Anti-theft battery box

Abstract

The present invention relates to the field of electric vehicle production technology, specifically an anti-theft battery box, including a battery box body that can be detachably mounted on an electric vehicle frame, the battery box body including a box body, a baffle, and a handle, the electric vehicle frame being provided with a placement slot for mounting the box body, a clamping block being movably mounted on the inner side wall of the placement slot, the clamping block being connected to a control device, and the electric vehicle frame being provided with a power connection port electrically connected to the control device. The battery box of the present invention allows for access to batteries through an opening on a side other than the top wall, so that the batteries can only be removed after the battery box body is taken out of the electric vehicle frame, the control device fixes the battery box body to the electric vehicle frame, and the control device can only release the fixation of the battery box body when a stable household fixed power source is connected, thereby solving the problem of batteries being easily stolen outdoors and facilitating the user's disassembly and assembly of the battery box and access to the batteries.

Description

Technical Field

[0001] The present invention relates to the technical field of battery boxes, in particular to an anti-theft battery box. Background Art

[0002] With the rapid development of modern society, people basically use means of transportation instead of walking for shorter trips. Electric vehicles have become one of the most commonly used means of transportation because they are small, light and easy to ride. Electric vehicles have a simple structure. The electric vehicle battery is the power source of the entire vehicle and has high value. It is small in size and easy to disassemble, so it is less difficult to be stolen. After being stolen, it is easy to transport and sell the stolen goods. Therefore, the batteries of electric vehicles are often stolen. If an electric vehicle is parked on the roadside, thieves can easily steal the battery in just a few minutes without even attracting the attention of passers-by, leaving only the electric vehicle frame, which will cause the entire electric vehicle to fail and cause personal property loss. If the battery and battery box are welded to the frame, although it can prevent the battery from being stolen to a certain extent, it is inconvenient to maintain and replace the battery in the future. It also makes it impossible to quickly increase the battery life of the electric vehicle by equipping multiple batteries, which limits the use of electric vehicles.

[0003] Therefore, it is urgent to design an anti-theft battery box, which can prevent the battery box and batteries from being quickly stolen outdoors, and facilitate the installation and removal of the battery box and batteries by electric vehicle users. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-theft battery box. By connecting the battery box body and the battery to the electric vehicle frame, the battery box body and the battery can be removed from the electric vehicle frame only when a stable household 220V fixed power supply is connected. This can not only prevent the battery from being easily stolen outdoors, but also facilitate electric vehicle users to quickly install and remove the battery box and the battery.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The battery box is provided with a battery box body that can be detachably mounted on the frame of an electric vehicle, the battery box body comprising a box body, a baffle and a handle, the top surface of the box body being installed with a handle, the handle being used to extract the box body, a cavity for accommodating batteries being provided in the box body, an opening for taking and placing batteries being provided on a side wall of one side of the box body, the opening being connected to the cavity, and the opening being located on the side of the box body other than the top wall, a baffle being installed on the box body for closing the opening and fixing the batteries in the box body, a placement groove for installing the box body being provided on the frame of the electric vehicle, a card block being movably mounted on the inner side wall of the placement groove, the card block being used to limit the up and down movement of the box body in the placement groove, a control device being connected to the card block, a power connection port being electrically connected to the control device being provided on the frame of the electric vehicle, and the control device can only release the card block from fixing the box body after the power connection port is connected to a stable 220V household power supply.

[0007] Batteries that can provide a stable 220V power supply are generally large in size and costly. Therefore, it is inconvenient and difficult for thieves to carry a battery that can provide a stable 220V power supply when stealing the battery car battery outdoors. Therefore, there is no way to release the block from fixing the box body, and thus the box body cannot be lifted up from the placement slot. Since the opening for taking out the battery is opened on the non-top wall side of the box body, when the box body is not taken out of the placement slot, the opening is blocked by the side wall of the placement slot, and the battery cannot be taken out from the box body, thereby achieving a better anti-theft effect. When the user of the battery car needs to remove the battery, he only needs to move the battery car to a place that can provide a stable 220V power supply, and then connect the power supply to the power connector to release the block from fixing the box body. The battery box and the battery are fixed together, and then the box body is taken out from the placement slot, and the battery in the box body can be quickly installed and removed from the opening, which can not only prevent the battery from being easily stolen outdoors, but also facilitate the electric vehicle user to quickly install and remove the battery box and the battery; compared with the traditional method of using screws to fix the battery box and the battery, the anti-theft effect of the method of fixing the box body and the battery by the card block is better, and the anti-theft design of the present invention can also be used in conjunction with the existing method of fixing the battery box with screws, which can increase the stability of the battery box and the battery and increase the difficulty for thieves to steal the battery. It only increases the time and difficulty for the user of the battery vehicle to remove the battery. Specifically, whether to use the method of fixing the box body with screws can be selected according to actual conditions.

