Battery box safe to use

Abstract

The utility model relates to the technical field of battery boxes, and discloses a battery box safe to use, which comprises a box body, the box body is used for arranging a battery pack, an upper cover is arranged on the box body, one end of the upper cover is provided with at least one connecting hole, at least two limiting pieces are arranged in the connecting hole, a male connecting piece is arranged in the connecting hole, and the male connecting piece is connected with the upper cover. The upper cover is provided with a male connecting piece, one end of the male connecting piece is provided with a limiting part, the limiting part is used for being matched with the limiting piece to prevent the male connecting piece from falling off from the upper cover, the box body is provided with a female connecting piece at the position corresponding to the male connecting piece, and the female connecting piece is fixedly connected with the male connecting piece. And the use safety of the battery box is greatly enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery box, especially a safe battery box. BACKGROUND

[0002] The connection mode of the traditional battery box is mainly realized through the cooperation of screws and screw holes. Although this mode can provide stable sealing effect during installation, the screws are easy to fall off inadvertently during disassembly and maintenance, increasing the risk of loss. Once the screws are lost, the fixation and sealing of the battery box will be affected, which may cause the battery to loosen or the battery box to be unable to tightly close. More seriously, if the battery box is applied to children's toys or environments with children at home, the fallen screws may constitute a safety hazard, and children are easy to mis-swallow during play, bringing unpredictable health risks.

[0003] The prior art discloses a Chinese patent with the authorization announcement number CN206878045U. Although this document mentions a screw anti-loosening structure, it still has some problems. The structure includes a box body, a box cover, a battery groove in the box body, a limiting block group on the side of the battery groove, a limiting hole at one end of the box cover, a fixing piece in the limiting hole, a fixing hole on one side of the battery groove matched with the fixing piece, and the fixing piece including a threaded part, a light rod part, and a head part. The diameters of the threaded part and the head part are larger than the diameter of the limiting hole. This structure ensures that the diameter of the fixing piece (especially the threaded part and the head part) is larger than the diameter of the limiting hole, thereby realizing effective anti-loosening function. However, during long-term use, the fixing piece may gradually wear or degrade in performance under the action of long-term mechanical stress and environmental factors (such as corrosion and oxidation). Especially the threaded part and the head part of the fixing piece, as the part directly contacting the limiting hole and bearing the main anti-loosening force, may have more significant wear. As the wear intensifies, the limiting hole may gradually expand due to continuous friction, causing the originally tight fitting relationship to become loose. Once the diameter of the limiting hole increases to a sufficient extent for the fixing piece to easily pass through, the anti-loosening effect will be greatly reduced or even completely lost. More seriously, if such wear occurs when the battery box is in a non-fixed or easily disturbed state (for example, during transportation, storage, or in an environment easily accessible to children), the risk of battery and fixing piece (screw) falling off will significantly increase, which not only may cause damage or malfunction of the equipment, but also may pose a safety hazard to the surrounding environment or personnel (especially children). SUMMARY

[0004] The utility model discloses a safe battery box, the guiding surface of the limiting sheet makes the male connecting piece can be inserted into the connecting hole more easily and more accurately in the assembling process, not only improves the assembling efficiency and accuracy, but also ensures the correct docking between the male connecting piece and the upper cover, the male connecting piece is inserted into the connecting hole, and the limiting sheet of the connecting hole cooperates with each other to bind the connecting body of the male connecting piece, the male connecting piece is firmly fixed in the connecting hole because the diameter of the limiting portion is greater than the perforation formed by each limiting sheet, the risk of falling off at random is avoided, the diameter of the limiting hole is increased because the design of the perforation makes the male connecting piece not wear and tear by directly sending friction with the connecting hole in the use process, thereby avoiding the occurrence of the anti -drop failure, the stability of the connection between the male connecting piece and the upper cover is improved, the situation that children take down the male connecting piece at random and eat by mistake is effectively avoided, and the safety of the use of the battery box is greatly enhanced.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A safe battery box, including the box body, the box body is used to set the battery pack, the box body is equipped with an upper cover, the upper cover one end is equipped with at least a connecting hole, the connecting hole is equipped with at least two limiting sheets, the connecting hole is equipped with a male connecting piece, one end of the male connecting piece is equipped with a limiting portion, the limiting portion is used to cooperate with the limiting sheet to prevent the male connecting piece from falling off from the upper cover, the box body is equipped with a female connecting piece at the setting of the male connecting piece, and the female connecting piece is fixedly connected with the male connecting piece.

