Terminal connection structure

Abstract

The invention provides a terminal connection structure, and mainly solves the problems that the terminal connection structure is low in conductive efficiency, high in operation temperature rise, large in material consumption, large in occupied space and the like in a structure scheme of conveniently realizing two wiring modes of a terminal, namely a horizontal wiring mode and a vertical wiring mode, and different inter-phase wiring distances. Comprising a vertical wiring terminal, a horizontal wiring terminal, a horizontal expansion wiring terminal, a vertical expansion wiring terminal, an electric connector and a connecting fastener. And the vertical wiring terminal, the horizontal wiring terminal, the horizontal expansion wiring terminal and the vertical expansion wiring terminal are provided with the same connecting terminal. And the connecting end is connected and conducted with the electric connector in a fastening manner. The electric connector is installed and fixed in the insulating seat to form a horizontal wiring mode and a vertical wiring mode of the wiring end and different interphase wiring distances, so that the wiring end connecting structure is simplified, conductive consumables are reduced, the length of the wiring end connecting structure is shortened, space is saved, the resistance of the circuit breaker is reduced, and the operation heating of the circuit breaker is reduced. And the service life of equipment operation is prolonged.

Description

Technical Field

[0001] The invention relates to a circuit breaker, in particular to a connection structure of a wiring terminal of the circuit breaker. Background Art

[0002] When a circuit breaker with a large current specification is connected to a power distribution network, it is often connected to the line connector of the power distribution network through a terminal with a wiring hole to achieve connection between the circuit breaker and the power distribution network. The wiring terminal method of a circuit breaker with a large current specification will vary depending on the differences in the power distribution network, and is usually divided into two wiring methods: horizontal and vertical. In addition, each wiring method uses different phase-to-phase wiring spacing schemes to meet the different line widths of products with different current specifications connected to the distribution network. To this end, a variety of wiring methods and schemes are achieved through the connection structure of a specific terminal.

[0003] Existing technical solutions such as Figures 8 to 11 As shown, the wiring terminal adopts a switching wiring terminal 1c and a switching extension wiring terminal 11c that can be switched horizontally and vertically, and a transition piece 8c is used between the switching wiring terminal 1c or the switching extension wiring terminal 11c and the electrical connection 2c to implement the connection conduction transition. Among them, the electrical connection 2c is connected and conducted with the transition section 801c on the transition piece 8c, and the switching wiring terminal 1c or the switching extension wiring terminal 11c is fixedly connected to the mounting section 802c on the transition piece 8c through the connecting fastener 3c. When the switching fastening hole 104c on the switching wiring terminal 1c is fixedly connected through the horizontal row of mounting holes 803c on the transition piece 8c, the switching wiring terminal 103c on the switching wiring terminal 1c is horizontal with the mounting surface of the circuit breaker, which is a horizontal wiring method; when the switching fastening hole 104c on the switching wiring terminal 1c is fixedly connected through the vertical row of mounting holes 804c on the transition piece 8c, the switching wiring terminal 103c on the switching wiring terminal 1c is vertical with the mounting surface of the circuit breaker, which is a vertical wiring method. When the switching fastening hole 114c on the switching extension terminal 11c is fixedly connected through the horizontal row of mounting holes 803c on the transition piece 8c, the switching extension terminal 113c on the switching extension terminal 11c is horizontal to the mounting surface of the circuit breaker, which is a horizontal wiring method, and the terminal is extended to both sides, and the phase wiring spacing is greater than the solution without the switching extension terminal 11c; when the switching fastening hole 114c on the switching extension terminal 11c is fixedly connected through the vertical row of mounting holes 804c on the transition piece 8c, the switching extension terminal 113c on the switching extension terminal 11c is perpendicular to the mounting surface of the circuit breaker, which is a vertical wiring method.

