Relay inverted installation structure

Abstract

The utility model relates to the technical field of vehicle-mounted electrical equipment, in particular to a relay inverted installation structure which comprises a box body, an upper cover covering the box body and a relay located between the upper cover and the box body, the upper cover is fixedly connected with the box body, a copper bar is fixed to the bottom of the box body, and the relay is installed on the copper bar in an inverted mode. The relay is fixedly connected with the copper bar through a bolt, and an elastic buffer piece is arranged between the relay and the upper cover. According to the invention, the elastic buffer piece is arranged between the relay and the upper cover, so that the stability of the relay is improved, the shaking of the relay is reduced, and the problems of bolt loosening, box body damage and the like caused by the shaking of the relay are solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle-mounted electrical equipment, and in particular to an inverted installation structure of a relay. Background Art

[0002] On-board electrical equipment refers to electrical equipment installed on vehicles. Since the vehicle may encounter bumpy road conditions during driving, on-board electrical equipment needs to have a certain degree of shock resistance.

[0003] Taking the battery disconnect unit (BDU) of new energy vehicles as an example, there is a battery disconnect unit, which includes a box body and an upper cover arranged on the box body, a copper busbar is embedded in the bottom of the box body, a relay is invertedly installed on the copper busbar, the relay and the copper busbar are connected by bolts, and a limiting structure is provided on the box body corresponding to the relay.

[0004] At present, the relay is fixed by the bolts and limit structure mentioned above, but the anti-seismic ability of this fixing structure is not ideal, and the stability of the relay is not good enough. When the vehicle encounters bumps, the relay is prone to shake, causing the bolts to gradually loosen, resulting in poor contact and heat at the bolts. In severe cases, the shaking of the relay will also cause damage to the plastic box. Summary of the invention

[0005] In order to solve the above problems, the present disclosure provides an inverted installation structure of a relay.

[0006] Specifically, the technical solution of the present disclosure is:

[0007] A relay inverted installation structure comprises a box body, an upper cover arranged on the box body and a relay located between the upper cover and the box body, wherein the upper cover is fixedly connected to the box body, a copper bar is fixed to the bottom of the box body, the relay is invertedly installed on the copper bar, the relay and the copper bar are fixedly connected by bolts, and an elastic buffer is arranged between the relay and the upper cover.

[0008] In one embodiment, the elastic buffer is an elastic top rod, one end of the top rod is fixed on the upper cover, and the other end of the top rod is against the relay.

[0009] In one embodiment, a limiting groove is provided on the relay corresponding to the push rod, and the push rod is inserted into the limiting groove.

[0010] In one embodiment, a fixing seat is provided on the upper cover corresponding to the ejector rod, and a slot is provided on the fixing seat, and the ejector rod is inserted into the slot.

[0011] In one embodiment, a convex ridge is provided on the inner side wall of the slot, and the convex ridge presses against the ejector rod to fix the ejector rod in the slot.

[0012] In one embodiment, the convex edge is provided with a guide slope, and the guide slope is used to guide the ejector rod when the ejector rod is inserted into the slot.

[0013] Beneficial technical effects of the present disclosure:

[0014] The present invention improves the stability of the relay and reduces the shaking of the relay by arranging an elastic buffer between the relay and the upper cover, thereby improving the problems of loose bolts and box body damage caused by the shaking of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A top view of a battery pack disconnecting unit according to an embodiment of the present disclosure;

[0016] Figure 2 for Figure 1 A cross-sectional view of a disconnect unit of a battery pack shown;

[0017] Figure 3 for Figure 2 A partial enlarged view of

[0018] Figure 4 for Figure 3 A partial enlarged view of

[0019] Figure 5 for Figure 1 A bottom view of the upper cover shown;

[0020] Figure 6 for Figure 5 A partial enlarged view of . DETAILED DESCRIPTION

[0021] The present disclosure is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In one embodiment, if Figures 1 to 6 As shown, a battery pack circuit breaker unit adopts the inverted relay installation structure provided by the present disclosure, the battery pack circuit breaker unit comprises a box body 1, an upper cover 2 covered on the box body 1, and a relay 3 located between the upper cover 2 and the box body 1, the upper cover 2 is fixedly connected to the box body 1, a copper bar 4 is fixed to the bottom of the box body 1, the relay 3 is invertedly installed on the copper bar 4, the relay 3 and the copper bar 4 are fixedly connected by bolts 5, and an elastic buffer is provided between the relay 3 and the upper cover 2. The elastic buffer can improve the stability of the relay 3 and reduce the shaking of the relay 3, thereby improving the problem of loosening of the bolts 5 and damage to the box body 1 caused by the shaking of the relay 3.

