CN210805862U

CN210805862U - BMS protection shield is used in battery high temperature protection

Info

Publication number: CN210805862U
Application number: CN201921744351.8U
Authority: CN
Inventors: 王高玉
Original assignee: Anhui Yangneng New Energy Technology Co Ltd
Current assignee: Anhui Yangneng New Energy Technology Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-06-19
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a BMS protection shield for battery high temperature protection belongs to BMS protection shield technical field, including installing the protection circuit board on the battery box and installing inside radiator fan and the temperature sensor of battery box, the battery is still installed to the inside of battery box, radiator fan through first connecting wire with protection circuit board electrical property interconnection, temperature sensor be equipped with a plurality ofly respectively through the second connecting wire with protection circuit board electrical property interconnection, the both ends of battery box form horizontal wind channel, the top installation case lid of battery box, protection circuit board installs the top of case lid, temperature sensor evenly distributed paste dress in the surface of battery, temperature sensor include the casing and the rubber suction cup of installation on the casing. Can install each position on battery surface at will through sucking disc formula temperature sensor, be connected conveniently between temperature sensor and the protection circuit board moreover.

Description

BMS protection shield is used in battery high temperature protection

Technical Field

The utility model relates to a BMS protection shield technical field, in particular to BMS protection shield is used in battery high temperature protection.

Background

The development of science and technology and the improvement of the quality of life of human beings, petroleum resources face crisis and the ecological environment of the earth is increasingly worsened, and the dual social background of rapid development of science and technology and industry in the field of novel secondary batteries and related materials is formed. The urgent need of the market makes the new secondary battery come into play. Among them, high-energy nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, maintenance-free lead-acid batteries, lead-cloth batteries, lithium ion batteries, lithium polymer batteries, and other novel secondary batteries are gaining favor, and are widely used in china, forming an industry and rapidly developing.

When the battery is used, the battery needs to be monitored in all directions through a BMS protection board, namely a battery management system, which is a link between the battery and a user, and the main object of the battery is a secondary battery. The purpose is to improve the utilization rate of the battery, prevent the battery from being overcharged and overdischarged, prolong the service life of the battery and monitor the state of the battery. As battery management systems have evolved, other functions have also been added.

The battery can produce the heat in work, the work that does not stop when the heat is more and more high can produce the incident, traditional BMS protection shield generally all has temperature monitoring equipment and connects radiator fan to dispel the heat, but the temperature sensor that the monitoring temperature was used generally fixes inside the battery box, inconvenient distribution is in each position on battery surface, temperature monitoring is not comprehensive, and traditional BMS board can directly cut off the working circuit of battery when the high temperature, can lead to the consumer to stop work in the twinkling of an eye like this, damage equipment, and safety inadequately.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is lower just in order to solve above-mentioned BMS protection shield temperature monitoring accuracy, directly cut off the problem that the potential safety hazard easily appears in the circuit and provide a BMS protection shield for battery high temperature protection, it is convenient to have temperature sensor to connect, installation that can be convenient at will, temperature monitoring is more accurate, and it is delayed occasionally to open circuit, the better advantage of security.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a BMS protection shield is used in battery high temperature protection, including installing the protection circuit board on the battery box and installing inside radiator fan and the temperature sensor of battery box, the battery is still installed to the inside of battery box, radiator fan through first connecting wire with protection circuit board electrical property interconnection, temperature sensor be equipped with a plurality ofly respectively through the second connecting wire with protection circuit board electrical property interconnection, radiator fan fixes the both ends of battery box form horizontal wind channel, the top installation case lid of battery box, protection circuit board installs the top of case lid, the dress is pasted in the temperature sensor evenly distributed the surface of battery, temperature sensor include the casing and the rubber suction cup of installation on the casing.

Preferably, the protection circuit board is provided with a plurality of pin header connectors, and the first connecting wire and the second connecting wire are respectively provided with a socket and movably spliced with the pin header connectors through the sockets.

