Lithium battery module with TYPE-C interface and charging indication and battery box

Abstract

The utility model discloses a lithium battery module with a TYPE-C interface and a charging indication function and a battery box. A circuit board is arranged above a battery pack and is electrically connected with the battery pack; the TYPE-C charging female seat is arranged above the circuit board and is electrically connected with the circuit board through a charging switching circuit board; the charging indication element is arranged above the circuit board and is electrically connected with the circuit board; the two battery supports are distributed on the two sides of the battery pack respectively, and hardware metal assemblies electrically connected with the positive electrode and the negative electrode of the battery pack are embedded in the battery supports; the outer ends of the two battery supports are jointly provided with an external conversion element electrically connected with the hardware metal assembly. According to the lithium battery module with the TYPE-C interface and the charging indication function and the battery box provided by the utility model, the DC charging female seat, the TYPE-C charging female seat and the charging indication function are arranged on the same plane, so that a consumer can more quickly identify a charging place, and meanwhile, the material of a circuit board is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery modules, in particular to a lithium battery module and a battery box with a TYPE-C interface and a charging indicator. Background Art

[0002] Nowadays, mobile electric tools are becoming more and more popular and are entering people's work and daily life. At the same time, more and more chargers and batteries are needed, and more and more products with TYPE-C charging interfaces are also emerging. In order to better improve convenience, compatibility, charging efficiency, and user experience, by unifying the TYPE-C charging interface, consumers will be able to purchase new electronic devices without new chargers, which will limit the number of chargers on the market or unused chargers and help reduce electronic waste.

[0003] The deficiencies of lithium battery module products on the market are as follows:

[0004] 1: A small part of the battery packs used in electric tools currently have both a DC charging port and a TYPE-C charging interface, but most of the DC charging female sockets and TYPE-C charging interfaces on them are not designed on the same plane, which is not convenient for consumers to more quickly and easily identify the charging interface, resulting in more laborious charging.

[0005] 2: Most of the battery packs used in electric tools currently are charged through a charger stand or DC charging, and there is no charging indicator on the battery. Consumers can only judge whether the charger is connected to the battery, whether it is charging, whether it is fully charged, etc. through the indicator light on the charger, resulting in not being very intuitive to understand the charging process of the battery.

[0006] 3: When the battery packs used in electric tools need to be charged, they all need to be removed from the electric tools for charging. Repeatedly plugging and unplugging the battery in this way increases the labor time and cannot achieve charging during work breaks.

[0007] Therefore, this application proposes a lithium battery module and a battery box with a TYPE-C interface and a charging indicator. Summary of the Utility Model

[0008] Based on this, in order to solve the above technical problems, it is necessary to provide a lithium battery module and a battery box with a TYPE-C interface and a charging indicator, which can design multiple charging interfaces on the same plane, making it convenient to quickly identify the charging interface, observe the charging status, and can also directly charge through magnetic attraction.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0010] A lithium battery module with a TYPE-C interface and charging indication, comprising:

[0011] A battery pack, with a circuit board disposed above it and electrically connected thereto;

[0012] A TYPE-C charging female socket, which is disposed above the circuit board and electrically connected thereto through a charging adapter circuit board;

[0013] A charging indication element, which is disposed above the circuit board and electrically connected thereto;

[0014] Two battery brackets, which are respectively distributed on both sides of the battery pack, and a hardware metal component electrically connected to the positive and negative electrodes of the battery pack is embedded on the battery bracket;

[0015] Wherein, an external conversion element electrically connected to the hardware metal component is commonly provided at the outer ends of the two battery brackets, and under the action of the external conversion element, the battery pack can be directly magnetically charged with an external power supply module.

[0016] Further, the battery pack includes several groups of batteries, and the multiple batteries are evenly distributed between the two battery brackets for installation and fixation;

[0017] Corresponding battery installation holes are provided on the battery bracket for the positive and negative electrodes of the battery, and the multiple batteries are embedded and installed on the battery bracket through the battery installation holes. Under the action of the battery installation holes, the positive and negative electrodes of several batteries can be exposed to the outside.

[0018] Further, installation embedding grooves for assembling the common hardware metal components are provided on both side surfaces of the two battery brackets;

[0019] The hardware metal component includes a metal sheet, and the metal sheet is embedded and installed on the battery bracket through the installation embedding groove and welded to the corresponding battery positive and negative electrodes. Under the action of the metal sheet, multiple corresponding batteries can be formed in series and parallel;

[0020] And a connection section is formed by the metal sheet extending towards the circuit board.

[0021] Further, the circuit board is fixedly installed with the battery bracket through the positioning posts at the top of the battery bracket, and the metal sheet is electrically connected to the corresponding circuit board above through the connection section;

[0022] The circuit board also has a DC charging female socket, and the DC charging female socket is electrically connected to the circuit board through the charging adapter circuit board;

[0023] Inside the circuit board, on the inner side of the DC charging female socket, there is also a spring clip charging component. Among them, the spring clip charging component includes a common charging and discharging metal spring sheet positive electrode, a charging metal spring sheet negative electrode, and a discharging metal spring sheet negative electrode. The metal spring sheet positive electrode, the charging metal spring sheet negative electrode, and the discharging metal spring sheet negative electrode are all electrically connected to the metal contact charging connection end on the circuit board;

[0024] Among them, the three positive electrodes in the spring clip charging component, the TYPE-C charging female socket, and the DC charging female socket are connected in parallel with each other, and the three negative electrodes are also connected in parallel with each other.

