CN218351624U - Battery box - Google Patents

Abstract

The utility model provides a battery box, which relates to the technical field of battery anti-reverse installation and comprises a lower shell, an upper shell, a positive contact element and a negative contact element; the lower shell and the upper shell form an accommodating space for accommodating a battery; the positive contact piece is arranged in the first groove of the upper shell in an embedded mode; the first groove is used for accommodating the positive electrode of the battery; the first groove and the second groove are oppositely arranged; the negative contact piece is arranged in the second groove of the upper shell in an embedded mode; the negative contact piece is an elastic component, and the free end of the negative contact piece is positioned outside the second groove in a free state; the distance from the positive contact piece to the outer wall of the second groove is not more than the length of the battery when the battery is installed. Adopt above-mentioned battery case, the battery flip-chip can't be packed into, even violence is packed into, this battery case structure can guarantee the circuit nonconducting certainly to guarantee battery safety.

Description

Battery box

Technical Field

The utility model relates to a battery prevents reverse installation technical field, especially relates to a battery case.

Background

The electric appliances using the battery as a main power source are more and more widely used, which prompts the use safety requirement of the battery box structure to be continuously improved, and the design of the battery box has less structure for preventing the battery from being inverted. To the battery case that does not prevent the flip-chip among most prior art, the battery can cause risks such as damage of certain degree to the battery after the flip-chip, reduces the life of battery. To having the battery case of preventing the flip-chip among the prior art, the battery still can the flip-chip enter, and the battery of just the flip-chip entering can not the circular telegram. This design does not actually prevent the battery from being flipped, but only avoids damage to the battery after being flipped, and also brings about confusion to the operator about possible battery failure due to the fact that the battery does not work after being flipped.

To sum up, a battery box is needed, which can prevent the battery from being inversely installed, protect the safety of the battery, and avoid damaging the internal structure of the battery under the situation of inversion.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery box is used for preventing that the battery can the flip-chip advance battery box and avoid destroying the inner structure of battery.

The utility model provides a battery box, include: the device comprises a lower shell, an upper shell, a positive contact piece and a negative contact piece;

the lower shell and the upper shell form an accommodating space for accommodating a battery;

the positive contact piece is arranged in the first groove of the upper shell in an embedded mode; the first groove is used for accommodating the positive electrode of the battery;

the negative contact piece is arranged in the second groove of the upper shell in an embedded mode; the negative contact piece is an elastic component, and the free end of the negative contact piece is positioned outside the second groove in a free state; the first groove and the second groove are oppositely arranged;

the distance from the positive contact to the outer wall of the second groove is not more than the length of the battery when the battery is installed.

In the design, the accommodating space for accommodating the battery is matched with the size of the battery by reserving the first groove and the second groove, so that when the battery is assembled normally, the lug boss of the battery can go deep into the first groove, and the negative electrode of the battery is connected with the elastic component to realize conduction. The reverse installation can not be carried out because of insufficient space, thereby avoiding the problem that the battery is reversely arranged into the battery box. Meanwhile, even if the battery is loaded in a reverse violent manner, the negative electrode of the battery is actually connected with the outer wall of the first groove and is not connected with the positive contact piece in the first groove, so that a passage cannot be formed, and the safety of the battery is ensured.

In one possible design, the positive contact is a conductive plate provided with a positive contact;

the conductive plate is embedded in the first groove.

In one possible design, the positive contact is a conductive plate provided with a positive contact;

the conductive plate is embedded into the first groove and the second groove;

the negative contact is disposed on the conductive plate.

In the two designs, the positive electrode contact pieces are actually two designs of specific forms of the positive electrode contact pieces, one is the positive electrode contact piece for realizing the end-to-end series connection of the batteries, and the positive electrode contact piece in the form is not required to be connected with the negative electrode contact piece with a uniform surface; the other is that the anode contact is lengthened on the basis of the first anode contact, because the anode contact needs to be communicated with the cathode contact when being installed, the anode contact can be conveniently placed in the first groove and the second groove by the design of the current-conducting plate, and then the cathode contact is placed in the second groove and connected with the second groove, so that the assembly between the electrode shrapnels is simplified, and meanwhile, the replacement is convenient.

