Wire harness connecting assembly, battery pack and electric equipment

Abstract

The utility model provides a wire harness connecting assembly, battery pack and electric equipment, the wire harness connecting assembly comprises a connecting shell, a wire harness and a sealing cover, the connecting shell comprises a fixed pipe and a sealing cavity which are connected with each other, one end of the wire harness is connected with a wiring terminal, the wire harness is sleeved in the fixed pipe, the outer side of the wire harness is tightly attached to the inner wall of the fixed pipe, and the sealing cover is arranged in the sealing cavity. The wiring terminals are correspondingly arranged in the sealing cavities; the sealing cover is matched with the sealing cavity and is suitable for sealing the wiring terminal in the sealing cavity; according to the utility model, the wiring terminal is arranged in the sealing cavity and is sealed in the sealing cavity through the sealing cover, so that the waterproof sealing performance of the wiring terminal is improved, and meanwhile, the fixing pipe is tightly sleeved outside the wiring harness, so that the tight connection between the fixing pipe and the wiring harness is realized, the tight connection between the fixing pipe and the wiring harness is ensured, and the sealing performance of the wiring harness is improved; and the stable clamping effect of the fixing pipe on the wire harness is achieved, the wire harness is prevented from shaking or falling off, and the stability and safety of wire harness connection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring terminals, and in particular to a wiring harness connection component, a battery pack and an electrical device. Background Art

[0002] The wiring harness is usually made up of several or several groups of wires (at least two wires in each group) twisted together. The wires are insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering layer. When the wiring harness is connected to the battery and electrical equipment for input and output, it is mostly connected through terminal blocks. With the advancement of the electrification of engineering vehicles, more and more engineering vehicles are driven by batteries, which puts higher requirements on the reliability of the wiring harness connecting the battery system and the whole vehicle, requiring the wiring harness connection to have good waterproof sealing and reliability.

[0003] In the prior art, the connection is directly made by connecting terminals, which does not provide waterproof sealing after the connection, and is easily contaminated by water, dust, etc., resulting in connection failure. Utility Model Content

[0004] The utility model provides a wire harness connection component, a battery pack and an electric device, which are used to solve the defect of poor waterproof sealing performance at the connection of wire harness terminals in the prior art.

[0005] In a first aspect, the utility model provides a wiring harness connection assembly, comprising:

[0006] A connecting shell, including a connected fixing pipe and a sealing cavity;

[0007] A wiring harness, one end of which is connected to a wiring terminal, the wiring harness is passed through the fixing tube, the outer side of the wiring harness is closely fitted to the inner wall of the fixing tube, and the wiring terminal is correspondingly arranged in the sealing cavity;

[0008] A sealing cover is matched with the sealing cavity and is suitable for sealing the connection terminal in the sealing cavity.

[0009] According to the wiring harness connection assembly provided by the utility model, it also includes a bolt, the wiring terminal is provided with a through hole for installing the bolt, and the sealing cavity is provided with a channel for the bolt to pass through, and the channel corresponds to the through hole.

[0010] According to the wiring harness connection assembly provided by the utility model, the wiring terminal includes a wiring portion and a connecting portion, the wiring portion is connected to one end of the wiring harness, the connecting portion is arranged in the sealed cavity, and the through hole is arranged on the connecting portion.

[0011] According to the wiring harness connection assembly provided by the utility model, a connection structure is provided between the sealing cover and the sealing cavity, and the sealing cover and the sealing cavity are detachably connected via the connection structure.

[0012] According to the wiring harness connection assembly provided by the utility model, the connection structure includes:

[0013] A buckle, arranged on the bottom end surface of the sealing cover;

[0014] The bayonet is arranged on the side wall of the sealing cavity, and the buckle is matched with the bayonet.

[0015] According to the wiring harness connection assembly provided by the utility model, the bottom end surface of the sealing cover is further provided with an inserting portion, and the inserting portion is plug-fitted with the channel.

[0016] According to the wire harness connection assembly provided by the utility model, a sealing rubber ring is also arranged on the outer side of the plug-in portion.

