A thermal protector with a mounting structure

Abstract

The application discloses a thermal protector with a mounting structure and belongs to the technical field of electrical elements. Mainly comprising a thermal protector body, an installation ear which is installed on the thermal protector body, an installation hole is formed in the installation ear, an installation assembly which is installed on the installation ear, the installation assembly comprises a connecting seat, the connecting seat is installed on an external heat generator, a limiting groove is formed in the upper end of the connecting seat, the connecting seat is penetrated and installed on the installation hole, an installation sleeve which is installed on the installation ear, and installation seats are installed on the two sides of the installation sleeve. The thermal protector with the mounting structure can be quickly installed through the cooperation of the connecting seat and the installation sleeve in the installation assembly and the clamping of the limiting block on the locking rod and the limiting groove of the connecting seat, the step of screwing a bolt is omitted, and the problem that it is relatively inconvenient to install the thermal protector by using a bolt is solved.

Description

Technical Field

[0001] This application relates to the field of electrical component technology, specifically a thermal protector with a mounting structure. Background Technology

[0002] A thermal protector for household appliances is an automatic protection device used to prevent electrical appliances from being damaged or causing safety accidents due to overheating. When the temperature of an appliance (such as a motor or heating element) rises abnormally due to a malfunction (such as a stuck fan, poor heat dissipation, or abnormal voltage), the thermal protector will cut off the circuit in time to prevent the appliance from burning out or even causing dangers such as fire or electric shock. The thermal protector commonly used in household appliances is the bimetallic strip thermal protector. When the temperature rises, the bimetallic strip bends and deforms due to the difference in the coefficient of thermal expansion, pushing the contacts to open and cutting off the circuit. After the temperature drops, the bimetallic strip returns to its original shape, and the contacts close again.

[0003] Some existing thermal protectors require pre-drilled mounting holes on the heating element housing before installation. The mounting ears of the thermal protector are then aligned with these holes, and bolts are used to tighten them, ensuring the bottom of the thermal protector fits snugly against the surface of the heating element. This installation is inconvenient, and the force applied during tightening must be carefully controlled. Insufficient force may result in an unstable fixation, causing the thermal protector to loosen, while excessive force may damage the mounting ears or the heating element housing, making it impractical. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a thermal protector with an installation structure.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a thermal protector with an installation structure, including a thermal protector body;

[0006] Mounting ears are installed on the thermal protector body, and mounting holes are provided on the mounting ears;

[0007] The mounting assembly is mounted on the mounting ear. The mounting assembly includes a connector, which is mounted on an external heating element. A limiting groove is formed at the upper end of the connector, and the connector is mounted through a mounting hole.

[0008] An installation sleeve is installed on the installation ear. An installation seat is installed on both sides of the installation sleeve. A through hole is opened on both sides of the installation seat. A locking rod is installed on each installation seat. A limit block is provided at the lower end of the locking rod. The limit block is snapped into the limit groove.

[0009] A limiting component is mounted on the mounting sleeve.

[0010] Furthermore, the limiting component includes a first annular plate and a second annular plate installed on the outer wall of the mounting sleeve, with an annular groove formed between the first annular plate and the second annular plate, and a rotating plate installed on the mounting sleeve, the rotating plate being installed in the annular groove.

[0011] Furthermore, limit rods are fixedly installed on both sides of the rotating plate, and a limit hole is opened at the upper end of the locking rod, with the limit rod snapped into the limit hole.

[0012] Furthermore, the rotating plate is provided with anti-slip texture.

[0013] Furthermore, a rubber pad is fixedly installed inside the mounting sleeve, and the upper end of the connecting seat is in contact with the rubber pad.

[0014] Furthermore, the rubber pad is made of silicone rubber that is resistant to high and low temperatures.

[0015] Furthermore, the locking rod is made of spring steel.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects: through the cooperation between the connecting seat and the mounting sleeve in the installation assembly, and the snap-fit ​​between the upper limit block of the locking rod and the limiting groove of the connecting seat, the installation can be completed quickly, eliminating the step of tightening bolts and solving the problem that it is inconvenient to install the thermal protector with bolts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the principle of this utility model.

