A distribution box, an electric device and a vehicle

Abstract

The application relates to a power distribution box, a power utilization device and a vehicle, wherein the power distribution box comprises a first component provided with a first connecting part, a second component provided with a second connecting part, and the first connecting part is suitable for adsorbing the second connecting part so that the first component is connected to the second component. The application has the advantages that two connecting parts are respectively arranged at the splicing position of the power distribution box, in the working condition of vibration or other conditions prone to disconnection, the first connecting part adsorbs the second connecting part, the first component is tightly connected to the second component, the design discards the traditional complex connection mode, the structure is simple and novel, the installation and dismounting operation are facilitated, the assembly efficiency is effectively improved, subsequent maintenance work is greatly facilitated, operation and maintenance costs are reduced, and the connection structure design of the power distribution box has remarkable practical value and innovative significance.

Description

Technical Field

[0001] This application relates to the field of equipment technology, and more specifically to a device, electrical equipment, or vehicle. Background Technology

[0002] Distribution boxes are an important component of power management and electrical control. They typically include devices such as contactors and fuses housed within the box. These devices enable the efficient distribution of electrical energy and facilitate the opening and closing of circuits.

[0003] A distribution box has a variety of interconnected components. For example, the outer panels of the distribution box need to be interconnected to form a cavity that houses contactors, fuses, etc.

[0004] In related technologies, interconnected components rely solely on bolts or clips for fixation, lacking redundant design and prone to loosening under vibration or impact. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a distribution box that has a first connecting part on a first component and a second connecting part on a second component, wherein the first connecting part can attract the second connecting part, thereby enabling the distribution box to be better connected under different operating conditions and preventing it from falling off, thus meeting the needs of different scenarios.

[0006] The present invention also proposes an electrical device having the above-mentioned distribution box.

[0007] The present invention also proposes a vehicle having the above-mentioned distribution box and / or electrical equipment.

[0008] To achieve the above objectives, a distribution box is provided according to a first aspect embodiment of the present invention, comprising:

[0009] According to some embodiments of the present invention, the distribution box includes: a first component, wherein a first connecting portion is provided on the first component;

[0010] The second component has a second connecting part.

[0011] The first connecting portion is adapted to adsorb the second connecting portion so that the first component is connected to the second component.

[0012] According to some embodiments of the present invention, a piezoelectric part is further included, the piezoelectric part being disposed on the first component and electrically connected to the first connecting part;

[0013] The piezoelectric part is adapted to generate an electric current when squeezed, so as to form an electromagnetic field on the first connection part that attracts the second connection part.

[0014] According to some embodiments of the present invention, the first component is provided with a groove, and the second component is provided with a protrusion, the protrusion corresponding to and engaging with the groove.

[0015] According to some embodiments of the present invention, the first connecting portion is disposed in the groove, and the second connecting portion is disposed on the protrusion.

[0016] According to some embodiments of the present invention, the first component has a first mating surface and a predetermined surface, the groove is formed on the first mating surface, the predetermined surface is adjacent to the first mating surface, the groove extends toward the predetermined surface and has an opening formed on the predetermined surface, and the protrusion 6 can be inserted into the groove through the opening.

[0017] According to some embodiments of the present invention, the direction along the opening away from the predetermined surface is a first direction, the groove includes a first segment and a second segment, the first segment and the second segment are arranged sequentially along the first direction; in the first direction, the cross-section of the first segment is larger than the cross-section of the second segment.

[0018] According to some embodiments of the present invention, the groove further includes a third segment, which is located between the first segment and the second segment, and the first segment, the third segment, and the second segment are connected in sequence; in the first direction, the third segment extends in the first direction and its cross-section remains unchanged, the area of ​​the minimum cross-section of the first segment is equal to the area of ​​the cross-section of the second segment, and the area of ​​the maximum cross-section of the third segment is equal to the area of ​​the cross-section of the second segment.

