Wiring harness sealing waterproof external panel for immersed cooling energy storage battery pack

Abstract

The utility model belongs to a wire harness sealing waterproof external connection panel for an immersed cooling energy storage battery pack, the wire harness external connection panel comprises an outer side panel, a covering pressing plate and a rubber piece, a threading cavity is arranged in the center of the back of the outer side panel in a protruding manner, a panel through hole is arranged in the bottom surface of the threading cavity in a penetrating manner, the rubber piece is arranged in the threading cavity in a filling manner, and the panel through hole is communicated with the panel through hole. The upper surface of the threading cavity is provided with a covering pressing plate in a covering pressing mode, the surface of the covering pressing plate is provided with a pressing plate penetrating hole in a penetrating mode, the surface of the rubber part is provided with a sealing penetrating hole in a penetrating mode, the panel penetrating hole, the pressing plate penetrating hole and the sealing penetrating hole are all aligned with one another, and the inner side of the outer side of the threading cavity is provided with a panel penetrating hole, a pressing plate penetrating hole and a sealing penetrating hole in a plug-in mode. By means of the direct clamping type panel and the embedded rubber part, the cost is reduced by more than 50% compared with a conventional connector on the market, the connector is used for an immersed energy storage battery system with a wire outlet in the top, and the structural mode is beneficial for releasing pressure after the internal pressure of a battery pack is too large.

Description

Technical Field

[0001] This article belongs to the technical field of wire harness sealed external connection panels, and specifically relates to a wire harness sealed and waterproof external connection panel for an immersion-cooled energy storage battery pack. Background Technique

[0002] With the deepening of the global dependence on renewable energy and the acceleration of the energy transformation pace, the demand for energy storage technologies has increased sharply. Immersion liquid-cooled energy storage, as a key technology to improve the performance and safety of energy storage systems,

[0003] The immersion liquid-cooled energy storage technology is in a stage of rapid development. Its characteristics of high efficiency, safety, and reliability make it a major highlight in the energy storage industry. At the same time, it also faces huge challenges at the technical level. Currently, there are some difficulties and pain points in the immersion liquid-cooled technology. For example, the problem of immersion liquid leakage, and the leakage points are concentrated at the position of the wire outlet holes. Once the energy storage immersion leaks, a series of consequences will occur, such as environmental pollution, equipment damage, economic losses, etc. Utility Model Content

[0004] To solve the above problems, this article belongs to a wire harness sealed and waterproof external connection panel for an immersion-cooled energy storage battery pack. The surface of the wire harness external connection panel is provided with cable wire harnesses in a penetrating manner. The wire harness external connection panel includes an outer panel, a covering pressure plate, and a rubber part. A wire passing cavity is protruded from the center of the back surface of the outer panel. A panel through hole is provided in a penetrating manner on the bottom surface of the wire passing cavity. A sealing rubber strip is provided in a surrounding manner outside the wire passing cavity. A rubber part is filled inside the wire passing cavity. A covering pressure plate is provided in a covering and pressing manner on the upper surface of the wire passing cavity. A pressure plate through hole is provided in a penetrating manner on the surface of the covering pressure plate. A sealing through hole is provided in a penetrating manner on the surface of the rubber part. The panel through hole, the pressure plate through hole, and the sealing through hole are all aligned with each other. The outer side of the wire passing cavity is inserted into the inner side of the sheet metal surface. By directly clamping the panel and the embedded rubber part, the cost is reduced. Compared with the conventional connectors on the market, the cost is reduced by more than 50%. It is used for an immersion energy storage battery system with the wire outlet at the top. This structural method is beneficial to the release of pressure after the internal pressure of the battery pack is too high.

