Busbar assembly

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a busbar assembly, which comprises a base, a shell and a current-carrying bar, the shell is buckled on the base and is clamped with a clamping hole through a buckle structure, the assembly is convenient and firm, and interphase short circuit of products connected with the busbar assembly can be effectively prevented; the plurality of current-carrying rows are limited in a space defined by the base and the shell, and each current-carrying row comprises a current-conducting plate and a wiring terminal connected to the current-conducting plate; the wiring terminals of the plurality of current-carrying rows are arranged in a column; one of the base and the shell is provided with a plurality of slots in one-to-one correspondence with the conductive plates; and each current-conducting plate is inserted into the corresponding slot in a sliding manner along the arrangement direction of the wiring terminals. By adjusting the positions of the conductive plates in the slots, the busbar assembly can be matched and connected with products with different phase distances, the phase distance difference between the same products can be compensated, errors caused by factors such as manufacturing and assembling can be eliminated, and connection between the busbar assembly and the products can be smoothly completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus technical field especially relates to a busbar assembly. BACKGROUND

[0002] In electrical switch cabinet usually uses busbar to connect multiple lines, makes the cabinet structure integration degree higher and the layout is more reasonable, such as through busbar connects multiple switch electric appliances (such as motor protector, circuit breaker etc.

[0003] The existing busbar includes base, shell and current-carrying row for wiring, base and shell are tightly fitted through interference, current-carrying row is installed in the space defined by base and shell, and, to ensure that current-carrying row is fixed firmly, it is fixed relative to base and shell under the limiting action of base shell.

[0004] The prior art has the following defects: on the one hand, interference fit assembly needs to use fixture to install in place, and it is difficult to disassemble, it is not easy to replace the internal current-carrying row, and when the busbar is used in the environment with poor working conditions, such as frequent impact vibration, the base and shell are easy to loosen, resulting in reduced insulation performance between products, and in severe cases, short circuit failure. On the other hand, the existing busbar cannot match switch electric appliance products with different phase distances, and cannot match the phase distance difference between the same products due to manufacturing, assembly and other reasons, and the installation fault tolerance is low.

[0005] Therefore, there is an urgent need for a busbar assembly to solve the above problems in the prior art. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of busbar assembly, and its base and shell are easy to disassemble and can ensure connection stability, prevent loosening, and it can match switch electric appliance products with different phase distances and compensate the phase distance difference between the same products.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] Provide a kind of busbar assembly, comprising:

[0009] Base;

[0010] Shell, buckling in the base, one of the shell and the base is provided with buckle structure, the other is provided with the buckle hole of buckle structure is engaged;

[0011] Current-carrying row, is provided with multiple and is limited in the space surrounded by the base and the shell, the current-carrying row includes conductive plate and the terminal of wiring connected on the conductive plate;Multiple terminal of the current-carrying row is arranged in a column;

[0012] One of the base and the shell is provided with a plurality of slots corresponding to the conductive plates; each of the conductive plates is slidably inserted into the corresponding slot along the arrangement direction of the terminal.

[0013] As an optional scheme of the busbar assembly provided by the utility model, the base comprises a bottom plate and a surrounding plate protruding from the bottom plate, a plurality of buckle structures are arranged on the outer wall of the surrounding plate in the circumferential direction, the shell cover is arranged on the surrounding plate and abuts against the bottom plate, and a plurality of clamping holes corresponding to the buckle structures are arranged on the shell.

[0014] As an optional scheme of the busbar assembly provided by the utility model, the shell is provided with at least one positioning protrusion, and at least one positioning groove is arranged on the outer side of the surrounding plate of the bottom plate, and the positioning protrusion is clamped in the positioning groove.

