stator terminal block

Abstract

The utility model relates to motor stator technical field, concretely relates to stator terminal board. The stator terminal board, include: main part, the main part sets up at one end of stator core, the conduction subassembly, the conduction subassembly includes potting groove and at least one connecting terminal, the potting groove sets up at the end face of the main part away from the stator core, one end of connecting terminal sets up in the potting groove, and one end of the enameled wire is located in the potting groove and is connected with the connecting terminal, and the potting groove is filled with insulation sealing structure. Through setting up the potting groove, in the convenience of injection glue's while, still can increase the volume of insulation sealing structure, thereby better improvement insulation sealing's effect.

Description

Technical Field

[0001] This utility model relates to the field of motor stator technology, specifically to a stator terminal block. Background Technology

[0002] The stator is the core stationary component of an electric motor. Together with the rotor, it forms an electromagnetic induction system. Its main function is to generate a rotating magnetic field or induced electromotive force, making it a crucial part of the motor's energy conversion from electrical to mechanical energy. The stator consists of a stator core and stator windings, with enameled wires connecting to external circuits. These enameled wires are connected to the external circuits via terminals, which are welded together. The weld joints are typically sealed and insulated. However, in existing technology, improper sealing at these weld joints can lead to moisture, humidity, or oil from the air penetrating the joints and causing short circuits. Utility Model Content

[0003] In view of this, the present invention provides a stator terminal block to solve the problem of improper sealing at the welding point between the enameled wire and the terminal.

[0004] This utility model provides a stator terminal block, comprising:

[0005] The main body is disposed at one end of the stator core;

[0006] A conductive assembly includes a potting groove and at least one connecting terminal. The potting groove is disposed on the end face of the main body away from the stator core. One end of the connecting terminal is disposed in the potting groove, and one end of the enameled wire is located in the potting groove and connected to the connecting terminal. The potting groove is filled with an insulating and sealing structure.

[0007] In one alternative embodiment, the main body has a first mounting position, the connecting terminal is disposed at the first mounting position, the outer periphery of the first mounting position has a surrounding plate, and the surrounding plate and the first mounting position are configured to form the potting groove.

[0008] In one optional embodiment, the end face of the main body away from the stator core has a second mounting position, a temperature controller is disposed in the second mounting position, and a first limiting member is provided in the second mounting position, the first limiting member being adapted to limit the temperature controller.

[0009] In one alternative embodiment, the main body is provided with a connector that is detachably connected to the stator core.

[0010] In one alternative embodiment, the connector is located on the outer periphery of the body, the connector is disposed opposite to the screw hole of the stator core, the connector is a hollow structure, and the screw is adapted to pass through the connector and the screw hole to detachably connect the body and the stator core.

[0011] In one alternative embodiment, the connector has a first sleeve and a second sleeve, the outer diameter of the second sleeve being smaller than that of the first sleeve, the second sleeve being disposed at the end of the first sleeve facing the screw hole, and the second sleeve engaging with the screw hole.

[0012] In one alternative embodiment, the body has a receiving cavity to receive the stator winding, the receiving cavity having a plurality of heat dissipation holes.

[0013] In one optional embodiment, the main body is an annular structure with an open bottom surface, the opening being connected to the receiving cavity, the main body being sleeved on one end of the stator core, and the stator winding being disposed within the receiving cavity through the opening.

[0014] In one optional embodiment, one end of the enameled wire extends along the end face of the body into the potting groove, and the end face of the body has at least one second limiting structure for limiting the enameled wire.

[0015] In one alternative embodiment, the connecting terminal is integrally formed with the body.

[0016] Beneficial effects:

[0017] 1. This utility model provides a stator terminal block with a potting groove on the main body and a connecting terminal inside the potting groove. After the enameled wire is introduced into the potting groove and welded to the connecting terminal, the potting groove is filled with an insulating sealing structure to insulate and seal the welding point between the enameled wire and the connecting terminal. By setting the potting groove, it is convenient to inject glue and the volume of the insulating sealing structure can be increased, thereby improving the insulation sealing effect.

[0018] 2. The stator terminal block in this application has a second mounting position on the main body and a first limiting member in the second mounting position. The temperature controller can be set in the second mounting position under the action of the first limiting member. The first limiting member can prevent the temperature controller from falling out of the second mounting position, effectively ensuring the stability of the temperature controller's detection of the stator winding temperature.

[0019] 3. In the stator terminal block of this application, the outer diameter of the second sleeve is smaller than the outer diameter of the first sleeve, and the outer diameter of the second sleeve is smaller than the inner diameter of the screw hole. The second sleeve can be inserted into the screw hole, and the second sleeve can guide and limit the first sleeve, making it convenient to install the main body on the stator core.

[0020] 4. The stator terminal block in this application has multiple heat dissipation holes on the left and right side walls and top of the receiving cavity. The adjacent heat dissipation holes are spaced apart, and the heat dissipation holes on the left and right side walls of the receiving cavity correspond to each other. The heat dissipation holes can improve the heat dissipation effect of the stator winding, prevent the stator winding from being damaged due to excessive temperature, and at the same time, reduce the material cost of the main body.

[0021] 5. The stator terminal block in this application has a second limiting structure that can fix the enameled wire to the top end face of the main body, thereby preventing the enameled wire from floating or swinging, avoiding faults in the enameled wire, and effectively ensuring the performance of the stator winding and the stable operation of the motor. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a stator terminal block according to an embodiment of the present utility model. Figure 1 ;

[0024] Figure 2 This is a top view of a stator terminal block according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of a stator terminal block according to an embodiment of the present utility model. Figure 2 ;

[0026] