Power battery top cover insulation structure

Abstract

The utility model relates to the technical field of batteries, and provides a power battery top cover insulation structure which comprises an upper top cover, lower plastic cement, a pole assembly, two groups of side clamping plates, a central elastic clamping ring, a heat dissipation plate and an anti-impact assembly, the two groups of side clamping plates are fixedly arranged on two sides of the lower plastic cement, and the central elastic clamping ring is arranged on the upper top cover. The upper top cover is clamped with the lower plastic through the side clamping plate, the central elastic clamping ring is arranged on the lower side of the upper top cover, the pole assemblies are fixedly installed on the two sides of the lower plastic, the upper ends of the pole assemblies penetrate through the side clamping plate and are arranged on the upper top cover, the heat dissipation plate is arranged in the middle of the lower plastic, and the anti-impact assembly is fixedly installed on the lower side of the lower plastic. The connector is simple in structure and convenient to use, the upper top cover and the lower plastic can be quickly connected, and the upper top cover and the lower plastic cannot fall off after being connected and working for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a power battery top cover insulation structure. BACKGROUND

[0002] The top cover component is an important component of the power battery, mainly including a top cover sheet, a positive pole and a negative pole. Generally, during the assembly of the battery, a resistance component is arranged between the positive pole and the top cover sheet to realize electrical connection, and an insulating plastic part is arranged between the negative pole and the top cover sheet to ensure the insulation performance therebetween.

[0003] For example, the application number CN201820500803.7 discloses a power battery top cover insulation structure, which comprises a top cover sheet and a lower plastic arranged at the lower end of the top cover sheet. A blast hole and a blast sheet matched with the blast hole are arranged in the middle of the top cover sheet. The lower plastic is of an integrated structure, comprising a positive insulation part arranged at the upper end of a positive pole of the battery, a negative insulation part arranged at the upper end of a negative pole of the battery, and a safety groove arranged at the lower end of the blast sheet. The safety groove has the same shape as the blast sheet and is smaller in size than the blast sheet.

[0004] However, the fixing performance between the top cover and the lower plastic in the above device is general, and the top cover will fall off the lower plastic after being used for a period of time, resulting in a damage risk. UTILITY MODEL CONTENT

[0005] In order to solve the problem of general fixing performance between the top cover and the lower plastic in the existing device, the top cover will fall off the lower plastic after being used for a period of time, resulting in a damage risk, the utility model provides a power battery top cover insulation structure to solve the problem.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A power battery top cover insulation structure comprises an upper top cover, a lower plastic, a pole assembly, a side clamping plate, a center elastic clamping ring, a heat dissipation plate and an anti-impact assembly. The side clamping plate is provided with two groups, and the two groups of side clamping plates are fixedly installed on both sides of the lower plastic. The upper top cover is clamped with the lower plastic through the side clamping plate. The center elastic clamping ring is arranged on the lower side of the upper top cover. The pole assembly is fixedly installed on both sides of the lower plastic. The upper end of the pole assembly is arranged on the upper top cover through the side clamping plate. The heat dissipation plate is arranged in the middle of the lower plastic. The anti-impact assembly is fixedly installed on the lower side of the lower plastic.

[0008] Preferably, the upper top cover comprises: an upper top cover body, pole allowing holes and clamping edges, the pole allowing holes and clamping edges are provided in two groups, the two groups of pole allowing holes and clamping edges are arranged on the two sides of the upper top cover body respectively, the clamping edges are arranged on the lower side of the upper top cover body, the upper top cover body is clamped with the side clamping plate through the clamping edges, the heat dissipation holes are arranged in the middle part of the upper top cover body, and the central elastic clamping ring is arranged on the lower side of the heat dissipation holes.

[0009] Preferably, the central elastic clamping ring comprises: a clamping ring body, a first elastic clamping plate and a second elastic clamping plate, the clamping ring body is arranged on the lower side of the heat dissipation hole, the two sides of the clamping ring body are provided with allowing grooves, the first elastic clamping plate and the second elastic clamping plate are arranged in the two groups of allowing grooves respectively, and the lower plastic is provided with clamping grooves matched with the first elastic clamping plate and the second elastic clamping plate.

