Contactor protection insulating cover

Abstract

The utility model discloses a contactor protection insulating cover, which belongs to the technical field of electric appliances and comprises an electric control support plate, a contactor is fixed on the electric control support plate, an output power line is connected onto the contactor, a flexible connector is arranged on one side of the contactor far away from the output power line, and a fuse is arranged on the electric control support plate and positioned on one side of the contactor. The fuse is connected with the flexible connector, the fuse is connected with the electric control supporting plate through screw fasteners, the contactor is connected with the flexible connector through screw fasteners, the contactor is connected with the output power line through screw fasteners, the upper portion of the contactor is covered with a protective cover, and the protective cover is connected with the contactor in a clamped mode. According to the utility model, dust, moisture and other impurities can be prevented from entering the contactor to a certain extent, the normal work and performance of the contactor are prevented from being influenced, the fault occurrence probability is reduced, the impact of external objects can be prevented, and a certain electromagnetic shielding function is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical appliances, and particularly relates to a contactor protection insulating cover. Background Art

[0002] Lithium batteries have the characteristics of high energy ratio, long service life, high rated voltage, high power tolerance, low self-discharge rate, light weight, strong adaptability to high and low temperatures, and environmental friendliness. Therefore, they are widely used in many fields such as consumer electronics, electric vehicles, and energy storage systems, becoming an indispensable energy storage technology in modern society, and their application scope is still expanding and deepening. As an indispensable control unit in lithium batteries, the contactor realizes the control and protection of the charging and discharging process of lithium batteries, and has functions such as charge and discharge control, circuit protection, multi-module cascading, temperature control, and adhesion detection.

[0003] In the prior art, most contactors inside lithium batteries do not have protective covers, making the contacts exposed outside, with the risk of accidental contact and the inability to guarantee safety. Moreover, dust and water vapor can directly contact the contactor contacts, making the contacts more prone to oxidation and resulting in poor contact. Content of the Utility Model

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0005] A contactor protection insulating cover includes an electric control support plate, on which a contactor is fixed. An output power line is connected to the contactor. A flexible connection is provided on one side of the contactor away from the output power line. A fuse is provided on the electric control support plate and on one side of the contactor. The fuse is connected to the flexible connection. The connections between the fuse and the electric control support plate, between the contactor and the flexible connection, and between the contactor and the output power line are all connected by screw fasteners. A protective cover is provided over the upper part of the contactor, and the protective cover is snap-fitted to the contactor.

[0006] Further, a plurality of heat dissipation holes are provided on the protective cover.

[0007] Further, the plurality of heat dissipation holes are strip-shaped holes spaced along the width direction of the protective cover.

[0008] Further, a card slot is provided on the contactor, and a card block adapted to the card slot is provided on the inner side of the protective cover.

[0009] Further, the material of the protective cover is plastic.

[0010] Further, the side of the protective cover on the output power line side is set as an opening, and a fixing hole is provided on the protective cover near the fuse.

[0011] Furthermore, the size of the fixing hole is adapted to the size of the flexible connection.

[0012] Advantages of the present utility model:

[0013] (1) Protect against external interference: The clamping block on the protective cover is clamped with the clamping groove on the contactor, which is convenient for installation; to a certain extent, it can block dust, moisture, sundries, etc. from entering the interior of the contactor, avoid these factors affecting the normal operation and performance of the contactor, and reduce the probability of faults.

[0014] (2) Protect against physical damage: It can prevent external objects from hitting and knocking the contactor, and reduce problems such as contact deformation, structural damage, and short - circuit of positive and negative poles caused by collision.

[0015] (3) Prevent accidental touch: Avoid accidental touch of the operating mechanism or contacts of the contactor by personnel, and reduce the risk of circuit faults caused by accidental touch.

[0016] (4) Enhance insulation: Contribute to improving the overall insulation performance of the contactor, and prevent the influence of equipment safety due to electric leakage or short - circuit.

[0017] (5) Resist impact and vibration: In some environments with vibration or possible impact, the protective cover can provide a certain buffer for the contactor and reduce damage to the internal structure of the contactor.

[0018] (6) Electromagnetic shielding: Some protective covers have a certain electromagnetic shielding function, which can reduce the interference of external electromagnetic signals to the contactor.

