A starting thermal protector with switchable wiring terminals

Abstract

The utility model relates to a starter thermal protector with convertible wiring terminals. The utility model includes a starter and a thermal protector, the thermal protector is installed on the starter, the starter is provided with a first starter pin, a second starter pin, an L wiring terminal, an N wiring terminal and a PE wiring terminal, the thermal protector is provided with a thermal protector connecting pin, the first starter pin is provided with a first starter wiring plug, the second starter pin is provided with a second starter wiring plug, the thermal protector connecting pin is provided with a thermal protector No. 1 wiring plug and a thermal protector No. 2 wiring plug, and the structural characteristics are: the L wiring terminal is provided with an L wiring terminal wiring plug and an L wiring terminal threaded wiring terminal, the N wiring terminal is provided with an N wiring terminal wiring plug and an N wiring terminal threaded wiring terminal, and the PE wiring terminal is provided with a PE wiring terminal No. 1 wiring plug, a PE wiring terminal No. 2 wiring plug and a PE wiring terminal threaded wiring terminal.

Description

Technical Field

[0001] The utility model relates to a starting thermal protector with switchable wiring terminals, which 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] At present, the traditional compressors on the market are equipped with two devices, namely the thermal protector and the starter. With the development of the market, the live wire, the neutral wire, the ground wire and other wires in the refrigeration appliances of various companies are connected or transferred on the two devices. There are various ways of connection, including screw fixing, plug-in connection, etc. At the same time, the sizes of the connecting wires are different to prevent misconnection of complex lines.

[0003] The two devices in the prior art are a thermal protector and a starter (such as Figure 1 As shown in the figure), the starter first pin 11, the starter second pin 12, the L terminal 13, the N terminal 14, and the thermal protector connection pin 21 have a single connection method, which is plug-in connection and the plugs are of the same size. It is easy to make mistakes during wiring and cannot meet the needs of different users. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings in the prior art and provide a start-up thermal protector with switchable wiring terminals with a reasonable structural design. The start-up thermal protector satisfies the user's convenience in matching with it during connection and installation, improves online production efficiency, avoids wiring errors caused by complex wiring, and also considers the rationality, safety and applicability of the terminal layout.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: the starting thermal protector with convertible wiring terminals comprises a starter and a thermal protector, the thermal protector is installed on the starter, the starter is provided with a first starter pin, a second starter pin, an L wiring terminal, an N wiring terminal and a PE wiring terminal, the thermal protector is provided with a thermal protector connecting pin, the first starter pin is provided with a first starter wiring plug-in, the second starter pin is provided with a second starter wiring plug-in, the thermal protector connecting pin is provided with a thermal protector No. 1 wiring plug-in and a thermal protector No. 2 wiring plug-in, and its structural characteristics are: the L wiring terminal is provided with an L wiring terminal wiring plug-in and an L wiring terminal threaded wiring terminal, the N wiring terminal is provided with an N wiring terminal wiring plug-in and an N wiring terminal threaded wiring terminal, and the PE wiring terminal is provided with a PE wiring terminal No. 1 wiring plug-in, a PE wiring terminal No. 2 wiring plug-in and a PE wiring terminal threaded wiring terminal.

[0006] Furthermore, the L terminal is connected to the power supply wiring in a plug-in manner through an L terminal wiring plug, or the L terminal is connected to the power supply wiring in a screw-fixed manner through an L terminal threaded terminal.

[0007] Furthermore, the N terminal is connected to the power supply wiring in a plug-in manner through an N terminal wiring plug-in, or the N terminal is connected to the power supply wiring in a screw-fixed manner through an N terminal threaded terminal.

[0008] Furthermore, the PE terminal is connected to the power supply wiring by means of plugging through the PE terminal No. 1 wiring plug and the PE terminal No. 2 wiring plug, or the PE terminal is connected to the power supply wiring by means of screw fixing through the PE terminal threaded terminal.

[0009] Furthermore, the width of the first starter wiring plug, the second starter wiring plug, the L terminal wiring plug, the N terminal wiring plug, the PE terminal No. 1 wiring plug, the PE terminal No. 2 wiring plug, the thermal protector No. 1 wiring plug, and the thermal protector No. 2 wiring plug are all L, and L is 4.8 mm or 6.4 mm.

[0010] Furthermore, the widths of all the inserts are equal, or the widths of some of the inserts are equal.

