阅读说明：本技术 一种矿用可更换电池组的安全保护装置 (Safety protection device of mining removable group battery ) 是由 林引 刘亚辉 郭江涛 于庆 张金豪 周代勇 邵严 任高建 贺奎 赵光绪 胡亮 于 2021-09-22 设计创作，主要内容包括：本发明涉及一种矿用可更换电池组的安全保护装置,属于电气防爆领域,包括密封外壳,设置在所述密封外壳内的电池组、继电器组件、第一可靠电阻、双重二极管、保险丝、防反充二极管和可靠电阻排；所述电池组的正极依次串联保险丝和继电器组件,并引出密封外壳,所述电池组的负极直接引出密封外壳；所述防反充二极管与电池组、保险丝并联；所述双重二极管和第一可靠电阻分别与所述继电器组件并联；所述继电器组件内设有引出密封外壳的控制开关；所述可靠电阻排连接在电池组内的各单体电池之间,并引出密封外壳。本方案保障可更换电池组的安全性、降低隔爆型电源箱的体积以及提升电池组的使用效率,从而降低隔爆型电源箱的整体成本。(The invention relates to a safety protection device of a replaceable battery pack for a mine, belonging to the field of electrical explosion prevention and comprising a sealed shell, a battery pack, a relay assembly, a first reliable resistor, a double diode, a fuse, an anti-reverse charging diode and a reliable resistor bank, wherein the battery pack, the relay assembly, the first reliable resistor, the double diode, the fuse, the anti-reverse charging diode and the reliable resistor bank are arranged in the sealed shell; the positive electrode of the battery pack is sequentially connected with the fuse and the relay assembly in series and led out of the sealed shell, and the negative electrode of the battery pack is directly led out of the sealed shell; the anti-reverse charging diode is connected with the battery pack and the fuse in parallel; the double diode and the first reliable resistor are respectively connected with the relay assembly in parallel; a control switch leading out of the sealed shell is arranged in the relay assembly; the reliable resistor bank is connected among all the single batteries in the battery pack and led out of the sealed shell. The scheme ensures the safety of the replaceable battery pack, reduces the volume of the explosion-proof power box and improves the service efficiency of the battery pack, thereby reducing the overall cost of the explosion-proof power box.)

1. The utility model provides a safety arrangement of mining removable group battery which characterized in that: the battery pack protection circuit comprises a sealed shell, a battery pack, a relay assembly, a first reliable resistor, a double diode, a fuse, an anti-reverse-charging diode and a reliable resistor bank, wherein the battery pack, the relay assembly, the first reliable resistor, the double diode, the fuse, the anti-reverse-charging diode and the reliable resistor bank are arranged in the sealed shell; the positive electrode of the battery pack is sequentially connected with the fuse and the relay assembly in series and led out of the sealed shell, and the negative electrode of the battery pack is directly led out of the sealed shell; the anti-reverse charging diode is connected with the battery pack and the fuse in parallel; the double diode and the first reliable resistor are respectively connected with the relay assembly in parallel; a control switch leading out of the sealed shell is arranged in the relay assembly; the reliable resistor bank is connected among all the single batteries in the battery pack and led out of the sealed shell.

2. The safety arrangement for a mining replaceable battery pack according to claim 1, characterized in that: the positive pole of the anti-reverse charging diode is connected with the negative pole of the battery pack, and the negative pole of the anti-reverse charging diode is connected with the positive pole of the battery pack.

3. The safety arrangement for a mining replaceable battery pack according to claim 1, characterized in that: the dual diodes comprise two end-to-end diodes, the anodes of the diodes are connected with the anode outgoing line of the battery pack, and the cathodes of the diodes are connected with the fuse.

4. The safety arrangement for a mining replaceable battery pack according to claim 1, characterized in that: the relay assembly is controlled to be switched on and off through a control switch, the control switch is a knob switch, and a control input line of the knob switch is led out of the sealed shell.

5. The safety arrangement for a mining replaceable battery pack according to claim 1, characterized in that: the sealing shell is a potting shell sealed by epoxy resin.

Technical Field

The invention belongs to the field of electrical explosion prevention, and relates to a safety protection device of a replaceable battery pack for a mine.

Background

At present, most replaceable battery packs in an explosion-proof and intrinsically safe power box are protected in a mode of independent cavity division of the battery packs to ensure that the battery packs are in a safe state when a power supply is opened for wiring, however, the mode of independent cavity division is simple to realize, and the problems of large volume and high cost of the power box are caused at the same time; the adoption of the pure intrinsic safety processing mode can greatly reduce the service efficiency of the battery pack.

Disclosure of Invention

In view of the above, the present invention provides a safety protection device for a mining replaceable battery pack.