[0017] According to the wiring harness connection assembly provided by the utility model, a sealing rubber layer is arranged between the end of the fixing tube away from the wiring terminal and the wiring harness.

[0018] In a second aspect, the utility model further provides a battery pack, comprising a mounting terminal and a wiring harness connection assembly as described in the first aspect, wherein the mounting terminal is electrically connected to a connection terminal of the wiring harness connection assembly.

[0019] In a third aspect, the utility model further provides an electrical device, comprising a wiring harness connection assembly as described in the first aspect.

[0020] The utility model provides a wiring harness connection component, comprising: a connection shell, a wiring harness and a sealing cover, the connection shell comprising a fixed tube and a sealing cavity connected to each other, one end of the wiring harness is connected to a wiring terminal, the wiring harness is sleeved in the fixed tube, the outer side of the wiring harness is tightly fitted with the inner wall of the fixed tube, and the wiring terminal is correspondingly arranged in the sealing cavity; the sealing cover is adapted to the sealing cavity and is suitable for sealing the wiring terminal in the sealing cavity; in this arrangement, by arranging the wiring terminal in the sealing cavity and sealing the wiring terminal in the sealing cavity through the sealing cover, the waterproof sealing of the wiring terminal is improved, and at the same time, the fixed tube is tightly sleeved on the outside of the wiring harness to achieve a tight connection between the fixed tube and the wiring harness, ensuring that the two are tightly connected, which is beneficial to improving the sealing performance of the wiring harness, and realizing the stable clamping effect of the fixed tube on the wiring harness, preventing the wiring harness from shaking or falling, and improving the stability and safety of the wiring harness connection.

[0021] The utility model also provides a battery pack and an electrical device, both of which include the above-mentioned wiring harness connection assembly. Therefore, when having the above-mentioned wiring harness connection assembly, they have all the advantages of the above-mentioned wiring harness connection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a cross-sectional view of a wiring harness connection assembly provided by an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a connection shell provided by an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the connection between the wiring harness and the wiring terminal provided by the embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the sealing cover provided by an embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of a wiring harness connection assembly provided by an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1. Connecting shell; 11. Fixing pipe; 12. Sealing chamber; 13. Passage; 14. Bayonet;

[0030] 2. Wire harness; 3. Terminal block; 31. Wiring part; 32. Connecting part;

[0031] 4. Sealing cover; 41. Buckle; 42. Connecting part; 43. Sealing rubber ring;

[0032] 5. Bolts. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Combine the following Figures 1 to 5 A wiring harness connection assembly, a battery pack, and an electrical device provided in an embodiment of the utility model are described.

[0035] The present embodiment provides a wiring harness connection assembly, which includes a connection shell 1 , a wiring harness 2 and a sealing cover 4 .

[0036] Among them, the connecting shell 1 includes a fixed tube 11 and a sealed cavity 12 connected to each other, one end of the wiring harness 2 is connected to a wiring terminal 3, the wiring harness 2 is passed through the fixed tube 11, the outer side of the wiring harness 2 is tightly fitted with the inner wall of the fixed tube 11, and the wiring terminal 3 is correspondingly arranged in the sealed cavity 12; the sealing cover 4 is adapted to the sealed cavity 12, and is suitable for enclosing the wiring terminal 3 in the sealed cavity 12.

[0037] It can be known from the above scheme that when the connecting shell 1 provided by the utility model is in use, the wiring harness 2 is passed through the fixing tube 11, and the inner wall of the fixing tube 11 is arranged to fit tightly with the wiring harness 2, so that the fixing tube 11 is tightly sleeved on the outside of the wiring harness 2, so as to achieve a tight connection between the fixing tube 11 and the wiring harness 2, and ensure that the two are tightly connected, which is beneficial to improving the sealing performance of the wiring harness 2, and realizes the stable clamping effect of the fixing tube 11 on the wiring harness 2, preventing the wiring harness 2 from shaking or falling, and improving the stability and safety of the connection of the wiring harness 2; by arranging the wiring terminal 3 in the sealing cavity 12, and sealing the wiring terminal 3 in the sealing cavity 12 by the sealing cover 4, the waterproof sealing of the wiring terminal 3 is improved.

