An enclosed contactless busbar system

Abstract

The utility model provides a closed type contactless busbar system, including A phase busbar, B phase busbar, C phase busbar and zero row, A phase busbar includes A phase busbar main part and the A phase busbar connector of integrally formed in A phase busbar main part side part, B phase busbar includes B phase busbar main part and the B phase busbar connector of integrally formed in B phase busbar main part side part, C phase busbar includes C phase busbar main part and the C phase busbar connector of integrally formed in C phase busbar main part side part, zero row includes zero row main part and the zero row connector of integrally formed in zero row main part side part, its busbar main part and busbar connector between not using the connecting mode of lap joint, but directly using integrally formed structure, thus can solve the problem of the busbar connector and busbar body lap joint and the problem of the busbar heat increase of appearing lap joint not firm in prior art. The closed type contactless busbar system provided by the application can reduce the busbar heat, improve the firmness of busbar structure.

Description

Technical Field

[0001] This utility model relates to a busbar, specifically to a closed, contactless busbar system. Background Technology

[0002] With the improvement of living standards, residents are purchasing more and more household appliances, especially high-power appliances such as air conditioners, microwave ovens, induction cookers, rice cookers, electric heaters, and electric water heaters. The increased prevalence and frequency of use of these appliances directly leads to higher electricity consumption, resulting in increased temperature rise in power distribution equipment. The existing busbar system of power distribution equipment has a structure where the busbar connector and the busbar body are separate components. The connector and body overlap and are then connected by bolts. This structure has the following problems: the overlap between the connector and the body can easily become insecure, leading to increased heat generation in the busbar. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a closed, contactless busbar system that effectively solves the aforementioned problems.

[0004] The technical solution adopted in this utility model is as follows:

[0005] This utility model provides a closed-type contactless busbar system, including an A-phase busbar (1), a B-phase busbar (2), a C-phase busbar (3), and a neutral busbar (4);

[0006] The A-phase busbar (1) includes an A-phase busbar body (1.1) and an A-phase busbar connector (1.2) integrally formed on the side of the A-phase busbar body (1.1);

[0007] The B-phase busbar (2) includes a B-phase busbar body (2.1) and a B-phase busbar connector (2.2) integrally formed on the side of the B-phase busbar body (2.1);

[0008] The C-phase busbar (3) includes a C-phase busbar body (3.1) and a C-phase busbar connector (3.2) integrally formed on the side of the C-phase busbar body (3.1);

[0009] The zero-row (4) includes a zero-row body (4.1) and a zero-row connector (4.2) integrally formed on the side of the zero-row body (4.1).

[0010] Preferably, the A-phase busbar body (1.1), the B-phase busbar body (2.1), the C-phase busbar body (3.1), and the zero-phase busbar body (4.1) all include copper busbars and thermosetting insulating material covering the outer surface of the copper busbars.

[0011] Preferably, the plug portions of the A-phase busbar connector (1.2), the B-phase busbar connector (2.2), the C-phase busbar connector (3.2), and the neutral busbar connector (4.2) are arranged vertically downwards and on the same plane, forming a straight line.

[0012] Preferably, the A-phase busbar (1), the B-phase busbar (2), the C-phase busbar (3), and the zero-phase busbar (4) are arranged in parallel from back to front, and there is a gap between the A-phase busbar (1) and the B-phase busbar (2), between the B-phase busbar (2) and the C-phase busbar (3), and between the C-phase busbar (3) and the zero-phase busbar (4).

[0013] Preferably, the side of the B-phase busbar body (2.1) extends directly to form the B-phase busbar connector (2.2) which is coplanar with the B-phase busbar body (2.1);

[0014] The A-phase busbar body (1.1) is located behind the B-phase busbar body (2.1). The side of the A-phase busbar body (1.1) extends out a coplanar A-phase busbar connector (1.2) with the B-phase busbar connector (2.2) through a forward bending portion.

[0015] The C-phase busbar body (3.1) is located in front of the B-phase busbar body (2.1), and the side of the C-phase busbar body (3.1) extends the C-phase busbar connector (3.2) coplanar with the B-phase busbar connector (2.2) through a rearward bending portion;

[0016] The zero-row main body (4.1) is located in front of the C-phase busbar main body (3.1), and the side of the zero-row main body (4.1) extends into the zero-row connector (4.2) which is coplanar with the B-phase busbar connector (2.2) through a rearward bending portion.

