CN102024925A - Battery box and battery pack with same - Google Patents

Abstract

The invention relates to battery structural parts, in particular to a high-strength battery box which can be used for electric heating shoes and a battery pack including the battery box. The battery box includes a body and a cover. A cavity for accommodating batteries is formed on the body. The body and the cover are made of metal materials. The bottom of the body is provided with a partition. The partition divides the cavity into at least two parts. When the cover is fastened on the body, the partition supports the cover. The battery box of the present invention is made of high-strength metal, and the middle part of the box body is provided with a partition for supporting the cover, which improves the compression resistance of the battery box and can meet the strength requirements of the special battery for electric heating shoes.

Description

A battery box and a battery pack including the battery box

technical field

The invention relates to battery structural parts, in particular to a high-strength battery case and a battery pack including the battery case.

Background technique

In winter, especially in the northern hemisphere, the outdoor temperature is generally below minus 10 degrees Celsius. People who often do outdoor activities will feel their feet are cold even if they wear cotton shoes. Electric heating shoes powered by batteries have occurred for this reason. A layer of thin electric wires is laid on the sole of the electric heating shoe, a battery box is arranged inside the heel of the shoe, and a battery cover is arranged inside the shoe. The battery compartment contains rechargeable batteries. The switch is located on the upper of the shoe. When the battery power is low, you can open the battery cover from inside the shoe to take out the battery for charging. The disadvantage is that the strength of the battery box is not enough, and the battery cover will be deformed and collapsed after long-term use, which will affect the comfort of the shoes. In addition, it is inconvenient to charge, and the battery cover is easy to loosen or even shift after long-term use.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high-strength battery box that can be used for electric heating shoes and a battery pack using it.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a battery box, including a body and a cover. A cavity for accommodating batteries is formed on the body. The body and the cover are made of metal materials. The bottom of the body is provided with a partition. The partition divides the cavity into at least two parts. When the cover is fastened on the body, the partition supports the cover.

A battery pack includes a battery box, a battery placed in the battery box, a circuit board, a discharge interface, a switch circuit and a charging interface. The body and the cover of the battery box are fixedly connected by a fixing piece. The battery box includes a body and a cover. A cavity for accommodating batteries is formed on the body. The body and the cover are made of metal materials. The bottom of the body is provided with a partition. The partition divides the cavity into at least two parts. When the cover is fastened on the body, the partition supports the cover.

Preferably, in order to prevent short circuit of the battery, the surface of the body and the cover can be covered with an insulating layer. In order to simplify the molding process, the cover may be provided with a raised line opposite to the partition, and when the cover is fastened to the body, the partition will abut against the raised line to support the cover. In order to increase the comfort of use, the battery box is generally in the shape of a horseshoe, the straight end of which is stepped, and the thickness of the arc-shaped end is greater than the thickness of the straight end. The body is also provided with a circuit board storage slot, a charging interface bracket and a discharge interface storage slot, the side wall of the main body is provided with an opening for the switch to be exposed, and the cover is formed with an opening for the charging interface and the discharge interface respectively. out the through hole. In order to enhance the sealing effect, a sealing strip can be arranged between the body and the cover. In order to protect the battery, an elastic pad can be laid on the bottom of the cavity.

The battery box of the present invention is made of high-strength metal, and the middle part of the box body is provided with a partition for supporting the cover, which improves the compression resistance of the battery box and can meet the strength requirements of the special battery for electric heating shoes.

Description of drawings

Fig. 1 is a schematic structural view of a battery box in an embodiment.

Fig. 2 is an exploded schematic view of the battery box in an embodiment.

Fig. 3 is a schematic structural view of the battery box body in an embodiment.

Fig. 4 is a structural schematic diagram of another angle of the battery box cover in an embodiment.

Detailed ways

The battery case of the present invention and the structural principle of the battery pack using it will be further described in detail below in conjunction with specific embodiments and drawings.

As shown in FIG. 1 and FIG. 2 , a battery pack 100 according to an embodiment of the present invention is mainly used for power supply of electric heating (heating) shoes. In use, the battery pack 100 is installed in the heel of the electric heating (heating) shoe, located under the insole, and close to the back of the shoe.

The battery pack 100 includes a battery case. The battery box includes a body 10 and a cover 20 . The battery pack 100 also includes a sealing ring 80 placed between the body 10 and the cover 20, a battery 30 placed in the battery box, a circuit board 40, a charging interface 50 electrically connected to the circuit board 40, a discharging interface 60 and a switch circuit 70.

The battery box is made of high-strength metal materials, such as but not limited to aluminum alloy, stainless steel, etc., which can withstand a weight of more than 100 kg for a long time without deformation. The inner and outer surfaces of the battery box are covered with an insulating layer, which effectively prevents short-circuiting of the battery and improves the safety of the battery pack. In this embodiment, the surface of the battery box is sprayed with insulating varnish.

