CN222720542U - Lithium battery protection shell - Google Patents

Abstract

The utility model discloses a lithium battery protection shell, including a shell, the left and right ends of the bottom of the shell are symmetrically fixedly connected with supporting feet, the inner lower end of the shell is slidably connected with a support plate, the left and right ends of the top of the support plate are symmetrically fixedly connected with a limit plate, a lithium battery is arranged between the two limit plates, the four corners of the bottom of the support plate are symmetrically fixedly connected with a first damping spring, the top of the shell is fixedly connected with a top cover by bolts, the two ends of the top of the top cover are symmetrically provided with wire holes, the middle part of the lower surface of the top cover is fixedly connected with a concave plate, and the inner lower end of the concave plate is slidably connected with a clamping plate. The lithium battery protection shell can realize the fixed limit of the lithium battery through the mutual cooperation of the support plate, the first damping spring, the limit plate, the clamping plate, the concave plate, and the second damping spring, and can also perform buffering and shock reduction, thereby reducing the impact of bumps on the lithium battery.

Description

Lithium battery protection shell

Technical Field

The utility model relates to the field of lithium battery shells, in particular to a lithium battery protection shell.

Background

The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution, and is different from a rechargeable battery lithium ion battery and a lithium ion polymer battery, and the lithium battery is used as an energy battery with high reaction efficiency, strong safety and small volume and is increasingly widely applied.

At present, new energy batteries can be installed in an electric vehicle or a new energy automobile, the new energy batteries are generally installed in a protective shell, but most of the existing protective shells are sealed, so that the heat dissipation performance is poor, the heat dissipation of the new energy batteries is affected, the service life of the new energy batteries is further reduced, some new energy battery shells can dissipate heat, but the heat dissipation grooves are formed in the heat dissipation, dust is easy to enter, and in addition, the existing new energy batteries only rely on the self shock absorption function of the electric vehicle to absorb shock, and the protective shell generally does not have the shock absorption function, so that the shock absorption performance is poor, and the shock absorption can cause influence.

The utility model discloses a lithium battery mounting box in China patent application number 201911030707.6, which comprises a shell and a cover body and is characterized in that a containing space for placing a lithium battery is arranged in the shell, the cover body is covered on the shell, two sides of the containing space are provided with partition boards, the containing space is partitioned into an intermediate space and two side spaces by the partition boards, the middle space is placed in the lithium battery, a heat-conducting plate is arranged in the side spaces, ventilation openings are formed in two sides of the shell, which are positioned in the side spaces, of a lithium battery box with a novel structure, the lithium battery box can be effectively cooled through the arrangement of the side spaces and the ventilation openings, heat is timely discharged, meanwhile, the lithium battery is more stably matched, rigid collision cannot occur, and the service life of the lithium battery is prolonged. The device can dispel the heat, but be provided with the vent, dust can not get into, and the accumulation is too much can influence the use, and in addition, this protective housing does not possess shock-absorbing function, so shock-absorbing performance is relatively poor, jolts can cause the influence.

Therefore, it is necessary to provide a lithium battery protection case to solve the above problems.

Disclosure of utility model

The utility model mainly aims to provide a lithium battery protection shell which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The utility model provides a lithium battery protection casing, includes the casing, the left and right sides end symmetry fixedly connected with stabilizer blade of casing bottom, the inboard lower extreme sliding connection of casing has the backup pad, the left and right sides end symmetry fixedly connected with limiting plate at backup pad top, two be provided with the lithium battery between the limiting plate, the bottom four corners symmetry fixedly connected with first damping spring of backup pad, the top of casing passes through the bolt fixedly connected with top cap, wire guide has been seted up to the both ends symmetry at top cap top, the lower surface middle part fixedly connected with concave plate of top cap, the inboard lower extreme sliding connection of concave plate has the pressure strip, the top four corners symmetry fixedly connected with second damping spring of pressure strip;

The heat-conducting plate is symmetrically embedded on the left side and the right side of the shell, two heat-conducting plates are symmetrically and fixedly connected with heat-radiating fins on the opposite sides, a heat-radiating through groove is formed in the middle of the supporting plate, a frame body is embedded on the bottom of the shell, a dust screen is arranged on the inner side of the frame body, end plates are symmetrically and fixedly connected on the left end and the right end of the dust screen, vibration springs are symmetrically and fixedly connected on the front end and the rear end of the top and the bottom of the end plates, and fixing plates are symmetrically and fixedly connected on the upper end and the lower end of the left side and the right side of an inner cavity of the frame body.

Preferably, the bottom of the first damping spring is fixedly connected with the bottom of the inner cavity of the shell, and the top of the second damping spring is fixedly connected with the top of the inner side of the concave plate.