[0004] The existing technical solution realizes a variety of terminal connection modes and phase-to-phase wiring spacing by using the transition piece 8c. The addition of the transition piece 8c not only increases the complexity of the entire terminal connection structure, increases the consumables of conductive materials, increases the length of the entire terminal connection structure, occupies more space, but also adds a contact connection link between the electrical connection 2c and the transition piece 8c in the entire terminal connection structure, increases the contact resistance of the entire terminal connection structure, causes the heat to increase during the operation of the circuit breaker, and affects the safety of use and the service life of the equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a terminal connection structure, which mainly solves the problems of conveniently realizing horizontal and vertical wiring modes of the terminal and different phase wiring spacings, the terminal connection structure has low conductive efficiency, high operating temperature, many consumables, and more space occupied.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a terminal connection structure, including a vertical terminal, a horizontal terminal, a horizontal extension terminal, a vertical extension terminal, an electrical connection, and a connection fastener. The terminal connection structure is installed and fixed in an insulating seat; the parts of the vertical terminal, the horizontal terminal, the horizontal extension terminal, and the vertical extension terminal used for wiring are placed outside the insulating seat; the insulating seat is installed and fixed in a frame structure composed of a side plate, a top cover, and a bottom plate. It is characterized in that the vertical terminal, the horizontal terminal, the horizontal extension terminal, and the vertical extension terminal are provided with the same connection terminal. The connection terminal is fastened and connected to the electrical connection. The electrical connection is installed and fixed in the insulating seat to form two wiring modes of the terminal, horizontal and vertical, and different phase wiring spacings.

[0007] Furthermore, the end of the vertical wiring terminal close to the electrical connection is provided with a connection terminal in the same direction as the electrical connection arrangement. The connection terminal is provided with a fastening hole for installation and fixation. The other end of the vertical wiring terminal is provided with a vertically arranged vertical wiring segment. The vertical wiring segment is provided with a wiring hole for wiring. The vertical wiring segment is arranged centrally relative to the connection terminal. The connection terminal and the vertical wiring segment are transitionally connected and conducted through a flat vertical connecting plate.

[0008] Furthermore, the horizontal wiring terminal is a flat plate type, and one end of the horizontal wiring terminal close to the electrical connection is provided with a connection end in the same direction as the electrical connection arrangement. The connection end is provided with a fastening hole for installation and fixation. The other end of the horizontal wiring terminal is provided with a horizontally arranged horizontal wiring segment. The horizontal wiring segment is provided with a wiring hole for wiring. The horizontal wiring segment is arranged centrally relative to the connection end. The connection end and the horizontal wiring segment are naturally connected and conducted through a horizontal connecting plate.

[0009] Furthermore, the horizontal extension terminal is a flat plate type, and one end of the horizontal extension terminal close to the electrical connection is provided with a connection end in the same direction as the electrical connection arrangement. The connection end is provided with a fastening hole for installation and fixation. The other end of the horizontal extension terminal is provided with a horizontally arranged horizontal extension wiring segment. The horizontal extension wiring segment is provided with a wiring hole for wiring. The horizontal extension wiring segment is offset to one side relative to the connection end. The connection end and the horizontal extension wiring segment are naturally transitionally connected and conducted through an inclined trapezoidal horizontal extension transition plate.

[0010] Furthermore, the end of the vertical extension terminal close to the electrical connection is provided with a connection end in the same direction as the electrical connection arrangement. The connection end is provided with a fastening hole for installation and fixation. The other end of the vertical connection terminal is provided with a vertically arranged vertical extension wiring segment. The vertical extension wiring segment is provided with a wiring hole for wiring. The vertical extension wiring segment is offset to one side relative to the connection end. The connection end and the vertical extension wiring segment are transitionally connected and conducted through a flat vertical extension connection plate. The end of the vertical extension connection plate close to the vertical extension wiring segment is a large end with a larger width, and the other end is a small end with a smaller width.

[0011] Furthermore, the electrical connection is provided with a connection section at one end close to the vertical terminal, the horizontal terminal, the horizontal extension terminal, and the vertical extension terminal. The connection section is provided with connection holes. The connection holes correspond to the fastening holes one by one.