[0007] One end of the limiting sheet of the upper cover is provided with a guiding surface, which is used for guiding the assembly of the male connecting piece, and the limiting sheets cooperate with each other to prevent the male connecting piece from falling off.

[0008] The male connecting piece is composed of a connecting body and an acting portion arranged at the other end of the connecting body, a type slot is arranged on the acting portion, the type slot is used for assembling and disassembling the male connecting piece, and the limiting portion is arranged at one end of the connecting body.

[0009] The limiting portion of the male connecting piece is arranged at the end of one end of the connecting body, and external threads are arranged on the limiting portion, a mounting hole is arranged in the middle of the female connecting piece, internal threads are arranged in the mounting hole, and the mounting hole is threadedly connected with the external threads of the limiting portion through the internal threads.

[0010] One end of the limiting portion of the male connecting piece is provided with a connecting section, and external threads are arranged on the connecting section, a mounting hole is arranged in the middle of the female connecting piece, internal threads are arranged in the mounting hole, and the mounting hole is threadedly connected with the external threads of the limiting portion through the internal threads, wherein the size of the limiting portion gradually increases from the connecting section to the connecting body.

[0011] The box body comprises at least one first slot and a second slot arranged at one end of the box body, a battery slot arranged at the other end of the box body, a first conductive part arranged between the first slot and the battery slot, a second conductive part arranged between the second slot and the battery slot, and a third conductive part arranged at the other end of the battery slot, wherein a power switch is arranged in the first slot, and the power switch is electrically connected with the first conductive part and the second conductive part respectively, and the female connector is fixedly connected between the first slot and the second slot.

[0012] The utility model discloses a safe battery box, comprising a box body for arranging a battery pack, wherein an upper cover is arranged on the box body, and at least one connecting hole is arranged at one end of the upper cover, a male connector is arranged in the connecting hole, a limiting part is arranged at one end of the male connector, a limiting piece is sleeved on the male connector, and the limiting piece is used for cooperating with the limiting part to prevent the male connector from falling off the upper cover.

[0013] The male connector comprises a connecting body and an acting part arranged at the other end of the connecting body, a type slot is arranged on the acting part, the type slot is used for assembling and disassembling the male connector, the limiting part is arranged at one end of the connecting body, and external threads are arranged on the limiting part.

[0014] A mounting hole is arranged in the middle of the female connector, internal threads are arranged in the mounting hole, and the mounting hole is threadedly connected with the external threads of the limiting part through the internal threads.

[0015] The box body comprises at least one first slot and a second slot arranged at one end of the box body, a battery slot arranged at the other end of the box body, a first conductive part arranged between the first slot and the battery slot, a second conductive part arranged between the second slot and the battery slot, and a third conductive part arranged at the other end of the battery slot, wherein a power switch is arranged in the first slot, and the power switch is electrically connected with the first conductive part and the second conductive part respectively, and the female connector is fixedly connected between the first slot and the second slot.

[0016] The utility model discloses a safe battery box, comprising a box body for arranging a battery pack, wherein an upper cover is arranged on the box body, and at least one connecting hole is arranged at one end of the upper cover, a male connector is arranged in the connecting hole, a limiting part is arranged at one end of the male connector, a limiting piece is sleeved on the male connector, and the limiting piece is used for cooperating with the limiting part to prevent the male connector from falling off the upper cover.

