CN215418299U

CN215418299U - Storage battery

Info

Publication number: CN215418299U
Application number: CN202121395927.1U
Authority: CN
Inventors: 南寅; 刘万里; 南添; 韦丹; 于纪磊
Original assignee: Tianjin Svrui Intelligent Electrical Co Ltd
Current assignee: Tianjin Svrui Intelligent Electrical Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-01-04
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a storage battery, at least comprising a shell, a plurality of battery packs connected in series or/and in parallel, at least two power supply ends, at least one electronic controller and at least one switch which is connected with a main circuit and is controlled by the electronic controller and provided with contacts, wherein the shell at least comprises a base and a cover plate, the battery packs are arranged at the lower part of the base, the at least two power supply ends are arranged on the cover plate, the controller is arranged in a cavity at the upper part of the base, and the switch is arranged on the base or/and the cover plate or/and the electronic controller.

Description

Storage battery

Technical Field

The utility model relates to the technical field of batteries, in particular to a storage battery.

Background

With the rapid development of new energy electric power and electric automobile industry, energy storage gradually becomes a supporting technology. It is known that the storage battery is a common energy storage technology. The storage battery is a chemical power supply, can convert electric energy into chemical energy for storage, can supply power to electric equipment through internal chemical reaction, and has wide application in industries such as electric automobiles, electric vehicles and the like. The storage battery is characterized in that the storage battery is not charged, overdischarged, overcurrent, short-circuit and ultrahigh-temperature charging and discharging due to the fact that the storage battery is made of materials, the storage battery is always provided with a protection switch, the protection switch on the storage battery is an MOS (metal oxide semiconductor) tube which is an electronic component at present, the electronic switch is easily influenced by a magnetic field, an electric field, ambient temperature and the like, particularly temperature.

In addition, a large impact current usually exists at the moment of starting the motor, the electronic switch is greatly influenced, the electronic switch is possibly damaged, and the motor is open-circuited or broken and cannot work normally.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above problems, the present invention provides a storage battery, in which a mechanical switch that is not easily affected by a large current is disposed in a housing of the storage battery, and an electronic controller controls the mechanical switch to be turned on or off, so as to improve the reliability of the storage battery and overcome the above problems.

The utility model is realized by the following technical scheme:

a storage battery at least comprises a shell, a plurality of battery packs connected in series or/and in parallel, at least two power supply ends, at least one electronic controller and at least one switch which is connected to a main circuit and is controlled by the electronic controller and provided with contacts, wherein the shell at least comprises a base and a cover plate, the battery packs are arranged at the lower part of the base, the at least two power supply ends are arranged on the cover plate, the controller is arranged in a cavity at the upper part of the base, and the switches are arranged on the base or/and the cover plate or/and the electronic controller.

Preferably, a manual operating handle is arranged on the cover plate, and the other end of the manual operating handle is directly or indirectly connected to one end of the switch for resetting the switch.

Preferably, the electronic controller is a battery management system.

Preferably, the battery further comprises an electromagnet or a motor.

Preferably, the electromagnet or the motor and the switch are integrated or separated.

Preferably, the electronic controller is connected with the electromagnet or the motor, and the electronic controller can drive the electromagnet or the motor to drive the switch to be switched on or switched off.

Preferably, the switch is a single-break or double-break switch.

Preferably, the access line of the switch is a hard conductor or/and a flexible conductor.

Preferably, the switch is a knife switch, and includes a moving contact, an electromagnet or a motor, and the moving contact is disposed at an action output end of the electromagnet or the motor.

Preferably, a manual operation handle is arranged on the cover plate and connected with a manual action input end of the electromagnet or the motor.

Preferably, the switch is screwed or glued or snap-connected to the upper cover.

Preferably, the switch is screwed or welded or snap-fitted to the electronic control unit.