[0008] A protrusion is fixedly installed on the side wall of one side of the box body, and the protrusion is made of aluminum alloy material. A sliding groove that closely matches the protrusion is opened on the inner side wall of one side of the placement groove. The protrusion and the inner side wall of the sliding groove are closely matched, which can prevent the box body from shaking back and forth and left and right after being installed in the placement groove. The protrusion made of aluminum alloy material not only has high mechanical strength, but also has good heat dissipation performance, which can dissipate the heat conducted to the box body and the protrusion in time. The distance between the four side walls of the box body and the four inner side walls of the placement groove is 20-25mm. The electric vehicle battery and the box body need to dissipate heat during use to ensure that the operating temperature of the battery is within a reasonable range; generally speaking, a certain gap must be maintained between the box body and the side walls of the placement groove to ensure normal heat dissipation of the battery box; the distance between the box body and the side walls of the placement groove should be at least The spacing is 20mm to allow air to circulate around the box and take away the dissipated heat. If the spacing is too small, the air around the box will not be able to circulate, resulting in the battery being unable to dissipate heat normally, thus affecting the battery life and performance. Of course, the distance between the box and the side wall of the placement slot is not the larger the better. When the distance between the box and the side wall of the placement slot is too large, on the one hand, it will increase the size of the card block and reduce the stability of the card block to the box. On the other hand, it will be easier for thieves to pry the card block from the gap between the box and the side wall of the placement slot, thereby forcing the card block to be pulled out from the side wall of the box and completing the theft of the box and battery. Therefore, in order to ensure the heat dissipation effect of the box and battery while avoiding the reduction of stability and safety of the box and battery installation, the distance between the box and the side wall of the placement slot should be set to no more than 25mm.

[0009] The control device includes two electric telescopic rods symmetrically fixedly mounted on the electric vehicle frame, and the two electric telescopic rods are respectively arranged on both sides of the slide. Since the internal space of the electric vehicle frame is small, the selected electric telescopic rod is required to be small. The electric telescopic rod can be a linear direct-acting electromagnet. The linear direct-acting electromagnets that can be used are as follows: suction cup electromagnets and push-pull electromagnets; the suction cup electromagnet generates a magnetic field when the coil of the suction cup electromagnet is energized, and the E-shaped piece attracts the magnetic conductor close to its suction surface to complete the function; the push-pull electromagnet also forms a push and pull action through the magnetic core and electromagnetic coil of the electromagnet. , running in a whole, it moves like a piston, and its structure is sometimes transformed quickly by springs; after the push-pull electromagnet is inserted into the iron core inside the energized solenoid, the iron core is magnetized by the magnetic field of the energized solenoid, and the magnetized iron core also becomes a magnet. In this way, due to the superposition of the two magnetic fields, the magnetism of the solenoid is greatly enhanced. Due to the use of high magnetic permeability materials and a magnetic circuit structure with a tapered fit, the product is small in size and light in weight. Compared with conventional small electromagnets, its stroke and attraction are larger; the push-pull electromagnet meets the conditions of small model, large stroke and attraction, so the push-pull electromagnet can be used for the electric telescopic rod here.