In order to achieve the purpose, the invention provides the following technical scheme:

a safety protection device of a replaceable battery pack for a mine comprises a sealed shell, and the battery pack, a relay assembly, a first reliable resistor, a double diode, a fuse, an anti-reverse charging diode and a reliable resistor bank which are arranged in the sealed shell; the positive electrode of the battery pack is sequentially connected with the fuse and the relay assembly in series and led out of the sealed shell, and the negative electrode of the battery pack is directly led out of the sealed shell; the anti-reverse charging diode is connected with the battery pack and the fuse in parallel; the double diode and the first reliable resistor are respectively connected with the relay assembly in parallel; a control switch leading out of the sealed shell is arranged in the relay assembly; the reliable resistor bank is connected among all the single batteries in the battery pack and led out of the sealed shell.

Further, the anode of the anti-reverse charging diode is connected with the cathode of the battery pack, and the cathode of the anti-reverse charging diode is connected with the anode of the battery pack.

Further, the dual diodes comprise two end-to-end diodes, the anodes of the dual diodes are connected with the anode outgoing line of the battery pack, and the cathodes of the dual diodes are connected with the fuse.

Furthermore, the on-off of the relay assembly is controlled by a control switch, the control switch is a knob switch, and a control input line of the knob switch is led out of the sealed shell.

Further, the sealed shell is a potting shell sealed by epoxy resin.

The invention has the beneficial effects that: this scheme adopts the group battery and increases the mode that the whole epoxy of combination was sealed after the safety arrangement combined together and adopted, the security of guarantee removable group battery, the volume that reduces flame-proof type power supply box and the availability factor that promotes the group battery to reduce flame-proof type power supply box's overall cost.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a safety protection device of a replaceable battery pack for a mine.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1, the safety protection device for a replaceable mining battery pack includes a sealed housing, a battery pack disposed in the sealed housing, a relay assembly, a first reliable resistor, a dual diode, a fuse, an anti-reverse charging diode, and a reliable resistor bank; the positive electrode of the battery pack is sequentially connected with the fuse and the relay assembly in series and led out of the sealed shell, and the negative electrode of the battery pack is directly led out of the sealed shell; the anti-reverse charging diode is connected with the battery pack and the fuse in parallel; the double diode and the first reliable resistor are respectively connected with the relay assembly in parallel; a control switch leading out of the sealed shell is arranged in the relay assembly; the reliable resistor bank is connected among all the single batteries in the battery pack and led out of the sealed shell.

In one embodiment, the anode of the anti-reverse charging diode is connected with the cathode of the battery pack, and the cathode of the anti-reverse charging diode is connected with the anode of the battery pack.

In another embodiment, the dual diodes include two end-to-end diodes with their anodes connected to the positive battery lead and their cathodes connected to a fuse.

Optionally, the relay assembly is controlled to be switched on and off by a control switch, the control switch is a knob switch, and a control input line of the knob switch is led out of the sealed shell.

Optionally, the sealed housing is a potting housing sealed by epoxy resin.

The scheme eliminates potential safety hazards existing in direct contact with underground explosive gas by integrally carrying out epoxy encapsulation on the battery pack and the protection device, detection signals directly led out of single batteries in the battery pack are directly led out after being subjected to local safety, and the power output of the battery pack consists of two parts, wherein the direct output of the local safety is realized, and the output of non-local safety is manually controlled and output by a user after the explosion-proof power box is closed. This scheme has carried out this ampere of processing with simple detection winding displacement and group battery power line. In the above embodiment, the power line of the battery pack is added with a relay control circuit, and the on or off of the relay is controlled by the state of the knob switch controlled by an external person. In the above embodiment, the power line of the battery pack is connected with the temperature fuse and the temperature switch in series, so that the encapsulation epoxy is prevented from being output when the encapsulation epoxy fails and overcurrent occurs. The scheme also damages the battery by reversely charging the battery pack in a mode of connecting the battery pack with the diode in parallel.

Before the power box shell is opened, the knob switch is in a closed state, the relay assembly is also in a closed state by a closing control signal, at the moment, the output energy of the battery is limited by the first reliable resistor and the reliable resistor bank through an external electric signal of the battery pack, so that the purpose of outputting intrinsic safety is achieved, the double diodes are used for ensuring the reliable charging of the battery pack, the anti-reverse charging diodes are used for protecting the battery pack, the fuse limits the charging and discharging current of the battery pack, so that the working current of the safety battery pack meets the requirements of manufacturers, and the failure of epoxy resin curing caused by overhigh internal working temperature is avoided; because the encapsulation shell is internally provided with the non-intrinsic safety circuit, the non-intrinsic safety circuit is completely isolated from the underground dangerous gas environment by the way of completely encapsulating the epoxy resin, so that the potential safety hazard is eliminated.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.