Secondary terminal assembly

Abstract

The utility model relates to a secondary terminal assembly which is constructed to be used for a circuit breaker, and comprises a support which is constructed to be provided with an approximately L-shaped accommodating cavity, the accommodating cavity extends along the length direction of the support, and the accommodating cavity defines a plurality of accommodating grooves extending along the width direction of the support at the bottom of the support; and the secondary terminal comprises a plurality of plate-shaped terminal bodies, and the plurality of terminal bodies are adjacent to one another and are respectively and correspondingly inserted into the accommodating grooves of the bracket. The utility model provides a secondary terminal assembly, which is provided with a novel support and a novel secondary terminal structure, has the advantages of simple and reasonable structural design, proper position arrangement and easiness in assembly and disassembly, and can still meet the performance requirements of products while realizing miniaturization. In addition, the miniaturized secondary terminal assembly also saves the use of manufacturing materials (such as metal copper and other possibly applicable materials), and reduces the cost of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a secondary terminal assembly. Background Art

[0002] In the prior art, circuit breakers are usually used in combination with secondary terminals, which are generally connected to the top of the circuit breaker. Due to the unreasonable structural design of the secondary terminals in the prior art, circuit breakers equipped with secondary terminals usually have excessively large longitudinal dimensions.

[0003] As we all know, due to the limitations of urban space, the design of electrical equipment tends to be more miniaturized in order to complete the installation of equipment and realize its functions in the most limited space possible. However, the existing secondary terminals are obviously unable to meet such requirements.

[0004] In addition, existing secondary terminals have defects such as inconvenient installation and high cost.

[0005] Therefore, there is still a need for improvement of secondary terminals in the relevant field to further optimize their performance to improve or solve the problems existing in the existing technology. Utility Model Content

[0006] Therefore, the task of the present invention is to provide a secondary terminal assembly to overcome the above-mentioned shortcomings of the prior art.

[0007] In order to accomplish the above-mentioned task, the present invention provides a secondary terminal assembly, which is constructed for a circuit breaker and is characterized in that it includes: a bracket, which is constructed to have a roughly L-shaped accommodating cavity, the accommodating cavity extends along the length direction of the bracket, and the accommodating cavity defines a plurality of accommodating grooves extending along the width direction of the bracket at the bottom of the bracket; a secondary terminal, which includes a plurality of plate-shaped terminal bodies, the plurality of terminal bodies are adjacent to each other and are respectively inserted into the accommodating grooves of the bracket.

[0008] Thus, the secondary terminal assembly provided by the present invention features a novel bracket and secondary terminal structure, offering advantages such as a simple and rational structural design, appropriate positioning, and ease of assembly and disassembly. Furthermore, the miniaturization of the secondary terminal assembly also reduces the use of manufacturing materials (such as copper and other suitable materials), thereby reducing product costs.

[0009] In a preferred embodiment, the terminal body includes: a plate-like shell member, which is constructed to be roughly L-shaped and has a pair of engagement grooves defined therein that are arranged roughly parallel to each other, the engagement groove having a main groove portion and an extension groove portion, the main groove portion is located in the longitudinal section of the L-shaped plate-like shell member, and the extension groove portion extends from the main groove portion to the transverse section of the L-shaped plate-like shell member; a retaining spring group, which is correspondingly installed in the engagement groove, the retaining spring group includes a main member and an extension member engaged therewith, the main member being accommodated in the main groove portion, the extension member being constructed so that a portion of it in the main groove portion engages the main member, and the remaining portion extends and is accommodated in the extension groove portion, and the portion of the extension member that engages the main member is roughly perpendicular to the transverse section of the plate-like shell member.

[0010] In a preferred embodiment, the main body of the retaining spring group is constructed into a ring shape, which is placed in a direction extending away from the extension member along the transverse section; the extension member of the retaining spring group includes: a first section, which engages the main body and is arranged parallel to the longitudinal section; a second section, which extends away from the main body and is arranged parallel to the transverse section, and the second section is arranged to be approximately perpendicular to the first section; a transition section, which is located between the first section and the second section and is arranged at an angle relative to the first section.