[0015] As an optional scheme of the busbar assembly provided by the utility model, the buckle structure and the positioning groove are arranged opposite to each other in the buckling direction, at least one limiting boss is arranged on the outer wall of the surrounding plate, and the at least one limiting boss is located between the buckle structure and the positioning groove arranged opposite to each other; the buckling direction is the direction in which the shell and the base are buckled;

[0016] The clamping hole and the positioning protrusion are arranged opposite to each other in the buckling direction, at least one limiting groove is arranged on the inner wall of the shell, and the at least one limiting groove is located between the clamping hole and the positioning protrusion arranged opposite to each other;

[0017] The limiting boss and the limiting groove are clamped.

[0018] As an optional scheme of the busbar assembly provided by the utility model, the side, away from the bottom plate, of the surrounding plate is provided with a first embedding part, and the first embedding part extends into the shell; the inner wall of the shell is provided with a second embedding part; and the first embedding part is provided with an embedding groove clamped with the second embedding part.

[0019] As an optional scheme of the busbar assembly provided by the utility model, the inner wall of the shell is provided with at least one first supporting boss, and the end face, away from the bottom plate, of the surrounding plate abuts against the first supporting boss.

[0020] As an optional scheme of the busbar assembly provided by the utility model, at least one second supporting boss is arranged on the first supporting boss, a groove for clamping the surrounding plate is formed between the second supporting boss and the first supporting boss, and the opposite two side faces of the at least one conductive plate abut against the bottom plate and the second supporting boss respectively.

[0021] As optional scheme of the busbar assembly provided by the utility model, the base comprises a bottom plate, a surrounding plate and multiple limiting plates protruding on the bottom plate, the surrounding plate is surrounded outside the limiting plates, and the shell cover is arranged outside the surrounding plate.

[0022] The surrounding plate and the multiple limiting plates surround multiple slots arranged side by side, and the arrangement direction of the multiple slots is arranged at an angle with the arrangement direction of the wiring terminals.

[0023] As optional scheme of the busbar assembly provided by the utility model, the end face of the limiting plate away from the bottom plate is provided with multiple first limiting protrusions, the multiple first limiting protrusions are distributed at intervals along the sliding direction of the conductive plate, and a first clamping groove is formed between adjacent first limiting protrusions and the limiting plate.

[0024] The inner wall of the shell facing the limiting plate is provided with multiple second limiting protrusions and multiple second clamping grooves distributed alternately; and the bottom wall of the second clamping groove is provided with an outlet for penetrating the wiring terminal.

[0025] The first limiting protrusion is clamped with the second clamping groove, and the second limiting protrusion is clamped with the first clamping groove.

[0026] As optional scheme of the busbar assembly provided by the utility model, one of the base and the shell is provided with a positioning column, and the other is provided with a positioning cylinder, and the positioning column is inserted into the positioning cylinder.

[0027] And / or,

[0028] The wiring terminal is used for electrical connection with the switch electric appliance.

[0029] The outer wall of the shell is recessed with a first avoiding groove for avoiding the protruding part between phases of the switch electric appliance, and / or the outer wall of the shell is recessed with a second avoiding groove for avoiding the protruding part between adjacent switch electric appliances.

[0030] The utility model has the advantages of:

[0031] The utility model provides a busbar assembly, because its base and shell are buckled and are connected through buckle structure and card hole buckle together, can complete assembly when the base and shell are directly buckled together after alignment, and because the hooking and clamping effect between buckle structure and card hole can ensure that the base and shell are connected firmly, prevent loosening, further avoid the current-carrying bar limited between the base and the shell to move, can effectively prevent the product connected with the busbar assembly from phase-to-phase short circuit, improve the insulation performance of the product and the connecting position of the busbar assembly. Moreover, because the conductive plate of multiple current-carrying bars is slidably inserted into the corresponding slot along the arrangement direction of the terminal, when matching the interval between the adjacent two phases of the product, the conductive plate can be adaptively adjusted to make the conductive plate drive the corresponding terminal to approach or move away from each other, realize the interval adjustment between the terminals, further make the interval match the phase interval of the connected product, realize the connection between the terminals of the multiple current-carrying bars and the corresponding product, therefore, by adjusting the position of the conductive plate in the slot, the busbar assembly can be matched and connected with the product with different phase intervals, and the phase interval difference between the same products can be compensated, the error caused by manufacturing, assembly and other factors can be eliminated, and the connection between the busbar assembly and the product can be successfully completed. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments of the utility model, and obviously, the following described drawings are only some embodiments of the utility model, and for the ordinary skilled person in the art, other drawings can be obtained according to the drawings without paying creative labor.