Preferably, still install the temperature sensing component on the casing, the rubber suction cup is horn type structure, and the temperature sensing component is located the inside of rubber suction cup.

Preferably, the protection circuit board is further integrated with a control module and a peripheral circuit, and the control module comprises an MCU control unit, a circuit breaker, an audible and visual alarm and a battery circuit.

Preferably, the battery circuit is connected in series with a working circuit of the storage battery, and the circuit breaker is connected with the MCU control unit and the battery circuit.

Preferably, the circuit breaker is also provided with a delay switch in parallel, and the delay switch is used for controlling the on-off of the circuit breaker in a delay manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the sucking disc type temperature sensor can be randomly installed at each position on the surface of the storage battery, the temperature sensor and the protection circuit board are conveniently connected, the cooling fan and the temperature sensor can be conveniently inserted into the pin header on the protection circuit board through the second connecting wire, and the expansibility is good.

2. Through setting up control module on protection circuit board, the last circuit breaker that installs of control module, can cut off the working current of battery, when the high temperature, through cutting off the electric current protection battery not damaged, a delay switch that still connects in parallel on the circuit breaker avoids the temperature to exceed the setting value, and the battery cuts off the power supply directly, and after the temperature transfinites, audible-visual annunciator reported to the police, the working current of battery is cut off again after delay switch waits for a certain time, avoids direct outage to appear the incident like this.

Drawings

Fig. 1 is the utility model discloses a BMS protection shield mounting structure schematic diagram.

Fig. 2 is a schematic view of the connection structure of the heat dissipation fan and the temperature sensor of the present invention.

Fig. 3 is a schematic structural diagram of the temperature sensor of the present invention.

Fig. 4 is a schematic diagram of the principle structure of the control module of the present invention.

In the figure: 1. the battery box, 2, case lid, 3, protection circuit board, 4, radiator fan, 5, battery, 6, row's pin joint, 7, first connecting wire, 8, second connecting wire, 9, socket, 10, temperature sensor, 11, casing, 12, temperature-sensing element, 13, rubber suction cup.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a BMS protection board for high temperature protection of a battery, a protection circuit board 3 mounted on a battery case 1, and a heat dissipation fan 4 and a temperature sensor 10 mounted inside the battery case 1, a battery 5 is further mounted inside the battery case 1, the heat dissipation fan 4 is electrically interconnected with the protection circuit board 3 through a first connection wire 7, the temperature sensor 10 is provided with a plurality of heat dissipation fans 8 electrically interconnected with the protection circuit board 3 through second connection wires 8, the heat dissipation fans 4 are fixed at both ends of the battery case 1 to form a transverse air duct, a case cover 2 is mounted on the top of the battery case 1, the protection circuit board 3 is mounted on the top of the case cover 2, the temperature sensors 10 are uniformly distributed and attached on the surface of the battery 5, the temperature sensor 10 includes a housing 11 and rubber suckers 13 mounted on the housing 11, the heat dissipation fans 4 are symmetrically mounted, can dispel the heat to battery 5, temperature sensor 10 is equipped with a plurality of distributions on battery 5's surface, carry out temperature monitoring to each region, temperature sensor 10 can increase at will and reduce, only need to increase and decrease the temperature sensor 10 of connecting on the protection circuit board 3 through pulling out and inserting second connecting wire 8, and protection circuit board 3 sets up on case lid 2, can not receive the temperature influence of 1 inside of battery box, be equipped with a plurality of row pin joint 6 on the protection circuit board 3, all install socket 9 on first connecting wire 7 and the second connecting wire 8, peg graft with row pin joint 6 activity through socket 9, socket 9 inserts row pin joint 6 and realizes the electric connection of first connecting wire 7 and second connecting wire 8 and protection circuit board 3.