[0025] Furthermore, the charging indication component is an LED charging indicator light, and the LED charging indicator light is electrically connected to the LED power display lamp board connection end on the circuit board;

[0026] The charging adapter circuit board is connected to the circuit board at a ninety-degree angle;

[0027] The TYPE-C charging female socket, the DC charging female socket, and the LED indicator light are on the same plane.

[0028] Furthermore, the external conversion component includes a metal positive contact post and a metal negative contact post. The metal positive contact post and the metal negative contact post are respectively connected to the positive electrode and the negative electrode of the metal contact charging connection end on the circuit board through wires in corresponding connection;

[0029] Among them, the metal positive contact post is connected in parallel with the positive electrode in the spring clip charging component, and the metal negative contact post is connected in parallel with the negative electrode in the spring clip charging component;

[0030] The power supply module is a charging adapter seat with a strong magnetic metal. The power supply module has magnetic charging terminals and is correspondingly arranged with the metal positive contact post and the metal negative contact post.

[0031] A battery box includes a TYPE-C interface and a lithium battery module with charging indication, and also includes an upper box body and a lower box body;

[0032] On the top of the upper box body, a TYPE-C charging hole, a DC charging hole, and an LED indication hole are respectively provided in the same horizontal plane;

[0033] Among them, the TYPE-C charging female socket, the DC charging female socket, and the LED charging indicator light are respectively embedded and arranged corresponding to the TYPE-C charging hole, the DC charging hole, and the LED indication hole.

[0034] Furthermore, a fastener for connecting with an external power tool is provided on the upper box body;

[0035] One side of the upper box body is provided with a pressing groove, and the other side is provided with an avoidance groove. The fastener is movably embedded and installed in the upper box body through the pressing groove and the avoidance groove;

[0036] And a spring fixed to the battery bracket is connected to the top wall of the fastener. Under the action of the spring, the fastener can slide out and lock and slide in and unlock along the height direction of the upper box body.

[0037] Further, the bottom wall of the lower box body is distributed with bracket fixing plates, and the bracket fixing plates are adapted to the bottom wall of the battery bracket.

[0038] Further, reinforcing ribs are fixed on the side wall of the lower box body.

[0039] Compared with the prior art, the utility model has the following beneficial effects: by making the DC charging female socket, the TYPE-C charging female socket and the charging indication on the same plane, it is convenient for consumers to more quickly identify the charging place, and at the same time reduce the materials of the circuit board. At the same time, by adding the TYPE-C charging method, the applicable range of the lithium battery module is improved, and the charging operation time is effectively saved and reduced;

[0040] Through the setting of the charging indication element, consumers can more intuitively and clearly understand the charging process of the battery (whether the battery is connected to the charger, whether the battery is charging, whether the battery is fully charged);

[0041] Through the setting of the power supply module, the lithium battery module can be magnetically charged directly with the power supply module without being disassembled from the electric tool on the premise of manually disassembling and charging the electric tool, further improving the convenience of use of the module. Brief Description of the Drawings

[0042] Figure 1 It is a schematic structural diagram of a lithium battery module and a battery box with a TYPE-C interface and charging indication provided by the utility model;

[0043] Figure 2 It is a schematic disassembled structural diagram of a lithium battery module and a battery box with a TYPE-C interface and charging indication provided by the utility model;

[0044] Figure 3 It is a schematic structural diagram of the upper box body of a lithium battery module and a battery box with a TYPE-C interface and charging indication provided by the utility model;

[0045] Figure 4 It is a schematic structural diagram of the battery pack of a lithium battery module and a battery box with a TYPE-C interface and charging indication provided by the utility model;

[0046] Figure 5Schematic diagram of the fastener structure of the lithium battery module and battery box with a TYPE-C interface and charging indication provided by the present utility model;

[0047] Figure 6 Schematic diagram of the battery support structure of the lithium battery module and battery box with a TYPE-C interface and charging indication provided by the present utility model;

[0048] Figure 7 Schematic diagram of the sectional structure of the lithium battery module and battery box with a TYPE-C interface and charging indication provided by the present utility model;

[0049] Figure 8 Schematic diagram of the lower box body structure of the lithium battery module and battery box with a TYPE-C interface and charging indication provided by the present utility model;

[0050] Figure 9 Schematic diagram of the circuit board structure of the lithium battery module and battery box with a TYPE-C interface and charging indication provided by the present utility model.

