Portable SOC (State of Charge) estimation device for power battery of electric vehicle

Abstract

The utility model discloses a portable SOC estimation device for a power battery of an electric vehicle, which comprises an SOC estimation device body, a first groove is formed in the front end of the SOC estimation device body, a cover plate is rotatably arranged in the first groove, and the inner side of the cover plate is attached to the first groove in the front side of the SOC estimation device body; the storage assembly is arranged on the inner side of the cover plate and is close to the lower end of the cover plate; and the portable assembly is movably installed on the SOC estimation device body and located between the SOC estimation device body and the cover plate. The utility model belongs to the technical field of electric automobile batteries, and particularly provides a portable electric automobile power battery SOC (State of Charge) estimation device, which not only can be taken conveniently, but also can be used for fixing and collecting a portable assembly when the device is not used for storage and placement, so that the device is convenient to use. The situation that the storage and taking structure is located outside the device and affects the attractiveness is reduced; and meanwhile, through the arrangement of the storage assembly, the data line can be stored and placed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle batteries, in particular to a portable electric vehicle power battery SOC estimation device. Background Art

[0002] As the power source of electric vehicles, the performance and life of batteries directly affect the use of electric vehicles, so it is necessary to detect the status of various parameters of the battery in real time to ensure the safety of electric vehicles and extend the service life of electric vehicles. The state of charge (SOC) of the battery pack of an electric vehicle reflects the state of the remaining capacity of the battery pack, which can characterize the mileage that the electric vehicle can continue to travel. However, the charging and discharging process of the battery is a complex electrochemical reaction process, so the battery state of charge cannot be measured directly. It can only be estimated by measuring other battery parameters such as battery voltage, current, temperature and internal resistance.

[0003] The existing portable electric vehicle power battery SOC estimation device has the following defects:

[0004] (1) It does not have a portable structure. When carrying the portable electric vehicle power battery SOC estimation device, the portable electric vehicle power battery SOC estimation device is often picked up as a whole. The palm of the hand contacts the portable electric vehicle power battery SOC estimation device as a whole. If the hand slips when picking up the portable electric vehicle power battery SOC estimation device, it is easy to drop it to the ground or cause certain damage, resulting in damage to the portable electric vehicle power battery SOC estimation device as a whole, which requires repair;

[0005] (2) The data cable used by the portable electric vehicle power battery SOC estimation device cannot be stored, and the data cable is placed separately from the portable electric vehicle power battery SOC estimation device, resulting in the possibility that the data cable is easily lost when not used for a long time.

[0006] After searching, the Chinese utility model patent with announcement number CN207449661U discloses a portable electric vehicle power battery SOC estimation device. In the device, by setting connecting rod one, handle one, connecting rod two and handle two, handle one and handle two are lifted, and by setting rotating rod one and rotating rod two, handle one and handle two are vertically erected, thereby achieving the effect of moving estimation device one and estimation device two in the form of handles, thereby achieving the effect of convenient carrying. Utility Model Content

[0007] In view of the above situation, in order to remedy the above existing defects, the utility model provides a portable electric vehicle power battery SOC estimation device based on the existing public technology. Through this solution, not only can the device be carried and taken, but also the portable components can be fixed and folded when the device is not in use, thereby reducing the storage and taking structure being outside the device and affecting the aesthetics; at the same time, through the setting of the storage component, the data cable can also be stored and placed.

[0008] The utility model provides the following technical solution: The utility model proposes a portable electric vehicle power battery SOC estimation device, comprising:

[0009] A SOC estimation device body for automobile power detection and estimation, wherein a first groove is provided at the front end of the SOC estimation device body, a cover plate is rotatably provided in the first groove, and the inner side of the cover plate is fitted with the first groove at the front side of the SOC estimation device body;

[0010] A storage assembly for storing and placing data cables used by the SOC estimation device body, wherein the storage assembly is arranged on the inner side of the cover plate and close to the lower end of the cover plate;

[0011] The portable component is used for taking and carrying the SOC estimation device body, wherein the portable component is movably installed on the SOC estimation device body and is located between the SOC estimation device body and a cover plate.

