An abnormal alarm device for replacing and installing an electric vehicle battery pack

Abstract

The present invention provides an abnormal alarm device for replacement and installation of an electric vehicle battery pack, which relates to the field of battery alarm. It includes a mounting shell and an alarm component, wherein the alarm component includes a sound alarm, an energy supply battery, a controller, an alarm light, a double-contact switch, a single-contact switch, a pressure sensor, and a vibration sensor. The sound alarm, energy supply battery, controller, alarm light, and vibration sensor are all fixedly mounted on the mounting shell, and the double-contact switch and the single-contact switch are respectively arranged on the positive and negative terminals of each battery cell, and the pressure sensor is installed on the upper surface of the mounting shell. When the alarm component and the battery pack are stolen, the feedback status of the vibration sensor and the pressure sensor can be used to judge whether the mechanical lock has been violently pried open, so as to give an alarm in time, and the number of triggers of the double-contact switch and the single-contact switch can be used to judge whether the replacement and installation of the battery pack is abnormal.

Description

Technical Field

[0001] The invention relates to the technical field of battery alarms, and in particular to an abnormal alarm device for replacing and installing a battery pack of an electric vehicle. Background Art

[0002] The battery pack of an electric vehicle has the characteristic of renewable energy. Therefore, the theft of battery packs occurs from time to time, and the theft of battery packs will cause great economic losses. Therefore, it is necessary to prevent the battery pack from being stolen.

[0003] At present, whether there is an abnormality in the replacement and installation of a battery pack usually includes two aspects. On the one hand, the electric vehicle is stolen, the protective shell on the outside of the battery pack is violently pried open, and the wires connecting the battery pack to the electric vehicle are cut off manually, resulting in the battery pack being stolen.

[0004] On the other hand, the protective shell and wires of the battery pack are opened normally, the mechanical lock is unlocked, and the battery pack is taken out normally. However, when the battery pack is connected and installed with wires, multiple battery cells need to be connected in series. If the abnormal situation of the same poles of the batteries are connected, it may cause damage to the battery pack or generate sparks, ignite surrounding flammable materials and other dangerous situations. The existing alarm device cannot promptly alarm for abnormal installation of the battery pack, and cannot effectively prevent the battery pack from being stolen and installed abnormally. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an electric vehicle battery pack replacement and installation abnormality alarm device, which solves the problem that the existing alarm device is unable to promptly alarm for abnormal installation of the battery pack and is unable to effectively prevent the battery pack from being stolen and installed abnormally.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an abnormal alarm device for replacing and installing an electric vehicle battery pack, comprising:

[0007] An installation shell, wherein an installation cavity is provided in the installation shell, a battery pack is provided in the installation cavity, the battery pack includes a battery cell, an upper shell is detachably connected to the upper portion of the installation shell, an alarm shell is detachably connected to the front portion of the installation shell, a wiring hole is provided in the upper portion of the installation shell, a sound-permeable hole is provided on the alarm shell, and a wiring groove is provided in the upper portion of the installation shell;

[0008] An alarm component includes a sound alarm, a power supply battery, a controller, an alarm light, a double-contact switch, a single-contact switch, a pressure sensor, and a vibration sensor. The sound alarm, power supply battery, controller, alarm light, and vibration sensor are all fixedly mounted on the mounting shell. The double-contact switch and the single-contact switch are respectively arranged on the positive and negative terminals of each battery cell. The number of triggers of the double-contact switch and the single-contact switch is used to determine whether the replacement of the battery pack is abnormal. The pressure sensor is installed on the upper surface of the mounting shell. The position of the sound alarm corresponds to the position of the sound-permeable hole. By setting up the alarm component and battery pack, when the battery pack is stolen, the feedback status of the vibration sensor and the pressure sensor can be used to determine whether the mechanical lock has been violently pried open, so as to give an alarm in time. During installation, the number of triggers of the double-contact switch and the single-contact switch can be used to determine whether the replacement and installation of the battery pack is abnormal, which greatly ensures the safety of the replacement and installation process of the battery pack.