[0033] Figure 1 It is the first axonometric view of the busbar assembly provided by the specific embodiment of the utility model;

[0034] Figure 2 It is the second axonometric view of the busbar assembly provided by the specific embodiment of the utility model;

[0035] Figure 3 It is the exploded schematic view of the busbar assembly provided by the specific embodiment of the utility model;

[0036] Figure 4 It is the first cross-sectional view of the busbar assembly provided by the specific embodiment of the utility model;

[0037] Figure 5 It is the second cross-sectional view of the busbar assembly provided by the specific embodiment of the utility model;

[0038] Figure 6 It is the third cross-sectional view of the busbar assembly provided by the specific embodiment of the utility model;

[0039] Figure 7 is a fourth cross-sectional view of the busbar assembly provided by the embodiment of the utility model;

[0040] Figure 8 is a first axonometric view of the housing provided by the embodiment of the utility model;

[0041] Figure 9 is a second axonometric view of the housing provided by the embodiment of the utility model;

[0042] Figure 10 is a plan view of the base provided by the embodiment of the utility model;

[0043] Figure 11 is a fifth cross-sectional view of the busbar assembly provided by the embodiment of the utility model.

[0044] In the drawings:

[0045] 1, base; 2, housing; 3, current-carrying bar;

[0046] 10, slot; 11, bottom plate; 12, coaming; 13, buckle structure; 14, limiting boss; 15, first fitting part; 16, limiting plate; 17, first limiting protrusion; 18, first clamping groove; 19, positioning cylinder;

[0047] 111, positioning groove;

[0048] 151, fitting groove;

[0049] 21, clamping hole; 22, positioning protrusion; 23, limiting groove; 24, second fitting part; 26, first supporting boss; 27, second supporting boss; 28, recess; 29, second limiting protrusion; 210, second clamping groove; 220, positioning column; 230, first avoiding groove; 240, second avoiding groove; 250, outlet; 260, reinforcing boss; 270, extension plate;

[0050] 31, conductive plate; 32, wiring terminal;

[0051] 321, connecting plate; 322, wiring head. DETAILED DESCRIPTION

[0052] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0053] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two elements of the interaction relationship.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0054] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0055] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0056] The term "and / or" in the embodiment is only a description of the association relationship of the associated object, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together and B alone.In addition, the character " / " in the utility model generally represents that the front and rear associated objects are in an "or" relationship.

[0057] In the embodiments of the utility model, the same reference signs represent the same parts, and for brevity, the detailed description of the same parts is omitted in different embodiments.

[0058] As Figure 1 , Figure 2 And Figure 3As shown, the embodiment provides a busbar assembly, which comprises a base 1, a shell 2 and a plurality of busbars 3. The shell 2 is assembled with the base 1 to limit the busbars 3. The busbar assembly is used to connect with switch electric products, such as a plurality of motor protectors or a plurality of circuit breakers, to improve the integration degree of the circuit. The base 1 and the shell 2 of the busbar assembly are convenient to disassemble and assemble and can ensure the connection stability and prevent loosening. In addition, the busbar assembly can match switch electric products with different phase spacings and compensate the phase spacing difference between the same products.

[0059] Wherein, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the shell 2 is buckled on the base 1 and surrounds a space with the base 1. One of the shell 2 and the base 1 is provided with a buckle structure 13, and the other is provided with a clamping hole 21 matched with the buckle structure 13. The busbars 3 are arranged in the space surrounded by the base 1 and the shell 2 and comprise a plurality of conductive plates 31 and a plurality of connecting terminals 32 connected to the conductive plates 31. The connecting terminals 32 of the busbars 3 are arranged in a row. One of the base 1 and the shell 2 is provided with a plurality of insertion slots 10 corresponding to the conductive plates 31. Each conductive plate 31 is slidably inserted into the corresponding insertion slot 10 along the arrangement direction of the connecting terminals 32.

