Closed thermal protector

Abstract

The utility model belongs to the technical field of thermal protectors, and particularly relates to a closed thermal protector, which aims at solving the problems of poor protection effect, low wiring efficiency and inconvenience in replacement in the background technology, and comprises a thermal relay and an alternating current contactor, a transparent protective cover is hinged to the outer wall of one side of the thermal relay, and the alternating current contactor is hinged to the transparent protective cover. A buckling strip is arranged on the outer wall of one side of the transparent protective cover. The transparent protective cover can well protect the coded disc and the reset disconnection button, the stability of the thermal protector during operation is ensured, after the wire inlet terminal is inserted into the wiring port, signal connection can be realized by utilizing the magnetic attraction of the first magnetic sheet and the second magnetic sheet between the thermal relay and the alternating current contactor, the structure is stable, and the service life of the thermal protector is prolonged. The heat protector is simple in structure, the wiring end is not easy to loosen, the wiring efficiency is improved, the alternating current contactor is fixed by clamping the inner groove on the alternating current contactor on the clamping bar, the heat protector can be taken away only by separating the inner groove from the clamping bar with force, and the heat protector is very convenient to disassemble.

Description

Technical Field

[0001] This utility model relates to the field of thermal protector technology, and in particular to a sealed thermal protector. Background Technology

[0002] A thermal protector is a temperature-sensitive device that interrupts the circuit when the temperature of equipment or components exceeds a predefined limit. It serves as a safety mechanism to prevent equipment from overheating and reduce the risk of fire.

[0003] Thermal protectors are typically composed of a thermal relay and an AC contactor, with the thermal relay connected to the AC contactor for use. However, the following problems arise during use:

[0004] First, the encoder, reset button, and disconnect button on the thermal relay are all adjustable. Without a protective structure, the protection effect of the protector can be easily affected.

[0005] Meanwhile, the traditional connection between old-fashioned thermal relays and AC contactors is mainly through signal lines. However, this wiring method is not only prone to loosening at the terminals, but also slow in wiring efficiency.

[0006] In addition, thermal protectors are usually installed by using multiple fastening bolts to fix them to the wall or cabinet. Once fixed, they are difficult to disassemble and inconvenient to replace. Utility Model Content

[0007] In view of the shortcomings of the prior art, this utility model provides a sealed thermal protector, which overcomes the shortcomings of the prior art and effectively solves the problems of poor protection effect, slow wiring efficiency and inconvenient replacement.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A sealed thermal protector includes a thermal relay and an AC contactor. A transparent protective cover is hinged to one side of the outer wall of the thermal relay, and a buckle is provided on one side of the outer wall of the transparent protective cover. Symmetrically distributed anti-slip strips are provided on one side of the outer wall of the thermal relay.

[0010] A first magnetic sheet is adhered to the outer wall of the thermal relay on the other side, and a second magnetic sheet is adhered to the outer wall of the AC contactor on one side, with the first and second magnetic sheets being magnetically connected.

[0011] The other side of the AC contactor has symmetrically distributed inner grooves, and the inner wall of the inner groove is fitted with a clip, and a fixing plate is welded to the outer wall of one side of the clip.

[0012] Preferably, both anti-slip strips are tightly attached to the inner wall of the transparent protective cover.

[0013] Preferably, the outer wall of the thermal relay is connected to equally spaced input terminals, and the outer wall of the AC contactor is provided with equally spaced wiring ports, with the input terminals inserted into the inner wall of the wiring ports.

[0014] Preferably, a code disk is provided on one side of the outer wall of the thermal relay.

[0015] Preferably, a reset disconnect button is provided on one side of the outer wall of the thermal relay, located on the side of the encoder disk.

[0016] Preferably, the outer wall of the thermal relay on one side is provided with equally spaced output terminals located at the bottom of the code disk.

[0017] Preferably, the top outer wall of the AC contactor is screwed with locking knobs that are evenly distributed.

