Housing structure of power distribution unit, power distribution unit, battery, and electrical device

Abstract

Disclosed in the present application are a housing structure (100) of a power distribution unit, a power distribution unit (200), a battery (300), and an electrical device (400). The housing structure (100) of the power distribution unit comprises: an insulating housing (110), in which an inner cavity for mounting an electrical component is formed, the insulating housing (110) being provided with a mounting side wall (111); a connector (120), which is mounted on the outer side of the mounting side wall (111) facing away from the inner cavity, the connector (120) being provided with a connection terminal (121) and a shielding layer (122), the shielding layer (122) surrounding the connection terminal (121), and the connection terminal (121) extending into the inner cavity and being electrically connected to the electrical component; a metal plate (130), which is mounted on the outer side of the mounting side wall (111) facing away from the inner cavity, the metal plate (130) being located between the connector (120) and the mounting side wall (111), the metal plate (130) being provided with a mounting through hole (131), the connection terminal (121) passing through the mounting through hole (131), and the shielding layer (122) being electrically connected to the metal plate (130); and a grounding portion (140), a first end (141) of the grounding portion being electrically connected to the metal plate (130), and a second end (142) of the grounding portion being grounded. The present technical solution aims at solving the problem of low assembly efficiency of power distribution units due to complex overall design structures of power distribution units in the related technologies.

Description

High-voltage box housing structure, high-voltage box, battery and electrical equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 5, 2024, with application number 202410251373X and invention name “Housing structure of high-voltage box, high-voltage box, battery and electrical equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the technical field of battery equipment, and in particular relates to a shell structure of a high-voltage box, a high-voltage box, a battery, and an electrical device. Background Art

[0003] With the advancement of science and technology, new energy electric vehicles are becoming increasingly popular. As one of the core components of electric vehicles, batteries serve as their energy hub. High-voltage power packs, the battery's energy distribution unit, play an irreplaceable role in the overall function of electric vehicles. During this energy distribution process, the high-voltage power pack's electromagnetic compatibility (EMC) is a key parameter.

[0004] To ensure that the high-voltage box meets EMC requirements, its connector needs to be grounded. In related art, the connector is assembled onto the box's insulating housing, making it difficult to easily and directly ground the connector. A matching grounding structure is required to achieve this. However, this matching grounding structure complicates the overall design of the high-voltage box, resulting in low assembly efficiency.

[0005] Summary of the Invention

[0006] The purpose of the present application is to provide a high-voltage box housing structure, a high-voltage box, a battery and an electrical device, aiming to solve the problem of low assembly efficiency of the high-voltage box caused by the complex overall design structure of the high-voltage box in the related art.

[0007] To achieve the above-mentioned purpose, according to the first aspect of the present application, the technical solution adopted in the present application is: a shell structure of a high-voltage box, comprising:

[0008] An insulating housing is formed with an inner cavity for mounting electrical components, and the insulating housing is provided with an assembly side wall;

[0009] A connector is mounted on the outer side of the assembly side wall away from the inner cavity, the connector is provided with a connecting terminal and a shielding layer, the shielding layer surrounds the connecting terminal, the connecting terminal passes through the assembly side wall to the inner cavity and is used to electrically connect to the electrical device;

[0010] A metal plate is installed on the outer side of the assembly side wall away from the inner cavity, and the metal plate is located between the connector and the assembly side wall. The metal plate is provided with an assembly through hole, the connection terminal passes through the assembly through hole, and the shielding layer is electrically connected to the metal plate;

[0011] The grounding portion has a first end electrically connected to the metal plate and a second end for grounding.

[0012] The high-voltage box is assembled and formed using the shell structure of the high-voltage box provided by the design of this application. Due to the additional design of the metal plate, the connector and the metal plate are both assembled on the assembly side wall of the insulating shell, and the metal plate is located between the connector and the assembly side wall. Therefore, the shielding layer of the connector can directly contact the metal plate, and the shielding layer is transferred through the metal plate. Then, grounding is achieved through the grounding part so that the high-voltage box can meet EMC requirements. The design structure of the high-voltage box of this application is simple, which greatly improves the assembly efficiency of the high-voltage box.

[0013] Moreover, since the metal plate and the grounding portion are both located on the assembly side wall of the insulating shell, there is almost no additional protrusion from the assembly side wall. In other words, the volume formed by the insulating shell is almost the same as the overall volume of the high-voltage box. Compared with the high-voltage box of the related art, the high-voltage box of the present application can reduce the overall volume of the high-voltage box, thereby reducing the assembly space required for assembling the high-voltage box.

