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

Technical Field

[0001] The utility model relates to a contactor, and more particularly to a contactor with more reliable and safer operation. Background Art

[0002] A contactor can be formed by assembling the junction box to the stationary contact bracket, and the connection terminals in the stationary contact bracket can be electrically connected to an external circuit through the connection holes in the junction box.

[0003] However, in existing contactors, the static contact bracket is not compatible with different types of junction boxes. For example, the static contact bracket can only be assembled with EverLink type junction boxes, but cannot be assembled with other types of junction boxes such as NutHolder, which reduces the flexibility of contactor assembly. In addition, in existing contactors, because the contactor cannot be installed with phase partitions or protective covers, there is a risk of accidental short circuits between multiple terminal blocks, and there is a risk of foreign matter (for example, dust or operator's fingers) accidentally entering the wiring hole, which has a negative impact on the reliability and safety of the contactor.

[0004] Therefore, it is desired to provide a contactor to improve the deficiencies in the above-mentioned prior art. Utility Model Content

[0005] According to the first aspect of the utility model, a contactor is proposed, comprising: a stationary contact support, having a main body and a plurality of wiring terminals extending from the main body and configured to be electrically connected to electric wires, each of the plurality of wiring terminals comprising a plate-shaped terminal main body and a terminal hole penetrating the terminal main body; a junction box, having a plurality of wiring holes and assembled to the stationary contact support, each of the plurality of wiring terminals being located in a corresponding wiring hole for connecting conductors of different forms; wherein a groove is provided on a surface of the junction box away from the stationary contact support, the groove being located between the plurality of wiring terminals.

[0006] According to this solution, a corresponding device can be inserted into the groove of the junction box to improve the reliability and safety of the contactor.

[0007] In some aspects, the contactor may further include a phase partition having a plate-shaped partition body and a partition protrusion protruding from the partition body, the partition protrusion being matched with the groove and inserted into the groove.

[0008] According to this solution, the phase partition can prevent accidental short circuits between multiple connection terminals, thereby improving the reliability of the contactor.

[0009] In some aspects, the contactor may further include a shield having a top plate and a plurality of barrier walls extending from the top plate, the barrier walls having shield protrusions protruding from the barrier walls, the shield protrusions being matched with and inserted into the grooves.

[0010] According to this solution, the protective cover can prevent foreign matter (for example, dust or fingers of operators) from accidentally entering the wiring hole, thereby improving the safety of the contactor.

[0011] In some solutions, the protective cover can meet the IP20 protection level.

[0012] In some solutions, at least one mounting feature may be provided on the main body, and at least one mating mounting feature may be provided on the terminal box, and the mounting feature and the mating mounting feature cooperate to assemble the terminal box to the stationary contact support.

[0013] In some aspects, the mounting feature may be a recess, and the mating mounting feature may be a protrusion that is inserted into the recess.

[0014] In some solutions, the stationary contact support may further include a baffle extending from the main body and disposed between the plurality of wiring terminals to prevent a short circuit between the plurality of wiring terminals.

[0015] In some solutions, an avoidance hole may be provided on a surface of the junction box adjacent to the static contact support, and the baffle extends into the avoidance hole.

[0016] In some solutions, the contactor may have three wiring terminals, and the wiring box may have three wiring holes.

[0017] In some aspects, the wires may be copper busbars. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a stationary contact bracket according to an embodiment of the utility model is shown;

[0019] Figure 2A A schematic diagram of a first junction box according to an embodiment of the utility model is shown;

[0020] Figure 2B A schematic diagram of a second junction box according to an embodiment of the utility model is shown;

[0021] Figure 2C A schematic diagram of a third junction box according to an embodiment of the utility model is shown;

[0022] Figure 3A Shows Figure 2A The junction box is assembled to Figure 1 Schematic diagram of the stationary contact support;

[0023] Figure 3B Shows Figure 2B The junction box is assembled to Figure 1 Schematic diagram of the stationary contact support;

[0024] Figure 3C Shows Figure 2C The junction box is assembled to Figure 1 Schematic diagram of the stationary contact support;