[0060] The busbar assembly provided by the embodiment is buckled between the base 1 and the shell 2 and is connected through the buckle structure 13 and the clamping hole 21. When the base 1 and the shell 2 are aligned, they can be directly buckled together to complete the assembly. The hooking and clamping effect between the buckle structure 13 and the clamping hole 21 can ensure the connection between the base 1 and the shell 2 and prevent loosening. In addition, the conductive plates 31 of the busbars 3 are slidably inserted into the corresponding insertion slots 10 along the arrangement direction of the connecting terminals 32. When matching the spacing between the adjacent two phases of the product, the conductive plates 31 can be adaptively adjusted to make the conductive plates 31 drive the corresponding connecting terminals 32 to approach or move away from each other, so as to adjust the spacing between the connecting terminals 32. In this way, the spacing can be matched with the phase spacing of the connected product, and the connecting terminals 32 of the busbars 3 can be connected with the corresponding product. Therefore, by adjusting the position of the conductive plates 31 in the insertion slots 10, the busbar assembly can be matched and connected with the products with different phase spacings and can compensate the phase spacing difference between the same products, eliminate the errors caused by manufacturing and assembly and successfully complete the connection with the products.

[0061] Exemplarily, the base 1 and the shell 2 are integrally formed structures and are made of insulating materials, such as plastic materials integrally injection molded.

[0062] For a clearer description, the X direction, the Y direction and the Z direction are introduced for illustration, wherein the X direction is the arrangement direction of the terminal 32 on the conductor plate and is also the length direction of the busbar assembly, the Y direction is the clamping direction of the base 1 and the shell 2, and the Z direction is the arrangement direction of the conductor plate 31 of the plurality of busbars 3. The X direction, the Y direction and the Z direction are perpendicular to each other.

[0063] Taking the busbar assembly as a three-phase busbar for example, it includes three busbars 3, and the conductor plates 31 of the three busbars are distributed along the Z direction. Each conductor plate 31 has three terminals 32 distributed along the X direction. Referring to Figure 3 , the terminal 32 includes a connecting plate 321 and a terminal head 322, the terminal head 322 is connected with the conductor plate 31 through the connecting plate 321, the connecting plate 321 includes at least two plate segments arranged at an angle, and the terminal head 322 is U-shaped. The connecting plate 321 of each busbar 3 is different in shape and is connected with the terminal head 322 at an obtuse angle, so that the terminal heads 322 of the three busbars 3 are arranged in a column along the X direction, that is, all the terminal heads 322 are in the same plane to be connected with the corresponding phase of the switchgear product.

[0064] Combined with Figure 2 , the terminal 32 is divided into three groups of left, middle and right, each group including three terminals 32, and the three groups of terminals 32 are connected with three switchgear products respectively. The terminal heads 322 of the three terminals 32 in each group are connected with A, B and C three phases of the same product respectively.

[0065] Specifically referring to Figure 4 , the size of the slot 10 along the X direction is greater than the size of the conductor plate 31 along the X direction, so that the conductor plate 31 can drive the plurality of terminals 32 to slide along the X direction to adjust the spacing between the terminals 32.

[0066] Further, referring to Figure 2 , the shell 2 is provided with an outlet 250 corresponding to each terminal 32, and the terminal 32 is slidably fitted in the corresponding outlet 250. Specifically, the connecting plate 321 penetrates the outlet 250, and the terminal head 322 is located outside the outlet 250 to realize wiring. The connecting plate 321 can slide along the X direction in the outlet 250 for adjustment. Alternatively, the connecting plate 321 of the terminal 32 can be matched with the edge of the outlet 250 by bending the position to prevent the terminal 32 from moving away from the outlet 250.

