Fixed connection assembly, electronic equipment and power system

Abstract

The utility model provides a fixed connection assembly, electronic equipment and an electric power system, and relates to the field of electrical technology. In the fixed connection assembly, a limiting structure comprises an insulating seat and a limiting piece, an accommodating cavity and a first hole communicated with the accommodating cavity are formed in the insulating seat, and the limiting piece is accommodated in the accommodating cavity; the insulating seat is used for being arranged at a second hole in an electrical structure, the first connecting piece is used for being arranged in a third hole, the second hole and the first hole in a to-be-connected structure in a penetrating mode, one end of the first connecting piece is connected with the limiting piece, and the other end of the first connecting piece is connected with the to-be-connected structure at the third hole, so that relative position fixation of the electrical structure and the to-be-connected structure is achieved; wherein the to-be-connected structure comprises a first shell, the electrical structure is located in a mounting cavity of the first shell, and at least the inner surface of the first shell is insulated from the electrical structure. According to the utility model, reliable connection between the electrical structure and the structure to be connected can be realized, a leakage conductive path of the electrical structure formed by a fixed connection structure can be avoided, and potential safety hazards can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, and in particular to a fixed connection component, electronic equipment and a power system. Background Art

[0002] Some electronic devices, such as inverters and power optimizers, usually have a housing structure and an electrical structure such as a circuit board disposed inside the housing structure. The electrical structure is often fixedly connected to the housing structure through a screw connection structure. To ensure the stability of the connection between the electrical structure and the housing structure, the screws and nuts are often made of metal. In this way, it is generally necessary to perform grounding protection on the electronic equipment to protect personnel and equipment safety and to provide electrostatic protection.

[0003] However, maintenance, aging, damage or improper installation of equipment may lead to grounding failure. Some small-scale equipment is not equipped with grounding devices. In these cases, the electrical structure is prone to form a conductive leakage path through the screw connection structure, which in turn causes safety hazards. In other cases, screws and nuts are insulators, but this setting method will affect the reliability of the screw connection structure and the service life of the connection structure. Utility Model Content

[0004] The utility model aims to solve the problem of how to balance the installation reliability and conductive safety of the electrical structure in the related art to a certain extent.

[0005] In order to solve at least one aspect of the above-mentioned problems to at least a certain extent, in the first aspect, the utility model provides a fixed connection assembly, including a limiting structure and a first connecting member; the limiting structure includes an insulating seat and a limiting member, the insulating seat is formed with a accommodating cavity and a first hole connected to the accommodating cavity; the limiting member is accommodated in the accommodating cavity; the insulating seat is used to be arranged at the second hole on the electrical structure, and the first connecting member is used to pass through the third hole, the second hole and the first hole on the structure to be connected, one end of the first connecting member is connected to the limiting member, and the other end is connected to the structure to be connected at the third hole, so as to achieve relative position fixation of the electrical structure and the structure to be connected; wherein, the structure to be connected includes a first shell, the electrical structure is located in the installation cavity of the first shell, and at least the inner surface of the first shell is insulated from the electrical structure.

[0006] Optionally, the limiting member is provided with a fourth hole, and when the limiting member is accommodated in the accommodating cavity, the fourth hole corresponds to the position of the first hole, and the first connecting member is used to be connected to the limiting member at the fourth hole.

[0007] Optionally, the first connecting member is a threaded connecting member, which is inserted through the third hole, the second hole and the first hole from the outside to the inside of the first shell, and is threadedly connected to the fourth hole;

[0008] Alternatively, the first connecting member is a snap-on connecting member, which includes a snap-on column and snap-on blocks at both ends of the snap-on column, the snap-on column is inserted into the third hole, the second hole, the first hole and the fourth hole, and the snap-on blocks at both ends of the snap-on column are respectively abutted against end faces of the third hole and the fourth hole that are away from each other.

[0009] Optionally, the limiting member is detachably connected to the insulating seat in a limiting manner.

[0010] Optionally, a first clamping connection structure is provided between the limiting member and the insulating seat, and when the limiting member is accommodated in the accommodating cavity, the limiting member and the insulating seat are connected via the first clamping connection structure;

[0011] And / or, the insulating seat is also provided with a limiting guide groove, the extension direction of the limiting guide groove is set at a preset angle with the hole depth direction of the first hole, one end of the limiting guide groove is connected to the first hole to form the accommodating cavity, and the limiting member is movably connected to the limiting guide groove in the extension direction of the limiting guide groove.

[0012] Optionally, the first clamping connection structure includes a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion are respectively formed on the limiting member and the insulating seat;

[0013] Wherein, when the first clamping connection structure is provided between the limiting member and the insulating seat, and the insulating seat is further provided with the limiting guide groove; the second clamping portion is formed on the groove wall of the limiting guide groove.

[0014] Optionally, a first groove wall of the limiting guide groove is provided with a notch portion, and the notch portion forms an elastic column on the remaining portion of the first groove wall, and the second clamping portion is formed at a free end of the elastic column.

[0015] Optionally, the extension direction of the elastic column is consistent with the extension direction of the limiting guide groove, and the end of the elastic column close to the first hole is a free end;

[0016] And / or, in the hole depth direction of the third hole, the first groove wall is the groove wall of the limiting guide groove away from the third hole, and the notch portion is arranged to penetrate the first groove wall in a direction away from the third hole.

[0017] Optionally, the limiting member is connected to the insulating seat to form an integrated structure.