[0014] In some embodiments of the present application, the shielding layer is inserted into the assembly through hole and contacts the hole wall of the assembly through hole, so that the shielding layer is transferred outward through the metal plate, thereby enabling grounding to be achieved more simply and directly through the grounding part.

[0015] In some embodiments of the present application, the metal plate is pre-embedded and fixed to the assembly side wall, thereby directly combining the metal plate with the insulating housing to improve production efficiency.

[0016] In some embodiments of the present application, the metal plate is fixed to the assembly side wall by a first screw connection, so that the metal plate can be quickly assembled to the assembly side wall of the insulating housing, thereby improving assembly efficiency.

[0017] In some embodiments of the present application, the metal plate includes a plate body and a connecting portion that are interconnected, and the first end of the grounding portion is secured to the connecting portion by a second screw. Alternatively, in some embodiments of the present application, the metal plate includes a plate body and a connecting portion that are interconnected, and the first end of the grounding portion is welded to the connecting portion. In this way, the shielding layer is connected through the metal plate and the grounding portion, thereby achieving grounding simply and quickly.

[0018] In some embodiments of the present application, the metal plate and the grounding portion are integrally formed, which can be assembled more quickly and improves assembly efficiency.

[0019] In some embodiments of the present application, the assembly sidewall is provided with an installation groove, and the metal plate is installed in the installation groove. In this way, the metal plate can be quickly positioned through the installation groove, so that the metal plate can be quickly assembled.

[0020] In some embodiments of the present application, the depth of the mounting groove is less than or equal to the thickness of the metal plate. This allows the shielding layer to easily and directly contact the metal plate to achieve conductivity when the connector is locked to the mounting side wall via the plurality of first screws, facilitating connection of the grounding portion to the metal plate. Thus, the shielding layer can be transferred via the metal plate and the grounding portion, thereby achieving grounding simply and quickly.

[0021] In some embodiments of the present application, the insulating housing is provided with a grounding mounting foot, the second end of the grounding portion extends to the grounding mounting foot, and the second end of the grounding portion is screwed to the grounding mounting foot. The grounding mounting foot provides a fixed mounting position for the second end of the grounding portion, thereby ensuring a fixed mounting position for the second end of the grounding portion, thereby improving the efficiency of assembling the high-voltage box to the battery.

[0022] According to a second aspect of the present application, a high-voltage box is provided. Specifically, the high-voltage box includes an electrical device and a housing structure as described above, wherein the electrical device is mounted within an inner cavity of an insulating housing of the housing structure and is electrically connected to a connection terminal of a connector of the housing structure.

[0023] The high-voltage box is obtained by assembling and molding the shell structure of the high-voltage box provided by the design of this application. Due to the additional design of the metal plate, the connector and the metal plate are both assembled on the assembly side wall of the insulating shell, and the metal plate is located between the connector and the assembly side wall. Therefore, the shielding layer of the connector can directly contact the metal plate, and the shielding layer is transferred through the metal plate, and then grounded through the grounding part so that the high-voltage box can meet the EMC requirements. The design structure of the high-voltage box of this application is simple, which greatly improves the assembly efficiency of the high-voltage box. Moreover, compared with the high-voltage box of the related art, the high-voltage box of this application can reduce the overall volume of the high-voltage box, thereby reducing the assembly space required for assembling the high-voltage box.

[0024] According to a third aspect of the present application, a battery is provided. Specifically, the battery includes the high-voltage box as described above.

[0025] In some embodiments of the present application, the battery further includes a metal casing, the high-voltage box is disposed within the metal casing, the insulating casing is provided with a plurality of connecting pins, each of which is connected to the metal casing, and the second end of the grounding portion of the casing structure is disposed in contact with the metal casing. In this manner, the second end of the grounding portion of the high-voltage box is grounded via the metal casing.

[0026] In some embodiments of the present application, each connecting leg is secured to the metal housing by screws; alternatively, the metal housing is provided with multiple locking structures, each corresponding to a connecting leg, and each connecting leg is secured to the metal housing by a corresponding locking structure. This allows the high-voltage box to be quickly assembled to the metal housing, improving assembly efficiency.