The utility model has the following beneficial effects:

1. the switch of the storage battery adopts a mechanical switch, is less susceptible to the influence of current than an electronic switch, greatly improves the reliability of a control system, and avoids the damage of heavy current discharge or charging on the storage battery;

2. the switch is arranged in the shell and can be fixed on the shell or an electronic controller, the switch is reasonable in arrangement and layout, meanwhile, the switch is not influenced by the external environment, is not easy to damage and is high in reliability;

3. the electronic controller can detect the output voltage of the storage battery, and when the output voltage is lower than a certain value, the electronic controller sends a disconnection control command to the switch to disconnect the switch and prevent the storage battery from being excessively charged and discharged, so that the service life of the storage battery is influenced;

4. the storage battery adopts a mechanical switch, and the control circuit drives the switch to be switched on or off according to the control signal, so that the switch is low in control cost, economic and reliable;

5. the switch of the utility model adopts a chuck type switch structure, the manual operation handle positioned outside the storage battery is connected with the manual action input end of the electromagnet, when large current passes through, the manual opening and closing operation of the switch can be realized, and the reliability is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a battery according to the present invention;

FIG. 2 is another schematic structural diagram of the battery provided by the present invention;

FIG. 3 is another schematic structural diagram of the battery according to the present invention;

FIG. 4 is a schematic diagram of an operating circuit of the battery provided by the present invention;

FIG. 5 is a schematic diagram of a switch structure of the battery provided by the present invention;

FIG. 6 is a schematic structural diagram of a housing of a switch of a storage battery according to the present invention;

fig. 7 is a schematic structural view of a movable contact of a switch of a storage battery provided by the utility model;

FIG. 8 is a schematic diagram of an electromagnet structure of a switch of a storage battery provided by the present invention;

fig. 9 is a schematic view of a movable iron core structure of a switch of a storage battery according to the present invention.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration set forth below, but rather covers any modification, replacement or improvement of elements, components without departing from the spirit of the utility model.

As shown in fig. 1, the present invention discloses a storage battery, which at least comprises a housing 10, a plurality of battery packs 20, at least two power terminals, at least one electronic controller 30, and at least one switch 40 with contacts controlled by the electronic controller, wherein the switch is a single-break switch or a double-break switch, the switch 40 is disposed in the housing, specifically, the housing 10 comprises an upper cover 11 and a base 12, the switch 40 is fixed on the inner wall of the upper cover 11 by a screw thread, an adhesive bond or a buckle, the upper cover 11 and the base 12 form an inner cavity, and the battery pack 20 is located in the inner cavity. Of course, the setting position of the switch 40 is not limited to the upper cover, the specific setting position of the switch 40 can be determined according to the specific layout condition among the components in the housing, the position selection is flexible and various, and the operation is convenient.

The cover plate 11 is provided with a manual operation handle 50, one end of the manual operation handle 50 is directly or indirectly connected to one end of the switch 40 for resetting the switch 40, and the manual operation handle 50 is arranged on the top of the cover plate 11 in the embodiment, so that manual operation is facilitated.

As shown in fig. 5 to 7, the switch 40 includes an insulating housing 41, and an electrically driven bistable electromagnet 42, a movable contact 43, a fixed contact 44, an incoming line terminal 45, and an outgoing line terminal 46 that are disposed in the insulating housing 41, where the movable contact 43 is disposed at one end of the electrically driven bistable electromagnet 42, the fixed contact 44 is disposed in front of the movable contact 43, the movable contact 43 is provided with a soft conductor connection portion 431 and a guide portion 432, the insulating housing 41 is provided with a guide limit groove 411, the guide portion 432 is disposed in the guide limit groove 411, and the movable contact 43 can slide along the guide limit groove 411.