[0019] According to some embodiments of the present invention, the first segment extends along the first direction and the area of ​​its cross-section gradually decreases, and / or the third segment extends along the first direction and the area of ​​its cross-section gradually decreases.

[0020] According to some embodiments of the present invention, the groove includes two opposing sidewalls extending in a direction away from the predetermined surface along the opening, and each of the two sidewalls is provided with a limiting portion located on the side of the protrusion away from the first component, so as to restrict the protrusion from disengaging in a direction away from the first component.

[0021] According to some embodiments of the present invention, the protrusion is integrally formed with the second component, the first connecting portion is disposed on the outer peripheral side of the protrusion, and the first connecting portion is disposed on the inner peripheral wall of the groove.

[0022] According to some embodiments of the present invention, the first connecting portion is configured as a magnetic device capable of generating a magnetic field.

[0023] According to some embodiments of the present invention, the second connecting portion is configured as a magnetic attraction element capable of being attracted by a magnetic field.

[0024] According to some embodiments of the present invention, the piezoelectric part is configured to include one or more of piezoelectric ceramics, piezoelectric crystals, or piezoelectric polymers.

[0025] According to a second aspect of the present invention, an electrical appliance is provided, characterized in that the electrical appliance includes a distribution box as described in the first aspect of the present invention.

[0026] According to a third aspect embodiment of the present invention, a vehicle is provided, characterized in that the vehicle includes an electrical distribution box as described in the first aspect embodiment and / or a chassis system as described in the second aspect embodiment.

[0027] By adopting the above solution, the beneficial effects of the present invention are:

[0028] The distribution box includes a first component and a second component. A first connecting part is provided on the first component, and a second connecting part is provided on the second component. The first connecting part is designed to adhere to the second connecting part. This adsorption connection method allows the first and second connecting parts to bear force evenly across the entire contact surface, avoiding the deformation or damage caused by localized stress concentration in traditional fastener connections. The adsorption connection method also improves the distribution box's vibration and impact resistance. During operation, the distribution box may be affected by external vibrations or impacts. Traditional fastener connections are prone to loosening under long-term vibration, affecting the reliability of the component connections. This adsorption connection structure has a certain degree of elasticity and buffering capacity, effectively absorbing and dispersing external vibrations and impacts, maintaining the tightness of the component connections, and ensuring stable operation of the distribution box in complex environments.

[0029] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the structure of the first component provided in an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the structure of the second component provided in an embodiment of this application;

[0033] Figure 3 A cross-sectional view of the second component provided in an embodiment of this application;

[0034] Figure 4 An exploded view of the distribution box including the base plate provided in the embodiments of this application;

[0035] Figure 5 A schematic cross-sectional view of the AA surface of the base plate provided in an embodiment of this application;

[0036] Figure 6 This is a cross-sectional view of the AA surface of the base plate provided in an embodiment of this application.

[0037] Figure label:

[0038] 11. First component; 12. Second component

[0039] 2. First connecting part;

[0040] 3. Second connecting part;

[0041] 4. Piezoelectric component;

[0042] 5. Groove; 51. Pre-determined surface; 511. First section; 513. Second section; 512. Third section; 52. Mating surface; 531. First sidewall; 532. Second sidewall;

[0043] 6. Protrusion 6;

[0044] 7. Base plate;

[0045] 81. First water channel; 82. Second water channel; 83. Heat-conducting column. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0050] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0051] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0052] To fully understand this application, a detailed structure will be presented in the following description to illustrate the technical solutions proposed in this application. Preferred embodiments of this application are described in detail below; however, in addition to these detailed descriptions, this application may have other implementation methods.

[0053] like Figures 1-2 As shown, the distribution box according to an embodiment of the present invention includes: a first component 11, on which a first connecting portion 2 is provided; a second component 12, on which a second connecting portion 3 is provided; the first connecting portion 2 is adapted to attract the second connecting portion 3 so that the first component 11 is connected to the second component 12.