[0018] Optionally, in the hole depth direction of the third hole, the insulating seat is at least partially located on a side of the electrical structure away from the third hole, and abuts against the electrical structure on a side of the electrical structure away from the third hole;

[0019] And / or, the insulating seat is provided with a guide post, the guide post is inserted into at least the second hole in the second hole and the third hole, and the first hole is formed on the guide post;

[0020] And / or, the insulating seat is connected to the electrical structure via a second clamping connection structure to limit the movement of the insulating seat relative to the electrical structure in at least one direction.

[0021] Optionally, the guide column is provided on the insulating seat, and the cross-sectional shape of the partial column section of the guide column corresponding to the second hole and the cross-sectional shape of the second hole are matched with each other in a non-centrosymmetric structure;

[0022] And / or, the insulating seat is provided with the guide column, and when the guide column is also inserted into the third hole, the cross-sectional shape of the partial column section of the guide column corresponding to the third hole and the cross-sectional shape of the third hole are a matching non-centrosymmetric structure;

[0023] And / or, when the guide column is provided on the insulating seat and the insulating seat is connected to the electrical structure via a second clamping connection structure, the second clamping connection structure includes a third clamping portion provided on the insulating seat, and the third clamping portion is located on the guide column.

[0024] Optionally, the structure to be connected further comprises a radiator, and the radiator is located outside the first shell;

[0025] and / or, the electrical structure comprises a circuit board;

[0026] And / or, the first shell is made of insulating material;

[0027] And / or, the first shell also includes an open opening, the second shell cover is arranged at the open opening, the first shell and the second shell are connected by a third clamping connection structure and at least one of the second connecting members, and the second shell is provided with a fifth hole for connecting with the second connecting member, and the fifth hole is any one of a through hole and a blind hole.

[0028] In a second aspect, the utility model provides an electronic device, comprising an electrical structure, a structure to be connected and a fixed connection component as described in the first aspect above, wherein the insulating seat of the limiting structure of the fixed connection component is used to be set at the second hole on the electrical structure, and the first connecting member of the fixed connection component is used to pass through the third hole on the structure to be connected, the second hole and the first hole of the insulating seat, one end of the first connecting member is connected to the limiting member of the limiting structure, and the other end is connected to the structure to be connected at the third hole, so as to achieve relative position fixation of the electrical structure and the structure to be connected; wherein the structure to be connected comprises a first shell, the electrical structure is located in the installation cavity of the first shell, and at least the inner surface of the first shell is insulated from the electrical structure.

[0029] In a third aspect, the utility model provides an electric power system, comprising the fixed connection assembly as described in the first aspect above, or comprising the electronic device as described in the second aspect above.

[0030] Compared with the related prior art, in the fixed connection assembly, electronic equipment and power system of the utility model, the limiter is accommodated in the accommodating cavity of the insulating seat, and the insulating seat is formed with a first hole connected to the accommodating cavity, so that when the insulating seat of the limiter structure is set at the second hole on the electrical structure and the electrical structure is placed at a suitable position inside the first shell of the structure to be connected, the first hole of the insulating seat, the second hole of the electrical structure and the third hole of the structure to be connected can correspond to each other in a set direction, such as the up and down direction, and the first connecting member is set to penetrate the third hole, the second hole and the first hole, and one end of the first connecting member is connected to the limiter, and the other end is connected to the structure to be connected at the third hole. The electrical structure and the structure to be connected are connected, so that the relative position of the electrical structure and the structure to be connected in the vertical direction can be fixed by fixing the connection assembly; and the stopper does not directly contact the electrical structure, but is connected to the electrical structure through an insulating seat, so that the insulation between the stopper and the electrical structure can be achieved, and the electrical structure and the stopper can be avoided from directly contacting to form a conductive path. The setting of the insulating seat can meet the requirements of the "safety distance" between the electrical structure and the stopper; at the same time, since at least the inner surface of the first shell is insulated from the electrical structure, for example, the first shell is set as an insulating shell, so that the electrical structure can be avoided from forming a conductive path through the structure to be connected (for example, the first shell), the first connector and the stopper. In general, the utility model can achieve a reliable connection between the electrical structure and the structure to be connected, for example, the first connector and the stopper can be made of metal materials, and on the basis of achieving the fixing of the electrical structure inside the first shell, the insulation of the electrical structure can be ensured, that is, the insulation of the electrical structure and the fixed connection structure can be ensured, and the leakage conductive path of the electrical structure can be avoided due to the setting of the fixed connection structure, thereby reducing safety hazards. In particular, when the grounding of the equipment fails or even has no grounding, the insulation of the electrical structure can be ensured to a certain extent, and its conductive safety can be improved. The utility model can take into account both the installation reliability requirements and the conductive safety requirements of the electrical structure, and has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional schematic diagram of a fixed connection assembly in the first embodiment of the utility model;

[0032] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0033] Figure 3 It is a structural schematic diagram of the first embodiment of the utility model when the limiting member is arranged at the accommodating cavity at one end of the limiting guide groove;

[0034] Figure 4 for Figure 3 Another structural schematic diagram of the limiting structure shown;

[0035] Figure 5 It is another structural schematic diagram of the first embodiment of the utility model in which the limiting member is arranged in the limiting guide groove;

[0036] Figure 6 It is a structural schematic diagram of an electronic device in an embodiment of the utility model;

[0037] Figure 7 It is a structural schematic diagram of a second embodiment of the present utility model in which the limiting member is arranged at the accommodating cavity at one end of the limiting guide groove;

[0038] Figure 8 This is a structural schematic diagram of a first clamping connection structure provided between the limiting member and the insulating seat in the second embodiment of the utility model;

[0039] Fig. 9 It is a structural schematic diagram of the guide post on the insulating seat inserted into the second hole 31 in the third embodiment of the utility model;

[0040] Fig.10 This is a structural schematic diagram of the fourth embodiment of the utility model in which the insulating seat and the electrical structure are connected via a second clamping connection structure;

[0041] Fig.11 This is a structural schematic diagram of a fifth embodiment of the present utility model in which the cross-sectional shapes of the column sections of the guide column corresponding to the second hole and the third hole are both non-centrosymmetrical structures.