[0011] In a preferred embodiment, the retaining spring group includes a first retaining spring group and a second retaining spring group, the first retaining spring group is located on the side of the longitudinal section away from the transverse section, and the second retaining spring group is located on the side of the longitudinal section close to the transverse section, wherein the first section of the extension of the first retaining spring group is arranged at an obtuse angle relative to its transition section, and the first section of the extension of the second retaining spring group is arranged at an acute angle relative to its transition section.

[0012] In a preferred embodiment, the accommodating groove is defined by two adjacent substantially inverted L-shaped ridges to form a substantially inverted T-shaped structure.

[0013] In a preferred embodiment, the plate-shaped shell is provided with slots for engaging the ridges on a pair of opposite side surfaces thereof, and the slots are located below the engaging groove and close to the bottom of the plate-shaped shell.

[0014] In a preferred embodiment, two pairs of engagement grooves are defined inside the plate-shaped shell, wherein each pair of engagement grooves is arranged on one side of the plate-shaped shell, and the two pairs of engagement grooves are spaced apart from each other.

[0015] In a preferred embodiment, the bracket includes: a base plate, which is provided with a ridge for constructing the accommodating groove on the inner side defining the accommodating cavity, and the base plate is provided with a joint portion on the outer side, and the joint portion is configured to be detachably engaged to the circuit breaker using a joint member; a back plate, which is perpendicular to the base plate and arranged along the length direction of the base plate, and the back plate is provided with a first protrusion on the outer side for engaging with the socket provided at the corresponding position of the circuit breaker, so that it can be detachably engaged to the circuit breaker; a pair of side plates, which are located on both sides of the base plate and are arranged perpendicularly relative to the base plate and the back plate, and each of the side plates is provided with a second protrusion on the outer side to cooperate with the block provided at the corresponding position of the circuit breaker, thereby defining the bracket relative to the circuit breaker.

[0016] In a preferred embodiment, at least a first limiting member is provided on the plate-like shell member, and the first limiting member is located on the narrow side edge of the longitudinal section away from the transverse section. The top of the back plate has a flange extending toward one side of the accommodating cavity, and the flange is provided with an engaging hole. The first limiting member is configured to engage with the engaging hole, so that the plate-like shell member can be positioned to the bracket to avoid the terminal body from detaching from the accommodating groove along the length direction of the accommodating groove.

[0017] In a preferred embodiment, a second limiting member is further provided on the longitudinal section of the plate-like shell, and the second limiting member is longitudinally arranged below the first limiting member and abuts against the back plate to limit the movement of the terminal body in the width direction of the accommodating cavity.

[0018] Some of the other features and advantages of the present invention will be obvious to those skilled in the art who have read the present invention, and the other parts will be described in the following detailed description in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a three-dimensional diagram of the secondary terminal assembly provided by the present utility model;

[0021] Figure 2 This is a three-dimensional diagram of the secondary terminal assembly provided by the present invention, wherein part of the terminal body is removed for easier observation;

[0022] Figure 3 This is a three-dimensional diagram of the bracket of the secondary terminal assembly provided by the present invention;

[0023] Figure 4 This is a view of the internal structure of the terminal body of the secondary terminal assembly provided by the present invention, wherein a retaining spring assembly is shown;

[0024] Figure 5 yes Figure 4 A view of the internal structure of the other side of the middle terminal body with the retaining spring assembly removed;

[0025] Figure 6 This is a three-dimensional diagram of the retaining spring assembly of the secondary terminal assembly provided by the present invention;

[0026] Figure 7 This is a three-dimensional diagram of the secondary terminal assembly provided by the present invention applied to a circuit breaker, wherein part of the structure of the circuit breaker is removed for easier observation;

[0027] Figure 8 This is a three-dimensional diagram of the secondary terminal assembly provided by the utility model applied to a circuit breaker.

