阅读说明：本技术 电池电源设备 (Battery power supply apparatus ) 是由 伍俊 魏兴战 史浩飞 于乐泳 于 2020-12-11 设计创作，主要内容包括：本发明提供一种电池电源设备,把多节电池设置成两个相互独立的串联电池结构后,通过设置在取电平面的四个象限内且相邻象限内的电连接极性不同的四个第一取电片,以及一侧设有两个第二取电片、另外一侧设有一个连接片的公头的结构设计,能配合实现正插和反插取电,使用方便,不会因为电池极性的连接错误导致设备或人身安全问题；电池电源设备还包括剩余电量显示模块,剩余电量显示模块能让使用者对电池电源设备的剩余电量情况有比较直观的判断,剩余电量不足时能及时更换电池,可避免由于电量不足而造成的目标设备无法正常工作的情况；该电池电源设备可以广泛应用于如手术器械、玩具、电动工具等场合。(The invention provides a battery power supply device, which is characterized in that after a plurality of batteries are arranged into two mutually independent series battery structures, through the structural design of four first power taking sheets which are arranged in four quadrants of a power taking plane and have different electric connection polarities in adjacent quadrants, and a male head which is provided with two second power taking sheets on one side and a connecting sheet on the other side, the positive insertion and the reverse insertion of power can be realized in a matched manner, the use is convenient, and the problem of equipment or personal safety caused by the connection error of the battery polarity can be avoided; the battery power supply equipment also comprises a residual electric quantity display module, the residual electric quantity display module can enable a user to visually judge the residual electric quantity condition of the battery power supply equipment, and the battery can be replaced in time when the residual electric quantity is insufficient, so that the condition that the target equipment cannot normally work due to insufficient electric quantity can be avoided; the battery power supply equipment can be widely applied to occasions such as surgical instruments, toys, electric tools and the like.)

1. A battery power supply apparatus, comprising:

the base is internally provided with a first series battery structure and a second series battery structure which are mutually independent;

and the male connector is matched with the base to positively or negatively insert electricity to serially connect the first series battery structure and the second series battery structure to form a series battery pack, and the positive electrode and the negative electrode of the series battery pack are led out.

2. The battery power supply device according to claim 1, wherein the first series battery structure and the second series battery structure are respectively externally powered by two first power taking sheets, the four first power taking sheets are correspondingly arranged in four quadrants of a power taking plane one by one, and the electrical connection polarities of the first power taking sheets in adjacent quadrants are different.

3. The battery power supply equipment as claimed in claim 2, wherein one side of the male head is provided with two second power taking sheets, the other side is provided with a connecting sheet, the two second power taking sheets are separately arranged in two adjacent quadrants in the power taking plane, and the connecting sheet crosses the other two quadrants of the power taking plane; when the male connector is matched with the base to insert or reversely insert electricity, the connecting sheet is simultaneously electrically connected with the two first electricity taking sheets to be connected in series with the first series battery structure and the second series battery structure to form the series battery pack, and the two second electricity taking sheets are electrically connected with the other two first electricity taking sheets in a one-to-one correspondence manner to draw out the positive electrode and the negative electrode of the series battery pack.

4. The battery power supply equipment according to claim 3, wherein the base comprises a base body, four cavities are arranged in the base body, the four cavities are distributed in four quadrants of the power taking plane in a one-to-one correspondence manner, N batteries are arranged in each cavity, and N is an integer greater than or equal to 1.

5. The battery power apparatus of claim 4, wherein the chamber has a front opening and a rear opening; the base further comprises four first electricity taking sheets and four front end quincunx-shaped elastic sheets, the four first electricity taking sheets are arranged on the base body and distributed in four quadrants of the electricity taking plane in a one-to-one correspondence mode, the four first electricity taking sheets are respectively electrically connected with the four front end quincunx-shaped elastic sheets in a one-to-one correspondence mode, and the four front end quincunx-shaped elastic sheets are arranged at the opening of the front end of the cavity in a one-to-one correspondence mode.

6. The battery power supply apparatus of claim 5, wherein the base further comprises a rear cover, two conductive pieces and four rear-end quincunx-shaped elastic pieces, wherein the two conductive pieces are disposed on the rear cover, two ends of each conductive piece are respectively provided with one rear-end quincunx-shaped elastic piece, the four rear-end quincunx-shaped elastic pieces are distributed in four quadrants of the power-taking plane in a one-to-one correspondence manner, and the four rear-end quincunx-shaped elastic pieces are disposed in a one-to-one correspondence manner with rear-end openings of the four chambers.

