Electric connection unit and self-correcting high-capacity electric connection structure formed by same

Abstract

The invention provides an electric connection unit and a self-correcting large-capacity electric connection structure formed by the electric connection unit, the electric connection unit comprises a wiring end, an electric connection assembly and a connection bar, the electric connection assembly comprises an upper soft conducting strip, a lower soft conducting strip, an elastic piece, a correcting guide rod unit, a limiting plate unit, a first guide frame and a second guide frame, the correction guide rod upwards penetrates through the upper soft conducting strip, the limiting plate unit and the first guide frame in sequence, and the correction guide rod downwards penetrates through the lower soft conducting strip, the elastic piece and the second guide frame in sequence; wherein the correction guide rod forms a contact opening between the upper soft conducting strip and the lower soft conducting strip, and the width of the contact opening is guided and adjusted between the first guide frame and the second guide frame through the up-and-down movement of the correction guide rod, so that the contact opening is corrected and connected with the connecting bar to recover good contact. According to the invention, the connection position is automatically corrected through the contact opening and the connection bar, and a good contact position is returned to ensure good contact of connection.

Description

Technical Field

[0001] The invention relates to a low-voltage power distribution device, in particular to an electric connection unit and a self-correcting large-capacity electric connection structure composed of the electric connection unit. Background Art

[0002] In low-voltage power distribution equipment, electrical connection structures are often used to achieve rapid connection and deployment of components such as circuit breakers and distribution lines, or rapid disconnection and isolation from distribution lines during maintenance. At present, the electrical connection structure technology mainly uses conductive materials to make conductive components, which serve as a connecting bridge between distribution components and distribution lines. The elastic parts provide clamping force to the connection ends of the conductive components and the distribution components, so that the distribution components are connected to the distribution lines through the conductive components. With the gradual increase in the current capacity of the access components, on the one hand, the conductive cross-sectional area of ​​the conductive components used in the electrical connection structure increases to ensure the current conduction capacity; on the other hand, the conductive components adopt the form of multiple branch loops, each branch loop carries a smaller current, thereby reducing the impact of poor contact caused by the harmful electromagnetic repulsion generated by the large current. The performance of the electrical connection structure focuses on the goodness of the contact. Under the same clamping force, the larger the effective contact area, the better the contact and the better the performance. In actual applications, due to the installation position deviation between the distribution components and the electrical connection structure, the effective contact area between the connection end of the distribution components and the conductive components of the electrical connection structure is often reduced, the contact quality is reduced, the contact resistance is increased, and the temperature rise of the electrical connection structure during long-term power-on operation will increase exponentially. This problem is particularly prominent in large-capacity distribution equipment, which can easily cause overheating and burning of the electrical connection link, seriously affecting the safety and reliability of the equipment. Summary of the invention

[0003] The present invention provides an electrical connection unit and a self-correcting large-capacity electrical connection structure formed by the unit, so as to solve the poor contact and potential safety hazards caused by the installation position deviation of large-current capacity power distribution equipment.

[0004] In order to achieve the above-mentioned purpose of the invention, the present invention provides an electrical connection unit, which includes a terminal, an electrical connection assembly and a connection bar, and is characterized in that:

[0005] The electrical connection assembly comprises upper and lower soft conductive sheets, an elastic member, a correction guide rod unit, a limit plate unit, a first guide frame and a second guide frame, wherein the correction guide rod passes through the upper soft conductive sheet, the limit plate unit and the first guide frame in sequence upward, and the correction guide rod passes through the lower soft conductive sheet, the elastic member and the second guide frame in sequence downward;

[0006] Among them, the correction guide rod forms a contact opening between the upper and lower soft conductive sheets, and the width of the contact opening is guided and adjusted between the first guide frame and the second guide frame by the up and down movement of the correction guide rod, so that the contact opening is corrected and connected to the connecting row to restore good contact.

[0007] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0008] The upper and lower soft conductive sheets include a connecting section composed of a plurality of contact sheets, and the contact sheets are fitted with the correction guide rod under the action of the elastic member; the contact sheets are separated by a split seam, and the contact sheets are provided with a plurality of guide rod holes for the correction guide rod to pass through; the upper and lower soft conductive sheets also include a wiring section arranged on a side opposite to the connecting section, and the wiring section is provided with a plurality of wiring holes;

[0009] Wherein, the connecting section and the wiring section are connected via an adjusting section, and a plurality of ventilation holes are provided on the adjusting section.