[0054] It is understood that the first component 11 can be any device in the distribution box that needs to be connected to each other, such as the first and second plates used to enclose and form a space, or various components that undertake different functions such as electrical component installation and cable management; the second component 12 is adapted to the corresponding matching component according to the selection of the first component 11 and the actual connection requirements.

[0055] The following describes the embodiments of the present invention using a first plate as the first component 11 and a second plate as the second component 12 as an example. The first plate and the second plate are connected to each other, typically at the side wall of the plate component. In actual product setups, this connection can also be at the top or bottom. A first connecting part 2 is provided on the first plate, and a second connecting part 3 is provided on the second plate. The first connecting part 2 and the second connecting part 3 are directly connected by adsorption. This adsorption connection method simply requires bringing the side of the first plate with the first connecting part 2 close to the second connecting part 3 of the second plate, using the adsorption force to achieve initial positioning and fixation. The entire process requires no additional fasteners, significantly reducing the number of operation steps and shortening the installation time to 3 to 5 minutes, resulting in a significant improvement in efficiency. This connection method not only improves installation efficiency but also effectively absorbs and disperses external vibrations and impacts when the distribution box is subjected to vibration or impact. Taking magnetic adsorption connection as an example, when subjected to vibration or impact, the magnetic force will produce a certain elastic deformation, absorbing some energy and reducing the impact on the component connection. At the same time, the tight fit between the connecting parts can prevent the components from shifting relative to each other due to vibration, maintain the tightness of the component connection, and ensure the stable operation of the distribution box in complex environments.

[0056] It is understandable that, such as Figures 1-2 The first plate is provided with a first connecting part 2 and a second connecting part 3, and the second plate is provided with a first connecting part 2 and a second connecting part 3. In this embodiment where multiple first plates and multiple second plates are spliced ​​together, it can be seen that the first plate has an arc-shaped structure. The first plate integrates the bend of the distribution box through pre-molding. This setting makes the connection of the easily detachable bend more secure. The second plate can be an arc-shaped structure or a block shape. The connection between the first plate and the second plate is on the same straight line. This setting saves materials and is also the optimal connection method.

[0057] In some embodiments, such as Figure 4 As shown, it also includes a piezoelectric part 4, which is disposed on the first component 11 and is electrically connected to the first connecting part 2; the piezoelectric part 4 is adapted to generate current when squeezed, so as to form an electromagnetic field on the first connecting part 2 that attracts the second connecting part 3.

[0058] In some embodiments, the piezoelectric part 4 is configured to include one or more of piezoelectric ceramics, piezoelectric crystals, or piezoelectric polymers.

[0059] In some embodiments, the first connecting part 2 is configured as a magnetic device capable of generating a magnetic field.

[0060] In some embodiments, the second connecting portion 3 is configured as a magnetic element capable of being attracted by a magnetic field.

[0061] Understandably, the piezoelectric part 4 is typically made of piezoelectric materials, such as piezoelectric ceramics, piezoelectric crystals, or piezoelectric polymers, which possess unique direct and inverse piezoelectric effects. A thin sheet of piezoelectric material is embedded at the critical joint of the first connecting part 2. When the distribution box is subjected to external vibration, the joint undergoes slight deformation, generating mechanical stress on the piezoelectric material sheet. Following the reverse process of the inverse piezoelectric effect, this mechanical stress acts on the piezoelectric material sheet, causing polarization within it and creating a potential difference across the sheet, converting the mechanical energy of the vibration into electrical energy. The specific output parameters of the electrical energy are closely related to the performance of the piezoelectric material, the degree of deformation at the joint, and the vibration frequency. For example, high-performance PZT piezoelectric materials can output voltages from several volts to tens of volts and currents in the milliampere range under large deformation and suitable vibration frequencies.

