Contactor

Abstract

A contactor includes: a static contact holder having a main body and a plurality of wiring terminals extending from the main body and configured to be electrically connected with an electric wire, each of the plurality of wiring terminals including a plate-shaped terminal main body and a terminal hole penetrating through the terminal main body; the junction box is provided with a plurality of wiring holes and assembled to the static contact support, and each wiring terminal is located in the corresponding wiring hole; wherein the surface of the junction box, which is far away from the static contact support, is provided with a groove, and the groove is arranged among the plurality of wiring terminals.

Description

[0001] This application is a divisional application of Chinese utility model patent application (application number: 202420342771.8, application date: February 23, 2024, utility model title: a contactor). Technical Field

[0002] This utility model relates to a contactor, and more specifically, to a contactor that is more reliable and safer to operate. Background Technology

[0003] A contactor can be formed by assembling a junction box into a stationary contact bracket. The terminals in the stationary contact bracket can be electrically connected to an external circuit through the wiring holes in the junction box.

[0004] However, in existing contactors, the stationary contact bracket is incompatible with different types of junction boxes. For example, the stationary contact bracket can only be assembled with EverLink type junction boxes, and not with other types of junction boxes such as NutHolder, reducing the flexibility of contactor assembly. Furthermore, because existing contactors cannot be fitted with phase spacers or protective covers, there is a risk of accidental short circuits between multiple terminals, and a risk of foreign objects (e.g., dust or operator's fingers) accidentally entering the wiring holes, negatively impacting the reliability and safety of the contactor.

[0005] Therefore, it is desirable to propose a contactor that improves upon the shortcomings of the aforementioned prior art. Utility Model Content

[0006] According to a first aspect of the present invention, a contactor is provided, comprising: a stationary contact support having a body and a plurality of terminals extending from the body and configured for electrical connection with a wire, each of the plurality of terminals including a plate-shaped terminal body and a terminal hole penetrating the terminal body; a junction box having a plurality of wiring holes and fitted to the stationary contact support, each of the plurality of terminals being located in a corresponding wiring hole for connecting different types of conductors; wherein a groove is provided on the surface of the junction box away from the stationary contact support, the groove being located between the plurality of terminals.

[0007] According to this scheme, the corresponding equipment can be inserted into the groove of the junction box to improve the reliability and safety of the contactor.

[0008] In some embodiments, the contactor may also include a phase spacer having a plate-shaped spacer body and a spacer protrusion protruding from the spacer body, the spacer protrusion engaging with and inserting into a groove.

[0009] According to this scheme, the phase spacer can prevent accidental short circuits between multiple terminals, thereby improving the reliability of the contactor.

[0010] In some embodiments, the contactor may also include a protective cover having a top plate and a plurality of partition walls extending from the top plate, the partition walls having protective protrusions projecting from the partition walls, the protective protrusions engaging with and inserting into recesses.

[0011] According to this design, the protective cover can prevent foreign objects (such as dust or operator's fingers) from accidentally entering the wiring hole, thereby improving the safety of the contactor.

[0012] In some solutions, the protective cover can meet the IP20 protection rating.

[0013] In some designs, the main body may have at least one mounting feature, and the junction box may have at least one mating mounting feature, which mates with the mating mounting feature to assemble the junction box onto the stationary contact bracket.

[0014] In some designs, the mounting feature can be a recess, and the mating mounting feature is a protrusion that inserts into the recess.

[0015] In some designs, the stationary contact support may also include a baffle that extends from the body and is positioned between multiple terminals to prevent short circuits between the terminals.

[0016] In some designs, clearance holes may be provided on the surface of the junction box adjacent to the stationary contact support, with a baffle extending into the clearance holes.

[0017] In some designs, the contactor may have three terminals, and the junction box may have three wiring holes.

[0018] In some solutions, the wires can be copper busbars. Attached Figure Description

[0019] Figure 1 A schematic diagram of a stationary contact support according to an embodiment of the present invention is shown;

[0020] Figure 2A A schematic diagram of a first junction box according to an embodiment of the present invention is shown;

[0021] Figure 2B A schematic diagram of a second junction box according to an embodiment of the present invention is shown;

[0022] Figure 2C A schematic diagram of a third junction box according to an embodiment of the present invention is shown;

[0023] Figure 3A It shows Figure 2A Junction box assembled to Figure 1 A schematic diagram of the stationary contact support;

[0024] Figure 3B It shows Figure 2B Junction box assembled to Figure 1 A schematic diagram of the stationary contact support;