[0051] The markings in the figure are explained as follows:

[0052] Battery pack 1, battery support 11, hardware metal component 12, battery 13, battery installation hole 14, installation embedding groove 15, circular glue 16, glue point 17;

[0053] Metal sheet 120, connecting section 121;

[0054] Circuit board 2, TYPE-C charging female socket 21, charging adapter circuit board 22, positioning post 23, DC charging female socket 24, spring clip charging component 25, hardware contact charging connection end 26;

[0055] Common positive charging and discharging hardware spring piece 250, negative charging hardware spring piece 251, negative discharging hardware spring piece 252;

[0056] Charging indication element 3, LED power display lamp board connection end 31;

[0057] External conversion element 4, hardware positive contact post 41, hardware negative contact post 42;

[0058] Power supply module 5, magnetic charging terminal 51;

[0059] Upper box body 6, TYPE-C charging hole 61, DC charging hole 62, LED indication hole 63, fixed card slot 64, fixed position 65, insulation card position 66;

[0060] Lower box body 7; bracket fixing plate 71, strengthening rib 72, LED power indicator;

[0061] Fastener 8, pressing groove 81, avoidance groove 82, spring 83, conical inclined surface 84, pressing end 85. Detailed implementation mode

[0062] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0063] As described in the background art, the deficiencies of lithium battery module products on the market are as follows:

[0064] 1: A small part of the battery packs used in power tools now have both a DC charging port and a TYPE-C charging interface, but most of the DC charging female sockets and TYPE-C charging interfaces on them are not designed on the same plane, which is inconvenient for consumers to more quickly and conveniently identify the charging interface, resulting in more laborious charging.

[0065] 2: Most of the battery packs used in power tools now are charged through a charger base or DC charging, and there is no charging indication on the battery. Consumers can only judge whether the charger is connected to the battery, whether it is charging, whether it is fully charged, etc. through the indicator light on the charger, resulting in not being very intuitive to understand the charging process of the battery.

[0066] 3: When the battery packs used in power tools need to be charged, they all need to be removed from the power tools for charging. Repeatedly plugging and unplugging the battery in this way increases the labor time and cannot achieve charging during work breaks.

[0067] To solve this technical problem, the present invention provides a lithium battery module and a battery box with a TYPE-C interface and a charging indication, which are applied to the lithium battery module.

[0068] Specifically, please refer to Figures 1-9 , the lithium battery module with a TYPE-C interface and a charging indication includes: a battery pack 1, above which a circuit board 2 is provided and electrically connected thereto;

[0069] A TYPE-C charging female socket 21, which is provided above the circuit board 2 and electrically connected thereto through a charging adapter circuit board 22;

[0070] A charging indication element 3, which is provided above the circuit board 2 and electrically connected thereto;

[0071] The battery bracket 11 has two parts which are respectively distributed on both sides of the battery pack 1, and a hardware metal component 12 electrically connected to the positive and negative electrodes of the battery pack 1 is embedded in the battery bracket 11;

[0072] Wherein, an external conversion element 4 electrically connected to the hardware metal component 12 is commonly provided at the outer ends of the two battery brackets 11. Under the action of the external conversion element 4, the battery pack 1 can be directly magnetically charged with an external power supply module 5.

[0073] For the lithium battery module and battery box with a TYPE-C interface and a charging indicator provided by the present invention, through the setting of the charging indicator element 3, consumers can more intuitively and clearly understand the charging process of the battery 2 (whether the battery is properly connected to the charger, whether the battery is charging, and whether the battery is fully charged);

[0074] Through the setting of the power supply module 5, on the premise that the lithium battery module can be manually disassembled and charged on the electric tool, it can also be magnetically charged directly with the power supply module 5 without being disassembled from the electric tool, further improving the convenience of using the module.

[0075] Please refer to Figures 1-9 A battery box, which includes a lithium battery module with a TYPE-C interface and a charging indicator, and also includes an upper box body 6 and a lower box body 7;

[0076] At the top of the upper box body 6, a TYPE-C charging hole 61, a DC charging hole 62, and an LED indicator hole 63 are respectively provided in the same horizontal plane;

[0077] Wherein, the TYPE-C charging female socket 21, the DC charging female socket 24, and the LED charging indicator lamp are respectively embedded and arranged corresponding to the TYPE-C charging hole 61, the DC charging hole 62, and the LED indicator hole 63;

[0078] For the battery box provided by the present invention, by making the DC charging female socket 24, the TYPE-C charging female socket 21, and the LED charging indicator lamp on the same plane, it is convenient for consumers to more quickly identify the charging place, and at the same time, the materials of the circuit board 2 are reduced. At the same time, through the added TYPE-C charging method, the applicable range of the lithium battery module is improved, and the charging operation time is effectively saved and reduced.