[0012] The technical effect of the present invention is that by setting the same connection terminal for fixed connection and conduction with the electrical connection on different terminals, the transition piece 8c used to install the transition in the prior art solution is eliminated. While maintaining the diversity of wiring methods and solutions, the terminal connection structure is simplified, the conductive material consumption is reduced, the length of the entire terminal connection structure is shortened, and space is saved. At the same time, the contact connection link between the electrical connection 2c and the transition piece 8c is removed, the resistance of the entire terminal connection structure is reduced, the heat generated during the operation of the circuit breaker is reduced, and the reliability and life of the equipment operation are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention relates to an overall schematic diagram of a vertical wiring method of a terminal connection structure;

[0014] Figure 2 The present invention relates to a partial structural schematic diagram of a vertical wiring mode of a wiring terminal connection structure;

[0015] Figure 3 The present invention relates to a structural schematic diagram of a vertical terminal of a terminal connection structure;

[0016] Figure 4The present invention relates to an overall schematic diagram of a horizontal expansion wiring method of a wiring terminal connection structure;

[0017] Figure 5 The present invention relates to a structural schematic diagram of a horizontal extension terminal of a terminal connection structure;

[0018] Figure 6 The present invention relates to an overall schematic diagram of a vertically extended wiring method of a wiring terminal connection structure;

[0019] Figure 7 The present invention relates to a structural schematic diagram of a vertically extended terminal of a terminal connection structure;

[0020] Figure 8 The present invention relates to an overall schematic diagram of a horizontal wiring method of a terminal connection structure;

[0021] Fig. 9 The present invention relates to a partial structural schematic diagram of a horizontal wiring mode of a wiring terminal connection structure;

[0022] Fig.10 The present invention relates to a structural schematic diagram of a horizontal terminal of a terminal connection structure;

[0023] Fig.11 An overall schematic diagram of the existing terminal connection structure;

[0024] Fig.12 An exploded view of the local structure of the horizontal wiring method of the existing terminal connection structure;

[0025] Fig.13 An exploded view of the local structure of the vertical wiring method of the existing terminal connection structure;

[0026] Fig.14 A structural diagram of an existing terminal connection structure. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0028] Marking Description:

[0029] Vertical terminals 1, 1b, horizontal terminal 1a,

[0030] Connecting terminals 101, 101a, 101b, 111a, 111b,

[0031] Vertical connecting plates 102, 102b, horizontal connecting plate 102a,

[0032] Vertical wiring segments 103, 103b, horizontal wiring segment 103a,

[0033] Fastening holes 104, 104a, 104b, 114a, 114b,

[0034] Wiring holes 105, 105a, 105b, 115a, 115b,

[0035] Switch terminal 1c,

[0036] Switch the connection terminals 101c and 111c, switch the wiring terminals 103c and 113c, switch the fastening holes 104c and 114c, switch the wiring holes 105c and 115c,

[0037] Electrical connection 2, 2c,

[0038] Connecting sections 201, 201c, bridge sections 202, 202c, plug sections 203, 203c, connecting holes 204,

[0039] Connecting fasteners 3, 3c,

[0040] Insulation seat 4, 4c,

[0041] Side panels 5, 5c,

[0042] Top cover 6, 6c,

[0043] Interconnection spacing between phases 7, 7a, 7b, 7c,

[0044] Transition piece 8c,

[0045] Transition section 801c, mounting section 802c, horizontal row of mounting holes 803c, vertical row of mounting holes 804c

[0046] Bottom plate 9, 9c,

[0047] Horizontal extension terminal 11a, vertical extension terminal 11b, switching extension terminal 11c,

[0048] Horizontally extending transition plate 112a, vertically extending transition plate 112b, large end 1121b, small end 1122b,

[0049] Horizontal expansion wiring segment 113a, vertical expansion wiring segment 113b, switching expansion wiring segment 113c,

[0050] The present invention proposes a terminal connection structure, including a vertical terminal 1, a horizontal terminal 1a, a horizontal extension terminal 11a, a vertical extension terminal 11b, an electrical connection 2, and a connection fastener 3.

