Battery pack management device for replacing single storage batteries

Abstract

The battery pack management device comprises a cuboid shell, an upper cover is fixed to the upper end of the shell, a lower cover is fixed to the lower end of the shell, symmetrical double-open protective doors are rotationally connected to the rear end of the shell, and torsional springs are arranged at the rotational joints of the double-open protective doors and the shell; symmetrical dustproof nets are fixed to the front end of the shell, a cuboid cavity is formed in the shell, a clamping and positioning assembly and fixing clamps which are in sliding connection with the shell are arranged in the cavity, the fixing clamps comprise the positive electrode conductive clamp and the negative electrode conductive clamp, and the fixing clamps, the clamping and positioning assembly, the disassembling assembly and the positive and negative electrode distinguishing assembly are combined for work. When a storage battery needing to be maintained is disassembled, zero contact between an operator and a circuit in conductive communication is achieved, the danger that the operator gets an electric shock is prevented, and meanwhile the phenomenon that due to human body conduction, the voltage of a direct-current system fluctuates violently, transformer substation equipment is burnt out or protection action trips is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of audio playback, and in particular to a battery pack management device for replacing battery cells. Background Art

[0002] In the substation, as the last line of defense for the entire DC power system to provide power supply guarantee for the equipment network, the importance of the battery pack in the DC system of the substation is self-evident. If the battery is not properly maintained, it will bring potential risks to the safe and stable operation of the power grid. Because when the substation occupies the power supply and causes a power outage, it is very easy to cause a power grid accident. In order to ensure the safe and stable operation of the power grid, it is necessary to replace a single, multiple faulty batteries or the entire battery pack in the operating battery pack.

[0003] Chinese patent publication number CN117040058A discloses a device for replacing failed batteries in a substation DC system without power outage. The device includes: a jumper cable, a connector, a jumper circuit, a test circuit, a controller, and a jumper indicator light; the jumper cable is connected to a rectifier diode of the jumper circuit, and the rectifier diode is connected to a battery; the test circuit includes an analog-to-digital conversion chip; the controller is configured to: when the first terminal of the connector is connected to the positive electrode of the battery and the second terminal of the connector is connected to the negative electrode of the battery, detect the voltage of the analog-to-digital conversion chip, if the voltage is greater than a voltage threshold, mark the state of polarity connection as correct, and control the jumper indicator light to light up green; when the first terminal is connected to the negative electrode of the battery and the second terminal is connected to the positive electrode of the battery, detect the voltage of the analog-to-digital conversion chip, if the voltage is greater than the voltage threshold, mark the state of polarity connection as incorrect, and control the jumper indicator light to light up red, so as to solve the problem of inaccurate polarity judgment of the battery to be replaced.

[0004] The above solution may encounter the following problems during use:

[0005] 1. The jumper cable connects the rectifier diode, the anode of the rectifier diode is connected to the negative pole of the battery, and the cathode of the rectifier diode is connected to the positive pole of the battery. When connecting the rectifier diode and the battery, manual connection is required. The human body will be conductive, causing the risk of electric shock. At the same time, the conductivity of the human body will cause the DC system to be grounded, causing the DC system voltage to fluctuate violently, resulting in the burning of substation equipment or the tripping of protection action.

[0006] 2. When testing the positive and negative poles of the battery, the contact test is performed with the help of cables and battery terminals. Since the cables are too long, they are easily entangled with each other and are inconvenient to organize. At the same time, since the battery pack is large, when single batteries in different positions need maintenance, the above device needs to be moved back and forth. Since the device is too large, it is not easy to move. When there are many batteries that need to be maintained, moving the device back and forth will cause the operator's physical strength to drop rapidly, fatigue, and reduced energy, resulting in an increase in the number of cases where the positive and negative poles of the battery are connected in reverse. Summary of the invention

[0007] The object of the present invention is to provide a battery pack management device for replacing battery cells, which solves the above-mentioned problems in the prior art.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: A battery pack management device for replacing a battery cell, comprising a rectangular parallelepiped shell, an upper cover is fixed to the upper end of the shell, a lower cover is fixed to the lower end of the shell, a symmetrical double-opening protective door is rotatably connected to the rear end of the shell, a torsion spring is provided at the rotatable connection between the double-opening protective door and the shell, a symmetrical dustproof net is fixed to the front end of the shell, and a rectangular parallelepiped cavity is provided inside the shell;

[0009] The cavity is provided with a clamping positioning assembly and a fixing clamp which are slidably connected with the shell, the fixing clamp comprises a positive conductive clamp and a negative conductive clamp, the left end of the clamping positioning assembly is rotatably connected with the positive conductive clamp, the right end of the clamping positioning assembly is rotatably connected with the negative conductive clamp, the front ends of the positive conductive clamp and the negative conductive clamp are both provided with a wire drum which is rotatably connected with the lower cover, a crystal diode which is fixedly connected with the upper end of the lower cover is provided between the two wire drums, the crystal diode is respectively connected with the positive conductive clamp and the negative conductive clamp through cables, the crystal diode comprises an indicator light which is embedded in the upper end of the upper cover, and the front end of the clamping positioning assembly A positive and negative electrode discrimination component is provided which is slidably connected to the shell, a positive electrode detection column and a negative electrode detection column are fixed at the lower end of the positive and negative electrode discrimination component, the positive electrode detection column and the negative electrode detection column are symmetrically arranged, a symmetrical disassembly component is provided at the rear end of the clamping positioning component, the disassembly component is slidably connected to the shell, a symmetrical speaker is provided in the cavity, the speaker corresponds to the dustproof net and is fixed on the shell, a first light-emitting diode and a second light-emitting diode are embedded and fixed at the upper end of the upper cover, the first light-emitting diode and the second light-emitting diode are connected in parallel between the positive electrode detection column and the negative electrode detection column, and the speaker is connected in series with the second light-emitting diode;

[0010] The inner wall of the shell is mirror-imaged with first slide grooves on the left and right sides, and two first slide grooves are distributed up and down, and cylindrical fixing rods connected and fixed to the shell are provided between the first slide grooves.