[0042] Description of reference numerals:

[0043] 1-limiting structure; 11-insulating seat; 111-accommodating cavity; 112-first hole; 113-limiting guide groove; 114-notch; 115-guide column; 1151-first protrusion; 12-limiting member; 121-fourth hole; 2-first connecting member; 3-electrical structure; 31-second hole; 4-structure to be connected; 41-first shell; 411-installation cavity; 412-opening; 413-support column; 414-setting plate; 42-heat sink; 421-base; 422-fin; 43-third hole; 5-second shell; 6-first snap-fit ​​connection structure; 61-first snap-fit ​​part; 62-second snap-fit ​​part; 63-elastic column; 7-second snap-fit ​​connection structure; 71-third snap-fit ​​part. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0047] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0048] In the accompanying drawings, the Z axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis (that is, the direction of the arrow of the Z axis) represents the up, and the negative direction of the Z axis represents the down; the X axis in the accompanying drawings represents the front and back position, and the positive direction of the X axis (that is, the direction of the arrow of the X axis) represents the front side, and the negative direction of the X axis represents the back side; the Y axis in the accompanying drawings represents the horizontal direction and is designated as the left and right position, and the positive direction of the Y axis (that is, the direction of the arrow of the Y axis) represents the right side, and the negative direction of the Y axis represents the left side; it should be noted that the aforementioned Z axis, Y axis and X axis are only for the convenience of describing the present invention 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 to the present invention.

[0049] like Figure 1 and Figure 2As shown, in the first aspect, the utility model provides a fixed connection component, including a limiting structure 1 and a first connecting member 2; the limiting structure 1 includes an insulating seat 11 and a limiting member 12, the insulating seat 11 is formed with a accommodating cavity 111 and a first hole 112 connected to the accommodating cavity 111, and the limiting member 12 is accommodated in the accommodating cavity 111; the insulating seat 11 is used to be arranged at the second hole 31 on the electrical structure 3, and the first connecting member 2 is used to pass through the third hole 43, the second hole 31 and the first hole 112 on the structure to be connected 4, one end of the first connecting member 2 is connected to the limiting member 12, and the other end is connected to the structure to be connected 4 at the third hole 43, so as to achieve the relative position fixation of the electrical structure 3 and the structure to be connected 4; wherein, the structure to be connected 4 includes a first shell 41, the electrical structure 3 is located in the installation cavity 411 of the first shell 41, and at least the inner surface of the first shell 41 is insulated from the electrical structure 3.

[0050] In this embodiment, the fixed connection assembly is used to achieve the relative position fixation of multiple components in a set direction, such as the Z-axis direction in the figure. The first shell 41 has an installation cavity 411, and the top of the installation cavity 411 is provided with an open opening 412. The second shell 5 described later is covered at the open opening 412. The first shell 41 and the second shell 5 together form a relatively complete shell structure and protect the electrical structure 3. The specific protection level can be determined according to actual needs.

[0051] In this embodiment, the first shell 41 and the second shell 5 are both configured as insulating shells, that is, both are made of insulating materials such as plastic, so as to achieve insulation between the first shell 41 and the electrical structure 3 .

[0052] However, it should be understood that it is not limited to this. For example, on the basis of satisfying the corresponding "safety distance", an insulating spacer can be set between the setting plate 414 of the first shell 41 and the electrical structure 3. The insulating spacer can be understood with reference to the support column 413 described later, and will not be described in detail here. Among them, "safety distance" (also called safety spacing, electrical clearance or creepage distance) refers to the minimum electrical insulation distance specified to prevent electrical accidents, such as electric shock, arc discharge, short circuit and fire caused by electric sparks.

[0053] In the limiting structure 1, the limiting member 12 used to connect with the first connecting member 2 is arranged in the accommodating cavity 111 of the insulating seat 11. The limiting member 12 is in contact with the electrical structure 3 through the insulating seat 11. The insulating seat 11 can achieve insulation between the limiting member 12 and the electrical structure 3. This setting method is conducive to using the insulating seat 11 to meet the "safety distance" requirement between the limiting member 12 and the electrical structure 3.

[0054] After the first connecting member 2 is respectively connected to the limiting member 12 and the structure to be connected 4, the relative positions of the electrical structure 3 and the structure to be connected 4 can be fixed in the up and down directions to avoid the electrical structure 3 and the structure to be connected 4 being separated from each other in the up and down directions. On this basis, the manner in which the insulating seat 11 is arranged at the second hole 31 on the electrical structure 3 is not limited, and an exemplary explanation will be given later.