[0010] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0011] The material of the adjustment section includes a metal conductive material with a hardness range of 30HB to 180HB.

[0012] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0013] The correction guide rod unit comprises a plurality of correction guide rods, which are sequentially composed of a first guide end, a limit section, a mounting section, a first matching shoulder, a support section, a second matching shoulder, an elastic member mounting section and a second guide end;

[0014] Among them, the first guide end corresponds to the first guide hole, and the first guide end passes through the first guide hole; the size of the limiting section is larger than the limiting hole, and the limiting section passes through the through hole; the first matching shoulder matches the guide rod hole, and the first matching shoulder passes through the guide rod hole; a rectangular limiting shoulder is provided on the side of the support section close to the connecting section, and the width of the limiting shoulder is slightly smaller than the thickness of the connecting row; a trapezoidal opening shoulder is provided on the side of the support section close to the adjusting section, and the large end of the trapezoidal opening shoulder is close to the side of the connecting row, and the width of the large end of the trapezoidal opening shoulder is slightly smaller than the thickness of the connecting row; the second matching shoulder matches the guide rod hole, and the second matching shoulder passes through the guide rod hole; the second guide end matches the second guide hole, and the second guide end passes through the second guide hole; a pin hole is provided at the intersection of the second guide end and the elastic member mounting section, and the pin hole is coupled with the positioning section.

[0015] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0016] The limiting plate unit includes a plurality of combined limiting plates, wherein the limiting plates are L-shaped plates, and the horizontal portion of the L-shaped plates includes limiting holes and through holes that are interconnected.

[0017] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0018] The first guide frame includes a first guide portion, a fastening portion and a first mounting portion, and the first guide portion is arranged on a side close to the connection row, and the first guide portion is provided with a plurality of first guide holes, and the first guide holes correspond to the guide rod holes on the contact sheet; the first guide portion is provided with a plurality of first heat dissipation holes, and the first heat dissipation holes correspond to the ventilation holes on the contact sheet; the first guide frame includes a first mounting portion, and the first mounting portion is provided with a first mounting hole; the first guide portion and the first mounting portion are naturally transitioned through the first fastening portion, and the first fastening portion is provided with a first fastening hole.

[0019] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0020] The second guide frame includes a second guide portion, a second fastening portion and a second mounting portion, the second guide portion is provided with a plurality of second guide holes, and the second guide holes correspond to the guide rod holes on the contact sheet; the second guide portion is provided with a plurality of second heat dissipation holes, and the second heat dissipation holes correspond to the ventilation holes on the contact sheet; the second mounting portion is provided with a plurality of second mounting holes; and the second fastening portion is provided with a plurality of second fastening holes.

[0021] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0022] The side surface of the connecting section near the connecting row is provided with an oblique angle.

[0023] Preferably, the present invention further provides an electrical connection unit, characterized in that:

[0024] The adjusting section comprises a plurality of copper sheets with a thickness of 0.005 to 0.2 mm.

[0025] The present invention also provides a self-correcting large-capacity electrical connection structure, comprising the above-mentioned electrical connection unit and an insulating housing, characterized in that:

[0026] The electrical connection unit array is arranged on the insulating shell, and the wiring terminals pass through the insulating shell and are placed outside the insulating shell.

[0027] The application of the electrical connection unit of the present invention and the self-correcting large-capacity electrical connection structure formed therefrom solves the problems of unreliable contact, energy consumption, temperature rise, etc. caused by misaligned connection, weak clamping, and small contact area between the connection end of the distribution element and the conductive member of the electrical connection structure in the existing structure. It not only reduces the internal contact resistance, but also can bear the electric repulsion of large currents. The present invention has the characteristics of high reliability, low energy consumption, long life, and excellent temperature rise performance.