In one possible design, the upper housing includes an outer housing and an inner housing; the inner shell is provided with a plurality of hollow areas; the outer shell and the inner shell are arranged at set intervals in a laminated mode to form a first groove and a second groove; the outer wall of the second groove is the inner shell;

the positive contact is disposed between the outer housing and the inner housing.

In the above design, the upper case includes an outer case and an inner case, the outer case is an inner and outer side wall of the battery case, and the inner case includes a case between the isolated batteries. The setting mode just carry out the reservation position according to shell body and interior casing based on the range upon range of setting of fixed distance to anodal contact and negative pole contact, thereby setting for of first recess and second recess, thereby can effectual accurate battery case is used for placing the accommodation space of battery and prevents the battery flip-chip.

In one possible design, the positive contact is further provided with a snap-in portion;

the clamping part is used for being fixed on the inner shell.

The first clamping groove for placing the positive contact element in the battery box is designed to be hollow up and down, so that the first clamping groove needs to be fixed with the inner shell through the clamping part of the positive contact element. The both sides of positive contact all set up block portion in the above-mentioned design and fix, can effectually prevent that positive contact from dropping, avoid inserting the battery and carry out the during operation because the dislocation and with battery positive contact failure.

In one possible embodiment, the first recess and the second recess each have an opening; the opening is used for placing the positive contact and the negative contact.

The first groove and the second groove are respectively provided with one end opening to place a positive contact element and a negative contact element, and the positive contact element and the negative contact element can be placed into the corresponding first groove and second groove only by opening design, so that the positive contact element and the negative contact element can be well conducted when a battery is placed.

In a possible design, the lower housing is provided with a pressing platform corresponding to the second groove, and the pressing platform is arranged at the opening of the second groove.

In the design, the negative contact piece is placed in the second groove, the lower shell is provided with the pressing table corresponding to the second groove, the negative contact piece is well supported by the pressing table, the position of the negative contact piece is guaranteed, and inconvenience caused by dislocation of the negative contact piece is prevented.

In one possible design, the battery compartment is a flip-chip configuration.

In the above-mentioned design, the design of the upper and lower separation that the battery case adopted, what the installation of battery case adopted is the flip-chip mode, earlier put the back according to setting for the mode to interior casing and shell body in the casing on the battery case that overturns, place positive contact and negative contact in setting up first draw-in groove and the second draw-in groove, cover the lower casing of battery case after placing to fix through the buckle, finally use with fixing the battery case upset. The flip-chip structure is convenient to mount.

In one possible design, the negative contact is a spring;

the diameter of the spring ring at the fixed end of the spring is larger than that of the spring ring at the free end of the spring;

the diameter of a spring ring at the fixed end of the spring is larger than the width of the second groove;

the fixed end of the spring is embedded into the second groove.

In the above design, the negative contact is a spring, and the spring has good elasticity and can be in good contact with the battery negative electrode. Simultaneously the spring ring of the stiff end of spring need be greater than the second recess, the stiff end embedding of spring just can effectual assurance place the spring between inner housing and shell body in the second recess, guarantees that the position of spring does not fall out.

In one possible design, the positive contact is a metal conductive spring.

The positive contact piece is a metal conductive elastic sheet and has good conductivity. Meanwhile, the metal conductive elastic sheet has a certain touch effect, so that the positive electrode of the battery can be conducted only by contacting the metal conductive elastic sheet.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall battery box according to an embodiment of the present invention;

FIG. 2 is a schematic view of another battery pack according to an embodiment of the present application;

fig. 3 is a schematic view of a positive contact of a battery box according to an embodiment of the present invention;

fig. 4 is a schematic view of another battery case positive contact element provided by the embodiment of the present invention;

fig. 5 is a schematic view of a portion of a battery pack according to an embodiment of the present invention;

FIG. 6 is a schematic view of an embodiment of the present application showing an overall structure of another battery pack;

fig. 7 is a schematic view of a lower case of a battery pack according to an embodiment of the present invention;

fig. 8 is a schematic view of a negative contact member of a battery box according to an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present invention.