[0018] Figure 2 This is a schematic diagram of the release structure of the limiting component of this utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the exploded, bottom-view structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the installation component of this utility model.

[0022] The following are the labeling elements in the figure:

[0023] 1. Thermal protector body; 2. Mounting ear; 3. Mounting assembly; 31. Mounting sleeve; 32. Mounting base; 33. Locking rod; 34. Limiting hole; 35. Through hole; 36. Limiting block; 37. Rubber pad; 38. Connecting seat; 39. Limiting groove; 4. Limiting assembly; 41. First annular plate; 42. Second annular plate; 43. Rotating plate; 44. Limiting rod; 45. Anti-slip texture; 5. Mounting hole. Detailed Implementation

[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] like Figure 1-2 As shown, this application provides a thermal protector with an installation structure, including a thermal protector body 1. The thermal protector body 1 adopts a high-insulation, high-temperature resistant plastic shell, and internally encapsulates a sensitive temperature sensing element (not shown in the figure) and a contact switch (not shown in the figure).

[0026] Temperature sensing elements are typically bimetallic strips. When the temperature of an external heating element reaches a preset threshold, the bimetallic strip deforms due to the difference in thermal expansion coefficients, pushing the contact switch to disconnect the circuit. When the temperature drops to a safe range, the bimetallic strip returns to its original shape, and the contact switch closes again, achieving an automatic reset function.

[0027] The thermal protector body 1 has integrally formed mounting ears 2 on both sides. The mounting ears 2 are made of the same material as the body and have good structural strength. Both mounting ears 2 have circular mounting holes 5. The edges of the mounting holes 5 are rounded to avoid scratching hands or related parts during installation.

[0028] like Figure 2-4 As shown, each of the two mounting ears 2 is equipped with a mounting component 3. The mounting component 3 is a key part for the rapid installation and fixation of the thermal protector, including a connecting seat 38 and a mounting sleeve 31. The connecting seat 38 is made of corrosion-resistant brass and is installed on the external heating element by welding. The upper end of the connecting seat 38 has an annular limiting groove 39 with smooth walls, which facilitates subsequent engagement with the limiting block 36 on the locking rod 33. The diameter of the connecting seat 38 is slightly smaller than the diameter of the mounting hole 5 on the mounting ear 2, allowing the connecting seat 38 to easily pass through and be installed in the mounting hole 5, thus facilitating the installation process.

[0029] The mounting sleeve 31 is fixedly mounted on the two mounting ears 2 by welding. The inner wall of the mounting sleeve 31 is clearance-fitted with the outer wall of the connecting seat 38 to ensure that the mounting sleeve 31 can be smoothly fitted onto the connecting seat 38. Mounting seats 32 are integrally formed on both sides of each mounting sleeve 31. Square through holes 35 are opened on both sides of the mounting seat 32 at its central position. A locking rod 33 is rotatably mounted on the mounting seat 32 via a pin (not shown in the figure). The locking rod 33 is made of spring steel and has good elasticity and toughness.

[0030] The lower end of the locking rod 33 is integrally formed with a limiting block 36. The shape of the limiting block 36 is adapted to the limiting groove 39 on the connecting seat 38 and has an arc structure. The size of the through hole 35 matches the limiting block 36 on the locking rod 33, providing room for the rotation of the limiting block 36.

[0031] After the mounting sleeve 31 is fitted onto the connecting seat 38, the locking rod 33 is rotated inward on the mounting sleeve 31, and the limiting block 36 can be engaged inside the limiting groove 39, thereby quickly completing the installation and fixing of the thermal protector body 1; conversely, rotating the locking rod 33 in the opposite direction can separate the limiting block 36 from the limiting groove 39, realizing the quick disassembly of the thermal protector body 1 and improving the efficiency of equipment maintenance and replacement.