[0009] Preferably, mounting bolts are provided at both the positive and negative electrodes of the battery cell, electrode indicator marks are provided on the upper surface of the battery cell, and a receiving groove is provided on the outer side of the mounting bolt, and the receiving groove is adapted to the size of the double-contact switch and the single-contact switch.

[0010] Preferably, an installation connection component is provided above the battery pack, and the installation connection component includes a conductive sheet and a mounting nut. An indication channel is provided in the middle of the conductive sheet, and an indication light-emitting diode is fixedly connected in the indication channel. Insulating contacts are fixedly connected to the bottoms of both ends of the conductive sheet, and the insulating contacts are adapted to the size of a double-contact switch and a single-contact switch. A conductive extension tube is fixedly connected to the upper part of the conductive sheet.

[0011] Preferably, the installation and connection assembly also includes a limiting elastic strip, a gasket is fixedly connected to the lower part of the installation nut, an insulating part is snap-connected inside the conductive extension tube, a reinforcing plate is evenly fixedly connected circumferentially between the conductive extension tube and the conductive sheet, a preset through hole is provided on the conductive sheet, a limiting through hole is provided on the installation bolt, and the limiting elastic strip passes through the limiting through hole.

[0012] Preferably, the insulating member comprises an insulating film, a convex portion is provided on the upper portion of the insulating film, and a tear hole is preset on the insulating film at a position corresponding to the convex portion.

[0013] Preferably, the sound alarm, power supply battery, alarm light, double-contact switch, single-contact switch, pressure sensor and vibration sensor are all electrically connected to the controller, and the sound alarm, controller, alarm light, double-contact switch, single-contact switch, pressure sensor and vibration sensor are all electrically connected to the power supply battery.

[0014] Preferably, the angle between the two contact parts of the double-contact switch is one hundred and eighty degrees; a replacement status display screen is provided on the upper part of the alarm housing, the replacement status display screen is electrically connected to the controller and the power supply battery, and the alarm light is provided on the upper part of the mounting housing.

[0015] Preferably, a pressure groove is provided at a position of the upper shell corresponding to the pressure sensor, and a convex column for applying pressure is fixedly connected in the pressure groove.

[0016] The present invention provides an abnormal alarm device for replacing and installing an electric vehicle battery pack. It has the following beneficial effects:

[0017] The present invention provides an alarm component and a battery pack, and when the battery pack is stolen, it can judge whether the mechanical lock is forcibly pried open through the feedback status of the vibration sensor and the pressure sensor, and promptly alarm. During installation, it can judge whether the replacement and installation of the battery pack is abnormal through the triggering number of the double-contact switch and the single-contact switch, thereby greatly ensuring the safety of the battery pack replacement and installation process.

[0018] The present invention can ensure the firmness of the electrode connection by providing an installation connection component, and can intuitively indicate the conduction state through the indicating light emitting diode, so that replacement and installation are simpler.

[0019] The present invention can provide insulation protection for incorrect installation by setting the insulating member, thereby improving the safety of replacement and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall stereogram of the present invention;

[0021] Figure 2 It is an overall split stereogram of the present invention;

[0022] Figure 3 This is a disassembled stereoscopic diagram of the present invention after removing the upper shell;

[0023] Figure 4 This is a top view of the present invention after removing the upper shell;

[0024] Figure 5 It is a split stereoscopic view from the top perspective of the installation connection assembly of the present invention;

[0025] Figure 6 A split stereoscopic view from a bottom perspective of the installation connection assembly of the present invention;

[0026] Figure 7 is a three-dimensional diagram of an insulating member of the present invention;

[0027] Figure 8 is a three-dimensional diagram of a battery pack of the present invention;

[0028] Fig. 9 It is a schematic diagram of electrical connection of the alarm assembly of the present invention;

[0029] Fig.10 It is a judgment flow chart of the alarm component of the present invention.

