CN218039578U - Battery case and electric energy meter - Google Patents

Abstract

The utility model discloses a battery case and electric energy meter belongs to battery case technical field. The battery box comprises a box component, two groups of conductive components embedded on the box component and a battery pack accommodated in an accommodating cavity of the box component, wherein the battery pack comprises a first electrode and a second electrode, the conductive components comprise connecting terminals and contact pins which are connected with each other, the connecting terminals of the two groups of conductive components are respectively welded on the first electrode and the second electrode, and the contact pins of the two groups of conductive components respectively extend out of the accommodating cavity. The utility model discloses a battery case and electric energy meter reduce resistance and receive environmental impact, solve contact failure, fall the electric problem, improve the reliability, reduce whole volume, satisfy the user demand.

Description

Battery case and electric energy meter

Technical Field

The utility model relates to a battery case technical field especially relates to a battery case and electric energy meter.

Background

In the prior art, the positive electrode of the battery box is in contact connection with the positive terminal of the battery pack in a spring compression mode, and the negative electrode of the battery box is in contact connection with the negative terminal of the battery pack in a spring compression mode. The defects and shortcomings are as follows: 1. the negative electrode of the battery box is in contact with the battery pack in a spring compression mode, and the contact resistance is greatly influenced by the environment and is easy to cause poor contact and power failure; 2. through spring coupling, occupation space is great, leads to the whole volume of battery case great, is difficult to satisfy user's operation requirement.

Therefore, a battery pack and an electric energy meter are needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery case and electric energy meter reduces resistance and receives environmental impact, solves contact failure, falls the electric problem, improves the reliability, reduces whole volume, satisfies the user demand.

To achieve the purpose, the utility model adopts the following technical proposal:

on the one hand, the battery box comprises a box component, two groups of conductive components embedded on the box component and a battery pack accommodated in an accommodating cavity of the box component, wherein the battery pack comprises a first electrode and a second electrode, the conductive components comprise connecting terminals and contact pins which are connected with each other, the connecting terminals of the two groups of conductive components are respectively welded on the first electrode and the second electrode, and the contact pins of the two groups of conductive components respectively extend out of the accommodating cavity.

Optionally, the contact pins are copper pins.

Optionally, the contact pin is riveted to the connection terminal.

Optionally, the connecting terminal is in a sheet shape, and the thickness of the connecting terminal is 0.12mm-0.18mm.

Optionally, the box subassembly includes welded connection's casing and lid, the casing with the lid forms hold the chamber.

Optionally, the length direction of the battery pack is a first direction, the housing and the cover are connected along a second direction, the first direction is perpendicular to the second direction, and the conductive assembly is fixedly arranged on the housing.

Optionally, the first electrode and the second electrode are located at two ends of the battery pack, two ends of the housing along the first direction are respectively provided with a first clamping groove and a second clamping groove, the first connecting terminal is u-shaped, and a first end and a second end of the first connecting terminal are respectively clamped in the first clamping groove and the second clamping groove, the first end is connected with the first electrode, and the second end is connected with the first contact pin.

Optionally, the cartridge assembly further includes an inner cover connected to the housing through a fastener, the second connecting terminal is sandwiched between the inner cover and the housing, and both ends of the second connecting terminal are connected to the second electrode and the second contact pin, respectively.

Optionally, the first electrode and the second electrode are located at the same end of the battery pack, two clamping grooves are formed in the same end of the shell, and the two connecting terminals are respectively limited in the two clamping grooves.

Optionally, the casing is further provided with a fixing portion, the fixing portion is arranged along the first direction, the fixing portion is provided with two through grooves communicated with the accommodating cavity, the contact pins penetrate through the through grooves respectively, the box assembly further comprises an inner cover, and the inner cover is arranged on the through grooves so that the contact pins are clamped between the inner cover and the casing.

Optionally, the cover body and the shell further form a slot communicated with the accommodating cavity, the fixing portion is arranged in the slot, and when the external structure is plugged with the contact pins, the external structure is limited in the slot.

