Starting thermal protector convenient for connection of wiring terminals

Abstract

The utility model relates to a starting thermal protector convenient for connection of wiring terminals. The starter comprises an L terminal, an N terminal, a PE terminal, a starter body and a thermal protector, and the starter body is provided with an L terminal mounting groove, an N terminal mounting groove, a PE terminal mounting groove and a protector mounting cavity. The L wiring terminal, the N wiring terminal, the PE wiring terminal and the thermal protector are respectively installed in the L wiring terminal installation groove, the N wiring terminal installation groove, the PE wiring terminal installation groove and the protector installation cavity, and is structurally characterized in that the L wiring terminal is provided with an L wiring insertion piece, an L wiring threaded hole, an L wiring limiting table I and an L wiring limiting table II; the N wiring terminal is provided with an N wiring insertion piece, an N wiring threaded hole, a first N wiring limiting table and a second N wiring limiting table. The PE wiring terminal is provided with a PE wiring insertion piece, a PE wiring threaded hole, a first PE wiring limiting table and a second PE wiring limiting table.

Description

Technical Field

[0001] The utility model relates to a starting thermal protector which is convenient for connecting wiring terminals and is mainly used for starting and protecting compressor motors, and can also be used for starting and protecting general single-phase AC motors. Background Art

[0002] The traditional two compressor devices (thermal protector and starter) on the market are installed in refrigerator factories as follows: first insert the thermal protector and starter into the sealed terminal of the compressor, and then connect the power cord.

[0003] As the market develops, it is possible to connect the live wire, neutral wire, and ground wire in refrigeration appliances to corresponding positions, avoid wiring errors caused by complicated wiring, improve online production efficiency, and reduce the difficulty of inspection and maintenance. In the existing technology, it is usually necessary to transfer through the protector and starter. Since the additional electrical connection will make the wiring inside the plastic cover chaotic, there are safety hazards and low installation efficiency.

[0004] Therefore, it is necessary to develop a starting thermal protector that is easy to connect to the wiring terminals. In addition to avoiding assembly interference with the compressor bracket and outer cover, the rationality and safety of the terminal layout must also be considered. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings in the prior art and to provide a starting thermal protector with a reasonable structural design and convenient connection of wiring terminals.

[0006] The technical solution adopted by the utility model to solve the above problems is: the starting thermal protector which is convenient for connecting the wiring terminals comprises an L wiring terminal, an N wiring terminal, a PE wiring terminal, a starter body and a thermal protector, the starter body is provided with an L wiring terminal mounting groove, an N wiring terminal mounting groove, a PE wiring terminal mounting groove and a protector mounting cavity, the L wiring terminal, the N wiring terminal, the PE wiring terminal and the thermal protector are respectively installed in the L wiring terminal mounting groove, the N wiring terminal mounting groove, the PE wiring terminal mounting groove and the protector mounting cavity, and the structural characteristics are: the L wiring terminal is provided with an L wiring plug, an L wiring plug, and an L wiring plug. The threaded hole, L wiring limit platform 1 and L wiring limit platform 2 are arranged on the N wiring terminal, the N wiring plug-in, N wiring threaded hole, N wiring limit platform 1 and N wiring limit platform 2 are arranged on the N wiring terminal, and the PE wiring terminal is provided with a PE wiring plug-in, PE wiring threaded hole, PE wiring limit platform 1 and PE wiring limit platform 2; or the L wiring terminal is provided with an L wiring plug-in, an L wiring threaded hole and an L wiring limit strip, the N wiring terminal is provided with an N wiring plug-in, an N wiring threaded hole and an N wiring limit strip, and the PE wiring terminal is provided with a PE wiring plug-in, a PE wiring threaded hole and a PE wiring limit strip.

[0007] Furthermore, the L terminal, the N terminal and the PE terminal are each connected to the power supply wiring via a fixing screw.

[0008] Furthermore, the fixing screw is threadedly connected to the L wiring threaded hole, the N wiring threaded hole, and the PE wiring threaded hole.

[0009] Furthermore, a wiring ring is provided at one end of the power connection, the wiring ring in the L connection terminal is located between L connection limit platform 1 and L connection limit platform 2, the wiring ring in the N connection terminal is located between N connection limit platform 1 and N connection limit platform 2, and the wiring ring in the PE connection terminal is located between PE connection limit platform 1 and PE connection limit platform 2.