7. The battery power supply apparatus of claim 6, wherein the base further comprises a front cover, wherein a center of the front cover is provided with the plug hole of the male connector, and a periphery of the plug hole is provided with the polarity indication of the series battery pack.

8. The battery power supply equipment as claimed in claim 7, wherein the front cover is clamped with the front end of the base body, and the jack is arranged corresponding to a hole formed by the four first power taking sheets in the power taking plane.

9. The battery power supply apparatus of claim 8, wherein in the voltage-drawing plane, the first power-drawing tab in a first quadrant is electrically connected to a negative electrode of the first series battery structure, the first power-drawing tab in a second quadrant is electrically connected to a positive electrode of the second series battery structure, the first power-drawing tab in a third quadrant is electrically connected to a negative electrode of the second series battery structure, and the first power-drawing tab in a fourth quadrant is electrically connected to a positive electrode of the first series battery structure.

10. The battery power supply device according to claim 9, further comprising a remaining power display module, wherein the remaining power display module is of an on-board structure, the remaining power display module is provided with a detection circuit, the detection circuit comprises a plurality of indicator lights, and a through hole corresponding to the jack is formed in the center of the remaining power display module.

Technical Field

The invention relates to the technical field of batteries, in particular to a battery power supply device.

Background

The series battery pack is widely applied in daily life and industrial production, but the general battery pack has a positive pole and a negative pole, if the battery pack is connected reversely by accident, the battery pack cannot normally supply power, and even target equipment can be damaged under severe conditions.

Therefore, a series battery power supply supporting forward and reverse insertion (blind insertion) functions is needed.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an interface solution for a series battery power supply, which is used to solve the above-mentioned technical problems.

To achieve the above and other related objects, the present invention provides a battery power supply apparatus comprising:

the base is internally provided with a first series battery structure and a second series battery structure which are mutually independent;

and the male connector is matched with the base to positively or negatively insert electricity to serially connect the first series battery structure and the second series battery structure to form a series battery pack, and the positive electrode and the negative electrode of the series battery pack are led out.

Optionally, the first series battery structure and the second series battery structure are respectively powered externally through two first power taking sheets, four first power taking sheets are correspondingly arranged in four quadrants of a power taking plane one by one, and the electrical connection polarities of the first power taking sheets in adjacent quadrants are different.

Optionally, one side of the male head is provided with two second power taking sheets, the other side of the male head is provided with a connecting sheet, the two second power taking sheets are separately arranged in two adjacent quadrants in the power taking plane, and the connecting sheet crosses the other two quadrants of the power taking plane; when the male connector is matched with the base to insert or reversely insert electricity, the connecting sheet is simultaneously electrically connected with the two first electricity taking sheets to be connected in series with the first series battery structure and the second series battery structure to form the series battery pack, and the two second electricity taking sheets are electrically connected with the other two first electricity taking sheets in a one-to-one correspondence manner to draw out the positive electrode and the negative electrode of the series battery pack.

Optionally, the base includes a base body, four cavities are arranged in the base body, the four cavities are distributed in four quadrants of the power taking plane in a one-to-one correspondence manner, and each cavity is internally provided with N cells, where N is an integer greater than or equal to 1.

Optionally, the chamber has a front end opening and a rear end opening; the base further comprises four first electricity taking sheets and four front end quincunx-shaped elastic sheets, the four first electricity taking sheets are arranged on the base body and distributed in four quadrants of the electricity taking plane in a one-to-one correspondence mode, the four first electricity taking sheets are respectively electrically connected with the four front end quincunx-shaped elastic sheets in a one-to-one correspondence mode, and the four front end quincunx-shaped elastic sheets are arranged at the opening of the front end of the cavity in a one-to-one correspondence mode.

Optionally, the base further comprises a rear cover, two conducting strips and four rear-end quincunx-shaped elastic pieces, the two conducting strips are arranged on the rear cover, two ends of each conducting strip are respectively provided with one rear-end quincunx-shaped elastic piece, the four rear-end quincunx-shaped elastic pieces are distributed in four quadrants of the power taking plane in a one-to-one correspondence manner, and the four rear-end quincunx-shaped elastic pieces and the four rear-end openings of the cavity are arranged in a one-to-one correspondence manner.

Optionally, the base further includes a front cover, the center of the front cover is provided with the jack of the male connector, and the periphery of the jack is provided with the polarity indication of the series battery pack.