[0019] (7) Improve safety: Reduce the risk of electric shock. Especially in places where people are easily accessible, the protective cover can effectively isolate the live parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the explosion diagram of the present utility model;

[0021] Figure 2 is the schematic diagram after the installation of the present utility model;

[0022] Among them, 1, electric control support plate; 2, contactor; 3, protective cover; 4, output power line; 5, flexible connection; 6, fuse; 7, screw fastener; 8, clamping block; 9, clamping groove; 10, heat dissipation hole; 11, fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model provides a contactor protection insulating cover. The technical solution of the present utility model will be described in detail below with reference to the drawings to make it easier to understand and master.

[0024] Embodiment 1

[0025] Reference Figure 1 - Figure 2 , a contactor protection insulating cover, including an electric control support plate 1, a contactor 2 is fixed on the electric control support plate 1, an output power line 4 is connected to the contactor 2, a flexible connection 5 is provided on one side of the contactor 2 away from the output power line 4, a fuse 6 is provided on the electric control support plate 1 and on one side of the contactor 2, the fuse 6 is connected to the flexible connection 5, and between the fuse 6 and the electric control support plate 1, between the contactor 2 and the flexible connection 5, and between the contactor 2 and the output power line 4 are all connected by screw fasteners 7. A protective cover 3 is provided above the contactor 2, and the protective cover 3 is snap-connected to the contactor 2.

[0026] In this embodiment, a plurality of heat dissipation holes 10 are provided on the protective cover 3 to achieve heat dissipation.

[0027] In this embodiment, the plurality of heat dissipation holes 10 are strip-shaped holes spaced along the width direction of the protective cover 3, so that the heat dissipation surface is larger and the heat dissipation effect is better.

[0028] In this embodiment, a card slot 9 is provided on the contactor 2, and a card block 8 adapted to the card slot 9 is provided on the inner side of the protective cover 3. The card block 8 is snap-connected to the card slot 9 to realize the fixation of the contactor 2 and the protective cover 3, which is convenient for installation.

[0029] In this embodiment, the material of the protective cover 3 is plastic, which protects the contactor 2 from being collided by external objects and enhances the insulation.

[0030] In this embodiment, the side of the protective cover 3 on the output power line 4 side is set as an opening to facilitate the connection between the output power line 4 and the contactor 2. A fixing hole 11 is provided on the protective cover 3 near the fuse 6 to provide space for the connection between the flexible connection 5 and the fuse 6.

[0031] In this embodiment, the size of the fixing hole 11 is adapted to the size of the flexible connection 5, which increases the tightness of the protective cover 3.

[0032] The technical solution of the present utility model has been fully described above. It should be noted that the specific implementation manner of the present utility model is not limited by the above description. All technical solutions formed by those of ordinary skill in the art by equivalent transformation or equivalent transformation in terms of structure, method or function and the like according to the spirit of the present utility model fall within the protection scope of the present utility model.

Claims

1. A contactor protection insulating cover, comprising an electric control support plate, a contactor is fixed on the electric control support plate, an output power line is connected to the contactor, a flexible connection is provided on a side of the contactor away from the output power line, a fuse is provided on the electric control support plate and on one side of the contactor, the fuse is connected to the flexible connection, and the fuse and the electric control support plate, the contactor and the flexible connection, and the contactor and the output power line are all connected by screw fasteners, characterized in that, The upper part of the contactor is covered with a protective cover, and the protective cover is snap-connected to the contactor.

2. The contactor protection insulating cover according to claim 1, wherein A plurality of heat dissipation holes are provided on the protective cover.

3. The contactor protection insulating cover according to claim 2, characterized in that, The plurality of heat dissipation holes are strip-shaped holes spaced along the width direction of the protective cover.

4. The contactor protection insulating cover according to claim 1, characterized in that, A clamping groove is provided on the contactor, and a clamping block adapted to the clamping groove is provided on the inner side of the protective cover.

5. The contactor protection insulating cover according to claim 4, wherein The material of the protective cover is plastic.

6. The contactor protection insulating cover according to claim 1, wherein, An opening is provided on the protective cover on the side of the output power line, and a fixing hole is provided on the protective cover near the fuse.

7. The contactor protection insulating cover according to claim 6, characterized in that, The size of the fixing hole is adapted to the size of the flexible connection.

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