[0067] Referring to Figure 3The base 1 comprises a bottom plate 11 and a surrounding plate 12 protruding from the bottom plate 11. The outer wall of the surrounding plate 12 is provided with a plurality of buckle structures 13 in the circumferential direction. The shell 2 is arranged on the surrounding plate 12 and abuts against the bottom plate 11 to form a space for limiting the current-carrying row 3 between the bottom plate 11 and the surrounding plate 12. The shell 2 is provided with a plurality of clamping holes 21 corresponding to the buckle structures 13. Specifically, the shell 2 abuts against and aligns with the edge region of the bottom plate 11, which is good in appearance quality and facilitates positioning during assembly of the base 1 and the shell 2. The plurality of buckle structures 13 and the plurality of clamping holes 21 correspond to each other to ensure the fastening firmness of the base 1 and the shell 2 and prevent loosening in the case of frequent vibration and impact.

[0068] Further, in combination with Figure 5 and Figure 6 , the surrounding plate 12 of the base 1 is provided with at least one buckle structure 13 on each of the two sides opposite in the X direction and the two sides opposite in the Z direction. The shell 2 is provided with at least one clamping hole 21 on each of the two sides opposite in the X direction and the two sides opposite in the Z direction, so that the connection strength of the base 1 and the shell 2 in the peripheral direction is uniform.

[0069] For example, one buckle structure 13 is arranged on each of the two sides opposite in the X direction of the surrounding plate 12 of the base 1, and two buckle structures 13 are arranged on each of the two sides opposite in the Z direction of the surrounding plate 12, so that the plurality of buckle structures 13 are uniformly distributed. Correspondingly, the number and distribution of the clamping holes 21 on the shell 2 correspond to the plurality of buckle structures 13.

[0070] Optionally, as Figure 1 , Figure 2 and Figure 3 , the shell 2 is provided with at least one positioning protrusion 22, and the bottom plate 11 is provided with at least one positioning groove 111 outside the surrounding plate 12. The positioning protrusion 22 is clamped in the positioning groove 111 to further improve the stability of the base 1 and the shell 2 after fastening and improve the positioning accuracy of the two, thereby reducing the possibility of deviation between the two during work. When the buckle structure 13 is clamped in the clamping hole 21, the positioning protrusion 22 is also clamped in the positioning groove 111.

[0071] Further, the bottom plate 11 is provided with a plurality of positioning grooves 111 in the circumferential direction, and the shell 2 is provided with a plurality of positioning protrusions 22 in the circumferential direction. The plurality of positioning protrusions 22 are correspondingly clamped in the plurality of positioning grooves 111 to further improve the fastening firmness of the base 1 and the shell 2 after fastening.

[0072] In this embodiment, referring to Figure 3The number of the buckle structures 13 is consistent with the number of the positioning grooves 111, and the plurality of buckle structures 13 and the plurality of positioning grooves 111 are arranged opposite along the buckling direction (i.e. Y direction). The number of the clamping holes 21 is consistent with the number of the positioning protrusions 22, and the plurality of clamping holes 21 and the plurality of positioning protrusions 22 are arranged opposite along the buckling direction.

[0073] Further, referring to Figure 3 , the outer wall of the enclosing plate 12 is provided with at least one limiting boss 14, and the at least one limiting boss 14 is located between the buckle structure 13 and the positioning groove 111 arranged opposite along the Y direction. Referring to Figure 8 , the inner wall of the shell 2 is recessed with at least one limiting groove 23, and the at least one limiting groove 23 is located between the clamping hole 21 and the positioning protrusion 22 arranged opposite along the Y direction. When the buckle structure 13 is clamped with the corresponding clamping hole 21, the limiting boss 14 is clamped with the limiting groove 23 at the corresponding position, thereby further improving the stability at the clamping position. In the embodiment, the number of the limiting boss 14 and the limiting groove 23 is not limited.