[0011] Preferably, the clamping positioning assembly comprises a first compression spring, a connecting rod and a fixing plate, one end of the first compression spring is connected to the fixing plate, the other end of the first compression spring is connected to the shell, the connecting rod is provided with two and passes through the fixing plate, the left end of the fixing plate passes through the positive conductive clip and is inserted in the first slide groove, the right end of the fixing plate passes through the negative conductive clip and is inserted in the first slide groove, the upper end of the fixing plate is fixed with a U-shaped fixing frame, the upper end of the U-shaped fixing frame is fixed with a clamping fixing sliding key slidably connected to the upper cover, the upper end of the clamping fixing sliding key is slidably connected with a cylindrical release button, the lower end of the release button is fixed with a long plate, the upper end of the long plate is symmetrically provided with pulleys, one end of the second compression spring is fixed to the lower end of the long plate, the other end of the second compression spring is fixedly connected to the U-shaped fixing frame, the front end of the long plate is fixedly sleeved on the U-shaped frame on the U-shaped fixing frame, and the U-shaped frame is slidably connected to the U-shaped fixing frame.

[0012] Preferably, the positive conductive clip and the negative conductive clip are divided into two parts that are symmetrical in upper and lower directions, and the two parts of the positive conductive clip and the negative conductive clip are located on the upper and lower sides of the fixing rod, and the right ends of the two parts of the positive conductive clip and the left ends of the two parts of the negative conductive clip are fixed with spring bases, and tensioning springs are connected between the spring bases. The cables connecting the positive conductive clip and the negative conductive clip to the crystal diode are wound on a wire drum, and a torsion spring is provided between the wire drum and the lower cover, and the positive conductive clip is connected to the positive electrode of the crystal diode through a cable, and the negative conductive clip is connected to the negative electrode of the crystal diode through a cable.

[0013] Preferably, the positive and negative pole discrimination component includes an inverted Y-shaped fixing frame and a discrimination push rod, the discrimination push rod is fixed at the upper end of the Y-shaped fixing frame and is slidably connected to the upper cover, a connecting plate is fixed at the lower end of the Y-shaped fixing frame, one end of a third compression spring is fixed at the center of the connecting plate, and the other end of the third compression spring is fixedly connected to the outer shell.

[0014] Preferably, a positive electrode detection column and a negative electrode detection column are fixed on both sides of the front end of the connecting plate, and detection needles are provided at the front ends of the positive electrode detection column and the negative electrode detection column. The detection needle of the positive electrode detection column is connected to the positive electrode of the first light-emitting diode and the negative electrode of the second light-emitting diode through a cable, the positive electrode of the second light-emitting diode is electrically connected to the negative electrode of the speaker, and the detection needle of the negative electrode detection column is connected to the negative electrode of the first light-emitting diode and the positive electrode of the speaker.

[0015] Preferably, the disassembly assembly includes a protective shell and a disassembly screwdriver, an inverted Y-shaped frame is fixed to the upper end of the protective shell, a disassembly key slidably connected to the upper cover is fixed to the upper end of the Y-shaped frame, a second sliding groove is mirrored on the inner wall of the protective shell, a rotating rod is slidably connected between two of the second sliding grooves, and the disassembly screwdriver passes through the rotating rod and is rotatably connected to the rotating rod.

[0016] Preferably, the disassembly screwdriver comprises a cone body, a non-slip handle is fixed to the front end of the cone body, a hexagonal disassembly head is fixed to the rear end of the cone body, a suction cup is fixed inside the disassembly head, and a rubber column is fixed inside the suction cup.

[0017] Preferably, two rows of mirror-image positioning teeth are fixed to the lower end of the upper cover, and the positioning teeth correspond to the pulleys of the clamped positioning assembly.

[0018] Preferably, the upper end of the upper cover is provided with elongated sliding grooves corresponding to the clamping fixed sliding key, the disassembly key and the discrimination push rod, and the sliding grooves are provided with bellows, one end of the bellows is connected to the corresponding clamping fixed sliding key, the disassembly key and the discrimination push rod, and the other end of the bellows is connected to the corresponding sliding groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the combined work of the fixing clamp, the clamping positioning assembly, the disassembly assembly and the positive and negative pole identification assembly, when the battery that needs maintenance is disassembled, the operator can achieve zero contact with the conductive circuit, preventing the operator from being electrocuted, and at the same time preventing the DC system voltage from fluctuating violently due to human body conduction, which may lead to the burning of substation equipment or tripping of protection action.