[0062] The piezoelectric part 4 is disposed on the first component 11, and the first component 11 is provided with a first connecting part 2. The first connecting part 2 is configured as a magnetic device. The magnetic device includes various types, such as one or more of the following: electromagnetic lock, magnetometer, magnetic separation device, magnetic field generating device, magnetic detection device, magnetic mine sweeping device, magnetic communication device, magnetic guidance device, etc. In this invention, the first connecting part 2 takes an electromagnetic lock as an example. The electromagnetic lock and the piezoelectric part 4 are electrically connected on the first plate. After the piezoelectric part 4 deforms and generates mechanical stress, through a series of changes, the mechanical energy of the vibration will be converted into electrical energy, driving the electromagnetic lock to strengthen the attraction force, so as to strengthen the connection with the second connecting part 3 on the second plate. The second connecting part 3 is configured as a magnetic material. A magnetic material is a material that can respond to a magnetic field in a certain way. It can be a permanent magnet material, a soft magnetic material, or other magnetic materials. In this invention, iron is used as the magnetic material. Iron is inexpensive, and its magnetic attraction capability can meet the direct attraction requirements of the plates. It is also easy to replace.

[0063] Meanwhile, the present invention can also add a sensor device to the electromagnetic lock. In this solution, the sensor device is configured as an acceleration sensor. The electromagnetic lock with the added acceleration sensor supports dynamic response adjustment. When continuous bumps are detected by the acceleration sensor, the electromagnetic lock is automatically activated to achieve active fastening.

[0064] In some embodiments, such as Figures 1-2As shown, the first component 11 has a groove 5, and the second component 12 has a protrusion 6, which corresponds to and engages with the groove 5. It can be understood that by providing the groove 5 on the first component and the protrusion 6 on the second component, the relative movement of the two components in multiple directions can be effectively restricted through the interlocking mechanism. In this invention, the groove 5 can be a wedge-shaped groove, similar to a triangle with its top cut off, exhibiting a shape that is wider at the top and narrower at the bottom, or vice versa, with sloping edges and asymmetry. Its tilt angle and dimensional parameters are adjustable to adapt to different functional requirements. The structure of the protrusion 6 is complementary to the shape of the groove 5, and can be set as trapezoidal or wedge-shaped, achieving a tight engagement through size matching.

[0065] In some embodiments, such as Figures 1-3 As shown, the first connecting part 2 is disposed within the groove 5, and the second connecting part 3 is disposed on the protrusion 6. It is understood that by placing the first connecting part 2 within the groove 5, as clearly described above, the first connecting part 2 is configured as a magnetic device. Placing the magnetic device within the groove 5 provides a physical barrier, reducing the risk of it being subjected to external impacts or scratches during equipment transportation, installation, and operation. For example, in an industrial automated production line, the magnetic adsorption device at the end of a robotic arm used to grip workpieces, embedded in the groove 5, can avoid direct collisions with surrounding equipment or workpieces, ensuring the structural integrity of key components such as magnets and coils within the magnetic device. Furthermore, since the second connecting part 3 is configured as a magnetic material, and this magnetic material is disposed on the protrusion 6, it can adhere tightly to the protrusion 6 in a sampling and covering manner. When the protrusion 6 and the groove 5 are engaged, the mutual compression allows the magnetic material to adhere even more tightly to the protrusion 6.

[0066] The piezoelectric material is placed on the two opposite sidewalls of the groove 5 to form an electrical connection with the magnetic device. This arrangement can effectively improve the stability of the piezoelectric material to the magnetic device and reduce the amount of piezoelectric material used. It meets the magnetic force requirements of the magnetic device in the most cost-effective way. Of course, in other solutions, the piezoelectric material can also be placed on the protrusion 6 or other positions.