[0074] Optionally, a plurality of insertion slots 10 are arranged on the base 1. Referring to Figure 3 , Figure 6 and Figure 10 , the base 1 further comprises a plurality of limiting plates 16 protruding from the bottom plate 11, and the enclosing plate 12 is arranged outside the limiting plates 16. The enclosing plate 12 and the plurality of limiting plates 16 enclose the plurality of insertion slots 10 arranged side by side, and the arrangement direction of the plurality of insertion slots 10 is arranged at an angle with the arrangement direction of the terminal 32. In the embodiment, the arrangement direction of the plurality of insertion slots 10 is the Z direction, the arrangement direction of the terminal 32 is the X direction, and the two directions are arranged at an angle of ninety degrees.

[0075] Referring to Figure 10 , the enclosing plate 12 comprises two first side plates arranged opposite along the Z direction and two second side plates arranged opposite along the X direction, and the two first side plates and the two second side plates are connected to form the enclosing plate 12. The plurality of limiting plates 16 comprises two long plates extending along the X direction, and the two long plates and the two first side plates are separated to form three regions of the insertion slots 10. Short plates are connected between the first side plates and the long plates and between adjacent long plates to define the insertion slots 10.

[0076] Further, referring to Figure 7 and Figure 9 , the inner wall of the shell 2 is provided with at least one first supporting boss 26, and the end surface of the enclosing plate 12 away from the bottom plate 11 is abutted to the first supporting boss 26. When the base 1 and the shell 2 are buckled, the positioning can be realized, and the stability of the assembled base 1 and shell 2 is improved. Specifically, a plurality of first supporting bosses 26 are arranged corresponding to the enclosing plate 12 to improve the supporting stability.

[0077] Continuing to refer to Figure 7 and Figure 9The second supporting boss 27 is arranged on the first supporting boss 26, and a groove 28 for clamping the surrounding plate 12 is arranged between the second supporting boss 27 and the first supporting boss 26. The opposite sides of the at least one conductive plate 31 are respectively abutted against the bottom plate 11 and the second supporting boss 27. Specifically, the opposite sides of the two conductive plates 31 located at the two ends are respectively abutted against the bottom plate 11 and the second supporting boss 27, so that the bottom plate 11 and the second supporting boss 27 can limit the conductive plate 31 in the Y direction, and prevent the current-carrying row 3 from moving in the Y direction.

[0078] Referring to Figure 9 The first supporting boss 26 is connected with the inner bottom wall and the inner side wall of the shell 2, and the inner side wall of the shell 2 is provided with a reinforcing boss 260 at the position of the first supporting boss 26, and the first supporting boss 26 is connected with the reinforcing boss 260.

[0079] Further, the first supporting boss 26 provided with the second supporting boss 27 is opposite to the clamping hole 21, which can improve the sealing performance of the area where the clamping hole 21 is located.

[0080] Referring to Figure 3 The end surface of the limiting plate 16 away from the bottom plate 11 is provided with a plurality of first limiting protrusions 17, and the plurality of first limiting protrusions 17 are distributed at intervals along the sliding direction (i.e., the X direction) of the conductive plate 31. The first limiting protrusions 17 and the limiting plate 16 between adjacent first limiting protrusions 17 form a first clamping groove 18. Figure 8 and Figure 9 The inner wall of the shell 2 facing the limiting plate 16 is provided with a plurality of second limiting protrusions 29 and a plurality of second clamping grooves 210 which are alternately distributed. Figure 4 The first limiting protrusion 17 corresponds to and clamps the second clamping groove 210, and the second limiting protrusion 29 corresponds to and clamps the first clamping groove 18, which further improves the positioning accuracy of the base 1 and the shell 2, and improves the stability after assembly.

[0081] Further, the outlet 250 is arranged on the bottom wall of the second clamping groove 210, so that the adjacent connecting terminals 32 are separated by the second limiting protrusion 29, and the insulation performance between the adjacent connecting terminals 32 is improved. At the same time, since the first limiting protrusion 17 on the limiting plate 16 is clamped between the second grooves 28, the creeping phenomenon can be further prevented, thereby effectively avoiding the problem of phase-to-phase short circuit.