[0027] In some embodiments of the present application, the insulating housing is provided with a grounding foot, which is secured to the metal housing via a third screw. The grounding foot and the sidewall of the metal housing clamp and secure the second end of the grounding portion. This method of securing the grounding foot and the second end of the grounding portion to the metal housing via the third screw allows for quick installation of the second end of the grounding portion onto the metal housing, improving assembly efficiency.

[0028] According to a fourth aspect of the present application, an electrical device is provided. Specifically, the electrical device includes an electrical load and the aforementioned battery, wherein the battery is electrically connected to the electrical load for supplying power. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] FIG1 is a schematic structural diagram of a high-voltage box installed in a metal box shell according to the present application;

[0031] FIG2 is a partial exploded schematic diagram of the high-voltage box in FIG1 ;

[0032] FIG3 is a schematic structural diagram of another high-voltage box installed in a metal box shell of the present application;

[0033] FIG4 is a partial exploded schematic diagram of the high-voltage box in FIG3 ;

[0034] FIG5 is an exploded schematic diagram of a battery according to an embodiment of the present application;

[0035] FIG6 is a schematic structural diagram of an electrical device according to an embodiment of the present application.

[0036] Among them, the reference numerals in the figures are:

[0037] 100. Shell structure of high voltage box;

[0038] 110, insulating shell; 111, assembly side wall; 112, mounting groove; 113, grounding mounting foot; 114, connecting foot;

[0039] 120, connector; 121, connection terminal; 122, shielding layer;

[0040] 130. Metal plate; 131. Assembly through hole; 132. Plate body; 133. Connecting portion;

[0041] 140. Grounding portion; 141. First end of the grounding portion; 142. Second end of the grounding portion;

[0042] 151, first screw; 152, second screw; 153, third screw;

[0043] 200, high voltage box;

[0044] 300, battery; 310, metal box shell; 311, box body; 312, box cover; 320, battery cell;

[0045] 400. Electrical equipment; 410. Electrical load; 420. Vehicle frame. DETAILED DESCRIPTION

[0046] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0047] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0048] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0049] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0050] As people's quality of life continues to improve, their use of cars for transportation has gradually increased, driving the continuous development of the automotive industry. New energy electric vehicles have seen particularly significant growth in recent years, encompassing a range of vehicles, including family cars for commuting, buses for short-distance passenger transport, rail trains for long-distance passenger transport, and small trucks for short-distance freight transport. Among these, new energy electric vehicles (hereinafter referred to as electric vehicles, but narrowly defined as family cars for commuting) have seen particularly rapid growth, with their market share increasing year by year.

[0051] Electric vehicles derive their power from drive motors, which in turn rely on batteries to generate the required energy. The batteries also power the electric loads on the vehicle. The high-voltage power pack, the energy distribution unit that distributes energy from the battery to the drive motor and other loads, plays an irreplaceable and crucial role in the overall function of electric vehicles. Therefore, strict quality control is crucial for high-voltage power packs. The electromagnetic compatibility of high-voltage power packs is a key quality parameter.

[0052] Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate within its electromagnetic environment without causing intolerable electromagnetic interference to any other device in the environment. Therefore, EMC includes two requirements: First, the electromagnetic interference (Electromagnetic Disturbance) generated by a device or system during operation must not exceed certain limits; second, the device or system must have a certain degree of immunity to electromagnetic interference in its environment, known as electromagnetic susceptibility (EMS).

[0053] In the related art, because the connector of the high-voltage box is assembled on the insulating housing, it cannot be easily and directly grounded. A matching grounding structure must be designed to achieve grounding of the connector. However, this matching grounding structure complicates the overall design of the high-voltage box, resulting in low assembly efficiency.

[0054] Based on the above considerations, the embodiment of the present application is designed to provide a shell structure of a high-voltage box, which is assembled and formed using the shell structure to obtain a high-voltage box, and the high-voltage box is applied to a battery to perform an energy distribution function. Furthermore, the battery is applied to an electrical device, and energy is distributed to the electrical load of the electrical device through the high-voltage box to achieve power supply. The shell structure of the high-voltage box provided by the embodiment of the present application has a simple design structure, thereby improving the assembly efficiency of the high-voltage box, and can reduce the overall volume of the high-voltage box, thereby reducing the assembly space required for assembling the high-voltage box.