[0025] Figure 3C It shows Figure 2C Junction box assembled to Figure 1 A schematic diagram of the stationary contact support;

[0026] Figure 4 A schematic diagram of a phase spacer according to an embodiment of the present invention is shown;

[0027] Figure 5A It shows Figure 4 The phase spacer is assembled into Figure 3A A schematic diagram of a contactor;

[0028] Figure 5B It shows Figure 4 The phase spacer is assembled into Figure 3B A schematic diagram of a contactor;

[0029] Figure 5C It shows Figure 4 The phase spacer is assembled into Figure 3C A schematic diagram of a contactor;

[0030] Figure 6 A schematic diagram of a protective cover according to an embodiment of the present invention is shown;

[0031] Figure 7A It shows Figure 6 The protective shield is assembled into Figure 3A A schematic diagram of a contactor;

[0032] Figure 7B It shows Figure 6 The protective shield is assembled into Figure 3B A schematic diagram of a contactor;

[0033] Figure 7C It shows Figure 6 The protective shield is assembled into Figure 3C A schematic diagram of a contactor;

[0034] Figure label:

[0035] 1. Contactor

[0036] 10. Static contact support

[0037] 12 main body

[0038] 14 Terminal blocks

[0039] 16-terminal body

[0040] 18 terminal holes

[0041] 20 concavity

[0042] 22 baffles

[0043] 30 phase spacers

[0044] 32. Main body of partition

[0045] 34. Divider protrusion

[0046] 40 Protective Shield

[0047] 42 Top Plate

[0048] 44. Partition wall

[0049] 46. ​​Shield protrusions

[0050] 100 First junction box

[0051] 110 Wiring hole

[0052] 120 groove

[0053] 130 protrusion

[0054] 140 clearance hole

[0055] 150 First crimping piece

[0056] 200 Second junction box

[0057] 210 Wiring hole

[0058] 220 Groove

[0059] 230 protrusion

[0060] 240 clearance hole

[0061] 250 Second crimping piece

[0062] 300 Third junction box

[0063] 310 Wiring hole

[0064] 320 groove

[0065] 330 protrusion

[0066] 340 clearance hole

[0067] 350 bolts Detailed Implementation

[0068] To make the objectives, solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0069] like Figure 3A As shown, the contactor 1 includes a stationary contact bracket 10 and a first junction box 100, the first junction box 100 being assembled to the stationary contact bracket 10. Figure 1 As shown, the stationary contact support 10 has a body 12 and a plurality of terminals 14 extending from the body 12 and configured for electrical connection with wires (e.g., copper busbars). Each terminal 14 includes a plate-shaped terminal body 16 and a terminal hole 18 penetrating the terminal body 16. Figure 2A As shown, the first junction box 100 has a plurality of wiring holes 110, and the wiring terminals 14 are located in the corresponding wiring holes 110. The first junction box 100 may also include a first crimping member 150 positioned below the wiring terminals 14 and an actuator, the actuator being driven by a user, thereby causing the first crimping member 150 to move upward toward the wiring terminals 14, thereby crimping the wire tightly to the wiring terminals 2.

[0070] For the contactor 1 described above, there is a risk of accidental short circuits between the multiple terminals 14, and there is a risk of foreign objects (e.g., dust or operator's fingers) accidentally entering the wiring holes 110, negatively impacting the reliability and safety of the contactor 1. Therefore, a groove 120 is provided on the surface of the first junction box 100 of the contactor 1 away from the stationary contact support 10. The groove 120 is located between the multiple terminals 14 and is used to assemble protective components for the contactor 1 to improve its reliability and safety.

[0071] The protective component can be, for example, a phase spacer 30, such as Figure 4 As shown, the phase spacer 30 has a plate-shaped spacer body 32 and a spacer protrusion 34 protruding from the spacer body 32. The spacer protrusion 34 mates with and is inserted into the groove 120 to assemble the phase spacer 30 to the contactor 1 (e.g., Figure 5A (As shown). In this way, the phase spacer 30 can prevent accidental short circuits between multiple terminals 14, thereby improving the reliability of the contactor 1.

[0072] Alternatively, the protective component can be, for example, a protective cover 40, such as Figure 6As shown, the protective cover 40 has a top plate 42 and a plurality of partition walls 44 extending from the top plate 42. Each partition wall 44 has a protective cover protrusion 46 protruding from it. The protective cover protrusion 46 mates with and inserts into a recess 120 to assemble the protective cover 40 onto the contactor 1 (e.g., ...). Figure 7A (As shown). In this way, the protective cover 40 can prevent foreign objects (e.g., dust or operator's fingers) from accidentally entering the wiring hole 110, thereby improving the safety of the contactor 1. Preferably, the protective cover 40 can meet the IP20 protection rating.