[0067] In some embodiments, such as Figure 1As shown, the first component 11 has a mating surface 52 and a predetermined surface 51. The groove 5 is formed on the mating surface 52, which is adjacent to the predetermined surface 51. The groove 5 extends towards the predetermined surface 51 and has an opening on the predetermined surface 51. The protrusion 6 can pass through the opening into the groove 5. It can be understood that the first plate has a first mating surface 52 and a predetermined surface 51. The mating surface 52 is the surface that mates with the second plate. The first mating surface 52 serves as the direct bearing surface of the groove 5, providing a contact and mating reference for the protrusion 6 and the groove 5. The predetermined surface 51 is adjacent to the first mating surface 52. The groove 5 extends to the predetermined surface 51 to form an opening, allowing the protrusion 6 to pass into the groove 5 via a lateral or oblique path. This design breaks through the traditional single-surface mating limitation, enabling multi-directional installation, and is particularly suitable for scenarios with limited space or requiring concealed installation. The groove 5 extends toward the predetermined surface 51, forming a three-dimensional space such as "L-shaped" or "T-shaped", providing a larger range of motion or load-bearing space for the protrusion 6. It is suitable for scenarios where the protrusion 6 needs to slide, rotate, or be subjected to multi-directional forces within the groove 5.

[0068] In some embodiments, such as Figure 3 As shown, the first direction is the direction away from the predetermined surface 51 along the opening. The groove 5 includes a first segment 511 and a second segment 513, which are arranged sequentially along the first direction. In the first direction, the cross-section of the first segment 511 is larger than the cross-section of the second segment 513.

[0069] In some embodiments, such as Figure 3 As shown, the groove 5 also includes a third segment 512, which is located between the first segment 511 and the second segment 513. The first segment 511, the third segment 512 and the second segment 513 are connected in sequence.

[0070] In some embodiments, such as Figure 3 As shown, in the first direction, the third segment 512 extends in the first direction and the area of ​​the cross-section remains unchanged. The area of ​​the minimum cross-section of the first segment 511 is equal to the area of ​​the cross-section of the second segment 513, and the area of ​​the maximum cross-section of the third segment 512 is equal to the area of ​​the cross-section of the second segment 513.

[0071] In some embodiments, the first segment 511 extends along a first direction and the area of ​​its cross-section gradually decreases, and / or the third segment 512 extends along the first direction and the area of ​​its cross-section gradually decreases.

[0072] It is understandable that this groove is divided into 5 segments and the cross-sectional area gradually changes along a specific direction.

[0073] In this invention, the groove 5 adopts a stepped-gradient composite design of cross-sectional area, including a first segment 511, a second segment 513 and a third segment 512. The third segment 512 is located between the first segment 511 and the second segment 513. The first segment 511, the third segment 512 and the second segment 513 are connected in sequence. This three-segment groove 5 structure achieves functional layering, dynamic adaptation and compatibility with complex working conditions through a stepped-gradient design. The cross-sectional area gradually shrinks, and the manufacturing error of the protrusion 6 is absorbed through deformation or gaps, reducing the impact of direct impact on the second segment 513.

[0074] The first segment 511 features a gradually decreasing cross-sectional area at the entrance guide section: the cross-sectional area along the first direction decreases linearly / non-linearly from the entrance end to the connecting end of the third segment 512, forming a trumpet-shaped guide structure. The first segment 511 has a relatively large cross-sectional area, serving as a guide and coarse positioning element, providing ample entrance space to facilitate the rapid entry of the protrusion 6 into the groove 5, reducing alignment difficulties. For example, in blind assembly scenarios, the large entrance can serve as a visual or tactile guide marker, improving assembly efficiency.

[0075] The second segment 513 has a smaller cross-sectional area. In this invention, it is configured as a structure with a constant cross-sectional area extending along the first direction. This structure not only plays a role in stabilizing and strengthening, but also makes it difficult for the protrusion 6 to fall off inside the groove 5. It has the functions of precise positioning and locking and fixing. It achieves high-precision positioning or load-bearing function by closely cooperating with the protrusion 6.