[0028] It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to preferred embodiments of the present disclosure, examples of which are shown in the accompanying drawings. Wherever possible, the same reference numerals will be used in all drawings to represent the same or similar parts. In addition, although the terms used in the present disclosure are selected from well-known and commonly used terms, some of the terms mentioned in the present disclosure may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description herein. In addition, it is required to understand the present disclosure not only by the actual terms used, but also by the meaning implied by each term.

[0030] The above and other objects, features and advantages of the present invention will become apparent to those skilled in the art from the detailed description of the present invention with reference to the accompanying drawings below.

[0031] Figure 1 It is a schematic assembly diagram of a self-correcting large-capacity electrical connection structure involved in the present invention;

[0032] Figure 2 is a schematic structural diagram of an electrical connection unit 200 involved in the present invention;

[0033] Figure 3 is an exploded structural diagram of the electrical connection unit 200 involved in the present invention;

[0034] Figure 4 It is a structural schematic diagram of a soft conductive sheet 301 provided in a preferred embodiment of a self-correcting large-capacity electrical connection structure involved in the present invention;

[0035] Figure 5 It is a structural schematic diagram of a connection bar 4 provided in a preferred embodiment of a self-correcting large-capacity electrical connection structure involved in the present invention;

[0036] Figure 6 It is a structural schematic diagram of a positioning pin 305 provided in a preferred embodiment of a self-correcting large-capacity electrical connection structure involved in the present invention;

[0037] Figure 7 1 is a schematic structural diagram of a limit plate 304 provided in a preferred embodiment of a self-correcting large-capacity electrical connection structure according to the present invention;

[0038] Figure 8 It is a partial cross-sectional assembly schematic diagram of a preferred embodiment of a self-correcting large-capacity electrical connection structure involved in the present invention;

[0039] Fig. 9 yes Figure 8 A partial cross-sectional enlarged schematic diagram of

[0040] Fig.10 2 is a schematic structural diagram of a first guide frame 306 of a preferred embodiment of a self-correcting large-capacity electrical connection structure according to the present invention;

[0041] Fig.11 It is a structural schematic diagram of a second guide frame 307 provided in a preferred embodiment of a self-correcting large-capacity electrical connection structure involved in the present invention.

[0042] Reference numerals

[0043] 100 - Insulation shell

[0044] 200 - Electrical connection unit

[0045] 2 - Terminals

[0046] 3 - Electrical connection components

[0047] 4 - Connecting row

[0048] 301 - soft conductive sheet

[0049] 3011 - Connection segment

[0050] 30111 - Guide bevel

[0051] 3012 - Wiring segment

[0052] 3013 - Adjustment section

[0053] 3014 - Guide rod hole

[0054] 3015 - Split seam

[0055] 3016 - Ventilation holes

[0056] 3017 - Wiring hole

[0057] 3018 - Contact piece

[0058] 302 - Elastic parts

[0059] 303 - Correction guide rod

[0060] 3031 - First guide end

[0061] 3032 - Limit section

[0062] 3033 - Installation section

[0063] 3034 - First matching shoulder

[0064] 3035 - Support section

[0065] 30351 - Limiting shoulder

[0066] 30352 - Open Shoulder

[0067] 3036 - Second matching shoulder

[0068] 3037 - Elastic part installation section

[0069] 3038 - Second guide end

[0070] 3039 - Pin hole

[0071] 304 - Limiting plate

[0072] 3041 - Horizontal

[0073] 3042 - Vertical

[0074] 30411 - Limit hole

[0075] 30412 - Via

[0076] 305 - Positioning pin

[0077] 3051 - Positioning segment

[0078] 306 - First guide frame

[0079] 3061 - First guide

[0080] 3062 - First fastening part

[0081] 3063 - First installation section

[0082] 3064 - First guide hole

[0083] 3065 - First cooling hole

[0084] 3066 - First fastening hole

[0085] 3067 - First mounting hole

[0086] 307 - Second guide frame

[0087] 3071 - Second guide

[0088] 3072 - Second fastening part

[0089] 3073 - Second installation part

[0090] 3074 - Second guide hole

[0091] 3075 - Second cooling hole

[0092] 3076 - Second fastening hole

[0093] 3077 - Second mounting hole

[0094] 308 - Contact opening

[0095] 401 - Contact section

[0096] 402 - Guide groove DETAILED DESCRIPTION

[0097] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0098] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0099] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0100] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0101] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0102] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0103] Figure 1 Shown is a schematic assembly diagram of a preferred embodiment of a self-correcting large-capacity electrical connection structure of the present invention.