[0055] As shown in Figures 1 to 4, the shell structure 100 of the high-voltage box provided by the embodiment of the present application includes an insulating shell 110, a connector 120, a metal plate 130 and a grounding portion 140, and the grounding portion 140 has a first end and a second end (i.e., a first end 141 of the grounding portion and a second end 142 of the grounding portion). The insulating shell 110 is formed with an inner cavity for mounting electrical devices, and the electrical devices are used to realize the electrical function of the high-voltage box to perform energy distribution. The insulating shell 110 is provided with an assembly side wall 111, and the connector 120 is installed on the outer side of the assembly side wall 111 away from the inner cavity. The connector 120 is provided with a connecting terminal 121 and a shielding layer 122, the shielding layer 122 surrounds the connecting terminal 121, and the shielding layer 122 and the connecting terminal 121 are insulated from each other by an insulating layer, and the connecting terminal 121 passes through the assembly side wall 111 to the inner cavity and is used to be electrically connected to the electrical device. Metal plate 130 is mounted on the outside of mounting sidewall 111, facing away from the inner cavity of insulating housing 110. Metal plate 130 is located between connector 120 and mounting sidewall 111. Metal plate 130 is provided with mounting through-holes 131, through which connecting terminals 121 pass. Shielding layer 122 is electrically connected to metal plate 130. A first end 141 of the grounding portion is electrically connected to metal plate 130, and a second end 142 of the grounding portion is used for grounding.

[0056] The high-voltage box 200 is assembled and formed by applying the shell structure 100 of the high-voltage box designed and provided by the present application. Due to the additional design of the metal plate 130, the connector 120 and the metal plate 130 are both assembled on the assembly side wall 111 of the insulating shell 110, and the metal plate 130 is located between the connector 120 and the assembly side wall 111. Therefore, the shielding layer 122 of the connector 120 can directly contact the metal plate 130, and the shielding layer 122 is transferred through the metal plate 130. Then, grounding is achieved through the grounding portion 140 so that the high-voltage box 200 can meet EMC requirements. The design structure of the high-voltage box 200 of the present application is simple, which greatly improves the assembly efficiency of the high-voltage box 200.

[0057] Moreover, since the metal plate 130 and the grounding portion 140 are both located on the assembly side wall 111 of the insulating shell 110, there is almost no additional protrusion from the assembly side wall 111. That is to say, the volume formed by the insulating shell 110 is almost the same as the overall volume of the high-voltage box 200. Compared with the high-voltage box of the related art, the high-voltage box 200 of the present application can reduce the overall volume of the high-voltage box 200, thereby reducing the assembly space required for assembling the high-voltage box 200.

[0058] As shown in Figures 2 and 4, in some embodiments of the present application, the shielding layer 122 is inserted into the assembly through-hole 131, and the shielding layer 122 contacts the wall of the assembly through-hole 131, thereby achieving electrical conduction between the shielding layer 122 and the metal plate 130. When assembling the connector 120 and the metal plate 130 onto the assembly side wall 111 of the insulating housing 110, it is only necessary to stack the metal plate 130 and the connector 120 on the assembly side wall 111 in sequence, align and insert the shielding layer 122 into the assembly through-hole 131, and then fix the connector 120 and the metal plate 130 onto the assembly side wall 111. In this way, the shielding layer 122 is squeezed by the wall of the assembly through-hole 131, thereby achieving good contact between the shielding layer 122 and the wall of the assembly through-hole 131, thereby achieving electrical conduction. That is, the shielding layer 122 is electrically connected to the metal plate 130 , so that the shielding layer 122 is transferred outward through the metal plate 130 , thereby enabling grounding to be achieved more simply and directly through the grounding portion 140 .

[0059] In other embodiments of the present application, the end of the shielding layer 122 facing the inner cavity of the insulating housing 110 abuts against the surface of the metal plate 130, thereby achieving electrical continuity between the shielding layer 122 and the metal plate 130. When assembling the connector 120 and the metal plate 130 onto the assembly sidewall 111 of the insulating housing 110, the metal plate 130 and the connector 120 are simply stacked on the assembly sidewall 111, with the end of the shielding layer 122 directly abutting against the surface of the metal plate 130. The connector 120 and the metal plate 130 are then secured to the assembly sidewall 111. This ensures good contact between the shielding layer 122 and the surface of the metal plate 130, achieving electrical continuity. Thus, electrical continuity is achieved between the shielding layer 122 and the metal plate 130, allowing the shielding layer 122 to be transferred outward through the metal plate 130, thereby enabling more simple and direct grounding via the grounding portion 140.

