Power-off reset thermal protector mounting structure

Abstract

This application discloses a mounting structure for a power-off reset thermal protector, relating to the field of thermal protector technology. It includes a mounting base installed in electrical equipment, a fixing groove for placing the thermal protector body within the mounting base, and a connecting groove at one end of the mounting base communicating with the fixing groove. The inner wall of the connecting groove corresponds to the wires connected to the thermal protector body. A housing corresponding to the thermal protector body is mounted on the mounting base, and a stop plate abutting against the thermal protector body is provided on the inner wall of the housing. An elastic element is provided between the stop plate and the housing, and a buffer pad abutting against the thermal protector body is provided on the inner wall of the fixing groove. The housing and mounting base are connected through the stop plate and the elastic element to form an elastic abutment structure, which, together with the buffer pad on the inner wall of the fixing groove, fixes the thermal protector body. The elastic buffer absorbs external vibrations or impacts, reducing damage to the thermal protector caused by shaking or collisions, and ensuring the overall stability of the thermal protector during installation in the electrical equipment.

Description

Technical Field

[0001] This application relates to the field of thermal protector technology, and in particular to the mounting structure of a power-off reset thermal protector. Background Technology

[0002] Thermal protectors, as core components for the safe operation of electrical equipment, are widely used in motors, transformers, power adapters and other fields. Their core function is to cut off the circuit when the equipment temperature rises abnormally, so as to prevent overheating from causing fires or equipment damage.

[0003] The power failure reset protector triggers the contact to open by the thermal deformation of two metal composite sheets with different coefficients of thermal expansion. During normal operation, the spring keeps the moving contact in close contact with the stationary contact. When overloaded, the temperature rises and the bimetallic strip bends, pushing the moving contact away from the stationary contact to cut off the circuit. After the power is disconnected, the temperature drops and the bimetallic strip returns to its original position, causing the moving contact to re-contact the stationary contact and reset the thermal protector.

[0004] Regarding the aforementioned technologies, the inventors believe that when thermal protectors are connected to electrical equipment, the metal terminals of the thermal protector are usually connected to the wires to fix the thermal protector. However, the thermal protector is prone to shaking and colliding with other structures in the electrical equipment, which can lead to malfunction. Utility Model Content

[0005] The purpose of this application is to provide an installation structure for a power-off reset thermal protector, in order to improve the problem that the thermal protector's metal terminals are directly connected to the wires in the electrical equipment, and that the thermal protector is prone to shaking and colliding with other structures in the electrical equipment, resulting in failure.

[0006] The installation structure of the power failure reset thermal protector provided in this application adopts the following technical solution: A power failure reset thermal protector mounting structure includes a mounting base installed in an electrical device. The mounting base has a fixing groove for placing the thermal protector body. One end of the mounting base has a communicating groove communicating with the fixing groove. The inner wall of the communicating groove corresponds to the wires connected to the thermal protector body. A housing corresponding to the thermal protector body is provided on the mounting base. The inner wall of the housing has a stop plate that abuts against the thermal protector body. An elastic element is provided between the stop plate and the housing. A buffer pad that abuts against the thermal protector body is provided on the inner wall of the fixing groove.

[0007] By adopting the above technical solution, the mounting base is fixed in the electrical equipment, and the thermal protector is installed in the fixing groove of the mounting base. The shell is connected to the mounting base and forms an elastic clamping structure through the abutment plate and elastic element. With the buffer pad on the inner side wall of the fixing groove, the thermal protector body can be tightly fixed, and the external vibration or impact can be absorbed through elastic buffering, reducing the damage to the protector caused by shaking or collision, and ensuring the overall stability of the thermal protector installed in the electrical equipment.

[0008] Optionally, mounting plates extend from both sides of the mounting base, and the two sides of the housing are bent to abut against the mounting plates. A bent engaging plate is provided at one end of the mounting base away from the connecting groove, which abuts against the end of the housing. A slot is provided at the other end of the mounting base, and an insert plate corresponding to the slot is provided at the end of the housing.