[0021] 2. By modularizing the fixing clamp, clamping positioning assembly, disassembly assembly and positive and negative electrode identification assembly of the device, the size of the device is greatly reduced, which is convenient to carry and can be quickly moved when maintaining batteries in different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the interior of the housing of the present invention;

[0024] Figure 3 It is a schematic diagram of the shell structure of the present invention;

[0025] Figure 4 It is an overall schematic diagram of the clamping positioning assembly of the present invention;

[0026] Figure 5 It is an overall schematic diagram of the fixing clamp and the clamping and positioning assembly of the present invention;

[0027] Figure 6 It is an enlarged schematic diagram of point A of the present invention;

[0028] Figure 7 This is an overall schematic diagram of the positive and negative electrode discrimination component of the present invention;

[0029] Figure 8 It is an overall schematic diagram of the disassembly assembly of the present invention;

[0030] Fig. 9 It is an overall schematic diagram of the disassembly screwdriver of the present invention;

[0031] Fig.10 It is an overall cross-sectional schematic diagram of the present invention.

[0032] Explanation of the markings in the figure: 1. Shell; 2. Fixing clip; 3. Positioning tooth; 4. Positive detection column; 5. Negative detection column; 6. Wire drum; 7. Clamping and positioning assembly; 8. Disassembly assembly; 9. Speaker; 10. Crystal diode; 11. Positive and negative pole discrimination assembly; 101. Upper cover; 102. Lower cover; 103. Double-opening protective door; 104. Dustproof net; 105. First slide; 106. Fixing rod; 201. Positive conductive clip; 202. Negative conductive clip; 203. Spring base; 204. Tension spring; 401. First light-emitting diode; 501. Second light-emitting diode; 701. First compression spring Spring; 702, connecting rod; 703, fixing plate; 704, U-shaped fixing frame; 705, clamped fixed sliding key; 706, release button; 707, long board; 708, pulley; 709, second compression spring; 801, protective shell; 802, Y-shaped frame; 803, disassembly key; 804, second slide groove; 805, rotating rod; 806, disassembly screwdriver; 8061, cone body; 8062, non-slip handle; 8063, disassembly head; 8064, suction cup; 8065, rubber column; 1001, indicator light; 1101, Y-shaped fixing frame; 1102, identification push rod; 1103, third compression spring. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1 , a battery pack management device for replacing battery cells, comprising a rectangular shell 1, an upper cover 101 is fixed on the upper end of the shell 1, a lower cover 102 is fixed on the lower end of the shell 1, and a symmetrical double-opening protective door 103 is rotatably connected to the rear end of the shell 1, and a torsion spring is provided at the rotation connection between the double-opening protective door 103 and the shell 1. By setting the double-opening protective door 103 to be double-opened in an upper and lower part, it is convenient for the fixing clamp 2 to be smoothly extended or retracted from the inside of the shell 1, and the double-opening protective door 103 is prevented from being stuck when the fixing clamp 2 is extended or retracted. The double-opening protective door 103 has a dust-proof and moisture-proof effect on the inside of the shell 1, preventing dust and moisture from entering the inside of the shell 1 and causing damage to the components. At the same time, the double-opening protective door 103 and the fixing clamp 2 are connected by a torsion spring, so that the double-opening protective door 103 can be automatically closed when the fixing clamp 2 is retracted. The front end of the shell 1 is fixed with a symmetrical The dustproof net 104 is provided with a rectangular cavity inside the shell 1. The shell 1 is set as a rectangular parallelepiped, so that the utilization space of the device is larger, the device as a whole becomes smaller and more convenient to carry, and it is convenient to work in a smaller space between battery layers, while ensuring the aesthetic appearance of the device. The upper end of the upper cover 101 is respectively provided with a long strip of sliding grooves corresponding to the clamping fixed sliding key 705, the disassembly key 803 and the judgment push rod 1102, and the sliding grooves are provided with bellows. One end of the bellows is connected to the corresponding clamping fixed sliding key 705, the disassembly key 803 and the judgment push rod 1102, and the other end of the bellows is connected to the corresponding sliding groove. By installing the bellows in the sliding groove, dust is prevented from entering the interior of the shell 1 when the clamping fixed sliding key 705, the disassembly key 803 and the judgment push rod 1102 are pushed to move, and water is prevented from entering the interior of the shell 1 to damage the components.