Optionally, the casing and/or the cover body are provided with limiting convex ribs, the limiting convex ribs are matched with the appearance of each battery in the battery pack, and each battery is limited by the limiting convex ribs.

Optionally, the conductive component and the cartridge component are injection molded.

In another aspect, an electric energy meter is provided, which includes the battery box.

The utility model has the advantages that:

the utility model provides a battery box and an electric energy meter, two connecting terminals are respectively welded on a first electrode and a second electrode of a battery pack, two contact pins are respectively connected with the two connecting terminals, and the two pins are respectively connected with an external structure for supplying power; on one hand, the hard connection between the contact pins and the connecting terminals is realized, and the hard connection between the two groups of conductive assemblies and the first electrode and the second electrode of the battery pack is realized respectively, so that the contact resistance is less influenced by the environment, the connection reliability is improved, the phenomena of poor contact or power failure and the like are avoided, and the mass production and the automatic development are facilitated; on the other hand, the structure of connecting terminal is thinner, reduces occupation space, and then reduces the whole volume of battery case to satisfy user's operation requirement. Contact terminal and contact pin are connected, avoid the integrated into one piece structure to guarantee the thickness difference between the two, guarantee the welding effect of thinner contact terminal and first electrode and second electrode, the great contact pin of size guarantees structural rigidity, prevents to warp, improves and connects the reliability. The conductive assembly is integrally embedded in the box assembly, so that the structural connection reliability is improved.

Drawings

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

fig. 2 is an exploded view of a battery pack according to an embodiment of the present invention;

fig. 3 is a left side view of a battery pack according to an embodiment of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view A-A of FIG. 3;

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

FIG. 6 is a cross-sectional view B-B of FIG. 5;

fig. 7 is a schematic structural diagram of a first connection terminal according to a first embodiment of the present invention;

fig. 8 is an exploded view of a battery pack according to a second embodiment of the present invention.

In the figure:

1. a cartridge assembly; 11. a housing; 111. a first card slot; 112. a second card slot; 113. a third card slot; 114. a fixed part; 115. limiting convex ribs; 12. a cover body; 13. an inner cover; 1A, an accommodating cavity; 1B, a slot;

2. a conductive component; 21. a first connection terminal; 211. a first end; 212. a second end; 213. a body portion; 22. a first contact pin; 23. a second connection terminal; 24. a second contact pin;

3. a battery pack; 31. a first electrode; 32. a second electrode.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

The present embodiment provides a battery box, as shown in fig. 1-4, including box subassembly 1, two sets of conductive components 2 embedded on box subassembly 1 and battery pack 3 accommodated in the chamber 1A of box subassembly 1, battery pack 3 includes first electrode 31 and second electrode 32, conductive component 2 includes interconnect's connecting terminal and contact pin, two sets of conductive component 2's connecting terminal weld respectively in first electrode 31 and second electrode 32, two sets of conductive component 2's contact pin stretches out respectively in accommodating chamber 1A.

Two connection terminals are respectively welded to the first electrode 31 and the second electrode 32 of the battery pack 3, two contact pins are respectively connected to the two connection terminals, and the two pins are respectively connected with an external structure for power supply; on one hand, the hard connection between the contact pins and the connecting terminals is realized, and the hard connection between the two groups of conductive components 2 and the first electrode 31 and the second electrode 32 of the battery pack 3 is realized, so that the contact resistance is less influenced by the environment, the connection reliability is improved, the phenomena of poor contact or power failure and the like are avoided, and the mass production and the automatic development are facilitated; on the other hand, the structure of connecting terminal is thinner, reduces occupation space, and then reduces the whole volume of battery case to satisfy user's operation requirement. The contact terminal is connected with the contact pin, so that an integrally formed structure is avoided, the thickness difference between the contact terminal and the contact pin is ensured, the welding effect of the thin contact terminal and the first electrode 31 and the welding effect of the thin contact terminal and the second electrode 32 are ensured, the contact pin with the large size ensures structural rigidity, deformation is prevented, and the connection reliability is improved. The conductive component 2 is integrally embedded in the box component 1, so that the structural connection reliability is improved.