[0032] like Figure 5 As shown, to enhance installation stability, a rubber pad 37 is fixedly adhered inside the mounting sleeve 31. The rubber pad 37 is made of silicone rubber that is resistant to high and low temperatures and has good elasticity. When the mounting sleeve 31 is fitted onto the connecting seat 38, the upper end of the connecting seat 38 is in close contact with the rubber pad 37, which can buffer the vibration generated during equipment operation and prevent wear between the connecting seat 38 and the mounting sleeve 31 due to hard contact.

[0033] like Figure 2-5 As shown, a limiting component 4 is also provided on the mounting sleeve 31 to limit and lock the position of the locking rod 33, preventing it from rotating unexpectedly during equipment vibration or accidental contact, which could cause the thermal protector to loosen. The limiting component 4 includes a first annular plate 41 and a second annular plate 42 fixedly installed on the outer wall of the mounting sleeve 31. Both annular plates are made of the same engineering plastic material as the mounting sleeve 31 and are integrally formed with the mounting sleeve 31 through injection molding. An annular groove (not shown in the figure) is formed between the first annular plate 41 and the second annular plate 42. The width and depth of the groove match the dimensions of the rotating plate 43.

[0034] A rotating plate 43 is rotatably mounted on the mounting sleeve 31. The rotating plate 43 is also annular and is installed in an annular groove. Its inner diameter is slightly larger than the outer diameter of the mounting sleeve 31, allowing it to rotate freely within the groove. Limiting rods 44 are integrally formed on both sides of the rotating plate 43. The limiting rods 44 are L-shaped with cylindrical ends, which are adapted to the limiting holes 34 opened at the upper end of the locking rod 33. A limiting hole 34, which is a circular through hole 35, is opened at the upper end of the locking rod 33.

[0035] When the locking rod 33 needs to be locked, push the rotating plate 43 to rotate so that the end of the limiting rod 44 is precisely engaged in the limiting hole 34, thus limiting and locking the position of the locking rod 33; when it is necessary to unlock, rotate the rotating plate 43 in the opposite direction so that the limiting rod 44 is disengaged from the limiting hole 34, thus releasing the limitation on the locking rod 33.

[0036] The outer wall of the rotating plate 43 is provided with evenly distributed anti-slip textures 45. The anti-slip textures 45 are strip-shaped protrusions that can increase the friction between the hand and the rotating plate 43, making it easy for the operator to rotate the rotating plate 43.

[0037] The working principle of this utility model is as follows: During installation, first align the mounting ears 2 on both sides of the thermal protector body 1 with the connecting seat 38. Since the diameter of the connecting seat 38 is slightly smaller than the diameter of the mounting hole 5 on the mounting ear 2, the connecting seat 38 can easily pass through the mounting hole 5. The mounting ear 2 is made of the same material as the body and has good structural strength, which can withstand the force during the installation process.

[0038] Next, the mounting sleeve 31 will smoothly fit onto the connecting seat 38, because the mounting sleeve 31 is fixed to the mounting ear 2 by welding, and its inner wall is in clearance fit with the outer wall of the connecting seat 38. On the mounting seats 32 on both sides of the mounting sleeve 31, the locking rod 33 is rotatably mounted by a pin. The locking rod 33 is made of spring steel, which has good elasticity and toughness and can rotate flexibly.

[0039] After the installation sleeve 31 is in place, rotate the locking rod 33 inward. The arc-shaped limiting block 36 integrally formed at the lower end of the locking rod 33 is adapted to the limiting groove 39 on the connecting seat 38 and is engaged inside the limiting groove 39, thus completing the initial installation and fixing of the thermal protector body 1.

[0040] To further ensure that the locking lever 33 will not rotate due to vibration or accidental contact during equipment operation, the limiting component 4 on the mounting sleeve 31 plays a crucial role. The first annular plate 41 and the second annular plate 42 on the outer wall of the mounting sleeve 31 are made of the same engineering plastic material as the mounting sleeve 31 and are integrally molded by injection molding. The width and depth of the annular groove formed between the two are matched with the dimensions of the rotating plate 43.