[0030] Among them, 1. alarm housing; 2. upper housing; 3. installation housing; 4. installation connection assembly; 5. battery pack; 101. sound-permeable hole; 102. replacement status display screen; 301. wiring groove; 302. wiring hole; 401. conductive sheet; 402. preset through hole; 403. indication channel; 404. indication light-emitting diode; 405. insulating contact block; 406. reinforcement sheet; 407. conductive extension tube; 408. insulation piece; 409. gasket; 410. installation Installing nut; 411, limiting elastic strip; 4081, insulating film; 4082, convex part; 4083, tear hole; 501, battery cell; 502, electrode indicator mark; 503, double-contact switch; 504, mounting bolt; 505, limiting through hole; 506, receiving groove; 507, single-contact switch; 601, sound alarm; 602, power supply battery; 603, controller; 604, alarm light; 605, pressure sensor; 606, vibration sensor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1 - Fig.10 As shown, an embodiment of the present invention provides an abnormal alarm device for replacing and installing an electric vehicle battery pack, comprising:

[0033] An installation shell 3 is provided with an installation cavity in the installation shell 3, a battery pack 5 is provided in the installation cavity, the battery pack 5 includes a battery cell 501, an upper shell 2 is detachably connected to the upper portion of the installation shell 3, a pressure groove is provided at a position of the upper shell 2 corresponding to the pressure sensor 605, a convex column for applying pressure is fixedly connected in the pressure groove, an alarm shell 1 is detachably connected to the front portion of the installation shell 3, a wiring hole 302 is provided in the upper portion of the installation shell 3, a sound-permeable hole 101 is provided on the alarm shell 1, and a wiring groove 301 is provided in the upper portion of the installation shell 3;

[0034] refer to Figure 1 , Figure 2The upper shell 2 and the installation shell 3 can be connected by a commonly used mechanical lock method. The mechanical lock provides pressure to the upper shell 2 to press the pressure sensor 605, and the upper shell 2 can also be opened normally by the mechanical lock. The mechanical lock can be a digital password lock or a key lock or other component that provides a locking function. If the mechanical lock is violently pried open, the mechanical lock will be severely damaged. If it is opened normally, the mechanical lock mouth is in good condition. At this time, the vibration sensor 606 cannot detect the vibration of the prying action; the sound-permeable hole 101 facilitates sound propagation and improves the effect of the sound alarm. The wiring hole 302 is used for wiring the wires of the double-contact switch 503 and the single-contact switch 507. The wiring groove 301 is used for installing the wires for wiring. The alarm shell 1 is used to provide protection for the alarm component parts.

[0035] An alarm component, the alarm component includes a sound alarm 601, an energy supply battery 602, a controller 603, an alarm light 604, a double-contact switch 503, a single-contact switch 507, a pressure sensor 605, and a vibration sensor 606. The sound alarm 601, the energy supply battery 602, the controller 603, the alarm light 604, and the vibration sensor 606 are all fixedly mounted on the mounting housing 3. The double-contact switch 503 and the single-contact switch 507 are respectively arranged on the positive and negative terminals of each battery cell 501. The pressure sensor 605 is mounted on the upper surface of the mounting housing 3. The positions of the sound alarm 601 and the sound-permeable hole 101 correspond to each other. The angle between the two contact components of the double-contact switch 503 is 180 degrees. A replacement status display screen 102 is arranged on the upper part of the alarm housing 1. The replacement status display screen 102 is electrically connected to the controller 603 and the energy supply battery 602. The alarm light 604 is arranged on the upper part of the mounting housing 3.