[0025] Figure 4 A schematic diagram of a phase partition according to an embodiment of the utility model is shown;

[0026] Figure 5A Shows Figure 4 The phase barriers are assembled to Figure 3A Schematic diagram of the contactor;

[0027] Figure 5B Shows Figure 4 The phase barriers are assembled to Figure 3B Schematic diagram of the contactor;

[0028] Figure 5C Shows Figure 4 The phase barriers are assembled to Figure 3C Schematic diagram of the contactor;

[0029] Figure 6 A schematic diagram of a protective cover according to an embodiment of the utility model is shown;

[0030] Fig. 7A Shows Figure 6 The protective cover is assembled to Figure 3A Schematic diagram of the contactor;

[0031] Figure 7B Shows Figure 6 The protective cover is assembled to Figure 3B Schematic diagram of the contactor;

[0032] Figure 7C Shows Figure 6 The protective cover is assembled to Figure 3C Schematic diagram of the contactor;

[0033] Reference numerals:

[0034] 1 Contactor

[0035] 10 Stationary contact bracket

[0036] 12 Main Body

[0037] 14 Terminal Blocks

[0038] 16 Terminal body

[0039] 18 Terminal hole

[0040] 20 concavity

[0041] 22 Baffle

[0042] 30 Phase partition

[0043] 32 Bulkhead body

[0044] 34 Bulkhead protrusion

[0045] 40 Protective cover

[0046] 42 Top Plate

[0047] 44 Partition wall

[0048] 46 Shield protrusion

[0049] 100 First Junction Box

[0050] 110 Wiring hole

[0051] 120 grooves

[0052] 130 protrusion

[0053] 140 Avoidance hole

[0054] 150 First crimping piece

[0055] 200 Second junction box

[0056] 210 Wiring hole

[0057] 220 groove

[0058] 230 protrusion

[0059] 240 Avoidance hole

[0060] 250 Second crimping piece

[0061] 300 Third junction box

[0062] 310 Wiring hole

[0063] 320 grooves

[0064] 330 protrusion

[0065] 340 Avoidance hole

[0066] 350 Bolt DETAILED DESCRIPTION

[0067] In order to make the purpose, scheme and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. Unless otherwise specified, the terms used in this article have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0068] like Figure 3AAs shown, the contactor 1 includes a stationary contact support 10 and a first junction box 100, and the first junction box 100 is assembled to the stationary contact support 10. Figure 1 As shown, the stationary contact support 10 has a main body 12 and a plurality of connection terminals 14 extending from the main body 12 and configured to be electrically connected to wires (e.g., copper bars), and the connection terminals 14 include 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 capable of being driven by a user, thereby driving the first crimping member 150 to move upward toward the wiring terminals 14, thereby tightly crimping the wires with the wiring terminals 2.

[0069] For the above-mentioned contactor 1, there is a risk of accidental short circuit between the plurality of wiring terminals 14, and there is a risk of foreign matter (for example, dust or fingers of operators) accidentally entering the wiring hole 110, which has a negative impact on the reliability and safety of the contactor 1. To this end, a groove 120 is provided on the surface of the first junction box 100 of the contactor 1 away from the static contact bracket 10, and the groove 120 is located between the plurality of wiring terminals 14. The groove 120 is used to assemble a protective component for the contactor 1 to improve the reliability and safety of the contactor 1.

[0070] The protection component may be, for example, a phase partition 30, such as Figure 4 As shown, the phase partition 30 has a plate-shaped partition body 32 and a partition protrusion 34 protruding from the partition body 32, and the partition protrusion 34 cooperates with the groove 120 and is inserted into the groove 120 to assemble the phase partition 30 to the contactor 1 (such as Figure 5A In this way, the phase partition 30 can prevent accidental short circuits between the plurality of connection terminals 14, thereby improving the reliability of the contactor 1.