[0012] Furthermore, in order to meet the storage needs of data cables, the storage assembly includes a storage groove, which is opened at the lower end of the inner side of the cover plate, and two groups of fixing rods are fixedly installed in the storage groove, and the two groups of fixing rods are respectively arranged near the two ends of the storage groove, and a fixing block is fixedly installed on the left side of the upper end of the storage groove, and two groups of card slots are opened at one end of the fixing block away from the side wall of the storage groove.

[0013] Preferably, two groups of limiting pads are installed at the rear openings of the two groups of the card slots, and the opening between the two groups of limiting pads is smaller than the width of the inner wall of the card slot.

[0014] Preferably, the two groups of limiting pads are both made of rubber material.

[0015] Furthermore, the storage assembly also includes a protective cover, a notch is opened on the upper side of the left end of the protective cover, two sets of knobs are rotatably installed at both ends of the protective cover, an end of the fixing rod away from the storage groove is provided with an external thread, and the two sets of knobs are threadedly sleeved on the two sets of fixing rods.

[0016] Furthermore, in order to achieve stable fixation of the cover plate relative to the first groove on the SOC estimation device body and meet the demand for convenient opening, a movable groove is opened in the upper end of the SOC estimation device body, and a limit block is movably installed at the opening of the lower end of the movable groove, and a limit column is provided at the lower end of the limit block. A spring is installed in the movable groove, and the two ends of the spring are respectively connected to the top wall in the movable groove and the upper surface of the limit block. A limit groove adapted to the limit column is opened on the upper end of the cover plate, and the lower end of the limit column is inserted in the limit groove. A pull rod is fixedly installed on the upper end of the limit block, and the longitudinal section of the pull rod is T-shaped. The upper end of the pull rod is located above the SOC estimation device body, and the spring is sleeved on the outside of the pull rod.

[0017] Furthermore, in order to simultaneously meet the requirements of the SOC estimation device body writing and the storage of the portable component, the portable component includes two groups of second grooves and a handle, the two groups of second grooves are symmetrically opened at the upper end of the SOC estimation device body, the two ends of the handle are respectively rotatably arranged in the two groups of second grooves, and a third groove is opened on the rear side of the upper end of the cover plate, the third groove is arranged corresponding to the second groove, and the third groove is adapted to the handle, and the lower end of the handle is inserted in the third groove.

[0018] The beneficial effects achieved by the utility model using the above structure are as follows: The portable electric vehicle power battery SOC estimation device proposed by the utility model has the following advantages:

[0019] 1. After the SOC estimation device body is used, the data cable can be stored by opening the cover plate, winding the data cable around the two sets of fixing rods, and clamping the connector of the data cable in the fixing block; by storing the data cable and the SOC estimation device body together, the data cable loss rate is reduced when the SOC estimation device is not used for a long time, and the data cable can be quickly taken out for use when the SOC estimation device is used;

[0020] 2. When the cover is opened or closed and the handle is rotated to open from the inside of the cover, the SOC estimation device body can be carried and taken by holding the handle, and the handle can be rotated and retracted into the cover to store the SOC estimation device body, thereby avoiding the handle occupying a certain space on the SOC estimation device body and improving the aesthetics of the handle on the SOC estimation device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model in the open cover state;

[0024] Figure 3 It is a cross-sectional structural schematic diagram of the cover plate of the utility model;

[0025] Figure 4 For this utility model Figure 3 A is a partial enlarged schematic diagram;

[0026] Figure 5 For this utility model Figure 3 A partial enlarged schematic diagram of B in the figure.

[0027] In the figure: 1. SOC estimation device body; 2. first groove; 3. cover plate; 4. storage groove; 5. fixing rod; 6. protective cover; 7. notch; 8. screw button; 9. fixing block; 10. slot; 11. limit pad; 12. movable slot; 13. spring; 14. limit block; 15. limit groove; 16. pull rod; 17. second groove; 18. handle; 19. third groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0030] See also Figure 1-3 , the utility model provides an embodiment: a portable electric vehicle power battery SOC estimation device, including a SOC estimation device body 1 for vehicle power detection estimation;

[0031] A first groove 2, the first groove 2 is opened on the front end of the SOC estimation device body 1;

[0032] The cover plate 3 is rotatably mounted in the first groove 2, and the rear side of the cover plate 3 is in contact with the first groove 2 on the front side of the SOC estimation device body 1;