[0028] Description of Reference Numerals

[0029] 1-Secondary terminal assembly; 10-Bracket; 100-Base plate; 100a-Ribbon; 100b-Joint portion; 102-Back plate; 102a-First protrusion; 102b-Flange; 102c-Joint hole; 104-Side plate; 104a-Second protrusion; 106-Accommodation cavity; 106a-Accommodation groove; 12-Terminal body; 120-Plate shell; 120a-Joint groove; 120b-Main body Groove portion; 120c-extended groove portion; 120d-longitudinal section; 120e-transverse section; 120f-first limiting member; 120g-second limiting member; 122-spring assembly; 122a-main body; 122b-extension member; 122c-first section; 122d-second section; 122e-transition section; 122f-slot; 122g-introduction portion; 122h-positioning portion; 2-circuit breaker. DETAILED DESCRIPTION

[0030] With reference to the accompanying drawings, exemplary embodiments of the secondary terminal assembly according to the present invention will now be described in detail. The accompanying drawings are provided to illustrate various embodiments of the present invention, but they are not necessarily drawn to the dimensions of the specific embodiments, and certain features may be enlarged, removed, or partially cut away to better illustrate and explain the disclosure of the present invention. Some components in the accompanying drawings may be repositioned as needed without affecting the technical effect. The phrase "in the accompanying drawings" or similar terms appearing in this specification do not necessarily refer to all drawings or examples.

[0031] definition:

[0032] The terms "first", "first", "second", "second" and similar terms in this utility model do not indicate any order, quantity or importance, but are used to distinguish one component from other components.

[0033] In this specification, the terms "inside", "outside", "lower", "bottom", "upper" and "top" refer to directions determined relative to a fully constructed and upright circuit breaker. Unless otherwise specified, the directional terms described in this specification are basically in accordance with the conventional directions understood by those skilled in the art.

[0034] With respect to structural terms, the terms “disposed” or “provided” are used herein to indicate that one or more elements are located in a particular place or position as a macro-integral structure with other elements or as a separate element joined to another element.

[0035] As used herein, the term “connected” includes configurations in which an element is directly secured to another element by attaching the element directly to the other element, as well as configurations in which the element is indirectly secured to another element by attaching the element to an intermediate member that is in turn attached to the other element.

[0036] As used herein, the term "comprising" refers to various components, ingredients, or steps that can be combined and applied in the process of practicing the present invention. Therefore, the term "comprising" is an open-ended term and includes the more restrictive terms "essentially consisting of..." and "consisting of..."

[0037] As used herein, the terms “substantially” or “approximately” mean that the parameters or values ​​referenced need not be achieved precisely, but that deviations or variations (including, for example, tolerances, measurement errors, measurement precision limitations, and other factors known to those skilled in the art) may occur in an amount that does not interfere with the effect that the feature is intended to provide.

[0038] Figure 1 This is a three-dimensional diagram of the secondary terminal assembly 1 provided by the present invention. Figure 2 1 is a perspective view of the secondary terminal assembly 1 provided by the present invention, wherein part of the terminal body 12 is removed for easy observation. Figures 1 to 2 As shown, the secondary terminal assembly 1 includes a bracket 10 and a secondary terminal confined within the bracket 10. The bracket 10 is comprised of at least a base plate 100, a back plate 102, and a pair of side plates 104. These are generally quadrilateral structures and together define a generally L-shaped accommodating cavity 106, which extends along the length of the bracket 10. The base plate 100 is provided with a plurality of generally inverted L-shaped ridges 100a on the inner side defining the accommodating cavity 106. Adjacent ridges 100a on the base plate 100 together define a generally T-shaped accommodating groove 106a, which extends along the width of the bracket 10 (which can be considered to be along one of the short sides of the base plate 100, i.e., the width of the base plate 100). The secondary terminal includes a plurality of plate-shaped terminal bodies 12, which are adjacent to each other and are inserted into the accommodating grooves 106a of the bracket 10, respectively.

[0039] Figure 3 It is a three-dimensional diagram of the bracket 10 of the secondary terminal assembly 1 provided by the present invention.