[0017] 1、Its through in the upper cover of each limiting piece of the connecting hole of the guide surface design, makes the male connector when assembling can be easier, more accurate to insert the connecting hole, has improved the assembly efficiency and accuracy, then by each limiting piece cooperation, the connecting body of the male connector is bound, because the diameter of the limiting part is greater than the perforation formed by each limiting piece, so that the male connector will not randomly separate from the upper cover after the male connector is assembled into the connecting hole, effectively avoiding the male connector from the connecting hole.

[0018] 2. The limiting member is connected to the male connecting member stably and the male connecting member is limited in the connecting hole by the cooperation of the limiting member and the step of the connecting hole, so that the male connecting member is prevented from being separated from the connecting hole at will;

[0019] It can be seen that the stability of the connection between the male connecting member and the upper cover is improved, the situation that children take down the male connecting member at will and eat it by mistake is effectively avoided, and the safety of the battery box is greatly enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of the embodiment 1, 2 or 3 of the utility model.

[0021] Figure 2 is a schematic view of the box body structure of the utility model.

[0022] Figure 3 is a schematic view of the upper cover structure of the utility model.

[0023] Figure 4 is a sectional view of the embodiment 1 of the utility model.

[0024] Figure 5 is a sectional view of the embodiment 2 of the utility model.

[0025] Figure 6 is a sectional view of the embodiment 3 of the utility model.

[0026] Figure 7 is a schematic view of the limiting member of the utility model.

[0027] Figure 8 is a schematic view of the electric connection of the utility model.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1-box, 10-side plate, 11-card slot, 12-first slot body, 13-second slot body, 14-battery slot, 140-first card slot, 141-second card slot, 142-third card slot, 15-first conductive part, 16-second conductive part, 17-third conductive part, 18-isolation part, 180-bump, 19-hook, 2-upper cover, 20-connection hole, 21-limiting piece, 210-guiding surface, 22-card block, 23-step, 3-male connector, 30-limiting part, 31-connection main body, 32-acting part, 320-groove, 34-connection section, 35-external thread, 4-female connector, 40-mounting hole, 41-internal thread, 5-power switch, 6-limiting part, 60-limiting hole, 61-limiting monomer. DETAILED DESCRIPTION

[0030] The utility model will be further described below in conjunction with the drawings of the specification: DETAILED EMBODIMENTS

[0031] As Figures 1-8 shown, the utility model relates to a safe battery box of using, including box 1, the box 1 is used to set battery pack, the box 1 is equipped with an upper cover 2, the upper cover 2 one end is equipped with at least one connection hole 20, the connection hole 20 is equipped with at least two limiting pieces 21, the connection hole 20 is equipped with a male connector 3, one end of the male connector 3 is equipped with limiting part 30, the limiting part 30 is used to cooperate limiting piece 21 prevent male connector 3 from falling off from upper cover 2, the box 1 is equipped with female connector 4 in correspondence with the setting place of male connector 3, the female connector 4 is fixedly connected with male connector 3, the male connector 3 is rotatably connected with connection hole 20, further, the box 1 one end is equipped with side plate 10, the middle of side plate 10 is equipped with a card hole 11, the end face of the other end of upper cover 2 is outwardly convexly equipped with card block 22, and the card block 22 is clamped in card hole 11.

[0032] As Figures 1-4 shown, the limiting piece 21 one end of upper cover 1 is equipped with guiding surface 210, the guiding surface 210 is used to the guiding effect of male connector 3 assembly, each limiting piece 21 cooperates each other, prevents male connector 3 from falling off and is positioned, further, each limiting piece 21 one end cooperates, constitutes a perforation (not shown), and the guiding surface 210 is inclined towards the side of hole wall;Preferably, the number of limiting pieces 21 is 3, and three limiting pieces 21 are cooperated to ensure that male connector 3 can be assembled into connection hole 20 more easily, and the limiting effect of each limiting piece 21 on male connector 3 is ensured, and it should be noted that the number of limiting pieces 21 can be selected according to the actual design needs of product structure, which is not limited herein.