[0005] The outer panel is a rectangular cast-in type plug-in panel. Fixed bolt holes are provided at the four corners of the outer panel. A wire passing cavity is protruded from the center of the back surface of the outer panel. The wire passing cavity is a cavity with an inner wall protrusion. The contour shape of the wire passing cavity is the same as the contour shape of the outer panel. Through the outer panel, it can be conveniently inserted into the sheet metal surface through the wire passing cavity and fixed through the fixed bolt holes, thereby ensuring the fixing strength of the outer panel. And the outer panel can also ensure a fitting setting on the outside of the sheet metal, which is convenient for subsequent wiring.

[0006] The sealing strip is embedded in the back of the outer panel through the sealing groove. There are two sealing grooves arranged in parallel. The sealing grooves are arranged between the wire threading cavity and the fixing bolt holes. The shape of the sealing groove is the same as the outer contour shape of the wire threading cavity. The sealing strip is connected to the sheet metal surface in a pressing manner, and the connection waterproofing between the external panel and the sheet metal is realized through the sealing strip. Moreover, the double-layer design can achieve a more efficient waterproofing effect.

[0007] The pressing cover plate is a plate-shaped clamping cover plate. The outer contour shape of the pressing cover plate is the same as the inner contour shape of the wire threading cavity. The bottom surface of the pressing cover plate is fixedly connected to the rubber part in a pressing manner. The top surface of the pressing cover plate is flush with the upper surface of the wire threading cavity. The shape of the rubber part is a rubber block. The outer contour shape of the rubber part is the same as the inner contour shape of the wire threading cavity. The outer contour size of the rubber part is larger than the inner contour size of the wire threading cavity. The rubber part is embedded and fixed inside the outer panel in the form of the pressing cover plate, thus ensuring the pressing deformation of the rubber part. During the deformation process of the rubber part, it further plays the waterproofing effect of the rubber part on the cable.

[0008] The panel perforation, the pressing plate perforation, and the sealing perforation are all equally spaced arrayed through round holes. The round holes between the panel perforation, the pressing plate perforation, and the sealing perforation are all aligned with each other. Identification numbers are correspondingly arranged on the outer sides of the panel perforation and the pressing plate perforation. The diameter of the sealing perforation is smaller than the diameters of the panel perforation and the pressing plate perforation. The panel perforation, the pressing plate perforation, and the sealing perforation are all interference perforations. Through the three aligned perforations, the cable can be in interference fit in sequence, thus realizing efficient waterproofing after the cable is led out. And identification numbers are set on the outer sides of the panel perforation and the pressing plate perforation for convenient wire threading sorting.

[0009] Beneficial effects:

[0010] By means of the directly clamped panel and the embedded rubber part, the cost is reduced. Compared with the conventional connectors on the market, the cost is reduced by more than 50%. It is used in the immersion energy storage battery system with the outlet at the top. This structural method is beneficial to the release of pressure when the internal pressure of the battery pack is too high.

[0011] The outer panel can be conveniently inserted and clamped onto the sheet metal surface through the wire threading cavity and fixed through the fixing bolt holes, thus ensuring the fixing strength of the outer panel. Moreover, the outer panel can also be ensured to be fitted on the outside of the sheet metal, facilitating subsequent wiring.

[0012] The connection waterproofing between the external panel and the sheet metal is realized through the sealing strip. Moreover, the double-layer design can achieve a more efficient waterproofing effect.

[0013] The rubber part is embedded and fixed inside the outer panel in the form of pressing the cover plate, thus ensuring the pressing deformation of the rubber part. During the deformation process of the rubber part, it further plays the role of waterproofing the cable by the rubber part.