Preferably, the bottom of the pressing plate is in interference fit with the top of the lithium battery.

Preferably, the lower end of the lithium battery is in sliding fit with the opposite sides of the two limiting plates, and the upper ends of the opposite sides of the two limiting plates are cambered surfaces.

Preferably, the heat dissipation through groove corresponds to the frame body.

Preferably, the front side and the rear side of the dustproof net are in sliding fit with the front side and the rear side of the inner cavity of the frame body, one far away side of the two end plates is in sliding fit with the left side and the right side of the inner cavity of the frame body, and one end of the vibration spring far away from the end plates is fixedly connected with the side wall of the fixing plate.

Advantageous effects

Compared with the prior art, the utility model provides a lithium battery protection shell, which has the following beneficial effects:

1. This lithium cell protection casing through backup pad, first damping spring, limiting plate, pinch plate, concave plate, the second damping spring that set up mutually support can realize the fixed spacing to the lithium cell, can cushion the shock attenuation simultaneously, has reduced the influence that jolts and cause the lithium cell.

2. This lithium battery protection casing, heat-conducting plate, heat radiation fin, heat dissipation logical groove, the mutually supporting of framework can realize the heat dissipation to the lithium battery, have reduced the influence of high temperature to the lithium battery, and dust prevention net's setting can prevent that the dust from getting into, and end plate, vibration spring, fixed plate's setting can drive dust prevention net when jolting and vibrate, and then can tremble partial dust, reduce the possibility of jam.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2;

FIG. 4 is a schematic view of the structure of the support plate of the present utility model;

Fig. 5 is a schematic cross-sectional view of the frame of the present utility model.

1, A shell, 2, a top cover, 3, support legs, 4, a wire guide, 5, a bolt, 6, a heat radiation fin, 7, a frame, 8, a lithium battery, 9, a limiting plate, 10, a supporting plate, 11, a first damping spring, 12, a pressing plate, 13, a concave plate, 14, a heat conduction plate, 15, a second damping spring, 16, a heat radiation through groove, 17, a dust screen, 18, an end plate, 19, a vibration spring, 20 and a fixing plate.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-5, a lithium battery protection shell comprises a shell 1, support legs 3 are symmetrically and fixedly connected at the left and right ends of the bottom of the shell 1, a support plate 10 is slidably connected at the lower end of the inner side of the shell 1, limit plates 9 are symmetrically and fixedly connected at the left and right ends of the top of the support plate 10, the upper ends of opposite sides of the two limit plates 9 are cambered surfaces, a lithium battery 8 is arranged between the two limit plates 9, the lower end of the lithium battery 8 is slidably matched with the opposite sides of the two limit plates 9, first damping springs 11 are symmetrically and fixedly connected at four corners of the bottom of the support plate 10, the bottom of the first damping springs 11 is fixedly connected with the bottom of an inner cavity of the shell 1, a top cover 2 is fixedly connected at the top of the shell 1 through bolts 5, the wire guide 4 is symmetrically arranged at two ends of the top cover 2, the middle part of the lower surface of the top cover 2 is fixedly connected with the concave plate 13, the lower end of the inner side of the concave plate 13 is slidably connected with the pressing plate 12, the bottom of the pressing plate 12 is in abutting fit with the top of the lithium battery 8, the four corners of the top of the pressing plate 12 are symmetrically and fixedly connected with the second damping springs 15, the top of the second damping springs 15 is fixedly connected with the top of the inner side of the concave plate 13, and the fixed limit of the lithium battery 8 can be realized through the mutual fit of the supporting plate 10, the first damping springs 11, the limiting plate 9, the pressing plate 12, the concave plate 13 and the second damping springs 15, meanwhile, buffering and damping can be carried out, and the influence of jolt on the lithium battery 8 is reduced;

The heat-conducting plates 14 are symmetrically embedded in the left side and the right side of the shell 1, the heat-radiating fins 6 are symmetrically and fixedly connected to the opposite sides of the two heat-conducting plates 14, the heat-radiating through grooves 16 are formed in the middle of the supporting plate 10, the frame 7 is embedded in the bottom of the shell 1, the heat-radiating through grooves 16 correspond to the frame 7, and the heat-conducting plates 14, the heat-radiating fins 6, the heat-radiating through grooves 16 and the frame 7 are mutually matched to realize heat radiation of the lithium battery 8, so that the influence of high temperature on the lithium battery 8 is reduced;

The inside of framework 7 is provided with dust screen 17, dust screen 17's setting can prevent that the dust from getting into, dust screen 17's front and back both sides and framework 7 inner chamber front and back both sides sliding fit, dust screen 17's left and right sides symmetrical fixedly connected with end plate 18, two end plates 18 keep away from one side and framework 7 inner chamber's left and right sides sliding fit, end plate 18 top and bottom front and back both ends symmetrical fixedly connected with vibration spring 19, framework 7 inner chamber left and right sides's upper and lower both ends symmetrical fixedly connected with fixed plate 20, vibration spring 19 keeps away from end plate 18's one end and fixed plate 20's lateral wall fixed connection, end plate 18, vibration spring 19, fixed plate 20's setting can drive dust screen 17 vibration when jolting, and then can tremble some dust, reduce the possibility of jam.