[0082] As Figure 5 and Figure 9As shown, one of the base 1 and the shell 2 is provided with a positioning column 220, and the other is provided with a positioning cylinder 19. The positioning column 220 is inserted into the positioning cylinder 19, and the top end of the positioning column 220 is tapered, so as to guide and position the base 1 and the shell 2 during assembly. Further, the positioning cylinder 19 is provided on the bottom plate 11, and the positioning column 220 is provided on the second limiting boss 14, so that the end face of the positioning cylinder 19 away from the bottom plate 11 can abut against the second limiting boss 14.

[0083] Optionally, referring to Figure 3 , Figure 4 and Figure 11 , the side of the baffle plate 12 away from the bottom plate 11 is provided with a first fitting part 15 extending into the shell 2; the inner wall of the shell 2 is provided with a second fitting part 24; the first fitting part 15 is provided with a fitting groove 151 clamping the second fitting part 24. The fitting of the first fitting part 15 and the second fitting part 24 can further prevent the base 1 and the shell 2 from shaking relative to each other after assembly.

[0084] More specifically, the first fitting part 15 is arranged in the Y direction opposite to the buckle structure 13 of the side of the base 1, and the second fitting part 24 is arranged in the Y direction opposite to the buckle hole 21 of the side of the shell 2, so that the fitting of the first fitting part 15 and the second fitting part 24 can improve the sealing performance at the position of the buckle hole 21.

[0085] In this embodiment, the busbar assembly is a three-phase busbar, which includes a plurality of groups of terminal clamps 32 distributed along the X direction, each group including three terminal clamps 32, and the three terminal clamps 32 in each group are electrically connected to the A, B and C phases of the same switch device. The switch device is, for example, a motor protector.

[0086] Referring to Figure 2 , the outer wall of the shell 2 is recessed with a first avoiding groove 230 for avoiding the protruding part between the phases of the switch device. The protruding part between the phases includes an insulation rib on the switch device, and the first avoiding groove 230 is used for avoiding the insulation rib, and through cooperation with the insulation rib, the creepage distance between the phases of the switch device is increased, the insulation performance is improved, and the inter-phase short circuit is prevented.

[0087] Further, the outer wall of the shell 2 is recessed with a second avoiding groove 240 for avoiding the protruding part between the adjacent switch devices. The protruding part between the adjacent switch devices includes an insulation rib between the adjacent two switch devices (in addition to the insulation rib, the side hanging auxiliary between the adjacent two switch devices can also be included), and the second avoiding groove 240 is used for avoiding the insulation rib (or the insulation rib and the side hanging auxiliary) between the switch devices, so as to improve the insulation performance between the adjacent switch device products.

[0088] With reference to Figure 2 The outer wall of the shell 2 is provided with an extension plate 270 on one side of the outlet 250, which can support and limit the terminal 32 drawn out through the outlet 250, preventing the terminal 32 from being deformed.

[0089] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A busbar assembly, characterized in that, The utility model relates to a base (1); The shell (2) is buckled to the base (1), one of the shell (2) and the base (1) is provided with buckle structure (13), the other is provided with the card hole (21) of buckle structure (13) with carding, The current-carrying row (3) is provided with a plurality of and is limited in the space surrounded by the base (1) and the shell (2), the current-carrying row (3) includes the conductive plate (31) and the terminal (32) connected on the conductive plate (31);The terminal (32) of a plurality of current-carrying rows (3) is arranged in a column; One of the base (1) and the shell (2) is provided with a plurality of insertion slots (10) corresponding to the conductive plate (31);Each conductive plate (31) is slidably inserted into the corresponding insertion slot (10) along the arrangement direction of the terminal (32). The base (1) includes a bottom plate (11) and a surrounding plate (12) protruding from the bottom plate (11), the outer wall of the surrounding plate (12) is provided with a plurality of buckle structures (13) in the circumferential direction, the shell (2) covers the surrounding plate (12) and abuts against the bottom plate (11), and the shell (2) is provided with a plurality of card holes (21) corresponding to the buckle structures (13).