[0060] In some embodiments of the present application, the metal plate 130 is pre-embedded and fixed to the assembly side wall 111, thereby directly combining the metal plate 130 with the insulating housing 110 to improve production efficiency. The insulating housing 110 is manufactured using an injection molding process. During the injection molding process, the metal plate 130 is fixed to the injection mold, and then molten liquid plastic is poured. After cooling and solidification, the insulating housing 110 and the metal plate 130 are integrated. In the integrated insulating housing 110 and metal plate 130, the side surface of the metal plate 130 facing away from the inner cavity of the insulating housing 110 is exposed to the assembly side wall 111. When the connector 120 is locked to the assembly side wall 111 via the plurality of first screws 151, the shielding layer 122 can easily and directly contact the metal plate 130 to achieve conductivity, facilitating the connection of the grounding portion 140 to the metal plate 130. In this way, the shielding layer 122 can be transferred through the metal plate 130 and the grounding portion 140, thereby achieving simple and quick grounding.

[0061] As shown in Figures 1 to 4, in some embodiments of the present application, the metal plate 130 is connected and fixed to the assembly side wall 111 by a first screw 151, so that the metal plate 130 is quickly assembled to the assembly side wall 111 of the insulating housing 110, thereby improving assembly efficiency. The insulating housing 110 is manufactured using an injection molding process. After the insulating housing 110 is obtained by injection molding, the metal plate 130 and the connector 120 are sequentially stacked on the assembly side wall 111 of the insulating housing 110, and then the metal plate 130 and the connector 120 are simultaneously locked to the assembly side wall 111 by a plurality of first screws 151, that is, each first screw 151 passes through the connector 120 and the metal plate 130 in sequence and is screwed and fixed to the assembly side wall 111, thereby clamping and fixing the connector 120 and the metal plate 130 to the assembly side wall 111. After the first screw 151 fixes the connector 120 and the metal plate 130 to the assembly side wall 111, the shielding layer 122 of the connector 120 contacts the metal plate 130 to achieve conduction, and the shielding layer 122 is transferred through the metal plate 130 and the grounding part 140, so that grounding can be achieved simply and quickly.

[0062] In some embodiments of the present application, as shown in FIG2 , the metal plate 130 includes a plate body 132 and a connecting portion 133 that are interconnected. The connecting portion 133 is located on a side edge of the plate body 132. In this embodiment, the metal plate 130 and the grounding portion 140 are two independent components. The first end 141 of the grounding portion is secured to the connecting portion 133 via a second screw 152, thereby achieving electrical connection between the grounding portion 140 and the metal plate 130. In this manner, the shielding layer 122 is connected via the metal plate 130 and the grounding portion 140, enabling simple and quick grounding.

[0063] In other embodiments of the present application, as shown in FIG2 , the metal plate 130 includes a plate body 132 and a connecting portion 133 that are interconnected. The connecting portion 133 is located on a side edge of the plate body 132. In this embodiment, the metal plate 130 and the grounding portion 140 are two independent components. The first end 141 of the grounding portion is welded to the connecting portion 133, thereby achieving electrical connection between the grounding portion 140 and the metal plate 130. In this way, the shielding layer 122 is connected through the metal plate 130 and the grounding portion 140, thereby achieving simple and quick grounding.

[0064] In some embodiments of the present application, the plate body 132 is square in shape, the connecting portion 133 is located on the upper edge of the plate body 132 , and the assembly through hole 131 is opened in the middle area of ​​the plate body 132 .

[0065] As shown in FIG4 , in some embodiments of the present application, the metal plate 130 and the grounding portion 140 are integrally formed. In this embodiment, the metal plate 130 and the grounding portion 140 are formed integrally by punching a metal sheet blank through a punching process. Compared to the aforementioned embodiments in which the metal plate 130 and the grounding portion 140 are two independent components, in this embodiment, once the metal plate 130 is installed on the assembly side wall 111, the grounding portion 140 is also assembled simultaneously. Therefore, the integrated metal plate 130 and the grounding portion 140 can be assembled more quickly, improving assembly efficiency.