[0038] In some embodiments, the fixing tube 11 and the sealing cavity 12 are integrally formed and manufactured by an injection molding process.

[0039] Preferably, in order to achieve a tight connection between the wiring harness 2 and the connecting shell 1, an injection molding process can be used. First, one end of the wiring harness 2 is connected to the terminal 3, and then the connected wiring harness 2 and the terminal 3 are placed in a mold and injection-molded together with the connecting shell 1. Subsequently, the sealing cover 4 is buckled onto the sealing cavity 12 to ensure the waterproof sealing of the wiring harness 2 and the terminal 3.

[0040] In this embodiment, a bolt 5 is also included. A through hole for installing the bolt 5 is provided on the wiring terminal 3, and a channel 13 for the bolt 5 to pass through is provided in the sealed cavity 12. The channel 13 can be provided in the middle of the sealed cavity 12, and the channel 13 corresponds to the through hole. In this way, by adopting the scheme of the wiring terminal 3 plus the bolt 5, the reliability of the connection between the wiring harness 2 and the external connecting parts such as electrical equipment is improved. When connected, since the wiring terminal 3 is injection molded in the sealed cavity 12 of the connecting shell 1, the bolt 5 is inserted from the outside into the through hole on the wiring terminal 3 through the channel 13 in the sealed cavity 12, and then the bolt 5 is used to connect with the electrical equipment, and whether the connection fails can be checked by observing the fixing condition of the bolt 5, thereby improving the detectability of the connection effect of the wiring harness 2. The problem of the connection method using an aviation plug in the prior art is solved, in which it is not easy to observe the connection condition externally after connection, and the problem of poor contact and poor fixation caused by the failure of the plug elastic part after repeated use is easily solved.

[0041] In some embodiments, the axis of the fixed tube 11 is arranged along a first direction, the axis of the channel 13 is arranged along a second direction, and the first direction and the second direction have an angle, such as Figure 1 As shown, the first direction can be a horizontal direction, and the second direction is a vertical direction, so that the fixing tube 11 and the channel 13 are perpendicular to each other, the wiring harness 2 is fixed in the fixing tube 11, and the surrounding of the channel 13 is set to be hollow, which is used to fix the channel, improve the overall strength, and increase air flow, which can improve the heat dissipation performance.

[0042] In this embodiment, the wiring terminal 3 is an OT terminal, including a wiring portion 31 and a connecting portion 32. The wiring portion 31 is connected to one end of the wiring harness 2. The wiring portion 31 can be an annular structure, such as a ring with a notch. The wiring portion 31 is sleeved on the end of the wiring harness 2 and the wiring portion 31 is connected to the wiring harness 2 more firmly by extrusion; the connecting portion 32 is arranged in the sealed cavity 12, and the through hole is arranged on the connecting portion 32, wherein the connecting portion 32 can be a plate-like structure, such as a circular plate, and the through hole is arranged in the center of the circular plate.

[0043] like Figure 1 and Figure 3 As shown, the wiring portion 31 is sleeved on the end of the wiring harness 2, and the wiring harness 2 and the wiring portion 31 are tightly connected by extrusion. Then, the molded fixing tube 11 is tightly wrapped around part of the wiring harness 2 and the connecting portion 32 through an injection molding process, and the plate-shaped connecting portion 32 is also embedded in the molded sealing cavity 12. A slot adapted to the connecting portion 32 is provided in the sealing cavity 12, so that the connecting portion 32 is embedded therein. The channel 13 in the sealing cavity 12 corresponds to the through hole, so that the bolt 5 can be installed into the through hole from the channel 13, and the diameter of the channel 13 is larger than the end cap diameter of the bolt 5, and the end cap diameter of the bolt 5 is larger than the diameter of the through hole, so that the bolt 5 can be fixed on the wiring portion 31.

[0044] In this embodiment, a connection structure is provided between the sealing cover 4 and the sealing cavity 12 , and the sealing cover 4 and the sealing cavity 12 are detachably connected via the connection structure.