[0010] Furthermore, a wiring plug is provided at one end of the power connection, the wiring plug in the L connection terminal contacts the L connection limit strip, the wiring plug in the N connection terminal contacts the N connection limit strip, and the wiring plug in the PE connection terminal contacts the PE connection limit strip.

[0011] Furthermore, the L wiring limit platform 1 and the L wiring limit platform 2 are arranged at the top of the L wiring terminal, the N wiring limit platform 1 and the N wiring limit platform 2 are arranged at the top of the N wiring terminal, and the PE wiring limit platform 1 and the PE wiring limit platform 2 are arranged at the top of the PE wiring terminal.

[0012] Further, the L wiring limit strip is arranged on the side of the L wiring terminal, the N wiring limit strip is arranged on the side of the N wiring terminal, and the PE wiring limit strip is arranged on the side of the PE wiring terminal.

[0013] Compared with the prior art, the utility model has the following advantages: by arranging L wiring limit platform 1 and L wiring limit platform 2 on the L wiring terminal, by arranging N wiring limit platform 1 and N wiring limit platform 2 on the N wiring terminal, and by arranging PE wiring limit platform 1 and PE wiring limit platform 2 on the PE wiring terminal, the wiring ring can be conveniently connected through fixing screws; or by arranging L wiring limit strip on the L wiring terminal, by arranging N wiring limit strip on the N wiring terminal, and by arranging PE wiring limit strip on the PE wiring terminal, the wiring plug can be conveniently connected; by connecting the L wiring terminal, the N wiring terminal, and the PE wiring terminal with the wiring ring or the wiring plug, direct connection with the power wiring can be achieved.

[0014] The starting thermal protector can avoid incorrect wiring due to complex wiring; and by arranging a protector installation cavity on the starter body and combining it with the thermal protector, the thermal protector and the starter body can be installed more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the explosion structure of the starting thermal protector of the embodiment of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of a starting thermal protector according to an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the L terminal of an embodiment of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the N terminal of an embodiment of the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the PE terminal of the embodiment of the utility model.

[0020] Figure 6 It is a schematic diagram of the structure of the power supply connection of the embodiment of the utility model.

[0021] Figure 7 It is a structural schematic diagram of the connection between the power wiring and the L terminal of an embodiment of the utility model.

[0022] Figure 8 It is a structural schematic diagram of the connection between the power wiring and the N wiring terminal of an embodiment of the utility model.

[0023] Fig. 9 It is a structural schematic diagram of the connection between the power wiring and the PE wiring terminal of an embodiment of the utility model.

[0024] Fig.10 It is a schematic diagram of the explosion structure of the starting thermal protector of the embodiment of the utility model.

[0025] Fig.11 It is a three-dimensional structural schematic diagram of a starting thermal protector according to an embodiment of the utility model.

[0026] Fig.12 It is a schematic diagram of the three-dimensional structure of the L terminal of an embodiment of the utility model.

[0027] Fig.13 It is a three-dimensional structural schematic diagram of the N terminal of an embodiment of the utility model.

[0028] Fig.14 It is a three-dimensional structural schematic diagram of the PE terminal of the embodiment of the utility model.

[0029] Fig.15 It is a schematic diagram of the structure of the power supply connection of the embodiment of the utility model.

[0030] Fig.16 It is a structural schematic diagram of the connection between the power wiring and the L terminal of an embodiment of the utility model.

[0031] Fig.17It is a structural schematic diagram of the connection between the power wiring and the N wiring terminal of an embodiment of the utility model.

[0032] Fig.18 It is a structural schematic diagram of the connection between the power wiring and the PE wiring terminal of an embodiment of the utility model.

[0033] In the figure: L terminal 1, N terminal 2, PE terminal 3, starter body 4, thermal protector 5, power connection 6, fixing screw 7,

[0034] L terminal installation slot 4-1, N terminal installation slot 4-2, PE terminal installation slot 4-3, protector installation cavity 4-4,

[0035] L wiring plug 1-1, L wiring threaded hole 1-2, L wiring limiter 1 1-3, L wiring limiter 2 1-4, L wiring limiter strip 1-5,

[0036] N wiring plug 2-1, N wiring threaded hole 2-2, N wiring limiter 1 2-3, N wiring limiter 2 2-4, N wiring limiter strip 2-5,

[0037] PE wiring plug 3-1, PE wiring threaded hole 3-2, PE wiring limiter 1 3-3, PE wiring limiter 2 3-4, PE wiring limiter strip 3-5,

[0038] Wiring ring 6-1, wiring plug 6-2. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0040] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship, without substantially changing the technical content, should also be regarded as the scope of the implementation of the utility model.