[0011] Compared with the prior art, the utility model has the following advantages: the wiring connection terminals on the starter and the thermal protector are transformed from fixed modes and uniform shapes and sizes into structures of different sizes and multiple connection methods, and can be connected by screw fixing and plug connection, and can be combined in various ways through the different sizes of the connecting terminal plug structure, and the wiring combined by various plug-in methods and the screw fixing wiring can better avoid wiring errors and meet the needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a three-dimensional structural diagram of a starting thermal protector in the prior art.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the starting thermal protector of Example 1 of the utility model.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the starting thermal protector of Example 2 of the utility model.

[0015] Figure 4 It is a structural schematic diagram of the first pin of the starter of Embodiments 1 and 2 of the utility model.

[0016] Figure 5 It is a schematic structural diagram of the second pin of the starter of Embodiments 1 and 2 of the present utility model.

[0017] Figure 6 It is a schematic diagram of the structure of the L terminal of embodiments 1 and 2 of the present utility model.

[0018] Figure 7 It is a schematic diagram of the structure of the PE terminal of embodiments 1 and 2 of the present utility model.

[0019] Figure 8 It is a schematic diagram of the structure of the connecting pins of Embodiments 1 and 2 of the present utility model.

[0020] Fig. 9 It is a structural schematic diagram of the N terminal of Example 1 of the utility model.

[0021] Fig.10 It is a structural schematic diagram of the N terminal of Example 2 of the utility model.

[0022] In the figure: starter 1, thermal protector 2,

[0023] Starter first pin 11, starter second pin 12, L terminal 13, N terminal 14, PE terminal 15,

[0024] Thermal protector connection pin 21,

[0025] Starter first terminal plug 11-1,

[0026] Starter second terminal plug 12-1,

[0027] L terminal plug 13-1, L terminal thread terminal 13-2,

[0028] N terminal plug 14-1, N terminal threaded terminal 14-2,

[0029] PE terminal No. 1 plug 15-1, PE terminal No. 2 plug 15-2, PE terminal threaded terminal 15-3,

[0030] Thermal protector No. 1 wiring plug 21 - 1 and thermal protector No. 2 wiring plug 21 - 2 . DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] Example 1 (such as Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 as shown).

[0034] The starter thermal protector with convertible terminal in this embodiment includes a starter 1 and a thermal protector 2. The thermal protector 2 is installed on the starter 1. The starter 1 is provided with a first starter pin 11, a second starter pin 12, an L terminal 13, an N terminal 14 and a PE terminal 15. The thermal protector 2 is provided with a thermal protector connection pin 21. The internal circuit connection relationship and working principle of the starter 1 are prior art, such as a multi-terminal PTC starter suitable for a small installation space disclosed in Application No. 202222758734.9.

[0035] In this embodiment, the first starter pin 11 is provided with a first starter wiring plug 11-1, the second starter pin 12 is provided with a second starter wiring plug 12-1, the thermal protector connecting pin 21 is provided with a thermal protector No. 1 wiring plug 21-1 and a thermal protector No. 2 wiring plug 21-2, the L terminal 13 is provided with an L terminal wiring plug 13-1 and an L terminal threaded terminal 13-2, the N terminal 14 is provided with an N terminal wiring plug 14-1 and an N terminal threaded terminal 14-2, and the PE terminal 15 is provided with a PE terminal No. 1 wiring plug 15-1, a PE terminal No. 2 wiring plug 15-2 and a PE terminal threaded terminal 15-3.

[0036] The L terminal 13 in this embodiment is connected to the power supply wiring by means of a plug-in method through the L terminal wiring plug 13-1, or the L terminal 13 is connected to the power supply wiring by means of a screw fixation method through the L terminal threaded terminal 13-2; through the threaded terminal and the plug-in terminal, the power supply can be selectively connected or the power supply can be switched.

[0037] The N terminal 14 in this embodiment is connected to the power supply wiring by means of a plug-in method through the N terminal wiring plug 14-1, or the N terminal 14 is connected to the power supply wiring by means of a screw fixation method through the N terminal threaded terminal 14-2; through the threaded terminal and the plug-in terminal, the power supply can be selectively connected or the power supply can be transferred.

[0038] The PE terminal 15 in this embodiment is connected to the power supply wiring by means of plug-in through the PE terminal No. 1 wiring plug 15-1 and the PE terminal No. 2 wiring plug 15-2, or the PE terminal 15 is connected to the power supply wiring by means of screw fixing through the PE terminal threaded terminal 15-3; the power supply or the power adapter can be selectively connected through the threaded terminal and the plug-in terminal.

