CN211670359U

CN211670359U - Insulating safety cover and copper bar subassembly

Info

Publication number: CN211670359U
Application number: CN202020610636.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-10-13
Anticipated expiration: 2030-04-21

Abstract

The utility model relates to a power battery high pressure protection technical field, the utility model provides an insulating safety cover and copper bar subassembly, above-mentioned insulating safety cover is including having the insulating part that is used for holding copper bar and the external first cavity of intercommunication, be equipped with the first clamping part that is used for with the copper bar joint on the both sides inner wall of first cavity respectively, insulating safety cover is still including having the installation department that is used for the second cavity of holding fastener, the second cavity intercommunication is external and be linked together with first cavity, be equipped with second clamping part and first stop part on the inner wall of second cavity, form spacing space between second clamping part and the first stop part, get into spacing space behind fastener and the second clamping part joint in, above-mentioned insulating safety cover can be in the same place with fastener and copper bar assembly, make power battery's dismouting operation become simple and convenient, effectively improve power battery's dismouting efficiency.

Description

Insulating safety cover and copper bar subassembly

Technical Field

The utility model relates to a power battery high pressure protection technical field especially provides an insulating safety cover and copper bar subassembly.

Background

Power battery is electric automobile's basic power supply unit, it is established ties in proper order through the copper bar subassembly by a plurality of battery modules and constitutes, and the copper bar subassembly is usually by the copper bar, insulating safety cover and fastener constitute, because the copper bar, insulating safety cover and fastener are the independent part of interdispersion, when carrying out PACK equipment to power battery, the copper bar need be taken respectively, insulating safety cover and fastener connect gradually the installation with the three, when dismantling the maintenance to power battery, also need respectively the copper bar, insulating safety cover and fastener are demolishd one by one, it is visible, traditional copper bar subassembly makes power battery's dismouting process become loaded down with trivial details, lead to the dismouting efficiency lower.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide an insulating safety cover and copper bar subassembly aims at solving the loaded down with trivial details and lower technical problem of efficiency of process when power battery carries out the dismouting operation.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions: the utility model provides an insulating safety cover, including having the insulating part that is used for holding copper bar and communicates external first cavity, be equipped with on the both sides inner wall of first cavity respectively be used for with the first clamping part of copper bar joint, insulating safety cover is still including having the installation department that is used for the second cavity of holding fastener, second cavity intercommunication external and with first cavity is linked together, be equipped with second clamping part and first stop part on the inner wall of second cavity, second clamping part with form spacing space between the first stop part, the fastener with get into behind the second clamping part joint in the spacing space.

The embodiment of the utility model provides an insulating safety cover has following beneficial effect at least: when the power battery is subjected to PACK assembly, workers can operate the fastener to connect the copper bar with the external joint through the assembling tool, when the power battery is disassembled and overhauled, the workers only need to use the disassembling tool to screw out the fastener, namely the insulating protective cover, the fastener and the copper bar can be simultaneously taken out, so that the disassembling operation of the power battery is simple and convenient, the disassembly and assembly efficiency of the power battery is effectively improved.

In one embodiment, the first blocking portion is multiple, and the multiple first blocking portions are separated from each other to form an assembly gap.

By adopting the above embodiment, the assembling tool can be inserted into the second cavity from the assembling gap to eject the fastener from the second buckling part, and the fastener is operated to connect the copper bar with the external joint.

In one embodiment, a first opening corresponding to each of the first fastening portions is formed in an inner wall of the first cavity, the first fastening portion includes a first elastic portion and a first fastening portion disposed on the first elastic portion, and one end of the first elastic portion is connected to an edge of the first opening.

Through adopting above-mentioned embodiment, when with copper bar and each first buckle portion joint, first elastic component can produce outside small-amplitude deformation to provide certain space expansion for copper bar card income first buckle portion, make the copper bar can be fixed with first buckle portion joint more easily, thereby make copper bar assembly operation become light laborsaving.

In one embodiment, one side that first card portion deviates from the installation department is equipped with first guide part, the copper bar can be followed the direction of first guide part with first card portion joint.

