CN219417683U

CN219417683U - Device convenient for BMS slave control unit detection

Info

Publication number: CN219417683U
Application number: CN202320096695.2U
Authority: CN
Inventors: 汤健; 李振洋; 魏小磊; 赵磊
Original assignee: Anhui Hanxing Energy Co ltd
Current assignee: Anhui Hanxing Energy Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-07-25
Anticipated expiration: 2033-02-01

Abstract

The utility model provides a device convenient for detecting a secondary control unit of a battery Box (BMS), belongs to the technical field of energy storage, and is used for solving the technical problem that the detection result of the secondary control unit of the battery box BMS is inaccurate. The device comprises a box body, wherein two metal fixing plates are fixed in the middle of the box body, a plurality of single batteries are arranged between the outer sides of the metal fixing plates and the inner wall of the box body, a rotating rod is rotatably arranged between the two metal fixing plates, a driving motor is fixed on the inner wall of the box body, a plurality of temperature sensors are fixed on the rotating rod, and a stabilizing mechanism is arranged at one end, far away from the driving motor, of the rotating rod; according to the utility model, the positions of the two temperature sensors are interchanged, so that the possibility of faults of the temperature sensors is sequentially discharged, and the detection result of the BMS slave control unit is more accurate; the rotating rod after rotation is limited, so that the stability of the temperature sensor is improved, and the accuracy of the detection structure is further improved; the circuit of the temperature sensor is simple to connect, and the temperature sensor is convenient for operators to install.

Description

Device convenient for BMS slave control unit detection

Technical Field

The utility model belongs to the technical field of energy storage, and relates to a device convenient for BMS slave control unit detection.

Background

The BMS Chinese name power battery management system is used for monitoring and managing batteries, and the battery charging and discharging process is controlled by collecting and calculating parameters such as voltage, current, temperature, SOC and the like, so that the battery is protected, the comprehensive performance of the battery is improved, and the BMS Chinese name power battery management system is an important tie for connecting a vehicle-mounted power battery and an electric automobile. The BMS collects, processes and stores important information in the running process of the battery pack in real time, exchanges information with external equipment such as a whole vehicle controller, and solves key problems of safety, usability, service life and the like in a lithium battery system.

The BMS slave control unit is mainly used for improving the utilization rate of the battery, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery and monitoring the state of the battery. In popular terms, the BMS system is a system for managing, controlling and using the battery pack, one of the functions of the BMS system is to detect the temperature of each battery and know the state of the battery in time, but only one temperature detector is arranged at the same position, so that the detection result part is accurate possibly due to the damage of the temperature sensor.

Based on this, we have devised a device that facilitates detection of BMS slave control units.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a device for facilitating detection of a secondary control unit of a BMS, which aims at solving the technical problems that: how to improve the detection accuracy of the BMS slave control unit.

The aim of the utility model can be achieved by the following technical scheme:

make things convenient for BMS from device that accuse unit detected, the power distribution box comprises a box body, the louvre has been seted up to box side, the centre of box is fixed with two metal fixed plates, two metal fixed plate symmetric distributions, install a plurality of battery cells between metal fixed plate outside and the box inner wall, and the internally mounted of box has the controller, rotate in the middle of two metal fixed plates and be provided with the dwang, and be fixed with on the inner wall of box one side and be used for driving dwang pivoted driving motor, be fixed with a plurality of temperature sensor on the dwang, and temperature sensor's probe is just to the battery cell of corresponding position respectively, the one end that driving motor was kept away from to the dwang is equipped with stabilizing mean.

The inner side of the metal fixing plate is provided with an insulating layer, the insulating layer is provided with a notch, and the notch is aligned with a probe of a temperature sensor at a corresponding position.

By adopting the structure, the metal fixing plate can rapidly transfer the temperature of the single battery to the probe of the temperature sensor, and the heat preservation layer can prevent the temperature of the single battery from diffusing into the two metal fixing plates, so that the temperature sensor is inaccurate in detection structure.

The stabilizing mechanism comprises two round rods and eight limiting rods, the two round rods are fixed on two sides of the rotating rod and are symmetrically distributed, two mounting plates are fixed in the box body and are respectively located on the outer sides of the two round rods, the limiting rods are fixed on the mounting plates, four limiting rods are fixed on the same mounting plate, and the four limiting rods are respectively located on the outer sides of the round rods.

By adopting the structure, in actual use, the round bar can be stabilized at the intermediate position by four gag levers, the stability of the temperature sensor is improved, the detection accuracy is further improved, when the rotating bar rotates, the round bar can extrude the two gag levers with the contact to the outside, and the gag levers deform, so that the round bar can pass through smoothly.

