Connector sealing structure and energy storage battery

Abstract

The utility model discloses a connector sealing structure and an energy storage battery, and the connector sealing structure comprises a first housing which is arranged on the end face of a battery pack box body; one end, deviating from the battery pack box body, of the first shell is opened; a connector is arranged in the first shell, and a first notch is formed in the periphery of the opening end of the first shell; the second shell is arranged on the first shell in a covering mode and used for wrapping the first shell to form a sealing cavity in an enclosing mode; the sealing piece comprises a first sealing part and a second sealing part; the first sealing part is located between the end face of the open end of the first shell and the second shell. The second sealing part is connected with the first sealing part, and the second sealing part is adaptively embedded in the first notch; the second sealing part is provided with at least one through hole for a cable to pass through, and the through hole is in sealing connection with the cable; and a second gap for the cable to pass through is formed in the peripheral side of the second shell corresponding to each through hole. The technical problem that an existing connector is difficult to meet the sealing requirement is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, in particular to a connector sealing structure and an energy storage battery. Background Art

[0002] In many electrical equipment, connectors are required for signal or power transmission. In communications and energy storage batteries, the required protection level must also be met. For battery packs with IP2X protection level requirements, through-wall fence connectors are used. For battery packs with IP65 protection level or above, plug-in connectors are used, that is, the connectors need to have a certain sealing ability.

[0003] However, existing connectors generally include an injection-molded body and a copper busbar mounted on the injection-molded body, with a gap between the two, making it difficult to meet sealing requirements. Utility Model Content

[0004] In view of this, the present invention provides a connector sealing structure and an energy storage battery to solve the technical problem that existing connectors are difficult to meet sealing requirements.

[0005] In the first aspect, the utility model provides a connector sealing structure, comprising: a first shell for being arranged on the end face of a battery pack case; the first shell is opened at one end away from the battery pack case; a connector is arranged in the first shell, and a first notch is provided on the periphery of the open end of the first shell; a second shell is covered on the first shell and is used to cover the first shell to enclose and form a sealed cavity; a sealing member comprises a first sealing part and a second sealing part; the first sealing part is located between the end face of the open end of the first shell and the second shell; the second sealing part is connected to the first sealing part, and the second sealing part is adapted to be embedded in the first notch; the second sealing part is provided with at least one through hole for the cable to pass through, and the through hole is sealed and connected to the cable; a second notch for the cable to pass through is provided on the peripheral side of the second shell corresponding to each through hole.

[0006] By arranging the connector in the first shell, aligning the second sealing part of the seal and embedding it in the first notch, and at the same time, the first sealing part is arranged along the end face of the open end of the first shell, and the cable is connected to the connector through the second sealing part through the through hole. After the cable is connected, the position of the second notch on the second shell is made to correspond to the position of the first notch and covered on the first shell, so that the first shell and the second shell are enclosed to form a sealed cavity. By arranging the seal between the first shell and the second shell, and the second shell covering the outer periphery of the first shell, and at the same time, the through hole on the second sealing part is sealed and connected to the cable, the connector is sealed together, thereby further improving the sealing performance, improving the dustproof and waterproof effects, and providing better protection for the connector, thereby increasing the service life.

[0007] In an optional embodiment, a sealing plug is provided in the through hole, and the through hole is sealed and connected to the cable via the sealing plug. By providing the sealing plug in the through hole and cooperating with the cable, the sealing effect is improved.

[0008] In an optional embodiment, an annular retainer is provided on at least one side of the cable sealing plug. The retainer abuts the sealing plug, and the outer diameter of the retainer matches the diameter of the through-hole. The retainer acts as a retainer on the cable, preventing relative movement between the cable and the through-hole during use, which could compromise the seal.

[0009] In an optional embodiment, the first sealing portion and the second sealing portion are integrally formed, thereby improving the sealing effect and structural strength, facilitating production and processing, and reducing costs.

[0010] In an optional embodiment, the first sealing portion is provided in an annular structure, and the shape of the first sealing portion is adapted to the shape of the open end of the first shell. The first sealing portion is provided in an annular structure adapted to the open end of the first shell, thereby reducing the amount of sealing material while ensuring sealing performance, thereby reducing production costs.

[0011] In an optional embodiment, an annular rib is provided on the end surface of the second housing corresponding to the open end of the first housing. The annular rib is used to cooperate with the open end of the first housing to squeeze the seal. The provision of the annular rib and the end surface of the open end of the first housing to squeeze the seal further improve the sealing effect.

[0012] In an optional embodiment, a baffle is detachably connected to the second notch. By providing the detachable baffle, when the cable is not passing through the through hole, the baffle is used to block the through hole for protection. When the cable needs to be installed, the baffle is removed to facilitate the cable to pass through.

[0013] In an optional embodiment, the second housing is connected to the battery pack case by screws. The second housing and the battery pack case are connected by screws, which facilitates installation and disassembly and improves installation efficiency.

[0014] In a second aspect, the present invention further provides an energy storage battery, comprising a battery pack case and a connector sealing structure as described in any one of the first aspects, wherein the connector sealing structure is arranged on an end face of the battery pack case. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 An exploded view of a connector sealing structure provided by an embodiment of the present utility model;

[0017] Figure 2 This is a structural view of the second shell provided in an embodiment of the present utility model.