[0017] Preferably, the zero-row (4) has a plurality of first insulating posts (4.3) on the side opposite to the C-phase busbar (3), and the C-phase busbar (3) has a plurality of first insulating positioning grooves (3.3) on the side opposite to the zero-row (4) that match the shape of the first insulating posts (4.3); the ends of the first insulating posts (4.3) are embedded in the first insulating positioning grooves (3.3) so that the zero-row (4) and the C-phase busbar (3) are positioned and maintained at a distance;

[0018] The C-phase busbar (3) has a plurality of second insulating posts (3.4) on the side opposite to the B-phase busbar (2), and the B-phase busbar (2) has a plurality of second insulating positioning grooves (2.3) on the side opposite to the C-phase busbar (3) that match the shape of the second insulating posts (3.4); the ends of the second insulating posts (3.4) are embedded in the second insulating positioning grooves (2.3) to position the C-phase busbar (3) and the B-phase busbar (2) and maintain a distance between them;

[0019] The B-phase busbar (2) has a plurality of third insulating posts (2.4) on the side opposite to the A-phase busbar (1), and the A-phase busbar (1) has a plurality of third insulating positioning grooves (1.3) on the side opposite to the B-phase busbar (2) that match the shape of the third insulating posts (2.4); the ends of the third insulating posts (2.4) are embedded in the third insulating positioning grooves (1.3) to position the B-phase busbar (2) and the A-phase busbar (1) and maintain a distance between them.

[0020] Preferably, each of the A-phase busbar (1), the B-phase busbar (2), the C-phase busbar (3), and the neutral busbar (4) has a through fixing hole (5). The fixing hole (5) passes through a bolt to fix the A-phase busbar (1), the B-phase busbar (2), the C-phase busbar (3), and the neutral busbar (4) to the back panel of the distribution box.

[0021] Preferably, the fixing hole (5) is an elliptical through hole.

[0022] Preferably, the A-phase busbar (1), the B-phase busbar (2) and the C-phase busbar (3) are all Z-shaped busbars; on the opposite sides of the two horizontal ends of the Z-shaped busbar, a main circuit breaker switch and a user-side circuit breaker switch are arranged; the main circuit breaker switch and each user-side circuit breaker switch are arranged in a straight line.

[0023] The closed-loop, contactless busbar system provided by this utility model has the following advantages:

[0024] The busbar body and the busbar connector do not use an overlapping connection method, but instead adopt a one-piece molded structure. This solves the problem in the prior art where the busbar connector and the busbar body overlap, which easily leads to weak overlap and increased heat generation of the busbar. The closed, contactless busbar system provided in this application can reduce the heat generation of the busbar and improve the structural robustness of the busbar. Attached Figure Description

[0025] Figure 1 A usage scenario diagram of the closed-type contactless busbar system provided by this utility model;

[0026] Figure 2A first perspective view of the closed-type contactless busbar system provided by this utility model;

[0027] Figure 3 A second perspective view of the closed-type contactless busbar system provided by this utility model;

[0028] Figure 4 A third perspective view of the closed-type contactless busbar system provided by this utility model;

[0029] Figure 5 The main view of the zero-row structure provided by this utility model;

[0030] Figure 6 A rear view of the zero-row structure provided by this utility model;

[0031] Figure 7 This is a front view of the C-phase busbar provided by this utility model;

[0032] Figure 8 The rear view of the C-phase busbar provided by this utility model;

[0033] Figure 9 This is a front view of the B-phase busbar provided by this utility model;

[0034] Figure 10 The rear view of the B-phase busbar provided by this utility model;

[0035] Figure 11 This is a front view of the A-phase busbar provided by this utility model;

[0036] Figure 12 The rear view of the A-phase busbar provided by this utility model. Detailed Implementation

[0037] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0038] This utility model provides a closed, contactless busbar system, combined with Figures 2 to 4 This includes A-phase busbar 1, B-phase busbar 2, C-phase busbar 3, and zero busbar 4;

[0039] Phase A busbar 1 includes a phase A busbar body 1.1 and a phase A busbar connector 1.2 integrally formed on the side of the phase A busbar body 1.1; Phase B busbar 2 includes a phase B busbar body 2.1 and a phase B busbar connector 2.2 integrally formed on the side of the phase B busbar body 2.1; Phase C busbar 3 includes a phase C busbar body 3.1 and a phase C busbar connector 3.2 integrally formed on the side of the phase C busbar body 3.1; Neutral busbar 4 includes a neutral busbar body 4.1 and a neutral busbar connector 4.2 integrally formed on the side of the neutral busbar body 4.1.