[0010] There are two card blocks, and the two card blocks are respectively fixedly connected to the output ends of the two electric telescopic rods. Two card slots corresponding to the card blocks are symmetrically provided on the outer wall of the box. The protrusion is used to limit the horizontal movement of the box in the placement slot, and the card block cooperates with the card slot to limit the up and down movement of the box in the placement slot. The two can stably fix the box in the placement slot. Therefore, the two electric telescopic rods are respectively arranged on both sides of the slide slot to make the side walls of the box more evenly stressed, thereby avoiding damage to the box caused by local force concentration. The card slot is located on the side wall of the bottom end of the box, and the length of the card block is equal to 2-3 times the depth of the slot. When the depth of the slot is less than 1 / 3 of the length of the card block, since the connection between the card block and the slot is far away from the fixed end of the card block, the torque provided by the card block to resist bending deformation when the card block is subjected to force is small, so the card block is prone to bending. Therefore, the length of the card block cannot be greater than 3 times the depth of the slot. When the depth of the slot is greater than 1 / 2 of the length of the card block, in order to avoid the side wall of the box being pierced by the card block, the thickness of the side wall of the box needs to be set larger, which will lead to increased costs on the one hand and worse heat dissipation of the box and the battery on the other hand. Therefore, the length of the card block cannot be less than 2 times the depth of the slot.

[0011] The ends of the two clamping blocks away from the electric telescopic rod are both tapered, and the outer edges of the inner walls of the two clamping slots are open and match the tapered surfaces, making it easier for the electric telescopic rod to stably insert the clamping blocks into the corresponding clamping slots. The two clamping blocks are made of stainless steel, and the outer sides of the two clamping blocks are provided with an insulating coating. The clamping blocks have high mechanical strength and good insulation effect, which can prevent the clamping blocks from easily bending when subjected to force. The power connector is connected in series with a voltage identification module, and the power connector is electrically connected to the two electric telescopic rods. Household fixed power supplies generally use a stable supply voltage, thereby continuously outputting a stable 220V voltage. However, mobile power supplies do not have the same stable output voltage as fixed power supplies, and the output voltage will fluctuate as the battery power decreases. Therefore, a voltage identification module is added to the power connector to distinguish between fixed power supplies and mobile power supplies by detecting the power supply voltage. Only a stable fixed power supply can power the electric telescopic rod and trigger the clamping blocks to release the fixing of the box. Even if a thief uses a 220V mobile power supply, the box and battery cannot be stolen from the electric vehicle, thereby further improving the safety of the battery box and battery.

[0012] The handle is rotatably connected to the top wall of the box body, and a storage groove cooperating with the handle is provided on the top wall of the box body, and both ends of the handle are detachably connected to the inner side walls of the storage groove. The battery can be electrically connected to the battery vehicle body from the top of the box body or from the side wall. When connecting from the top of the box body, it is necessary to avoid the installation space of the handle. When connecting from the side wall of the box body, it is necessary to first electrically connect the box body to the battery vehicle body, and then place the box body in the placement groove, and a storage port for storing the connecting line needs to be provided on the inner side wall of the placement groove.

[0013] The tensile strength of the material used to make the handle is lower than that of the material used to make the box body. The materials used to make the battery box body are generally three types of plastics, iron and aluminum. Taking into account efficient production and material costs, the battery box body is generally made of plastic materials. Commonly used plastics include PVC, PE, PP, ABS and PMMA. In order to achieve the desired effect, the materials used to make the handle and the box body are different. When the required mechanical properties are met, the tensile strength of the material used to make the handle must be weaker than that of the material used to make the box body. If a thief wants to forcibly take out the battery box body, he can only use the handle as a fulcrum, and it is difficult to steal from other places. When a thief exerts a force far greater than the weight of a fully loaded battery box, since the tensile strength of the handle material is weaker than that of the box body, and the output end of the electric telescopic rod is basically made of metal, the tensile strength of which is much higher than that of plastic, the force exerted by the thief will first exceed the tensile strength of the handle material, and the handle will be damaged first, leaving the thief with no fulcrum to apply force to forcibly remove the battery box body, thereby effectively preventing the box body and the batteries inside from being stolen, further improving the safety performance of the box body and the batteries, and the handle is detachably connected to the box body, so when the handle is damaged, it can be conveniently and quickly replaced.

[0014] The electric vehicle frame is provided with a storage box for closing the placement slot, and a soft block is fixedly installed at the bottom of the storage box, and when the box body is in the placement slot, the bottom wall is directly in contact with the bottom wall inside the placement slot, and the soft block material is foam rubber, and the storage box and the soft block are used to press the box body installed in the placement slot downward, thereby reducing the force on the block and the stability of the box body fixation, and preventing the vehicle body from vibrating during driving, causing the protrusion and the block to be subjected to excessive force and wear. The top surface of the box body is a polytetrafluoroethylene plate, and the thickness of the polytetrafluoroethylene plate is 10mm. The top surface of the box body is made of polytetrafluoroethylene plate, which has high strength, high temperature resistance, insulation and is not easy to deform. Therefore, the top surface of the box body is not easily damaged or deformed after being pressed by the storage box and the soft block, thereby effectively protecting the battery in the box. The standard thickness of the polytetrafluoroethylene plate is 3mm, 5mm, 8mm, 10mm, etc. The use of 10mm polytetrafluoroethylene plate is not only strong, but also convenient to purchase directly from the market.