[0010] Preferably, the edge of the side clamping plate is transitioned through a slope.

[0011] Preferably, the pole assembly comprises: a pole, a pole mounting plate and a limiting sleeve, the lower end of the pole is inserted into the pole mounting plate fixedly arranged on the lower side of the lower plastic and is fixedly connected, and the upper end of the pole is arranged on the upper top cover through the limiting sleeve fixedly arranged on the upper side of the lower plastic.

[0012] Preferably, the anti-impact assembly comprises: a mounting bottom plate, an elastic element and a protective plate, the mounting bottom plate is fixedly arranged in the groove arranged on the lower side of the lower plastic, one end of the elastic element is fixedly connected with the mounting bottom plate, the other end of the elastic element is fixedly connected with the protective plate, and the middle part of the protective plate is provided with a heat dissipation allowing groove.

[0013] Preferably, the upper side of the central elastic clamping ring is provided with a dust screen plate.

[0014] The utility model discloses a kind of power battery top covers, including upper top cover, lower plastic, side clamping plate and central elastic clamping ring, upper top cover is fixedly connected with lower plastic through side clamping plate and central elastic clamping ring. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation to the utility model.

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 is the structure diagram of the lower plastic of the utility model;

[0018] Figure 3 is the sectional view of the utility model;

[0019] Figure 4 is the structure diagram of the upper top cover of the utility model;

[0020] Figure 5 is the structure diagram of the center elastic clamping ring of the utility model;

[0021] Figure 6 is the structure diagram of the pole assembly of the utility model;

[0022] Figure 7 is the structure diagram of the anti-impact assembly of the utility model.

[0023] Explanation of reference signs:

[0024] 1, upper top cover; 2, lower plastic; 3, pole assembly; 4, side clamping plate; 5, center elastic clamping ring; 6, heat dissipation plate; 7, anti-impact assembly; 11, upper top cover body; 12, pole clearance hole; 13, heat dissipation hole; 14, clamping edge; 51, clamping ring body; 52, first elastic clamping plate; 53, second elastic clamping plate; 31, pole; 32, pole mounting plate; 33, limiting sleeve; 71, mounting bottom plate; 72, elastic element; 73, protection plate. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1, combined with Figure 1 , Figure 2 and Figure 3 Explanation:

[0029] An insulating structure for a power battery top cover includes: an upper top cover 1, a lower plastic 2, a terminal post assembly 3, side snap-fit ​​plates 4, a central elastic snap-fit ​​ring 5, a heat dissipation plate 6, and an anti-impact assembly 7. Two sets of side snap-fit ​​plates 4 are provided, and the two sets of side snap-fit ​​plates 4 are fixedly installed on both sides of the lower plastic 2. The upper top cover 1 is snapped into the lower plastic 2 via the side snap-fit ​​plates 4. The central elastic snap-fit ​​ring 5 is located on the lower side of the upper top cover 1. The terminal post assembly 3 is fixedly installed on both sides of the lower plastic 2, with the upper end of the terminal post assembly 3 passing through the side snap-fit ​​plates 4 and mounted on the upper top cover 1. The heat dissipation plate 6 is located in the middle of the lower plastic 2. The anti-impact assembly 7 is fixedly installed on the lower side of the lower plastic 2.

[0030] By setting a double-clamping structure with side clamping plate 4 and central elastic clamping ring 5, it is ensured that the upper cover 1 and the lower plastic 2 will not fall off after being connected. The central elastic clamping ring 5 can quickly assemble the upper cover 1 and the lower plastic 2, improving assembly efficiency. The heat dissipation plate 6 and the central elastic clamping ring 5 can ensure that the heat dissipation vents of the power battery are unobstructed, ensuring heat dissipation effect. The anti-impact component 7 can reduce the impact of the battery electrolyte on the upper cover 1 of the battery under stress.