[0055] In this way, the limiting member 12 is accommodated in the accommodating cavity 111 of the insulating seat 11, and the insulating seat 11 is formed with a first hole 112 connected to the accommodating cavity 111, so that when the insulating seat 11 of the limiting structure 1 is set at the second hole 31 on the electrical structure 3, and the electrical structure 3 is placed at a suitable position inside the first shell 41 of the structure to be connected 4, the first hole 112 of the insulating seat 11, the second hole 31 on the electrical structure 3 and the third hole 43 on the structure to be connected 4 can be made to correspond to each other in a set direction, such as the up and down direction, and the first connecting member 2 is set to be inserted into the third hole 43, the second hole 31 and the first hole 112, and one end of the first connecting member 2 is connected to the limiting member 12, and the other end is connected to the structure to be connected 4 at the third hole 43, so that By fixing the connecting assembly, the relative positions of the electrical structure 3 and the structure to be connected 4 in the up and down directions can be fixed; and, the limiting member 12 does not directly contact the electrical structure 3, but is connected to the electrical structure 3 through the insulating seat 11, so that the insulation between the limiting member 12 and the electrical structure 3 can be achieved, and the direct contact between the electrical structure 3 and the limiting member 12 to form a conductive path can be avoided. The setting of the insulating seat 11 can meet the requirement of the "safety distance" between the electrical structure 3 and the limiting member 12; at the same time, since at least the inner surface of the first shell 41 is insulated from the electrical structure 3, for example, the first shell 41 is set as an insulating shell, it can be avoided that the electrical structure 3 forms a conductive path through the structure to be connected 4 (for example, the first shell 41), the first connecting member 2 and the limiting member 12. In general, the utility model can realize reliable connection between the electrical structure 3 and the structure to be connected 4. For example, the first connector 2 and the limiter 12 can be made of metal materials. On the basis of fixing the electrical structure 3 inside the first shell 41, the insulation of the electrical structure 3 can be ensured, that is, the insulation of the electrical structure 3 and the fixed connection structure can be ensured to avoid the formation of a leakage conductive path of the electrical structure 3 due to the setting of the fixed connection structure, thereby reducing safety hazards. In particular, when the grounding of the equipment fails or even has no grounding, the insulation of the electrical structure 3 can be ensured to a certain extent, and its conductive safety can be improved. The utility model can take into account the installation reliability requirements and conductive safety requirements of the electrical structure 3, and has a simple structure and strong practicality.

[0056] like Figure 4As shown, in an optional scheme of the limiting structure 1, the limiting member 12 is provided with a fourth hole 121. When the limiting member 12 is accommodated in the accommodating cavity 111, the fourth hole 121 corresponds to the position of the first hole 112, and the first connecting member 2 is used to connect with the limiting member 12 at the fourth hole 121.

[0057] Specifically, when the stopper 12 is accommodated in the accommodating cavity 111, the fourth hole 121 corresponds to the first hole 112 in the vertical direction, and the lower surface of the stopper 12 abuts against the inner bottom surface of the accommodating cavity 111. For example, the lower part of the accommodating cavity 111 is connected to form the first hole 112, but it should be understood that the first hole 112 can be set to penetrate the insulating seat 11 in the vertical direction, that is, the upper part of the accommodating cavity 111 is also connected to form the first hole 112.

[0058] Thus, the upper end of the first connecting member 2 at least partially extends into the fourth hole 121 and is connected to the stopper 12. The specific method of connecting the first connecting member 2 and the stopper 12 is not limited, and an exemplary description will be given later. When the two are connected, the stopper 12 can limit the downward movement of the first connecting member 2.

[0059] like Figure 4 As shown, in a further optional solution of the limiting structure 1, the first connecting member 2 is a threaded connecting member, which passes through the third hole 43, the second hole 31 and the first hole 112 from the outside to the inside of the first shell 41 and is threadedly connected to the fourth hole 121.

[0060] Specifically, the threaded connector is a screw, the large end of the screw abuts against the structure to be connected 4 at the lower end surface of the third hole 43, and the small end is threadedly connected to the stopper 12 at the fourth hole 121. At this time, the stopper 12 is a nut.

[0061] In this way, the limiting member 12 and the threaded connection member can respectively adopt existing related nuts and screws, which are easy to purchase and low in cost.

[0062] Different from the above-mentioned technical solution in which the first connecting member 2 is a threaded connecting member, in a further optional solution of the limiting structure 1, the first connecting member 2 is a clamping connecting member, which includes a clamping column and clamping blocks located at both ends of the clamping column, and the clamping column is inserted into the third hole 43, the second hole 31, the first hole 112 and the fourth hole 121, and the clamping blocks at both ends of the clamping column are respectively abutted against the end faces of the third hole 43 and the fourth hole 121 that are away from each other.

[0063] Specifically, the block at the upper end of the clamping column abuts against the upper end surface of the fourth hole 121, and the block at the lower end of the clamping column abuts against the lower end surface of the third hole 43, so that the relative position of the electrical structure 3 and the structure to be connected 4 in the up and down directions can be fixed by using the clamping connector, which is not shown in this scheme and will not be described in detail later.

[0064] It should be understood that in this case, the limit member 12 is not limited to being provided with the fourth hole 121. For example, the limit member 12 can be set as a limit block, and the projection of the limit block in the up and down direction is located on one side of the projection of the first hole 112 in the up and down direction, and the two projections do not overlap with each other.

[0065] Optionally, the limiting member 12 is detachably connected to the insulating seat 11 in a limiting manner.

[0066] Specifically, when the limit member 12 is accommodated in the accommodating cavity 111, the lower surface of the limit member 12 abuts against the inner bottom surface of the accommodating cavity 111 located below, and the insulating seat 11 can limit the separation of the limit member 12 from the insulating seat 11 to a certain extent, for example, at least limit the upward movement of the limit member 12 and the separation from the insulating seat 11. The specific implementation scheme will be exemplified later.

[0067] In this way, the limit member 12 and the insulating seat 11 are set to be detachably limited and connected, and one of them can be replaced when necessary. For example, the insulating seat 11 is made of plastic and when it is aged and cracked, the insulating seat 11 can be replaced. The limit member 12 is made of a nut and when it is disassembled and assembled with the first connecting member 2 many times, causing the thread failure, the nut can be replaced, which facilitates the modular design and low-cost application of the limit structure 1.

