Integral temperature control switch with sealed installation structure

Abstract

The utility model discloses an integral temperature control switch with a sealed installation structure, which comprises a temperature control switch element, a contact pin, an injection molding part and a special sealing ring, the injection molding part is formed outside the temperature control switch element and the contact pin through an injection molding machine, and an integral body is formed; the integral temperature control switch is arranged in a U-shaped notch of a casing of a motor stator matched with the integral temperature control switch, the U-shaped notch of the casing is filled with the integral temperature control switch after the integral temperature control switch is assembled, the O-shaped sealing ring and the special sealing ring are compressed, and the portion where the integral temperature control switch is installed is sealed. According to the utility model, temperature control protection of the motor stator is realized, and the integral temperature control switch is convenient to install, reliable in sealing, simple in wiring and high in assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of temperature control switch technology, and specifically relates to an integral temperature control switch with a sealed installation structure. Background Technology

[0002] Previously, the starter temperature control switch was installed by putting a rubber sleeve over the temperature control switch and attaching it to the back cover. Because the sealing sleeve was large, it sometimes did not seal properly, requiring an additional gluing process to ensure a tight seal. Wiring required two wires to be led out from the temperature control switch and then connected to the connector. The sealing reliability was lacking, and the wiring was inconvenient. Further improvements are needed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an integral temperature control switch with a sealed installation structure, which can solve the problems existing in the prior art.

[0004] To solve the above problems, the technical solution provided by this utility model is as follows:

[0005] This utility model embodiment provides an integrated temperature control switch with a sealed installation structure. The integrated temperature control switch (3) is connected to a relay (4) via a plug-in wire (5). The integrated temperature control switch (3) is installed into the U-shaped notch (2-1) of the housing of the matching motor stator (2) and fills the U-shaped notch (2-1) of the housing of the motor stator (2). The motor stator (2) is connected to an electromagnetic switch (1). When the integrated temperature control switch (3) senses that the internal temperature of the motor stator (2) is too high, the contacts of the integrated temperature control switch (3) open, disconnecting the circuit of the relay (4). The electromagnetic switch (1) controlled by the relay (4) is also de-energized. The main contacts of the electromagnetic switch (1) open, cutting off the power supply, thus achieving the principle of stopping the motor stator from working. When the internal temperature of the motor stator drops to a safe working temperature, the contacts of the integrated temperature control switch (3) reset, the circuit is connected, and after the ignition lock is powered on, the motor stator can work normally again.

[0006] The integrated temperature control switch (3) includes a temperature control switch element (3-1), a pin (3-2), an injection molded part (3-3), and a special sealing ring (3-5). The pin (3-2) is welded onto the temperature control switch element (3-1). The injection molded part (3-3) is formed on the outside of the temperature control switch element (3-1) and the pin (3-2) after passing through an injection molding machine. A groove (3-4) is also provided on the injection molded part (3-3), and the special sealing ring (3-5) is fitted into the groove (3-4). The device is provided with three ribs (3-6), which have a sealing effect; the temperature control switch element (3-1) contacts the insert (2-5) on the brush wire (2-4) of the motor stator, and the pin (3-2) is electrically connected to the plug wire (5); the special sealing ring (3-5) and the cylindrical surface of the O-ring (2-6) on the end face of the motor stator (2) housing are fitted together, and the compression of the O-ring (2-6) and the special sealing ring (3-5) is used to seal the part where the integrated temperature control switch (3) is installed.

[0007] In one optional embodiment of this utility model, a rear cover (2-2) is provided on the housing of the motor stator (2). The motor stator (2) and the rear cover (2-2) are connected by a long bolt (2-3). After tightening the long bolt (2-3), the integrated temperature control switch (3) can be installed in place.