[0041] Example 1 (such as Figure 1-9 as shown).

[0042] The starter thermal protector convenient for connecting the wiring terminals in this embodiment includes an L wiring terminal 1, an N wiring terminal 2, a PE wiring terminal 3, a starter body 4 and a thermal protector 5. The starter body 4 is provided with an L wiring terminal mounting groove 4-1, an N wiring terminal mounting groove 4-2, a PE wiring terminal mounting groove 4-3 and a protector mounting cavity 4-4. The L wiring terminal 1, the N wiring terminal 2, the PE wiring terminal 3 and the thermal protector 5 are respectively installed in the L wiring terminal mounting groove 4-1, the N wiring terminal mounting groove 4-2, the PE wiring terminal mounting groove 4-3 and the protector mounting cavity 4-4. The internal circuit connection relationship and working principle of the starter body 4 are prior art, such as a multi-terminal PTC starter suitable for a small installation space disclosed in application number 202222758734.9.

[0043] In this embodiment, the L terminal 1, the N terminal 2 and the PE terminal 3 are each connected to the power connection 6 via a fixing screw 7, and the fixing screw 7 is threadedly connected to the L connection threaded hole 1-2, the N connection threaded hole 2-2 and the PE connection threaded hole 3-2.

[0044] In this embodiment, the L wiring terminal 1 is provided with an L wiring plug-in piece 1-1, an L wiring threaded hole 1-2, an L wiring limit platform 1-3, an L wiring limit platform 2-4 and an L wiring limit strip 1-5, the N wiring terminal 2 is provided with an N wiring plug-in piece 2-1, an N wiring threaded hole 2-2, an N wiring limit platform 1-3, an N wiring limit platform 2-4 and an N wiring limit strip 2-5, and the PE wiring terminal 3 is provided with a PE wiring plug-in piece 3-1, a PE wiring threaded hole 3-2, a PE wiring limit platform 1-3, a PE wiring limit platform 2-4 and a PE wiring limit strip 3-5.

[0045] One end of the power connection 6 in this embodiment is provided with a connection ring 6-1, the connection ring 6-1 in the L connection terminal 1 is located between the L connection limit platform 1-3 and the L connection limit platform 2-4, the connection ring 6-1 in the N connection terminal 2 is located between the N connection limit platform 1-3 and the N connection limit platform 2-4, and the connection ring 6-1 in the PE connection terminal 3 is located between the PE connection limit platform 1-3 and the PE connection limit platform 2-4.

[0046] In this embodiment, the L wiring limit platform 1-3 and the L wiring limit platform 2 1-4 are arranged at the top of the L wiring terminal 1, the N wiring limit platform 1 2-3 and the N wiring limit platform 2 2-4 are arranged at the top of the N wiring terminal 2, and the PE wiring limit platform 1 3-3 and the PE wiring limit platform 2 3-4 are arranged at the top of the PE wiring terminal 3.

[0047] Specifically, the L wiring threaded hole 1-2, the N wiring threaded hole 2-2, and the PE wiring threaded hole 3-2 can be directly connected to the wiring ring 6-1. At the same time, the wire connections of capacitors, indicator lights, thermostats, electrical control panels and other devices in refrigeration appliances can be transferred through the L wiring plug-in 1-1, the N wiring plug-in 2-1, and the PE wiring plug-in 3-1.

[0048] like Figure 6-9 As shown, a wiring ring 6-1 is provided at one end of the power wiring 6, an L wiring limit platform 1-3 and an L wiring limit platform 2-1-4 are provided at the top of the L wiring threaded hole 1-2, an N wiring limit platform 1-2-3 and an N wiring limit platform 2-4 are provided at the top of the N wiring threaded hole 2-2, and a PE wiring limit platform 1-3-3 and a PE wiring limit platform 2-4 are provided at the top of the PE wiring threaded hole 3-2. Then, a fixing screw 7 is passed through the wiring ring 6-1, and the fixing screw 7 is screwed into the L wiring threaded hole 1-2, the N wiring threaded hole 2-2, and the PE wiring threaded hole 3-2, so that the wiring ring 6-1 is stuck under the L wiring limit platform 1-3 and the L wiring limit platform 2-1-4, the N wiring limit platform 1-3 and the N wiring limit platform 2-4, and the PE wiring limit platform 1-3 and the PE wiring limit platform 2-4.