[0036] refer to Figure 3 , Figure 4When the remote controller 603 is used normally and the upper housing 2 is unlocked and opened to install the battery pack 5 in series, the double contact switch 503 can provide two trigger quantities after contact, and the single contact switch 507 can provide one trigger quantity after contact. The double contact switch 503 with an angle of 180 degrees between the two contact parts can provide uniform support for the insulating contact block 405 to ensure the stable installation of the insulating contact block 405. When the alarm is activated, the sound alarm 601 is used to generate a sound alarm, and voice can be recorded, such as: connection error! It can also be a single buzzer alarm, which can be selected according to actual needs. The replacement status display screen 102 is used to display the replacement completion degree, such as the trigger quantity When the trigger quantity is three, one installation connection component 4 is connected; if the trigger quantity is nine, three installation connection components 4 are connected until the target quantity is reached, then it can be determined whether the replacement is completed; the alarm light 604 warns by emitting light, for example, if the alarm light 604 emits red light, it indicates an alarm, and if the alarm light 604 does not emit light, it indicates no alarm; in the event of theft, the upper shell 2 will be pried open, the vibration sensor 606 will collect the vibration signal, and the pressure collected by the pressure sensor 605 will disappear. At this time, the controller 603 controls the sound alarm 601 to emit a sound alarm, and the two sensors cooperate with each other to collect signals, thereby improving the anti-theft function and being able to well recover the losses caused by theft.

[0037] The battery pack 5 includes a battery cell 501, and mounting bolts 504 are provided at the positive and negative electrodes of the battery cell 501. The upper surface of the battery cell 501 is provided with an electrode indicator 502, and an accommodating groove 506 is provided on the outer side of the mounting bolt 504. The accommodating groove 506 is adapted to the size of the double-contact switch 503 and the single-contact switch 507;

[0038] refer to Figure 8 The battery cell 501 is used to provide electrical energy, and the electrode indicator mark 502 indicates whether the mounting bolt 504 is a positive electrode or a negative electrode, which is used to provide an indication for installation.

[0039] A mounting connection assembly 4 is provided above the battery pack 5. The mounting connection assembly 4 includes a conductive sheet 401 and a mounting nut 410. An indication channel 403 is provided in the middle of the conductive sheet 401. An indication light emitting diode 404 is fixedly connected in the indication channel 403. Insulating contacts 405 are fixedly connected to the bottoms of both ends of the conductive sheet 401. The insulating contacts 405 are adapted in size to the double-contact switch 503 and the single-contact switch 507. A conductive extension tube 407 is fixedly connected to the upper part of the conductive sheet 401.

[0040] refer to Figure 3 , Figure 5 , Figure 6During installation, the conductive sheet 401 is partially placed from top to bottom onto the mounting bolt 504, the positive and negative electrodes of adjacent battery cells 501 are connected in series, the insulating contact block 405 is placed into the receiving groove 506, and pressure is applied to the double-contact switch 503 and the single-contact switch 507 to generate three trigger numbers. If the same poles are connected, the trigger number is two or four, and an alarm action can be performed. At this time, under the insulating effect of the insulating member 408, the adjacent electrodes are in a non-conductive state. Therefore, there is no risk of short circuit. If the alarm action is not performed, the insulating member 408 can be removed later, and then the mounting nut 410 can be installed on the mounting bolt 504, and then the limiting elastic strip 411 is used to pass through the limiting through holes 505 of the two mounting bolts 504 to provide restrictions for the mounting nut 410 to prevent the mounting nut 410 from loosening.

[0041] The mounting connection assembly 4 further includes a limiting elastic strip 411, a gasket 409 is fixedly connected to the lower part of the mounting nut 410, an insulating member 408 is snap-connected inside the conductive extension tube 407, a reinforcing sheet 406 is evenly fixedly connected to the conductive extension tube 407 and the conductive sheet 401, a preset through hole 402 is provided on the conductive sheet 401, a limiting through hole 505 is provided on the mounting bolt 504, and the limiting elastic strip 411 passes through the limiting through hole 505;

[0042] refer to Figure 5 The limiting elastic strip 411 can pass through the limiting through holes 505 of the two mounting bolts 504 to provide a limit for the mounting nut 410 to prevent the mounting nut 410 from loosening.

[0043] The insulating member 408 includes an insulating film 4081, a convex portion 4082 is provided on the upper portion of the insulating film 4081, and a tear hole 4083 is preset on the insulating film 4081 and corresponding to the convex portion 4082;

[0044] refer to Figure 7 When removing the insulating member 408, the convex portion 4082 is held and force is applied to opposite sides to tear the insulating film 4081 along the tear hole 4083, thereby completing the removal function of the insulating member 408.