In this embodiment, the movable contact 43 is a collet-type movable contact, and is connected to the incoming line terminal 45 through a flexible conductor, one end of the flexible conductor is connected to the incoming line terminal 45, the other end of the flexible conductor is connected to the soft conductor connection point 431, the fixed contact 44 is a knife-type fixed contact, and is disposed on the outgoing line terminal 46 and integrally disposed with the outgoing line terminal, in other embodiments, the movable contact 43 may be connected to the outgoing line terminal 46 through a flexible conductor, the fixed contact 44 is disposed on the incoming line terminal 45 or connected to the incoming line terminal 45 through a flexible conductor, and meanwhile, the movable contact may be a socket type movable contact, and the fixed contact is a plug type fixed contact. In the utility model, the structures of the moving contact 43 and the fixed contact 44 are not limited, and the connection relationship between the moving contact 43, the fixed contact 44, the incoming line terminal 45 and the outgoing line terminal 46 is not limited, so long as the purpose of the utility model can be realized.

As shown in fig. 8, the electrically driven bistable electromagnet 42 includes a yoke 421, a cover plate 422, a frame 423, a coil 424, a first permanent magnet 425, a second permanent magnet 426, a first stationary core 427, a second stationary core 428, and a movable core 429, wherein the coil 424 is wound around the frame 423, the first permanent magnet 425 and the second permanent magnet 426 are disposed in mounting grooves of the frame 423, the yoke 421 is fixedly connected to the cover plate 422, the frame 423 is fixedly connected to the inner sides of the yoke 421 and the cover plate 422, magnetic pole faces of the first permanent magnet 425 and the second permanent magnet 426 are attached to the inner side of the yoke 421, the first stationary core 427 and the second stationary core 428 are respectively fixedly connected to the inner sides of the yoke 421 and the cover plate 422 and penetrate through a middle hole of the frame 423, the movable core 429 is disposed in a middle hole of the frame 423 and can be disposed in the first stationary core 427, the second stationary core 429, The second stationary core 428 moves back and forth

Further, as shown in fig. 9, the movable iron core 429 includes a main body portion 429A and an extension portion 429B, the diameter of which is different from that of the electrically-driven bistable electromagnet 42, the extension portion 429B passes through a fixing hole 433 of the movable contact 43, so that the movable contact 43 is connected to the action output end, the diameter of the main body portion 429A is larger than that of the extension portion 429B, a first boss 291 is formed at a connection position of the two, the main body portion 429A is composed of a first main body portion 429A-1, a second main body portion 429A-2 and a third main body portion 429A-3 which are connected in sequence, the diameter of the second main body portion 429A-2 is larger than that of the first main body portion 429A-1 and the third main body portion 429A-3, and a second boss 292 is formed at a connection position of the first main body portion 429A-1 and the second main body portion 429A-2, a third step 293 is formed at the joint of the second main body part 429A-2 and the third main body part 429A-3, the second boss 292 is separably contacted with the second static iron core 428, the third boss 293 is separably contacted with the first static iron core 427, the first main body part 429A-1 protrudes out of the insulating housing 41, and the first main body part 429A-1 is a manual operation input end of the electrically-driven bistable electromagnet 42 and is connected with the manual operation handle 50 to serve as a manual switching-on/off operation mechanism. Of course, the switch 40 can also be electrically switched on and off, and the coil 424 is an electrical action input terminal.

With continued reference to fig. 1, the battery further includes an electronic controller 30, an electromagnet or a motor, the electronic controller 30 is connected to the battery pack 20 through a wire, the battery pack 20 may be formed by connecting a plurality of batteries in series or in parallel, the switch 40 is connected to the electronic controller 30 through a wire, and the electric conduction may be a flexible wire or a hard wire.

In other specific embodiments, the switch 40 may also be disposed on the base 12, the switch is disposed inside a side wall of the base 12, the switch 40 may be fixed on the side wall of the base 12 through a thread, or a clamping groove is formed inside the side wall of the base 12, the switch is clamped in the clamping groove to realize a snap connection, the switch 40 is connected with the electronic controller 30 through a flexible conductor, and the manual operating handle 50 is disposed on the side wall of the base 12, as shown in fig. 2.