[0018] Preferably, the bottom outer wall of the AC contactor has symmetrically distributed mounting grooves.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. The sealed thermal protector in this design has a transparent protective cover installed on the thermal relay. The transparent protective cover can effectively protect the code disk and reset disconnect button, ensuring the stability of the thermal protector during operation. In addition, the anti-slip strip adheres to the transparent protective cover to prevent it from shaking. The transparent protective cover can be easily opened by pressing the strip, making it easy to operate.

[0021] 2. The sealed thermal protector designed in this way can achieve signal connection by utilizing the magnetic attraction between the first and second magnetic sheets between the thermal relay and the AC contactor after the input terminal is inserted into the wiring port. It not only has a stable structure and is not easy to loosen at the wiring terminal, but also improves the wiring efficiency.

[0022] 3. The sealed thermal protector of this design has a fixing plate that can be pre-fixed to the wall or cabinet. The AC contactor is fixed by snapping the inner groove on the card slot. The thermal protector can be removed by simply separating the inner groove and the card slot. Disassembly is very convenient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a sealed thermal protector proposed in this utility model.

[0024] Figure 2 This is a breakdown diagram of the overall structure of a sealed thermal protector proposed in this utility model. Figure 1 ;

[0025] Figure 3 This is a breakdown diagram of the overall structure of a sealed thermal protector proposed in this utility model. Figure 2 .

[0026] In the diagram: 1. Thermal relay; 2. AC contactor; 3. Transparent protective cover; 4. Buckle strip; 5. Anti-slip strip; 6. First magnetic plate; 7. Second magnetic plate; 8. Input terminal; 9. Wiring port; 10. Inner groove; 11. Card block; 12. Fixing plate; 13. Code disk; 14. Reset disconnect button; 15. Output terminal; 16. Locking knob; 17. Mounting slot. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1, refer to Figure 1 A sealed thermal protector includes a thermal relay 1 and an AC contactor 2. A transparent protective cover 3 is hinged to one side of the outer wall of the thermal relay 1, and a buckle 4 is provided on one side of the outer wall of the transparent protective cover 3. Symmetrically distributed anti-slip strips 5 are provided on one side of the outer wall of the thermal relay 1.

[0029] In this embodiment, a transparent protective cover 3 is installed on the thermal relay 1. The transparent protective cover 3 can effectively protect the code disk 13 and the reset disconnect button 14, ensuring the stability of the thermal protector during operation. In addition, the anti-slip strip 5 adheres to the transparent protective cover 3 to prevent it from shaking. The buckle 4 can be used to easily open the transparent protective cover 3, making the operation convenient.

[0030] Example 2, refer to Figure 2-3 A sealed thermal protector, wherein a first magnetic sheet 6 is bonded to the outer wall of the thermal relay 1 on the other side, and a second magnetic sheet 7 is bonded to the outer wall of the AC contactor 2 on one side, and the first magnetic sheet 6 and the second magnetic sheet 7 are magnetically connected.

[0031] In this embodiment, when the input terminal 8 is inserted into the wiring port 9, the signal connection can be achieved by utilizing the magnetic attraction between the first magnetic piece 6 and the second magnetic piece 7 between the thermal relay 1 and the AC contactor 2. This not only ensures structural stability and prevents the wiring terminal from becoming loose, but also improves wiring efficiency.

[0032] Example 3, referring to Figure 2-3 A sealed thermal protector, wherein the outer wall of the AC contactor 2 is provided with symmetrically distributed inner grooves 10, and the inner wall of the inner grooves 10 is fitted with a retaining plate 11, and a fixing plate 12 is welded to the outer wall of one side of the retaining plate 11.

[0033] In this embodiment, the fixing plate 12 can be pre-fixed to the wall or cabinet. The AC contactor 2 is fixed by snapping the inner groove 10 on the card slot 11. The thermal protector can be removed by simply separating the inner groove 10 and the card slot 11. Disassembly is very convenient.

[0034] Reference Figure 1 Both anti-slip strips 5 are tightly attached to the inner wall of the transparent protective cover 3.

[0035] Reference Figure 2-3 The outer wall of the thermal relay 1 is connected to equally spaced input terminals 8, and the outer wall of the AC contactor 2 is provided with equally spaced wiring ports 9, with the input terminals 8 inserted into the inner wall of the wiring ports 9.

[0036] Reference Figure 1 A code disk 13 is provided on one side of the outer wall of the thermal relay 1.

[0037] Reference Figure 1 A reset disconnect button 14 is provided on one side of the outer wall of the thermal relay 1, located on one side of the encoder 13.

[0038] Reference Figure 1 The outer wall of one side of the thermal relay 1 is provided with equally spaced output terminals 15 located at the bottom of the code disk 13.

[0039] Reference Figure 1 The top outer wall of the AC contactor 2 is screwed with locking knobs 16 that are evenly distributed.

[0040] Reference Figure 1 The bottom outer wall of the AC contactor 2 has symmetrically distributed mounting grooves 17.

[0041] Working principle: First, the fixing plate 12 can be fixed to the wall or cabinet. Then, the inner groove 10 on the AC contactor 2 is snapped onto the card slot 11. Since a transparent protective cover 3 is installed on the thermal relay 1, the transparent protective cover 3 can effectively protect the code disk 13 and the reset disconnect button 14. The anti-slip strip 5 adheres to the transparent protective cover 3 to prevent it from shaking. At the same time, the buckle 4 can be used to easily open the transparent protective cover 3. After the wire terminal 8 is inserted into the wiring port 9, the signal connection can be achieved by using the magnetic attraction between the first magnetic piece 6 and the second magnetic piece 7 between the thermal relay 1 and the AC contactor 2.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealed thermal protector, comprising a thermal relay (1) and an AC contactor (2), characterized in that, A transparent protective cover (3) is hinged to one side of the outer wall of the thermal relay (1), and a buckle (4) is provided on one side of the outer wall of the transparent protective cover (3). A symmetrically distributed anti-slip strip (5) is provided on one side of the outer wall of the thermal relay (1). A first magnetic sheet (6) is bonded to the outer wall of the other side of the thermal relay (1), and a second magnetic sheet (7) is bonded to the outer wall of one side of the AC contactor (2). The first magnetic sheet (6) and the second magnetic sheet (7) are magnetically connected. The AC contactor (2) has symmetrically distributed inner grooves (10) on the outer wall of the other side, and a retaining plate (11) is snapped into the inner wall of the inner groove (10). A fixing plate (12) is welded to the outer wall of one side of the retaining plate (11).

2. The sealed thermal protector according to claim 1, characterized in that, Both anti-slip strips (5) are tightly attached to the inner wall of the transparent protective cover (3).

3. A sealed thermal protector according to claim 1, characterized in that, The thermal relay (1) has equally spaced input terminals (8) connected to the outer wall on the other side, and the AC contactor (2) has equally spaced wiring ports (9) on one side of its outer wall, with the input terminals (8) inserted into the inner wall of the wiring ports (9).

4. A sealed thermal protector according to claim 1, characterized in that, The thermal relay (1) has a code disk (13) on one side of its outer wall.

5. A sealed thermal protector according to claim 1, characterized in that, A reset disconnect button (14) is provided on one side of the outer wall of the thermal relay (1) located on one side of the code disk (13).

6. A sealed thermal protector according to claim 1, characterized in that, The outer wall of the thermal relay (1) is provided with equally spaced output terminals (15) at the bottom of the code disk (13).

7. A sealed thermal protector according to claim 1, characterized in that, The AC contactor (2) has locking knobs (16) that are evenly distributed on its top outer wall.

8. A sealed thermal protector according to claim 1, characterized in that, The bottom outer wall of the AC contactor (2) is provided with symmetrically distributed mounting grooves (17).

Images