[0051] like Figure 2 As shown, a connection section 201 is provided at one end of the electrical connection 2 close to the vertical wiring terminal 1. A connection hole 204 is provided on the connection section 201. The connection section 201 and the connection hole 204 are used to be fixedly connected and conducted with the vertical wiring terminal 1. A plug section 203 is provided at the other end of the electrical connection 2, which is used to be connected and conducted with the circuit breaker body line. The connection section 201 and the plug section 203 are naturally transitioned through the bridge section 202. The direction of the electrical connection 2 can be either horizontal or vertical to the installation surface of the circuit breaker. When the direction of the electrical connection 2 is horizontal to the installation surface of the circuit breaker, the connection section 201 is horizontal to the installation surface of the vertical wiring terminal 1; when the direction of the electrical connection 2 is vertical to the installation surface of the circuit breaker, the connection section 201 is vertical to the installation surface of the vertical wiring terminal 1.

[0052] like Figure 3 As shown, the vertical terminal 1 is provided with a connection terminal 101 arranged in the same direction as the electrical connection 2 at one end thereof close to the electrical connection 2 . Figure 2 The arrangement direction of the electrical connection 2 shown is horizontal to the circuit breaker installation surface, so the matching connection end 101 is set horizontally. It is worth pointing out that when the arrangement direction of the electrical connection 2 is perpendicular to the circuit breaker installation surface, the matching connection end 101 is set vertically. The connection end 101 is provided with a fastening hole 104 for installation and fixation. The fastening hole 104 corresponds one-to-one with the connection hole 204 on the electrical connection 2. The other end of the vertical wiring terminal 1 is provided with a vertical wiring segment 103 arranged vertically relative to the circuit breaker installation surface. The vertical wiring segment 103 is provided with a wiring hole 105 for wiring. The vertical wiring segment 103 is arranged centrally relative to the connection end 101. The connection end 101 and the vertical wiring segment 103 are transitionally connected and conducted through a flat vertical connecting plate 102.

[0053] like Figure 2 As shown, the connection end 101 of the vertical terminal 1 is coupled to the connection section 201 of the electrical connection 2, and is fastened and connected by the connection fastener 3 to form a terminal connection structure. Figure 1 As shown, the terminal connection structure is installed and fixed in the insulating seat 4. The vertical wiring section 103 of the vertical terminal 1 for wiring is placed outside the insulating seat 4. The insulating seat 4 is installed and fixed in a frame structure composed of a side plate 5, a top cover 6, and a bottom plate 9. Because the vertical wiring section 103 for wiring placed outside the insulating seat 4 is perpendicular to the circuit breaker installation surface, it is a vertical wiring method of the circuit breaker. The circuit breaker generally sets the wiring terminals according to the number of phases of the protected line. Figure 1The circuit breaker shown is used to protect a 3-phase distribution line. Each phase is provided with one incoming line terminal and one outgoing line terminal, which are arranged vertically. The incoming line terminal and the outgoing line terminal of each phase are aligned vertically. The entire circuit breaker is provided with 6 terminals in total. The center distance between the terminals of two adjacent phases in the horizontal direction is the phase-to-phase wiring spacing 7.

[0054] The size of the phase-to-phase wiring spacing 7 is closely related to the safe insulation distance between each phase of the access line. The circuit breaker of the same frame will be set with a variety of rated current specifications. The larger the rated current specification, the larger the conductive cross-sectional area of ​​the access line, and the more space it needs to occupy. When the size of the phase-to-phase wiring spacing 7 remains unchanged, the safe insulation distance between each phase of the access line will become smaller, and the insulation reliability will deteriorate. In particular, as the voltage of the power facilities increases, the safe insulation distance between each phase of the access line becomes smaller, which can easily cause safety hazards. For this reason, the method of expanding the terminal in the horizontal direction is often adopted to increase the phase-to-phase wiring spacing, thereby increasing the safe insulation distance between each phase of the access line and increasing the system reliability. Figure 6 As shown, a vertical extension terminal 11b is provided to increase the spacing between the interconnections in the vertical wiring mode.