In this embodiment, the first electrode 31 and the second electrode 32 are respectively a positive electrode and a negative electrode, and in other embodiments, the first electrode 31 and the second electrode 32 may also be respectively a negative electrode and a positive electrode, and may be provided as needed, which is not limited.

Since the copper material has better conductivity, optionally, as shown in fig. 1 and fig. 2, the contact pin is a copper needle, which improves the conductivity of the contact pin. According to the use requirement, C5191 phosphor copper gold plating can be adopted, the thickness of the gold plating layer is more than or equal to 0.8 u', the contact resistance is small, and the environmental weather resistance is strong.

In the present embodiment, as shown in fig. 2, the contact terminal may be an aluminum sheet, and the shape and size thereof may be set according to the actual structure and space, without limitation. Optionally, the contact pin is riveted on the connecting terminal, so that the connection reliability is improved, and when the contact pin and the contact terminal are both made of aluminum, welding can be performed.

In this embodiment, the connection terminals are respectively welded to the first electrode 31 and the second electrode 32 by resistance welding, and further optionally, the connection terminals are in a sheet shape, and the thickness of the connection terminals is 0.12mm to 0.18mm, so that the excessive thickness is avoided, and the welding effect is improved. Preferably, the thickness of the connection terminal is 0.15mm.

Optionally, as shown in fig. 1 to 4, the box assembly 1 includes a housing 11 and a cover 12 that are welded together, and the housing 11 and the cover 12 form a containing cavity 1A, so as to facilitate installation of the battery pack 3 and the conductive assembly 2 by adopting a split structure, and by welding, connection reliability and sealing effect are improved, and protection effect on the battery pack 3 is improved. In this embodiment, as shown in fig. 4, the length direction of the battery pack 3 is a first direction, the housing 11 and the cover 12 are connected along a second direction, the first direction is perpendicular to the second direction, and the conductive assembly 2 is fixedly disposed on the housing 11, so as to facilitate assembly. In this embodiment, the first direction is an X direction, the second direction is a Y direction, and the first direction is perpendicular to the second direction. Optionally, the shell 11 and the cover 12 are respectively provided with a clamping groove and a clamping protrusion which are matched with each other, so that the limiting is performed, the subsequent welding is facilitated, and the connection precision is improved.

In this embodiment, as shown in fig. 4-7, the first electrode 31 and the second electrode 32 are located at two ends of the battery pack 3, the first connecting terminal 21 is u-shaped and includes a body 213 and a first end 211 and a second end 212 located at two ends of the body 213, further alternatively, two ends of the housing 11 along the first direction are respectively provided with a first slot 111 and a second slot 112, the first end 211 and the second end 212 of the first connecting terminal 21 are respectively engaged in the first slot 111 and the second slot 112, the first end 211 is connected to the first electrode 31, and the second end 212 is connected to the first contact pin 22. The first card slot 111 and the second card slot 112 are used for limiting two ends of the first connection terminal 21, so that the connection reliability of the first connection terminal 21 with the first electrode 31 and the first contact pin 22 is improved. Optionally, the housing 11 is further provided with a third clamping groove 113 along the first direction, the body portion 213 is limited in the third clamping groove 113, the body portion 213 is prevented from contacting with the peripheral structure of the battery pack 3, short circuit or structural interference is avoided, and reliability is improved; further, a pressing block is provided on the lid 12, and the pressing block is pressed against the body 213 to perform further position limitation. The shape and size of each of the body portion 213, the first end 211 and the second end 212 may be adaptively adjusted according to the actual structure, and are not limited.