Optionally, the front cover is clamped to the front end of the base body, and the jacks are arranged corresponding to the holes formed by the four first power taking sheets in the power taking plane.

Optionally, in the power taking plane, the first power taking sheet in a first quadrant is electrically connected to a negative electrode of the first series battery structure, the first power taking sheet in a second quadrant is electrically connected to a positive electrode of the second series battery structure, the first power taking sheet in a third quadrant is electrically connected to a negative electrode of the second series battery structure, and the first power taking sheet in a fourth quadrant is electrically connected to a positive electrode of the first series battery structure.

Optionally, the battery power supply device further includes a remaining power display module, the remaining power display module is of an onboard structure, the remaining power display module is provided with a detection circuit, the detection circuit includes a plurality of indicator lights, and a through hole corresponding to the jack is formed in the center of the remaining power display module.

As described above, the battery power supply apparatus of the present invention has the following advantageous effects:

after two mutually independent series battery structures are arranged in the base, electricity is obtained through positive insertion or negative insertion of the male connector, the first series battery structure and the second series battery structure are connected in series to form a series battery pack, and the positive and negative electrodes of the series battery pack are led out.

Drawings

Fig. 1 is a schematic structural diagram of a battery power supply apparatus according to an embodiment of the invention.

Fig. 2 is a schematic diagram illustrating a connection of series-connected battery packs according to an embodiment of the invention.

Fig. 3 is a schematic diagram illustrating a positive power-on and power-off of a battery power supply apparatus according to an embodiment of the invention.

Fig. 4 is a schematic diagram illustrating reverse power-on and power-off of a battery power supply apparatus according to an embodiment of the invention.

Fig. 5 is a schematic view illustrating the connection of series-connected battery packs according to a second embodiment of the present invention.

Fig. 6 is a schematic diagram illustrating a positive power-on and power-off of the battery power supply apparatus according to the second embodiment of the present invention.

Fig. 7 is a schematic diagram illustrating reverse power-on and power-off of the battery power supply apparatus according to the second embodiment of the present invention.

Fig. 8 is a schematic view showing the connection of series-connected battery packs according to a third embodiment of the present invention.

Description of the reference numerals

00-battery, 1-base, 2-male head, 3-residual capacity display module, 10-base body, 11-first electricity taking piece, 12-front end quincunx elastic piece, 13-rear cover, 14-conducting piece, 15-rear end quincunx elastic piece, 16-front cover, 17-light guide piece, 20-second electricity taking piece, 21-connecting piece and 30-indicator light.

Detailed Description

The inventor researches and discovers that: when the series battery pack supplies power, the serial battery pack generally has a positive pole and a negative pole, if the serial battery pack is connected reversely carelessly, the serial battery pack cannot supply power normally, and the serial battery pack can cause damage to target equipment or personal safety accidents.

Based on this, the invention provides a technical scheme for supporting the power supply of a series battery pack with positive and negative insertion, which comprises the following steps: dividing all batteries into two series battery structures, respectively leading out the positive and negative poles of the two series battery structures, and then cooperatively taking electricity through a male head with two electricity taking sheets arranged on one side and a connecting sheet arranged on the other side, wherein the connecting sheet electrically connects the two series battery structures together to form a series battery pack, and the two electricity taking sheets lead out the positive and negative poles of the series battery pack; the positive and negative electrodes of the two series battery structures are led out through four electricity taking sheets which are arranged in four quadrants of the electricity taking plane and are different in electric connection polarity in adjacent quadrants, and positive and negative insertion can be realized by matching with the structural design of a male head.

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.

Please refer to fig. 1-8. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the drawings only show the electronic components related to the present invention rather than being drawn according to the type, number and layout of the components in actual implementation, and the type, number and layout of each electronic component in actual implementation may be changed randomly, and the layout type may be more complicated. The structural form, number and layout of the electronic components shown in the drawings attached to this specification are only used for matching the content disclosed in the specification, so that those skilled in the art can understand and read the electronic components, and do not limit the limitation conditions that the present invention can be implemented, so that the electronic components do not have the essential technical significance. In addition, the terms "first" and "second" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship therebetween may be regarded as the scope of the present invention without substantial technical changes.

In detail, as shown in fig. 1, the present invention provides a battery power supply apparatus including:

the battery pack comprises a base 1, a battery pack and a battery pack, wherein a first series battery structure and a second series battery structure which are independent from each other are arranged in the base 1;

the male head 2 is matched with the base 1 to insert or reversely insert electricity to be connected with the first series battery structure and the second series battery structure in series to form a series battery pack, and the anode and the cathode of the series battery pack are led out.

