Intelligent battery electric quantity calculation instrument for electric vehicle

Abstract

The invention discloses an electric vehicle intelligent battery electric quantity calculation instrument, which comprises an instrument display, a battery pack, a clamp holder, a transverse guider and a dynamic battery internal resistance test assembly, and is characterized in that the instrument display comprises an instrument panel body, and a speed display screen, an electric quantity display screen and a remaining service life display screen which are mounted on the instrument panel body; the battery packs are divided into a plurality of groups and are mounted in the electric vehicle body frame, the plurality of groups of battery packs form a battery pack, the two groups of clamping devices are symmetrically mounted at the two ends of the battery pack, and the outer ends of the two groups of clamping devices are connected with the two groups of transverse guiders; and the two groups of dynamic battery internal resistance testing assemblies are respectively arranged on the two groups of transverse guiders and are connected with an internal resistance tester through lines. According to the designed battery electric quantity calculation instrument, the purpose of dynamically detecting the remaining service life of the battery can be achieved, and the functionality of the battery electric quantity calculation instrument is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicles, in particular to an intelligent battery power calculation instrument for electric vehicles. Background Art

[0002] Electric vehicles are pure electric vehicles powered by batteries (batteries) and driven by motors (DC, AC, series excitation, external excitation). In recent years, they have been widely used in my country. Domestic battery vehicles are mainly used for sightseeing, security patrols, and cargo transportation. The main purpose of electric sightseeing vehicles is to carry passengers in parks, scenic spots, leisure resorts, universities, hospitals, golf courses, real estate companies, etc. The main purpose of electric patrol vehicles is to patrol security in stations and crowded places. The main purpose of electric transport vehicles is in factories, ports, logistics warehouses, etc. The main purpose of electric sanitation vehicles is to clean up sites, wash roads, transport garbage, etc. Electric vehicles are usually equipped with a power meter to display power and speed.

[0003] However, the existing electric vehicle battery power meter has the following problems during use: the existing electric vehicle battery power meter is mainly used to display the remaining battery power, but lacks means for detecting the remaining battery life. The battery life detection method is mainly carried out by special vehicle repair shops using special instruments for detection and processing. There is a lack of intuitive perception of whether the battery needs to be replaced, and the degree of intelligence is insufficient. Therefore, it is necessary to design corresponding technical solutions to solve the existing technical problems. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent battery power calculation meter for electric vehicles, which solves the technical problem that the existing battery power instrument panel of electric vehicles is mainly used to display the remaining battery power, but lacks means for detecting the remaining battery service life. The battery life detection method is mainly carried out by special vehicle repair shops using special instruments for detection and processing. There is a lack of intuitive perception of whether the battery needs to be replaced, and the degree of intelligence is insufficient.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent battery power calculation meter for electric vehicles, comprising an instrument display, a battery pack, a clamp, a lateral guide and a dynamic battery internal resistance test assembly, wherein the instrument display comprises an instrument panel body and a speed display screen, a power display screen and a remaining service life display screen installed on the instrument panel body, the battery pack is divided into several groups and installed in the body frame of the electric vehicle, and several groups of the battery packs form a battery pack, the clamp is divided into two groups and symmetrically installed at both ends of the battery pack, the outer ends of the two groups of the clamps are connected to the two groups of lateral guides, the dynamic battery internal resistance test assembly is divided into two groups and respectively installed on the two groups of lateral guides, the two groups of the dynamic battery internal resistance test assemblies are connected to an internal resistance tester through a line, and the internal resistance tester is installed below the remaining service life display screen;

[0006] The clamp includes a suction cup, a winding rod, a traction rope and a positioning bolt, the suction cup is adhered to the end of the battery pack, the winding rod is rotatably arranged in the suction cup, the traction rope is divided into two groups, the outer ends of the two groups of traction ropes are connected to the transverse guide and the inner ends are connected to the winding rod, the positioning bolt is threadedly inserted into the suction cup and the inner end thereof is in conflict with the winding rod;

[0007] The transverse guide comprises a transverse plate, a motor 1, a screw and a slider, the surface of the transverse plate is processed to form a slide groove, the motor 1 is installed at the front end of the transverse plate and the power output end is connected to the screw, the screw is built into the slide groove and the thread passes through the slider, and the slider is connected to the dynamic battery internal resistance test assembly;

[0008] The dynamic battery internal resistance test assembly includes an arch rod, a magnetic regulator and a self-adjusting electric clamp, the lower end of the arch rod is connected to the slider and the upper end is connected to the magnetic regulator, and the outer end of the magnetic regulator is connected to the self-adjusting electric clamp.