Alternatively, as shown in fig. 2-4 and 6, the cartridge assembly 1 further includes an inner cover 13, the inner cover 13 is connected to the housing 11 by a fastener, referring to fig. 4, the second connection terminal 23 is sandwiched between the inner cover 13 and the housing 11, and both ends thereof are respectively connected to the second electrode 32 and the second contact pin 24, so that the second connection terminal 23 is prevented from falling off, and the connection reliability is improved.

Optionally, referring to fig. 3 and 6, a fixing portion 114 is further disposed on the housing 11, the fixing portion 114 is provided with two through grooves communicating with the accommodating cavity 1A along a first direction, two contact pins penetrate through the two through grooves, and the two contact pins are parallel and extend towards the same direction, so as to be conveniently plugged with an external structure; the inner cover 13 is covered on the through groove so that the contact pins are clamped between the inner cover 13 and the shell 11, the contact pins are prevented from falling off or shaking, and the connection reliability is improved; in addition, when the contact pins penetrate through the through grooves, the accommodating space can be blocked.

Optionally, as shown in fig. 4, the cover 12 and the housing 11 further form a slot 1B communicated with the accommodating cavity 1A, the fixing portion 114 is disposed in the slot 1B, and when the external structure is plugged with the contact pin, the external structure is limited in the slot 1B, so that reliability of the battery box when connected with the external structure is improved.

In this embodiment, as shown in fig. 2, the battery pack 3 includes one battery, that is, one battery is disposed in the cartridge assembly 1, and in other embodiments, more batteries may be disposed. Optionally, the housing 11 and the cover 12 are respectively provided with a limiting rib (not shown in the figure), and the limiting rib is adapted to the shape of the battery. In other embodiments, a plurality of cells, for example, a single plurality of cells, may be provided, and the first electrode 31 and the second electrode 32 of the cells are located at two ends, and the cells are connected in series, so that the first electrode 31 and the second electrode 32 are located at two ends of the battery 3.

This embodiment still provides an electric energy meter, and it includes foretell battery case, through the volume joinable reliability that reduces the battery case to, reduced the volume of electric energy meter, convenient overall arrangement has improved the power supply reliability, and the battery case can mass production and automated development, the cost is reduced, and then the cost when having reduced the electric energy meter and using this battery case.

In other embodiments, the battery box may be applied to other devices, and is not limited.

Example two

The present embodiment provides a battery box and an electric energy meter, which are substantially the same as the first embodiment, and the description of the same parts is omitted. The present embodiment differs from the first embodiment in that, as shown in fig. 8, the first electrode 31 and the second electrode 32 are located at the same end of the battery 3, for example, in the present embodiment, the battery 3 includes two cells, the first electrode 31 and the second electrode 32 of the cell are located at both ends, and the two cells are connected in series, so that the first electrode 31 and the second electrode 32 are located at both ends of the battery 3; for another example, the first electrode 31 and the second electrode 32 of the battery are located at the same end, and after being connected in series, the first electrode 31 and the second electrode 32 are still located at the same end of the battery 3; the same end of the shell 11 is provided with two clamping grooves (not shown in the figure), the two connecting terminals are respectively limited in the two clamping grooves, and the two groups of conductive components 2 are symmetrically arranged.

As shown in fig. 8, the housing 11 and the cover 12 are respectively provided with a limiting rib 115, the limiting rib 115 is adapted to the shape of each battery in the battery pack 3, and each battery in the battery pack 3 is limited by the limiting rib 115. In this embodiment, the housing 11 is provided with two limiting ribs 115 along the third direction, which are respectively used for limiting the two battery packs 3. In this embodiment, the third direction is perpendicular to the first direction and the second direction, respectively; in this embodiment, the battery pack 3 is cylindrical, and the limiting rib 115 is provided with a circular groove adapted to the battery pack 3. Further, as shown in fig. 8, the housing 11 is provided with two limiting ribs 115 along the first direction, which are respectively used for limiting the battery pack 3. In other embodiments, three or more than four limiting ribs 115 may be provided, and the limiting ribs are provided as required and are not limited. Specifically, the limiting rib 115 and the housing 11 are integrally formed.