The battery box is generally horseshoe-shaped, and the thickness of its arc-shaped end is slightly greater than the thickness of the straight-line end opposite to the arc-shaped end, so that the user of the electric heating (hot) shoes is more comfortable to wear. The straight edge of the battery box is stepped and connected with the bottom layer of the shoe where the electric heating circuit is laid. Specifically, the middle position of the straight edge is protruding, so that the side view of the straight edge is in the shape of a "convex" lying down. This structure can buffer the torsion force generated by people on the battery pack while walking, and prevent the battery pack from shifting.

As shown in FIGS. 2 and 3 , a cavity for accommodating a battery 30 is formed on the body 10 , and a separator 12 is provided at the bottom of the cavity to divide the cavity into two parts. After the cover 20 is fastened onto the body 10 , the partition 12 and the frame of the body 10 together play a role of supporting the cover 20 . The arc-shaped end close to the horseshoe shape of the body 10 is also provided with a circuit board storage slot (not marked) and a charging interface bracket (not marked), and a discharge interface storage slot 14 is formed on the step at the straight edge end, and the side wall of the body 10 has a The opening 16 for the switch circuit 70 to protrude from. In other embodiments, according to the size of the battery pack and the number of batteries, multiple partitions can be provided on the body to divide the cavity into three or more parts, so as to effectively support the cover 20 and improve the pressure resistance of the battery pack , to meet the corresponding strength requirements.

As shown in FIG. 2 and FIG. 4 , two through holes 22 and 24 are formed on the cover body 20 corresponding to the charging interface bracket and the discharging interface receiving groove 14 , respectively for the exposure of the charging interface 50 and the discharging interface 60 . The cover 20 is also provided with a protruding strip 26 opposite to the partition 12 , when the cover 20 is fastened to the body 10 , the partition 12 is against the protruding strip 26 to support the cover 20 . In other embodiments, the raised lines on the cover can be omitted, and the height of the partition can be increased so that the partition can directly support the cover.

In this embodiment, the body 10 and the cover 20 are fixedly connected by fasteners (not shown), such as bolts, to facilitate replacement of the battery 30 . The battery 30 includes four square lithium secondary batteries in flexible packaging, and the cost is lower than that of lithium secondary batteries with metal hard casings. In order to reduce damage to the battery 30 caused by vibrations generated during walking, an elastic pad, such as a sponge pad, can also be laid on the bottom of the body 20 and the battery 30 .

The switching circuit 70 may include one of a manual switch or a remote control switch. The manual switch can be a two-stage toggle switch or a push button switch, etc. The remote control switch can be a wireless switch such as an infrared switch or a sub-ultrasonic switch. When the switch circuit 70 uses a remote control switch, the battery pack 100 also needs to include a remote control. The sealing ring 80 can play the role of waterproof and moisture-proof.

When in use, the battery pack 100 is installed in the heel of the electric heating shoe, and the discharge interface 60 is electrically connected with the heating wire of the shoe sole. The insole is laid on the heating wire and the battery pack 100 . A through hole is opened at the position corresponding to the charging interface 50 on the insole, so that the charging interface 50 is exposed. When the battery power is insufficient or the electric shoes are not used, the battery pack 100 in the shoes can be charged directly by the charger. It is very convenient to use.

The above-mentioned embodiments only express the implementation manner of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. battery case, comprise body and lid, be formed with the cavity that is used to hold battery on the described body, it is characterized in that: described body and lid are made by metal material, the bottom of described body is provided with dividing plate, described dividing plate is divided at least two parts with cavity, when lid is fastened on the body, and described membrane support lid.

2. battery case according to claim 1 is characterized in that described body and top surface are coated with insulating barrier.

3. battery case according to claim 2 is characterized in that, also is provided with the raised line relative with described dividing plate on the described lid, and when lid was fastened on the body, described dividing plate and raised line offseted to support lid.

4. battery case according to claim 2 is characterized in that described battery case is the shape of a hoof substantially, and its straight line end is step-like, and the thickness of circular arc one end is greater than the thickness of straight line end.

5. battery case according to claim 2, it is characterized in that, also be provided with the circuit board accepting groove in the described body, charging inlet carriage and discharge interface accepting groove, the body sidewall has the opening that exposes for switch, is formed with the through hole that stretches out for described charging inlet and discharge interface respectively on the described lid.

6. battery case according to claim 2 is characterized in that, is provided with sealing strip between described body and the lid.

7. battery case according to claim 2 is characterized in that described cavity bottom is covered with cushion.

8. power brick, comprise battery case and place battery case interior battery, circuit board, discharge interface and switching circuit, it is characterized in that, described battery case is according to described each the battery case of claim 1-7 item, described power brick also comprises charging inlet, and the body of described battery case is fixedlyed connected by fixture with lid.

9. power brick according to claim 8 is characterized in that, described battery is a flexible-packaged lithium secondary cell.

10. power brick according to claim 8 is characterized in that, described switching circuit comprises a kind of in hand switch or the remote control switch.

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