[0066] As shown in Figures 2 and 4 , in some embodiments of the present application, the assembly sidewall 111 is provided with a mounting groove 112. During the injection molding of the insulating housing 110, the mounting groove 112 is directly molded by the injection mold. Furthermore, the metal plate 130 is mounted within the mounting groove 112. The metal plate 130 within the mounting groove 112 no longer changes position relative to the assembly sidewall 111. Thus, the mounting groove 112 allows for rapid positioning of the metal plate 130, allowing for rapid assembly of the metal plate 130.

[0067] In some embodiments of the present application, the depth of the mounting groove 112 is less than the thickness of the metal plate 130. Thus, after the metal plate 130 is mounted in the mounting groove 112, the surface of the metal plate 130 facing away from the inner cavity of the insulating housing 110 is exposed to the assembly sidewall 111. This allows the shielding layer 122 to easily and directly contact the metal plate 130 to achieve electrical conduction when the connector 120 is locked to the assembly sidewall 111 via the plurality of first screws 151, facilitating connection of the grounding portion 140 to the metal plate 130. In this way, the shielding layer 122 can be transferred through the metal plate 130 and the grounding portion 140, thereby achieving grounding simply and quickly.

[0068] In other embodiments of the present application, the depth of the mounting groove 112 is equal to the thickness of the metal plate 130. Thus, after the metal plate 130 is mounted in the mounting groove 112, the surface of the metal plate 130 facing away from the inner cavity of the insulating housing 110 is exposed to the assembly sidewall 111. This allows the shielding layer 122 to easily and directly contact the metal plate 130 to achieve electrical conduction when the connector 120 is locked to the assembly sidewall 111 via the plurality of first screws 151, facilitating connection of the grounding portion 140 to the metal plate 130. This allows the shielding layer 122 to be transferred via the metal plate 130 and the grounding portion 140, thereby achieving grounding simply and quickly.

[0069] As shown in Figures 1 to 4, in some embodiments of the present application, the insulating housing 110 is provided with a grounding mounting foot 113, the second end 142 of the grounding portion extends to the grounding mounting foot 113, and the second end 142 of the grounding portion is secured to the grounding mounting foot 113 by a third screw 153. The grounding mounting foot 113 provides a positioning mounting position for the second end 142 of the grounding portion, thereby determining the mounting position of the second end 142 of the grounding portion, thereby facilitating improved assembly efficiency of the high-voltage box 200 to the battery 300.

[0070] According to the second aspect of the present application, a high-voltage box 200 is designed and provided. In this embodiment, the high-voltage box 200 includes electrical components (not shown, including but not limited to electromagnetic relay switches, capacitors, inductors, diodes, transistors, etc., and connected by connecting wires according to the designed circuit to achieve the energy distribution function of the high-voltage box 200) and the housing structure 100 of the high-voltage box as described above. The electrical components are installed in the inner cavity of the insulating housing 110 of the housing structure 100 of the high-voltage box, and the electrical components are electrically connected to the connection terminals 121 of the connector 120 of the housing structure 100 of the high-voltage box.

[0071] The high-voltage box 200 is obtained by assembling the housing structure 100 of the high-voltage box provided by the present invention. Due to the addition of the metal plate 130, the connector 120 and the metal plate 130 are both assembled on the assembly side wall 111 of the insulating housing 110, and the metal plate 130 is located between the connector 120 and the assembly side wall 111. Therefore, the shielding layer 122 of the connector 120 can directly contact the metal plate 130, and the shielding layer 122 is transferred through the metal plate 130, and then grounded through the grounding portion 140 so that the high-voltage box 200 can meet EMC requirements. The design structure of the high-voltage box 200 of the present application is simple, which greatly improves the assembly efficiency of the high-voltage box 200. Moreover, compared with the high-voltage box of the related art, the high-voltage box 200 of the present application can reduce the overall volume of the high-voltage box 200, thereby reducing the assembly space required for assembling the high-voltage box 200.

[0072] According to the third aspect of the present application, a battery 300 is designed and provided. The battery 300 is used as an energy storage device to store electrical energy, and the battery 300 is applied to an electrical device 400 for power supply. In addition, the battery 300 provided by the embodiment of the present application is a lithium battery that can be charged and discharged multiple times. It is widely used in energy storage power supply systems of various power stations (including but not limited to energy storage power supply systems such as hydropower, thermal power, wind power and solar power stations), uninterruptible power supplies for postal and telecommunications, portable appliances (including but not limited to laptops, cameras, mobile communication terminals, power tools, etc.), electric bicycles, electric motorcycles, electric vehicles, military equipment, and aerospace equipment. In this embodiment, the battery 300 includes a high-voltage box 200 as described above, which distributes energy to the electrical loads in the electrical equipment through the high-voltage box 200, so that the electrical loads can operate normally.