[0031] The edge of the side snap-fit ​​plate 4 is transitioned by a bevel, which facilitates the connection between the top cover 1 and the side snap-fit ​​plate 4.

[0032] The upper side of the central elastic snap ring 5 is provided with a dustproof mesh plate to prevent external particles from entering the slot.

[0033] Example 2, based on Example 1, combined with... Figure 4 Explanation:

[0034] The upper cover 1 comprises an upper cover body 11, pole clearance holes 12, heat dissipation holes 13 and clamping edges 14, the pole clearance holes 12 and the clamping edges 14 are provided in two groups, the two groups of pole clearance holes 12 and the clamping edges 14 are respectively arranged on the two sides of the upper cover body 11, the clamping edges 14 are arranged on the lower side of the upper cover body 11, the upper cover body 11 is clamped with the side clamping plate 4 through the clamping edges 14, the heat dissipation holes 13 are arranged in the middle of the upper cover body 11, and the central elastic clamping ring 5 is arranged on the lower side of the heat dissipation holes 13.

[0035] In this way, the clamping edges 14 are used in cooperation with the side clamping plate 4, the side clamping plate 4 can ensure that the upper cover body 11 is accurately docked, the pole clearance holes 12 are used for arranging the pole assembly 3, and the heat dissipation holes 13 are used for ensuring the heat dissipation capacity.

[0036] In the third embodiment, in combination with Figure 5 the second embodiment, the following is described:

[0037] The central elastic clamping ring 5 comprises a clamping ring body 51, a first elastic clamping plate 52 and a second elastic clamping plate 53, the clamping ring body 51 is arranged on the lower side of the heat dissipation holes 13, the clamping ring body 51 is provided with clearance grooves on the two sides, the first elastic clamping plate 52 and the second elastic clamping plate 53 are respectively arranged in the two groups of clearance grooves, and the lower plastic 2 is provided with clamping grooves used in cooperation with the first elastic clamping plate 52 and the second elastic clamping plate 53.

[0038] In this way, the first elastic clamping plate 52 and the second elastic clamping plate 53 cooperate with the clamping grooves to stably connect the upper cover 1 and the lower plastic 2, and the annular clamping ring body 51 can ensure that the device has a larger heat dissipation space, thereby improving the service life of the battery.

[0039] In the fourth embodiment, in combination with Figure 6 the third embodiment, the following is described:

[0040] The pole assembly 3 comprises a pole 31, a pole mounting plate 32 and a limiting sleeve 33, the lower end of the pole 31 is fixedly connected with the pole mounting plate 32 arranged on the lower side of the lower plastic 2, and the upper end of the pole 31 passes through the limiting sleeve 33 fixedly arranged on the upper side of the lower plastic 2 and is arranged on the upper cover 1.

[0041] In this way, the pole mounting plate 32 and the limiting sleeve 33 ensure the stability of the pole 31 and prevent the pole 31 from being inclined after being used for many times.

[0042] In the fifth embodiment, in combination with

[0043] The anti-impact assembly 7 comprises a mounting bottom plate 71, an elastic element 72 and a protective plate 73, the mounting bottom plate 71 is fixedly installed in a groove arranged at the lower side of the lower plastic 2, one end of the elastic element 72 is fixedly connected with the mounting bottom plate 71, the other end of the elastic element 72 is fixedly connected with the protective plate 73, and a heat-dissipation air-allowing slot is arranged in the middle of the protective plate 73.

[0044] In this way, the protective plate 73 is used for preventing the electrolyte from colliding with the lower plastic 2 rigidly, provides a certain buffering effect for the collision, and further protects the battery and improves the service life of the battery.

[0045] The working principle of the utility model is as follows: in use, the pole assembly 3, the side clamping plate 4, the center elastic clamping ring 5, the heat-dissipation plate 6 and the anti-impact assembly 7 are fixedly connected with the upper top cover 1 and the lower plastic 2 respectively, then the upper top cover 1 is buckled on the lower plastic 2, the side clamping plate 4 is used for limiting the initial position of the upper top cover 1, the center elastic clamping ring 5 is used for guaranteeing the accuracy of the connection between the upper top cover 1 and the lower plastic 2 and improving the stability after the connection, the utility model has the advantages of reasonable structure and convenient use, can quickly connect the upper top cover and the lower plastic, and guarantees that the upper top cover and the lower plastic will not fall off after being connected and working for a long time.