[0033] As Figures 1-4As shown, the male connector 3 is composed of a connecting body 31 and an action part 32 at the other end of the connecting body 31, the connecting body 31, the action part 32 and the limiting part 30 are integrally formed, the action part 32 is provided with a type slot 320, which is used to assemble and disassemble the male connector 3, the limiting part 30 is provided at one end of the connecting body 31, the diameter of the connecting body 31 is smaller than that of the limiting part 30, the limiting pieces 21 are buckled on the connecting body 31, and the limiting part 30 prevents the male connector 3 from being separated from the connecting hole 20, and cooperates with the female connector 4 to fix the upper cover 2 on the box body 1.

[0034] Further, as shown, Figures 1-4 the limiting part 30 of the male connector 3 is provided at the end of one end of the connecting body 31, the limiting part 30 is provided with external threads 35, the middle of the female connector 4 is provided with a mounting hole 40, the mounting hole 40 is provided with internal threads 41, the mounting hole 40 is threadedly connected with the external threads 35 of the limiting part 30 through the internal threads 41, and the threaded cooperation of the male connector 3 and the female connector 4 facilitates the user to disassemble and assemble the upper cover 2 and replace the battery.

[0035] As shown, Figures 1-4 the box body 1 includes at least one first slot 12 and a second slot 13 provided at one end, a battery slot 14 provided at the other end of the box body, a first conductive part 15 provided between the first slot 12 and the battery slot 14, a second conductive part 16 provided between the second slot 13 and the battery slot 14, and a third conductive part 17 provided at the other end of the battery slot 14, the first slot 12 is provided with a power switch 5, the power switch 5 is electrically connected with the first conductive part 15 and the second conductive part 16 respectively, the female connector 4 is fixedly connected between the first slot 12 and the second slot 13, and the power switch 5 is clamped and fixed in the first slot 12; specifically, the power switch 5 includes two conductive ends, one of which is electrically connected with the first conductive part 15 through a wire, and the other of which is electrically connected with the second conductive part 16 through a wire, a first clamping slot 140 is provided between the first slot 12 and the battery slot 14, the first conductive part 15 is fixedly connected with the first clamping slot 140, a second clamping slot 141 is provided between the second slot 13 and the battery slot 14, the second conductive part 16 is fixedly connected with the second clamping slot 141, a third clamping slot 142 is provided at the other end of the battery slot 14, and the third conductive part 17 is fixedly connected with the third clamping slot 142, a partition 18 is provided in the middle of the battery slot 14, which is used to separately install batteries (not shown), the partition 18 is integrally formed with the box body 1, two protrusions 180 are provided above the partition 18, which are used to support the upper cover and prevent the upper cover 2 from being pressed downward to damage the battery, and a hook 19 is provided at one end of the box body 1, which is used to facilitate hanging fixation during use.

[0036] In assembly, the limiting portion 30 of the male connector 3 is inserted into the connecting hole 20 with one end downward and a force is applied to the acting portion 32, and it is noted that the limiting portion 30 of the male connector 3 has a diameter larger than the diameter of the through hole formed by each limiting sheet 21, so that when the male connector 3 is inserted into the connecting hole 20, the limiting portion 30 exerts a downward force on each limiting sheet 21 to deform each limiting sheet 21 downward, gradually expand the through hole, and enter the connecting hole 20 under the guidance of the guide surface 210. At this time, the limiting portion 30 releases the force on each limiting sheet 21, and each limiting sheet returns to the original state under the action of the reverse stress, clamps the male connector 3, and further limits the male connector 3 in the connecting hole 20, effectively preventing the male connector 3 from being separated from the connecting hole 20 at will.