[0033] A storage component, which is disposed in the cover plate 3 and is used to store and place data cables used by the SOC estimation device body 1;

[0034] The portable component is movably installed in the SOC estimation device body 1 and the cover 3. The portable component is used to take and carry the SOC estimation device body 1. After the use of the SOC estimation device body 1 is completed, the data cable is placed in the storage component, and then the data cable is completely sealed by closing the cover 3 and placed in the SOC estimation device body 1. The cover 3 is opened, and the portable component is taken out from the first groove 2 and the cover 3. The SOC estimation device body 1 is taken and carried by holding the portable component.

[0035] Specifically, referring to 2-4, in the present embodiment, the storage assembly includes a storage slot 4, which is provided on the lower end of the cover plate 3, and two groups of fixing rods 5 are fixedly installed in the storage slot 4. A fixing block 9 is fixedly installed on the left side of the upper end of the storage slot 4, and two groups of card slots 10 are provided in the fixing block 9. Two groups of limiting pads 11 are installed at the rear openings of the two groups of card slots 10. This structure winds the data cable around the two groups of fixing rods 5, and then clamps the data cable connector in the card slot 10. The cover plate 3 is flipped over and closed in the first groove 2, and the data cable can be stored and placed.

[0036] Specifically, referring to 4, in the present embodiment, the opening between the two sets of limiting pads 11 is smaller than the width of the inner wall of the card slot 10, and the two sets of limiting pads 11 are made of rubber material. The structure can be preferably made of rubber material according to the material of the two sets of limiting pads 11, so that when the data cable end is inserted into the card slot 10, the limiting pad 11 has a certain degree of softness and can limit and fix the data cable end.

[0037] in, Figure 2 What is shown in the figure is a schematic diagram of the explosion disassembly of the protective cover 6 compared to the storage slot 4. The protective cover 6 is sleeved on the two sets of fixing rods 5. A notch 7 is opened on the upper left end of the protective cover 6. Two sets of screw buttons 8 are rotatably installed on the rear side of the protective cover 6. The two sets of screw buttons 8 are sleeved on the rear ends of the two sets of fixing rods 5 through threads. After the data cables are wound around the two sets of fixing rods 5, this structure sleeves the protective cover 6 on the two sets of fixing rods 5 to protect and wrap the data cables, and fixes the protective cover 6 to the two sets of fixing rods 5 through the two sets of screw buttons 8.

[0038] Specifically, see 3 and Figure 5In this embodiment, a movable groove 12 is provided in the upper end of the SOC estimation device body 1, and a spring 13 is installed in the movable groove 12. A limit block 14 is movably installed at the opening of the lower end of the movable groove 12, and a limit column is provided at the lower end of the limit block 14. A limit groove 15 is provided at the upper end of the cover plate 3, and the lower end of the limit column is inserted into the limit groove 15. A pull rod 16 is fixedly installed on the upper end of the limit block 14. The longitudinal section of the pull rod 16 is T-shaped, and the upper end of the pull rod 16 is located above the SOC estimation device body 1. The spring 13 is sleeved on the outside of the pull rod 16. This structure can fix the cover plate 3 in the first groove 2 by inserting the limit column into the limit groove 15 under the action of the restoring elastic force of the spring 13.

[0039] Specifically, referring to 1-3, in the present embodiment, the portable component includes a second groove 17 and a handle 18. The second groove 17 is provided in the upper end of the SOC estimation device body 1, and the handle 18 is rotatably installed in the second groove 17. A third groove 19 is provided on the rear side of the upper end of the cover 3, and the lower end of the handle 18 is inserted into the third groove 19. After the cover 3 is opened, the handle 18 is rotated open in the second groove 17, so that the SOC estimation device body 1 can be taken and carried.

[0040] Working principle: After the SOC estimation device body 1 is used, Figure 3 and Figure 4 As shown, the data cable is first wound around the two groups of fixing rods 5. After the data cable is wound, the connector of the data cable is clamped in the two groups of slots 10 on the fixing block 9, and the data cable is fixed by the limiting pad 11. The protective cover 6 is sleeved on the two groups of fixing rods 5, and the data cable connector part is transmitted from the recess 7. The two groups of screw buttons 8 are twisted, and the two groups of screw buttons 8 rotate at the rear ends of the two groups of fixing rods 5, so that the protective cover 6 can be fixed on the two groups of fixing rods 5, and the data cable wound on the two groups of fixing rods 5 can be wrapped and stored.