[0018] Description of reference numerals:

[0019] 1. First shell; 2. Battery pack body; 3. Connector; 4. First notch; 5. Second shell; 6. Sealing member; 61. First sealing portion; 62. Second sealing portion; 7. Cable; 8. Through hole; 9. Second notch; 10. Sealing plug; 11. Annular limiter; 12. Baffle; 13. Annular rib. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] The following combination Figures 1 to 2 , describing the embodiments of the present utility model.

[0025] According to an embodiment of the present utility model, on the one hand, a connector sealing structure is provided, including: a first shell 1, which is used to be arranged on the end face of a battery pack case 2; the first shell 1 is opened at one end away from the battery pack case 2; a connector 3 is provided in the first shell 1, and a first notch 4 is provided at the periphery of the open end of the first shell 1; a second shell 5 is provided on the first shell 1, and is used to cover the first shell 1 to enclose and form a sealed cavity; a sealing member 6, including a first sealing portion 61 and a second sealing portion 62; the first sealing portion 61 is located between the end face of the open end of the first shell 1 and the second shell 5; the second sealing portion 62 is connected to the first sealing portion 61, and the second sealing portion 62 is adapted to be embedded in the first notch 4; the second sealing portion 62 is provided with at least one through hole 8 for the cable 7 to pass through, and the through hole 8 is sealed and connected to the cable 7; a second notch 9 for the cable 7 to pass through is provided on the peripheral side of the second shell 5 corresponding to each through hole 8.

[0026] It should be noted that the second notch 9 is provided at one end of the second shell 5 facing the first shell 1 ; the connector 3 is electrically connected to the cable 7 .

[0027] In this embodiment, the connector 3 is arranged in the first shell 1, the second sealing portion 62 of the seal 6 is aligned and embedded in the first notch 4, and the first sealing portion 61 is arranged along the end face of the open end of the first shell 1, and the cable 7 is connected to the connector 3 through the second sealing portion 62 through the through hole 8. After the cable 7 is connected, the position of the second notch 9 on the second shell 5 is made to correspond to the position of the first notch 4 and is covered on the first shell 1, so that the first shell 1 and the second shell 5 are enclosed to form a sealed cavity. By arranging the seal 6 between the first shell 1 and the second shell 5, and the second shell 5 is covered on the outer periphery of the first shell 1, and the through hole 8 on the second sealing portion 62 is sealed and connected to the cable 7, the connector 3 is sealed together, the sealing performance is further improved, the dustproof and waterproof effects are improved, and the connector 3 is better protected, thereby increasing the service life.

[0028] like Figure 1 As shown, in one embodiment, a sealing plug 10 is provided in the through hole 8 , and the through hole 8 is sealedly connected to the cable 7 via the sealing plug 10 .

[0029] In this embodiment, a sealing plug 10 is provided in the through hole 8 to cooperate with the cable 7 to improve the sealing effect.

[0030] like Figure 1 As shown, in one embodiment, an annular limiter 11 is sleeved on at least one side of the sealing plug 10 on the cable 7 , the annular limiter 11 abuts against the sealing plug 10 , and the outer diameter of the annular limiter 11 is adapted to the diameter of the through hole 8 .

[0031] In this embodiment, when connected, the annular limiter 11 is adapted to be embedded in the through hole 8 and abut the sealing plug 10. By arranging the annular limiter 11 on the cable 7, a limiting function is played to avoid relative movement between the cable 7 and the through hole 8 during use, resulting in poor sealing.

[0032] Specifically, annular limiting members 11 are sleeved on both sides of the sealing plug 10 on the cable 7 to improve the limiting effect and avoid relative movement between the cable 7 and the through hole 8 during use, which may lead to poor sealing.

[0033] like Figure 1 As shown, in one embodiment, the first sealing portion 61 and the second sealing portion 62 are integrally formed.

[0034] In this embodiment, the first sealing portion 61 and the second sealing portion 62 are integrated to improve the sealing effect and structural strength, while facilitating production and processing and reducing costs.

[0035] like Figure 1 As shown, in one embodiment, the first sealing portion 61 is provided in an annular structure, and the shape of the first sealing portion 61 is adapted to the shape of the opening end of the first shell 1 .

[0036] In this embodiment, by providing the first sealing portion 61 with an annular structure adapted to the open end of the first housing 1 , the sealing material is reduced while ensuring the sealing performance, thereby reducing the production cost.

[0037] like Figure 2 As shown, in one embodiment, an annular rib 13 is provided on the end surface of the second shell 5 corresponding to the open end of the first shell 1 , and the annular rib 13 is used to cooperate with the open end of the first shell 1 to squeeze the sealing member 6 .

[0038] In this embodiment, the sealing effect is further improved by providing an annular rib 13 that cooperates with the end surface of the opening end of the first shell 1 to squeeze the sealing member 6.

[0039] like Figure 1 and Figure 2 As shown, in one embodiment, a baffle 12 is detachably connected to the second notch 9 .