[0037] See also Figure 2 and Figure 3The inner wall of the shell 1 is mirror-imaged with first slide grooves 105 on the left and right sides, and two of the first slide grooves 105 are distributed up and down. A cylindrical fixing rod 106 connected and fixed to the shell 1 is provided between the first slide grooves 105. A clamping positioning component 7 and a fixing clip 2 which are slidably connected to the shell 1 are provided in the cavity. The fixing clip 2 includes a positive conductive clip 201 and a negative conductive clip 202. The left end of the clamping positioning component 7 is rotatably connected to the positive conductive clip 201, and the right end of the clamping positioning component 7 is rotatably connected to the negative conductive clip 202. The clamping positioning component 7 is pushed to drive the fixing clip 2 to extend. At the same time, the fixing rod 106 is located in the center of the positive conductive clip 201 and the negative conductive clip 202, so that the fixing clip 2 is extended. At the same time, they are opened to facilitate fixing the wires or conductive plates at the interconnected places of the storage batteries, and at the same time, the clamping and positioning component 7 is used to achieve positioning to prevent the clamping and positioning component 7 from being pushed all the time when the fixing clip 2 fixes the wires or conductive plates at the interconnected places of the storage batteries. The front ends of the positive conductive clip 201 and the negative conductive clip 202 are both provided with a wire drum 6 rotatably connected to the lower cover 102, and the cables connecting the positive conductive clip 201 and the negative conductive clip 202 and the crystal diode 10 are wound through the wire drum 6 to achieve the retraction and release of the cables, and to prevent the cables from being entangled with each other inside the housing 1. A crystal diode 10 fixedly connected to the upper end of the lower cover 102 is provided between the two wire drums 6, and the crystal diode 10 is respectively connected to the positive conductive clip 201 through cables. The crystal diode 10 includes an indicator light 1001, which is embedded in the upper end of the upper cover 101. The crystal diode 10 is connected to the positive conductive clip 201 and the negative conductive clip 202 through a cable, so that a single battery in the battery pack can be maintained without power failure. At the same time, in the case of reverse connection of the electrodes, the crystal diode 10 is cut off due to the reverse pressure, and there will be no additional discharge current, so that the discharge circuit of the battery pack remains connected and unobstructed, ensuring the power supply of the battery pack to the load and reducing the occurrence of instantaneous power failure. At the same time, the indicator light 1001 lights up to indicate that the line connection is correct, so that the operator can quickly determine whether the positive and negative poles of the line are connected correctly. The clamping positioning component The front end of 7 is provided with a positive and negative electrode discrimination component 11 which is slidably connected to the shell 1, and the lower end of the positive and negative electrode discrimination component 11 is fixed with a positive electrode detection column 4 and a negative electrode detection column 5, and the positive electrode detection column 4 and the negative electrode detection column 5 are symmetrically arranged. By pushing out the positive and negative electrode discrimination component 11, the positive electrode detection column 4 and the negative electrode detection column 5 are driven to extend, so as to facilitate the positive and negative electrode discrimination of the batteries in the battery pack and the new batteries replaced, and prevent the reverse connection of the electrodes to cause a short circuit, which may cause the DC system to be grounded, and may cause a sharp fluctuation in the DC system voltage, resulting in the burning of the substation equipment or the tripping of the protection action. The rear end of the clamping positioning component 7 is provided with a symmetrical disassembly component 8, and the disassembly component 8 is slidably connected to the shell 1, and the disassembly component 8 is pushed out from the inside of the shell 1.The bolts fixing the wires or conductive plates on the battery are removed to achieve zero contact between the operator and the power circuit of the battery pack, preventing the risk of electric shock. The cavity is provided with a symmetrical speaker 9, which corresponds to the dustproof net 104 and is fixed on the housing 1. The upper end of the upper cover 101 is embedded with a first light-emitting diode 401 and a second light-emitting diode 501, which are connected in parallel between the positive detection column 4 and the negative detection column 5. The speaker 9 is connected in series with the second light-emitting diode 501, and the positive and negative poles of the battery are judged by the first light-emitting diode 401 and the second light-emitting diode 501 to prevent the reverse connection of the positive and negative poles. At the same time, the speaker 9 is used to remind the operator that the electrodes are connected in reverse, so that the operator can quickly distinguish the positive and negative poles of the battery.

[0038] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig.10The clamping and positioning assembly 7 includes a first compression spring 701, a connecting rod 702 and a fixing plate 703. One end of the first compression spring 701 is connected to the fixing plate 703, and the other end of the first compression spring 701 is connected to the housing 1. The first compression spring 701 is compressed in the process of pushing the clamping and positioning assembly 7 to move, so that when the fixing clip 2 places the fixed wire or the conductive plate on the battery in the center, the first compression spring 701 pushes the clamping and positioning assembly 7 to move in the opposite direction, so that the fixing clip 2 fixes the fixed wire or the conductive plate on the battery. The connecting rod 702 is provided with two and passes through the fixing plate 703. The left end of the fixing plate 703 passes through the positive conductive clip 201. The fixing plate 703 is inserted into the first slide groove 105. The right end of the fixing plate 703 passes through the negative conductive clip 202 and is inserted into the first slide groove 105. The positive conductive clip 201 and the negative conductive clip 202 are connected by the fixing plate 703 and the connecting rod 702, so that the positive conductive clip 201 and the negative conductive clip 202 are driven to extend synchronously when the clamping positioning assembly 7 is pushed. A U-shaped fixing frame 704 is fixed to the upper end of the fixing plate 703. A clamping fixing sliding key 705 slidably connected to the upper cover 101 is fixed to the upper end of the U-shaped fixing frame 704. A cylindrical release button 706 is slidably connected to the upper end of the clamping fixing sliding key 705. The lower end of the release button 706 is A long plate 707 is fixed at the end, and a pulley 708 is symmetrically arranged on the upper end of the long plate 707. One end of a second compression spring 709 is fixed to the lower end of the long plate 707, and the other end of the second compression spring 709 is fixedly connected to the U-shaped fixing frame 704. Two rows of mirror-image positioning teeth 3 are fixed to the lower end of the upper cover 101, and the positioning teeth 3 correspond to the pulley 708 of the clamping positioning component 7. The second compression spring 709 pushes the long plate 707 to move upward, so that the pulley 708 and the positioning tooth 3 are engaged and limited, preventing the first compression spring 701 from pushing the clamping positioning component 7 to move in the opposite direction. When the release button 706 is pressed, the release button 706 drives the long plate 707 to press down. The second compression spring 709 is compressed, thereby driving the pulley 708 away from the positioning tooth 3 to release the limit of the clamping positioning component 7, and then the first compression spring 701 pushes the clamping positioning component 7 to move in the opposite direction, thereby driving the positive conductive clip 201 and the negative conductive clip 202 to be retracted into the interior of the shell 1, and the front end of the long plate 707 is fixedly sleeved on the U-shaped frame on the U-shaped fixing frame 704, and the U-shaped frame is slidably connected to the U-shaped fixing frame 704. The long plate 707 is slidably connected to the U-shaped fixing frame 704 through the U-shaped frame, preventing the second compression spring 709 from tilting when compressed, thereby causing the second compression spring 709 to pop out from between the long plate 707 and the U-shaped fixing frame 704.

