Battery suspension point sealing structure and vehicle

Abstract

The invention discloses a battery lifting point sealing structure and a vehicle. The battery lifting point sealing structure comprises a battery base, a battery upper cover, a lifting point sealing assembly, a pressing connecting piece and an anti-rotation piece, a sleeve is arranged on the battery base, the lifting point sealing assembly comprises a connecting support, lifting middle holes are formed in the sleeve and the connecting support, the lower portion of the connecting support is connected with the upper portion of the sleeve, and the upper portion of the connecting support penetrates through the battery upper cover and is connected with the pressing connecting piece; the anti-rotation piece is used for limiting relative rotation of the pressing connecting piece and the connecting support. Torsion attenuation of the connecting support can be prevented, and the sealing effect is good.

Description

Technical Field

[0001] The present invention relates to a new energy vehicle, and in particular to a battery hanging point sealing structure and a vehicle. Background Art

[0002] The power battery is an energy storage device for electric vehicles, providing electric energy for electric vehicles and is one of the core components of electric vehicles. The power battery assembly includes a power battery base, a power battery cover, a module, a thermal management system, a wiring harness system, a high-voltage system and other components. Among them, the existing power battery base and the middle suspension point of the power battery cover are connected by an aluminum alloy bracket. The aluminum alloy bracket is not directly fixed on the power battery base, but is bolted to other brackets that have been assembled on the base. The aluminum alloy bracket bolts have severe torque attenuation after use, and the upper end of the aluminum alloy bracket and the upper cover are sealed with a sealing ring structure, and the sealing effect is poor. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a battery hanging point sealing structure and a vehicle, which can prevent the torsional force of the connecting bracket from attenuating and have a good sealing effect.

[0004] A battery hanging point sealing structure in the present invention comprises a battery base, a battery upper cover, a hanging point sealing assembly, a clamping connector and an anti-rotation member; a sleeve is provided on the battery base, the hanging point sealing assembly comprises a connecting bracket, the sleeve and the connecting bracket are both provided with a hanging center hole, the lower part of the connecting bracket is connected to the upper part of the sleeve, the upper part of the connecting bracket passes through the battery upper cover and is connected to the clamping connector; the anti-rotation member is used to limit the relative rotation of the clamping connector and the connecting bracket.

[0005] Furthermore, an upper anti-rotation groove is provided on the inner wall of the connecting bracket, a lower anti-rotation groove is provided on the inner wall of the sleeve, and the anti-rotation member is inserted into the upper anti-rotation groove and the lower anti-rotation groove.

[0006] Furthermore, the lengths of the upper anti-rotation groove and the lower anti-rotation groove are both along the up-down direction, and the anti-rotation component is a pin body with a length along the up-down direction.

[0007] Furthermore, the hanging point sealing assembly also includes a sealing element, and the sealing element is arranged between the connecting bracket and the battery upper cover.

[0008] Furthermore, the connecting bracket includes an upper threaded section and a middle boss section; the upper threaded section is provided with an external thread, and the upper threaded section is threadedly connected to the clamping connector; the middle boss section protrudes radially outward, the upper surface of the middle boss section abuts against the lower surface of the sealing element, and the upper surface of the sealing element abuts against the battery cover.

[0009] Furthermore, the connecting bracket also includes a lower connecting section, the upper portion of the sleeve is provided with an external thread, the lower connecting section is sleeved on the upper portion of the sleeve and the two are threadedly connected.

[0010] Furthermore, the internal lifting center hole of the connecting bracket includes a through hole portion, a groove portion, a screw hole portion and a through hole portion, which are arranged in sequence from bottom to top. The upper part of the sleeve passes through the through hole portion and the groove portion and is threadedly connected to the screw hole portion, and the through hole portion is connected to the internal lifting center hole of the sleeve.

[0011] Furthermore, the sealing element is an annular foam; and the groove portion is provided with a sealing ring.

[0012] Furthermore, the battery cover is arranged on the battery base, and a cavity for accommodating the battery module is provided between the two.

[0013] A vehicle in the present invention comprises the above-mentioned battery hanging point sealing structure.

[0014] The beneficial effects of the present invention are: (1) The connecting bracket and the sleeve of the present invention form a split structure, which prevents the large volume of the connecting bracket from affecting the assembly of the reinforced center beam.

[0015] (2) After the connecting bracket of the present invention is connected to the sleeve, the anti-rotation component prevents the two from rotating relative to each other, thereby preventing the torque of the connecting bracket from attenuating, which is beneficial for the subsequent connection with the clamping connector.

[0016] (3) The present invention provides a "surface seal" for the hanging point by setting the sealing element between the battery cover and the connecting bracket. The sealing area is larger than that of the traditional "line seal", so the sealing effect is better.

[0017] (4) The present invention forms two sealing structures through the sealing element and the sealing ring, and the two sealing structures jointly ensure the sealing performance of the battery base around the hanging point. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 It is a structural schematic diagram of the battery hanging point sealing structure of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the battery base, the hanging point sealing assembly and the anti-rotation part of the present invention; Figure 3 It is a structural schematic diagram of the battery base of the present invention; Figure 4 It is a structural schematic diagram of the battery upper cover of the present invention; Figure 5 It is a schematic structural diagram of the compression connector of the present invention.