[0068] like Figure 8 As shown, optionally, a first clamping connection structure 6 is provided between the limiting member 12 and the insulating seat 11 , and when the limiting member 12 is accommodated in the accommodating cavity 111 , the limiting member 12 and the insulating seat 11 are connected via the first clamping connection structure 6 .

[0069] Specifically, the first clamping connection structure 6 includes a first clamping portion 61 and a second clamping portion 62, which are respectively formed on the limiting member 12 and the insulating seat 11. When the limiting member 12 is accommodated in the accommodating cavity 111, the first clamping portion 61 and the second clamping portion 62 are clamped to prevent the limiting member 12 from falling off from the accommodating cavity 111.

[0070] In this way, the first clamping connection structure 6 can avoid relative displacement between the limiting member 12 and the insulating seat 11, thereby ensuring the stability of the connection between the two.

[0071] like Figure 7 As shown, in a further optional scheme of the limiting structure 1, the insulating seat 11 is also provided with a limiting guide groove 113, and the extension direction of the limiting guide groove 113 is set at a preset angle with the hole depth direction of the first hole 112, one end of the limiting guide groove 113 is connected to the first hole 112 to form an accommodating cavity 111, and the limiting member 12 and the limiting guide groove 113 are movably connected in the extension direction of the limiting guide groove 113.

[0072] Specifically, the extension direction of the limiting guide groove 113 can be perpendicular to the up-down direction, for example, extending along the Y-axis direction, and the setting of the limiting guide groove 113 only allows the limiting member 12 to move along the extension direction of the limiting guide groove 113, and does not allow movement in other directions such as rotation. Thus, the possibility of the limiting member 12 falling off the insulating seat 11 can be reduced.

[0073] Furthermore, the end of the limiting guide groove 113 away from the first hole 112 (that is, the end where the opening of the limiting guide groove 113 is located) can be the outer end of the limiting guide groove 113, for example, the right end in the figure, and the distance from this end to the right side wall of the first shell 41 can be less than a preset value, thereby preventing the limiting member 12 from falling from there.

[0074] Furthermore, a damping sliding connection may be provided between the limiting guide groove 113 and the limiting member 12 to prevent the limiting member 12 from easily leaving the accommodating cavity 111 .

[0075] like Figures 2 to 5 As shown, it should be understood that, optionally, a first clamping connection structure 6 can be provided between the limit member 12 and the insulating seat 11, and the insulating seat 11 can also be provided with a limit guide groove 113. At this time, the first clamping portion 61 and the second clamping portion 62 are formed on the groove walls of the limit member 12 and the limit guide groove 113, respectively.

[0076] Specifically, when the limiting member 12 slides from the limiting guide groove 113 to the accommodating cavity 111, the second clamping portion 62 is located on the movement path of the first clamping portion 61. When the limiting member 12 is located in the accommodating cavity 111, the second clamping portion 62 is clamped and connected to the first clamping portion 61. The second clamping portion 62 restricts the limiting member 12 from sliding outward from the limiting guide groove 113 and disengaging from the accommodating cavity 111.

[0077] In this case, the installation reliability of the stopper 12 on the insulating seat 11 is high, and the insulating seat 11 can form good insulation around the outer periphery of the stopper 12, meeting the corresponding "safety distance" requirement. This example will be used to further explain the present invention.

[0078] like Figure 2 , Figure 3 and Figure 5 As shown, in a further optional solution of the first snap-fit ​​connection structure 6 , the first groove wall of the limiting guide groove 113 is provided with a notch portion 114 , and the notch portion 114 forms an elastic column 63 on the remaining portion of the first groove wall, and the second snap-fit ​​portion 62 is formed at the free end of the elastic column 63 .

[0079] Specifically, the fixed end of the elastic column 63 is fixed relative to the main body of the insulating seat 11, and the two ends of the elastic column 63 can be relatively displaced to a certain extent when subjected to force.

[0080] In this way, the elastic property of the elastic column 63 can be utilized to meet the relative displacement requirement when the second clamping portion 62 and the first clamping portion 61 are clamped or released.

[0081] like Figure 2 , Figure 3 and Figure 5 As shown, further, the extension direction of the elastic column 63 is consistent with the extension direction of the limiting guide groove 113, and the end of the elastic column 63 close to the first hole 112 is a free end.

[0082] Exemplarily, the end surface of the elastic column 63 close to the first hole 112 forms the second clamping portion 62, and correspondingly, the end surface of the limiter 12 close to the elastic column 63 in the extension direction of the limiter guide groove 113 forms the first clamping portion 61. When the limiter 12 slides from right to left, the limiter 12 squeezes the elastic column 63, so that the free end of the elastic column 63 is offset. When the limiter 12 moves to the accommodating cavity 111, the limiter 12 separates from the elastic column 63, and the free end of the elastic column 63 is reset, so that the second clamping portion 62 is located on the movement path of the first clamping portion 61, limiting the limiter 12 from moving to the right and disengaging from the accommodating cavity 111. Of course, in other embodiments, the elastic column 63 can extend in other directions, such as in the Z direction or the X direction, which will not be described in detail here.

[0083] like Figure 5 As shown, further, in the hole depth direction of the third hole 43 , the first groove wall is the groove wall of the limiting guide groove 113 away from the third hole 43 , and the notch portion 114 is arranged through the first groove wall in a direction away from the third hole 43 .

[0084] Specifically, Figure 2 , Figure 3 Figure 5 As shown, the first groove wall is the upper groove wall of the limiting guide groove 113, and its notch portion 114 forms an observation window that penetrates the limiting member 12 and the elastic column 63 from above, and can also reduce the weight of the insulating seat 11, with a simple structure and low cost.