[0039] See also Figure 5The positive electrode conductive clip 201 and the negative electrode conductive clip 202 are divided into two symmetrical parts, and the two parts of the positive electrode conductive clip 201 and the negative electrode conductive clip 202 are located at the upper and lower sides of the fixing rod 106. The fixing rod 106 is placed between the two parts of the positive electrode conductive clip 201 and the negative electrode conductive clip 202, which is conducive to forming an obstruction effect on the positive electrode conductive clip 201 and the negative electrode conductive clip 202 during the movement process, so that the two parts of the positive electrode conductive clip 201 and the negative electrode conductive clip 202 are opened, and it is convenient to place the fixed wire or conductive plate on the battery between the positive electrode conductive clip 201 and the negative electrode conductive clip The spring base 203 is fixed to the right end of the two parts of the positive conductive clip 201 and the left end of the two parts of the negative conductive clip 202, and the spring bases 203 are connected to each other. By installing the spring bases 203 on the opposite sides of the positive conductive clip 201 and the negative conductive clip 202 and connecting the spring bases 203 through the tensioning spring 204, it is beneficial for the tensioning spring 204 to be stretched to generate elastic force when the positive conductive clip 201 and the negative conductive clip 202 are opened, so that when the clamping positioning assembly 7 is released, the tensioning spring 204 is restored to pull the positive conductive clip 201 to move the positive conductive clip 201 and the negative conductive clip 202 to move the positive conductive clip 201 to move ... positive conductive clip 201 to move the negative conductive clip 202 to move the positive conductive clip 201 to move the positive conductive clip 201 to move the negative conductive clip 202 to move the positive conductive clip 2 The two parts of the positive conductive clip 201 and the negative conductive clip 202 are clamped to the fixed wire or conductive plate on the battery, ensuring that the positive conductive clip 201 and the negative conductive clip 202 are connected and fixed to the fixed wire or conductive plate on the battery. The cable connecting the positive conductive clip 201 and the negative conductive clip 202 and the crystal diode 10 is wound on the wire drum 6. A torsion spring is provided between the wire drum 6 and the lower cover 102. By winding the cable on the wire drum 6, when the positive conductive clip 201 and the negative conductive clip 202 are extended or retracted, the wire drum 6 releases and retracts the cable, preventing the cables from being entangled with each other inside the housing 1. The positive electrode conductive clip 201 is connected to the positive electrode of the crystal diode 10 through a cable, and the negative electrode conductive clip 202 is connected to the negative electrode of the crystal diode 10 through a cable. The positive electrode of the crystal diode 10 is connected to the positive electrode conductive clip 201, and the negative electrode of the crystal diode 10 is connected to the negative electrode conductive clip 202, thereby maintaining a single battery in the battery pack without power outage. In the event of reverse connection of the electrodes, the crystal diode 10 will cut off the current flow, and there will be no additional discharge current, so that the discharge circuit of the battery pack remains connected and unobstructed, ensuring the power supply of the battery pack to the load and reducing the occurrence of instantaneous power outages.

[0040] See also Figure 1 and Figure 7The positive and negative electrode discrimination component 11 includes an inverted Y-shaped fixing frame 1101 and a discrimination push rod 1102. The discrimination push rod 1102 is fixed to the upper end of the Y-shaped fixing frame 1101 and is slidably connected to the upper cover 101. A connecting plate is fixed to the lower end of the Y-shaped fixing frame 1101. One end of a third compression spring 1103 is fixed to the center of the connecting plate. The other end of the third compression spring 1103 is fixedly connected to the housing 1. The positive electrode detection column 4 and the negative electrode detection column 5 are fixed to both sides of the front end of the connecting plate to push the discrimination push rod 1102. 2 slides, drives the connecting plate and the positive electrode detection column 4 and the negative electrode detection column 5 to extend through the Y-shaped fixing frame 1101, and contacts the replaced battery terminal through the positive electrode detection column 4 and the negative electrode detection column 5 to judge the positive and negative terminal posts, and at the same time, when the judging push rod 1102 is pushed, the third compression spring 1103 is compressed, and when the thrust on the judging push rod 1102 is removed, the third compression spring 1103 is restored to drive the positive electrode detection column 4 and the negative electrode detection column 5 to retract, thereby achieving the effect of automatic retraction, and the positive electrode detection column 4 and the negative electrode detection column 5 are automatically retracted. The front end of the detection column 5 is provided with a detection needle. The detection needle of the positive detection column 4 is connected to the positive electrode of the first light-emitting diode 401 and the negative electrode of the second light-emitting diode 501 through a cable. The positive electrode of the second light-emitting diode 501 is electrically connected to the negative electrode of the speaker 9. The detection needle of the negative detection column 5 is connected to the negative electrode of the first light-emitting diode 401 and the positive electrode of the speaker 9. When the positive detection column 4 contacts the positive electrode terminal of the battery and the negative detection column 5 contacts the negative electrode terminal of the battery, the first light-emitting diode 401 emits a signal. Green light indicates that it corresponds to the markings on the positive and negative poles of the positive detection column 4 and the negative detection column 5. At this time, the second light-emitting diode 501 is cut off so that the current cannot pass through the second light-emitting diode 501. When the negative detection column 5 contacts the positive terminal of the battery and the positive detection column 4 contacts the negative terminal of the battery, the second light-emitting diode 501 is turned on and emits red light. At the same time, the speaker 9 is powered on to alarm, reminding the operator that the positive and negative poles are connected reversely. At this time, the first light-emitting diode 401 cuts off the current, and the current cannot flow through the first light-emitting diode 401.