[0073] Preferably, the main body 12 may be provided with at least one mounting feature, and the first junction box 100 may be provided with at least one mating mounting feature. The mounting feature and the mating mounting feature cooperate to assemble the first junction box 100 to the stationary contact bracket 10. For example, the mounting feature may be a recess 20, and the mating mounting feature may be a protrusion 130, which inserts into the recess 20 to assemble the first junction box 100 to the stationary contact bracket 10. By providing mounting features on the main body 12, the stationary contact bracket 10 can be assembled to different junction boxes (e.g., the first junction box 100, the second junction box 200, and the third junction box 300), improving the flexibility of contactor 1 assembly.

[0074] Preferably, the stationary contact support 10 may further include a baffle 22, which extends from the main body 12 and is disposed between the plurality of terminals 14 to prevent short circuits between the plurality of terminals 14. In addition, a clearance hole 140 may be provided on the surface of the first junction box 100 adjacent to the stationary contact support 10, and the baffle 22 extends into the clearance hole 140.

[0075] Optionally, the contactor 1 may have three terminals 14, and the first junction box 100 may have three wiring holes 110. It should be understood that this invention is not intended to limit the number of terminals 14 and corresponding wiring holes 110, and the contactor 1 may also have any other suitable number of terminals and corresponding wiring holes.

[0076] In the above description, the contactor 1 was described using the first junction box 100 as an example. The contactor 1 of this utility model can be applied to different types of junction boxes. Examples of the second junction box 200 and the third junction box 300 will be described below. Because the examples of the second junction box 200 and the third junction box 300 are similar to the example of the first junction box 100, for the sake of brevity, only the differences between the examples of the second junction box 200 and the third junction box 300 and the example of the first junction box 100 will be described below.

[0077] like Figure 2BAs shown, compared with the first junction box 100, the second junction box 200 adds an elastic compensation function, that is, when the connected wires tend to loosen, it can compensate for this loosening gap. Specifically, the second crimping member 250 of the second junction box 200 can be a deformable elastic member. During wiring, the second crimping member 250 is compressed and stores energy. When the connected wires tend to loosen, the second crimping member 250 releases energy and springs back, pressing the wires further against the terminal 14.

[0078] like Figure 2C As shown, the main difference between the third junction box 300 and the first junction box 100 is that, instead of the first crimping member 150, the third junction box 300 uses bolts 350 and nuts to tighten and crimp the wires to the terminals 14.

[0079] This document describes in detail several exemplary embodiments of the present invention with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various technical features and structures proposed in the present invention can be combined without exceeding the protection scope of the present invention, which is determined by the appended claims.

Claims

1. A contactor, characterized in that, include: A stationary contact support has a body and a plurality of terminals extending from the body and configured for electrical connection with wires, each of the plurality of terminals including a plate-shaped terminal body and a terminal hole through the terminal body; A junction box having multiple wiring holes and fitted to the stationary contact bracket, each of the multiple wiring terminals being located in a corresponding wiring hole; The junction box has a groove on its surface away from the stationary contact bracket, and the groove is located between the plurality of terminals; The contactor further includes a phase spacer, which has a plate-shaped spacer body and a spacer protrusion protruding from the spacer body. The spacer protrusion engages with the groove and is inserted into the groove.

2. The contactor according to claim 1, characterized in that, The main body is provided with at least one mounting feature, and the junction box is provided with at least one mating mounting feature. The mounting feature and the mating mounting feature cooperate to assemble the junction box onto the stationary contact bracket.

3. The contactor according to claim 2, characterized in that, The mounting feature is a recess, and the mating mounting feature is a protrusion, which is inserted into the recess.

4. The contactor according to claim 1, characterized in that, The stationary contact bracket also includes a baffle that extends from the main body and is disposed between the plurality of terminals to prevent short circuits between the plurality of terminals.

5. The contactor according to claim 4, characterized in that, The junction box has a clearance hole on its surface adjacent to the stationary contact bracket, and the baffle extends into the clearance hole.

6. The contactor according to claim 1, characterized in that, The contactor has three terminals, and the junction box has three wiring holes.

7. The contactor according to claim 1, characterized in that, The wire is a copper busbar.

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