[0009] As a preferred embodiment of the present invention, a plurality of groups of battery packs are arranged in the same row and two adjacent groups of battery packs are attached to each other, and a positive electrode connector and a negative electrode connector are provided on the battery packs.

[0010] As a preferred embodiment of the present invention, the suction cup is in the form of a disc-shaped structure with a raised middle portion and a double-sided adhesive tape is provided on the bottom, and is attached and fixed to the battery pack by the double-sided adhesive tape.

[0011] As a preferred embodiment of the present invention, the traction rope is made of elastic insulating material, and the outer end of the traction rope is connected to the end of the cross plate and pulls the cross plate to be attached to the side of the battery pack.

[0012] As a preferred embodiment of the present invention, the magnetic regulator includes a guide tube, an electromagnetic block, a magnet, a movable column, a connecting rod, a collar and a reset spring, wherein the guide tube is fixed to the top of the arch rod, the electromagnetic block is built into the guide tube, the magnet is located on the outside of the electromagnetic block and is fixed to the inner end of the movable column, the outer end of the movable column is connected to the self-adjusting electric clamp through the connecting rod, the collar is embedded in the outer end of the guide tube and is internally connected to the reset spring, and the reset spring is located in the guide tube and the inner end is in contact with the outer end of the movable column.

[0013] As a preferred embodiment of the present invention, the outer magnetic pole of the electromagnetic block is the same as the inner magnetic pole of the magnet when the electromagnetic block is powered on.

[0014] As a preferred embodiment of the present invention, the self-adjusting electric clamp includes a cover body, a second motor, a rotating adjustment disk and an electric clamp body, the cover body is fixed to the outer end of the connecting rod and has a socket at the end, the electric clamp body is placed in the socket and is connected to the internal resistance tester through a line, the second motor is divided into two groups and is symmetrically installed on the inner wall of the cover body, the power output end of the second motor is connected to the rotating adjustment disk, and the rotating adjustment disk is divided into two groups and is symmetrically arranged on both sides of the clamping body.

[0015] As a preferred embodiment of the present invention, the rotating adjustment disk includes a disk body and a toggle block fixed to the edge of the disk body. The toggle block is fan-shaped and one end of the toggle block is smaller than the other end.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This scheme designs an intelligent calculation meter for detecting and displaying the battery power of an electric vehicle. The battery power calculation meter includes an instrument display, a battery pack, a clamp, a lateral guide and a dynamic battery internal resistance test component. Two sets of lateral guides can be fixed on both sides of the instrument display by two sets of clamps. The lateral guide can realize the lateral movement of the dynamic battery internal resistance test component. The dynamic internal resistance test component is used to detect the battery pack. According to Ohm's law, the internal resistance tester will calculate the internal resistance of the battery according to the applied current and the measured voltage value, and then judge the remaining service life of the battery. In addition, automatic and differentiated detection and processing can be realized for each battery pack, thereby improving the functionality and intelligence of the battery power calculation meter.

[0018] 2. The battery power calculation meter designed by the present invention can achieve the purpose of dynamically detecting the remaining service life of the battery, thereby improving the functionality of the battery power calculation meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the present invention;

[0020] Figure 2 This is a structural diagram of the dynamic battery internal resistance test assembly of the present invention;

[0021] Figure 3 This is a diagram showing the internal structure of the cover body of the present invention;

[0022] Figure 4 This is a distribution structure diagram of the two groups of rotating adjustment disks of the present invention.

[0023] In the figure: 1. battery pack; 2. instrument panel body; 3. speed display screen; 4. power display screen; 5. remaining service life display screen; 6. internal resistance tester; 7. suction cup; 8. reel-up rod; 9. traction rope; 10. positioning bolt; 11. horizontal plate; 12. motor one; 13. screw rod; 14. slider; 15. slide groove; 16. arch rod; 17. magnetic regulator; 18. self-adjusting electric clamp; 19. double-sided adhesive tape; 20. guide tube; 21. electromagnetic block; 22. magnet; 23. moving column; 24. connecting rod; 25. collar; 26. reset spring; 27. cover body; 28. motor two; 29. ​​rotating adjustment disk; 30. electric clamp body; 31. socket; 32. disk body; 33. toggle block. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 The present invention provides a technical solution: an intelligent battery power calculation instrument for electric vehicles, comprising an instrument display, a battery pack 1, a clamp, a lateral guide and a dynamic battery internal resistance test assembly, the instrument display comprising an instrument panel body 2 and a speed display screen 3, a power display screen 4 and a remaining service life display screen 5 installed on the instrument panel body 2, the battery pack 1 is divided into several groups and installed in the body frame of the electric vehicle, and several groups of battery packs 1 form a battery pack, the clamp is divided into two groups and symmetrically installed at both ends of the battery pack, the outer ends of the two groups of clamps are connected to the two groups of lateral guides, the dynamic battery internal resistance test assembly is divided into two groups and respectively installed on the two groups of lateral guides, the two groups of dynamic battery internal resistance test assemblies are connected to the internal resistance tester 6 through a line, and the internal resistance tester 6 is installed below the remaining service life display screen 5;