[0019] The markings in the accompanying drawings are as follows: 1-battery base, 101-sleeve, 1011-lower anti-rotation groove, 2-battery upper cover, 3-hanging point sealing assembly, 301-connecting bracket, 3011-upper anti-rotation groove, 3012-upper threaded section, 3013-middle boss section, 3014-lower connecting section, 3015-through hole portion, 3016-groove portion, 3017-screw hole portion, 3018-through hole portion, 302-sealing element, 4-compression connector, 5-anti-rotation member, 6-sealing ring. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 5 As shown, a battery hanging point sealing structure in the present embodiment includes a battery base 1, a battery cover 2, a hanging point sealing assembly 3, a clamping connector 4 and an anti-rotation member 5; a sleeve 101 is provided on the battery base 1, and the hanging point sealing assembly 3 includes a connecting bracket 301, and the sleeve 101 and the connecting bracket 301 are both provided with a hanging center hole, the lower part of the connecting bracket 301 is connected to the upper part of the sleeve 101, and the upper part of the connecting bracket 301 passes through the battery cover 2 and is connected to the clamping connector 4; the anti-rotation member 5 is used to limit the relative rotation of the clamping connector 4 and the connecting bracket 301.

[0022] Two or more sleeves 101 and corresponding hanging point sealing components 3 can be provided, and each sleeve 101 is arranged at intervals in the middle of the battery base 1. The sleeve 101 can be arranged on the battery base 1 by riveting, welding or integral casting. The connecting bracket 301 and the sleeve 101 form a split structure. When the reinforcing middle beam is transferred, the reinforcing middle beam is first installed on the battery base 1. The sleeve 101 can pass through the reinforcing middle beam without interference, and then the connecting bracket 301 is installed to avoid the large volume of the connecting bracket 301 affecting the assembly of the reinforcing middle beam. After the connecting bracket 301 is connected to the sleeve 101, the anti-rotation member 5 prevents the two from rotating relative to each other, thereby preventing the torsional attenuation of the connecting bracket 301, which is conducive to the subsequent connection with the clamping connector 4.

[0023] In this embodiment, the inner wall of the connecting bracket 301 is provided with an upper anti-rotation groove 3011, the inner wall of the sleeve 101 is provided with a lower anti-rotation groove 1011, and the anti-rotation member 5 is inserted into the upper anti-rotation groove 3011 and the lower anti-rotation groove 1011. In this embodiment, the lengths of the upper anti-rotation groove 3011 and the lower anti-rotation groove 1011 are both along the up-down direction, and the anti-rotation member 5 is a pin body with a length along the up-down direction. The upper anti-rotation groove 3011 corresponds to the position of the lower anti-rotation groove 1011, and is connected to each other, so as to facilitate the insertion of the anti-rotation member 5.

[0024] In this embodiment, the connecting bracket 301 includes an upper threaded section 3012 and a middle boss section 3013; the upper threaded section 3012 is provided with an external thread, and the upper threaded section 3012 is threadedly connected to the clamping connector 4; the middle boss section 3013 protrudes radially outward, and the upper surface of the middle boss section 3013 abuts against the lower surface of the sealing element 302, and the upper surface of the sealing element 302 abuts against the battery upper cover 2. The middle boss section 3013 provides a larger support area for the sealing element 302, and the clamping connector 4 is a nut, and the upper threaded section 3012 is threadedly connected to the nut.

[0025] In this embodiment, the hanging point sealing assembly 3 further includes a sealing element 302, and the sealing element 302 is arranged between the connecting bracket 301 and the battery upper cover 2. The sealing element 302 is arranged between the battery upper cover 2 and the connecting bracket 301, so that a "surface seal" can be provided for the hanging point position, and the sealing area is larger than that of the traditional "line seal", so the sealing effect is better.

[0026] In this embodiment, the sealing element 302 is an annular foam. The upper thread section 3012 passes through the hole of the battery upper cover 2, and the annular foam can seal the periphery of the hole, and the annular sealing surface has a good sealing effect. The connecting bracket 301 and the annular foam of the hanging point sealing assembly 3 are integrated together, which can simplify the assembly of the sealing element 302.

[0027] In this embodiment, the connecting bracket 301 further includes a lower connecting section 3014. The upper portion of the sleeve 101 is provided with an external thread. The lower connecting section 3014 is sleeved on the upper portion of the sleeve 101 and the two are threadedly connected.

[0028] In this embodiment, the internal hoisting hole of the connecting bracket 301 includes a through hole portion 3015, a groove portion 3016, a screw hole portion 3017 and a through hole portion 3018, which are arranged from bottom to top. The upper part of the sleeve 101 passes through the through hole portion 3015 and the groove portion 3016 and is threadedly connected with the screw hole portion 3017. The through hole portion 3018 is connected to the internal hoisting hole of the sleeve 101. The internal hoisting hole of the connecting bracket 301 and the internal hoisting hole of the sleeve 101 together form a through hole, which can be used for hoisting. The groove portion 3016 is provided with a sealing ring 6, which can ensure the performance between the sleeve 101 and the connecting bracket 301, and can cooperate with the sealing element 302 to form two sealing structures, and jointly ensure the sealing performance of the battery base 1 around the hanging point.