[0039] In this embodiment, the width of the starter first wiring plug 11-1, the starter second wiring plug 12-1, the L terminal wiring plug 13-1, the N terminal wiring plug 14-1, the PE terminal No. 1 wiring plug 15-1, the PE terminal No. 2 wiring plug 15-2, the thermal protector No. 1 wiring plug 21-1, and the thermal protector No. 2 wiring plug 21-2 are all L, L is 4.8mm or 6.4mm, and the width of all plugs is equal, or the width of some of the plugs is equal.

[0040] Specifically, the starter first wiring plug 11-1, the starter second wiring plug 12-1, the L terminal wiring plug 13-1, the N terminal wiring plug 14-1, the PE terminal No. 1 wiring plug 15-1, the PE terminal No. 2 wiring plug 15-2, the thermal protector No. 1 wiring plug 21-1, and the thermal protector No. 2 wiring plug 21-2 in the starting thermal protector can all be connected to the power supply wiring by means of screw fixing connection or plug connection, or some of the plugs can be connected to the power supply wiring by means of screw fixing connection and other plugs can be connected to the power supply wiring by means of plug connection.

[0041] The wiring connection terminals on the starter 1 and the thermal protector 2 are transformed from fixed modes and uniform shapes and sizes into structures of different sizes and multiple connection methods. Screw-fixed connection and plug-in connection can be adopted. Various combinations can be made through different sizes of connection terminal plug structures to meet user needs. For example, starter 1 and thermal protector 2 all use 6.4mm connection plugs or all use 4.8mm connection plugs, or starter 1 uses 6.4mm connection plugs and thermal protector 2 uses 4.8mm connection plugs, or starter 1 uses 4.8mm connection plugs and thermal protector 2 uses 6.4mm connection plugs. In addition, the L terminal, N terminal and PE terminal on the starter 1 can be further distinguished by size combination, etc.

[0042] "Convertible terminal blocks" means that they can be converted arbitrarily by plug-in connection or screw fixation during wiring.

[0043] Example 2 (such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig.10 as shown).

[0044] The starter thermal protector with convertible terminal in this embodiment includes a starter 1 and a thermal protector 2. The thermal protector 2 is installed on the starter 1. The starter 1 is provided with a first starter pin 11, a second starter pin 12, an L terminal 13, an N terminal 14 and a PE terminal 15. The thermal protector 2 is provided with a thermal protector connection pin 21. The internal circuit connection relationship and working principle of the starter 1 are prior art, such as a multi-terminal PTC starter suitable for a small installation space disclosed in Application No. 202222758734.9.

[0045] In this embodiment, the first starter pin 11 is provided with a first starter wiring plug 11-1, the second starter pin 12 is provided with a second starter wiring plug 12-1, the thermal protector connecting pin 21 is provided with a thermal protector No. 1 wiring plug 21-1 and a thermal protector No. 2 wiring plug 21-2, the L terminal 13 is provided with an L terminal wiring plug 13-1 and an L terminal threaded terminal 13-2, the N terminal 14 is provided with an N terminal wiring plug 14-1 and an N terminal threaded terminal 14-2, and the PE terminal 15 is provided with a PE terminal No. 1 wiring plug 15-1, a PE terminal No. 2 wiring plug 15-2 and a PE terminal threaded terminal 15-3.

[0046] The L terminal 13 in this embodiment is connected to the power supply wiring by means of a plug-in method through the L terminal wiring plug 13-1, or the L terminal 13 is connected to the power supply wiring by means of a screw fixation method through the L terminal threaded terminal 13-2; through the threaded terminal and the plug-in terminal, the power supply can be selectively connected or the power supply can be switched.

[0047] The N terminal 14 in this embodiment is connected to the power supply wiring by means of a plug-in method through the N terminal wiring plug 14-1, or the N terminal 14 is connected to the power supply wiring by means of a screw fixation method through the N terminal threaded terminal 14-2; through the threaded terminal and the plug-in terminal, the power supply can be selectively connected or the power supply can be transferred.

[0048] The PE terminal 15 in this embodiment is connected to the power supply wiring by means of plug-in through the PE terminal No. 1 wiring plug 15-1 and the PE terminal No. 2 wiring plug 15-2, or the PE terminal 15 is connected to the power supply wiring by means of screw fixing through the PE terminal threaded terminal 15-3; the power supply or the power adapter can be selectively connected through the threaded terminal and the plug-in terminal.