[0049] The L terminal 1, the N terminal 2, and the PE terminal 3 are fixed by the wiring ring 6-1 and the fixing screw 7, which can avoid wrong wiring due to complicated wiring and ensure the accurate connection of the external power line and the internal power line.

[0050] Example 2 (such as Figure 10-18 as shown).

[0051] The starting thermal protector in this embodiment, which is convenient for connecting the wiring terminals, includes an L wiring terminal 1, an N wiring terminal 2, a PE wiring terminal 3, a starter body 4 and a thermal protector 5. The starter body 4 is provided with an L wiring terminal mounting groove 4-1, an N wiring terminal mounting groove 4-2, a PE wiring terminal mounting groove 4-3 and a protector mounting cavity 4-4. The L wiring terminal 1, the N wiring terminal 2, the PE wiring terminal 3 and the thermal protector 5 are respectively installed in the L wiring terminal mounting groove 4-1, the N wiring terminal mounting groove 4-2, the PE wiring terminal mounting groove 4-3 and the protector mounting cavity 4-4. The internal circuit connection relationship and working principle of the starter body 4 are prior art, such as a multi-terminal PTC starter suitable for a small installation space disclosed in application number 202222758734.9.

[0052] In this embodiment, the L terminal 1, the N terminal 2 and the PE terminal 3 are each connected to the power connection 6 via a fixing screw 7, and the fixing screw 7 is threadedly connected to the L connection threaded hole 1-2, the N connection threaded hole 2-2 and the PE connection threaded hole 3-2.

[0053] In this embodiment, the L terminal 1 is provided with an L terminal plug-in piece 1-1, an L terminal threaded hole 1-2 and an L terminal limit strip 1-5, the N terminal 2 is provided with an N terminal plug-in piece 2-1, an N terminal threaded hole 2-2 and an N terminal limit strip 2-5, and the PE terminal 3 is provided with a PE terminal plug-in piece 3-1, a PE terminal threaded hole 3-2 and a PE terminal limit strip 3-5.

[0054] One end of the power connection 6 in this embodiment is provided with a connection plug 6-2, the connection plug 6-2 in the L connection terminal 1 contacts the L connection limit strip 1-5, the connection plug 6-2 in the N connection terminal 2 contacts the N connection limit strip 2-5, and the connection plug 6-2 in the PE connection terminal 3 contacts the PE connection limit strip 3-5.

[0055] In this embodiment, the L wiring limit strips 1-5 are arranged on the side of the L wiring terminal 1, the N wiring limit strips 2-5 are arranged on the side of the N wiring terminal 2, and the PE wiring limit strips 3-5 are arranged on the side of the PE wiring terminal 3.

[0056] Specifically, the L wiring threaded hole 1-2, the N wiring threaded hole 2-2, and the PE wiring threaded hole 3-2 can be directly connected to the wiring plug 6-2. At the same time, the wire connections of capacitors, indicator lights, thermostats, electrical control panels and other devices in refrigeration appliances can be transferred through the L wiring plug 1-1, the N wiring plug 2-1, and the PE wiring plug 3-1.

[0057] like Figure 15-18 As shown, a wiring plug 6-2 is provided at one end of the power wiring 6, an L wiring limit strip 1-5 is provided on the side of the L wiring threaded hole 1-2, an N wiring limit strip 2-5 is provided on the side of the N wiring threaded hole 2-2, and a PE wiring limit strip 3-5 is provided on the side of the PE wiring threaded hole 3-2. The wiring plug 6-2 is then inserted between the L wiring limit strip 1-5 and the fixing screw 7, between the N wiring limit strip 2-5 and the fixing screw 7, and between the PE wiring limit strip 3-5 and the fixing screw 7. The fixing screw 7 is screwed into the threaded hole 3-2 to fix the wiring plug 6-2.