[0040] See also Figure 3 The base plate 100 is provided with a joint portion 100b on its outer side (here, the outer side opposite the inner side of the base plate 100 defining the accommodating cavity 106). The joint portion 100b is arranged substantially perpendicular to the base plate 100 and may be configured, for example, as a hole through which a joint member passes to removably join the bracket 10 to the circuit breaker 2. The bottom of the base plate 100 may also be provided with a plurality of ribs, which may be arranged, for example, at both ends and in the middle of the base plate 100, extending along the width of the base plate 100. Compared to the prior art, this invention utilizes fewer joint members, facilitating user installation.

[0041] See again Figure 3 The back plate 102 is perpendicular to the base plate 100 and extends along its length. A first protrusion 102a is provided on the outer side of the back plate 102. A corresponding insertion hole is provided on the circuit breaker 2, corresponding to the first protrusion 102a. The first protrusion 102a engages the insertion hole, allowing the back plate 102 to be removably attached to the circuit breaker 2. The first protrusion 102a is located slightly above the center of the back plate 102. An engagement portion 100b extends from the bottom of the base plate 100 in a direction substantially aligned with the direction of the back plate 102. By providing the first protrusion 102a located slightly above the center of the back plate 102 and the engagement portion 100b on the base plate 100, the bracket 10 can be more stably attached to the circuit breaker 2, at least in the longitudinal direction (the vertical direction as shown in the figure).

[0042] from Figure 3 As can be seen in the figure, the pair of side panels 104 of the bracket 10 are located on either side of the base plate 100 and are arranged perpendicularly relative to the base plate 100 and back plate 102. That is, the base plate 100, back plate 102, and the pair of side panels 104 collectively define an L-shaped accommodating cavity 106 of the bracket 10. Each side panel 104 may be provided with a second protrusion 104a on one side outside the accommodating cavity 106. The circuit breaker 2 is provided with a locking block at a corresponding position. Through the engagement between the second protrusion 104a and the locking block, the bracket 10 can be limited from undesirable movement relative to the circuit breaker 2 in at least the lateral direction (the left-right direction as shown in the figure), thereby enabling the bracket 10 to be more stably coupled to the circuit breaker 2.

[0043] The back plate 102 of the bracket 10 is also provided with a flange 102b at the top extending toward one side of the accommodating cavity 106, and the flange 102b is provided with a coupling hole 102c. The provision of the coupling hole 102c can, on the one hand, allow the first limiting member 120f of the plate-like shell 120 to be mentioned below to engage therein to position it, and on the other hand, it can also facilitate the insertion of tools such as screwdrivers, thereby facilitating the user to insert the tool from above to disengage the first limiting member 120f from the plate-like shell 120, thereby facilitating the removal of the terminal body 12 from the bracket 10.

[0044] Figure 4 This is a view of the internal structure of the terminal body 12 of the secondary terminal assembly 1 provided by the present invention, in which the retaining spring group 122 is shown.

[0045] like Figure 4 As shown, the terminal body 12 includes a plate-shaped housing 120 and a retaining spring assembly 122 housed therein. The plate-shaped housing 120 is constructed in a generally L-shaped structure, defining two pairs of engagement slots 120a therein. Each pair of engagement slots 120a is arranged on one side of the plate-shaped housing, and the two pairs of engagement slots 120a are spaced apart from each other. After the retaining springs are disposed within the plate-shaped housing 120, a cover can be used to confine the retaining springs within the plate-shaped housing 120. The structure of the engagement slots 120a will be described in detail below, using one pair of engagement slots 120a as an example.

[0046] Figure 5 yes Figure 4 The internal structure view of the other side of the middle terminal body 12, wherein the spring assembly 122 is removed. Figure 5 As shown, the engagement groove 120a of the plate-like housing 120 includes a main groove portion 120b and an extended groove portion 120c. The main groove portion 120b is located in the longitudinal section 120d of the L-shaped plate-like housing 120, while the extended groove portion 120c extends from the main groove portion 120b to the transverse section 120e of the L-shaped plate-like housing 120. The retaining spring assembly 122 is correspondingly installed in the engagement groove 120a, and the cover member correspondingly covers the engagement groove 120a to confine the retaining spring assembly 122 in the plate-like housing 120.