[0040] Therefore, in this application, for each of the A-phase busbar 1, B-phase busbar 2, C-phase busbar 3, and neutral busbar 4, the busbar body and the busbar connector are not connected by an overlapping method, but rather by a directly integrally formed structure. This solves the problem in the prior art where the busbar connector and the busbar body overlap, leading to an unstable overlap and increased heat generation of the busbar. The closed, contactless busbar system provided in this application can reduce busbar heat generation and improve the structural robustness of the busbar.

[0041] As a preferred embodiment, the A-phase busbar body 1.1, the B-phase busbar body 2.1, the C-phase busbar body 3.1, and the neutral busbar body 4.1 all include copper busbars and thermosetting insulation material covering the outer surface of the copper busbars. The thermosetting insulation material will not deform when the copper busbars generate excessive current, thus providing excellent insulation.

[0042] To facilitate the assembly of the busbar system, the plug parts of the A-phase busbar connector 1.2, B-phase busbar connector 2.2, C-phase busbar connector 3.2 and neutral busbar connector 4.2 are arranged vertically downwards and in a straight line.

[0043] Specifically, the side of the B-phase busbar body 2.1 extends directly to form the B-phase busbar connector 2.2, which is coplanar with the B-phase busbar body 2.1; the A-phase busbar body 1.1 is located behind the B-phase busbar body 2.1, and its side extends to form the A-phase busbar connector 1.2, which is coplanar with the B-phase busbar connector 2.2, via a forward bend; the C-phase busbar body 3.1 is located in front of the B-phase busbar body 2.1, and its side extends to form the C-phase busbar connector 3.2, which is coplanar with the B-phase busbar connector 2.2, via a backward bend; the neutral busbar body 4.1 is located in front of the C-phase busbar body 3.1, and its side extends to form the neutral busbar connector 4.2, which is coplanar with the B-phase busbar connector 2.2, via a backward bend. This structural arrangement achieves a linear arrangement of the busbar connectors.

[0044] To further improve the heat dissipation of the busbar system, A-phase busbar 1, B-phase busbar 2, C-phase busbar 3 and neutral busbar 4 are arranged in parallel from back to front, and there are gaps between A-phase busbar 1 and B-phase busbar 2, between B-phase busbar 2 and C-phase busbar 3, and between C-phase busbar 3 and neutral busbar 4.

[0045] Specifically, in combination Figures 5 to 12 The zero-phase busbar 4 has several first insulating posts 4.3 on the side opposite to the C-phase busbar 3, and the C-phase busbar 3 has several first insulating positioning grooves 3.3 on the side opposite to the zero-phase busbar 4 that match the shape of the first insulating posts 4.3; the ends of the first insulating posts 4.3 are embedded into the first insulating positioning grooves 3.3, so that the zero-phase busbar 4 and the C-phase busbar 3 are positioned and maintained at a distance.

[0046] The C-phase busbar 3 has several second insulating posts 3.4 on the side opposite to the B-phase busbar 2, and the B-phase busbar 2 has several second insulating positioning grooves 2.3 on the side opposite to the C-phase busbar 3 that match the shape of the second insulating posts 3.4; the ends of the second insulating posts 3.4 are embedded into the second insulating positioning grooves 2.3, so that the C-phase busbar 3 and the B-phase busbar 2 are positioned and maintained at a distance.

[0047] The B-phase busbar 2 has several third insulating posts 2.4 on the side opposite to the A-phase busbar 1, and the A-phase busbar 1 has several third insulating positioning grooves 1.3 on the side opposite to the B-phase busbar 2 that match the shape of the third insulating posts 2.4; the ends of the third insulating posts 2.4 are embedded into the third insulating positioning grooves 1.3, so that the B-phase busbar 2 and the A-phase busbar 1 are positioned and maintained at a distance.