[0045] The sound alarm 601, the energy supply battery 602, the alarm light 604, the double-contact switch 503, the single-contact switch 507, the pressure sensor 605 and the vibration sensor 606 are all electrically connected to the controller 603, and the sound alarm 601, the controller 603, the alarm light 604, the double-contact switch 503, the single-contact switch 507, the pressure sensor 605 and the vibration sensor 606 are all electrically connected to the energy supply battery 602.

[0046] Working principle: When encountering theft, the upper housing 2 will be forcibly pried open, the mechanical lock will be severely damaged, the vibration sensor 606 will collect the vibration signal, and the pressure collected by the pressure sensor 605 will disappear. At this time, the controller 603 controls the sound alarm 601 to sound an alarm. The two sensors cooperate with each other to collect signals, which improves the anti-theft function and can well recover the losses caused by theft;

[0047] When replacing and installing the connecting wires, place multiple battery cells 501 in the installation housing 3 in turn, then place the conductive sheet 401 part from top to bottom onto the installation bolt 504, connect the positive and negative poles of adjacent battery cells 501 in series, place the insulating contact block 405 into the receiving groove 506, apply pressure to the double-contact switch 503 and the single-contact switch 507, and generate three trigger numbers. If the same poles are connected, the trigger number is two or four, and an alarm action can be performed. The sound alarm 601 is used to generate a sound alarm, and the alarm light 604 warns by emitting light. At this time, under the insulating effect of the insulating member 408, the adjacent electrodes are in a non-conductive state. Therefore, there is no risk of short circuit. If the alarm action is not performed, the insulating member 408 can be removed later. 408 is taken out, and by holding the protrusion 4082, force is applied to opposite sides to tear the insulating film 4081 along the tear hole 4083, thereby completing the removal function of the insulating part 408. At this time, whether the indicator light-emitting diode 404 is illuminated is used to determine whether it is conductive. The indicator light-emitting diode 404 is illuminated, indicating that the conductive sheet 401 is conductive. Then, the mounting nut 410 is used to install it on the mounting bolt 504. Then, the limiting elastic strip 411 is used to pass through the limiting through holes 505 of the two mounting bolts 504, and the two ends of the limiting elastic strip 411 are bent to prevent the limiting elastic strip 411 from falling off, so as to provide a limit for the mounting nut 410 to prevent the mounting nut 410 from loosening. Then, the final two positive and negative electrodes are connected to complete the replacement operation. By means of the alarm assembly and the battery pack 5, when the battery pack 5 is stolen, an alarm can be given in time through the feedback status of the vibration sensor 606 and the pressure sensor 605. During installation, the number of triggers of the double-contact switch 503 and the single-contact switch 507 can be used to determine whether the replacement and installation of the battery pack 5 is abnormal, thereby greatly ensuring the safety of the replacement and installation process of the battery pack 5. By means of the installation connection assembly 4, the firmness of the electrode connection can be ensured, and the conduction status can be intuitively indicated by the indicating light-emitting diode 404, making replacement and installation simpler. By means of the insulating member 408, insulation protection can be provided for incorrect installation, thereby improving the safety of replacement and installation.