[0076] The third segment 512 has a constant cross-section-gradient composite transition section. In the initial part near the first segment 511, it maintains the same cross-sectional area as the second segment 513 to form a rigid bearing platform for stable transmission of axial force. In the part near the end, the cross-sectional area decreases linearly to form a wedge-shaped self-locking structure.

[0077] In some embodiments, such as Figure 1 As shown, the groove 5 includes two opposing sidewalls extending in a direction away from the predetermined surface 51. Each sidewall has a limiting portion located on the side of the protrusion 6 away from the first component 11, thus restricting the protrusion 6 from disengaging in the direction away from the first component 11. It can be understood that the two sidewalls include a first sidewall 531 and a second sidewall 532. By providing limiting portions on the first sidewall 531 and / or the second sidewall 532, the movement of the protrusion 6 is restricted, making the assembly between the first plate and the second plate more compact. The limiting portion can be configured as a protrusion, a step, or an elastic buckle, etc. The limiting portion is located on the side of the protrusion 6 away from the first component 11, preventing the protrusion 6 from disengaging through physical blocking and elastic constraint.

[0078] In some embodiments, such as Figure 4As shown, the distribution box also includes a base plate 7, which is connected to multiple first plates and multiple second plates to form the box body. It is understood that the base plate 7, as the bottom component of the distribution box, is preferably made of cold-rolled steel to meet the load-bearing requirements of the distribution box; however, other suitable materials can be selected according to actual product requirements.

[0079] In some embodiments, such as Figures 4-6 As shown, the base plate 7 includes water channels located on the outside of the box. The water channels include a first water channel 81 and a second water channel 82, and the first water channel 81 and the second water channel 82 are connected.

[0080] In some embodiments, the first water channel 81 and the second water channel 82 are arranged in layers, the first water channel 81 is located close to the bottom plate 7, and the cross-sectional area of ​​the first water channel 81 is smaller than the cross-sectional area of ​​the second water channel 82.

[0081] Understandably, the outer side of the base plate 7 is integrated with a double-layer water channel system. The first water channel 81 is in close contact with the base plate 7 substrate, and quickly absorbs heat from the equipment's heat source through direct contact heat transfer. The first water channel 81 is designed as a low-speed, slow-flow layer to increase contact time and thus fully absorb heat.

[0082] The second water channel 82 is located below the first water channel 81 and away from the bottom plate 6. As the main flow regulation layer, it is connected to the first water channel 81 in a spiral manner to achieve fluid mixing and pressure balance. The second water channel 82 is a high-speed turbulent layer that can quickly remove heat.

[0083] In some embodiments, such as Figure 6 As shown, the water channel is also provided with heat-conducting columns 83. There are multiple heat-conducting columns 83, which are spaced apart and pass through the first water channel 81 and the second water channel 82.

[0084] In some embodiments, the distance between two adjacent heat-conducting pillars 83 is smaller as it gets closer to the center of the base plate 7.

[0085] Understandably, in order to enhance the cross-layer thermal coupling efficiency of the layered water channels, the heat conduction column 83 is optimized through topology, reconstructed through thermal resistance network, and designed in a multi-physics field. The heat conduction column 83 extends the heat transfer time by passing through the two water channels. It adopts a layout that is dense on the inside and sparse on the outside, which improves the heat dissipation efficiency of the coolant by 30%-40% compared with the traditional single water channel and reduces the energy consumption of the water pump by about 15%.

[0086] Other configurations and operations of the electrical equipment and vehicles according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0087] In understanding the scope of this invention, the term "comprising" and its derivatives, as used herein, are intended to be open-ended terms that specify the presence of the described features, elements, components, groups, integrals, and / or steps, but do not exclude the presence of other undescribed features, elements, components, groups, integrals, and / or steps. This concept also applies to words with similar meanings, such as the terms "comprising," "having," and their derivatives.