[0055] Further, such as Figure 7 As shown, the vertical extension terminal 11b is provided with a connection end 111b arranged in the same direction as the electrical connection 2 at one end close to the electrical connection 2. The connection end 111b is provided with a fastening hole 114b for installation and fixation. The connection end 111b on the vertical extension terminal 11b is the same as the connection end 101 on the vertical terminal 1. The other end of the vertical terminal 11b is provided with a vertical extension wiring segment 113b arranged vertically. The vertical extension wiring segment 113b is provided with a wiring hole 115b for wiring. The vertical extension wiring segment 113b is offset to one side in the horizontal direction relative to the connection end 111b. The connection end 111b and the vertical extension wiring segment 113b are transitionally connected and conducted through a flat vertical extension connecting plate 112b. The end of the vertical extension connecting plate 112b close to the vertical extension wiring segment 113b is a large end 1121b with a larger width, and the other end is a small end 1122b with a smaller width. Figure 6As shown, the number of phases of the circuit breaker is 3, the incoming and outgoing wiring terminals of the middle phase of the circuit breaker adopt vertical wiring terminals 1b, and the incoming and outgoing wiring terminals of the left and right phases of the circuit breaker adopt vertical extension wiring terminals 11b. The vertical wiring terminals 1b and vertical extension wiring terminals 11b are fixedly connected and conducted with the electrical connection 2 through their respective connection terminals 101b and connection terminals 111b, respectively, and together constitute their respective wiring terminal connection structures, which are fixedly installed in the insulating seat 4 to form a vertically extended wiring method, and the horizontal distance between the vertical wiring terminal 1b and the vertical extension wiring terminal 11b constitutes the phase-to-phase wiring spacing 7b. Because the vertical extension wiring segment 113b is offset to one side relative to the connection terminal 111b in the horizontal direction, the formed phase-to-phase wiring spacing 7b is greater than the phase-to-phase wiring spacing 7 of the vertical wiring method.

[0056] Further, such as Figure 5 As shown, the horizontal terminal 1a is a flat plate. The end of the horizontal terminal 1a close to the electrical connection 2 is provided with a connection end 101a in the same arrangement direction as the electrical connection 2. The connection end 101a is provided with a fastening hole 104a for installation and fixation. The connection end 101a on the horizontal terminal 1a is the same as the connection end 101a on the horizontal terminal 1a. The other end of the horizontal terminal 1a is provided with a horizontal wiring segment 103a. The arrangement direction of the horizontal wiring segment 103a is horizontal to the circuit breaker installation surface. The horizontal wiring segment 103a is provided with a wiring hole 105a for wiring. The horizontal wiring segment 103a is arranged centrally relative to the connection end 101a. The connection end 101a and the horizontal wiring segment 103a are naturally connected and conducted through a horizontal connecting plate 102a.

[0057] The horizontal extension terminal 11a is a flat plate. The end of the horizontal extension terminal 11a close to the electrical connection 2 is provided with a connection end 111a in the same arrangement direction as the electrical connection 2. The connection end 111a is provided with a fastening hole 114a for installation and fixation. The other end of the horizontal extension terminal 11a is provided with a horizontal extension wiring segment 113a. The arrangement direction of the horizontal extension wiring segment 113a is horizontal to the circuit breaker installation surface. The horizontal extension wiring segment 113a is provided with a wiring hole 115a for wiring. The horizontal extension wiring segment 113a is offset to one side relative to the connection end 111a. The connection end 111a and the horizontal extension wiring segment 113a are naturally transitionally connected and conducted through an inclined trapezoidal horizontal extension transition plate 112a.