[0041] See also Figure 8 and Fig. 9The disassembly assembly 8 includes a protective shell 801 and a disassembly screwdriver 806. An inverted Y-shaped frame 802 is fixed on the upper end of the protective shell 801. A disassembly key 803 slidably connected to the upper cover 101 is fixed on the upper end of the Y-shaped frame 802. The disassembly key 803 is pushed to push out the protective shell 801 and the disassembly screwdriver 806, so that the bolts fixing the wires or the conductive plates on the battery can be disassembled by the disassembly screwdriver 806, so that the operator can have zero contact with the power supply line of the battery pack to prevent the risk of electric shock. At the same time, it prevents the DC system from being grounded through the human body, which may cause the DC system voltage to fluctuate violently, resulting in the burning of the substation equipment or the tripping of the protection action. The inner wall of the protective shell 801 is mirrored with a second slide groove 804, and a rotating rod 805 is slidably connected between the two second slide grooves 804. The protective shell 801 and the disassembly screwdriver 806 are slidably connected through the second slide groove 804 and the rotating rod 805. , the storage of the disassembly screwdriver 806 is realized, the use area of ​​the space is reduced, and the device can be designed to be smaller. The disassembly screwdriver 806 passes through the rotating rod 805 and is rotatably connected to the rotating rod 805. The disassembly screwdriver 806 includes a cone body 8061, a non-slip handle 8062 is fixed to the front end of the cone body 8061, and a hexagonal disassembly head 8063 is fixed to the rear end of the cone body 8061. A suction cup 8064 is fixed inside the disassembly head 8063, and a rubber column 8065 is fixed inside the suction cup 8064. The bolts fixing the wires or the conductive plates on the battery are clamped by the disassembly head 8063 to realize the disassembly of the bolts. The rubber column 8065 is used to absorb the bolts to prevent the bolts from detaching from the disassembly head 8063 of the disassembly screwdriver 806 after the disassembly is completed. At the same time, the suction cup 8064 blocks the through hole on the bolt, further ensuring the absorption effect of the rubber column 8065 on the bolt.

[0042] The use process of the present invention:

[0043] First, push the identification push rod 1102 to slide, the Y-shaped fixing frame 1101 drives the connecting plate and the positive detection column 4 and the negative detection column 5 to extend, and make the detection needles of the positive detection column 4 and the negative detection column 5 contact with the new battery terminal to judge the positive and negative terminal posts, and at the same time, the third compression spring 1103 is compressed while pushing the identification push rod 1102. When the positive detection column 4 contacts with the positive terminal post of the battery and the negative detection column 5 contacts with the negative terminal post of the battery, the first light-emitting diode 401 emits green light, indicating that it corresponds to the markings on the positive and negative poles of the positive detection column 4 and the negative detection column 5. At this time, the second light-emitting diode 401 emits green light. The diode 501 is cut off so that the current cannot pass through the second light-emitting diode 501. When the negative electrode detection column 5 contacts the positive electrode terminal of the battery, and the positive electrode detection column 4 contacts the negative electrode terminal of the battery, the second light-emitting diode 501 is turned on and emits red light. At the same time, the speaker 9 is powered on to alarm, reminding the operator that the positive and negative electrodes are connected in reverse. At this time, the first light-emitting diode 401 cuts off the current, and the current cannot flow through the first light-emitting diode 401. At this time, the positive and negative electrodes of the new battery are judged. When the thrust on the judgment push rod 1102 is removed, the third compression spring 1103 is restored to drive the positive electrode detection column 4 and the negative electrode detection column 5 to retract, thereby achieving the effect of automatic retraction;