Example one

In detail, as shown in fig. 1-2, a plurality of batteries 00 are installed in a base 1, a part of the batteries 00 are sequentially connected in series to form a first series battery structure, the first series battery structure supplies power to the outside through two first power taking sheets 11, the other part of the batteries are sequentially connected in series to form a second series battery structure, the second series battery structure supplies power to the outside through the other two first power taking sheets 11, the four first power taking sheets 11 are correspondingly arranged in four quadrants of a power taking plane (i.e., a plane perpendicular to the axial direction of the batteries 00 shown in fig. 1, i.e., an XY plane shown in fig. 2), and the first power taking sheets 11 in adjacent quadrants are different in electrical connection polarity.

In detail, as shown in fig. 1, one side of the male head 2 is provided with two second power taking sheets 20, the other side is provided with a connecting sheet 21, the two second power taking sheets 20 are separately arranged in two adjacent quadrants in the power taking plane, and the connecting sheet 21 crosses the other two quadrants of the power taking plane; when the male head 2 is matched with the base 1 to insert or reversely insert electricity, the connecting sheet 21 is simultaneously electrically connected with the two first electricity taking sheets 11 to serially connect the first serial battery structure and the second serial battery structure to form a serial battery pack, and the two second electricity taking sheets 20 are electrically connected with the other two first electricity taking sheets 11 in a one-to-one correspondence manner to lead out the positive and negative poles of the serial battery pack.

In more detail, as shown in fig. 1, the base 1 includes a base body 10, four cavities are provided in the base body 10, the four cavities are distributed in four quadrants of a power-taking plane (XY plane shown in fig. 2) in a one-to-one correspondence manner, each cavity has a front end opening and a rear end opening, and 1 battery is provided in each cavity.

In more detail, as shown in fig. 1-2, the base 1 further includes four first power-taking sheets 11 and four front-end quincunx-shaped elastic sheets 12, the four first power-taking sheets 11 are disposed on the base body 10 and distributed in four quadrants of a power-taking plane (XY plane shown in fig. 2) in a one-to-one correspondence manner, the four first power-taking sheets 11 are respectively electrically connected with the four front-end quincunx-shaped elastic sheets 12 in a one-to-one correspondence manner, and the four front-end quincunx-shaped elastic sheets 12 are disposed at front-end openings of the four chambers in a one-to-one correspondence manner.

In more detail, as shown in fig. 1, the base 1 further includes a rear cover 13, two conducting strips 14 and four rear-end quincunx elastic pieces 15, the two conducting strips 14 are disposed on the rear cover 13, two ends of each conducting strip 14 are respectively provided with one rear-end quincunx elastic piece 15, the four rear-end quincunx elastic pieces 15 are distributed in four quadrants of the power-taking plane in a one-to-one correspondence manner, and the four rear-end quincunx elastic pieces 15 are disposed in one-to-one correspondence with rear-end openings of the four chambers.

The rear cover 13 is clamped with the rear end of the base body 10, the rear cover 13 is detachably connected with the base body 10, when the battery 00 needs to be replaced, the rear cover 13 can be taken down, and then the battery 00 in the base body 10 can be taken out from the rear end opening of each cavity; through the two rear-end quincunx-shaped elastic pieces 15, each conducting piece 14 is simultaneously and electrically connected with the batteries 00 in the chambers in two adjacent quadrants in the power taking plane (XY plane shown in figure 2), and the batteries 00 of 2 are sequentially connected in series to form a series battery structure.

In more detail, as shown in fig. 1, the base 1 further includes a front cover 16, the center of the front cover 16 is provided with a jack of the male connector 2, and a polarity indication of the series battery pack is provided around the jack; the front cover 16 is clamped with the front end of the base body 10, and the jacks are arranged corresponding to holes formed by surrounding the four first power taking sheets 11 in the power taking plane.

In more detail, as shown in fig. 1, in the axial direction of the battery 00, the shape and size of the male tab 2 correspond to the holes and the holes surrounded by the four first power-taking pieces 11 in the power-taking plane; public head 2's one side is equipped with two second electricity taking pieces 20 that separate each other and parallel arrangement, and one side is equipped with a wider connection piece 21 in addition, and two second electricity taking pieces 20 separately set up in getting two adjacent quadrants in the plane, and connection piece 21 then spanes two other quadrants of getting the plane.