[0008] Beneficial effects: This utility model provides an integrated temperature control switch with a sealed mounting structure, including a temperature control switch element, a pin, an injection molded part, and a special sealing ring. The temperature control switch element and the pin are formed into an injection molded part on their outer sides by an injection molding machine, forming a whole. The integrated temperature control switch is installed into the U-shaped notch of the housing of the matching motor stator. After assembly, the U-shaped notch of the housing is filled, and the O-ring and the special sealing ring are compressed to seal the part where the integrated temperature control switch is installed. This utility model achieves temperature control protection for the motor stator, while the integrated temperature control switch is easy to install, has reliable sealing, simple wiring, and high assembly efficiency. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of an integral temperature control switch, motor stator, and relay with a sealed mounting structure, provided for an embodiment of this application.

[0011] Figure 2 This is a schematic diagram of a U-shaped notch in the housing of a motor stator provided in an embodiment of this application.

[0012] Figure 3 This is a schematic diagram of the inserts on the brush wires of a motor stator provided in an embodiment of this application.

[0013] Figure 4 This is a schematic diagram of an integral temperature control switch with a sealed mounting structure inserted into the stator housing of a motor, provided as an embodiment of this application.

[0014] Figure 5 This is a schematic diagram of an integral temperature control switch with a sealed mounting structure, provided as an embodiment of this application.

[0015] Figure 6 This application provides a control circuit diagram for an integral temperature control switch, motor stator, and relay with a sealed mounting structure, as provided in an embodiment of the present application. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The terms "upper," "lower," "front," "rear," "left," and "right," etc., used when describing the installation position or direction of the structure or components in this embodiment are based on the orientation shown in the accompanying drawings. They are merely for convenience of description, used to distinguish the relative positions of various components or directions, and do not represent the orientation of the integrated temperature control switch in this embodiment during use.

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment of the utility model provides an integrated temperature control switch with a sealed mounting structure. The integrated temperature control switch 3 is connected to a relay 4 via a plug-in wire 5. The integrated temperature control switch 3 is inserted into the U-shaped notch 2-1 of the housing of the matching motor stator 2, and fills the U-shaped notch 2-1 of the motor stator 2 housing. The motor stator 2 is connected to an electromagnetic switch 1. Figure 6As shown, when the integrated temperature control switch 3 senses that the internal temperature of the motor stator 2 is too high, the contacts of the integrated temperature control switch 3 open, disconnecting the circuit of the relay 4. The relay 4 controls the electromagnetic switch 1 to also be de-energized, and the main contacts of the electromagnetic switch 1 open, cutting off the power supply, thus achieving the principle of stopping the motor stator from working. When the internal temperature of the motor stator drops to the safe working temperature, the contacts of the integrated temperature control switch 3 reset, the circuit is connected, and after the ignition lock is powered on, the motor stator can work normally again.

[0018] like Figure 5 As shown, the integrated temperature control switch 3 includes a temperature control switch element 3-1, a pin 3-2, an injection molded part 3-3, and a special sealing ring 3-5. The pin 3-2 is welded onto the temperature control switch element 3-1. After injection molding, the outer sides of the temperature control switch element 3-1 and the pin 3-2 are formed into the injection molded part 3-3. The injection molded part 3-3 also has a groove 3-4, and the special sealing ring 3-5 is fitted into the groove 3-4. The special sealing ring 3-5 has three ribs 3-6, which provide a sealing effect. The special sealing ring 3-5 and the cylindrical surface of the O-ring 2-6 on the end face of the motor stator 2 housing are fitted together. The groove of the special sealing ring 3-5 and the cylindrical surface of the O-ring 2-6 on the end face of the motor stator 2 are perfectly matched. After the rear cover 2-1 of the motor stator is installed, the O-ring 2-6 and the special sealing ring 3-5 are compressed to seal the part where the integrated temperature control switch 3 is installed. At the same time, the O-ring 2-6 is compressed by the rear cover to achieve a waterproof seal at the joint between the motor stator 2 and the rear cover 2-1.

[0019] In this embodiment, the special sealing ring 3-5 is installed in the groove of the injection molded part 3-3. Its outer ring has three raised ribs 3-6. The shape of the groove in the injection molded part 3-3 matches the U-shaped notch 2-1 of the motor stator 2's housing. Pushing it down, it locks onto the motor stator 2, forming a three-layer labyrinth seal after assembly. After the integrated temperature control switch 3 fills the U-shaped notch 2 of the motor stator 2's housing, the motor stator 2 forms a complete cylindrical surface, and the O-ring 2-6 is fitted onto this cylindrical surface (see reference). Figure 4 This avoids the situation where there is insufficient material on the end face of the motor stator 2, and the material of the O-ring 2-6 moves to the inside of the motor stator 2 when the back cover 2-2 squeezes the sealing ring, resulting in a poor seal.