[0085] In addition, in some cases, an operating part can be provided on the elastic column 63, and the operating part is used to apply force to release the first clamping connection structure 6. The operating part can be provided at the notch portion 114 for easy operation. For example, the operating part extends upward and protrudes from the upper end surface of the insulating seat 11. It will not be described in detail here.

[0086] It should be understood that, different from the above-mentioned technical solution in which the limiting member 12 and the insulating seat 11 are detachably connected to each other, in an optional embodiment of the present utility model, the limiting member 12 is connected to the insulating seat 11 to form an integrated structure.

[0087] Specifically, the limiting member 12 is a metal member, and the one-piece structure is obtained by integral injection molding with the limiting member 12 as an insert, that is, the limiting structure 1 is an one-piece structure.

[0088] In the above embodiment, optionally, in the depth direction of the third hole 43 , the insulating seat 11 is at least partially located on a side of the electrical structure 3 away from the third hole 43 , and abuts against the electrical structure 3 on the side of the electrical structure 3 away from the third hole 43 .

[0089] like Figure 2 As shown, the electrical structure 3 includes a circuit board, and in the hole depth direction of the third hole 43, the insulating seat 11 is at least partially located on the upper side of the circuit board, so that the circuit board can limit the downward movement of the insulating seat 11, and then when the first connecting member 2 is respectively connected to the limiting member 12 and the structure to be connected 4, such as the first shell 41, the first connecting member 2 provides downward pressure to the circuit board through the limiting member 12 and the insulating seat 11, so that the circuit board is pressed tightly against the first shell 41.

[0090] like Figure 2 As shown, in the above embodiment, optionally, a guide post 115 is provided on the insulating seat 11 , and the guide post 115 is inserted into at least the second hole 31 of the second hole 31 and the third hole 43 , and a first hole 112 is formed on the guide post 115 .

[0091] At this time, the first hole 112 is arranged to penetrate the guide column 115 in the up-down direction and communicate with the accommodating cavity 111. Fig. 9 As shown, the guide post 115 can be inserted only into the second hole 31, or, as shown in Figure 2 As shown, the guide post 115 can be inserted into the second hole 31 and the third hole 43 .

[0092] In this way, the relative positioning of the insulating seat 11 and the electrical structure 3 can be achieved through the insertion of the guide column 115 and the second hole 31, that is, the relative positioning of the limiting structure 1 and the electrical structure 3 can be achieved, which is convenient for the subsequent connection operation of the first connecting member 2.

[0093] like Figure 4 As shown, further, when the insulating seat 11 is provided with a guide column 115, the cross-sectional shape of the partial column section of the guide column 115 corresponding to the second hole 31 and the cross-sectional shape of the second hole 31 are matched non-centrosymmetrical structures.

[0094] like Figure 2 , Figure 4 and Figure 5 As shown, a first protrusion 1151 is provided on a portion of the guide column 115 corresponding to the second hole 31. The provision of the first protrusion 1151 enables the above cross-sectional shape to constitute a non-centrally symmetrical structure.

[0095] In this way, on the one hand, the guide post 115 can only be inserted into the second hole 31 in a preset position, and on the other hand, relative rotation between the insulating seat 11 and the electrical structure 3 in the circumferential direction of the second hole 31 can be avoided.

[0096] like Fig.11 As shown, further, a guide column 115 is provided on the insulating seat 11, and when the guide column 115 is also inserted into the third hole 43, the cross-sectional shape of the partial column section of the guide column 115 corresponding to the third hole 43 and the cross-sectional shape of the third hole 43 are matching non-centrally symmetrical structures.

[0097] In this way, on the one hand, the guide column 115 can only be inserted into the third hole 43 in a preset position, and on the other hand, relative rotation between the insulating seat 11 and the electrical structure 3 in the circumferential direction of the third hole 43 can be avoided.

[0098] like Fig.11 As shown, it shows that the cross-sectional shape of the guide column 115 at various locations is a non-center-symmetrical structure, thereby preventing the insulating seat 11 and the electrical structure 3 from rotating relative to each other in the circumferential direction of the second hole 31, and also preventing the insulating seat 11 and the electrical structure 3 from rotating relative to each other in the circumferential direction of the third hole 43.

[0099] like Fig.10 As shown, optionally, the insulating seat 11 is connected to the electrical structure 3 via a second clamping connection structure 7 to limit the movement of the insulating seat 11 relative to the electrical structure 3 in at least one direction.

[0100] The second clamping connection structure 7 may include a third clamping portion 71 and a fourth clamping portion, which are respectively arranged on the insulating seat 11 and the electrical structure 3. When the insulating seat 11 is arranged at the second hole 31, the third clamping portion 71 and the fourth clamping portion are clamped and connected.

[0101] like Figure 4 As shown, further, when a guide post 115 is provided on the insulating seat 11 and the insulating seat 11 is connected to the electrical structure 3 via the second clamping connection structure 7 , the third clamping portion 71 is located on the guide post 115 .

[0102] like Figure 3 and Figure 4 As shown, exemplarily, the third clamping portion 71 can be set as a retractable structure such as an elastic clamping bead, and the fourth clamping portion is a clamping groove set on the inner wall of the second hole 31. When the elastic clamping bead moves to the clamping groove, the elastic clamping bead enters the clamping groove to achieve a clamping connection between the two. At this time, the insulating seat 11 can be restricted from moving in the up and down directions relative to the electrical structure 3, and the insulating seat 11 can also be restricted from moving in the circumferential direction of the second hole 31 relative to the electrical structure 3.