[0079] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0080] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0081] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0082] Embodiment 1

[0083] Please refer to Figures 1-9 , a lithium battery module with a TYPE-C interface and charging indication. There is a battery pack 1, and a circuit board 2 is provided above it and electrically connected to it. There are components such as a protection IC, MOS, resistors, and capacitors on the circuit board 2. At the same time, there is a charging transfer circuit board 22 on the protection circuit board (this board is welded on the protection circuit board, and the two boards form a 90-degree angle). There are components such as a TPYE-C female socket, a 5.5*2.1 female socket, an induction IC, an inductor, capacitors, resistors, and an LED lamp on this board. The charging transfer circuit board 22 is soldered to the circuit board 2, which serves to fix it and conduct the positive or negative electrode. The charging transfer circuit board 22 used in cooperation with the circuit board 2 has functions of protecting against overcharging, over-discharging, short-circuiting, over-current, and over-temperature of the battery;

[0084] A TYPE-C charging female socket 21 is provided above the circuit board 2 and electrically connected to it through the charging transfer circuit board 22;

[0085] A charging indication element 3 is provided above the circuit board 2 and electrically connected to it;

[0086] There are two battery brackets 11, which are respectively distributed on both sides of the battery pack 1. A hardware metal component 12 electrically connected to the positive and negative electrodes of the battery pack 1 is embedded in the battery brackets 11. The battery brackets 11 are non-fixed graphic plastic connection brackets. Among them, an external conversion element 4 electrically connected to the hardware metal component 12 is commonly provided at the outer ends of the two battery brackets 11. Under the action of the external conversion element 4, the battery pack 1 can be directly magnetically charged with an external power supply module 5;

[0087] The battery pack 1 includes several groups of batteries 13, and multiple batteries 13 are evenly distributed between the two battery brackets 11 for installation and fixation;

[0088] Corresponding battery installation holes 14 are provided on the battery brackets 11 for the positive and negative electrodes of the batteries 13. Multiple batteries 13 are embedded and installed on the battery brackets 11 through the battery installation holes 14. Under the action of the battery installation holes 14, the positive and negative electrodes of several batteries 13 can be exposed to the outside;

[0089] Such as Figure 4 、 Figure 5 And Figure 6As shown in the figure, the battery mounting holes 14 on the left and right battery brackets 11 of the battery 2 are arranged closely up and down. They are several circular honeycomb-shaped hollow cylinders with upper and lower concentric rings connected. There is a layer of glue connecting the concentric ring cylinders, forming a connected circular honeycomb-shaped bracket, and a part of the circular diameter on the front is exposed, which is smaller than the circular diameter below, forming a single hollow cylinder with a circle of glue exposed on the upper part. A number of batteries 2 are inserted into these battery holes one by one, so that the single batteries are fixed, insulated from heat, and insulated from each other. The two battery brackets 11 are bolted together through connecting bolts to form a fastening for the battery 2 installed therein;

[0090] A layer of circular glue 16 with an arc shape on the upper part of the battery bracket 11 plays a role in fixing a single battery 2 and insulating the positive and negative electrodes of the battery 2 or the connecting metal sheet, and at the same time plays a role in fixing the battery 2;

[0091] The battery brackets 11 jointly arranged in the upper box body 6 and the lower box body 7 play a fixing role for each battery 2, ensuring that each battery 2 is stably installed, and solving the problem that in the prior art, during the operation of the electric tool, the vibration is large and the battery vibrates and disconnects the hardware metal component 12.

[0092] Both sides of the two battery brackets 11 have installation embedding grooves 15 for assembling the common hardware metal component 12. Through the above-mentioned battery mounting holes 14 and using part of the metal sheet of the hardware metal component 12 as a medium, the battery cores are connected in series or in parallel to achieve the required voltage and capacity;

[0093] Such as Figure 4 and Figure 5 As shown in the figure, the hardware metal component 12 includes a metal sheet 120. The metal sheet 120 is embedded and installed on the battery bracket 11 through the installation embedding groove 15 and welded to the positive and negative electrodes of the corresponding battery 13. Under the action of the metal sheet 120, multiple corresponding batteries 13 can be connected in series and in parallel;

[0094] And the metal sheet 120 extends towards the direction of the circuit board 2 to form a connection section 121. The metal sheet 120 in this embodiment can be a metal connection sheet such as a nickel sheet, a steel sheet, or an electroplated nickel.

[0095] As a further optimization of this embodiment: The side parts of the left and right battery brackets 11 of the battery 2 have protruding rubber strips, and at the same time, there are also concave parts, which play a role in fixing the metal sheet 120, and there are small rubber dots 17 in sections on it.

[0096] Such as Figure 4 and Figure 5As shown, the circuit board 2 is recessed into the inner space of the glue dots 17. At the same time, the circuit board 2 is inserted on multiple glue dots 17, which plays a role in fixing the circuit board 2 and preventing it from shaking back and forth, left and right. At the same time, it also facilitates the connection between the hardware metal component 12 and the circuit board 2.

[0097] The circuit board 2 is fixedly installed with the positioning posts 23 at the top of the battery bracket 11. The metal sheet 120 forms an electrical connection with the corresponding circuit board 2 above through the connection section 121. There is a through slot at the position of the circuit board 2 corresponding to the metal sheet 120. Through the through slot, the metal sheet 120 is inserted into the corresponding connection position of the circuit board 2 from bottom to top (such as B-B1 B2 B3 B+). According to the working current situation of the device, the metal surface where the metal sheet 120 is connected to the circuit board 2 is adjusted. Some connection components have a large area, some have a small area, some connection pieces are thick, and some are thin, which is determined according to the working performance of the device.