[0009] By adopting the above technical solution, the mounting plate abuts against the bent part of the housing, providing initial guidance and limiting for the installation of the housing. The bent locking plate engages with the end of the housing, and the insert plate at the other end of the housing is inserted into the slot of the mounting base, so that the housing is quickly fastened to the mounting base and maintains a stable connection, effectively preventing the housing from loosening, and at the same time facilitating the maintenance and replacement of the thermal protector.

[0010] Optionally, the mounting plate has a groove along its length, and the housing has guide plates on both sides that fit against the inner wall of the groove.

[0011] By adopting the above technical solution, the sliding groove of the mounting plate fits into the guide plate of the housing, allowing the housing to slide along the sliding groove in a directional manner, thus avoiding deviation or tilting during installation.

[0012] Optionally, a baffle is provided at one end of the housing facing the connecting groove, the baffle covering the connecting groove and in contact with the wires connected to the thermal protector body.

[0013] By adopting the above technical solution, the baffle at the end of the housing can fix the wire connected to the thermal protector at the connecting groove, so that the wire is located between the connecting groove and the connecting groove, thereby reducing the damage to the wiring terminals of the thermal protector caused by the vibration of the wire itself.

[0014] Optionally, the mounting base has a mounting groove at its bottom, and a heat-conducting copper plate corresponding to the thermal protector body is provided in the mounting groove.

[0015] By adopting the above technical solution, the heat-conducting copper plate corresponds to the body of the thermal protector, which can quickly transfer the heat generated by the electrical equipment during operation to the inside of the mounting base. When the electrical equipment is overloaded, the rapidly rising temperature causes the bimetallic strip to bend and push the moving contact away from the stationary contact to cut off the circuit and prevent damage to the electrical equipment. After the power is cut off, the electrical equipment cools down, and the heat-conducting copper plate dissipates heat to the inside of the mounting base, allowing the thermal protector to reset and start working again.

[0016] Optionally, the buffer pad extends along the inner wall of the mounting base toward the heat-conducting copper plate and abuts against the side of the thermal protector body facing the heat-conducting copper plate.

[0017] By adopting the above technical solution, the buffer pad extends to the heat-conducting copper plate and presses against the side of the thermal protector body facing the copper plate, forming a multi-directional wrapping limit in the fixing groove, effectively preventing the thermal protector body from shaking up and down and left and right. At the same time, the extension structure of the buffer pad does not obstruct the heat conduction path of the heat-conducting copper plate.

[0018] Optionally, the bottom of the heat-conducting copper plate is flush with the bottom of the mounting base.

[0019] By adopting the above technical solution, the bottom of the heat-conducting copper plate is flush with the bottom of the mounting base, allowing the heat-conducting copper plate to be directly and tightly attached to the internal structure of the electrical equipment, reducing resistance during the heat transfer process.

[0020] Optionally, the inner wall of the housing is provided with a relief groove corresponding to the abutment plate, the elastic element is connected to the inner wall of the relief groove, and a connecting rod is provided through the housing on the side of the abutment plate away from the thermal protector body. The connecting rod pulls the abutment plate to the position of the relief groove and misaligns it with the top of the mounting base.

[0021] By adopting the above technical solution, the clearance groove inside the housing provides the moving space for the abutment plate. Pulling the connecting rod can cause the abutment plate to compress the elastic element and move into the clearance groove, forming a misalignment with the top of the mounting base. At this time, the abutment plate no longer obstructs the insertion or removal of the thermal protector body. After releasing the connecting rod, the elastic force of the elastic element pushes the abutment plate to reset and press against the protector body, achieving rapid fixation.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The housing is connected to the mounting base through a backing plate and elastic elements to form an elastic clamping structure. Together with the buffer pad on the inner side wall of the fixing groove, the thermal protector body is fixed. The elastic buffer absorbs external vibration or impact, reducing damage to the protector caused by shaking or collision, and ensuring the overall stability of the thermal protector in the electrical equipment. 2. The bent locking plate engages with the end of the housing, and the insert plate at the other end of the housing is inserted into the slot of the mounting base, so that the housing can be quickly fastened to the mounting base and maintain a stable connection, effectively preventing the housing from loosening, and facilitating the maintenance and replacement of the thermal protector. 3. The clearance groove inside the housing provides room for the backing plate to move. Pulling the connecting rod can compress the elastic element of the backing plate and move it into the clearance groove, creating a misalignment with the top of the mounting base. At this time, the backing plate no longer obstructs the insertion or removal of the thermal protector body. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of the installation structure of the power failure reset thermal protector; Figure 2 This is a partial sectional view of the installation structure of the power failure reset thermal protector.