[0044] Then, the clamping and positioning component 7 is pushed to make the positive conductive clip 201 and the negative conductive clip 202 of the fixing clip 2 extend synchronously. In the process of moving the clamping and positioning component 7, the first compression spring 701 is compressed, and the second compression spring 709 moves upward against the long plate 707. In the process of moving the clamping and positioning component 7, the pulley 708 and the positioning tooth 3 are engaged and limited. In the process of moving the clamping and positioning component 7, the two parts of the positive conductive clip 201 and the negative conductive clip 202 are opened due to the obstruction of the fixing rod 106. When the positive conductive clip 201 and the negative conductive clip 202 are opened, the tensioning spring 204 is stretched to generate elastic force, and the interconnected wires or conductive plates on the battery are placed between the two parts of the positive conductive clip 201 and the negative conductive clip 202. The positive conductive clip 201 clamps and fixes the wire or conductive plate on the positive side of the battery that needs maintenance, and the negative conductive clip 202 clamps and fixes the wire or conductive plate on the positive side of the battery that needs maintenance. The wire or conductive plate on the negative pole side of the battery is connected, and the release button 706 is pressed to release the engagement between the pulley 708 and the positioning tooth 3. Then the first compression spring 701 pushes the clamping positioning assembly 7 to move in the opposite direction. At the same time, the fixing rod 106 no longer forms an obstruction to the positive conductive clip 201 and the negative conductive clip 202. The tensioning spring 204 is tightened to make the positive conductive clip 201 and the negative conductive clip 202 clamp the corresponding wire or wire plate. At this time, the positive pole of the crystal diode 10 is connected to the positive conductive clip 201, and the negative pole of the crystal diode 10 is connected to the negative conductive clip 202, ensuring that a single battery in the battery pack is maintained without power failure. In the case of reverse connection of the electrodes, the crystal diode 10 will cut off the current flow, and there will be no additional discharge current, so that the discharge circuit of the battery pack remains connected and unobstructed, ensuring the power supply of the battery pack to the load and reducing the occurrence of instantaneous power failure.

[0045] Next, push the disassembly key 803 to make the protective shell 801 and the disassembly screwdriver 806 extend from the inside of the housing 1, slide the disassembly screwdriver 806 out to make it in a vertical state, put the disassembly head 8063 on the nut of the battery terminal that needs maintenance, and then twist the anti-slip handle 8062 to remove the nut. At this time, the current in the circuit flows through the positive conductive clip 201, the negative conductive clip 202 and the crystal diode 10 to ensure that the circuit can normally supply power to the load. After the disassembly is completed, remove the battery that needs maintenance, and place a new battery in the position of the removed battery for maintenance according to the correct positive and negative poles, and then fix the nut on the terminal of the new battery by twisting the anti-slip handle 8062;

[0046] Finally, push the clamping and positioning assembly 7 to make the positive conductive clip 201 and the negative conductive clip 202 of the fixing clip 2 move synchronously. During the movement of the clamping and positioning assembly 7, the first compression spring 701 is compressed. The two parts of the positive conductive clip 201 and the negative conductive clip 202 are opened away from the wires or conductive plates connected to each other by the fixing rod 106. At this time, the current flows from the new battery. After removing the device, press the release button 706. The first compression spring 701 pushes the clamping and positioning assembly 7 to retract, thereby driving the fixing clip 2 to retract into the interior of the housing 1. The protective shell 801 and the disassembly screwdriver 806 can be retracted into the interior of the housing 1 through the disassembly key 803.

[0047] 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. A battery pack management device for replacing battery cells, characterized in that: The invention comprises a rectangular parallelepiped housing (1), an upper cover (101) being fixed to the upper end of the housing (1), a lower cover (102) being fixed to the lower end of the housing (1), a symmetrical double-opening protective door (103) being rotatably connected to the rear end of the housing (1), a torsion spring being provided at the rotatable connection between the double-opening protective door (103) and the housing (1), a symmetrical dustproof net (104) being fixed to the front end of the housing (1), and a rectangular parallelepiped cavity being provided inside the housing (1); The cavity is provided with a clamping positioning component (7) and a fixing clip (2) which are slidably connected to the housing (1); the fixing clip (2) comprises a positive conductive clip (201) and a negative conductive clip (202); the left end of the clamping positioning component (7) is rotatably connected to the positive conductive clip (201); the right end of the clamping positioning component (7) is rotatably connected to the negative conductive clip (202); the front ends of the positive conductive clip (201) and the negative conductive clip (202) are both provided with a wire reel (6) rotatably connected to the lower cover (102); a crystal diode (10) fixedly connected to the upper end of the lower cover (102) is provided between the two wire reels (6); the crystal diode (10) is respectively connected to the positive conductive clip (201) and the negative conductive clip (202) via cables; the crystal diode (10) comprises an indicator light (1001); the indicator light (1001) is embedded in the upper end of the upper cover (101); the clamping positioning component (7) is rotatably connected to the positive conductive clip (201) and the negative conductive clip (202); The front end of the positioning component (7) is provided with a positive and negative electrode discrimination component (11) which is slidably connected to the outer shell (1); the lower end of the positive and negative electrode discrimination component (11) is fixed with a positive electrode detection column (4) and a negative electrode detection column (5); the positive electrode detection column (4) and the negative electrode detection column (5) are symmetrically arranged; the rear end of the clamping positioning component (7) is provided with a symmetrical disassembly component (8); the disassembly component (8) is slidably connected to the outer shell (1); the cavity is provided with a symmetrical speaker (9); the speaker (9) corresponds to the dustproof net (104) and is fixed on the outer shell (1); the upper end of the upper cover (101) is embedded with a first light-emitting diode (401) and a second light-emitting diode (501); the first light-emitting diode (401) and the second light-emitting diode (501) are connected in parallel between the positive electrode detection column (4) and the negative electrode detection column (5); the speaker (9) is connected in series with the second light-emitting diode (501); The inner wall of the shell (1) is mirror-imaged with first slide grooves (105) on the left and right sides, and two first slide grooves (105) are distributed vertically, and a cylindrical fixing rod (106) connected and fixed to the shell (1) is provided between the first slide grooves (105).