[0014] Through three aligned perforations, the cables are sequentially in interference fit, thereby achieving efficient waterproofing after the cables are led out. And identification numbers are set outside the panel perforation and the pressing plate perforation, so as to facilitate the threading sequence. Brief Description of the Drawings

[0015] Figure 1 It is a schematic rear view of a wire harness sealing and waterproofing external panel for an immersion-cooled energy storage battery pack;

[0016] Figure 2 It is a schematic front view of a wire harness sealing and waterproofing external panel for an immersion-cooled energy storage battery pack;

[0017] Figure 3 It is an assembled cross-sectional view of a wire harness sealing and waterproofing external panel for an immersion-cooled energy storage battery pack;

[0018] In the figure: 1. Outer panel, 11. Panel perforation, 2. Fixed bolt hole, 3. Sealing rubber strip, 4. Covering pressing plate, 41. Pressing plate perforation, 5. Rubber part, 6. Sheet metal. Detailed Description of the Embodiment

[0019] To deepen the understanding of the present invention, the present invention will be further described in detail below in combination with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0020] Outer panel 1, panel perforation 11, fixed bolt hole 2, sealing rubber strip 3, covering pressing plate 4, pressing plate perforation 41, rubber part 5, sheet metal 6.

[0021] As Figure 1 、 2 、3 shown;

[0022] A wire harness sealing and waterproof external panel for an immersion-cooled energy storage battery pack. The surface of the wire harness external panel is provided with cable wire harnesses in a penetrating manner. The wire harness external panel includes an outer panel 1, a covering pressure plate 4, and a rubber part 5. The center of the back surface of the outer panel 1 protrudes to form a wire threading cavity. The bottom surface of the wire threading cavity is provided with a panel through hole 11 in a penetrating manner. A sealing rubber strip 3 is arranged around the outside of the wire threading cavity. The inside of the wire threading cavity is filled with a rubber part 5. The upper surface of the wire threading cavity is covered with a covering pressure plate 4. The surface of the covering pressure plate 4 is provided with a pressure plate through hole 41 in a penetrating manner. The surface of the rubber part 5 is provided with a sealing through hole in a penetrating manner. The panel through hole 11, the pressure plate through hole 41, and the sealing through hole are all aligned with each other. The inner side of the surface of a sheet metal part 6 is plugged into the outside of the wire threading cavity. The outer panel 1 is a rectangular cast plug-in panel. Fixed bolt holes 2 are provided at the four corners of the outer panel 1. The center of the back surface of the outer panel protrudes to form a wire threading cavity. The wire threading cavity is a cavity with an inner wall protruding. The contour shape of the wire threading cavity is the same as the contour shape of the outer panel 1. The sealing rubber strip 3 is embedded in the outer panel 1 through a sealing groove. Two sealing grooves are arranged in parallel. The sealing grooves are arranged between the wire threading cavity and the fixed bolt holes 2. The shape of the sealing grooves is the same as the outer contour shape of the wire threading cavity. The sealing rubber strip 3 is connected to the surface of the sheet metal part 6 in a pressing manner. The pressing cover plate is a plate-shaped clamping cover plate. The outer contour shape of the pressing cover plate is the same as the inner contour shape of the wire threading cavity. The bottom surface of the pressing cover plate is connected to the rubber part 5 in a pressing and fixing manner. The top surface of the pressing cover plate is flush with the upper surface of the wire threading cavity. The rubber part 5 is in the shape of a rubber block. The outer contour shape of the rubber part 5 is the same as the inner contour shape of the wire threading cavity. The outer contour size of the rubber part 5 is larger than the inner contour size of the wire threading cavity. The panel through hole 11, the pressure plate through hole 41, and the sealing through hole are all equally spaced arrayed through round holes. The round holes between the panel through hole 11, the pressure plate through hole 41, and the sealing through hole are all aligned with each other. Identification numbers are correspondingly provided on the outside of the panel through hole 11 and the pressure plate through hole 41. The diameter of the sealing through hole is smaller than the diameters of the panel through hole 11 and the pressure plate through hole 41. The panel through hole 11, the pressure plate through hole 41, and the sealing through hole are all interference holes.