It should be noted that, the present utility model is a lithium battery protection casing, when in use, the lithium battery 8 is placed between two limiting plates 9 at the top of the supporting plate 10, the cambered surfaces at the upper ends of two opposite sides of the limiting plates 9 are convenient for fixing the lithium battery 8, then the top cover 2 is covered at the upper end of the casing 1, the bottom of the compressing plate 12 compresses tightly the lithium battery 8, then the locking bolt 5, the supporting plate 10, the first damping spring 11, the limiting plate 9, the compressing plate 12, the concave plate 13 and the second damping spring 15 are mutually matched, so as to realize fixing and limiting of the lithium battery 8, and meanwhile, buffer and shock absorption can be performed, specifically, when in shock, the second damping spring 15 and the first damping spring 11 are deformed by pressure, so as to generate reverse acting force to buffer and absorb shock, the influence of the bump on the lithium battery 8 is reduced, specifically, the heat generated by the side surfaces of the lithium battery 8 is transferred to the heat conducting plate 14, the heat conducting plate 14 is finally the heat conducting plate 6 is dissipated, finally, the heat generated by the bottom of the lithium battery 8 is removed, and the heat conducting plate 16 is removed, and the shock-absorbing plate 17 can be arranged, and the dust and dust can be prevented from entering the end plate 17, and the dust can be prevented from being blocked by the shock-absorbing plate 17.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. A lithium battery protection shell, comprising a shell (1), characterized in that: the left and right ends of the bottom of the shell (1) are symmetrically fixedly connected with supporting feet (3), the inner lower end of the shell (1) is slidably connected with a support plate (10), the left and right ends of the top of the support plate (10) are symmetrically fixedly connected with a limiting plate (9), a lithium battery (8) is arranged between the two limiting plates (9), the four corners of the bottom of the support plate (10) are symmetrically fixedly connected with a first damping spring (11), the top of the shell (1) is fixedly connected with a top cover (2) by bolts (5), the two ends of the top of the top cover (2) are symmetrically provided with wire holes (4), the middle part of the lower surface of the top cover (2) is fixedly connected with a concave plate (13), the inner lower end of the concave plate (13) is slidably connected with a pressing plate (12), and the four corners of the top of the pressing plate (12) are symmetrically fixedly connected with a second damping spring (15); The shell (1) is symmetrically embedded with heat conducting plates (14) on both sides, and heat dissipation fins (6) are symmetrically fixedly connected to the opposite sides of the two heat conducting plates (14). A heat dissipation groove (16) is provided in the middle of the support plate (10). A frame (7) is embedded in the bottom of the shell (1). A dustproof net (17) is arranged on the inner side of the frame (7). The left and right ends of the dustproof net (17) are symmetrically fixedly connected to end plates (18). The front and rear ends of the top and bottom of the end plates (18) are symmetrically fixedly connected to vibration springs (19). The upper and lower ends of the left and right sides of the inner cavity of the frame (7) are symmetrically fixedly connected to fixing plates (20). 2. A lithium battery protective shell according to claim 1, characterized in that: the bottom of the first damping spring (11) is fixedly connected to the bottom of the inner cavity of the shell (1), and the top of the second damping spring (15) is fixedly connected to the top of the inner side of the concave plate (13). 3. A lithium battery protective shell according to claim 1, characterized in that the bottom of the pressing plate (12) is in contact with the top of the lithium battery (8). 4. A lithium battery protective shell according to claim 1, characterized in that: the lower end of the lithium battery (8) is slidably matched with the opposite side of the two limit plates (9), and the upper ends of the opposite side of the two limit plates (9) are arc surfaces. 5. A lithium battery protective housing according to claim 1, characterized in that the heat dissipation groove (16) corresponds to the frame (7). 6. A lithium battery protective shell according to claim 1, characterized in that: the front and rear sides of the dustproof net (17) are slidably matched with the front and rear sides of the inner cavity of the frame (7), the sides away from each other of the two end plates (18) are slidably matched with the left and right sides of the inner cavity of the frame (7), and the end of the vibration spring (19) away from the end plate (18) is fixedly connected to the side wall of the fixed plate (20).