[0073] In some embodiments of the present application, the battery 300 further includes a metal casing 310, as shown in Figures 1 and 3. Generally, the metal casing 310 of the battery 300 must be grounded to achieve grounding protection for the battery 300 itself. The high-voltage box 200 is disposed within the metal casing 310, and the insulating shell 110 is provided with a plurality of connecting pins 114. As shown in Figures 2 and 4, each connecting pin 114 is connected to the metal casing 310. In addition, the second end 142 of the grounding portion of the housing structure 100 of the high-voltage box is disposed in contact with the metal casing 310. In this way, the second end 142 of the grounding portion is grounded through the metal casing 310.

[0074] As shown in FIG5 , the battery 300 of the present application further includes a plurality of battery cells 320, which are mounted in a rectangular array within the mounting cavity of a metal housing 310. In this embodiment, the metal housing 310 includes a housing body 311 and a housing cover 312, with the housing cover 312 closing over the housing body 311 to form a mounting cavity. The plurality of battery cells 320 are first sequentially placed within the housing body 311 to form an array arrangement. The plurality of battery cells 320 are then assembled and connected using a wiring harness using at least one of a series connection, a parallel connection, or a parallel-parallel connection, such that the assembled battery 300 meets a predetermined rated output voltage and rated output power. The high-voltage box 200 is then mounted and secured within the housing body 311, such that the second end 142 of the grounding portion contacts the inner wall of the housing body 311. The housing cover 312 is then closed over the housing body 311 to enclose the plurality of battery cells 320 and the high-voltage box 200.

[0075] During operation of the battery 300, the metal casing 310 encases the battery cells 320, high-voltage box 200, circuit boards, and other electrical components, and is then grounded. Therefore, the metal casing 310 not only shields the electrical components within the battery 300 from external electromagnetic interference, but also shields the electromagnetic waves generated by the electrical components within the battery 300. This reduces the electromagnetic interference caused by the electrical components within the battery 300 on electrical equipment outside the battery 300, ensuring that the battery 300 meets electromagnetic compatibility requirements.

[0076] In some embodiments of the present application, each connecting pin 114 of the insulating shell 110 is fixed to the metal box shell 310 by screws, so that the high-voltage box 200 can be quickly assembled to the metal box shell 310, thereby improving assembly efficiency.

[0077] In other embodiments of the present application, the metal housing 310 is provided with a plurality of locking structures (not shown), each corresponding to the connecting pins 114. Each connecting pin 114 of the insulating housing 110 is locked to the metal housing 310 via a corresponding locking structure. This allows the high-voltage box 200 to be quickly assembled to the metal housing 310, improving assembly efficiency.

[0078] In some embodiments of the present application, the insulating housing 110 is provided with a grounding mounting foot 113. As shown in Figures 2 and 4, the grounding mounting foot 113 is secured to the metal housing 310 via a third screw 153. The grounding mounting foot 113 and the sidewall of the metal housing 310 clamp and secure the second end 142 of the grounding portion, thereby grounding the second end 142 of the grounding portion. The method of securing the grounding mounting foot 113 and the second end 142 of the grounding portion to the metal housing 310 via the third screw 153 allows for quick installation of the second end 142 of the grounding portion onto the metal housing 310, thereby improving assembly efficiency.

[0079] According to the fourth aspect of the present application, a power-consuming device 400 is designed and provided, as shown in Figure 6. In this embodiment, the power-consuming device 400 includes a power load 410 and the aforementioned battery 300, the battery 300 being electrically connected to the power load 410, and the battery 300 being used to power the power load 410.

[0080] The manufactured battery 300 can be used, but is not limited to, to provide power to mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, and spacecraft. Electric toys include, but are not limited to, stationary or mobile electric toys, such as game consoles, electric cars, electric ships, and electric airplanes. Spacecraft include, but are not limited to, airplanes, rockets, space shuttles, and spacecraft.