[0037] In use, after the battery is loaded into the battery groove 14, the clamping block 22 of the upper cover 2 is inserted into the clamping hole 11 of the box body 1, and the upper cover 2 is buckled on the box body 1. By using a screwdriver to act on the type groove 320 of the acting portion 32 of the male connector 3, the limiting portion 30 of the male connector 3 is screwed into the mounting hole 40 of the female connector 4, and the installation of the battery is completed. Specific embodiments

[0038] As shown in Figures 1-3 , 5, the utility model discloses a screw anti -drop battery box, and one end of the limiting portion 30 of the male connector 3 is provided with a connecting section 34, the connecting section 34 is provided with external thread 35, the middle part of the female connector 4 is provided with a mounting hole 40, the mounting hole 40 is provided with internal thread 41 in, the mounting hole 40 is screwed with the external thread 35 of the limiting portion 30 through the internal thread 41 and is connected, wherein, the face of the limiting portion 30 close to the connecting section 34 is a taper surface structure, the design of the taper surface structure cooperates with the guide surface of the limiting sheet 21, so that the male connector 3 can be more easily assembled into the connecting hole 20, the connecting section 34 is integrally formed with the limiting portion 30, the connecting body 31 and the acting portion 32, and jointly constitutes the male connector 3.

[0039] In assembly, the connecting section 34 of the male connecting piece 3 is inserted into the connecting hole 20 with one end downward, and the action part 32 is subjected to an action force. It is to be noted that since the limiting part 30 of the male connecting piece 3 has a diameter larger than the hole diameter of the perforation formed by each limiting sheet 21, when the male connecting piece 3 is inserted into the connecting hole 20, after the connecting section 34 enters the perforation, the limiting part 30 exerts a downward action force on each limiting sheet 21, so that each limiting sheet 21 is deformed downward, gradually enlarges the perforation, and under the cooperation of the taper structure of the limiting part 30 and the guide surface 210 of each limiting sheet 21, the limiting part 30 passes through the perforation. At this time, the connecting body 31 of the male connecting piece 3 enters the perforation. After the limiting part 30 enters the perforation, the limiting part 30 removes the action force on each limiting sheet 21, and each limiting sheet is restored to the original state under the action of the reverse stress, and is clamped on the male connecting piece 3, thereby limiting the male connecting piece 3 in the connecting hole 20, effectively preventing the male connecting piece 3 from being separated from the connecting hole 20 at will.

[0040] In use, after the battery is loaded in the battery groove 14, the clamping block 22 of the upper cover 2 is inserted into the clamping hole 11 of the box body 1, and the upper cover 2 is buckled on the box body 1. Then, the limiting part 30 of the male connecting piece 3 is screwed into the mounting hole 40 of the female connecting piece 4 by using a screw driver to act on the type slot 320 of the action part 32 of the male connecting piece 3, and the installation of the battery is completed.

[0041] The technical features not explained in the embodiment are explained by using the technical features of the embodiment 1, and will not be described here. Embodiment 3

[0043] As shown in Figures 1-3 , 6-7, the utility model discloses a safe battery box, including box body 1, this box body 1 is used to set battery pack, be equipped with an upper cover 2 on this box body 1, at least one connecting hole 20 is equipped with a male connecting piece 3 in this connecting hole 20, one end of this male connecting piece 3 is equipped with limiting part 30, a limiting piece 6 is set on this male connecting piece 3, this limiting piece 6 is used to cooperate limiting part 30 and prevent male connecting piece 3 from falling off upper cover 2, female connecting piece 4 is fixedly connected with male connecting piece 3 in the connecting hole 20 of the box body 1 corresponding screw setting place, the connecting hole 20 is equipped with step 23, and the step 23 is used to cooperate male connecting piece 3 and connecting piece 4 and fix upper cover 2 cover on box body 1.