[0046] For those skilled in the art, the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0047] The above is only the preferred embodiment of the utility model and does not limit the utility model, and any slight modification, equivalent replacement and improvement according to the technical essence of the utility model on the above embodiments should be included in the protection scope of the technical scheme of the utility model.

Claims

1. A power cell top cover insulation structure, characterized in that, The utility model relates to a battery pack, including: Upper top cover (1), lower plastic (2), pole post assembly (3), side clamping plate (4), center elastic clamping ring (5), heat dissipation plate (6) and anti-impact assembly (7), the side clamping plate (4) is provided with two groups, and two groups of side clamping plate (4) are fixedly installed on the both sides of lower plastic (2), and upper top cover (1) is clamped with lower plastic (2) through side clamping plate (4), and center elastic clamping ring (5) is arranged on the downside of upper top cover (1), and pole post assembly (3) is fixedly installed on the both sides of lower plastic (2), and the upper end of pole post assembly (3) is arranged on the upper top cover (1) through side clamping plate (4), and heat dissipation plate (6) is arranged in the middle of lower plastic (2), and anti-impact assembly (7) is fixedly installed on the downside of lower plastic (2).

2. The power battery top cover insulation structure according to claim 1, characterized in that, The upper top cover (1) includes: upper top cover body (11), pole post clearance hole (12), heat dissipation hole (13) and clamping edge (14), the pole post clearance hole (12) and clamping edge (14) are provided with two groups, and two groups of pole post clearance hole (12) and clamping edge (14) are arranged on the both sides of upper top cover body (11) respectively, and clamping edge (14) is arranged on the downside of upper top cover body (11), and upper top cover body (11) is clamped with side clamping plate (4) through clamping edge (14), and heat dissipation hole (13) is arranged in the middle of upper top cover body (11), and center elastic clamping ring (5) is arranged on the downside of heat dissipation hole (13).

3. The power battery top cover insulation structure according to claim 2, characterized in that, The center elastic clamping ring (5) includes: clamping ring body (51), first elastic clamping plate (52) and second elastic clamping plate (53), the clamping ring body (51) is arranged on the downside of heat dissipation hole (13), and the both sides of clamping ring body (51) are provided with clearance grooves, and first elastic clamping plate (52) and second elastic clamping plate (53) are arranged in two groups of clearance grooves respectively, and the upper plastic (2) is provided with clamping groove for cooperating with first elastic clamping plate (52) and second elastic clamping plate (53).

4. The power battery top cover insulation structure according to claim 1, characterized in that, The edge of side clamping plate (4) is transitioned through bevel.

5. The power battery top cover insulation structure according to claim 1, characterized in that, The pole post assembly (3) includes: pole post (31), pole post mounting plate (32) and limiting sleeve (33), the lower end of pole post (31) is inserted into the fixed connection with the pole post mounting plate (32) installed on the downside of lower plastic (2), and the upper end of pole post (31) is arranged on the upper top cover (1) through the limiting sleeve (33) fixedly installed on the upside of lower plastic (2).

6. The power battery top cover insulation structure according to claim 1, characterized in that, The anti-impact assembly (7) includes: mounting bottom plate (71), elastic element (72) and protection plate (73), the mounting bottom plate (71) is fixedly installed in the recess provided on the downside of lower plastic (2), one end of elastic element (72) is fixedly connected with mounting bottom plate (71), the other end of elastic element (72) is fixedly connected with protection plate (73), and the middle part of protection plate (73) is provided with heat dissipation clearance groove.

7. The power battery top cover insulation structure according to claim 1, characterized in that, The upside of center elastic clamping ring (5) is provided with dust screen plate.

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