[0058] The L terminal 1, the N terminal 2, and the PE terminal 3 are fixed by the wiring plug 6-2 and the fixing screw 7, which can avoid incorrect wiring due to complex wiring and ensure accurate connection of the external power line and the internal power line.

[0059] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A starting thermal protector that is convenient for connecting wiring terminals, comprising an L wiring terminal (1), an N wiring terminal (2), a PE wiring terminal (3), a starter body (4) and a thermal protector (5), wherein the starter body (4) is provided with an L wiring terminal mounting groove (4-1), an N wiring terminal mounting groove (4-2), a PE wiring terminal mounting groove (4-3) and a protector mounting cavity (4-4), and the L wiring terminal (1), the N wiring terminal (2), the PE wiring terminal (3) and the thermal protector (5) are respectively mounted in the L wiring terminal mounting groove (4-1), the N wiring terminal mounting groove (4-2), the PE wiring terminal mounting groove (4-3) and the protector mounting cavity (4-4), characterized in that: The L wiring terminal (1) is provided with an L wiring plug (1-1), an L wiring threaded hole (1-2), an L wiring limit platform 1 (1-3) and an L wiring limit platform 2 (1-4); the N wiring terminal (2) is provided with an N wiring plug (2-1), an N wiring threaded hole (2-2), an N wiring limit platform 1 (2-3) and an N wiring limit platform 2 (2-4); the PE wiring terminal (3) is provided with a PE wiring plug (3-1), a PE wiring threaded hole (3-2), a PE wiring limit platform or the L wiring terminal (1) is provided with an L wiring plug-in piece (1-1), an L wiring threaded hole (1-2) and an L wiring limit strip (1-5); the N wiring terminal (2) is provided with an N wiring plug-in piece (2-1), an N wiring threaded hole (2-2) and an N wiring limit strip (2-5); and the PE wiring terminal (3) is provided with a PE wiring plug-in piece (3-1), a PE wiring threaded hole (3-2) and a PE wiring limit strip (3-5).

2. The starting thermal protector convenient for connecting the wiring terminals according to claim 1, characterized in that: The L terminal (1), the N terminal (2) and the PE terminal (3) are each connected to the power supply terminal (6) via a fixing screw (7).

3. The starting thermal protector convenient for connecting the wiring terminals according to claim 2 is characterized in that: The fixing screw (7) is threadedly connected to the L wiring threaded hole (1-2), the N wiring threaded hole (2-2), and the PE wiring threaded hole (3-2).

4. The starting thermal protector convenient for connecting the wiring terminals according to claim 2, characterized in that: One end of the power connection (6) is provided with a connection ring (6-1); the connection ring (6-1) in the L connection terminal (1) is located between the L connection limit platform 1 (1-3) and the L connection limit platform 2 (1-4); the connection ring (6-1) in the N connection terminal (2) is located between the N connection limit platform 1 (2-3) and the N connection limit platform 2 (2-4); and the connection ring (6-1) in the PE connection terminal (3) is located between the PE connection limit platform 1 (3-3) and the PE connection limit platform 2 (3-4).

5. The starting thermal protector convenient for connecting the wiring terminals according to claim 2, characterized in that: One end of the power connection (6) is provided with a connection plug (6-2); the connection plug (6-2) in the L connection terminal (1) contacts the L connection limit strip (1-5); the connection plug (6-2) in the N connection terminal (2) contacts the N connection limit strip (2-5); and the connection plug (6-2) in the PE connection terminal (3) contacts the PE connection limit strip (3-5).

6. The starting thermal protector convenient for connecting the wiring terminals according to claim 1, characterized in that: The L wiring limit platform 1 (1-3) and the L wiring limit platform 2 (1-4) are arranged at the top of the L wiring terminal (1), the N wiring limit platform 1 (2-3) and the N wiring limit platform 2 (2-4) are arranged at the top of the N wiring terminal (2), and the PE wiring limit platform 1 (3-3) and the PE wiring limit platform 2 (3-4) are arranged at the top of the PE wiring terminal (3).

7. The starting thermal protector convenient for connecting the wiring terminals according to claim 1, characterized in that: The L wiring limit strips (1-5) are arranged on the side of the L wiring terminal (1), the N wiring limit strips (2-5) are arranged on the side of the N wiring terminal (2), and the PE wiring limit strips (3-5) are arranged on the side of the PE wiring terminal (3).

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