[0098] As Figure 5 shown, the circuit board 2 also has a DC charging female socket 24. The DC charging female socket 24 is electrically connected to the circuit board 2 through the charging transfer circuit board 22. Through the unified TYPE-C charging interface, consumers will be able to purchase new electronic devices without a new charger, which helps to reduce electronic waste. It can further promote environmental protection and the effective utilization of resources, and it is also convenient for consumers to use the existing charger with a TYPE-C interface to charge the battery of the power tool without the need for a specific DC charger to charge, thus effectively saving time and labor costs.

[0099] Embodiment 2

[0100] On the basis of Embodiment 1, the lithium battery module with a TYPE-C interface and a charging indicator is further optimized. As Figure 2 、 4 and shown in 8, there is also a spring clip charging component 25 inside the circuit board 2 on the inner side where the DC charging female socket 24 is located. Among them, the spring clip charging component 25 includes a common charging and discharging hardware spring sheet positive electrode 250, a charging hardware spring sheet negative electrode 251, and a discharging hardware spring sheet negative electrode 252. The hardware spring sheet positive electrode 250, the charging hardware spring sheet negative electrode 251, and the discharging hardware spring sheet negative electrode 252 are all electrically connected to the hardware contact charging connection terminal 26 on the circuit board 2;

[0101] The positive electrode inside the spring clip charging component 25 is connected in parallel with the positive electrode of the hardware contact charging connection terminal 26, and the negative electrode inside the spring clip charging component 25 is connected in parallel with the negative electrode of the hardware contact charging connection terminal 26;

[0102] The upper part of the spring clip charging member 25 is tightly combined with the upper box body 6. During actual application, the power tool is inserted in front of the spring clip charging member 25. The elastic force of the spring enables the positive charging and discharging common metal spring piece 250, the negative charging metal spring piece 251, and the negative discharging metal spring piece 252 of the spring clip charging member to be clamped with the corresponding terminals and form a circuit, thus playing a role in conducting electricity.

[0103] Similarly, when charging is required, the battery is inserted into a charging base (not shown in the figure). The positive and negative electrodes in the charging base are directly inserted into the positive and negative metal spring pieces inside the spring clip charging member 25 on the battery 2, and they are connected to each other to form a circuit, completing the conduction function.

[0104] Among them, the three positive electrodes in the spring clip charging member 25, the TYPE-C charging female socket 21, and the DC charging female socket 24 are connected in parallel with each other, and the three negative electrodes are also connected in parallel with each other. The positive and negative electrodes of the above TYPE-C are the positive and negative interface ends after internal boosting or bucking through the circuit board conversion.

[0105] On the upper box body 6, there are through holes corresponding to the positive charging and discharging common metal spring piece 250, the negative charging metal spring piece 251, and the negative discharging metal spring piece 252 on the circuit board 2. And there is an insulating glue on the upper box body 6 to separate the spring clip charging member 25, making the battery 2 safer, preventing short circuits, and enabling the external power tool to be better inserted into the spring pieces.

[0106] The above three charging methods are summarized as follows:

[0107] 1. The positive and negative electrodes of the spring clip charging member 25 are connected to the positive and negative metal sheets of the seat charger to charge the battery;

[0108] 2. The DC charging female socket 24 is connected to the DC male head on the charging wire to charge the battery;

[0109] 3. The TYPE-C charging female socket 21 is connected to the male head on the TYPE-C connection wire, and after boosting or bucking through the circuit, a new voltage (the boosted or bucked voltage) is formed to charge the battery.

[0110] The above three charging methods are realized by connecting the three positive charging interfaces in parallel and the three negative charging interfaces in parallel.

[0111] Embodiment 3

[0112] On the basis of Embodiment 2, the lithium battery module with a TYPE-C interface and charging indication is further optimized: the charging indication element 3 is an LED charging indicator light, and the LED charging indicator light is electrically connected to the LED power display lamp board connection end 31 on the circuit board 2 through a wire. Through the function of the LED charging indicator light, consumers can more intuitively understand the battery charging process (whether the battery is properly connected to the charger, whether the battery is charging, and whether the battery is fully charged). For example, by setting the charging light to red and the fully charged light to green, consumers can more intuitively understand the battery charging status;

[0113] The charging adapter circuit board 22 is connected to the circuit board 2 at a ninety-degree angle. The charging adapter circuit board 22 is placed on the circuit board 2 and is at a 90-degree angle with one end of the circuit board 2. Two pins are inserted into the PCB board of the circuit board, and the other end is combined with the TYPE-C charging female socket 21, the DC charging female socket 24, and the upper box body 6 on a plane;

[0114] The TYPE-C charging female socket 21, the DC charging female socket 24, and the LED indicator light are on the same plane;

[0115] Embodiment 4

[0116] On the basis of Embodiment 3, the lithium battery module with a TYPE-C interface and charging indication is further optimized:

[0117] The external conversion element 4 includes a metal positive contact post 41 and a metal negative contact post 42. The metal positive contact post 41 and the metal negative contact post 42 are respectively electrically connected to the positive and negative poles corresponding to the metal contact charging connection end 26 on the circuit board 2 through wires;

[0118] Among them, the metal positive contact post 41 is connected in parallel with the positive pole in the spring clip charging member 25, and the metal negative contact post 42 is connected in parallel with the negative pole in the spring clip charging member 25;

[0119] The power supply module 5 is a charging adapter seat with a strong magnetic metal. The power supply module 5 has a magnetic charging terminal 51 and is correspondingly arranged with the metal positive contact post 41 and the metal negative contact post 42;

[0120] There are two magnetic charging terminals 51 in this embodiment. The two magnetic charging terminals 51 are respectively the positive and negative poles, and the magnetic charging terminals 51 are flush with the external plastic shell;

[0121] The positive or negative metal contact on the metal surface charging base of the power supply module 5 is a strong magnetic metal contact. When the consumer needs to charge, they directly place the lithium battery of the power tool close to the power supply module 5. The strong magnetism on it will be connected to the magnetic charging terminal 51 on the battery module. The positive or negative metal on the battery module will be magnetically coupled and connected to the strong magnetic positive or negative metal contact on the power supply module 5 to complete the charging.

[0122] This embodiment can achieve three charging methods when the battery module is removed from the power tool for charging. Among them, TYPE-C charging is the focus of this embodiment, which is: a power tool battery pack with a DC charging female socket, a TYPE-C charging female socket, and a charging indicator on the same plane.

[0123] Because most lithium batteries of power tools on the market now need to be removed from the power tool for charging when they are out of power. After the battery is fully charged, it needs to be connected back to the power tool. Such repeated operations increase the workload of the workers and are not convenient to operate. This also increases the number of times the battery is repeatedly connected to the power tool, and the metal spring pieces are prone to deformation and cannot be better connected. However, in this embodiment, the power tool with the battery can be directly leaned against the power supply module 5 for direct charging. When it is necessary to use the power tool for work, just take it away directly.

[0124] Embodiment 5

[0125] Based on Embodiment 4, a battery box is proposed, which includes a lithium battery module with a TYPE-C interface and a charging indicator, and further includes an upper box body 6 and a lower box body 7. A cavity is jointly formed between the upper box body 6 and the lower box body 7 for installing the lithium battery module;

[0126] On the top of the upper box body 6, a TYPE-C charging hole 61, a DC charging hole 62, and an LED indicator hole 63 are respectively provided in the same horizontal plane;

[0127] Among them, the TYPE-C charging female socket 21, the DC charging female socket 24, and the LED charging indicator are respectively embedded and arranged corresponding to the TYPE-C charging hole 61, the DC charging hole 62, and the LED indicator hole 63.

[0128] Since it changes the direction of the front DC interface compared to traditional battery packs (the original DC charging port was 180 degrees planar with the circuit board), the changed TYPE-C charging hole 61, DC charging hole 62, and LED indicator hole 63 are on the same plane, and the DC charging hole 62 is 90 degrees with the circuit board 2. Such planar charging is ergonomic and convenient for fingers to hold the DC connector and insert it into the DC charging female socket 24 of the battery 2, solving the problem that the traditional side DC charging method is inconvenient, the fingers holding the DC charging plug are squeezed, and it is not ergonomic.

[0129] The TYPE-C female socket is aligned with the DC female socket at the outlet in the upper box body 6, so that the component fits better with the upper box body 6. Thus, through the structural design on one plane, it is convenient for consumers to identify the charging port faster, understand the charging status of the battery through the charging indicator, and at the same time reduce the materials of the circuit board 2, which can better reduce the production cost. The DC charging female socket, TYPE-C charging female socket, and charging indicator are on the same plane, which is convenient for production, reduces labor, saves costs, and better improves the safety of the product, and the product structure is more reasonable;

[0130] For example, when the TYPE-C male plug is inserted into the TYPE-C charging female socket 21 of the battery, when the electronic components in the charging adapter circuit board 22 installed on the circuit board 2 detect an external voltage, the TPYE-C induction IC gives a signal for the maximum voltage (20V or 12V, or 5V). Through data exchange, the charger end gives a voltage (20V or 12V, or 5V) required by the induction IC, which is connected to the charging adapter circuit board 22 through the data cable. The charging adapter circuit board 22 converts it into the maximum (high) voltage required by the battery through components such as boost or buck ICs, inductors, capacitors, and resistors, and through circuit amplification, etc., to charge the lithium battery of the power tool normally. The voltage after this circuit conversion (boosted or bucked voltage) has its positive pole paralleled with the positive pole of the DC charging female socket 24 and its negative pole paralleled with the negative pole of the DC charging female socket 24;

[0131] The above circuit can achieve making the DC charging female socket 24, TYPE-C charging female socket 21, and LED charging indicator on the same plastic shell plane. The battery 2 can be charged with the DC male plug of the charger or the TYPE-C male plug. With these two methods, the battery can be charged. According to the consumer, use the method that is suitable for the consumer to charge the battery. During the charging process at all times, the LED light indicates the charging status of the battery (when the DC charger is normally connected or the TYPE-C charging is connected, it lights up red, indicating that it is charging; when it lights up green, it means the battery is fully charged), and the distribution is more reasonable and tidy.