2. A battery pack management device for replacing battery cells according to claim 1, characterized in that: The clamping positioning assembly (7) comprises a first compression spring (701), a connecting rod (702) and a fixing plate (703), one end of the first compression spring (701) is connected to the fixing plate (703), the other end of the first compression spring (701) is connected to the housing (1), two connecting rods (702) are provided and pass through the fixing plate (703), the left end of the fixing plate (703) passes through the positive electrode conductive clip (201) and is inserted into the first slide groove (105), the right end of the fixing plate (703) passes through the negative electrode conductive clip (202) and is inserted into the first slide groove (105), the upper end of the fixing plate (703) is fixed with a U-shaped fixing frame (704), and the U-shaped fixing frame (704) is fixed to the upper end of the fixing plate (703). 04) is fixed with a clamp-mounted fixed sliding key (705) slidably connected to the upper cover (101), the upper end of the clamp-mounted fixed sliding key (705) is slidably connected with a cylindrical release button (706), the lower end of the release button (706) is fixed with a long plate (707), the upper end of the long plate (707) is symmetrically provided with pulleys (708), the lower end of the long plate (707) is fixed with one end of a second compression spring (709), the other end of the second compression spring (709) is fixedly connected to the U-shaped fixing frame (704), the front end of the long plate (707) is fixedly sleeved on a U-shaped frame on the U-shaped fixing frame (704), and the U-shaped frame is slidably connected to the U-shaped fixing frame (704).

3. The battery pack management device for replacing battery cells according to claim 1, characterized in that: The positive electrode conductive clip (201) and the negative electrode conductive clip (202) are both divided into two parts that are symmetrical in upper and lower directions. The two parts of the positive electrode conductive clip (201) and the negative electrode conductive clip (202) are both located at the upper and lower sides of the fixing rod (106). The right ends of the two parts of the positive electrode conductive clip (201) and the left ends of the two parts of the negative electrode conductive clip (202) are both fixed with spring bases (203). A tensioning spring (204) is connected between the spring bases (203). The cables connecting the positive electrode conductive clip (201) and the negative electrode conductive clip (202) to the crystal diode (10) are wound on a wire reel (6). A torsion spring is provided between the wire reel (6) and the lower cover (102). The positive electrode conductive clip (201) is connected to the positive electrode of the crystal diode (10) through the cable, and the negative electrode conductive clip (202) is connected to the negative electrode of the crystal diode (10) through the cable.

4. The battery pack management device for replacing battery cells according to claim 1, characterized in that: The positive and negative electrode discrimination component (11) comprises an inverted Y-shaped fixing frame (1101) and a discrimination push rod (1102), wherein the discrimination push rod (1102) is fixed to the upper end of the Y-shaped fixing frame (1101) and is slidably connected to the upper cover (101), and a connecting plate is fixed to the lower end of the Y-shaped fixing frame (1101), and one end of a third compression spring (1103) is fixed to the center of the connecting plate, and the other end of the third compression spring (1103) is fixedly connected to the housing (1).

5. The battery pack management device for replacing battery cells according to claim 1, characterized in that: A positive electrode detection column (4) and a negative electrode detection column (5) are fixed on both sides of the front end of the connecting plate. The front ends of the positive electrode detection column (4) and the negative electrode detection column (5) are both provided with detection needles. The detection needle of the positive electrode detection column (4) is connected to the positive electrode of the first light-emitting diode (401) and the negative electrode of the second light-emitting diode (501) through a cable. The positive electrode of the second light-emitting diode (501) is electrically connected to the negative electrode of the speaker (9). The detection needle of the negative electrode detection column (5) is connected to the negative electrode of the first light-emitting diode (401) and the positive electrode of the speaker (9).

6. The battery pack management device for replacing battery cells according to claim 1, characterized in that: The disassembly assembly (8) comprises a protective shell (801) and a disassembly screwdriver (806); an inverted Y-shaped frame (802) is fixed to the upper end of the protective shell (801); a disassembly key (803) slidably connected to the upper cover (101) is fixed to the upper end of the Y-shaped frame (802); a second sliding groove (804) is mirror-imaged on the inner wall of the protective shell (801); a rotating rod (805) is slidably connected between two of the second sliding grooves (804); and the disassembly screwdriver (806) passes through the rotating rod (805) and is rotatably connected to the rotating rod (805).

7. The battery pack management device for replacing battery cells according to claim 6, characterized in that: The disassembly screwdriver (806) comprises a cone body (8061), a non-slip handle (8062) is fixed to the front end of the cone body (8061), a hexagonal disassembly head (8063) is fixed to the rear end of the cone body (8061), a suction cup (8064) is fixed inside the disassembly head (8063), and a rubber column (8065) ​​is fixed inside the suction cup (8064).

8. The battery pack management device for replacing battery cells according to claim 1, characterized in that: Two rows of mirror-image positioning teeth (3) are fixed to the lower end of the upper cover (101), and the positioning teeth (3) correspond to the pulleys (708) of the clamping positioning assembly (7).

9. A battery pack management device for replacing battery cells according to claims 1-8, characterized in that: The upper end of the upper cover (101) is provided with long strip sliding grooves corresponding to the clamping fixed sliding key (705), the disassembly key (803) and the identification push rod (1102), and the sliding grooves are provided with bellows. One end of the bellows is connected to the corresponding clamping fixed sliding key (705), the disassembly key (803) and the identification push rod (1102), and the other end of the bellows is connected to the corresponding sliding groove.

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