[0103] like Figure 1 and Figure 2As shown, in the above embodiment, optionally, the structure to be connected 4 further includes a heat sink 42 , and the heat sink 42 is located outside the first shell 41 .

[0104] Specifically, the radiator 42 includes a base 421 and fins 422 arranged below the base 421. The base 421 is in contact with the setting plate 414 of the first shell 41. A support column 413 for supporting the electrical structure 3 can also be formed on the setting plate 414. The third hole 43 is formed in the base 421, the setting plate 414 and the support column 413.

[0105] In this way, the fixed connection assembly can realize the connection between the heat sink 42, the first shell 41 and the electrical structure 3, which can reduce the number and complexity of the connection structures between multiple components. In addition, in some cases, the heat sink 42, the first shell 41 and the electrical structure 3 can be connected from the outside of the heat dissipation structure, and the heat sink 42 is usually set on the back of the shell structure of the entire electronic device, that is, setting the plate 414 as the back plate of the electronic device (the back plate is usually the plate on the side away from the user), which can avoid the first connector 2 from being exposed, and improve the neatness and aesthetics of the front of the electronic device.

[0106] Optionally, the first shell 41 also includes an open port 412, and the second shell 5 is covered at the open port 412. The first shell 41 and the second shell 5 are connected via a third snap-fit ​​connection structure and at least one of the second connecting members. The second shell 5 is provided with a fifth hole for connecting to the second connecting member, and the fifth hole is any one of a through hole and a blind hole.

[0107] The second connector can be, for example, a screw. When the screw passes through the first housing 41 from the outside and is connected to the second housing 5, for example, connected to a blind hole, the second connector can be prevented from being exposed to the second housing 5. The first connector 2 and the second connector can also be connected on the side where the heat sink 42 is located, which facilitates the assembly of the entire electronic device and improves the assembly efficiency of the electronic device. For example, during assembly, the opening of the second housing 5 can be directed upward, the electrical structure 3 engaged with the limiting structure 1 can be placed in the second housing 5, and then the first housing 41 can be placed. Finally, the first connector 2 and the second connector are connected to complete the assembly of the electronic device. The installation orientation of the electronic device after assembly is not limited.

[0108] like Figures 1 to 6As shown, another embodiment of the utility model provides an electronic device, which includes an electrical structure 3, a structure to be connected 4 and a fixed connection component as described in the above embodiment, wherein the insulating seat 11 of the limiting structure 1 of the fixed connection component is used to be set at the second hole 31 on the electrical structure 3, and the first connecting member 2 of the fixed connection component is used to pass through the third hole 43, the second hole 31 and the first hole 112 of the insulating seat 11 on the structure to be connected 4, one end of the first connecting member 2 is connected to the limiting member 12 of the limiting structure 1, and the other end is connected to the structure to be connected 4 at the third hole 43, so as to achieve relative position fixation of the electrical structure 3 and the structure to be connected 4; wherein the structure to be connected 4 includes a first shell 41, the electrical structure 3 is located in the installation cavity 411 of the first shell 41, and at least the inner surface of the first shell 41 is insulated from the electrical structure 3.

[0109] The contents related to the electronic device, such as the second connector and the second housing 5, are all described in the above embodiments and will not be repeated here. The electronic device may be a power optimizer, an inverter, etc., which is not a limitation.

[0110] Another embodiment of the present utility model provides a power system, which includes the fixed connection assembly of the above embodiment, or includes the electronic device of another above embodiment.

[0111] The power system may be, for example, an inverter system, or a photovoltaic system. Both the power system and the electronic device have all the beneficial effects of the fixed connection assembly, which will not be described in detail here.

[0112] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A fixed connection assembly, characterized in that: The invention comprises a limiting structure (1) and a first connecting member (2); the limiting structure (1) comprises an insulating seat (11) and a limiting member (12); the insulating seat (11) is formed with a receiving cavity (111) and a first hole (112) communicating with the receiving cavity (111); The limiting member (12) is accommodated in the accommodating cavity (111); the insulating seat (11) is used to be arranged at the second hole (31) on the electrical structure (3); the first connecting member (2) is used to pass through the third hole (43), the second hole (31) and the first hole (112) on the structure to be connected (4); one end of the first connecting member (2) is connected to the limiting member (12), and the other end is connected to the structure to be connected (4) at the third hole (43), so as to achieve relative position fixation of the electrical structure (3) and the structure to be connected (4); The structure to be connected (4) comprises a first shell (41), the electrical structure (3) is located in an installation cavity (411) of the first shell (41), and at least an inner surface of the first shell (41) is insulated from the electrical structure (3).

2. The fixed connection assembly according to claim 1, characterized in that: The limiting member (12) is provided with a fourth hole (121); when the limiting member (12) is accommodated in the accommodating cavity (111), the fourth hole (121) corresponds to the position of the first hole (112); and the first connecting member (2) is used to be connected to the limiting member (12) at the fourth hole (121).

3. The fixed connection assembly according to claim 2, characterized in that: The first connecting member (2) is a threaded connecting member, which is inserted from the outside of the first shell (41) to the inside through the third hole (43), the second hole (31) and the first hole (112), and is threadedly connected to the fourth hole (121); Alternatively, the first connecting member (2) is a snap-fit ​​connecting member, comprising a snap-fitting column and snap-fitting blocks located at both ends of the snap-fitting column, the snap-fitting column is inserted into the third hole (43), the second hole (31), the first hole (112) and the fourth hole (121), and the snap-fitting blocks at both ends of the snap-fitting column are respectively in contact with end surfaces of the third hole (43) and the fourth hole (121) that are away from each other.