Through adopting above-mentioned embodiment, effectively reduce the joint resistance between copper bar and the first card portion, the workman uses less dynamics can go into first card portion with the copper bar card, makes copper bar assembly operation light laborsaving more.

In one embodiment, a second opening corresponding to the second fastening portion is formed in the inner wall of the second cavity, the second fastening portion includes a second elastic portion and a second fastening portion disposed on the second elastic portion, and one end of the second elastic portion is connected to an edge of the second opening.

Through adopting above-mentioned embodiment, when with fastener and second buckle portion joint, the second elastic component can produce outside small-amplitude deformation to block into second buckle portion for the fastener and provide certain space expansion, make the fastener can more easily with second buckle portion joint, thereby make fastener assembly operation become light laborsaving.

In one embodiment, a second guide portion is arranged on one side, close to the insulating portion, of the second clamping portion, and the fastening piece can be clamped with the second clamping portion along the guide of the second guide portion.

Through adopting above-mentioned embodiment, effectively reduce the joint resistance between fastener and the second card portion, the workman uses less dynamics can block the fastener card into second card portion to make fastener assembly operation light laborsaving more.

In one embodiment, a third guide portion is arranged on one side, away from the insulating portion, of the second clamping portion, and the fastening piece can be separated from the second clamping portion along the guide of the third guide portion.

Through adopting above-mentioned embodiment, effectively reduce the fastener and break away from the resistance of second card portion, the workman uses less dynamics can be ejecting with the fastener from first card portion to make PACK equipment operation light laborsaving more.

In one embodiment, one end of the insulating part is provided with a second blocking part for abutting of the copper bar.

Through adopting above-mentioned embodiment, when the copper bar butt when the second stop part, the connecting hole of copper bar is just being in the below of second cavity, makes things convenient for fastener and copper bar to aim at and is connected, effectively plays the alignment location effect to the copper bar, further improves the convenience of PACK equipment operation.

In one embodiment, a reinforcing rib is arranged between the insulating part and the mounting part.

Through adopting above-mentioned embodiment, effectively improve above-mentioned insulating protection cover's bulk strength to prevent that the fracture phenomenon from appearing in the junction between insulating part and the installation department.

In order to achieve the above object, the embodiment of the present invention further provides a copper bar assembly, including the copper bar with the connecting hole and being used for passing the fastener connected with the external connector behind the connecting hole, the copper bar assembly further includes the above-mentioned insulating protective cover, the copper bar holding in the first cavity of the insulating protective cover and with first buckle part joint, the fastener holding in the second cavity of the insulating protective cover and with second buckle part joint.

Because the copper bar assembly adopts all the embodiments of the insulating protection cover, at least all the beneficial effects of the embodiments are achieved, and the description is omitted.

In one embodiment, the insulating part of the insulating protection cover is provided with a limiting part, and the copper bar is provided with a limiting hole matched with the limiting part.

Through adopting above-mentioned embodiment, when the copper bar was with first buckle portion joint, spacing portion inserted spacing hole, effectively fixed the copper bar restriction in the first cavity of insulating part.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a copper bar assembly provided in an embodiment of the present invention;

fig. 2 is an exploded view of the copper bar assembly shown in fig. 1;

fig. 3 is a schematic perspective view of the insulation protection cover in the copper bar assembly shown in fig. 1 after being cut;

FIG. 4 is an enlarged view of the insulation shield of FIG. 3 at A;

fig. 5 is an enlarged schematic structural view of a portion B of the copper bar assembly shown in fig. 1;

fig. 6 is a use state diagram of the copper bar assembly shown in fig. 1.