[0026] The clamp includes a suction cup 7, a reeling rod 8, a traction rope 9 and a positioning bolt 10. The suction cup 7 is adhered to the end of the battery pack. The reeling rod 8 is rotatably arranged in the suction cup 7. The traction rope 9 is divided into two groups. The outer ends of the two groups of traction ropes 9 are connected to the transverse guide and the inner ends are connected to the reeling rod 8. The positioning bolt 10 is threadedly inserted into the suction cup 7 and the inner end is in conflict with the reeling rod 8. The suction cup 7 is fixed to the end of the battery pack. The traction rope 9 can be reeled by rotating the reeling rod 8, so that the traction rope 9 is reeled and the transverse guide is pulled to be fixed to the side of the battery pack, and the reeling rod 8 is positioned by the positioning bolt 10.

[0027] The transverse guide comprises a transverse plate 11, a motor 12, a screw 13 and a slider 14. The surface of the transverse plate 11 is processed to form a slide groove 15. The motor 12 is installed at the front end of the transverse plate 11 and the power output end is connected to the screw 13. The screw 13 is built into the slide groove 15 and the thread passes through the slider 14. The slider 14 is connected to the dynamic battery internal resistance test component. The screw 13 is driven to rotate by the motor 12. The screw 13 can drive the slider 14 to move laterally along the slide groove 15 during the rotation process.

[0028] The dynamic battery internal resistance test assembly includes an arch rod 16, a magnetic regulator 17 and a self-adjusting electric clamp 18. The lower end of the arch rod 16 is connected to the slider 14 and the upper end is connected to the magnetic regulator 17. The outer end of the magnetic regulator 17 is connected to the self-adjusting electric clamp 18. The magnetic regulator 17 can adjust the lateral position of the self-adjusting electric clamp 18.

[0029] Further improvement, such as Figure 1 As shown, several groups of battery packs 1 are arranged in the same row and two adjacent groups of battery packs 1 are attached to each other. The battery packs 1 are provided with positive electrode connectors and negative electrode connectors.

[0030] Further improvement, such as Figure 1 As shown, the suction cup 7 is a disc-shaped structure with a raised middle portion and a double-sided adhesive sticker 19 is provided at the bottom. The suction cup 7 is attached and fixed to the battery pack 1 by the double-sided adhesive sticker 19, so as to facilitate the disassembly and assembly of the transverse guide.

[0031] Further improvement, such as Figure 1 As shown, the traction rope 9 is made of elastic insulating material, the outer end of the traction rope 9 is connected to the end of the cross plate 11 and pulls the cross plate 11 to adhere to the side of the battery pack 1, and the traction rope 9 pulls two groups of cross plates 11 to clamp them on the side of the battery pack.

[0032] Further improvement, such as Figure 2As shown, the magnetic regulator 17 includes a guide tube 20, an electromagnetic block 21, a magnet 22, a moving column 23, a connecting rod 24, a collar 25 and a reset spring 26. The guide tube 20 is fixed to the top of the arch rod 16, the electromagnetic block 21 is built in the guide tube 20, the magnet 22 is located on the outside of the electromagnetic block 21 and fixed to the inner end of the moving column 23, the outer end of the moving column 23 is connected to the self-adjusting electric clamp 18 through the connecting rod 24, the collar 25 is embedded in the outer end of the guide tube 20 and is connected to the reset spring 26 inside, the reset spring 26 is located in the guide tube 20 and the inner end is in contact with the outer end of the moving column 23, the electromagnetic block 21 generates magnetism when powered on and pushes the magnet 22 to move outward, and the moving column 23 is driven to move outward synchronously during the outward movement of the magnet 22, so that the self-adjusting electric clamp 18 moves outward, when the electromagnetic block 21 is powered off, the magnetic force disappears, the reset spring 26 resets the moving column 23 and resets the self-adjusting electric clamp 18 to detach from the positive terminal and the negative terminal.