[0041] The rotating plate 43 has an annular structure and is installed in an annular groove. Its inner diameter is slightly larger than the outer diameter of the mounting sleeve 31, allowing it to rotate flexibly. When the locking rod 33 is in the locked state, the rotating plate 43 is pushed so that the ends of the L-shaped limiting rods 44 on both sides are engaged in the circular limiting holes 34 opened at the upper end of the locking rod 33, thereby limiting and locking the position of the locking rod 33 and ensuring the stability of the installation.

[0042] Meanwhile, a layer of silicone rubber pad 37 is fixedly adhered inside the mounting sleeve 31, which has high and low temperature resistance and good elasticity. When the mounting sleeve 31 is fitted onto the connecting seat 38, the upper end of the connecting seat 38 is in close contact with the rubber pad 37. When the equipment vibrates during operation, the rubber pad 37 can effectively buffer the vibration with its own elasticity, avoiding wear between the connecting seat 38 and the mounting sleeve 31 due to hard contact, thus extending the service life of the components.

[0043] During disassembly, the operation process is the reverse of installation. First, rotate the rotating plate 43 in the opposite direction to disengage the end of the limiting rod 44 from the limiting hole 34 of the locking rod 33, thus releasing the limiting of the locking rod 33. Then, rotate the locking rod 33 in the opposite direction to the outside of the mounting sleeve 31. The limiting block 36 at the lower end of the locking rod 33 will then separate from the limiting groove 39 on the connecting seat 38. At this point, the thermal protector body 1 can be easily removed from the connecting seat 38, achieving rapid disassembly of the thermal protector body 1. This greatly improves the efficiency of equipment maintenance and replacement and reduces downtime.

[0044] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thermal protector with an installation structure, characterized in that: include Thermal protector body (1); Mounting ear (2) is mounted on the thermal protector body (1), and mounting ear (2) is provided with mounting hole (5); Mounting assembly (3) is mounted on mounting ear (2). Mounting assembly (3) includes connecting seat (38), which is mounted on external heating element. A limiting groove (39) is provided at the upper end of connecting seat (38), and connecting seat (38) is mounted through mounting hole (5). The mounting sleeve (31) is mounted on the mounting ear (2). Mounting seats (32) are mounted on both sides of the mounting sleeve (31). Through holes (35) are opened on both sides of the mounting seats (32). Locking rods (33) are mounted on the mounting seats (32). A limit block (36) is provided at the lower end of the locking rod (33). The limit block (36) is snapped into the limit groove (39). Limiting component (4) is mounted on the mounting sleeve (31).

2. A thermal protector with an installation structure according to claim 1, characterized in that: The limiting component (4) includes a first annular plate (41) and a second annular plate (42) installed on the outer wall of the mounting sleeve (31), an annular groove is formed between the first annular plate (41) and the second annular plate (42), and a rotating plate (43) is installed on the mounting sleeve (31), the rotating plate (43) is installed in the annular groove.

3. A thermal protector with an installation structure according to claim 2, characterized in that: Limiting rods (44) are fixedly installed on both sides of the rotating plate (43), and a limiting hole (34) is opened at the upper end of the locking rod (33). The limiting rod (44) is snapped into the limiting hole (34).

4. A thermal protector with an installation structure according to claim 3, characterized in that: The rotating plate (43) is provided with anti-slip texture (45).

5. A thermal protector with an installation structure according to claim 1, characterized in that: A rubber pad (37) is fixedly installed inside the mounting sleeve (31), and the upper end of the connecting seat (38) is in contact with the rubber pad (37).

6. A thermal protector with an installation structure according to claim 5, characterized in that: The rubber pad (37) is made of silicone rubber that is resistant to high and low temperatures.

7. A thermal protector with an installation structure according to claim 1, characterized in that: The locking rod (33) is made of spring steel.

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