[0015] A damping rod is fixedly installed on the fixed shells of the two electric telescopic rods, and one end of the two blocking blocks is fixedly connected to the damping rod. When the electric telescopic rod is started, the blocking block is restricted by the damping rod and can only slowly approach the box and extend into the corresponding blocking slot, thereby avoiding wear of the blocking slot and damage to the blocking block caused by rapid insertion of the blocking block into the blocking slot, and avoiding the case where the box is installed in the placement slot and the side wall of the box is pierced due to the rapid extension of the blocking block when the blocking slot has not yet moved to the position corresponding to the blocking block, thereby effectively protecting the blocking block and the box.

[0016] Two mounting blocks are symmetrically fixedly installed on the side walls on both sides of the electric vehicle frame, and the mounting blocks are located directly above the card blocks. The two adjacent mounting blocks are movably connected with a blocking piece, which is used to prevent the card block from extending into the card slot. The two mounting blocks are welded to the electric vehicle frame, which can protect the electric telescopic rod and the card block directly below the mounting blocks to a certain extent, and prevent thieves from directly observing the electric telescopic rod and the card block from the gap between the box body and the side wall of the placement slot; when the electric telescopic rod is powered on, the card block is driven to be pulled out of the card slot, thereby facilitating the removal of the box body from the placement slot. In order to avoid the electric telescopic rod being powered on for a long time State, after taking the box out of the placement slot, move the baffle downward to block the baffle on one side of the card block. At this time, after the electric telescopic rod is powered off, the card block will not be fully extended into the placement slot due to the block block. Therefore, there is no need to power on the electric telescopic rod again when installing the box next time. You only need to install the box into the placement slot and then move the baffle upward. At this time, the spring and damping rod connected to the card block will slowly push the card block into the corresponding card slot. The baffle can be fixed on the mounting block by magnetic attraction. After removing the baffle from between the box and the card block, it is fixed to the mounting block by magnetic attraction, thereby preventing the baffle from shaking at will during driving.

[0017] The power connection port is a customized interface, and the power connection port is connected to the three-wire plug through a customized conversion connector. In order to further improve the safety performance of the battery box and the battery, the power connection port can be set as a customized interface when the electric vehicle leaves the factory, and the interface can be equipped with a customized conversion connector. That is, only by using this conversion connector can it be connected to a standard three-wire plug. Therefore, even if the thief uses a stable 220V fixed power supply, the electric telescopic pole will not be able to be started due to the lack of the conversion connector, thereby further improving the safety performance of the battery box and the battery.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The battery box of the present invention is used to take out and put in the battery by opening on the side other than the top wall. Therefore, the battery can only be removed after the battery box body is taken out from the electric vehicle frame. The control device fixes the battery box body to the electric vehicle frame. Only when a stable household fixed power supply is connected can the control device release the fixation of the battery box body. When the battery needs to be repaired or replaced, the battery box body can be conveniently and quickly taken out from the electric vehicle frame and the battery can be removed by connecting the control device to the household power supply. However, in an environment where it is impossible to connect to a stable household fixed power supply, such as outdoors, the battery box body and the battery cannot be removed from the electric vehicle frame and may be stolen due to the limitations of the control device and the electric vehicle frame. This not only solves the problem of batteries being easily stolen outdoors, but also makes it convenient for users to disassemble and assemble the battery box and take out and put in the battery.

[0020] 2. By setting the mounting block and the baffle, when the battery box body is removed from the placement slot, the electric telescopic rod does not need to be powered on for a long time to keep the card block retracted, which not only increases the service life of the spring of the electric telescopic rod, but also prevents the electric telescopic rod from being powered on for a long time and causing heat failure. Moreover, the mounting block and the baffle are directly set on the top of the card block, which can further protect the card block, thereby preventing the card block from being moved by thieves and causing the battery box body and batteries to be stolen, further improving the safety of the battery box.