Wherein, in the figures, the respective reference numerals:

10. the insulating protective cover comprises an insulating protective cover 11, an insulating part 111, a first cavity 112, a first buckling part 1121, a first elastic part 1122, a first clamping part 1123, a first guide part 113, a first opening 114, a second blocking part 115, a limiting part 12, an installation part 121, a second cavity 122, a second buckling part 1221, a second elastic part 1222, a second clamping part 1223, a second guide part 1224, a third guide part 123, a first blocking part 124, a second opening 125, a reinforcing rib 20, a copper bar 21, a connecting hole 22, a limiting hole 30, a fastener 31, a head 32, a connecting part 40 and an external connector.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3 and fig. 6, a copper bar assembly includes an insulating protective cover 10, a copper bar 20 having a connecting hole 21, and a fastener 30 for connecting with an external connector 40 after passing through the connecting hole 21, wherein the copper bar 20 and the fastener 30 are both mounted on the insulating protective cover 10.

The insulating protective cover 10 will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, an insulating protective cover 10 includes an insulating portion 11 having a first cavity 111 for accommodating a copper bar 20 and communicating with the outside, first fastening portions 112 for fastening with the copper bar 20 are respectively disposed on inner walls of two sides of the first cavity 111, the insulating protective cover 10 further includes an installation portion 12 having a second cavity 121 for accommodating a fastener 30, the second cavity 121 communicates with the outside and communicates with the first cavity 111, a second fastening portion 122 and a first blocking portion 123 are disposed on an inner wall of the second cavity 121, a limiting space is formed between the second fastening portion 122 and the first blocking portion 123, and the fastener 30 and the second fastening portion 122 are fastened to enter the limiting space. The first blocking portion 123 partially blocks the port of the second cavity 121, on one hand, the first blocking portion is used for preventing the fastener 30 from being removed, and on the other hand, an assembling tool can be inserted into the operating fastener 30 from the unblocked portion.

The copper bar 20 is placed in the first cavity 111 and clamped with the first clamping part 112, the fastener 30 is placed in the second cavity 121 and clamped with the second clamping part 122, the fastener 30 enters the limiting space to prevent the fastener 30 from being separated from the insulating protective cover 10, and therefore the insulating protective cover 10, the fastener 30 and the copper bar 20 are assembled together; as shown in fig. 6, when the PACK assembly is performed on the power battery, a worker only needs to take the insulating protection cover 10, then use an assembly tool to extend into the second cavity 121 and forcibly prop up the fastening member 30 towards the insulating portion 11, so that the fastening member 30 is separated from the second buckling portion 122, the fastening member 30 immediately falls to a connection position between the copper bar 20 and the external connector 40, and the worker can operate the fastening member 30 through the assembly tool to connect the copper bar 20 and the external connector 40; when dismantling and overhauling the power battery, a worker only needs to use a dismantling tool to unscrew the fastener 30, and then can take out the insulating protective cover 10, the fastener 30 and the copper bar 20 simultaneously, so that the dismantling operation of the power battery becomes simple and convenient, and the dismantling efficiency of the power battery is effectively improved. In addition, the fastening piece 30 is always accommodated in the second cavity 121, so that the fastening piece 30 can be prevented from falling to a high-voltage conductive part in the power battery in the dismounting process, and the power battery is effectively prevented from short circuit; in addition, because insulating safety cover 10, fastener 30 and copper bar 20 assemble together and constitute the copper bar subassembly, effectively reduce the warehouse and store the material kind, the warehouse management of being convenient for reduces warehouse management cost.

Specifically, as shown in fig. 2, the fastening member 30 includes a head portion 31 and a connecting portion 32, wherein the head portion 31 enters the limiting space after being snapped with the second snapping portion 122, and the connecting portion 32 is used for connecting the copper bar 20 and the external connector 40. Alternatively, the fastener 30 is a fastening member such as a screw or a rivet.

Specifically, as shown in fig. 1 to fig. 3, in order to improve the assembling stability of the copper bar 20, a plurality of first buckling parts 112 may be respectively disposed on two side wall surfaces of the first cavity 111, and similarly, in order to improve the assembling stability of the fastening member 30, a plurality of second buckling parts 122 are disposed at intervals on an inner peripheral wall of the second cavity 121.

In the present embodiment, the first blocking portion 123 is plural, and the plural first blocking portions 123 are separated from each other to form an assembly gap. A worker may insert the assembly tool into the second cavity 121 from the fitting gap to eject the fastener from the second catching portion 122 and operate the fastener to connect the copper busbar 20 with the external connector 40.