[0048] Therefore, this application simplifies the assembly process and improves the reliability of the assembly results by creating a gap between each busbar and by using the cooperation of insulating posts and insulating positioning grooves to achieve the gap between adjacent busbars while facilitating the positioning of each busbar.

[0049] In this application, to enhance the structural stability and reliability of the busbar system after assembly, each of the A-phase busbar 1, B-phase busbar 2, C-phase busbar 3, and neutral busbar 4 is provided with a through-hole 5. Bolts pass through the fixing holes 5 to fix the A-phase busbar 1, B-phase busbar 2, C-phase busbar 3, and neutral busbar 4 to the back panel of the distribution box. Preferably, the fixing hole 5 is an elliptical through hole.

[0050] As a way of using it, combined Figure 1 Phase A busbar 1, Phase B busbar 2 and Phase C busbar 3 are all Z-shaped busbars; on the opposite sides of the two horizontal ends of the Z-shaped busbars, the main circuit breaker 7 and each user-side circuit breaker 6 are arranged; the main circuit breaker 7 and each user-side circuit breaker 6 are arranged in a straight line.

[0051] One end of the main circuit breaker 7 is connected to the incoming line, and the outgoing line of the main circuit breaker 7 is connected to the incoming line of the busbar system. The busbar system has multiple sets of outgoing lines, each set of outgoing lines is connected to a user-side circuit breaker 6, thereby controlling the power supply to each user side through the user-side circuit breaker 6. Figure 1 As shown, the busbar system of this application adopts a straight-line arrangement, which has the advantage of facilitating the assembly of the main circuit breaker switch 7 and each user-side circuit breaker switch 6.

[0052] As an example, the neutral busbar 4 is made from a single piece of copper plate through cutting and bending. The surface of the processed copper busbar is then covered with a thermosetting material, forming insulating pillars at the same time. These insulating pillars create gaps between the copper busbar phases, preventing phase-to-phase short circuits. The inside of the neutral busbar fixing holes is also covered with thermosetting insulating material to prevent phase-to-phase short circuits caused by screws. The neutral busbar connector 4.2 is not covered with thermosetting material, allowing for a tight connection with the switch and preventing excessive temperature rise. Phase A busbar 1, Phase B busbar 2, and Phase C busbar 3 are treated in the same way.

[0053] Furthermore, heat dissipation grooves can be provided on both sides of phase 4 (0-phase). The copper busbars are not exposed at these grooves; only the insulation layer thickness is slightly thinner at these groove locations. The heat dissipation grooves are not directly opposite the C-phase grooves, but rather arranged in a triangular shape to increase their electrical clearance. Similarly, the C-phase and B-phase heat dissipation grooves are not directly opposite each other, and the B-phase and A-phase heat dissipation grooves are not directly opposite each other.

[0054] The closed-loop, contactless busbar system provided by this utility model has the following advantages: the busbar body and the busbar connector do not use an overlapping connection method, but rather a directly integrally formed structure. This solves the problem in the prior art where the busbar connector and busbar body overlap, leading to weak overlap and increased heat generation in the busbar. The closed-loop, contactless busbar system provided by this application can reduce busbar heat generation and improve the structural robustness of the busbar.

[0055] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A closed, contactless busbar system, characterized in that, It includes A-phase busbar (1), B-phase busbar (2), C-phase busbar (3) and zero busbar (4); The A-phase busbar (1) includes an A-phase busbar body (1.1) and an A-phase busbar connector (1.2) integrally formed on the side of the A-phase busbar body (1.1); The B-phase busbar (2) includes a B-phase busbar body (2.1) and a B-phase busbar connector (2.2) integrally formed on the side of the B-phase busbar body (2.1); The C-phase busbar (3) includes a C-phase busbar body (3.1) and a C-phase busbar connector (3.2) integrally formed on the side of the C-phase busbar body (3.1); The zero-row (4) includes a zero-row body (4.1) and a zero-row connector (4.2) integrally formed on the side of the zero-row body (4.1).