[0021] 3. In the present invention, the handle and the box body are made of different materials, and the tensile strength of the handle material is lower than that of the box body. When a thief forcibly removes the battery box body, the handle will break first because its strength is lower than that of the box body, causing the thief to lose his fulcrum and making it difficult to apply force to the battery box body to forcibly remove the battery box body. This can prevent the battery box body and batteries from being stolen, and can also prevent the battery box body, electric telescopic rod and block from being damaged due to excessive upward pulling force during theft, thereby improving the safety and use effect of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a side view of the battery box of the present invention after being installed inside an electric vehicle;

[0023] Figure 2 This is a top view of the battery box of the present invention after being installed inside an electric vehicle;

[0024] Figure 3 Schematic diagram of the overall structure of the battery box of the present invention;

[0025] Figure 4 for Figure 2 Middle AA section view;

[0026] Figure 5 for Figure 1 A magnified view of the structure of part B;

[0027] Figure 6 for Figure 4 A magnified view of the structure of part C in the middle;

[0028] Figure 7 for Figure 2 A magnified view of the structure of part D in the middle.

[0029] In the figure: 1. Electric vehicle frame; 1001. Placement slot; 1002. Slide slot; 1003. Power connection port; 2. Battery box body; 2001. Box body; 2002. Baffle; 2003. Handle; 2004. Bump; 2005. Card slot; 2006. Storage slot; 3. Electric telescopic rod; 4. Card block; 5. Mounting block; 6. Baffle; 7. Soft block. DETAILED DESCRIPTION

[0030] See also Figures 1 to 7 The present invention provides an anti-theft battery box, and the technical solution is as follows:

[0031] An anti-theft battery box includes a battery box body 2, which includes a box body 2001, a baffle 2002 and a handle 2003. The handle 2003 is installed on the top surface of the box body 2001, and the handle 2003 is used to extract the box body 2001. The handle 2003 is rotatably connected to the top wall of the box body 2001. The top wall of the box body 2001 is provided with a storage groove 2006 that cooperates with the handle 2003, and the two ends of the handle 2003 are detachably connected to the inner side walls of the storage groove 2006. The tensile strength of the material making the handle 2003 is lower than the tensile strength of the material making the box body 2001. The box body 2001 can be made of PP material with stronger tensile strength, while the handle 2003 is made of PE material with weaker tensile strength.

[0032] If a thief wants to forcibly remove the battery box body 2, he can only use the handle 2003 as a fulcrum, and it is difficult to exert force at other places. When the thief exerts a force far greater than the gravity of the fully loaded battery box body 2, since the tensile strength of the material making the handle 2003 is weaker than the tensile strength of the material making the box body 2001, the output end of the electric telescopic rod 3 is basically made of metal, and the tensile strength is much higher than the tensile strength of plastic. The force applied by the thief will first exceed the tensile strength of the handle 2003 material, and the handle 2003 will be damaged first, leaving the thief with no fulcrum to apply force to forcibly remove the battery box body 2, thereby effectively preventing the box body 2001 and the batteries inside from being stolen, further improving the safety performance of the box body 2001 and the batteries. Moreover, the handle 2003 is detachably connected to the box body 2001, and when the handle 2003 is damaged, it can be easily and quickly replaced.