In the present embodiment, please refer to fig. 1 to fig. 3, a first opening 113 corresponding to each first fastening part 112 is formed on an inner wall of the first cavity 111, the first fastening part 112 includes a first elastic part 1121 and a first fastening part 1122 disposed on the first elastic part 1121, and one end of the first elastic part 1121 is connected to an edge of the first opening 113. Alternatively, the first card portion 1122 is a card bar, a card block, a card point, or the like. It should be noted that, only part of the first elastic portion 1121 is connected to the edge of the first opening 113, and the rest of the first elastic portion 1121 is separated from the edge of the first opening 113, so that the rest of the first elastic portion 1121 has a certain movement margin under the action of external force, when the copper bar 20 is clamped with each of the first fastening portions 112, the first elastic portion 1121 is deformed slightly outwards, so as to provide a certain space expansion for the copper bar 20 to be clamped into the first fastening portion 1122, so that the copper bar 20 can be clamped and fixed with the first fastening portion 112 more easily, and thus the assembly operation of the copper bar 20 becomes easy and labor-saving.

In this embodiment, please refer to fig. 1 and fig. 5, a first guiding portion 1123 is disposed on a side of the first clamping portion 1122 away from the mounting portion 12, and the copper bar 20 can be clamped with the first clamping portion 1122 along the guiding of the first guiding portion 1123. Specifically, first guide 1123 can regard as the inclined plane portion, the cambered surface portion or other leading face structures that one side formed that deviates from installation department 12 at first card portion 1122, through setting up first guide 1123, can effectively reduce the joint resistance between copper bar 20 and first card portion 1122, and the workman uses less dynamics can block copper bar 20 into first card portion 1122, makes copper bar 20 assembly operation light laborsaving more.

In the present embodiment, please refer to fig. 1 to fig. 3, a second opening 124 corresponding to the second fastening portion 122 is formed on an inner wall of the second cavity 121, the second fastening portion 122 includes a second elastic portion 1221 and a second fastening portion 1222 disposed on the second elastic portion 1221, and one end of the second elastic portion 1221 is connected to an edge of the second opening 124. Alternatively, the second latching portion 1222 is a latching bar, a latching block, a latching point, etc. It should be noted that, the second elastic portion 1221 is only partially connected to the edge of the second opening 124, and the rest of the second elastic portion 1221 is separated from the edge of the second opening 124, so that the rest of the second elastic portion 1221 has a certain movement margin under the action of an external force, when the fastening member 30 is engaged with the second fastening portion 122, the second elastic portion 1221 is slightly deformed outward, so as to provide a certain amount of space expansion for the fastening member 30 to be engaged with the second fastening portion 1222, so that the fastening member 30 can be more easily engaged with the second fastening portion 122, and thus the assembling operation of the fastening member 30 is easy and labor-saving.

In this embodiment, please refer to fig. 3 and 4, a second guiding portion 1223 is disposed on a side of the second locking portion 1222 close to the insulating portion 11, and the fastening member 30 can be locked with the second locking portion 1222 along the guiding direction of the second guiding portion 1223. Specifically, the second guiding portion 1223 can be regarded as an inclined surface portion, an arc surface portion or other guiding surface structure formed on one side of the second clamping portion 1222 close to the insulating portion 11, and by providing the second guiding portion 1223, the clamping resistance between the fastening member 30 and the second clamping portion 1222 can be effectively reduced, and a worker can clamp the fastening member 30 into the second clamping portion 1222 with a small force, so that the assembly operation of the fastening member 30 is easier and more labor-saving.

In this embodiment, please refer to fig. 3 and 4, a third guiding portion 1224 is disposed on a side of the second locking portion 1222 facing away from the insulating portion 11, and the fastening member 30 can be separated from the second locking portion 1222 along the guiding of the third guiding portion 1224. Specifically, the third guiding portion 1224 may be regarded as an inclined surface portion, an arc surface portion, or another guiding surface structure formed on a side of the second card portion 1222 away from the insulating portion 11, and by providing the second guiding portion 1223, the resistance of the fastening element 30 to disengage from the second card portion 1222 may be effectively reduced, and a worker may eject the fastening element 30 from the first card portion 1122 with a small force, so as to make the PACK assembling operation easier and more labor-saving.