As shown in fig. 1-2, after 1 battery 00 is respectively installed in each chamber of the base body 10, the rear cover 13 is covered, the batteries 00 in two chambers with opposite polarities at the rear end opening are electrically connected through a conducting strip 14 to form a series battery structure composed of 2 batteries 00, so that the 4 batteries 00 are divided into two series battery structures composed of 2 batteries 00 through the two conducting strips 14, the battery 00 in the first quadrant and the battery 00 in the fourth quadrant form a first series battery structure, the battery 00 in the second quadrant and the battery 00 in the third quadrant form a second series battery structure, positive and negative poles of the two series battery structures are led out through four first power taking strips 11 which are arranged in the four quadrants of the power taking plane and have different electrical connection polarities in the adjacent quadrants, the first power taking strip 11 in the first quadrant is electrically connected with the negative pole of the first series battery structure, the first power taking sheet 11 in the second quadrant is electrically connected with the positive electrode of the second series battery structure, the first power taking sheet 11 in the third quadrant is electrically connected with the negative electrode of the second series battery structure, and the first power taking sheet 11 in the fourth quadrant is electrically connected with the positive electrode of the first series battery structure; and then the front cover 16 is covered for shielding protection, and the electrodes of the two series battery structures are led out only through the jack reserved in the middle position and the male head 2.

Further, the working principle that the male head 2 is matched with the base 1 to carry out forward insertion or backward insertion for electricity taking is as follows:

as shown in fig. 1-2, in the power-taking plane (XY plane shown in fig. 2), the first power-taking plate 11 in the first three-quadrant is electrically connected with the negative electrode all the time, and the first power-taking plate 11 in the second four-quadrant is electrically connected with the positive electrode all the time; as shown in fig. 3, when the male 2 is inserted into the jack to take power, the first power-taking plate 11 in the three-four quadrants is short-circuited through the connecting plate 21 on the male 2, and the batteries 00 in the four quadrants are sequentially connected in series to form a series battery pack, in the connection mode shown in fig. 1-2, the output of the first power-taking plate 11 in the first quadrant is the negative electrode of the series battery pack, the output of the first power-taking plate 11 in the second quadrant is the positive electrode of the series battery pack, that is, the second power-taking plate 20 on the left side of the male 2 in fig. 3 is connected with the positive electrode, and the second power-taking plate 20 on the right side is connected with the negative electrode; as shown in fig. 4, when the male connector 2 is reversely inserted into the jack to take power, the first power-taking plate 11 in the second quadrant is short-circuited through the connecting plate 21 on the male connector 2, the batteries 00 in the four quadrants are sequentially connected in series to form a series battery pack, in the connection mode shown in fig. 1-2, the output of the first power-taking plate 11 in the third quadrant is the negative electrode of the series battery pack, the output of the first power-taking plate 11 in the fourth quadrant is the positive electrode of the series battery pack, that is, the second power-taking plate 20 on the right side of the male connector 2 in fig. 4 is connected to the positive electrode, and the second power-taking plate 20 on the left side of the male connector 2 is connected to the negative electrode.

In detail, as shown in fig. 1, the battery power supply device further includes a remaining power display module 3, the remaining power display module 3 is of an onboard structure, the remaining power display module 3 is provided with a detection circuit, the detection circuit includes electronic components such as a capacitor, a resistor, a comparator and an indicator lamp 30, and a through hole corresponding to the jack is formed in the center of the remaining power display module 3.

In more detail, as shown in fig. 1, the remaining power display module 3 is clamped between the front cover 16 and the front end of the base body 10, and benefits from the polarity of the power supply fixed on the base body 10, when the male plug 2 cooperates with the base 1 to perform positive and negative insertion electricity taking, the remaining power display module 3 is electrically connected with the series battery pack, detects the remaining power of the series battery pack, and displays the remaining power through the plurality of indicator lights 30; one side of the front cover 16 is provided with a light guide 17 corresponding to the indicator lamp 30.

In an optional embodiment of the present invention, the remaining power display module 3 compares the voltage of the series battery pack with a plurality of linear and equal-proportion reference voltages with different magnitudes, and then displays the voltages through the indicator lights 30 corresponding to each other, for example, 10 indicator lights 30 display the remaining power, and controls the on/off of 10 indicator lights 30 according to 10%, 20%, …, and 100% of the power of the series battery pack.

Example two

In the first embodiment, the conductive sheet 14 is vertically arranged (in the Y-axis direction in fig. 2), at this time, the positive electrode and the negative electrode of the serial battery structure formed by 2 batteries are also vertically distributed, and when power is taken from the side corresponding to the connection sheet 21 on the male tab 2, the battery structure needs to be inserted into the insertion hole along the horizontal direction.