Nowadays, as more and more electric appliances using dry batteries as power sources are used, the safety requirements of battery cases are more and more emphasized. The process of designing the structure of the battery case is also more and more refined. The setting of its length of present commonly used anti-reverse installation battery case still is greater than the length of battery, has leaded to the battery still to fall the installation and has gone into, does not have the problem of fine solution battery installation.

In view of this, the embodiment of the utility model provides a battery case, this battery case designs according to battery length through casing separation and accommodation space about adopting, has realized that the battery prevents the design of flip-chip, has avoided some problems that the battery flip-chip appears.

Fig. 1 is a schematic view of an overall battery box according to an embodiment of the present invention. As shown in fig. 1, the battery pack includes at least a lower case 101, an upper case 102, a positive electrode contact 105, and a negative electrode contact 106; the lower case 101 and the upper case 102 constitute an accommodating space for accommodating a battery;

the lower case 101 and the upper case 102 are fixed to form a whole, and there is a space in the whole after the fixing, and the space is used for placing the battery. This reserved space is similar to a glyph. The intermediate partitions (separating the individual cells) in the upper housing 102, such as the three partitions used to separate the four cells in fig. 1, can be set according to specific needs. If some batteries are battery packs formed by two batteries, the battery packs are subjected to middle partition design, and even middle partitions are not arranged.

The positive contact is embedded in the first groove of the upper shell 102; the first groove is used for accommodating the positive electrode of the battery;

wherein the first recess is located in the upper housing 102 and is designed for placing the positive contact 105 and connecting the positive projection of the battery, and for the positive contact 105 is placed in an embedded manner.

The negative contact 106 is embedded in the second groove of the upper housing 101; the negative contact 106 is an elastic member and the free end of the negative contact is located outside the second groove in a free state; the first groove and the second groove are oppositely arranged;

the negative contact 106 is an elastic member having elasticity, and the free end of the negative contact 106 extends out of the second groove in the absence of an external force, that is, the free end of the negative contact 106 is located outside the second groove and exposed. The first groove and the second groove are oppositely arranged in the battery box to form a battery compartment.

The distance from the positive contact to the outer wall of the second groove is not more than the length of the battery when the battery is installed.

Wherein the vertical distance in the battery case from the positive contact 105 to the outer wall of the second recess is less than the length of the battery in a free state; the length of the battery when the battery is mounted in the battery compartment is the same as the vertical distance of the positive contact 105 to the outer wall of the second recess in the battery compartment. In the design, the accommodating space for accommodating the battery is matched with the size of the battery by reserving the first groove and the second groove, so that when the battery is assembled normally, the lug boss of the battery can go deep into the first groove, and the negative electrode of the battery is connected with the elastic component to realize conduction. The reverse installation can not be carried out due to insufficient space, thereby avoiding the problem that the battery is reversely arranged into the battery box. Even reverse violence installation goes in simultaneously, the battery negative pole is in fact continuous with the outer wall of first recess, does not link to each other with the anodal contact in the first recess, therefore can not work and also can not destroy the inner structure of battery.

For example, as shown in fig. 2, fig. 2 is a schematic diagram of a battery box for accommodating a battery according to an embodiment of the present invention, where L1 in fig. 2 is the length of the battery, and L2 is the vertical distance between inner cases of the battery box, it is obvious that L2 is larger than L1, and the larger part can be simply regarded as the length of a battery boss, so that the battery cannot be accommodated when the battery is flipped.

The positive electrode contact 105 may be implemented in various ways, and various positive electrode contacts in the conventional battery pack design may be used as long as the circuit can be conducted. Two designs of positive contact 105 are further provided in the present embodiment.

In one possible embodiment, the positive contact 103 is a conductive plate provided with a positive contact;

the conductive plate is embedded in the first groove.