[0104] According to the preferred embodiment, in a specific power distribution application, a number of electrical connection units 200 are arranged in an array in the insulating housing 100 in response to the needs of the power distribution components that the power distribution system contacts.

[0105] Figure 1 In the preferred embodiment shown, the power distribution element connected to the power distribution application is a three-phase structure, and a total of six groups of electrical connection units 200 are configured in a 2×3 array.

[0106] Figure 2 The schematic diagram of the composition of a single electrical connection unit 200 is further illustrated. Figure 3 is an exploded schematic diagram of the electrical connection unit 200 .

[0107] According to the figure, a single electrical connection unit 200 includes a terminal 2 , an electrical connection assembly 3 and a connection bar 4 . The terminal 2 and the connection bar 4 are connected as a whole through the electrical connection assembly 3 to form the electrical connection unit 200 .

[0108] The terminal 2 is connected to the electrical connection assembly 3, and the terminal 2 passes through the insulating housing 100. The terminal 2 is placed outside the insulating housing 100. The power distribution element is connected and disconnected with the electrical connection assembly 3 through the connection row 4 on it, so as to realize the connection and disconnection between the power distribution element and the power distribution network. Figure 1 Draw it in.

[0109] Among them, the connection row 4 and the electrical connection component 3 are pluggable. When the connection row 4 is inserted into the electrical connection component 3, the electrical connection component 3 is connected to the terminal 2 and the power distribution component is connected to the power distribution network; if the connection row 4 is pulled out from the electrical connection component 3 and separated from the terminal 2, the power distribution component is separated from the power distribution network, and alignment problems are likely to occur during this plug-in process.

[0110] from Figure 2 and 3The structure of the electrical connection assembly 3 can be further understood, including two upper and lower soft conductive sheets 301 of the same structure, an elastic member 302, four parallel correction guide rods 303, a limit plate 304, a positioning pin 305 and two guide frames 306 and 307. The correction guide rod 303 passes through the upper soft conductive sheet, the limit plate 304 and the first guide frame 306 in sequence upward, and the correction guide rod 303 passes through the lower soft conductive sheet, the elastic member 302 and the second guide frame 307 in sequence downward. The connection row 4 and the terminal 2 are respectively arranged on opposite sides of the electrical connection assembly 3.

[0111] Figure 4 The schematic diagram of the structure of the soft conductive sheet 301 serving as a bridge for connecting the connection bar 4 and the connection terminal 2 is shown.

[0112] The side of the soft conductive sheet 301 close to the connection row 4 is provided with a connection section 3011, which is composed of a plurality of mutually independent contact sheets 3018 arranged in pairs. The greater the current capacity, the greater the number of mutually independent contact sheets 3018. A dividing seam 3015 is provided between the two contact sheets 3018. Each contact sheet 3018 is provided with a through guide rod hole 3014 for passing the correction guide rod 303. The side of the soft conductive sheet 301 close to the wiring terminal 2 is provided with a wiring section 3012, and the wiring section 3012 is provided with a plurality of wiring holes 3017 for connection and fixing with the wiring terminal 2. Among them, the connection section 3011 naturally transitions to the wiring section 3012 through the middle soft adjustment section 3013, and the adjustment section 3013 is provided with a ventilation hole 3016.

[0113] The material of the adjustment section 3013 includes a metal conductive material with a hardness range of 30HB to 180HB. In this preferred embodiment, the adjustment section 3013 is formed by a plurality of copper sheets with a thickness of 0.005 to 0.2 mm.

[0114] Figure 5 It is a schematic structural diagram of the connection bar 4 in the self-correcting large-capacity electrical connection structure of the present invention.

[0115] The side close to the electrical connection component 3 is a contact section 401, and a plurality of guide grooves 402 are provided on the contact section 401. The spacing and size between the guide grooves 402 correspond to the correction guide rods 303 on the electrical connection component 3. When the connection row 4 is connected to the electrical connection component 3, the correction guide rods 303 are placed in the guide grooves 402.