[0033] Further improvement, such as Figure 2 As shown, the outer magnetic pole of the electromagnetic block 21 is the same as the inner magnetic pole of the magnet 22 when the power is on. The electromagnetic block 21 generates magnetism when the power is on and pushes the magnet 22 to move outward, so that the self-adjusting electric clamp 18 moves outward and reaches the positive and negative terminals, which is convenient for automatic clamping.

[0034] Further improvement, such as Figure 3 As shown, the self-adjusting electric clamp 18 includes a cover body 27, a motor 28, a rotating adjustment disk 29 and an electric clamp body 30. The cover body 27 is fixed to the outer end of the connecting rod 24 and has a socket 31 at the end. The electric clamp body 30 is built into the socket 31 and is connected to the internal resistance tester 6 through a line. The motor 28 is divided into two groups and is symmetrically installed on the inner wall of the cover body 27. The power output end of the motor 28 is connected to the rotating adjustment disk 29. The rotating adjustment disk 29 is divided into two groups and is symmetrically arranged on both sides of the electric clamp body 30. The rotating adjustment disk 29 is driven to rotate by the motor 28, and the rotation of the disk body 32 drives the rotation of the toggle block 33. The toggle block 33 acts on the electric clamp body 30, so that the electric clamp body 30 is opened to facilitate clamping on the positive terminal and the negative terminal for detection.

[0035] Specifically, the rotating adjustment disk 29 includes a disk body 32 and a toggle block 33 fixed to the edge of the disk body 32. The toggle block 33 is fan-shaped and one end is smaller than the other end. The rotation of the disk body 32 drives the rotation of the toggle block 33. The toggle block 33 acts on the electric clamp body 30, so that the electric clamp body 30 is opened to facilitate clamping on the positive terminal and the negative terminal for detection.

[0036] During use: fix the suction cup 7 to the end of the battery pack, and reel the traction rope 9 by rotating the reeling rod 8, so that the traction rope 9 is reeled in and the lateral guide is pulled to be fixed on the side of the battery pack, and the reeling rod 8 is positioned by the positioning bolt 10. When the remaining service life of the battery needs to be detected, the screw 13 is driven to rotate by the motor 12, and the screw 13 can drive the slider 14 to move laterally along the slide groove 15 during the rotation, so that the dynamic battery internal resistance test component moves to the battery pack 1 at the corresponding position. At this time, the electromagnetic block 21 generates magnetism when powered on and pushes the magnet 22 to move outward. During the outward movement of the magnet 22, the moving column 23 is driven to move outward synchronously, so that the self-adjusting electric clamp 18 moves outward to the positive and negative terminals, and the rotating adjustment disk 29 is driven to rotate by the motor 28. The rotation of the disk 32 drives the rotation of the toggle block 33, and the toggle block 33 is used to act on the electric clamp body 30, so that the electric clamp body 30 is opened to facilitate clamping on the positive terminal and the negative terminal. At this time, the internal resistance tester 6 is turned on. The internal resistance tester 6 will apply a current of known magnitude to the battery to be tested. This current is usually set on the instrument and will remain constant during the test. When the current passes through the battery, the test instrument will measure the voltage response of the battery. The resistance inside the battery will cause a voltage drop, which will be measured by the test instrument. Through Ohm's law, the internal resistance tester 6 will calculate the internal resistance of the battery based on the applied current and the measured voltage value. The internal resistance tester 6 will display the calculated internal resistance value on the remaining service life display screen 5 for the user to view. In the above manner, multiple battery packs 1 can be tested in turn.