[0020] Pin 3-2 is electrically connected to connector wire 5. The temperature control switch element 3-1 contacts the insert 2-5 on the brush wire 2-4 of the motor stator. Before assembly, insert 2-5 is inserted into the rectangular hole of the integrated temperature control switch 3. The pressure plate of the rectangular hole presses against the insert 2-5, ensuring it is flush against the end face of the temperature control switch element 3-1. The heat generated by the motor stator during operation is transferred to insert 2-5 via brush wire 2-4, and then to temperature control switch element 3-1, thus achieving the high-temperature power-off protection function of temperature control switch element 3-1. A rear cover 2-2 is provided on the housing of the motor stator 2. The motor stator 2 and the rear cover 2-2 are connected by a long bolt 2-3. Tightening the long bolt 2-3 allows the integrated temperature control switch 3 to be installed in place. Individual fixing of the integrated temperature control switch 3 is not required. In this embodiment, the temperature control switch element 3-1 and the pin 3-2 are injection molded as a single unit. The injection molded part 3-3 has a groove for fitting a special sealing ring 3-5. The cross-section of the O-ring 2-6 is preferably circular.

[0021] This utility model achieves temperature control protection for the motor stator (starter), while the integrated temperature control switch is easy to install, reliably sealed, simple to wire, highly efficient to assemble, and the installation structure can meet the requirements of level 7 waterproof sealing.

[0022] Although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A hermetically sealed, integrated temperature controlled switch of mounting structure, characterized by, The integral temperature control switch (3) is connected with the relay (4) through the plug-in wire (5), the integral temperature control switch (3) is installed into the U-shaped notch (2-1) of the motor stator (2) and fills the U-shaped notch (2-1) of the motor stator (2), the electromagnetic switch (1) is connected with the motor stator (2), when the integral temperature control switch (3) senses that the temperature inside the motor stator (2) is too high, the integral temperature control switch (3) contact jumps off, the circuit of the relay (4) is disconnected, the electromagnetic switch (1) controlled by the relay (4) is also powered off, the main contact of the electromagnetic switch (1) is disconnected, the power supply is cut off, the principle of stopping the motor stator from working is achieved, when the temperature inside the motor stator decreases to the safe working temperature, the integral temperature control switch (3) contact resets, the circuit is connected, the ignition lock is powered on, the motor stator can work normally again; The integral temperature control switch (3) includes a temperature control switch element (3-1), a plug pin (3-2), an injection molding part (3-3) and a special sealing ring (3-5), the plug pin (3-2) is welded on the temperature control switch element (3-1), the temperature control switch element (3-1) and the plug pin (3-2) are formed with the injection molding part (3-3) outside through the injection molding machine, the injection molding part (3-3) is further provided with a groove (3-4), the groove (3-4) is sleeved with the special sealing ring (3-5), the special sealing ring (3-5) is provided with three ribs (3-6), the three ribs (3-6) have a sealing effect, the temperature control switch element (3-1) is in contact with the plug-in piece (2-5) on the brush wire (2-4) of the motor stator (2), the plug pin (3-2) is electrically connected with the plug-in wire (5), the special sealing ring (3-5) and the cylindrical surface of the O-shaped sealing ring (2-6) on the end surface of the motor stator (2) shell are embedded, the O-shaped sealing ring (2-6) and the special sealing ring (3-5) are compressed to seal the part where the integral temperature control switch (3) is installed.

2. A hermetically sealed unitary thermostat according to claim 1 wherein, The motor stator (2) shell is provided with a rear cover (2-2), the motor stator (2) and the rear cover (2-2) are connected through long bolts (2-3), after the long bolts (2-3) are fastened, the integral temperature control switch (3) can be installed in place.

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