[0132] As a further optimization of this embodiment: on both sides of the top of the upper box body 6, fixed card slots 64 are provided. When connected to a power tool, the fixed card slots 64 are clamped at the battery interface of the power tool, playing a role in reinforcement, which is beneficial to enhancing the stability of the battery and making the combination of the battery and the power tool more stable.

[0133] As Figure 3 shown, as a further optimization of this embodiment, at the position of the top wall of the upper box body 6 corresponding to the spring clip charging member 25, a fixed position 65 for it to protrude is formed, and an insulating clamping position 66 connected to the upper box body 6 is also fixed at the position of the fixed position 65. Thus, during the charging and discharging process, it plays an isolating role for multiple metal spring sheets, preventing the positive electrode and the negative electrode in the spring clip charging member 25 from coming into contact and forming a short circuit, increasing the safety and tight combination of the battery.

[0134] Embodiment 6

[0135] On the basis of Embodiment 5, further optimize the lithium battery module with a TYPE-C interface and a charging indicator:

[0136] On the upper box body 6, a fastener 8 for connecting to an external power tool is provided;

[0137] On one side of the upper box body 6, a pressing groove 81 is provided, and on the other side, an avoidance groove 82 is provided. Among them, the fastener 8 is movably embedded and installed in the upper box body 6 through the pressing groove 81 and the avoidance groove 82;

[0138] And the top wall of the fastener 8 is connected with a spring 83 fixed to the battery bracket 11. Under the action of the spring 83, the fastener 8 can slide out and lock and slide in and unlock along the height direction of the upper box body 6;

[0139] The fastener 8 has a conical inclined surface 84 and passes out of the inside of the upper box body 6 to the outside. There are front, rear, left, and right fixed baffles on its inner surface, so that under the elastic action of the spring 83 and the action of manual external force, the conical inclined surface 84 can move up and down back and forth, playing a role in fixing the battery module to the power tool so that it does not slip. When the fastener 8 rebounds under the action of the spring 83 and is higher than the DC charging hole 62, the other end is a pressing end 85, and this end is located on the side surface of the upper box body 6. When the battery module needs to be taken out, manually press the pressing end 85 on the fastener 8 downward. At the same time, the conical inclined surface 84 on the other side of the fastener 8 also moves downward. At this time, the conical inclined surface 84 falls outside the inner card slot of the power tool. Under the action of pushing the battery module forward with an external force, the battery module is taken off from the power tool. By setting the pressing end 85 to a different color from the upper box body 6 and the lower box body 7, it helps to distinguish the pressing area during operation;

[0140] The actual structure and operation method of the above fastener 8 are mature and perfect existing technologies, and no further elaboration is made in this embodiment;

[0141] Example 7

[0142] Based on Example 6, the lithium battery module with a TYPE-C interface and a charging indicator is further optimized as follows:

[0143] The bottom wall of the lower box body 7 is distributed with bracket fixing plates 71, and the bracket fixing plates 71 are adapted to the bottom wall of the battery bracket 11 to prevent the battery module from moving forward and backward inside it;

[0144] Reinforcing ribs 72 are fixed on the side wall of the lower box body 7;

[0145] After the upper box body 6 and the lower box body 7 are correspondingly buckled together to form a package for installing the battery module, the upper box body 6 and the lower box body 7 are connected by screws to complete the final locking connection;

[0146] As a further optimization of this embodiment: there is an LED power indicator 73 at the front end of the lower box body 7. When the product is designed with a power indicator, an LED power indicator circuit board is installed on the internal battery bracket 11 and connected to the circuit board 2 with wires, and an indicator sticker is pasted on the outside. There are LED lamp status descriptions and key switch indicators on the sticker. When the product design does not require a power indicator, black stickers are pasted at the LED lamp hole and the key switch to seal the LED power indicator hole. The pasted surface is integrated with the outer shell shape.

[0147] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0148] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown in the accompanying drawings, but they do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields are similarly within the scope of the patent protection of the present utility model.

Claims

1. A lithium battery module with a TYPE-C interface and a charging indicator, characterized in that: It includes: A battery pack (1), with a circuit board (2) disposed on top and electrically connected to the circuit board; A TYPE-C charging socket (21), which is disposed above the circuit board (2) and is electrically connected to the circuit board via a charging adapter circuit board (22); A charging indication element (3), which is disposed above the circuit board (2) and is electrically connected thereto; A battery bracket (11), which has two and is respectively distributed on both sides of the battery pack (1), and a hardware metal component (12) electrically connected to the positive and negative electrodes of the battery pack (1) is embedded in the battery bracket (11); The outer ends of the two battery holders (11) are provided with an external conversion element (4) electrically connected to the hardware metal component (12). Under the action of the external conversion element (4), the battery pack (1) can be directly charged by magnetic attraction with an external power supply module (5).