[0047] like Figure 5As shown, the plate-like shell member 120 is further provided with a slot 122f for engaging the ridge 100a on the bracket 10. Specifically, the slot 122f is disposed on a pair of opposing side surfaces of the plate-like shell member 120, below the engaging groove 120a and near the bottom of the plate-like shell member 120. The slot 122f includes an inlet portion 122g and a positioning portion 122h located further inward relative to the inlet portion 122g. The inlet portion 122g has a larger diameter in the longitudinal direction than the positioning portion 122h. The inlet portion 122g is provided primarily to facilitate insertion of the plate-like shell member 120 into the receiving groove 106a of the bracket 10. The positioning portion 122h extends from the inlet portion 122g toward the transverse section 120e of the plate-like shell member 120. The positioning portion 122h has a shape that substantially conforms to the ridge 100a of the bracket 10. The provision of this type of positioning portion 122h facilitates the engagement of the plate-like shell 120 of the terminal body 12 with the ridge 100a to the receiving groove 106a of the bracket 10. It also prevents the plate-like shell 120 (i.e., the terminal body 12) from disengaging from the bracket 10 in the height direction of the bracket 10 (this direction can also be considered the direction of the longitudinal section 120d of the plate-like shell 120 after it is engaged with the bracket 10). The design of the slot 122f makes the installation of the secondary terminal relative to the bracket 10 more convenient and quick.

[0048] See again Figure 5 At least a first limiting member is provided on the longitudinal section 120d of the plate-shaped shell 120. Figure 5 As shown, the first limiting member is longitudinally distributed on the narrow side of the longitudinal section 120d facing the accommodating groove 106a. As can be seen from the figure, the first limiting member 120f can be configured as a hook so that it can engage with the engagement hole 102c, allowing the plate-like shell 120 to be positioned on the bracket 10 to prevent the terminal body 12 from disengaging from the accommodating groove 106a along the length direction of the accommodating groove 106a, thereby more securely positioning the secondary terminal on the bracket 10. Those skilled in the art will appreciate that the number and position of the limiting members can be adjusted as needed. A second limiting member 120g is also provided on the longitudinal section 120d of the plate-like shell 120. The second limiting member 120g is longitudinally arranged below the first limiting member 120f and abuts the back plate 102, thereby limiting the movement of the terminal body 12 in the width direction of the accommodating cavity 106.

[0049] Figure 6 This is a three-dimensional diagram of the spring assembly 122 of the secondary terminal assembly 1 provided by the present invention. Figures 4 to 6As shown, the circlip assembly 122 includes a main member 122a and an extension member 122b engaged therewith. The main member 122a is received in the main groove, while the extension member 122b is partially received in the main groove to engage the main member 122a, while the remaining portion extends from the main groove into the extension groove portion 120c. Advantageously, the portion of the extension member 122b engaging the main member 122a is arranged substantially perpendicular to the transverse section 120e of the plate-like housing 120. The main member 122a of the circlip is annular and is located in the engagement groove 120a on the side of the extension member 122b facing away from the transverse section 120e.

[0050] Preferably, see Figure 6 The extension member 122b includes a first section 122c, a second section 122d, and a transition section 122e located therebetween. The first section 122c engages the main member 122a and is arranged substantially parallel to the longitudinal section 120d. The second section 122d is arranged substantially perpendicular to the first section 122c, and the transition section 122e is arranged at an angle relative to the first section 122c.

[0051] like Figure 6 As shown, the circlip assembly 122 on the left is referred to as the first circlip assembly 122, and the circlip assembly 122 on the right is referred to as the second circlip assembly 122. The structures of the extension piece 122b of the first circlip assembly 122 and the extension piece 122b of the second circlip assembly 122 are slightly different, primarily in the angle formed by their transition sections 122e relative to the first section 122c. For the extension piece 122b of the first circlip assembly, its transition section 122e is arranged at an obtuse angle relative to its first section 122c, while for the extension piece 122b of the second circlip assembly, its transition section 122e is arranged at an acute angle relative to its first section 122c. The different structural designs of the extension pieces 122b in the two retaining spring groups 122 and the positional arrangement of the main body piece 122a mentioned above (correspondingly, the corresponding structure of the engaging groove 120a in the plate-like shell 120) enable their arrangement to meet the performance requirements and spatial distance limitations, while also being accommodated in the smaller plate-like shell 120, thereby forming a new type of secondary terminal that can achieve structural miniaturization.