[0023] In this embodiment, the elastic buffer is an elastic top rod 6, one end of which is fixed on the upper cover 2, and the other end of which is against the relay 3. The top rod 6 can be made of an elastic material, such as rubber. In other embodiments, the elastic buffer can also be other mechanisms with a certain degree of elasticity, such as a spring.

[0024] In this embodiment, a limiting groove 31 is provided on the relay 3 corresponding to the push rod 6 , and the push rod 6 is inserted into the limiting groove 31 to prevent the push rod 6 from being separated from the relay 3 .

[0025] In this embodiment, a fixing seat 21 is provided on the upper cover 2 corresponding to the push rod 6 , and a slot 210 is provided on the fixing seat 21 . The push rod 6 is inserted into the slot 210 to prevent the push rod 6 from being separated from the upper cover 2 .

[0026] In this embodiment, a ridge 211 is provided on the inner wall of the slot 210, and the ridge 211 presses against the ejector pin 6 to fix the ejector pin 6 in the slot 210. Using a plurality of ridges 211 to fix the ejector pin 6 can reduce the difficulty of inserting the ejector pin 6 into the slot 210. In other embodiments, the ejector pin 6 can be directly interfered with the slot 210 to achieve fixation between the ejector pin 6 and the upper cover 2.

[0027] In this embodiment, see Figure 4 The convex rib 211 is provided with a guide slope A, which is used to guide the push rod 6 when it is inserted into the slot 210, thereby reducing the resistance during assembly. When assembling the upper cover 2, first insert the two ends of the push rod 6 into the slot 210 and the limit groove 31 respectively. In the process of locking the upper cover 2 onto the box body 1, the distance between the upper cover 2 and the relay 3 becomes smaller and smaller. Under the guidance of the guide slope A, the push rod 6 gradually goes deeper into the slot 210, and is finally clamped in the slot 210 by the convex rib 211.

[0028] The above-mentioned relay inverted installation structure in which an elastic buffer is provided between the relay and the upper cover can also be applied to other vehicle-mounted electrical equipment, and is not limited to the battery pack disconnecting unit of this embodiment.

[0029] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. It should be noted that any modification, equivalent replacement, improvement, etc. made by a person skilled in the art within the spirit and principle of the present disclosure after reading this specification should be included in the protection scope of the present disclosure.

Claims

1. A relay inverted installation structure, comprising a box body, an upper cover arranged on the box body, and a relay located between the upper cover and the box body, wherein the upper cover is fixedly connected to the box body, a copper bar is fixed to the bottom of the box body, the relay is invertedly installed on the copper bar, and the relay and the copper bar are fixedly connected by bolts, characterized in that: An elastic buffer is arranged between the relay and the upper cover.

2. The relay inverted installation structure according to claim 1, characterized in that: The elastic buffer is an elastic top rod, one end of which is fixed on the upper cover, and the other end of which is against the relay.

3. The relay inverted installation structure according to claim 2, characterized in that: A limiting groove is provided on the relay corresponding to the push rod, and the push rod is inserted into the limiting groove.

4. The relay inverted installation structure according to claim 2, characterized in that: A fixing seat is provided on the upper cover corresponding to the ejector rod, and a slot is provided on the fixing seat, and the ejector rod is inserted into the slot.

5. The relay inverted installation structure according to claim 4, characterized in that: The inner side wall of the slot is provided with a convex ridge, which presses against the ejector rod to fix the ejector rod in the slot.

6. The relay inverted installation structure according to claim 5, characterized in that: The convex edge is provided with a guide slope surface, and the guide slope surface is used to guide the push rod when the push rod is inserted into the slot.

Images