In this embodiment, please refer to fig. 1 and fig. 3, one end of the insulating portion 11 is provided with a second blocking portion 114 for the copper bar 20 to abut against. When copper bar 20 butt when second barrier 114, the connecting hole 21 of copper bar 20 is just being in the below of second cavity 121, makes things convenient for fastener 30 and copper bar 20 to aim at and is connected, effectively plays the alignment positioning effect to copper bar 20, further improves the convenience of PACK equipment operation.

In the present embodiment, please refer to fig. 2 and 3, in order to improve the overall strength of the insulating protection cover 10 and prevent the fracture phenomenon at the joint between the insulating part 11 and the mounting part 12, a rib 125 is disposed between the insulating part 11 and the mounting part 12. Specifically, the reinforcing ribs 125 are provided in plural, and the plural reinforcing ribs 125 are uniformly distributed along the outer peripheral wall of the mounting portion 12.

In the present embodiment, please refer to fig. 1 to 3, the insulation portion 11 of the insulation protection cover 10 is provided with a position-limiting portion 115, and the copper bar 20 is provided with a position-limiting hole 22 for matching with the position-limiting portion 115. When the copper bar 20 is clamped with the first buckling part 112, the limiting part 115 is inserted into the limiting hole 22, so that the copper bar 20 is effectively limited and fixed in the first cavity 111 of the insulating part 11.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an insulating safety cover, is including having the insulating part that is used for holding copper bar and communicates external first cavity, its characterized in that: be equipped with respectively on the both sides inner wall of first cavity be used for with the first clamping part of copper bar joint, insulating safety cover is still including the installation department that has the second cavity that is used for the holding fastener, second cavity intercommunication external world and with first cavity is linked together, be equipped with second clamping part and first stop part on the inner wall of second cavity, second clamping part with form spacing space between the first stop part, the fastener with get into behind the second clamping part joint in the spacing space.

2. The insulating protective cover of claim 1, wherein: the first blocking parts are multiple and are separated from each other to form an assembly gap.

3. The insulating protective cover of claim 1, wherein: the inner wall of the first cavity is provided with first openings corresponding to the first buckling parts, each first buckling part comprises a first elastic part and a first clamping part arranged on the corresponding first elastic part, and one end of each first elastic part is connected to the edge of each first opening.

4. The insulating protective cover of claim 3, wherein: first card portion deviates from one side of installation department is equipped with first guide part, the copper bar can be followed the direction of first guide part with first card portion joint.

5. The insulating protective cover of claim 1, wherein: the inner wall of the second cavity is provided with a second opening corresponding to the second clamping part, the second clamping part comprises a second elastic part and a second clamping part arranged on the second elastic part, and one end of the second elastic part is connected to the edge of the second opening.

6. The insulating protective cover of claim 5, wherein: one side that second card portion is close to insulating part is equipped with the second guide part, the fastener can be followed the direction of second guide part with second card portion joint.

7. The insulating protective cover of claim 5, wherein: one side that the second card portion deviates from the insulating part is equipped with the third guide part, the fastener can follow the direction of third guide part breaks away from the second card portion.

8. The insulating protective cover according to any one of claims 1 to 7, characterized in that: one end of the insulating part is provided with a second blocking part which is used for being abutted against the copper bar.

9. The utility model provides a copper bar subassembly, is including the copper bar that has the connecting hole and be used for passing behind the connecting hole with the fastener of external joint connection, its characterized in that: the copper bar assembly further comprises the insulating protective cover as claimed in any one of claims 1 to 8, wherein the copper bar is accommodated in the first cavity of the insulating protective cover and clamped with the first clamping portion, and the fastening piece is accommodated in the second cavity of the insulating protective cover and clamped with the second clamping portion.

10. The copper bar assembly of claim 9, wherein: the copper bar is provided with a limiting hole matched with the limiting part.