[0033] The box 2001 is provided with a cavity for accommodating batteries, and the cavity can be loaded with five lead-acid batteries of 150*100*95 in size. An opening for taking the batteries is opened on the side wall of one side of the box 2001, and the opening is connected to the cavity and is located on the side of the box 2001 that is not the top wall. The box 2001 is equipped with a baffle 2002 for closing the opening and fixing the batteries in the box 2001. The baffle 2002 is connected to the box 2001 by screws. The electric vehicle frame 1 is provided with a placement slot 10 for installing the box 2001. 01, a card block 4 is movably installed on the inner wall of the placement groove 1001, a protrusion 2004 is fixedly installed on the side wall of one side of the box body 2001, and the protrusion 2004 is made of aluminum alloy material, and a sliding groove 1002 that closely matches the protrusion 2004 is opened on the inner wall of one side of the placement groove 1001, and the distance between the four side walls of the box body 2001 and the four side inner walls of the placement groove 1001 is 23mm; the electric vehicle battery and the box body 2001 need to dissipate heat during use to ensure that the operating temperature of the battery is within a reasonable range; generally speaking, the box body 2001 and the placement The distance between the side walls of the placement slot 1001 must be kept at a certain distance to ensure normal heat dissipation of the battery box; the distance between the box body 2001 and the side walls of the placement slot 1001 should be kept at least 20mm, so that the air around the box body 2001 can circulate and take away the dissipated heat; if the distance is too small, the air around the box body 2001 will not be able to circulate, resulting in the battery not being able to dissipate heat normally, thereby affecting the battery life and performance; of course, the distance between the box body 2001 and the side walls of the placement slot 1001 is not the larger the better. When the distance between the box body 2001 and the side walls of the placement slot 1001 is too small, the battery box 2001 will not be able to circulate, so the battery box 2001 will not be able to circulate normally. If the distance is too large, on the one hand, the size of the card block 4 will increase and the stability of the card block 4 fixing the box 2001 will be reduced. On the other hand, it will be easier for thieves to pry the card block 4 from the gap between the box 2001 and the side wall of the placement groove 1001, thereby forcibly pulling the card block 4 out from the side wall of the box 2001 and completing the theft of the box 2001 and the battery. Therefore, in order to ensure the heat dissipation effect of the box 2001 and the battery while avoiding the reduction of the stability and safety of the installation of the box 2001 and the battery, the distance between the box 2001 and the side wall of the placement groove 1001 is set to 23 mm.

[0034] The card block 4 is connected to a control device, which includes two electric telescopic rods 3 symmetrically fixedly mounted on the electric vehicle frame 1, and the two electric telescopic rods 3 are respectively arranged on both sides of the slide 1002. Since the internal space of the electric vehicle frame 1 is small, the selected electric telescopic rod 3 requires a small model, and the push-pull electromagnet meets the small model condition, and the stroke and attraction are large, so the electric telescopic rod 3 here can use a push-pull electromagnet; there are two card blocks 4, and the two card blocks 4 are respectively fixedly connected to the output ends of the two electric telescopic rods 3, and two card slots 2005 corresponding to the card blocks 4 are symmetrically provided on the outer wall of the box body 2001, and the card slot 2005 is located on the side wall of the bottom end of the box body 2001, and the length of the card block 4 is equal to 3 times the depth of the card slot 2005, and the ends of the two card blocks 4 away from the electric telescopic rod 3 are both conical surfaces, and the two card blocks The outer edges of the inner walls of the groove 2005 are open and matched with the conical surface. The two blocks 4 are made of stainless steel, and the outer sides of the two blocks 4 are provided with an insulating coating. When the depth of the groove 2005 is less than 1 / 3 of the length of the block 4, since the connection part between the block 4 and the groove 2005 is far away from the fixed end of the block 4, the torque provided by the block 4 to resist bending deformation when the force is applied is small, so the block 4 is prone to bending. Therefore, the length of the block 4 cannot be greater than 3 times the depth of the groove 2005. When the depth of the groove 2005 is greater than 1 / 2 of the length of the block 4, in order to prevent the side wall of the box 2001 from being pierced by the block 4, the thickness of the side wall of the box 2001 needs to be set larger, which will lead to increased costs on the one hand and poor heat dissipation of the box 2001 and the battery on the other hand. Therefore, the length of the block 4 is set to be equal to 3 times the depth of the groove 2005.

[0035] A damping rod is fixedly installed on the fixed shell of the two electric telescopic rods 3, and one end of the two blocking blocks 4 is fixedly connected to the damping rod. When the electric telescopic rod 3 is started, the blocking block 4 is restricted by the damping rod and can only slowly approach the box 2001 and extend into the corresponding slot 2005, thereby avoiding the block 4 from being quickly inserted into the slot 2005, causing wear of the slot 2005 and damage to the block 4. In addition, it can avoid the case 2001 being installed in the placement slot 1001. When the slot 2005 has not moved to the position corresponding to the blocking block 4, the blocking block 4 is quickly extended and pierces the side wall of the box 2001, thereby effectively protecting the blocking block 4 and the box 2001.