[0058] Figure 4As shown, the number of phases of the circuit breaker is 3, the incoming and outgoing wiring terminals of the middle phase of the circuit breaker adopt horizontal wiring terminals 1a, and the incoming and outgoing wiring terminals of the left and right phases of the circuit breaker adopt horizontal extension wiring terminals 11a. The horizontal wiring terminals 1a and the horizontal extension wiring terminals 11a are fixedly connected and conducted with the electrical connection 2 through their respective connection terminals 101a and connection terminals 111a, respectively, and together constitute their respective wiring terminal connection structures, which are fixedly installed in the insulating seat 4 to form a horizontally extended wiring method, and the horizontal distance between the horizontal wiring terminal 1a and the horizontal extension wiring terminal 11a constitutes the phase-to-phase wiring spacing 7a. Because the horizontal extension wiring segment 113a is offset to one side relative to the connection terminal 111a along the horizontal direction, the formed phase-to-phase wiring spacing 7a is greater than the phase-to-phase wiring spacing 7 of the vertical wiring method.

[0059] To this end, a terminal connection structure of the present invention adopts the same electrical connection 2, connection fastener 3, insulating seat 4, side plate 5, and top cover 6. The vertical terminal 1, vertical terminal 1b, horizontal terminal 1a, horizontal extension terminal 11a, and vertical extension terminal 11b are respectively provided with the same connection terminals 101, 101a, 101b, 111a, and 111b, and the connection terminals 101, 101a, 101b, 111a, and 111b are fastened and connected to the electrical connection 2 to form respective terminal connection structures, which are fixedly installed in the insulating seat 4. Figure 1 As shown, when the vertical wiring terminal 1 is used, a vertical wiring mode of the circuit breaker is formed, and the phase-to-phase wiring distance 7; Figure 6 As shown, when the vertical wiring terminal 1b and the vertical extension wiring terminal 11b are used, a vertical wiring mode in which the circuit breaker extends to the left and right sides is formed, and the phase-to-phase wiring distance is 7b; Figure 8 As shown, when the horizontal terminal 1a is used, a horizontal wiring mode of the circuit breaker is formed, and the phase-to-phase wiring distance is 7; Figure 4 As shown, when the horizontal terminal 1a and the horizontal extension terminal 11a are used, a horizontal wiring mode of the circuit breaker extending to the left and right sides and a phase-to-phase wiring spacing 7a are formed. Compared with the traditional technology, the vertical terminal 1, the vertical terminal 1b, the horizontal terminal 1a, the horizontal extension terminal 11a, and the vertical extension terminal 11b are directly connected and conducted with the electrical connection 2 without passing through the transition piece 8c. On the one hand, the terminal connection structure is simplified and the conductive material consumption is reduced; on the other hand, the length of the entire terminal connection structure is shortened and space is saved. At the same time, the contact connection link between the electrical connection 2c and the transition piece 8c is removed, the resistance of the entire terminal connection structure is reduced, the heat generated during the operation of the circuit breaker is reduced, and the reliability and life of the equipment operation are improved.

[0060] The above is only a preferred embodiment of the present invention, and is not a limitation of the present invention in any way or in essence. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present invention, can make some changes, modifications and equivalent changes made by using the technical content disclosed above, which are equivalent embodiments of the present invention; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A terminal connection structure, comprising a vertical terminal (1, 1b), a horizontal terminal (1a), a horizontal extension terminal (11a), a vertical extension terminal (11b), an electrical connection (2), and a connection fastener (3); the terminal connection structure is installed and fixed in an insulating seat (4); the parts of the vertical terminal (1, 1b), the horizontal terminal (1a), the horizontal extension terminal (11a), and the vertical extension terminal (11b) used for wiring are placed outside the insulating seat (4); the insulating seat (4) is installed and fixed in a frame structure composed of a side plate (5), a top cover (6), and a bottom plate (9); It is characterized in that The vertical wiring terminals (1, 1b), the horizontal wiring terminals (1a), the horizontal extension wiring terminals (11a), and the vertical extension wiring terminals (11b) are provided with identical connection terminals (101, 101a, 101b, 111a, 111b); the connection terminals (101, 101a, 101b, 111a, 111b) are tightly connected and conducted with the electrical connection (2); the electrical connection (2) is installed and fixed in the insulating seat (4), forming two wiring modes of the wiring terminals, horizontal and vertical, and different phase-to-phase wiring spacings (7, 7a, 7b).