[0024] In the diagram, 1. Mounting base; 11. Fixing groove; 12. Connecting groove; 13. Buffer pad; 14. Slot; 15. Mounting groove; 2. Housing; 21. Insert plate; 22. Guide plate; 23. Baffle; 24. Clearance groove; 3. Support plate; 31. Elastic element; 32. Connecting rod; 4. Mounting plate; 41. Slide groove; 5. Locking plate; 6. Heat-conducting copper plate; 7. Thermal protector body. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0026] Installation structure of the power failure reset thermal protector, refer to Figure 1 and Figure 2 The system includes a mounting base 1 installed in the electrical equipment. A fixing groove 11 for placing the thermal protector body 7 is provided in the mounting base 1. A connecting groove 12 communicating with the fixing groove 11 is provided at one end of the mounting base 1. The inner wall of the connecting groove 12 corresponds to the wires connected to the thermal protector body 7, so that the wires are located in the connecting groove 12. A housing 2 enclosing the mounting base 1 is installed on the mounting base 1. A stop plate 3 abutting against the thermal protector body 7 is installed on the inner wall of the housing 2. An elastic element 31, which is a spring, is connected between the stop plate 3 and the housing 2. A buffer pad 13 made of heat-resistant rubber, abutting against the thermal protector body 7, is pasted on the inner wall of the fixing groove 11, thus tightly fixing the thermal protector body 7. The system absorbs external vibrations or impacts through elastic buffering, reducing damage to the protector caused by shaking or collision, and ensuring the overall stability of the thermal protector installed in the electrical equipment.

[0027] Reference Figure 1 and Figure 2An integrally formed mounting plate 4 extends from both sides of the mounting base 1. The shell 2 is bent on both sides to abut against the mounting plate 4. An integrally formed locking plate 5 is provided at the end of the mounting base 1 away from the connecting groove 12. The locking plate 5 is bent to abut against the end of the shell 2. A slot 14 is opened at the other end of the mounting base 1. An insert plate 21 corresponding to the slot 14 is provided at the end of the shell 2. When the shell 2 is installed, the end of the shell 2 is locked and fixed with the locking plate 5, and the insert plate 21 at the other end is inserted into the slot 14 to fix the shell 2. A sliding groove 41 is opened along the length of the mounting plate 4. Guide plates 22 that fit against the inner sidewall of the sliding groove 41 are provided on both sides of the shell 2. The guide plates 22 are integrally formed with the mounting base 1. An integrally formed baffle 23 is provided at the end of the shell 2 facing the connecting groove 12. The baffle 23 covers the connecting groove 12 and is in contact with the wire connected to the thermal protector to support and limit the wire. The mounting base 1 and the shell 2 are both made of insulating material.

[0028] Reference Figure 1 and Figure 2 A mounting groove 15 is formed at the bottom of the mounting base 1. A heat-conducting copper plate 6 corresponding to the thermal protector body 7 is embedded in the mounting groove 15. A buffer pad 13 extends along the inner wall of the mounting base 1 toward the heat-conducting copper plate 6 and abuts against the side of the thermal protector body 7 toward the heat-conducting copper plate 6. The bottom of the heat-conducting copper plate 6 is flush with the bottom of the mounting base 1, which can quickly transfer the heat generated by the electrical equipment during operation to the interior of the mounting base 1. When the electrical equipment is overloaded, the rapidly rising temperature causes the bimetallic strip to bend and push the moving contact away from the stationary contact to cut off the circuit, preventing damage to the electrical equipment. After the power is cut off, the electrical equipment cools down, and the heat-conducting copper plate 6 dissipates heat to the interior of the mounting base 1, allowing the thermal protector to reset and start working again.