[0036] Two mounting blocks 5 are symmetrically fixedly installed on the side walls on both sides of the electric vehicle frame 1, and the mounting blocks 5 are located directly above the card block 4. The two adjacent mounting blocks 5 are movably connected with a blocking piece 6, which is used to prevent the card block 4 from extending into the card slot 2005. The two mounting blocks 5 are welded on the electric vehicle frame 1, which can protect the electric telescopic rod 3 and the card block 4 directly below the mounting blocks 5 to a certain extent, and prevent thieves from directly observing the electric telescopic rod 3 and the card block 4 from the gap between the box body 2001 and the side wall of the placement slot 1001; when the electric telescopic rod 3 is powered on, the card block 4 is driven to be pulled out of the card slot 2005, thereby facilitating the removal of the box body 2001 from the placement slot 1001. In order to prevent the electric telescopic rod 3 from being powered on for a long time, After the box body 2001 is taken out from the placement slot 1001, the baffle 6 is moved downward to block the baffle 6 on one side of the block 4. At this time, after the electric telescopic rod 3 is powered off, the block 4 will not be fully extended into the placement slot 1001 due to the block 6. Therefore, the next time the box body 2001 is installed, there is no need to power on the electric telescopic rod 3 again. You only need to install the box body 2001 into the placement slot 1001 and then move the baffle 6 upward. At this time, the spring and damping rod connected to the block 4 will slowly push the block 4 into the corresponding slot 2005. The baffle 6 can be placed and fixed on the mounting block 5 by magnetic attraction. After the baffle 6 is moved out from between the box body 2001 and the block 4, the baffle 6 is fixed to the mounting block 5 by magnetic attraction, thereby preventing the baffle 6 from shaking at will during driving.

[0037] The electric vehicle frame 1 is provided with a power connection port 1003 electrically connected to the control device, and the power connection port 1003 is electrically connected to the two electric telescopic rods 3. A voltage identification module is connected in series to the power connection port 1003. Batteries that can provide a stable 220V power supply are generally large in size and costly. Therefore, it is inconvenient and difficult for thieves to carry a battery that can provide a stable 220V power supply when stealing the battery of the electric vehicle outdoors. Therefore, there is no way to release the fixing of the card block 4 on the box body 2001, so that the box body 2001 cannot be lifted upward from the placement slot 1001. Since the opening for taking out the battery is opened on the non-top wall side of the box body 2001, when the box body 200 When the battery 1 is not taken out from the placement groove 1001, the opening is blocked by the side wall of the placement groove 1001, so that the battery cannot be taken out from the box body 2001, thereby achieving a better anti-theft effect. When the user of the battery car needs to remove the battery, he only needs to move the battery car to a place that can provide a stable 220V power supply, and then connect the power supply to the power connection port 1003 to release the fixation of the block 4 on the box body 2001. Then, the box body 2001 is taken out of the placement groove 1001 and the battery in the box body 2001 can be quickly installed and removed from the opening. This can prevent the battery from being easily stolen outdoors and make it convenient for the electric vehicle user to quickly install and remove the battery box and battery.

[0038] The power connection port 1003 is a customized interface, and the power connection port 1003 is connected to the three-wire plug through a customized conversion connector. In order to further improve the safety performance of the battery box and the battery, the power connection port 1003 can be set as a customized interface when the electric vehicle leaves the factory, and the interface can be equipped with a customized conversion connector, that is, only by using this conversion connector can it be connected to a standard three-wire plug. Therefore, even if a thief uses a stable 220V fixed power supply, the electric telescopic pole 3 will not be able to be started due to the lack of the conversion connector, thereby further improving the safety performance of the battery box and the battery.

[0039] The electric vehicle frame 1 is provided with a storage box for closing the placement groove 1001. A soft block 7 is fixedly installed at the bottom of the storage box, and when the box body 2001 is in the placement groove 1001, the bottom wall is directly in contact with the bottom wall inside the placement groove 1001. The soft block 7 is made of foam rubber. The storage box and the soft block 7 are used to press the box body 2001 installed in the placement groove 1001 downward, thereby reducing the force on the card block 4 and the stability of the box body 2001 fixation, and preventing the vehicle body from vibrating during driving, causing the protrusion 2004 and the card block 4 to be subjected to excessive force and cause wear. The top surface of the box body 2001 is a polytetrafluoroethylene plate, and the thickness of the polytetrafluoroethylene plate is 10 mm. The top surface of the box body 2001 is made of polytetrafluoroethylene plate, which is strong, resistant to high temperature, insulated and not easy to deform. Therefore, the top surface of the box body 2001 is not easily damaged or deformed after being pressed by the storage box and the soft block 7, thereby effectively protecting the battery in the box body 2001.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anti-theft battery box, comprising a battery box body (2) detachably mounted on an electric vehicle frame (1), characterized in that: The battery box body (2) comprises a box body (2001), a baffle (2002) and a handle (2003); the top surface of the box body (2001) is provided with a handle (2003); a cavity for accommodating batteries is provided in the box body (2001); an opening for taking batteries in and out is provided on a side wall of one side of the box body (2001); the opening is communicated with the cavity and is located on a side other than the top wall of the box body (2001); a baffle (2002) is provided on the box body (2001) for closing the opening and fixing the batteries in the box body (2001); The frame (1) is provided with a placement groove (1001) for installing the box body (2001), and a clamping block (4) is movably installed on the inner side wall of the placement groove (1001), and the clamping block (4) is used to limit the up and down movement of the box body (2001) when it is in the placement groove (1001). The clamping block (4) is connected to a control device, and the electric vehicle frame (1) is provided with a power connection port (1003) electrically connected to the control device, and the control device can release the clamping block (4) from fixing the box body (2001) only after the power connection port (1003) is connected to a stable 220V household power supply. A protrusion (2004) is fixedly mounted on one side wall of the box body (2001), and the protrusion (2004) is made of aluminum alloy. A sliding groove (1002) that closely matches the protrusion (2004) is provided on the inner side wall of one side of the placement groove (1001). The distance between the four side walls of the box body (2001) and the four inner side walls of the placement groove (1001) is 20-25 mm. The control device comprises two electric telescopic rods (3) symmetrically fixedly mounted on the electric vehicle frame (1), and the two electric telescopic rods (3) are respectively arranged on both sides of the slide groove (1002), there are two card blocks (4), and the two card blocks (4) are respectively fixedly connected to the output ends of the two electric telescopic rods (3), and two card slots (2005) corresponding to the card blocks (4) are symmetrically opened on the outer side wall of the box (2001), and the card slots (2005) are located on the side wall of the bottom end of the box (2001), and The length of the card block (4) is equal to 2-3 times the depth of the card slot (2005); the ends of the two card blocks (4) away from the electric telescopic rod (3) are both conical; the outer edges of the inner walls of the two card slots (2005) are both open and matched with the conical; the two card blocks (4) are made of stainless steel, and the outer sides of the two card blocks (4) are both provided with an insulating coating; a voltage identification module is connected in series to the power connection port (1003), and the power connection port (1003) is electrically connected to the two electric telescopic rods (3).

2. The anti-theft battery box according to claim 1, characterized in that: The handle (2003) is rotatably connected to the top wall of the box body (2001); a storage groove (2006) cooperating with the handle (2003) is provided on the top wall of the box body (2001); and both ends of the handle (2003) are detachably connected to the inner side walls of the storage groove (2006); the tensile strength of the material of which the handle (2003) is made is less than the tensile strength of the material of which the box body (2001) is made.

3. The anti-theft battery box according to claim 1, characterized in that: The electric vehicle frame (1) is provided with a storage box for closing the placement groove (1001); a soft block (7) is fixedly installed on the bottom of the storage box; and when the box body (2001) is located in the placement groove (1001), the bottom wall directly contacts the bottom wall inside the placement groove (1001); the top surface of the box body (2001) is a polytetrafluoroethylene plate, and the thickness of the polytetrafluoroethylene plate is 10 mm.

4. The anti-theft battery box according to claim 1, characterized in that: A damping rod is fixedly mounted on the fixed housings of the two electric telescopic rods (3), and one end of the two clamping blocks (4) is fixedly connected to the damping rod.

5. The anti-theft battery box according to claim 1, characterized in that: Two mounting blocks (5) are symmetrically fixedly mounted on the side walls of both sides of the electric vehicle frame (1), and the mounting blocks (5) are both located directly above the clamping block (4). Two adjacent mounting blocks (5) are movably connected to a blocking piece (6) that is used to prevent the clamping block (4) from extending into the clamping slot (2005).

6. The anti-theft battery box according to claim 1, characterized in that: The power connection port (1003) is a customized interface, and the power connection port (1003) is connected to a three-wire plug via a customized conversion connector.

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