As shown in fig. 3, fig. 3 is a schematic view of a positive contact of a battery box according to an embodiment of the present invention. The positive contact 103 in fig. 3 does not need to be connected to the negative contact, but only needs to be arranged in the first groove to be connected to the positive electrode of the battery.

In one possible embodiment, the positive contact is a conductive plate provided with a positive contact portion;

the conductive plate is embedded into the first groove and the second groove;

the negative contact is disposed on the conductive plate.

In addition to the positive contact 103 style described above, as shown in fig. 4, fig. 4 is a schematic diagram of another positive contact of battery box according to an embodiment of the present invention, the positive contact 104 in fig. 4 has a conductive plate having an additional positive contact portion in addition to a portion contacting with the positive electrode of the battery, and the positive contact 104 is disposed between the first groove and the second groove for connecting with the negative contact 106 disposed in the second groove, so as to achieve conduction.

There are many connections of the positive contact 105 and the negative contact 106, such as by wires; the design is that the anode contact part conducting plate in the anode contact piece 105 is lengthened to be connected with the cathode contact piece, so that the connection between the anode contact piece and the cathode contact piece can be simplified, and the replacement is convenient.

There are various implementations of the first groove and the second groove, for example, the inner sidewall of the upper housing 102 may be reduced to form a groove embedded in the inner sidewall. The embodiment of the application further provides an implementation mode of first recess and second recess, and the equipment of the battery case of being convenient for is realized.

In one possible embodiment, the upper housing comprises an outer housing and an inner housing; the inner shell is provided with a plurality of hollow areas; the outer shell and the inner shell are arranged in a stacking mode at set intervals to form the first groove and the second groove; the outer wall of the second groove is the inner shell; the positive contact is disposed between the outer housing and the inner housing.

As shown in fig. 5, fig. 5 is a partial schematic view of a battery box provided by an embodiment of the present invention, an inner casing 1021 and an outer casing 1022 in an upper casing 102 form a first groove 100 by setting for a positive contact 105 and a second groove 200 by setting for a negative contact 106. The outer wall of the second groove 200 is the inner housing 1021, and the first groove 100 is located between the second groove 200 and the outer housing 1022, so that the outer housing 1022 of the positive contact 105 is located between the inner housing 1021 and the outer housing 1021. When the battery is installed in a violent upside-down mode, the positive electrode of the battery is connected with the negative electrode contact member 106, the positive electrode of the battery is connected with the outer wall inner shell 1021 of the first groove, and the positive electrode of the battery cannot be connected with the positive electrode contact member 105, so that the internal structure of the battery cannot be damaged. The first groove 200 where the positive contact to be communicated with the negative contact is located is actually a combined groove formed by combining the first groove 200 and the second groove 200. Referring to fig. 6, fig. 6 is an overall schematic view of another battery pack according to the embodiment of the present application, in which the first recess 100 includes a first recess 1001 for accommodating the positive contact 103 and a first recess 1002 for accommodating the positive contact 104; the second groove 200 includes a second groove 2001 and a second groove 2002, and the second groove 2002 and the first groove 1002 form a combined groove.

In one possible embodiment, the positive contact is further provided with a snap-in portion; the clamping part is used for being fixed on the inner shell.

With continued reference to fig. 3, the positive contact 105 is further provided with an engaging portion 300, and the engaging portion 300 is used to fix with the inner housing to effectively ensure the positive contact 105 is connected with the positive electrode of the battery.

In a possible embodiment, the first recess and the second recess each have an opening; the opening is used for placing the positive contact and the negative contact.

Wherein, as will be seen next with reference to fig. 5, the first recess and said second recess are provided with openings 400, respectively, the reason for the openings 400 being that the design of the openings 400 facilitates the installation of the positive contact 105 and the negative contact 106 in order to ensure that the positive contact 105 and the negative contact 106 are placed in the first recess and the second recess, respectively.

In a possible embodiment, the lower housing is provided with a pressing platform corresponding to the second groove, and the pressing platform is arranged at the opening of the second groove.

