groove wall of the ring groove (341) is processed into a flared shape. A locking hole (331) is provided on the peripheral wall of the sleeve (33), and the locking ball (36) is located between the ring groove (341) and the locking hole (331). The bottom width of the locking groove (321) is equal to the width of the groove opening.

4. The portable lithium battery constant temperature device for use in cold winter climates according to claim 1, characterized in that: The lithium battery constant temperature device also includes a first fixing plate (13), the first fixing plate (13) is U-shaped, and the first fixing plate (13) is arranged between the upper protective box (11) and the first containing box (15). A first mounting groove (131) is opened on the inner wall opposite to the first fixing plate (13), and a first mounting member (151) is fixedly connected to the outer wall of the end of the first containing box (15). The first mounting member (151) is adapted to the first mounting groove (131) and inserted into the first mounting groove (131).

5. The portable lithium battery constant temperature device for use in cold winter climates according to claim 1, characterized in that: The lithium battery constant temperature device also includes a second fixing plate (14), the second fixing plate (14) is U-shaped, and the second fixing plate (14) is arranged between the lower protective box (12) and the second containing box (16). A second mounting groove (141) is opened on the inner wall opposite to the second fixing plate (14), and a second mounting member (161) is fixedly connected to the outer wall of the end of the second containing box (16). The second mounting member (161) is adapted to the second mounting groove (141) and inserted into the second mounting groove (141).

6. The portable lithium battery constant temperature device for use in cold winter climates according to claim 1, characterized in that: Guide columns (121) are fixedly connected at the four corners of the box opening of the lower protection box (12), and guide holes (111) are opened at corresponding positions of the box opening of the lower protection box (12). The guide columns (121) are adapted to the guide holes (111) and can be inserted into the guide holes (111).

7. The portable lithium battery constant temperature device for use in cold winter climates according to claim 1, characterized in that: The lithium battery constant temperature device also includes a sealing gasket (17), which is arranged between the upper protection box (11) and the lower protection box (12). The sealing gasket (17) is in the shape of a square frame, and circular holes for guide columns (121) to penetrate are opened at the four corners of the sealing gasket (17).

8. The portable lithium battery constant temperature device for use in cold winter climates according to claim 5, characterized in that: A wire hole (122) is provided on one side of the second mounting lock block (32) at the end of the lower protection box (12), and the wire hole (122) is connected to the outer wall of the lower protection box (12) and the inner wall of the second receiving box (16).

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