[0116] Figure 6 Schematic diagram of the structure of the positioning pin 305.

[0117] The positioning pin 305 includes three parts, and the diameter of the positioning section 3051 in the middle is larger than that of the two sides, and the size of the positioning section 3051 matches the elastic member 302. The positioning section 3051 can be placed in the inner diameter of the elastic member 302 to limit the installation position of the elastic member 302.

[0118] Figure 7 Schematic diagram of the structure of the limiting plate 304 in the electrical connection assembly 3.

[0119] The limit plate 304 is an L-shaped plate formed by a natural vertical transition between a horizontal portion 3041 and a vertical portion 3042. The horizontal portion 3041 is provided with a limit hole 30411 and a through hole 30412. The limit hole 30411 and the through hole 30412 are both through holes, and the limit hole 30411 and the through hole 30412 are connected. The correction guide rod 303 can pass through the limit plate 304 through the hole 30412 and then be installed in the limit hole 30411.

[0120] exist Figure 3 In the electrical connection unit 200, a plurality of limit plates 304 are combined into a limit plate module according to the number of the correction guide rods 303.

[0121] Fig.10 A schematic structural diagram of the first guide frame 306 is given.

[0122] A first guide portion 3061 is provided on one side of the first guide frame 306 close to the connection row 4. The first guide portion 3061 is provided with a plurality of first guide holes 3064, which are through holes and correspond to the guide rod holes 3014 on the contact sheet 3018. The correction guide rod 303 can pass through the first guide hole 3064 and be guided and moved by the first guide frame 306.

[0123] A plurality of parallel first heat dissipation holes 3065 are also provided on the first guide portion 3061. The first heat dissipation holes 3065 are through holes. The first heat dissipation holes 3065 match and correspond with the ventilation holes 3016 on the contact sheet 3018 to form a heat dissipation channel that passes through from top to bottom. A first mounting portion 3063 is provided on the side of the first guide frame 306 close to the insulating housing 100. The first mounting portion 3063 is provided with a plurality of first mounting holes 3067. The electrical connection assembly 3 is installed and fixed in the insulating housing 100 through the first mounting holes 3067 on the first mounting portion 3063. The first guide portion 3061 and the first mounting portion 3063 are naturally transitioned through the first fastening portion 3062. The first fastening portion 3062 is provided with a first fastening hole 3066. The soft conductive sheet 301 and the connection row 4 are fastened to the first guide frame 306 through the first fastening hole 3066.

[0124] Fig.11 A schematic structural diagram of the second guide frame 307 is given.

[0125] The second guide frame 307 is provided with a second guide portion 3071 on one side close to the connection row 4. The second guide portion 3071 is provided with a plurality of second guide holes 3074, which are through holes. The second guide holes 3074 correspond to and match the guide rod holes 3014 on the contact sheet 3018. The correction guide rod 303 can pass through the second guide hole 3074 and be guided and moved by the second guide frame 307. The second guide portion 3071 is also provided with a plurality of parallel second heat dissipation holes 3075, which are through holes. The second heat dissipation holes 3075 match the ventilation holes 3016 on the contact sheet 3018 to form a heat dissipation channel that passes through from top to bottom. A second mounting portion 3073 is provided on one side of the second guide frame 307 close to the insulating housing 100. The second mounting portion 3073 and the second guide portion 3071 are naturally transitioned. The second mounting portion 3073 is provided with a plurality of second mounting holes 3077. The electrical connection assembly 3 is installed and fixed in the insulating housing 100 through the second mounting holes 3077 on the second mounting portion 3073. The second mounting portion 3073 is naturally transitioned upward to a second fastening portion 3072. The second fastening portion 3072 is provided with a second fastening hole 3076. The soft conductive sheet 301 and the connecting row 4 are fastened to the second guide frame 307 through the second fastening holes 3076.

[0126] Figure 8 It is a partial cross-sectional assembly schematic diagram of a preferred embodiment of a self-correcting large-capacity electrical connection structure involved in the present invention; Fig. 9 yes Figure 8 A partial enlarged schematic diagram of the cross-section; it can be understood from the two figures that the correction guide rod 303 is composed of a first guide end 3031, a limiting section 3032, an installation section 3033, a first matching shoulder 3034, a support section 3035, a second matching shoulder 3036, an elastic member installation section 3037, and a second guide end 3038 with a natural transition.