Fig. 7 is a schematic view of a lower case of a battery pack according to an embodiment of the present invention, as shown in fig. 6, a pressing platform 500 corresponding to a second groove is disposed in the lower case, and the second groove is used for accommodating the negative contact 106, so that the pressing platform 500 is used for supporting the negative contact 106 to prevent the negative contact 106 from being dislocated.

In one possible embodiment, the battery compartment is a flip-chip configuration.

Wherein, the battery case adopts the design of upper and lower separation, carries out the flip-chip in the assembling process. Firstly, the upper shell 102 of the battery box is turned over by 180 degrees; then the positive contact 105 and the negative contact 106 are respectively fitted into the first groove and the second groove in the battery case; then, the lower case 101 and the upper case 102 to which the positive electrode contact 105 and the negative electrode contact 106 are attached are fixed, and the fixed battery pack is turned over for use.

In one possible embodiment, the negative contact 106 is a spring; the diameter of the spring ring at the fixed end of the spring is larger than that of the spring ring at the free end of the spring; the diameter of the spring ring at the fixed end of the spring is larger than the width of the second groove; the fixed end of the spring is embedded into the second groove.

Fig. 8 is a battery case negative pole contact element sketch map that the embodiment of the utility model provides, as shown in fig. 8, negative pole contact element 106 is the spring, and the spring has fine elasticity limit, and the style of spring is a circular cone coil spring like fig. 8, and the spring coil diameter of the stiff end of spring is greater than promptly the spring coil diameter of the free end of spring, the spring coil diameter of the stiff end of spring is greater than the diameter of second recess again simultaneously, can realize in the spring embedding second recess, prevents that the spring from droing, makes the free end of spring can stretch out the second recess again.

In one possible embodiment, the positive contact is a metal conductive elastic sheet.

The metal conductive elastic sheet is used for being connected and conducted with the anode of the battery.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A battery pack, comprising: the device comprises a lower shell, an upper shell, a positive contact piece and a negative contact piece;

the lower shell and the upper shell form an accommodating space for accommodating a battery;

the positive contact piece is arranged in the first groove of the upper shell in an embedding manner; the first groove is used for accommodating the positive electrode of the battery;

the negative contact piece is arranged in the second groove of the upper shell in an embedded mode; the negative contact piece is an elastic component, and the free end of the negative contact piece is positioned outside the second groove in a free state; the first groove and the second groove are oppositely arranged;

the distance from the positive contact to the outer wall of the second groove is not more than the length of the battery when the battery is installed.

2. A battery cartridge according to claim 1, wherein said positive electrode contact is a conductive plate provided with a positive electrode contact portion;

the conductive plate is embedded in the first groove.

3. A battery cartridge as defined in claim 1, wherein said positive contact is a conductive plate provided with a positive contact portion;

the conductive plate is embedded into the first groove and the second groove;

the negative contact is disposed on the conductive plate.

4. A battery compartment as claimed in any one of claims 1 to 3 wherein said upper casing comprises an outer casing and an inner casing; the inner shell is provided with a plurality of hollow areas; the outer shell and the inner shell are arranged in a stacking mode at set intervals to form the first groove and the second groove; the outer wall of the second groove is the inner shell;

the positive contact is disposed between the outer housing and the inner housing.

5. A battery pack as claimed in claim 4, wherein said positive electrode contact is further provided with a catching portion;

the clamping part is used for being fixed on the inner shell.

6. A battery case as defined in claim 4, wherein said first recess and said second recess each have an opening; the opening is used for placing the positive contact and the negative contact.

7. A battery pack as claimed in claim 6, wherein said lower case is provided with a pressing land corresponding to said second recess, said pressing land being disposed at an opening of said second recess.

8. A battery compartment as claimed in claim 7 wherein said compartment is of an inverted construction.

9. A battery pack as claimed in claim 4, wherein said negative contact is a spring;

the diameter of the spring ring at the fixed end of the spring is larger than that of the spring ring at the free end of the spring;

the diameter of a spring ring at the fixed end of the spring is larger than the width of the second groove;

the fixed end of the spring is embedded into the second groove.

10. A battery compartment as claimed in claim 4 wherein said positive contact is a metal conductive tab.

Images