And a rotating bearing is fixed on the outer side of the limiting rod, and the outer ring of the rotating bearing abuts against the outer side of the round rod.

By adopting the structure, the rotating bearing can convert the friction between the limiting rod and the round rod into rolling friction, so that the abrasion consumption is reduced, and the service life of equipment is prolonged.

Two extending sheets are fixed at the side end of the limiting rod and symmetrically distributed.

By adopting the structure, under the action of the extension piece, the limiting rod only can elastically deform at the left side and the right side, and cannot bend in the vertical direction, so that the limiting rod is prevented from being extruded and broken by the round rod, and the deformation resistance of the limiting rod is improved.

The wiring hole has been seted up in the middle of the dwang, and semicircle breach has been seted up to the one end of dwang.

By adopting the structure, the wiring hole and the semicircular notch facilitate the circuit connection of the temperature sensor, and the connecting line cannot be excessively pulled in the process of rotating the rotating rod for half a circle, so that the installation of operators is facilitated.

Compared with the prior art, the device convenient for BMS slave control unit detection has the following advantages:

1. through temperature sensor, dwang and driving motor, with the position interchange of two temperature sensor of corresponding position, come the possibility that discharge temperature sensor breaks down in proper order for BMS is from the testing result of control unit more accurate.

2. Through stabilizing mean, carry out spacingly to the dwang after rotating, prevent that the dwang from rocking, improve temperature sensor's stability, further improve the accuracy of detecting the structure.

3. Through walking line hole and semicircle breach, make things convenient for temperature sensor's circuit connection, at the in-process of dwang rotation half circle, can not produce too big pulling to connecting wire, make things convenient for operating personnel to install.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the case of the present utility model;

FIG. 3 is a schematic view of a partial structure of the present utility model;

FIG. 4 is a schematic view of the structure of the stabilizing mechanism of the present utility model;

fig. 5 is a schematic structural view of a stop lever according to the present utility model.

In the figure: 1. a case; 2. a heat radiation hole; 3. a metal fixing plate; 4. a single battery; 5. a controller; 6. a rotating lever; 7. a driving motor; 8. a temperature sensor; 9. a stabilizing mechanism; 901. a mounting plate; 902. a limit rod; 903. a round bar; 904. an extension piece; 905. a rotating bearing; 10. a heat preservation layer; 11. a notch; 12. a semicircular notch.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Referring to fig. 1-5, this embodiment provides a device for facilitating detection of a BMS slave control unit, including a box 1, a heat dissipation hole 2 is provided at a side end of the box 1, two metal fixing plates 3 are fixed in the middle of the box 1, the two metal fixing plates 3 are symmetrically distributed, a plurality of single batteries 4 are installed between the outer side of the metal fixing plates 3 and the inner wall of the box 1, a controller 5 is installed in the box 1, a rotating rod 6 is rotatably arranged in the middle of the two metal fixing plates 3, a driving motor 7 for driving the rotating rod 6 to rotate is fixed on the inner wall of one side of the box 1, a plurality of temperature sensors 8 are fixed on the rotating rod 6, probes of the temperature sensors 8 are respectively corresponding to the single batteries 4 at corresponding positions, and one end, far away from the driving motor 7, of the rotating rod 6 is provided with a stabilizing mechanism 9.

The inner side of the metal fixing plate 3 is provided with an insulating layer 10, the insulating layer 10 is provided with a notch 11, and the notch 11 is aligned with a probe of the temperature sensor 8 at a corresponding position; the metal fixing plates 3 can be used for rapidly transmitting the temperature of the single battery 4 to the probe of the temperature sensor 8, and the heat preservation layer 10 can be used for preventing the temperature of the single battery 4 from diffusing into the two metal fixing plates 3, so that the temperature sensor 8 is inaccurate in detection structure.

The stabilizing mechanism 9 comprises two round rods 903 and eight limiting rods 902, the two round rods 903 are fixed on two sides of the rotating rod 6, the two round rods 903 are symmetrically distributed, two mounting plates 901 are fixed in the box body 1, the two mounting plates 901 are respectively positioned on the outer sides of the two round rods 903, the limiting rods 902 are fixed on the mounting plates 901, four limiting rods 902 are fixed on the same mounting plate 901, and the four limiting rods 902 are respectively positioned on the outer sides of the round rods 903; in actual use, four gag levers 902 can stabilize round bar 903 in the intermediate position, improves temperature sensor 8's stability, further improves detection accuracy, and when dwang 6 rotates, round bar 903 can be with two gag levers 902 outside extrudees rather than contacting, and gag lever levers 902 take place deformation for round bar 903 can pass through smoothly.