2. A terminal connection structure according to claim 1, characterized in that: One end of the vertical wiring terminal (1, 1b) close to the electrical connection (2) is provided with a connection end (101, 101b) arranged in the same direction as the electrical connection (2); the connection end (101, 101b) is provided with a fastening hole (104, 104b) for installation and fixing; The other end of the vertical wiring terminal (1, 1b) is provided with a vertical wiring segment (103, 103b) arranged vertically; the vertical wiring segment (103, 103b) is provided with a wiring hole (105, 105b) for wiring; the vertical wiring segment (103, 103b) is arranged in the center relative to the connection terminal (101, 101b); The connection end (101, 101b) and the vertical wiring segment (103, 103b) are transitionally connected and conducted via a flat vertical connection plate (102, 102b).

3. A terminal connection structure according to claim 1, characterized in that: The horizontal wiring terminal (1a) is of a flat plate type; one end of the horizontal wiring terminal (1a) close to the electrical connection (2) is provided with a connection end (101a) arranged in the same direction as the electrical connection (2); the connection end (101a) is provided with a fastening hole (104a) for installation and fixing; The other end of the horizontal wiring terminal (1a) is provided with a horizontally arranged horizontal wiring segment (103a); the horizontal wiring segment (103a) is provided with a wiring hole (105a) for wiring; the horizontal wiring segment (103a) is arranged in the center relative to the connection terminal (101a); The connection end (101a) and the horizontal wiring segment (103a) are naturally connected and conducted via a horizontal connection plate (102a).

4. A terminal connection structure according to claim 1, characterized in that: The horizontal extension terminal (11a) is of a flat plate type; one end of the horizontal extension terminal (11a) close to the electrical connection (2) is provided with a connection end (111a) arranged in the same direction as the electrical connection (2); the connection end (111a) is provided with a fastening hole (114a) for installation and fixing; The other end of the horizontally extended wiring terminal (11a) is provided with a horizontally arranged horizontally extended wiring segment (113a); the horizontally extended wiring segment (113a) is provided with a wiring hole (115a) for wiring; the horizontally extended wiring segment (113a) is offset to one side relative to the connection end (111a); The connection end (111a) and the horizontal expansion wiring segment (113a) are naturally transitionally connected and conducted through an oblique trapezoidal horizontal expansion transition plate (112a).

5. A terminal connection structure according to claim 1, characterized in that: An end of the vertical extension terminal (11b) close to the electrical connection (2) is provided with a connection end (111b) arranged in the same direction as the electrical connection (2); a fastening hole (114b) for installation and fixing is provided on the connection end (111b); The other end of the vertical wiring terminal (11b) is provided with a vertically arranged vertical extension wiring segment (113b); the vertical extension wiring segment (113b) is provided with a wiring hole (115b) for wiring; the vertical extension wiring segment (113b) is offset to one side relative to the connection end (111b); The connection end (111b) and the vertical expansion wiring segment (113b) are transitionally connected and conducted via a flat vertical expansion connection plate (112b); one end of the vertical expansion connection plate (112b) close to the vertical expansion wiring segment (113b) is a large end (1121b) with a larger width, and the other end is a small end (1122b) with a smaller width.

6. A terminal connection structure according to claim 1, characterized in that: The electrical connection (2) is provided with a connection section (201) at one end close to the vertical connection terminal (1, 1b), the horizontal connection terminal (1a), the horizontal extension connection terminal (11a), and the vertical extension connection terminal (11b); the connection section (201) is provided with a connection hole (204); the connection hole (204) corresponds one-to-one to the fastening holes (104, 104a, 104b, 114a, 114b).

Images