[0044] Further, as shown in Figures 1-3, 6-7, the middle of the limiting member 6 is provided with a limiting hole 60, the limiting hole 60 is provided with at least two limiting units 61, each of the limiting units 61 is used to cooperate with the limiting portion 30 of the male connecting piece 3 to prevent the male connecting piece 3 from being separated from the upper cover; wherein, the outer diameter of the limiting member 6 is greater than the connecting hole 20, each of the limiting units 61 extends towards the middle of the limiting member 6, and forms a bundle structure, the bundle structure is bundled on the connecting body 31 of the male connecting piece 3, the male connecting piece 3 is limited in the connecting hole 20 of the upper cover 2 through the limiting member 6, when the male connecting piece 3 is lifted from the connecting hole 20, the male connecting piece 3 is hindered from leaving the connecting hole 20 under the cooperation of the limiting member 6 and the step of the connecting hole 20, thereby effectively preventing the male connecting piece 3 from being separated from the upper cover; it should be noted that the diameter of the limiting portion 30 is greater than the connecting body 31, which can effectively prevent the male connecting piece 3 from being separated from the limiting member 6 at will; preferably, the number of the limiting units 61 is 3, three limiting units 61 are used to cooperate with each other, which can not only ensure that the male connecting piece 3 can be easily assembled into the connecting hole 20, but also ensure the limiting and anti-separation effect of each limiting unit 61 on the male connecting piece 3; it should be noted that the number of the limiting units 61 can be selected according to the actual design needs of the product structure, which is not limited herein.

[0045] Further, as shown in Figures 1-3 , 6-7, the male connecting piece 3 is composed of a connecting body 31 and an acting portion 32 provided at the other end of the connecting body 31, the connecting body 31, the acting portion 32 and the limiting portion 30 are integrally formed, the acting portion 32 is provided with a type groove 320, the type groove 320 is used to assemble and disassemble the male connecting piece 3, the limiting portion 30 is provided at one end of the connecting body 31, the diameter of the connecting body 31 is smaller than the diameter of the limiting portion 30, the limiting units 61 are bundled on the connecting body 31, the limiting portion 30 prevents the male connecting piece 3 from being separated from the connecting hole 20, and cooperates with the female connecting piece 4 to fix the upper cover 2 on the box body 1, the limiting portion 30 of the male connecting piece 3 is provided at the end of one end of the connecting body 31, the limiting portion 30 is provided with external threads 35, the middle of the female connecting piece 4 is provided with a mounting hole 40, the mounting hole 40 is provided with internal threads 41, the mounting hole 40 is threadedly connected with the external threads 35 of the limiting portion 30 through the internal threads 41, the threaded cooperation of the male connecting piece 3 and the female connecting piece 4 facilitates the user to disassemble and assemble the upper cover 2 and replace the battery.

[0046] Further, as shown in Figures 1-3The box body 1 includes at least a first slot 12, a second slot 13 arranged at one end, a battery slot 14 arranged at the other end, a first conductive part 15 arranged between the first slot 12 and the battery slot 14, a second conductive part 16 arranged between the second slot 13 and the battery slot 14, and a third conductive part 17 arranged at the other end of the battery slot 14. The first slot 12 is provided with a power switch 5, which is electrically connected with the first conductive part 15 and the second conductive part 16. The female connector 4 is fixedly connected between the first slot 12 and the second slot 13, and the power switch 5 is clamped and fixed in the first slot 12. Specifically, the power switch 5 includes two conductive ends, one of which is electrically connected with the first conductive part 15 through a wire, and the other of which is electrically connected with the second conductive part 16 through a wire. A first clamping slot 140 is arranged between the first slot 12 and the battery slot 14, the first conductive part 15 is fixedly connected with the first clamping slot 140, a second clamping slot 141 is arranged between the second slot 13 and the battery slot 14, the second conductive part 16 is fixedly connected with the second clamping slot 141, a third clamping slot 142 is arranged at the other end of the battery slot 14, and the third conductive part 17 is fixedly connected with the third clamping slot 142. An isolation part 18 is arranged in the middle of the battery slot 14, which is used to separate the installation of the batteries (not shown). The isolation part 18 is integrally formed with the box body 1, and two protrusions 180 are arranged above the isolation part 18, which are used to support the upper cover and prevent the upper cover from being pressed downward to damage the batteries. A hook 19 is arranged at one end of the box body 1, which is used to facilitate hanging fixation during use.