EXAMPLE III

The present embodiment provides a battery box and an electric energy meter, which are substantially the same as the first and second embodiments, and the description of the same parts is omitted. The difference between this embodiment and the first and second embodiments is that the conductive component 2 and the box component 1 are formed by injection molding, which is specifically referred to the prior art and will not be described again.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (14)

1. The utility model provides a battery box, its characterized in that includes box subassembly (1), inlays and locates two sets of conductive component (2) on box subassembly (1) and holding group battery (3) in the chamber (1A) that holds of box subassembly (1), group battery (3) include first electrode (31) and second electrode (32), conductive component (2) are including interconnect's connecting terminal and contact pin, two sets of conductive component (2) the connecting terminal weld respectively in first electrode (31) and second electrode (32), two sets of conductive component (2) the contact pin stretch out respectively in hold chamber (1A).

2. The battery pack of claim 1, wherein said contact pins are copper pins.

3. The battery pack according to claim 1, wherein the contact pin is riveted to the connection terminal.

4. A battery case according to claim 1, wherein the connection terminal is in the form of a sheet, and the connection terminal has a thickness of 0.12mm to 0.18mm.

5. Battery compartment according to claim 1, characterized in that the compartment assembly (1) comprises a welded connection of a casing (11) and a cover (12), the casing (11) and the cover (12) forming the receiving chamber (1A).

6. A battery cartridge as defined in claim 5, wherein the length direction of the battery pack (3) is a first direction, the case (11) and the cover (12) are coupled in a second direction, the first direction is perpendicular to the second direction, and the conductive member (2) is fixedly mounted to the case (11).

7. A battery pack as claimed in claim 6, wherein said first electrode (31) and said second electrode (32) are located at both ends of said battery pack (3), said case (11) is provided at both ends in said first direction with a first engaging groove (111) and a second engaging groove (112), respectively, a first one of said connecting terminals is U-shaped and has a first end (211) and a second end (212) engaged in said first engaging groove (111) and said second engaging groove (112), respectively, said first end (211) being connected to said first electrode (31) and said second end (212) being connected to a first one of said contact pins.

8. A battery pack as claimed in claim 7, wherein said pack assembly (1) further comprises an inner lid (13), said inner lid (13) being connected to said casing (11) by means of a fastener, a second one of said connection terminals being interposed between said inner lid (13) and said casing (11) and having both ends connected to said second electrode (32) and a second one of said contact pins, respectively.

9. A battery pack as claimed in claim 6, wherein said first electrode (31) and said second electrode (32) are located at the same end of said battery pack (3), and said case (11) is provided at the same end thereof with two engaging grooves, and said two connecting terminals are respectively retained in said two engaging grooves.

10. A battery pack as claimed in any one of claims 5 to 9, wherein the casing (11) is further provided with a fixing portion (114), the fixing portion (114) is provided with two through slots communicating with the accommodating chamber (1A) along a first direction, two contact pins are respectively inserted into the two through slots, the pack assembly (1) further comprises an inner cover (13), and the inner cover (13) is disposed in the through slots so as to clamp the contact pins between the inner cover (13) and the casing (11).

11. Battery compartment according to claim 10, wherein the cover (12) and the housing (11) further form a slot (1B) communicating with the receiving cavity (1A), the fixing portion (114) is disposed in the slot (1B), and when an external structure is plugged with the contact pin, the external structure is retained in the slot (1B).

12. A battery box as defined in any one of claims 5 to 9, wherein said case (11) and/or said lid (12) is provided with a restraining rib (115), said restraining rib (115) being adapted to the shape of each battery in said battery pack (3), each battery being restrained by said restraining rib (115).

13. Battery compartment according to claim 5, characterized in that the conductive element (2) is injection moulded with the compartment element (1).

14. An electric energy meter comprising the battery pack according to any one of claims 1 to 13.

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