2. The lithium battery module with a TYPE-C interface and a charging indicator according to claim 1, characterized in that: The battery pack (1) comprises a plurality of groups of batteries (13), and the plurality of batteries (13) are distributed at equal intervals between the two battery brackets (11) for installation and fixation; The battery holder (11) is provided with corresponding battery mounting holes (14) for the positive and negative electrodes of the battery (13); a plurality of the batteries (13) are embedded and mounted on the battery holder (11) through the battery mounting holes (14); and the positive and negative electrodes of a plurality of the batteries (13) can be exposed to the outside due to the action of the battery mounting holes (14).

3. The lithium battery module with a TYPE-C interface and a charging indicator according to claim 2, characterized in that: Both sides of the two battery brackets (11) have mounting grooves (15) for assembling the hardware metal components (12); The hardware metal component (12) comprises a metal sheet (120), wherein the metal sheet (120) is embedded in the battery bracket (11) through an embedding groove (15) and welded to the positive and negative electrodes of the corresponding battery (13), and the metal sheet (120) can enable a plurality of corresponding batteries (13) to be connected in series or in parallel; Furthermore, the metal sheet (120) extends in a direction towards the circuit board (2) to form a connecting section (121).

4. The lithium battery module with a TYPE-C interface and a charging indicator according to claim 3, characterized in that: The circuit board (2) is fixedly mounted to the battery holder (11) via a positioning column (23) at the top thereof, and the metal sheet (120) is electrically connected to the corresponding circuit board (2) above via a connecting section (121); The circuit board (2) also has a DC charging socket (24), and the DC charging socket (24) is electrically connected to the circuit board (2) through the charging adapter circuit board (22); The circuit board (2) is provided with a spring clip charging component (25) on the inner side of the DC charging socket (24), wherein the spring clip charging component (25) comprises a common charging and discharging hardware spring positive electrode (250), a charging hardware spring negative electrode (251) and a discharging hardware spring negative electrode (252), and the hardware spring positive electrode (250), the charging hardware spring negative electrode (251) and the discharging hardware spring negative electrode (252) are all electrically connected to the hardware contact charging connection terminal (26) on the circuit board (2); Among them, the three positive electrodes in the spring clip charging component (25), the TYPE-C charging socket (21) and the DC charging socket (24) are connected in parallel to each other, and the three negative electrodes are also connected in parallel to each other.

5. The lithium battery module with a TYPE-C interface and a charging indicator according to claim 1, characterized in that: The charging indicating element (3) is an LED charging indicator light, and the LED charging indicator light is electrically connected to an LED power display light board connection end (31) on the circuit board (2); The charging adapter circuit board (22) is connected to the circuit board (2) at a 90-degree angle; The TYPE-C charging socket (21), the DC charging socket (24) and the LED indicator light are on the same plane.

6. The lithium battery module with a TYPE-C interface and a charging indicator according to claim 1, characterized in that: The external conversion element (4) comprises a metal positive contact post (41) and a metal negative contact post (42), wherein the metal positive contact post (41) and the metal negative contact post (42) are respectively connected to the positive and negative poles of the metal contact charging connection terminal (26) on the circuit board (2) via wires; The metal positive electrode contact post (41) is connected in parallel with the positive electrode in the spring clip charging component (25), and the metal negative electrode contact post (42) is connected in parallel with the negative electrode in the spring clip charging component (25); The power supply module (5) is a charging adapter with strong magnetic hardware. The power supply module (5) has a magnetic charging terminal (51) and is arranged corresponding to the hardware positive pole contact post (41) and the hardware negative pole contact post (42).

7. A battery box, comprising a lithium battery module with a TYPE-C interface and a charging indicator as claimed in any one of claims 1 to 6, characterized in that: It also includes an upper box body (6) and a lower box body (7); The top of the upper box body (6) is provided with a TYPE-C charging hole (61), a DC charging hole (62), and an LED indicator hole (63) in the same horizontal plane; The TYPE-C charging socket (21), the DC charging socket (24) and the LED charging indicator light are respectively embedded and arranged corresponding to the TYPE-C charging port (61), the DC charging port (62) and the LED indicator hole (63).

8. The battery box according to claim 7, characterized in that: The upper box body (6) is provided with a fastener (8) for connecting to an external electric tool; A pressing groove (81) is provided on one side of the upper box body (6), and an escape groove (82) is provided on the other side, wherein the fastener (8) is movably embedded and installed in the upper box body (6) through the pressing groove (81) and the escape groove (82); The top wall of the fastener (8) is connected to a spring (83) fixed to the battery bracket (11), and the fastener (8) can be slid out to be locked and slid in to be unlocked along the height direction of the upper box body (6) under the action of the spring (83).

9. The battery box according to claim 8, characterized in that: A bracket fixing plate (71) is distributed on the bottom wall of the lower box body (7), and the bracket fixing plate (71) is adapted to the bottom wall of the battery bracket (11).

10. The battery box according to claim 9, characterized in that: A reinforcing ridge (72) is fixed on the side wall of the lower box body (7).

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