[0047] During assembly, after the male connector 3 is arranged in the connecting hole 20, one end of the limiting part 30 of the male connector 3 is inserted into the limiting hole 60 of the limiting part 6, and the male connector 3 is arranged in the limiting hole 60. It should be noted that since the diameter of the limiting part 30 of the male connector 3 is larger than the diameter of the limiting hole 60, when the male connector 3 is inserted into the limiting part 6, the limiting part 30 exerts a force on each limiting body 61, causing each limiting body 61 to deform and gradually expand the limiting hole 60. After the limiting part 30 enters the limiting hole 60, the limiting part 30 removes the force on each limiting body 61, and each limiting body 61 returns to its original state under the action of the reverse stress, thereby being clamped on the connecting body 31 of the male connector 3, and further limiting the male connector 3 on the limiting part 6, effectively preventing the male connector 3 from being separated from the limiting part 6 at will.

[0048] During use, after the batteries are arranged in the battery slot 14, the clamping block 22 of the upper cover 2 is inserted into the clamping hole 11 of the box body 1, and the upper cover 2 is clamped on the box body 1. Then, the type slot 320 of the acting part 32 of the male connector 3 is acted on by a screwdriver, the limiting part 30 of the male connector 3 is screwed into the mounting hole 40 of the female connector 4, and the installation of the batteries is completed.

[0049] The above merely describes the preferred embodiments of the present application, and is not intended to limit the scope of the present application, so that equivalent changes or decorations made by ordinary engineering technicians in the art to the structure, features and principles described in the present application should fall within the scope of the present application.

Claims

1. A safe battery case using, comprising a case body for setting a battery pack, the case body being provided with an upper cover, characterized in that: The upper cover is provided with at least one connecting hole, at least two limiting pieces are arranged in the connecting hole, a male connecting piece is arranged in the connecting hole, one end of the male connecting piece is provided with a limiting part, and the limiting part is used to cooperate with the limiting piece to prevent the male connecting piece from falling off the upper cover.

2. The safe battery case of claim 1, wherein: One end of the limiting piece of the upper cover is provided with a guide surface, which is used for guiding the assembly of the male connecting piece, and each limiting piece cooperates with each other to prevent the male connecting piece from falling off.

3. The safe battery case of claim 1, wherein: The male connecting piece is composed of a connecting body and an action part arranged at the other end of the connecting body, a type groove is arranged on the action part, the type groove is used for assembling and disassembling the male connecting piece, and the limiting part is arranged at one end of the connecting body.

4. The safe battery case of claim 3, wherein: The limiting part of the male connecting piece is arranged at the end of one end of the connecting body, an external thread is arranged on the limiting part, a mounting hole is arranged in the middle of the female connecting piece, an internal thread is arranged in the mounting hole, and the mounting hole is threadedly connected with the external thread of the limiting part through the internal thread.

5. The battery case of claim 3, wherein: One end of the limiting part of the male connecting piece is provided with a connecting section, an external thread is arranged on the connecting section, a mounting hole is arranged in the middle of the female connecting piece, an internal thread is arranged in the mounting hole, and the mounting hole is threadedly connected with the external thread of the limiting part through the internal thread, wherein the size of the limiting part gradually increases from the connecting section to the connecting body.

6. The safe battery case of claim 1, wherein: The box body comprises at least one first groove, a second groove arranged at one end, a battery groove arranged at the other end of the box body, a first conductive piece arranged between the first groove and the battery groove, a second conductive piece arranged between the second groove and the battery groove, and a third conductive piece arranged at the other end of the battery groove, a power switch is arranged in the first groove, and the power switch is electrically connected with the first conductive piece and the second conductive piece respectively, and the female connecting piece is fixedly connected between the first groove and the second groove.