[0037] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric vehicle intelligent battery power calculation instrument, characterized in that: The electric vehicle comprises an instrument display, a battery pack (1), a clamp, a transverse guide and a dynamic battery internal resistance test assembly. The instrument display comprises an instrument panel body (2) and a speed display screen (3), a power display screen (4) and a remaining service life display screen (5) installed on the instrument panel body (2). The battery pack (1) is divided into a plurality of groups and installed in the body frame of the electric vehicle. The plurality of groups of battery packs (1) form a battery pack. The clamp is divided into two groups and symmetrically installed at both ends of the battery pack. The outer ends of the two groups of clamps are connected to the two groups of transverse guides. The dynamic battery internal resistance test assembly is divided into two groups and respectively installed on the two groups of transverse guides. The two groups of dynamic battery internal resistance test assemblies are connected to an internal resistance tester (6) through a line. The internal resistance tester (6) is installed below the remaining service life display screen (5). The clamp comprises a suction cup (7), a reeling rod (8), a traction rope (9) and a positioning bolt (10); the suction cup (7) is adhered to the end of the battery pack; the reeling rod (8) is rotatably arranged in the suction cup (7); the traction rope (9) is divided into two groups; the outer ends of the two groups of traction ropes (9) are connected to the transverse guide and the inner ends are connected to the reeling rod (8); the positioning bolt (10) is threadedly inserted into the suction cup (7) and the inner end thereof is in conflict with the reeling rod (8); The transverse guide comprises a transverse plate (11), a motor 1 (12), a screw (13) and a slider (14); the surface of the transverse plate (11) is machined to have a slide groove (15); the motor 1 (12) is mounted on the front end of the transverse plate (11) and the power output end is connected to the screw (13); the screw (13) is built into the slide groove (15) and the screw thread passes through the slider (14); the slider (14) is connected to the dynamic battery internal resistance test assembly; The dynamic battery internal resistance test assembly comprises an arch rod (16), a magnetic regulator (17) and a self-adjusting electric clamp (18); the lower end of the arch rod (16) is connected to the slider (14) and the upper end is connected to the magnetic regulator (17); the outer end of the magnetic regulator (17) is connected to the self-adjusting electric clamp (18).

2. The electric vehicle intelligent battery power calculation instrument according to claim 1, characterized in that: A plurality of groups of battery packs (1) are arranged in the same row and two adjacent groups of battery packs (1) are attached to each other. A positive electrode connector and a negative electrode connector are provided on the battery packs (1).

3. The electric vehicle intelligent battery power calculation meter according to claim 2 is characterized in that: The suction cup (7) is in the form of a disk-shaped structure with a raised middle portion and a double-sided adhesive tape (19) provided at the bottom, and is attached and fixed to the battery pack (1) via the double-sided adhesive tape (19).

4. The electric vehicle intelligent battery power calculation meter according to claim 3 is characterized by: The traction rope (9) is made of elastic insulating material, and the outer end of the traction rope (9) is connected to the end of the transverse plate (11) and pulls the transverse plate (11) to adhere to the side of the battery pack (1).

5. The electric vehicle intelligent battery power calculation meter according to claim 1, characterized in that: The magnetic regulator (17) comprises a guide tube (20), an electromagnetic block (21), a magnet (22), a movable column (23), a connecting rod (24), a collar (25) and a reset spring (26); the guide tube (20) is fixed to the top of the arch rod (16); the electromagnetic block (21) is built in the guide tube (20); the magnet (22) is located on the outside of the electromagnetic block (21) and is fixed to the inner end of the movable column (23); the outer end of the movable column (23) is connected to the self-adjusting electric clamp (18) through the connecting rod (24); the collar (25) is embedded in the outer end of the guide tube (20) and is connected to the reset spring (26) inside; the reset spring (26) is located in the guide tube (20) and the inner end is in contact with the outer end of the movable column (23).

6. The electric vehicle intelligent battery power calculation meter according to claim 5, characterized in that: When the electromagnetic block (21) is powered on, the outer magnetic pole is the same as the inner magnetic pole of the magnet (22).

7. The electric vehicle intelligent battery power calculation meter according to claim 1, characterized in that: The self-adjusting electric clamp (18) comprises a cover (27), a second motor (28), a rotating adjustment disk (29) and an electric clamp body (30); the cover (27) is fixed to the outer end of the connecting rod (24) and is provided with a socket (31) at the end; the electric clamp body (30) is built into the socket (31) and is connected to an internal resistance tester (6) through a circuit; the second motor (28) is divided into two groups and is symmetrically mounted on the inner wall of the cover (27); the power output end of the second motor (28) is connected to the rotating adjustment disk (29); the rotating adjustment disk (29) is divided into two groups and is symmetrically arranged on both sides of the electric clamp body (30).

8. The electric vehicle intelligent battery power calculation meter according to claim 7, characterized in that: The rotating adjustment disk (29) comprises a disk body (32) and a toggle block (33) fixed to the edge of the disk body (32); the toggle block (33) is in a fan-shaped structure and the width of one end is smaller than the width of the other end.

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