A rotary bearing 905 is fixed on the outer side of the limiting rod 902, and the outer ring of the rotary bearing 905 is propped against the outer side of the round rod 903; the rotating bearing 905 can convert the friction between the limit rod 902 and the round rod 903 into rolling friction, so that the abrasion consumption is reduced, and the service life of equipment is prolonged.

Two extension pieces 904 are fixed at the side end of the limiting rod 902, and the two extension pieces 904 are symmetrically distributed; under the action of the extension piece 904, the limit rod 902 only deforms elastically at the left and right sides and cannot bend in the up-down direction, so that the limit rod 902 is prevented from being extruded and broken by the round rod 903, and the deformation resistance of the limit rod 902 is improved.

A wiring hole is formed in the middle of the rotating rod 6, and a semicircular notch 12 is formed in one end of the rotating rod 6; the wiring holes and the semicircular gaps 12 facilitate circuit connection of the temperature sensor 8, and in the process of rotating the rotating rod 6 for half a circle, overlarge pulling can not be generated on a connecting line, so that the installation of operators is facilitated.

In this embodiment, the above fixing methods are all the most commonly used fixing methods in the art, such as welding, bolting, etc.; the above electrical components, such as the single battery 4, the controller 5, the driving motor 7, the temperature sensor 8, etc., are all products in the prior art, and can be directly purchased and used in the market, and the specific principle is not repeated.

The working principle of the utility model is as follows:

under the action of the driving motor 7, the rotating rod 6 can rotate a half circle, positions of the two corresponding temperature sensors 8 are changed, when the temperature sensors 8 detect temperature abnormality, the method can eliminate the problem of faults of the temperature sensors 8, the detection accuracy is improved, the metal fixing plate 3 can rapidly transfer the temperature of the single battery 4 to probes of the temperature sensors 8, the heat preservation layer 10 can prevent the temperature of the single battery 4 from diffusing into the two metal fixing plates 3, the temperature sensors 8 are inaccurate in detection structure, in addition, the four limiting rods 902 can stabilize the round rods 903 at the middle position, the stability of the temperature sensors 8 is improved, the detection accuracy is further improved, when the rotating rod 6 rotates, the round rods 903 can extrude the two rotating bearings 905 contacted with the round rods to the sides, the corresponding limiting rods 902 are bent outwards, the limiting rods 902 deform, and the round rods 903 can pass smoothly.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. Make things convenient for BMS from device that accuse unit detected, including box (1), a serial communication port, louvre (2) have been seted up to box (1) side, the centre of box (1) is fixed with two metal fixed plates (3), two metal fixed plates (3) symmetric distribution, install a plurality of battery cells (4) between metal fixed plate (3) outside and box (1) inner wall, and internally mounted of box (1) has controller (5), rotate in the middle of two metal fixed plates (3) and be provided with dwang (6), and be fixed with on box (1) one side inner wall and be used for driving dwang (6) pivoted driving motor (7), be fixed with a plurality of temperature sensor (8) on dwang (6), and the probe of temperature sensor (8) is just to battery cell (4) of corresponding position respectively, the one end that driving motor (7) were kept away from to dwang (6) is equipped with stabilizing mean (9).

2. The device for facilitating detection of the BMS slave control unit according to claim 1, wherein the heat preservation layer (10) is arranged on the inner side of the metal fixing plate (3), the heat preservation layer (10) is provided with a notch (11), and the notch (11) is aligned with a probe of the temperature sensor (8) at a corresponding position.

3. The device for facilitating detection of a BMS slave control unit according to claim 1 or 2, wherein the stabilizing mechanism (9) comprises two round bars (903) and eight limit bars (902), the two round bars (903) are fixed on two sides of the rotating bar (6), the two round bars (903) are symmetrically distributed, two mounting plates (901) are fixed in the box (1), the two mounting plates (901) are respectively located on the outer sides of the two round bars (903), the limit bars (902) are fixed on the mounting plates (901), four limit bars (902) are fixed on the same mounting plate (901), and the four limit bars (902) are respectively located on the outer sides of the round bars (903).

4. A device for facilitating detection of a BMS slave control unit according to claim 3, wherein a rotating bearing (905) is fixed at the outer side of the limit rod (902), and the outer ring of the rotating bearing (905) is abutted against the outer side of the round rod (903).

5. A device for facilitating detection of a BMS slave control unit according to claim 3, wherein two extension pieces (904) are fixed at the side end of the limit lever (902), and the two extension pieces (904) are symmetrically distributed.

6. The device for facilitating detection of the BMS slave control unit according to claim 1, wherein a wiring hole is formed in the middle of the rotating rod (6), and a semicircular notch (12) is formed at one end of the rotating rod (6).