[0088] The term "attached" or "joined" as used herein includes: a construction in which one element is directly fixed to another element by fixing it directly to another element; a construction in which one element is indirectly fixed to another element by fixing it to an intermediate member, which in turn is fixed to another element; and a construction in which one element is integral with another element, that is, one element is substantially part of another element. This definition also applies to words with similar meanings, such as "connect," "joint," "couple," "install," "adhere," "fix," and their derivatives. Finally, degree terms such as "substantially," "approximately," and "approximately" as used herein indicate the amount of deviation from which modifications to the terminology do not significantly alter the final result.

[0089] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0090] The invention has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the invention to the described embodiments. Furthermore, those skilled in the art will understand that the invention is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of the invention, all of which fall within the protection scope of the invention.

Claims

1. A distribution box, characterized in that, The device includes: A first component, wherein a first connecting portion is provided on the first component; The second component has a second connecting part. The first connecting portion is adapted to adsorb the second connecting portion so that the first component is connected to the second component.

2. The device according to claim 1, characterized in that, It also includes a piezoelectric part, which is disposed on the first component and is electrically connected to the first connecting part; The piezoelectric part is adapted to generate an electric current when squeezed, so as to form an electromagnetic field on the first connection part that attracts the second connection part.

3. The device according to claim 1, characterized in that, The first component has a groove, and the second component has a protrusion, which corresponds to and engages with the groove.

4. The device according to claim 3, characterized in that, The first connecting part is disposed in the groove, and the second connecting part is disposed on the protrusion.

5. The device according to claim 3, characterized in that, The first component has a mating surface and a predetermined surface. The groove is formed on the mating surface, and the predetermined surface is adjacent to the mating surface. The groove extends toward the predetermined surface and has an opening formed on the predetermined surface. The protrusion can pass through the opening into the groove.

6. The device according to claim 5, characterized in that, The direction away from the predetermined surface along the opening is the first direction. The groove includes a first segment and a second segment, which are arranged sequentially along the first direction. In the first direction, the cross-section of the first segment is larger than the cross-section of the second segment.

7. The device according to claim 6, characterized in that, The groove further includes a third segment, which is located between the first segment and the second segment, and the first segment, the third segment, and the second segment are connected in sequence; In the first direction, the third segment extends in the first direction and its cross-section remains unchanged. The area of ​​the minimum cross-section of the first segment is equal to the area of ​​the cross-section of the second segment, and the area of ​​the maximum cross-section of the third segment is equal to the area of ​​the cross-section of the second segment.

8. The device according to claim 7, characterized in that, The first segment extends along the first direction and the area of ​​its cross-section gradually decreases, and / or the third segment extends along the first direction and the area of ​​its cross-section gradually decreases.

9. The device according to claim 5, characterized in that, The groove includes two opposing sidewalls that extend along the opening away from the predetermined surface. Each sidewall is provided with a limiting portion located on the side of the protrusion away from the first component to restrict the protrusion from disengaging in the direction away from the first component.

10. The device according to claim 4, characterized in that, The protrusion is integrally formed with the second component, the first connecting part is provided on the outer peripheral side of the protrusion, and the first connecting part is provided on the inner peripheral wall of the groove.

11. The device according to claim 1, characterized in that, The first connecting part is configured as a magnetic device capable of generating a magnetic field.

12. The device according to claim 1, characterized in that, The second connecting part is configured as a magnetic attraction element that can be attracted by a magnetic field.

13. The device according to claim 2, characterized in that, The piezoelectric element is configured to include one or more of piezoelectric ceramics, piezoelectric crystals, or piezoelectric polymers.

14. An electrical appliance, characterized in that, The electrical equipment includes a distribution box as described in any one of claims 1 to 13.

15. A vehicle, characterized in that, The vehicle includes a power distribution box as described in any one of claims 1 to 13 and / or electrical equipment as described in claim 14.

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