[0081] In an embodiment of the present application, the electrical device 400 is an electric vehicle. As shown in FIG6 , the battery 300 provided by the embodiment of the present application is used to power the drive motor of the electric vehicle. The drive motor is one of the electrical loads 410 on the electric vehicle, thereby enabling the electric vehicle to travel normally. In this embodiment, the battery 300 is mounted and fixed on the frame 420 of the electric vehicle, and the drive motor is mounted on the frame 420. The drive motor and the battery 300 are electrically connected by wiring on the frame 420, and the other electrical loads of the electric vehicle are electrically connected to the battery 300 by wiring. Thus, the battery 300 supplies power to the drive motor and other electrical loads on the electric vehicle.

[0082] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A housing structure of a high-voltage box, comprising: An insulating housing is formed with an inner cavity for mounting electrical components, and the insulating housing is provided with an assembly side wall; a connector mounted on an outer side of the assembly side wall facing away from the inner cavity, the connector being provided with a connecting terminal and a shielding layer, the shielding layer surrounding the connecting terminal, the connecting terminal passing through the assembly side wall to the inner cavity and being used to electrically connect to the electrical device; Characterized in that the shell structure of the high-voltage box also includes: a metal plate mounted on an outer side of the assembly side wall facing away from the inner cavity, and the metal plate is located between the connector and the assembly side wall, the metal plate is provided with an assembly through-hole, the connecting terminal passes through the assembly through-hole, and the shielding layer is electrically connected to the metal plate; A grounding portion, wherein a first end of the grounding portion is electrically connected to the metal plate, and a second end of the grounding portion is used for grounding.

2. The housing structure of the high-voltage box according to claim 1, characterized in that: The shielding layer is inserted into the assembly through hole, and the shielding layer contacts the hole wall of the assembly through hole.

3. The housing structure of the high-voltage box according to claim 1 or 2, characterized in that: The metal plate is pre-embedded and fixed to the assembly side wall.

4. The housing structure of the high-voltage box according to claim 1 or 2, characterized in that: The metal plate is connected to the assembly side wall by screws.

5. The housing structure of the high-voltage box according to any one of claims 1 to 4, characterized in that: The metal plate comprises a plate body and a connecting portion connected to each other, and the first end of the grounding portion is fixed to the connecting portion by a screw; Alternatively, the metal plate includes a plate body and a connecting portion that are connected to each other, and the first end of the grounding portion is welded to the connecting portion.

6. The housing structure of the high-voltage box according to any one of claims 1 to 4, characterized in that: The metal plate and the grounding portion are integrally formed.

7. The housing structure of the high-voltage box according to any one of claims 1 to 6, characterized in that: The assembly side wall is provided with an installation groove, and the metal plate is installed in the installation groove.

8. The housing structure of the high-voltage box according to claim 7, characterized in that: The groove depth of the mounting groove is less than or equal to the plate thickness of the metal plate.

9. The housing structure of the high-voltage box according to any one of claims 1 to 8, characterized in that: The insulating shell is provided with a grounding mounting foot, the second end of the grounding portion extends to the grounding mounting foot, and the second end of the grounding portion is locked to the grounding mounting foot by a screw.

10. A high voltage box, characterized in that: The invention comprises an electrical device and a housing structure of a high-voltage box according to any one of claims 1 to 9, wherein the electrical device is installed in the inner cavity of the insulating housing and is electrically connected to the connecting terminal of the connector.

11. A battery, characterized in that: Comprising the high voltage box as claimed in claim 10.

12. The battery according to claim 11, characterized in that The battery also includes a metal box shell, the high-voltage box is arranged in the metal box shell, the insulating shell is provided with a plurality of connecting pins, each of the connecting pins is connected to the metal box shell, and the second end of the grounding portion of the shell structure is arranged in contact with the metal box shell.

13. The battery according to claim 12, characterized in that: Each of the connecting legs is fixed to the metal box shell by screws; Alternatively, the metal box shell is provided with a plurality of locking structures, and the plurality of locking structures are arranged in one-to-one correspondence with the connecting pins, and each connecting pin is locked to the metal box shell through the corresponding locking structure.

14. The battery according to claim 12, wherein: The insulating shell is provided with a grounding mounting foot, and the grounding mounting foot is fixed to the metal box shell by screws, and the grounding mounting foot and the side wall of the metal box shell clamp and fix the second end of the grounding portion.

15. An electrical device, characterized in that: It comprises an electrical load and a battery as claimed in any one of claims 11 to 14, wherein the battery is electrically connected to the electrical load for supplying power.

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