[0052] Figure 7 This is a three-dimensional diagram of the secondary terminal assembly 1 provided by the present invention applied to a circuit breaker 2, wherein part of the structure of the circuit breaker 2 is removed for easier observation; Figure 8 This is a three-dimensional diagram of the secondary terminal assembly 1 provided by the present invention applied to a circuit breaker 2 .

[0053] Figures 7 to 8The figure shows the secondary terminal assembly 1 installed on the circuit breaker 2. Compared with the prior art, due to the reasonable structural improvement of the bracket 10 and the secondary terminal, the overall volume of the secondary terminal assembly 1 is significantly reduced, and the height is even reduced by half, successfully achieving the goal of structural miniaturization of the secondary terminal assembly 1. Figure 8 It can be seen that when applied to the circuit breaker 2, the secondary terminal assembly 1 is basically flush with the appearance height of the circuit breaker 2.

[0054] The present invention provides a secondary terminal assembly 1 having a novel bracket 10 and secondary terminal structure. This assembly has the advantages of a simple and reasonable structural design, appropriate positioning, and ease of assembly and disassembly. Furthermore, the assembly is miniaturized while still meeting product performance requirements. Furthermore, the miniaturized secondary terminal assembly 1 saves on manufacturing materials (such as copper and other suitable materials), thereby reducing product costs.

[0055] While the present invention has been described in detail using only a limited number of embodiments, it should be readily understood that the present invention is not limited to such disclosed embodiments. Rather, the present invention may be modified by incorporating any number of variations, alterations, substitutions, or equivalents not heretofore described, yet commensurate with the spirit and scope of the present invention. Furthermore, while various different embodiments of the present invention have been described, it should be understood that aspects of the present invention may include only some of the embodiments. Accordingly, the present invention is not to be considered limited by the foregoing description, but only by the appended claims.

Claims

1. A secondary terminal assembly (1) configured for use in a circuit breaker (2), characterized in that: include: A bracket (10), which is configured to have a substantially L-shaped accommodating cavity (106), the accommodating cavity (106) extending along the length direction of the bracket (10), and the accommodating cavity (106) defining a plurality of accommodating grooves (106a) extending along the width direction of the bracket (10) at the bottom of the bracket (10); The secondary terminal comprises a plurality of plate-shaped terminal bodies (12), wherein the plurality of terminal bodies (12) are adjacent to each other and are respectively and correspondingly inserted into the receiving grooves (106a) of the bracket (10).

2. The secondary terminal assembly (1) according to claim 1, characterized in that: The terminal body (12) comprises: A plate-like shell (120) which is constructed in a substantially L-shape and defines a pair of engaging grooves (120a) disposed substantially parallel to each other, wherein the engaging groove (120a) comprises a main groove portion (120b) and an extension groove portion (120c), wherein the main groove portion (120b) is located in a longitudinal section (120d) of the L-shaped plate-like shell (120), and the extension groove portion (120c) extends from the main groove portion (120b) to a transverse section (120e) of the L-shaped plate-like shell (120); A retaining spring assembly (122) is correspondingly mounted in the engagement groove (120a), the retaining spring assembly (122) comprising a main body member (122a) and an extension member (122b) engaged therewith, the main body member (122a) being accommodated in the main body groove portion (120b), the extension member (122b) being constructed so that a portion thereof in the main body groove portion (120b) engages with the main body member (122a), while the remaining portion extends and is accommodated in the extension groove portion (120c), and the portion of the extension member (122b) engaging with the main body member (122a) is substantially perpendicular to the transverse section (120e) of the plate-like shell member (120).