4. The fixed connection assembly according to claim 2, characterized in that: The limiting member (12) is detachably connected to the insulating seat (11).

5. The fixed connection assembly according to claim 4, characterized in that: A first clamping connection structure (6) is provided between the limiting member (12) and the insulating seat (11); when the limiting member (12) is accommodated in the accommodating cavity (111), the limiting member (12) and the insulating seat (11) are connected via the first clamping connection structure (6); And / or, the insulating seat (11) is further provided with a limiting guide groove (113), the extension direction of the limiting guide groove (113) is arranged at a preset angle with the hole depth direction of the first hole (112), one end of the limiting guide groove (113) is connected to the first hole (112) to form the accommodating cavity (111), and the limiting member (12) and the limiting guide groove (113) are movably connected in the extension direction of the limiting guide groove (113).

6. The fixed connection assembly according to claim 5, characterized in that: The first clamping connection structure (6) comprises a first clamping portion (61) and a second clamping portion (62), wherein the first clamping portion (61) and the second clamping portion (62) are respectively formed on the limiting member (12) and the insulating seat (11); Wherein, when the first clamping connection structure (6) is provided between the limiting member (12) and the insulating seat (11), and the insulating seat (11) is also provided with the limiting guide groove (113), the second clamping portion (62) is formed on the groove wall of the limiting guide groove (113).

7. The fixed connection assembly according to claim 6, characterized in that: The first groove wall of the limiting guide groove (113) is provided with a notch portion (114), and the notch portion (114) enables the remaining portion of the first groove wall to form an elastic column (63), and the second clamping portion (62) is formed at the free end of the elastic column (63).

8. The fixed connection assembly according to claim 7, characterized in that: The extension direction of the elastic column (63) is consistent with the extension direction of the limiting guide groove (113), and the end of the elastic column (63) close to the first hole (112) is a free end; And / or, in the hole depth direction of the third hole (43), the first groove wall is the groove wall of the limiting guide groove (113) away from the third hole (43), and the notch portion (114) is arranged to penetrate the first groove wall in a direction away from the third hole (43).

9. The fixed connection assembly according to claim 1, characterized in that: The limiting member (12) is connected to the insulating seat (11) to form an integrated structure.

10. The fixed connection assembly according to any one of claims 1 to 9, characterized in that: In the hole depth direction of the third hole (43), the insulating seat (11) is at least partially located on a side of the electrical structure (3) away from the third hole (43), and abuts against the electrical structure (3) on a side of the electrical structure (3) away from the third hole (43); And / or, the insulating seat (11) is provided with a guide post (115), the guide post (115) is inserted into at least the second hole (31) in the second hole (31) and the third hole (43), and the first hole (112) is formed on the guide post (115); And / or, the insulating seat (11) is connected to the electrical structure (3) via a second snap-connecting structure (7) to limit the movement of the insulating seat (11) relative to the electrical structure (3) in at least one direction.

11. The fixed connection assembly according to claim 10, characterized in that: The guide column (115) is arranged on the insulating seat (11), and the cross-sectional shape of the partial column section of the guide column (115) corresponding to the second hole (31) and the cross-sectional shape of the second hole (31) are matched with a non-centrosymmetric structure; And / or, the guide column (115) is provided on the insulating seat (11), and when the guide column (115) is also inserted into the third hole (43), the cross-sectional shape of the partial column section of the guide column (115) corresponding to the third hole (43) and the cross-sectional shape of the third hole (43) are a matching non-centrosymmetrical structure; And / or, when the guide column (115) is provided on the insulating seat (11) and the insulating seat (11) is connected to the electrical structure (3) via a second snap-fit ​​connection structure (7), the second snap-fit ​​connection structure (7) comprises a third snap-fit ​​portion (71) provided on the insulating seat (11), and the third snap-fit ​​portion (71) is located on the guide column (115).

12. The fixed connection assembly according to any one of claims 1 to 9, characterized in that: The structure to be connected (4) further comprises a heat sink (42), wherein the heat sink (42) is located outside the first shell (41); and / or, the electrical structure (3) comprises a circuit board; And / or, the first shell (41) is made of insulating material; And / or, the first shell (41) further comprises an open opening (412), the second shell (5) is covered on the open opening (412), the first shell (41) and the second shell (5) are connected via a third snap-fit ​​connection structure and at least one of the second connecting members, the second shell (5) is provided with a fifth hole for connecting with the second connecting member, and the fifth hole is any one of a through hole and a blind hole.

13. An electronic device, characterized in that: The invention comprises an electrical structure (3), a structure to be connected (4) and a fixed connection assembly as claimed in any one of claims 1 to 12, wherein the insulating seat (11) of the limiting structure (1) of the fixed connection assembly is used to be arranged at the second hole (31) on the electrical structure (3), and the first connecting member (2) of the fixed connection assembly is used to pass through the third hole (43) on the structure to be connected (4), the second hole (31) and the first hole (112) of the insulating seat (11), one end of the first connecting member (2) is connected to the limiting member (12) of the limiting structure (1), and the other end is connected to the structure to be connected (4) at the third hole (43), so as to achieve the relative position fixation of the electrical structure (3) and the structure to be connected (4); wherein the structure to be connected (4) comprises a first shell (41), the electrical structure (3) is located in the installation cavity (411) of the first shell (41), and at least the inner surface of the first shell (41) is insulated from the electrical structure (3).

14. A power system, characterized in that: It comprises the fixed connection component as described in any one of claims 1 to 12, or it comprises the electronic device as described in claim 13.

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