[0045] In this configuration, by detachably connecting the sealing cover 4 to the sealing cavity 12 , it is convenient to install the bolt 5 into the through hole of the connecting portion 32 through the channel 13 , and the waterproof sealing performance of the connecting terminal 3 is improved.

[0046] In some embodiments, the connection structure includes: a buckle 41 and a bayonet 14, the buckle 41 is arranged on the bottom end surface of the sealing cover 4, and the bayonet 14 is arranged on the side wall of the sealing cavity 12, and the buckle 41 is adapted to the bayonet 14, and the buckle 41 can be matched with the bayonet 14 inside the sealing cavity 12, or the buckle 41 can be matched with the bayonet 14 outside the sealing cavity 12.

[0047] With such arrangement, the sealing cover 4 is connected to the sealing cavity 12 by means of snap-fitting, which is simple and quick to operate, improves installation efficiency, and has a stable connection and can be reused.

[0048] In some embodiments, the connection structure may further include an external thread arranged on the side wall of the sealing cover 4, and an internal thread arranged in the sealing cavity 12; or include an internal thread arranged on the side wall of the sealing cover 4, and an external thread arranged in the sealing cavity 12; in this way, the sealing cover 4 is connected to the sealing cavity 12 by a threaded connection, which can withstand axial tension and pressure, has a simple and reliable connection, and is easy to disassemble and assemble.

[0049] In other embodiments, the connection structure may also include connecting bolts and connecting holes, wherein a plurality of corresponding connecting holes are respectively arranged between the sealing cover 4 and the sealing cavity 12, and then the sealing cover 4 is connected to the sealing cavity 12 by passing the connecting bolts through the connecting holes, so that the sealing cover 4 can be installed on the sealing cavity 12 by removing the connecting bolts.

[0050] Of course, this is only an example and is not intended to limit the scope of protection. The connection structure includes but is not limited to the above-mentioned structural forms.

[0051] Furthermore, the bottom end surface of the sealing cover 4 of this embodiment is also provided with an inserting portion 42, and the inserting portion 42 is inserted and matched with the channel 13. Figure 4 As shown, the plug-in portion 42 is arranged at the bottom center of the sealing cover 4, and can be a plug-in column or a plug-in tube, which can be adapted to the channel 13 of the sealing cavity 12. When the sealing cover 4 is connected to the sealing cavity 12, the reliability of the connection between the sealing cover 4 and the sealing cavity 12 is improved by inserting the plug-in portion 42 into the channel 13; and, by providing the plug-in portion 42, on the one hand, the installation of the sealing cover 4 and the sealing cavity 12 is faster, the connection between the two is more firm, and there will be no looseness, thereby improving the wiring safety; on the other hand, a guiding effect is achieved, and the correct position alignment and sealing between the sealing cover 4 and the sealing cavity 12 are ensured through the cooperation of the plug-in portion 42 and the channel 13, thereby improving the connection strength and stability between the sealing cover 4 and the sealing cavity 12, and improving the sealing performance of the sealing cover 4 and the sealing cavity 12, thereby reducing the gap between the two.

[0052] Optionally, the bottom end of the plug-in portion 42 can be set to a conical structure, which can provide a better fit and make the plug-in portion 42 easier to insert into the channel 13. In addition, the conical structure has a guiding function, so that the plug-in portion 42 is not easy to deviate from the direction during the insertion process, thereby improving the accuracy of the operation.

[0053] In some embodiments, a sealing rubber ring 43 is further provided on the outer side of the plug-in portion 42. Figure 4As shown, a rubber ring may be wound around the outside of the plug-in part 42, or multiple circles of protrusions may be formed on the outside of the plug-in part 42 through an injection molding process, so that the plug-in part 42 and the channel 13 fit closely. This arrangement improves the sealing performance and prevents water and dust from entering the channel 13. The rubber ring can provide a certain anti-loosening performance to prevent loosening due to vibration or external force during use, thereby ensuring the stability and reliability of the wiring harness 2 during use. It can also increase the friction and connection strength between the plug-in part 42 and the channel 13, thereby improving the safety of the wiring harness 2 during use.