[0029] In this embodiment, the battery cover 2 is disposed on the battery base 1, and a cavity for accommodating a battery module is defined between the battery cover and the battery base.

[0030] The detailed assembly process of a battery hanging point sealing structure in this embodiment is as follows: S1, the sealing ring 6 is installed in the groove part 3016, and then the hanging point sealing assembly 3 is threadedly connected with the sleeve 101, and the hanging point sealing assembly 3 is rotated until the torque requirement range is met. In this step, the torque requirement range is selected to be near the middle value, for example, if the torque requirement range is 30N-50N, the hanging point sealing assembly 3 is rotated until the torque reaches about 40N. At this time, the sealing ring 6 forms a seal between the connecting bracket 301 and the sleeve 101.

[0031] S2, rotate the suspension point seal assembly 3 so that the upper anti-rotation groove 3011 corresponds to the position of the lower anti-rotation groove 1011, and then insert the anti-rotation member 5 into the upper anti-rotation groove 3011 and the lower anti-rotation groove 1011, so that the suspension point seal assembly 3 does not have a torque attenuation problem. Since a margin is left in step S1, the suspension point seal assembly 3 can still meet the torque requirement range regardless of whether it is rotated forward or reverse.

[0032] S3, install the battery cover 2, and then rotate and compress the seal so that the battery cover 2, the sealing element 302 and the connecting bracket 301 abut against each other and form a seal.

[0033] A vehicle in this embodiment includes the above-mentioned battery hanging point sealing structure.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A battery hanging point sealing structure, characterized in that: The invention comprises a battery base (1), a battery upper cover (2), a hanging point sealing assembly (3), a clamping connector (4) and an anti-rotation member (5); the battery base (1) is provided with a sleeve (101); the hanging point sealing assembly (3) comprises a connecting bracket (301); the sleeve (101) and the connecting bracket (301) are both provided with a hanging center hole; the lower part of the connecting bracket (301) is connected to the upper part of the sleeve (101); the upper part of the connecting bracket (301) passes through the battery upper cover (2) and is connected to the clamping connector (4); the anti-rotation member (5) is used to limit the relative rotation of the clamping connector (4) and the connecting bracket (301).

2. The battery hanging point sealing structure according to claim 1, characterized in that: The inner wall of the connecting bracket (301) is provided with an upper anti-rotation groove (3011), the inner wall of the sleeve (101) is provided with a lower anti-rotation groove (1011), and the anti-rotation member (5) is inserted into the upper anti-rotation groove (3011) and the lower anti-rotation groove (1011).

3. The battery hanging point sealing structure according to claim 2, characterized in that: The lengths of the upper anti-rotation groove (3011) and the lower anti-rotation groove (1011) are both in the up-down direction, and the anti-rotation component (5) is a pin body with a length in the up-down direction.

4. The battery hanging point sealing structure according to claim 1, characterized in that: The suspension point sealing assembly (3) further comprises a sealing element (302), wherein the sealing element (302) is arranged between the connecting bracket (301) and the battery upper cover (2).

5. The battery hanging point sealing structure according to claim 4, characterized in that: The connecting bracket (301) comprises an upper threaded section (3012) and a middle boss section (3013); the upper threaded section (3012) is provided with an external thread, and the upper threaded section (3012) is threadedly connected to the clamping connector (4); the middle boss section (3013) protrudes radially outward, the upper surface of the middle boss section (3013) abuts against the lower surface of the sealing element (302), and the upper surface of the sealing element (302) abuts against the battery upper cover (2).

6. The battery hanging point sealing structure according to claim 5, characterized in that: The connecting bracket (301) further comprises a lower connecting section (3014), the upper portion of the sleeve (101) is provided with an external thread, the lower connecting section (3014) is sleeved on the upper portion of the sleeve (101) and the two are threadedly connected.

7. The battery hanging point sealing structure according to claim 6, characterized in that: The internal hoisting center hole of the connecting bracket (301) includes a through hole portion (3015), a groove portion (3016), a screw hole portion (3017) and a through hole portion (3018) arranged in sequence from bottom to top; the upper portion of the sleeve (101) passes through the through hole portion (3015) and the groove portion (3016) and is threadedly connected to the screw hole portion (3017); the through hole portion (3018) is connected to the internal hoisting center hole of the sleeve (101).

8. The battery hanging point sealing structure according to claim 7, characterized in that: The sealing element (302) is an annular foam; the groove portion (3016) is provided with a sealing ring (6).

9. The battery hanging point sealing structure according to claim 1, characterized in that: The battery upper cover (2) is arranged on the battery base (1), and a cavity for accommodating a battery module is provided between the two.

10. A vehicle, characterized in that: It comprises the battery hanging point sealing structure as described in any one of claims 1 to 9.

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