2. The closed-loop contactless busbar system according to claim 1, characterized in that, The A-phase busbar body (1.1), the B-phase busbar body (2.1), the C-phase busbar body (3.1), and the zero-phase busbar body (4.1) all include copper busbars and thermosetting insulating material covering the outer surface of the copper busbars.

3. The closed-loop contactless busbar system according to claim 1, characterized in that, The plug portions of the A-phase busbar connector (1.2), the B-phase busbar connector (2.2), the C-phase busbar connector (3.2), and the neutral busbar connector (4.2) are arranged vertically downwards on the same plane, forming a straight line.

4. The closed-loop contactless busbar system according to claim 1, characterized in that, The A-phase busbar (1), the B-phase busbar (2), the C-phase busbar (3), and the zero-phase busbar (4) are arranged in parallel from back to front, and there are gaps between the A-phase busbar (1) and the B-phase busbar (2), between the B-phase busbar (2) and the C-phase busbar (3), and between the C-phase busbar (3) and the zero-phase busbar (4).

5. A closed-loop contactless busbar system according to claim 4, characterized in that, The side of the B-phase busbar body (2.1) extends directly to the B-phase busbar connector (2.2), which is coplanar with the B-phase busbar body (2.1); The A-phase busbar body (1.1) is located behind the B-phase busbar body (2.1). The side of the A-phase busbar body (1.1) extends out a coplanar A-phase busbar connector (1.2) with the B-phase busbar connector (2.2) through a forward bending portion. The C-phase busbar body (3.1) is located in front of the B-phase busbar body (2.1), and the side of the C-phase busbar body (3.1) extends the C-phase busbar connector (3.2) coplanar with the B-phase busbar connector (2.2) through a rearward bending portion; The zero-row main body (4.1) is located in front of the C-phase busbar main body (3.1), and the side of the zero-row main body (4.1) extends into the zero-row connector (4.2) which is coplanar with the B-phase busbar connector (2.2) through a rearward bending portion.

6. A closed-loop contactless busbar system according to claim 4, characterized in that, The zero-row (4) has a plurality of first insulating posts (4.3) on the side opposite to the C-phase busbar (3), and the C-phase busbar (3) has a plurality of first insulating positioning grooves (3.3) on the side opposite to the zero-row (4) that match the shape of the first insulating posts (4.3); the ends of the first insulating posts (4.3) are embedded in the first insulating positioning grooves (3.3) to position the zero-row (4) and the C-phase busbar (3) and maintain a distance between them; The C-phase busbar (3) has a plurality of second insulating posts (3.4) on the side opposite to the B-phase busbar (2), and the B-phase busbar (2) has a plurality of second insulating positioning grooves (2.3) on the side opposite to the C-phase busbar (3) that match the shape of the second insulating posts (3.4); the ends of the second insulating posts (3.4) are embedded in the second insulating positioning grooves (2.3) to position the C-phase busbar (3) and the B-phase busbar (2) and maintain a distance between them; The B-phase busbar (2) has a plurality of third insulating posts (2.4) on the side opposite to the A-phase busbar (1), and the A-phase busbar (1) has a plurality of third insulating positioning grooves (1.3) on the side opposite to the B-phase busbar (2) that match the shape of the third insulating posts (2.4); the ends of the third insulating posts (2.4) are embedded in the third insulating positioning grooves (1.3) to position the B-phase busbar (2) and the A-phase busbar (1) and maintain a distance between them.

7. A closed-loop contactless busbar system according to claim 4, characterized in that, Each of the A-phase busbar (1), the B-phase busbar (2), the C-phase busbar (3), and the neutral busbar (4) has a through fixing hole (5). The fixing hole (5) passes through a bolt to fix the A-phase busbar (1), the B-phase busbar (2), the C-phase busbar (3), and the neutral busbar (4) to the back panel of the distribution box.

8. A closed-loop contactless busbar system according to claim 7, characterized in that, The fixing hole (5) is an elliptical through hole.

9. A closed-loop contactless busbar system according to claim 1, characterized in that, The A-phase busbar (1), the B-phase busbar (2), and the C-phase busbar (3) are all Z-shaped busbars; on the opposite sides of the two horizontal ends of the Z-shaped busbar, a main circuit breaker switch and a user-side circuit breaker switch are arranged; the main circuit breaker switch and each user-side circuit breaker switch are arranged in a straight line.

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