[0054] Reference Figure 5 In this embodiment, a sealing layer is provided between the end of the fixing tube 11 away from the wiring terminal 3 and the wiring harness 2. For example, at the connection A between the fixing tube 11 and the wiring harness 2, a glue spot treatment is performed around the wiring harness 2 at the connection A, and a reliable sealing effect is provided by the glue spot sealing, thereby preventing water seepage or impurities such as dust from entering the fixing tube 11 at the connection A between the fixing tube 11 and the wiring harness 2, thereby improving the service life of the wiring harness 2 and the connection shell 1, maintaining the electrical performance of the wiring harness 2, and avoiding electrical failures or performance degradation caused by the presence of impurities.

[0055] An embodiment of the utility model also provides a battery pack, including an installation terminal and the above-mentioned wiring harness connection assembly, the installation terminal is electrically connected to the connection terminal 3 of the wiring harness connection assembly, and the derivation process of the beneficial effect is generally similar to the derivation process of the beneficial effect brought about by the above-mentioned wiring harness connection assembly, which will not be repeated here.

[0056] An embodiment of the utility model further provides an electrical device, including the above-mentioned wiring harness connection assembly. The derivation process of the beneficial effect is generally similar to the derivation process of the beneficial effect brought by the above-mentioned wiring harness connection assembly, and will not be repeated here.

[0057] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A wiring harness connection assembly, characterized in that: include: A connecting shell (1) comprising a fixed pipe (11) and a sealed cavity (12) connected to each other; A wire harness (2), one end of which is connected to a wiring terminal (3), the wire harness (2) is inserted into the fixing tube (11), the outer side of the wire harness (2) is tightly fitted to the inner wall of the fixing tube (11), and the wiring terminal (3) is correspondingly arranged in the sealing cavity (12); A sealing cover (4), the sealing cover (4) being matched with the sealing cavity (12) and suitable for sealing the connection terminal (3) in the sealing cavity (12).

2. The wiring harness connection assembly according to claim 1, characterized in that: It also comprises a bolt (5), the wiring terminal (3) is provided with a through hole for installing the bolt (5), the sealing cavity (12) is provided with a channel (13) for the bolt (5) to pass through, and the channel (13) corresponds to the through hole.

3. The wiring harness connection assembly according to claim 2, characterized in that: The wiring terminal (3) comprises a wiring portion (31) and a connecting portion (32), the wiring portion (31) being connected to one end of the wiring harness (2), the connecting portion (32) being arranged in the sealed cavity (12), and the through hole being arranged on the connecting portion (32).

4. The wiring harness connection assembly according to claim 2, characterized in that: A connection structure is provided between the sealing cover (4) and the sealing cavity (12), and the sealing cover (4) and the sealing cavity (12) are detachably connected via the connection structure.

5. The wiring harness connection assembly according to claim 4, characterized in that: The connection structure comprises: A buckle (41) is arranged on the bottom end surface of the sealing cover (4); The bayonet (14) is arranged on the side wall of the sealing cavity (12), and the buckle (41) is adapted to the bayonet (14).

6. The wiring harness connection assembly according to claim 5, characterized in that: The bottom end surface of the sealing cover (4) is also provided with an inserting portion (42), and the inserting portion (42) is inserted and matched with the channel (13).

7. The wiring harness connection assembly according to claim 6, characterized in that: A sealing rubber ring (43) is also provided on the outer side of the plug-in portion (42).

8. The wiring harness connection assembly according to claim 1, characterized in that: A sealing rubber layer is provided between the end of the fixing tube (11) away from the wiring terminal (3) and the wiring harness (2).

9. A battery pack, characterized in that: It comprises a mounting terminal and a wiring harness connection assembly as claimed in any one of claims 1 to 8, wherein the mounting terminal is electrically connected to a connection terminal (3) of the wiring harness connection assembly.

10. An electrical device, characterized in that: The invention comprises a wiring harness connection assembly as described in any one of claims 1 to 8.

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