[0040] In this embodiment, a detachable baffle 12 is provided. When the cable 7 does not pass through the through hole 8, the baffle 12 is used to block the through hole 8 to provide protection. When the cable 7 needs to be installed, the baffle 12 is removed to facilitate the passage of the cable 7.

[0041] Specifically, the baffle 12 can be slidably inserted into the second notch 9 to facilitate installation and disassembly.

[0042] like Figure 1 As shown, in one embodiment, the second shell 5 is screwed to the battery pack case 2 .

[0043] In this embodiment, the second shell 5 and the battery pack box 2 are connected by screws, which facilitates installation and disassembly and improves installation efficiency.

[0044] Specifically, the second sealing portion 62 is a planar structure, and the second sealing portion 62 is perpendicular to the first sealing portion 61 .

[0045] like Figure 1As shown, the specific working principle of the connector sealing structure is as follows: first, the connector 3 is set in the first shell 1, and the connector 3 is electrically connected to other external components. Then, the second sealing portion 62 of the seal 6 is aligned and embedded in the first notch 4. At the same time, the first sealing portion 61 is set along the end face of the open end of the first shell 1, and the cable 7 is passed through the sealing plug 10 in the through hole 8 to connect with the connector 3. The two sides of the sealing plug 10 on the cable 7 are limited by the annular limiting members 11 against the sealing plug 10. After the cable 7 is connected, the baffle 12 at the second notch 9 on the second shell 5 is removed, and the second notch 9 on the second shell 5 is closed. The position corresponds to the position of the first notch 4 and is covered on the first shell 1, and the second shell 5 is screwed to the battery pack case 2, so that the first shell 1 and the second shell 5 are enclosed to form a sealed cavity. By arranging the sealing member 6 between the first shell 1 and the second shell 5, and the second shell 5 covering the outer periphery of the first shell 1, and the through hole 8 on the second sealing portion 62 is sealed and connected with the cable 7, the connector 3 is sealed together, the sealing performance is further improved, the dustproof and waterproof effects are improved, the connector 3 is better protected, and the service life is increased, thereby solving the technical problem that the existing connector 3 is difficult to meet the sealing requirements.

[0046] According to an embodiment of the present utility model, on the other hand, an energy storage battery is also provided, comprising a battery pack case 2 and a connector sealing structure as in any one of the embodiments of the first aspect, wherein the connector sealing structure is arranged on the end face of the battery pack case 2, and a connector 3 is provided in the connector sealing structure, so that the energy storage battery having the connector sealing structure has at least the same technical effect as the above-mentioned connector sealing structure, and the specific principles are the same as those of the above-mentioned embodiments, which will not be repeated here.

[0047] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A connector sealing structure, characterized in that: include: A first shell (1) is provided on an end surface of a battery pack case (2); the first shell (1) is provided with an opening at one end facing away from the battery pack case (2); a connector (3) is provided in the first shell (1), and a first notch (4) is provided around the periphery of the open end of the first shell (1); A second shell (5) is provided on the first shell (1) and is used to cover the first shell (1) to enclose and form a sealed cavity; A sealing member (6) comprises a first sealing portion (61) and a second sealing portion (62); the first sealing portion (61) is located between the end surface of the opening end of the first shell (1) and the second shell (5); the second sealing portion (62) is connected to the first sealing portion (61), and the second sealing portion (62) is adapted to be embedded in the first notch (4); the second sealing portion (62) is provided with at least one through hole (8) for the cable (7) to pass through, and the through hole (8) is sealedly connected to the cable (7); a second notch (9) for the cable (7) to pass through is provided on the circumferential side of the second shell (5) corresponding to each through hole (8).

2. The connector sealing structure according to claim 1, wherein: A sealing plug (10) is provided in the through hole (8), and the through hole (8) is sealedly connected to the cable (7) via the sealing plug (10).

3. The connector sealing structure according to claim 2, characterized in that: An annular limiting member (11) is sleeved on at least one side of the sealing plug (10) on the cable (7), the annular limiting member (11) abuts against the sealing plug (10), and the outer diameter of the annular limiting member (11) is adapted to the diameter of the through hole (8).

4. The connector sealing structure according to claim 1, wherein: The first sealing portion (61) and the second sealing portion (62) are integrally formed.

5. The connector sealing structure according to claim 1, wherein: The first sealing portion (61) is provided in an annular structure, and the shape of the first sealing portion (61) is adapted to the shape of the opening end of the first shell (1).

6. The connector sealing structure according to any one of claims 1 to 5, characterized in that: An annular convex rib (13) is provided on the end surface of the second shell (5) corresponding to the open end of the first shell (1), and the annular convex rib (13) is used to cooperate with the open end of the first shell (1) to squeeze the sealing member (6).

7. The connector sealing structure according to claim 1, wherein: A baffle (12) is detachably connected to the second notch (9).

8. The connector sealing structure according to claim 1, wherein: The second shell (5) is screw-connected to the battery pack case (2).

9. An energy storage battery, characterized in that: It comprises a battery pack case (2) and a connector sealing structure according to any one of claims 1 to 8, wherein the connector sealing structure is arranged on the end face of the battery pack case (2).

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