2. The busbar assembly of claim 1, wherein, The shell (2) is provided with at least one positioning protrusion (22), and the bottom plate (11) is provided with at least one positioning groove (111) on the outer side of the surrounding plate (12), and the positioning protrusion (22) is clamped in the positioning groove (111).

3. The busbar assembly of claim 2, wherein, The buckle structure (13) and the positioning groove (111) are oppositely arranged in the buckling direction, at least one limiting boss (14) is arranged on the outer wall of the surrounding plate (12), and at least one limiting boss (14) is located between the oppositely arranged buckle structure (13) and the positioning groove (111);The buckling direction is the direction of buckling the shell (2) and the base (1); 4. The busbar assembly of claim 3, wherein, The card hole (21) and the positioning protrusion (22) are oppositely arranged in the buckling direction, and at least one limiting groove (23) is recessed on the inner wall of the shell (2), and at least one limiting groove (23) is located between the oppositely arranged card hole (21) and the positioning protrusion (22); The limiting boss (14) and the limiting groove (23) are clamped. The side of the surrounding plate (12) away from the bottom plate (11) is provided with a first embedding part (15) protruding into the shell (2), the inner wall of the shell (2) is provided with a second embedding part (24), and the first embedding part (15) is provided with an embedding groove (151) clamped with the second embedding part (24).

5. The busbar assembly of claim 2, wherein, The inner wall of the shell (2) is provided with at least one first supporting boss (26), and the end face of the surrounding plate (12) away from the bottom plate (11) abuts against the first supporting boss (26).

6. The busbar assembly of claim 2, wherein, ​ 7. The busbar assembly of claim 6, wherein, A second support boss (27) is protruded on at least one of the first support bosses (26), and a groove (28) for clamping the surrounding plate (12) is formed between the second support boss (27) and the first support boss (26). Opposite sides of at least one of the conductive plates (31) respectively abut against the bottom plate (11) and the second support boss (27).

8. The busbar assembly of any of claims 1-7, wherein, The base (1) comprises a bottom plate (11), a surrounding plate (12) and a plurality of limiting plates (16) protruded on the bottom plate (11), the surrounding plate (12) surrounds the limiting plates (16), and the shell (2) covers the surrounding plate (12). The surrounding plate (12) and the plurality of limiting plates (16) form a plurality of parallelly arranged insertion slots (10), and the arrangement direction of the plurality of insertion slots (10) is arranged at an angle with the arrangement direction of the wiring terminal (32).

9. The busbar assembly of claim 8, wherein, A plurality of first limiting protrusions (17) are protruded on the end face of the limiting plate (16) away from the bottom plate (11), the plurality of first limiting protrusions (17) are distributed at intervals along the sliding direction of the conductive plate (31), and a first clamping groove (18) is formed between adjacent first limiting protrusions (17) and the limiting plate (16). The inner wall of the shell (2) facing the limiting plate (16) is provided with a plurality of second limiting protrusions (29) and a plurality of second clamping grooves (210) alternately distributed in sequence; the bottom wall of the second clamping groove (210) is provided with an outlet (250) for penetrating the wiring terminal (32); The first limiting protrusion (17) is clamped with the second clamping groove (210), and the second limiting protrusion (29) is clamped with the first clamping groove (18).

10. The busbar assembly of any one of claims 1-7, wherein, One of the base (1) and the shell (2) is provided with a positioning column (220), and the other is provided with a positioning cylinder (19), and the positioning column (220) is inserted into the positioning cylinder (19); And / or, The wiring terminal (32) is used for electrical connection with the switch electric appliance; The outer wall of the shell (2) is recessed with a first avoiding groove (230) for avoiding the protruding part between phases of the switch electric appliance; and / or, the outer wall of the shell (2) is recessed with a second avoiding groove (240) for avoiding the protruding part between adjacent switch electric appliances.

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