7. A safety battery case, comprising a case body for setting a battery pack, the case body being provided with an upper cover, characterized in that: One end of the upper cover is provided with at least one connecting hole, a male connecting piece is arranged in the connecting hole, one end of the male connecting piece is provided with a limiting part, a limiting piece is sleeved on the male connecting piece, the limiting piece is used to cooperate with the limiting part to prevent the male connecting piece from falling off the upper cover, and the box body is provided with a female connecting piece corresponding to the screw, and the female connecting piece is fixedly connected with the male connecting piece.

8. The battery case of claim 7, wherein: The male connecting piece is composed of a connecting body and an action part arranged at the other end of the connecting body, a type groove is arranged on the action part, the type groove is used for assembling and disassembling the male connecting piece, and the limiting part is arranged at one end of the connecting body, and an external thread is arranged on the limiting part.

9. The battery case of claim 7, wherein: The limiting part of the male connecting piece is arranged at the end of one end of the connecting body, an external thread is arranged on the limiting part, a mounting hole is arranged in the middle of the female connecting piece, an internal thread is arranged in the mounting hole, and the mounting hole is threadedly connected with the external thread of the limiting part through the internal thread. One end of the limiting part of the male connecting piece is provided with a connecting section, an external thread is arranged on the connecting section, a mounting hole is arranged in the middle of the female connecting piece, an internal thread is arranged in the mounting hole, and the mounting hole is threadedly connected with the external thread of the limiting part through the internal thread, wherein the size of the limiting part gradually increases from the connecting section to the connecting body. The box body comprises at least one first groove, a second groove arranged at one end, a battery groove arranged at the other end of the box body, a first conductive piece arranged between the first groove and the battery groove, a second conductive piece arranged between the second groove and the battery groove, and a third conductive piece arranged at the other end of the battery groove, a power switch is arranged in the first groove, and the power switch is electrically connected with the first conductive piece and the second conductive piece respectively, and the female connecting piece is fixedly connected between the first groove and the second groove. One end of the upper cover is provided with at least one connecting hole, a male connecting piece is arranged in the connecting hole, one end of the male connecting piece is provided with a limiting part, a limiting piece is sleeved on the male connecting piece, the limiting piece is used to cooperate with the limiting part to prevent the male connecting piece from falling off the upper cover, and the box body is provided with a female connecting piece corresponding to the screw, and the female connecting piece is fixedly connected with the male connecting piece. The male connecting piece is composed of a connecting body and an action part arranged at the other end of the connecting body, a type groove is arranged on the action part, the type groove is used for assembling and disassembling the male connecting piece, and the limiting part is arranged at one end of the connecting body, and an external thread is arranged on the limiting part. The limiting part of the male connecting piece is arranged at the end of one end of the connecting body, an external thread is arranged on the limiting part, a mounting hole is arranged in the middle of the female connecting piece, an internal thread is arranged in the mounting hole, and the mounting hole is threadedly connected with the external thread of the limiting part through the internal thread. The limiting part of the male connecting piece is arranged at the end of one end of the connecting body, an external thread is arranged on the limiting part, a mounting hole is arranged in the middle of the female connecting piece, an internal thread is arranged in the mounting hole, and the mounting hole is threadedly connected with the external thread of the limiting part through the internal thread.

10. The battery case of claim 7, wherein: The box body comprises at least a first slot body, a second slot body, a battery slot arranged at one end of the box body, a first conductive part arranged between the first slot body and the battery slot, a second conductive part arranged between the second slot body and the battery slot, and a third conductive part arranged at the other end of the battery slot, a power switch is arranged in the first slot body, the power switch is electrically connected with the first conductive part and the second conductive part respectively, and the female connector is fixedly connected between the first slot body and the second slot body.

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