In another embodiment, the switch 40 may be disposed on the electronic controller 30, the switch 40 may be directly welded on the electronic controller 30, or fixed on the electronic controller 30 by a screw connection or a snap connection, and the manual operating handle 50 is disposed on the top of the upper cover 11 in this embodiment, as shown in fig. 3.

The electronic controller in this embodiment is a battery management system, the battery further includes an electromagnet or a motor, the electromagnet or the motor and the switch 40 are integrated or split, that is, the electromagnet or the motor may be an internal element of the switch or a component connected with the switch and located outside the switch, the electronic controller is connected with the electromagnet or the motor, and the electronic controller can drive the electromagnet or the motor to drive the switch 40 to be turned on or off.

As shown in fig. 4, the battery pack 20 in this embodiment is formed by connecting 3 battery cells in series, the battery pack 20 is connected in series with the switch 40, the electronic controller is connected with the switch 40 and is used for controlling the switch 40 to be opened or closed, the electronic controller sends a control command to the switch according to a received detection signal such as voltage, current, temperature and the like to close or open the switch, and when the temperature of the storage battery is too high, the electronic controller sends an opening control command to the switch to open the switch, so as to prevent the whole storage battery from being damaged; when the electronic controller receives the voltage monitoring signal, when the voltage monitoring signal is lower than a set value, a disconnection control command is sent to the switch, and the phenomenon that the storage battery is excessively discharged to cause power shortage is prevented.

The switch of the storage battery adopts a mechanical switch, is less susceptible to the influence of current than an electronic switch, greatly improves the reliability of a control system, and avoids the damage of heavy current discharge or charging on the storage battery; the switch is arranged in the shell and can be fixed on the shell or an electronic controller, the switch arrangement layout is reasonable, and meanwhile, the switch is not influenced by the external environment, is not easy to damage and has high reliability; meanwhile, a mechanical switch is adopted, and a control circuit drives the switch to be switched on or switched off for a control signal.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The present embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A battery comprising at least a casing (10), a plurality of series or/and parallel battery packs (20), at least two power terminals, at least one electronic controller (30), at least one contact-equipped switch (40) connected to a main circuit and controlled by the electronic controller (30), said casing (10) comprising at least a base (12) and a cover plate (11), said battery packs (20) being disposed on the lower part of said base (12), said at least two power terminals being disposed on said cover plate (11), said controller (30) being disposed in a cavity on the upper part of said base, characterized in that said switch (40) is disposed on said base (12) or/and cover plate (11) or/and electronic controller (30).

2. Accumulator according to claim 1, characterized in that on said cover (11) a manual operating handle (50) is provided, the other end of said manual operating handle (50) being directly or indirectly connected to one end of said switch for the resetting of said switch.

3. The accumulator according to claim 1, characterized in that the electronic controller (30) is a battery management system.

4. The battery of claim 1, further comprising an electromagnet or motor.

5. The accumulator according to claim 4, characterized in that said electromagnet or motor is integral or separate from said switch (40).

6. The accumulator according to claim 4, characterized in that the electronic controller (30) is connected to the electromagnet or motor, the electronic controller (30) driving the electromagnet or motor to close or open the switch (40).

7. Accumulator according to claim 1, characterized in that said switch (40) is a single-or double-break switch.

8. The accumulator according to claim 1, characterized in that the access wires of the switch (40) are hard conductors or/and flexible wires.

9. The accumulator according to claim 1, characterized in that the switch (40) is a cartridge switch comprising a movable contact, an electromagnet or an electric motor, the movable contact being arranged at the actuation output of the electromagnet or the electric motor.

10. The accumulator according to claim 9, characterized in that the cover plate (11) is provided with a manual operating handle (50), the manual operating handle (50) being connected to a manual action input of the electromagnet or motor.

11. Accumulator according to claim 1, characterized in that said switch (40) is screwed or glued or snap-connected to said cover (11) or/and to said base.

12. Accumulator according to claim 1, characterized in that said switch (40) is screwed or welded or snap-fitted on said electronic controller (30).