[0127] The first guide end 3031 matches the first guide hole 3064, and the size of the first guide end 3031 is smaller than the first guide hole 3064, and the first guide end 3031 can pass through the first guide hole 3064. The first guide end 3031 can pass through the first guide frame 306 through the first guide hole 3064, and be guided and moved by the first guide frame 306. The size of the limiting section 3032 is larger than the limiting hole 30411, and the size of the limiting section 3032 is smaller than the through hole 30412, and the limiting section 3032 can pass through the through hole 30412, and the installation limit is in the limiting hole 30411. The first matching shoulder 3034 matches the guide rod hole 3014, and the size of the first matching shoulder 3034 is smaller than the guide rod hole 3014, and the first matching shoulder 3034 can pass through the guide rod hole 3014. A rectangular limiting shoulder 30351 is provided on one side of the support section 3035 close to the connecting section 3011, and the width of the limiting shoulder 30351 is slightly smaller than the thickness of the connecting row 4. A trapezoidal opening shoulder 30352 is provided on one side of the support section 3035 close to the adjusting section 3013, and the large end of the trapezoidal opening shoulder 30352 is close to one side of the connecting row 4, and the width of the large end of the trapezoidal opening shoulder 30352 is slightly smaller than the thickness of the connecting row 4. The second matching shoulder 3036 matches the guide rod hole 3014, and the size of the second matching shoulder 3036 is smaller than the guide rod hole 3014, and the second matching shoulder 3036 can pass through the guide rod hole 3014. The second guide end 3038 matches the second guide hole 3074, and the size of the second guide end 3038 is smaller than the second guide hole 3074, and the second guide end 3038 can pass through the second guide hole 3074. The second guide end 3038 can pass through the second guide hole 3074 and penetrate the second guide frame 307, and be guided and moved by the second guide frame 307. A pin hole 3039 is provided at the intersection of the second guide end 3038 and the elastic member installation section 3037, and the pin hole 3039 is coupled with the positioning section 3051. The positioning pin 305 passes through the pin hole 3039. The elastic member 302 is installed through the elastic member installation section 3037, one end of the elastic member 302 contacts the connecting section 3011 of the soft conductive sheet 301, and the other end contacts the positioning pin 305 passing through the pin hole 3039, and the positioning section 3051 on the positioning pin 305 is placed on the inner circle of the elastic member 302 to compress and limit the elastic member 302.

[0128] The contact piece 3018 is fitted with the correction guide rod 303 under the force of the elastic member 302, and the two contact pieces 3018 are fitted on the limit shoulder 30351 and the opening shoulder 30352 under the force of the elastic member 302, so that a contact opening 308 is formed between the two contact pieces 3018, and the contact opening 308 between the contact pieces 3018 can be guided and moved between the first guide frame 306 and the second guide frame 307 through the correction guide rod 303. When there is a position deviation between the distribution element connected to the distribution network and the electrical connection structure, the connection bar 4 enters the contact opening 308, driving the two contact pieces 3018 fitted with the correction guide rod 303 to move along the first guide frame 306 and the second guide frame 307, and automatically adjust the position of the contact opening 308, so that the contact opening 308 and the connection bar 4 automatically correct the connection position and return to a good contact position, ensuring good contact of the connection.

[0129] The basic concepts have been described above. Obviously, for those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0130] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0131] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0132] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0133] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. An electrical connection unit, comprising a terminal, an electrical connection assembly and a connection bar, characterized in that: The electrical connection assembly comprises upper and lower soft conductive sheets, an elastic member, a correction guide rod unit, a limit plate unit, a first guide frame and a second guide frame, wherein the correction guide rod passes through the upper soft conductive sheet, the limit plate unit and the first guide frame in sequence upward, and the correction guide rod passes through the lower soft conductive sheet, the elastic member and the second guide frame in sequence downward; Among them, the correction guide rod forms a contact opening between the upper and lower soft conductive sheets, and the width of the contact opening is guided and adjusted between the first guide frame and the second guide frame by the up and down movement of the correction guide rod, so that the contact opening is corrected and connected to the connecting row to restore good contact.