[0049] In this embodiment, the width of the starter first wiring plug 11-1, the starter second wiring plug 12-1, the L terminal wiring plug 13-1, the N terminal wiring plug 14-1, the PE terminal No. 1 wiring plug 15-1, the PE terminal No. 2 wiring plug 15-2, the thermal protector No. 1 wiring plug 21-1, and the thermal protector No. 2 wiring plug 21-2 are all L, L is 4.8mm or 6.4mm, and the width of all plugs is equal, or the width of some of the plugs is equal.

[0050] Specifically, the starter first wiring plug 11-1, the starter second wiring plug 12-1, the L terminal wiring plug 13-1, the N terminal wiring plug 14-1, the PE terminal No. 1 wiring plug 15-1, the PE terminal No. 2 wiring plug 15-2, the thermal protector No. 1 wiring plug 21-1, and the thermal protector No. 2 wiring plug 21-2 in the starting thermal protector can all be connected to the power supply wiring by means of screw fixing connection or plug connection, or some of the plugs can be connected to the power supply wiring by means of screw fixing connection and other plugs can be connected to the power supply wiring by means of plug connection.

[0051] The wiring connection terminals on the starter 1 and the thermal protector 2 are transformed from fixed modes and uniform shapes and sizes into structures of different sizes and multiple connection methods. Screw-fixed connection and plug-in connection can be adopted. Various combinations can be made through different sizes of connection terminal plug structures to meet user needs. For example, starter 1 and thermal protector 2 all use 6.4mm connection plugs or all use 4.8mm connection plugs, or starter 1 uses 6.4mm connection plugs and thermal protector 2 uses 4.8mm connection plugs, or starter 1 uses 4.8mm connection plugs and thermal protector 2 uses 6.4mm connection plugs. In addition, the L terminal, N terminal and PE terminal on the starter 1 can be further distinguished by size combination, etc.

[0052] "Convertible terminal blocks" means that they can be converted arbitrarily by plug-in connection or screw fixation during wiring.

[0053] 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 starter thermal protector with switchable terminal blocks, comprising a starter (1) and a thermal protector (2), wherein the thermal protector (2) is mounted on the starter (1), wherein the starter (1) is provided with a first starter pin (11), a second starter pin (12), an L terminal (13), an N terminal (14) and a PE terminal (15), wherein the thermal protector (2) is provided with a thermal protector connecting pin (21), wherein the first starter pin (11) is provided with a first starter connecting plug-in sheet (11-1), the second starter pin (12) is provided with a second starter connecting plug-in sheet (12-1), and the thermal protector connecting pin (21) is provided with a first thermal protector connecting plug-in sheet (21-1) and a second thermal protector connecting plug-in sheet (21-2), wherein: The L terminal (13) is provided with an L terminal wiring plug (13-1) and an L terminal threaded terminal (13-2), the N terminal (14) is provided with an N terminal wiring plug (14-1) and an N terminal threaded terminal (14-2), and the PE terminal (15) is provided with a PE terminal No. 1 wiring plug (15-1), a PE terminal No. 2 wiring plug (15-2) and a PE terminal threaded terminal (15-3).

2. The starting thermal protector with switchable connection terminals according to claim 1 is characterized in that: The L terminal (13) is connected to the power supply wiring by plugging through an L terminal wiring plug (13-1), or the L terminal (13) is connected to the power supply wiring by screw fixing through an L terminal threaded terminal (13-2).

3. The starting thermal protector with switchable connection terminals according to claim 1 is characterized in that: The N terminal (14) is connected to the power supply wiring in a plug-in manner via an N terminal wiring plug (14-1), or the N terminal (14) is connected to the power supply wiring in a screw-fixed manner via an N terminal threaded terminal (14-2).

4. The starting thermal protector with switchable connection terminals according to claim 1 is characterized in that: The PE terminal (15) is connected to the power supply wiring by plugging through a PE terminal No. 1 wiring plug-in piece (15-1) and a PE terminal No. 2 wiring plug-in piece (15-2), or the PE terminal (15) is connected to the power supply wiring by screw fixing through a PE terminal threaded terminal (15-3).

5. The starting thermal protector with switchable connection terminals according to claim 1, characterized in that: The width of the starter first wiring plug (11-1), the starter second wiring plug (12-1), the L terminal wiring plug (13-1), the N terminal wiring plug (14-1), the PE terminal No. 1 wiring plug (15-1), the PE terminal No. 2 wiring plug (15-2), the thermal protector No. 1 wiring plug (21-1), and the thermal protector No. 2 wiring plug (21-2) are all L, and L is 4.8 mm or 6.4 mm.

6. The starting thermal protector with switchable connection terminals according to claim 5, characterized in that: All the inserts have the same width, or some of the inserts have the same width.

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