[0023] Implementation example;

[0024] Each wire in the battery pack is passed through the through holes in the covering pressure plate 4, the rubber part 5, and the outer panel 1 in sequence one by one. The rubber part 5 tightly wraps the wire harness through interference fit. The rubber part 5 has a moderate hardness and sufficient interference force to prevent the immersion liquid from overflowing from the holes. And during the pressing process of the covering pressure plate 4, deformation is generated on the rubber part 5, thereby increasing the wrapping effect and sealing performance of the rubber part 5.

[0025] During the installation process, first insert the outer panel 1 into the inner side of the opening pre-opened on the sheet metal 6, and then fix it on the sheet metal 6 through the fixing bolt holes 2. Among them, the sheet metal 6 is tightly pressed by the compression sealing strip 3 to play an overall sealing role.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wire harness sealing and waterproof external panel for an immersion-cooled energy storage battery pack, the surface of the wire harness external panel is provided with a cable wire harness in a penetrating manner, and it is characterized in that, The described wire harness external panel includes an outer panel, a covering pressure plate, and a rubber part. The center of the back surface of the outer panel is provided with a wire threading cavity in a protruding manner. The bottom surface of the wire threading cavity is provided with a panel perforation in a penetrating manner. A sealing rubber strip is provided around the outside of the wire threading cavity. The inside of the wire threading cavity is filled with a rubber part. The upper surface of the wire threading cavity is covered with a covering pressure plate in a pressing manner. The surface of the covering pressure plate is provided with a pressure plate perforation in a penetrating manner. The surface of the rubber part is provided with a sealing perforation in a penetrating manner. The panel perforation, the pressure plate perforation, and the sealing perforation are all aligned with each other. The outside of the wire threading cavity is inserted into the inside of the sheet metal surface.

2. The wire harness sealing and waterproof external connection panel for an immersion-cooled energy storage battery pack according to claim 1, wherein The described outer panel is a rectangular cast-in plug-in panel. Fixing bolt holes are provided at the four corners of the outer panel. The center of the back surface of the outer panel is provided with a wire threading cavity in a protruding manner. The wire threading cavity is a cavity with a protruding inner wall. The contour shape of the wire threading cavity is the same as the contour shape of the outer panel.

3. The wire harness sealing and waterproof external connection panel for an immersion-cooled energy storage battery pack according to claim 1, wherein The described sealing rubber strip is embedded in the back surface of the outer panel through a sealing groove. Two sealing grooves are provided in a parallel manner. The sealing grooves are provided between the wire threading cavity and the fixing bolt holes. The shape of the sealing groove is the same as the outer contour shape of the wire threading cavity. The sealing rubber strip is connected to the sheet metal surface in a pressing manner.

4. The wire harness sealing and waterproof external connection panel for an immersion-cooled energy storage battery pack according to claim 1, characterized in that, The described pressing cover plate is a plate-shaped clamping cover plate. The outer contour shape of the pressing cover plate is the same as the inner contour shape of the wire threading cavity. The bottom surface of the pressing cover plate is connected to the rubber part in a pressing and fixing manner. The top surface of the pressing cover plate is flush with the upper surface of the wire threading cavity.

5. The wire harness sealing and waterproof external connection panel for an immersion-cooled energy storage battery pack according to claim 1, wherein The shape of the described rubber part is a rubber block. The outer contour shape of the rubber part is the same as the inner contour shape of the wire threading cavity. The outer contour dimension of the rubber part is larger than the inner contour dimension of the wire threading cavity.

6. The wire harness sealing and waterproof external connection panel for an immersion cooling energy storage battery pack according to claim 1, characterized in that, The panel perforation, the pressure plate perforation, and the sealing perforation are all equally spaced arrayed through-round holes. The round holes between the panel perforation, the pressure plate perforation, and the sealing perforation are all aligned with each other. Identification numbers are correspondingly provided on the outside of the panel perforation and the pressure plate perforation. The diameter of the sealing perforation is smaller than the diameters of the panel perforation and the pressure plate perforation. The panel perforation, the pressure plate perforation, and the sealing perforation are all interference perforations.

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