2. The electrical connection unit according to claim 1, characterized in that: The upper and lower soft conductive sheets include a connecting section composed of a plurality of contact sheets, and the contact sheets are fitted with the correction guide rod under the action of the elastic member; the contact sheets are separated by a split seam, and the contact sheets are provided with a plurality of guide rod holes for the correction guide rod to pass through; the upper and lower soft conductive sheets also include a wiring section arranged on a side opposite to the connecting section, and the wiring section is provided with a plurality of wiring holes; Wherein, the connecting section and the wiring section are connected via an adjusting section, and a plurality of ventilation holes are provided on the adjusting section.

3. The electrical connection unit according to claim 2, characterized in that: The material of the adjustment section includes a metal conductive material with a hardness range of 30HB to 180HB.

4. The electrical connection unit according to claim 1, characterized in that: The correction guide rod unit comprises a plurality of correction guide rods, which are sequentially composed of a first guide end, a limit section, a mounting section, a first matching shoulder, a support section, a second matching shoulder, an elastic member mounting section and a second guide end; Among them, the first guide end corresponds to the first guide hole, and the first guide end passes through the first guide hole; the size of the limiting section is larger than the limiting hole, and the limiting section passes through the through hole; the first matching shoulder matches the guide rod hole, and the first matching shoulder passes through the guide rod hole; a rectangular limiting shoulder is provided on the side of the support section close to the connecting section, and the width of the limiting shoulder is slightly smaller than the thickness of the connecting row; a trapezoidal opening shoulder is provided on the side of the support section close to the adjusting section, and the large end of the trapezoidal opening shoulder is close to the side of the connecting row, and the width of the large end of the trapezoidal opening shoulder is slightly smaller than the thickness of the connecting row; the second matching shoulder matches the guide rod hole, and the second matching shoulder passes through the guide rod hole; the second guide end matches the second guide hole, and the second guide end passes through the second guide hole; a pin hole is provided at the intersection of the second guide end and the elastic member mounting section, and the pin hole is coupled with the positioning section.

5. The electrical connection unit according to claim 1, characterized in that: The limiting plate unit includes a plurality of combined limiting plates, wherein the limiting plates are L-shaped plates, and the horizontal portion of the L-shaped plates includes limiting holes and through holes that are interconnected.

6. The electrical connection unit according to claim 1, characterized in that: The first guide frame includes a first guide portion, a fastening portion and a first mounting portion, and the first guide portion is arranged on a side close to the connection row, and the first guide portion is provided with a plurality of first guide holes, and the first guide holes correspond to the guide rod holes on the contact sheet; the first guide portion is provided with a plurality of first heat dissipation holes, and the first heat dissipation holes correspond to the ventilation holes on the contact sheet; the first guide frame includes a first mounting portion, and the first mounting portion is provided with a first mounting hole; the first guide portion and the first mounting portion are naturally transitioned through the first fastening portion, and the first fastening portion is provided with a first fastening hole.

7. The electrical connection unit according to claim 1, characterized in that: The second guide frame includes a second guide portion, a second fastening portion and a second mounting portion, the second guide portion is provided with a plurality of second guide holes, and the second guide holes correspond to the guide rod holes on the contact sheet; the second guide portion is provided with a plurality of second heat dissipation holes, and the second heat dissipation holes correspond to the ventilation holes on the contact sheet; the second mounting portion is provided with a plurality of second mounting holes; and the second fastening portion is provided with a plurality of second fastening holes.

8. The electrical connection unit according to claim 2, characterized in that: The side surface of the connecting section near the connecting row is provided with an oblique angle.

9. The electrical connection unit according to claim 3, characterized in that: The adjusting section comprises a plurality of copper sheets with a thickness of 0.005 to 0.2 mm.

10. A self-correcting large-capacity electrical connection structure, comprising the electrical connection unit and the insulating housing as claimed in claims 1 to 9, characterized in that: The electrical connection unit array is arranged on the insulating shell, and the wiring terminals pass through the insulating shell and are placed outside the insulating shell.

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