[0071] Alternatively, the protective member may be, for example, a protective cover 40, such as Figure 6 As shown, the protective cover 40 has a top plate 42 and a plurality of barrier walls 44 extending from the top plate 42, the barrier walls 44 having a protective cover protrusion 46 protruding from the barrier walls 44, and the protective cover protrusion 46 cooperates with the groove 120 and is inserted into the groove 120 to assemble the protective cover 40 to the contactor 1 (such as Fig. 7A As shown). In this way, the protective cover 40 can prevent foreign matter (such as dust or fingers of operators) 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 level.

[0072] Preferably, at least one mounting feature may be provided on the main body 12, and at least one matching mounting feature may be provided on the first junction box 100, and the mounting feature cooperates with the matching mounting feature to assemble the first junction box 100 to the stationary contact support 10. For example, the mounting feature may be a recess 20, and the matching mounting feature may be a protrusion 130, and the protrusion 130 is inserted into the recess 20 to assemble the first junction box 100 to the stationary contact support 10. By providing the mounting feature on the main body 12, the stationary contact support 10 can be assembled to different junction boxes (for example, the first junction box 100, the second junction box 200, and the third junction box 300), thereby improving the flexibility of the contactor 1 assembly.

[0073] Preferably, the static contact support 10 may further include a baffle 22, which extends from the main body 12 and is disposed between the plurality of wiring terminals 14 to prevent short circuits between the plurality of wiring terminals 14. In addition, a avoidance hole 140 may be provided on a surface of the first junction box 100 adjacent to the static contact support 10, and the baffle 22 extends into the avoidance hole 140.

[0074] Optionally, the contactor 1 may have three wiring terminals 14, and the first terminal box 100 may have three wiring holes 110. It should be understood that the present invention is not intended to limit the number of wiring terminals 14 and corresponding wiring holes 110, and the contactor 1 may also have any other suitable number of wiring terminals and corresponding wiring holes.

[0075] In the above description, the contactor 1 is described by taking the first junction box 100 as an example. The contactor 1 of the present utility model can be applied to different types of junction boxes. The 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 are described below.

[0076] like Figure 2B As shown, the second junction box 200 has an additional elastic compensation function compared to the first junction box 100, that is, when the connected wires have a tendency to loosen, this part of the loose gap can be compensated. Specifically, the second crimping member 250 of the second junction box 200 can be a deformable elastic member. When wiring, the second crimping member 250 is compressed to store energy. When the connected wires have a tendency to loosen, the second crimping member 250 releases energy and rebounds, and continues to press the wires against the terminal 14.

[0077] like Figure 2C As shown, the main difference between the third terminal box 300 and the first terminal box 100 is that, instead of the first crimping piece 150 , the third terminal box 300 uses a bolt 350 and a nut to tighten and fit to crimp the wires and the terminal 14 .

[0078] This document describes in detail several exemplary embodiments of the present invention with reference to preferred embodiments. However, it will be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations may be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present invention may 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 having a main body and a plurality of connection terminals extending from the main body and configured to be electrically connected to the wires, each of the plurality of connection terminals comprising a plate-shaped terminal main body and a terminal hole penetrating the terminal main body; A junction box having a plurality of wiring holes and assembled to the stationary contact support, each of the plurality of wiring terminals being located in a corresponding wiring hole; Wherein, a groove is provided on the surface of the junction box away from the static contact support, and the groove is located between the plurality of connection terminals; And wherein the contactor further comprises a protective cover, the protective cover having a top plate and a plurality of barrier walls extending from the top plate, the barrier walls having a protective cover protrusion protruding from the barrier walls, the protective cover protrusion being matched with the groove and inserted into the groove.

2. The contactor according to claim 1, characterized in that: The protective cover meets the IP20 protection grade.

3. 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 matching mounting feature, and the mounting feature cooperates with the matching mounting feature to assemble the junction box to the stationary contact bracket.

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

5. The contactor according to claim 1, characterized in that: The stationary contact support further includes a baffle, which extends from the main body and is disposed between the plurality of wiring terminals to prevent a short circuit between the plurality of wiring terminals.

6. The contactor according to claim 5, characterized in that: An avoidance hole is provided on the surface of the junction box adjacent to the static contact support, and the baffle extends into the avoidance hole.

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

8. The contactor according to claim 1, characterized in that: The wires are copper busbars.

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