[0041] When the SOC estimation device 1 is carried, Figure 3 and Figure 5 As shown, first pull the pull rod 16, the pull rod 16 drives the limit block 14 to be pulled out from the limit groove 15, the limit block 14 is pulled out from the limit groove 15, slides into the movable groove 12 and squeezes the spring 13, then the cover plate 3 is flipped open from the first groove 2, and the handle 18 is rotated open from the second groove 17, the SOC estimation device body 1 can be taken by the handle 18, after the cover plate 3 is flipped and closed in the first groove 2, the limit block 14 is popped out from the movable groove 12 and inserted into the limit groove 15 under the action of the restoring elastic force of the spring 13, and the cover plate 3 can be fixed in the first groove 2. The above is the entire working principle of the utility model.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.

[0043] 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 portable electric vehicle power battery SOC estimation device, characterized in that: include: A SOC estimation device body for automobile power detection and estimation, wherein a first groove is provided at the front end of the SOC estimation device body, a cover plate is rotatably provided in the first groove, and the inner side of the cover plate is fitted with the first groove at the front side of the SOC estimation device body; A storage assembly for storing and placing data cables used by the SOC estimation device body, wherein the storage assembly is arranged on the inner side of the cover plate and close to the lower end of the cover plate; The portable component is used for taking and carrying the SOC estimation device body, wherein the portable component is movably installed on the SOC estimation device body and is located between the SOC estimation device body and a cover plate.

2. A portable electric vehicle power battery SOC estimation device according to claim 1, characterized in that: The storage assembly includes a storage groove, which is opened at the lower end of the inner side of the cover plate. Two groups of fixing rods are fixedly installed in the storage groove, and the two groups of fixing rods are respectively arranged near the two ends of the storage groove. A fixing block is fixedly installed on the left side of the upper end of the storage groove, and two groups of card slots are opened at one end of the fixing block away from the side wall of the storage groove.

3. A portable electric vehicle power battery SOC estimation device according to claim 2, characterized in that: Two groups of limiting pads are installed at the rear openings of the two groups of the card slots, and the opening between the two groups of limiting pads is smaller than the width of the inner wall of the card slot.

4. A portable electric vehicle power battery SOC estimation device according to claim 3, characterized in that: The two groups of limit pads are both made of rubber material.

5. A portable electric vehicle power battery SOC estimation device according to claim 4, characterized in that: The storage assembly also includes a protective cover, a notch is provided on the upper left end of the protective cover, two sets of screw buttons are rotatably mounted at both ends of the protective cover, an end of the fixing rod away from the storage groove is provided with an external thread, and the two sets of screw buttons are threadedly sleeved on the two sets of fixing rods.

6. A portable electric vehicle power battery SOC estimation device according to claim 1 or 5, characterized in that: A movable groove is provided in the upper end of the SOC estimation device body, and a limit block is movably installed at the opening of the lower end of the movable groove. A limit column is provided at the lower end of the limit block. A spring is installed in the movable groove, and the two ends of the spring are respectively connected to the top wall in the movable groove and the upper surface of the limit block. A limit groove adapted to the limit column is provided at the upper end of the cover plate, and the lower end of the limit column is inserted in the limit groove. A pull rod is fixedly installed on the upper end of the limit block, and the longitudinal section of the pull rod is T-shaped. The upper end of the pull rod is located above the SOC estimation device body, and the spring is sleeved on the outside of the pull rod.

7. A portable electric vehicle power battery SOC estimation device according to claim 6, characterized in that: The portable component includes two groups of second grooves and a handle, the two groups of second grooves are symmetrically opened at the upper end of the SOC estimation device body, the two ends of the handle are respectively rotatably arranged in the two groups of second grooves, and a third groove is opened on the rear side of the upper end of the cover plate, the third groove is arranged corresponding to the second groove, and the third groove is adapted to the handle, and the lower end of the handle is inserted in the third groove.

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