[0048] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An abnormal alarm device for replacing and installing an electric vehicle battery pack, characterized in that: include: A mounting shell (3), wherein a mounting cavity is provided in the mounting shell (3), a battery pack (5) is provided in the mounting cavity, the battery pack (5) comprises a battery cell (501), the upper portion of the mounting shell (3) is detachably connected to an upper shell (2), the front portion of the mounting shell (3) is detachably connected to an alarm shell (1), a wiring hole (302) is provided in the upper portion of the mounting shell (3), a sound-permeable hole (101) is provided in the alarm shell (1), and a wiring groove (301) is provided in the upper portion of the mounting shell (3); An alarm component, the alarm component comprising a sound alarm (601), an energy supply battery (602), a controller (603), an alarm light (604), a double contact switch (503), a single contact switch (507), a pressure sensor (605), and a vibration sensor (606); the sound alarm (601), the energy supply battery (602), the controller (603), the alarm light (604), and the vibration sensor (606) are all fixedly mounted on a mounting housing (3); the double contact switch (503) and the single contact switch (507) are respectively arranged on the positive and negative electrode terminals of each battery cell (501); the number of triggers of the double contact switch (503) and the single contact switch (507) is used to determine whether the replacement of the battery pack (5) is abnormal; the pressure sensor (605) is mounted on the upper surface of the mounting housing (3); and the positions of the sound alarm (601) and the sound-permeable hole (101) correspond to each other.

2. The electric vehicle battery pack replacement and installation abnormality alarm device according to claim 1, characterized in that: Mounting bolts (504) are provided at the positive and negative electrodes of the battery cell (501); an electrode indicator mark (502) is provided on the upper surface of the battery cell (501); a receiving groove (506) is provided on the outer side of the mounting bolt (504); the receiving groove (506) is adapted in size to the double-contact switch (503) and the single-contact switch (507).

3. The electric vehicle battery pack replacement and installation abnormality alarm device according to claim 2, characterized in that: A mounting connection assembly (4) is provided above the battery pack (5), the mounting connection assembly (4) comprising a conductive sheet (401) and a mounting nut (410), an indication channel (403) is provided in the middle of the conductive sheet (401), an indication light emitting diode (404) is fixedly connected in the indication channel (403), insulating contacts (405) are fixedly connected at the bottom of both ends of the conductive sheet (401), the insulating contacts (405) are adapted in size to the double contact switch (503) and the single contact switch (507), and a conductive extension tube (407) is fixedly connected to the upper part of the conductive sheet (401).

4. The electric vehicle battery pack replacement and installation abnormality alarm device according to claim 3, characterized in that: The mounting connection assembly (4) further comprises a limiting elastic strip (411), a gasket (409) is fixedly connected to the lower part of the mounting nut (410), an insulating member (408) is snap-connected to the inside of the conductive extension tube (407), a reinforcing sheet (406) is evenly fixedly connected to the circumference between the conductive extension tube (407) and the conductive sheet (401), a preset through hole (402) is provided on the conductive sheet (401), a limiting through hole (505) is provided on the mounting bolt (504), and the limiting elastic strip (411) passes through the limiting through hole (505).

5. The electric vehicle battery pack replacement and installation abnormality alarm device according to claim 4, characterized in that: The insulating member (408) comprises an insulating film (4081), a convex portion (4082) is provided on the upper portion of the insulating film (4081), and a tear hole (4083) is preset on the insulating film (4081) at a position corresponding to the convex portion (4082).

6. The electric vehicle battery pack replacement and installation abnormality alarm device according to claim 1, characterized in that: The sound alarm (601), the energy supply battery (602), the warning light (604), the double-contact switch (503), the single-contact switch (507), the pressure sensor (605) and the vibration sensor (606) are all electrically connected to the controller (603); the sound alarm (601), the controller (603), the warning light (604), the double-contact switch (503), the single-contact switch (507), the pressure sensor (605) and the vibration sensor (606) are all electrically connected to the energy supply battery (602).

7. The electric vehicle battery pack replacement and installation abnormality alarm device according to claim 1, characterized in that: The angle between the two contact parts of the double-contact switch (503) is one hundred and eighty degrees; a replacement status display screen (102) is provided on the upper part of the alarm housing (1); the replacement status display screen (102) is electrically connected to the controller (603) and the power supply battery (602); and the alarm light (604) is provided on the upper part of the mounting housing (3).

8. The electric vehicle battery pack replacement and installation abnormality alarm device according to claim 1, characterized in that: A pressure groove is provided at a position of the upper housing (2) corresponding to the pressure sensor (605), and a convex column for applying pressure is fixedly connected in the pressure groove.

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