3. The secondary terminal assembly (1) according to claim 2, characterized in that: The main body (122a) of the retaining spring assembly is configured in a ring shape and is placed in a direction away from the extension piece (122b) along the extending direction of the transverse section (120e); The extension piece (122b) of the retaining spring assembly comprises: a first section (122c) joined to the main body (122a) and arranged parallel to the longitudinal section (120d); a second section (122d) extending away from the main body (122a) and arranged parallel to the transverse section (120e), the second section (122d) being arranged substantially perpendicular to the first section (122c); A transition section (122e) is located between the first section (122c) and the second section (122d) and is arranged at an angle relative to the first section (122c).

4. The secondary terminal assembly (1) according to claim 3, characterized in that: The retaining spring group includes a first retaining spring group and a second retaining spring group, wherein the first retaining spring group is located on a side of the longitudinal section (120d) away from the transverse section (120e), and the second retaining spring group is located on a side of the longitudinal section (120d) close to the transverse section (120e), wherein the first section (122c) of the extension piece (122b) of the first retaining spring group is arranged at an obtuse angle relative to its transition section (122e), and the first section (122c) of the extension piece (122b) of the second retaining spring group is arranged at an acute angle relative to its transition section (122e).

5. The secondary terminal assembly (1) according to claim 2, characterized in that: The accommodation groove (106a) is defined by two adjacent substantially inverted L-shaped ridges (100a) to form a substantially inverted T-shaped structure.

6. The secondary terminal assembly (1) according to claim 5, characterized in that: The plate-shaped shell (120) is provided with slots (122f) for engaging the convex ridge (100a) on a pair of opposite side surfaces thereof. The slots (122f) are located below the engaging groove (120a) and are arranged close to the bottom of the plate-shaped shell (120).

7. The secondary terminal assembly (1) according to claim 2, characterized in that: Two pairs of engagement grooves (120a) are defined inside the plate-shaped shell, wherein each pair of engagement grooves (120a) is arranged on one side of the plate-shaped shell, and the two pairs of engagement grooves (120a) are spaced apart from each other.

8. The secondary terminal assembly (1) according to claim 5, characterized in that: The support (10) comprises: A bottom plate (100), which is provided with the convex ridge (100a) for constructing the accommodating groove (106a) on the inner side defining the accommodating cavity (106), and the bottom plate (100) is provided with a joint portion (100b) on the outer side, and the joint portion (100b) is configured to be detachably joined to the circuit breaker (2) by using a joint piece; a back plate (102) which is perpendicular to the bottom plate (100) and arranged along the length direction of the bottom plate (100), the back plate (102) being provided with a first protrusion (102a) on the outer side for engaging with a socket provided at a corresponding position of the circuit breaker (2), thereby allowing the back plate (102) to be detachably engaged with the circuit breaker (2); A pair of side plates (104) are located on both sides of the bottom plate (100) and are arranged vertically relative to the bottom plate (100) and the back plate (102); each of the side plates (104) is provided with a second protrusion (104a) on the outer side to cooperate with a block provided at a corresponding position of the circuit breaker (2), thereby limiting the bracket (10) relative to the circuit breaker (2).

9. The secondary terminal assembly (1) according to claim 8, characterized in that: At least a first limiting member (120f) is provided on the plate-like shell member (120), and the first limiting member (120f) is located on the narrow side of the longitudinal section (120d) away from the transverse section (120e). The top of the back plate (102) has a flange (102b) extending toward one side of the accommodating cavity (106), and the flange (102b) is provided with an engaging hole (102c). The first limiting member (120f) is configured to be able to engage with the engaging hole (102c), so that the plate-like shell member can be positioned to the bracket to prevent the terminal body (12) from being separated from the accommodating groove along the length direction of the accommodating groove.

10. The secondary terminal assembly (1) according to claim 9, characterized in that: A second limiting member (120g) is also provided on the longitudinal section (120d) of the plate-shaped shell member (120). The second limiting member (120g) is arranged below the first limiting member along the longitudinal direction and abuts against the back plate (102) to limit the movement of the terminal body (12) in the width direction of the accommodating cavity (106).

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