The shell 11 is also provided with a temperature sensing element 12, the rubber sucker 13 is of a horn structure, the temperature sensing element 12 is positioned inside the rubber sucker 13, the temperature sensor 10 is fixed in a sucker type, the rubber sucker 13 is attached to the surface of the storage battery 5, the surface of the storage battery 5 is smooth, the rubber sucker 13 can be tightly sucked on the surface of the storage battery 5 by pressing, the temperature sensing element 12 is close to the surface of the storage battery 5 to monitor the temperature condition, a control module and a peripheral circuit are further integrated on the protection circuit board 3, the control module comprises an MCU control unit, a circuit breaker, an audible and visual alarm and a battery circuit, the audible and visual alarm plays a role of warning a user when the temperature is too high, the MCU control unit respectively controls the temperature sensor 10 and the cooling fan 4 to work, the battery circuit is connected in series with the working circuit of the storage battery 5, the circuit breaker is connected with the MCU control unit and, the circuit breaker is used for controlling the on-off of the circuit breaker in a delayed mode, the temperature upper limit value of the temperature sensor 10 is set on the MCU control unit, when the upper limit exceeds normal temperature, the MCU control unit disconnects the circuit breaker to start the audible and visual alarm to give an alarm, and the delay switch is not immediately closed, so that the storage battery 5 still works for a period of time, and the storage battery 5 is well protected when the storage battery 5 stops working until the delay switch is closed.

The setting of the upper temperature limit by the MCU control unit belongs to the common technology of temperature control systems, and the temperature sensor 10, the circuit breaker and the time delay switch all belong to common equipment on the market, so the working principle and the internal structure are not described in detail in the text.

The utility model discloses a theory of operation: inhale temperature sensor 10 on the surface of battery 5, battery 5 is installed inside battery box 1 with radiator fan 4, protection circuit board 3 is fixed on case lid 2, the temperature that temperature sensor 10 detected is sent for MCU the control unit, in case the temperature exceeds the setting value, then MCU the control unit opens audible-visual annunciator and reports to the police, then the circuit breaker breaks off, battery 5 can also work when certain this moment, close until delay switch, guarantee effectively that battery 5 can close and can not close immediately with high temperature, and the security is better.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a BMS protection shield is used in protection of battery high temperature, is including installing protection circuit board (3) on battery box (1) and installing radiator fan (4) and temperature sensor (10) inside battery box (1), battery (5), its characterized in that are still installed to the inside of battery box (1): radiator fan (4) through first connecting wire (7) with protection circuit board (3) electrical property interconnection, temperature sensor (10) be equipped with a plurality ofly respectively through second connecting wire (8) with protection circuit board (3) electrical property interconnection, radiator fan (4) are fixed the both ends of battery box (1) form horizontal wind channel, the top installation case lid (2) of battery box (1), protection circuit board (3) are installed the top of case lid (2), temperature sensor (10) evenly distributed paste the dress and are in the surface of battery (5), temperature sensor (10) include casing (11) and rubber suction cup (13) of installation on casing (11).

2. The BMS protective plate for high temperature protection of a battery according to claim 1, wherein: the protection circuit board (3) is provided with a plurality of pin header connectors (6), the first connecting line (7) and the second connecting line (8) are respectively provided with a socket (9), and the socket (9) is movably connected with the pin header connectors (6).

3. The BMS protective plate for high temperature protection of a battery according to claim 1, wherein: still install temperature sensing element (12) on casing (11), rubber suction cup (13) are horn type structure, and temperature sensing element (12) are located the inside of rubber suction cup (13).

4. The BMS protective plate for high temperature protection of a battery according to claim 1, wherein: and the protection circuit board (3) is further integrated with a control module and a peripheral circuit, and the control module comprises an MCU (microprogrammed control Unit), a circuit breaker, an audible and visual alarm and a battery circuit.

5. The BMS protective plate for high temperature protection of a battery according to claim 4, wherein: the battery circuit is connected in series on the working circuit of the storage battery (5), and the circuit breaker is connected with the MCU control unit and the battery circuit.

6. The BMS protective plate for high temperature protection of a battery according to claim 5, wherein: the circuit breaker is also provided with a delay switch in parallel for controlling the on-off of the circuit breaker in a delay way.