It is understood that the conducting strips 14 may also be arranged horizontally (in the X-axis direction in fig. 5), and the positive and negative poles of the corresponding series battery structures are also distributed in the horizontal direction, as shown in fig. 5, the first power taking strip 11 in the first quadrant is electrically connected to the negative pole of the first series battery structure, the first power taking strip 11 in the second quadrant is electrically connected to the positive pole of the first series battery structure, the first power taking strip 11 in the third quadrant is electrically connected to the negative pole of the second series battery structure, and the first power taking strip 11 in the fourth quadrant is electrically connected to the positive pole of the second series battery structure; when one side of the connecting sheet 21 on the male head 2 is used for taking electricity, the connecting sheet is required to be inserted into the jack along the vertical direction.

In detail, at this time, the working principle that the male head 2 cooperates with the base 1 to carry out forward insertion or backward insertion for electricity supply is as follows:

as shown in fig. 5, in the power-taking plane (XY plane shown in fig. 5), the first power-taking plate 11 in the first three-quadrant is electrically connected with the negative electrode all the time, and the first power-taking plate 11 in the second four-quadrant is electrically connected with the positive electrode all the time; as shown in fig. 6, when the male 2 is inserted into the jack to obtain power, the first power-taking plate 11 in a four-quadrant is short-circuited through the connecting plate 21 on the male 2, and the batteries 00 in the four quadrants are sequentially connected in series to form a series battery pack, in the connection mode shown in fig. 5, the output of the first power-taking plate 11 in a third quadrant is the negative electrode of the series battery pack, the output of the first power-taking plate 11 in a second quadrant is the positive electrode of the series battery pack, that is, the second power-taking plate 20 on the upper side in the male 2 in fig. 6 is connected with the positive electrode, and the second power-taking plate 20 on the lower side in the male 2 in fig. 6 is connected with the negative electrode; as shown in fig. 7, when the male connector 2 is reversely inserted into the jack to take power, the first power-taking strip 11 in the second and third quadrants is short-circuited through the connecting strip 21 on the male connector 2, and the batteries 00 in the four quadrants are sequentially connected in series to form a series battery pack, in the connection mode shown in fig. 5, the output of the first power-taking strip 11 in the first quadrant is the negative electrode of the series battery pack, the output of the first power-taking strip 11 in the fourth quadrant is the positive electrode of the series battery pack, that is, the second power-taking strip 20 on the lower side in the male connector 2 in fig. 7 is connected to the positive electrode, and the second power-taking strip 20 on the upper side in the male connector 2 in fig. 7 is connected.

EXAMPLE III

The drawings of the first embodiment and the second embodiment both show that only 1 battery 00 is respectively arranged in each chamber of the base body 10, and it can be understood that 2 or more than 2 batteries 00 can be respectively arranged in each chamber, and the batteries 00 in each chamber are sequentially connected in series. As shown in fig. 8, each chamber contains 2 batteries 00 connected in series.

In addition, in the power-taking plane (i.e. XY plane), the electrical connection polarity of the first power-taking plate 11 in the first three-quadrant can be changed into positive, and correspondingly, the electrical connection polarity of the first power-taking plate 11 in the second four-quadrant needs to be changed into negative; the arrangement direction (1 battery) or the series direction (a plurality of batteries 00) of the batteries 00 in each chamber needs to be adjusted.

In summary, in the battery power supply device provided by the invention, after two mutually independent series battery structures are arranged in the base, through the structural design of four first power taking pieces which are arranged in four quadrants of the power taking plane and have different electric connection polarities in adjacent quadrants, and a male head which is provided with two second power taking pieces on one side and a connecting piece on the other side, the positive insertion and the reverse insertion of the battery power supply device can be realized in a matched manner, the use is very convenient, and the problem of device or personal safety caused by the connection error of the battery polarity can be avoided; the battery power supply equipment also comprises a residual electric quantity display module, the residual electric quantity display module can enable a user to visually judge the residual electric quantity condition of the battery power supply equipment, and the battery can be replaced in time when the residual electric quantity is insufficient, so that the condition that the target equipment cannot normally work due to insufficient electric quantity can be avoided; based on the battery power supply device supporting positive and negative insertion and having the electric quantity display function, the battery power supply device can be widely applied to occasions such as surgical instruments, toys, electric tools and the like.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.