[0029] Reference Figure 2 A relief groove 24 corresponding to the abutment plate 3 is provided on the inner side wall of the housing 2. The elastic element 31 is connected to the inner side wall of the relief groove 24. The side of the abutment plate 3 away from the thermal protector body 7 passes through the housing 2 and is fixed with a connecting rod 32 by bolts. Pulling the connecting rod 32 can cause the abutment plate 3 to compress the elastic element 31 and move into the relief groove 24, forming a misalignment with the top of the mounting base 1, which facilitates the installation and removal of the housing 2.

[0030] The implementation principle of this application embodiment is as follows: The thermal protector body 7 is fixed in the fixing groove 11 of the mounting base 1. The housing 2 is slid along the sliding groove 41 of the mounting plates 4 on both sides of the mounting base 1. The connecting rod 32 is lifted so that the abutment plate 3 compresses the elastic element 31 and moves into the relief groove 24, forming a misalignment with the top of the mounting base 1. The housing 2 is moved further so that the housing 2 abuts against the locking plate 5. The insert plate 21 is inserted into the slot 14 to fix the housing 2. Then the connecting rod 32 is opened so that the elastic element 31 pushes the abutment plate 3 against the thermal protector to fix the thermal protector. The elastic buffer absorbs external vibration or impact, reducing damage to the protector caused by shaking or collision, and ensuring the overall stability of the thermal protector in the electrical equipment.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power-off reset thermal protector mounting structure, characterized in that: The device includes a mounting base (1) installed in an electrical device. The mounting base (1) has a fixing groove (11) for placing a thermal protector body (7). One end of the mounting base (1) has a connecting groove (12) that communicates with the fixing groove (11). The inner side wall of the connecting groove (12) corresponds to the wire connected to the thermal protector body (7). The mounting base (1) is provided with a housing (2) corresponding to the thermal protector body (7). The inner side wall of the housing (2) is provided with a stop plate (3) that abuts against the thermal protector body (7). An elastic element (31) is provided between the stop plate (3) and the housing (2). The inner side wall of the fixing groove (11) is provided with a buffer pad (13) that abuts against the thermal protector body (7).

2. The installation structure of the power failure reset thermal protector according to claim 1, characterized in that: Mounting plates (4) extend from both sides of the mounting base (1). The housing (2) is bent on both sides to abut against the mounting plates (4). A bent locking plate (5) abuts against the end of the housing (2) at one end of the mounting base (1) away from the connecting groove (12). A slot (14) is opened at the other end of the mounting base (1). A plug plate (21) corresponding to the slot (14) is provided at the end of the housing (2).

3. The installation structure of the power failure reset thermal protector according to claim 2, characterized in that: The mounting plate (4) has a groove (41) along its length, and the housing (2) has guide plates (22) on both sides that fit against the inner wall of the groove (41).

4. The installation structure of the power failure reset thermal protector according to claim 3, characterized in that: A baffle (23) is provided at one end of the housing (2) facing the connecting groove (12). The baffle (23) covers the connecting groove (12) and is in contact with the wire connected to the thermal protector body (7).

5. The installation structure of the power failure reset thermal protector according to claim 4, characterized in that: The mounting base (1) has a mounting groove (15) at the bottom, and a heat-conducting copper plate (6) corresponding to the thermal protector body (7) is provided in the mounting groove (15).

6. The installation structure of the power failure reset thermal protector according to claim 5, characterized in that: The buffer pad (13) extends along the inner wall of the mounting base (1) toward the heat-conducting copper plate (6) and abuts against the side of the thermal protector body (7) toward the heat-conducting copper plate (6).

7. The installation structure of the power failure reset thermal protector according to claim 6, characterized in that: The bottom of the heat-conducting copper plate (6) is flush with the bottom of the mounting base (1).

8. The mounting structure of the power failure reset thermal protector according to claim 7, characterized in that: The inner wall of the housing (2) is provided with a relief groove (24) corresponding to the abutment plate (3). The elastic element (31) is connected to the inner wall of the relief groove (24). A connecting rod (32) is provided through the housing (2) on the side of the abutment plate (3) away from the thermal protector body (7). The connecting rod (32) pulls the abutment plate (3) to move to the position of the relief groove (24) and misaligns it with the top of the mounting base (1).

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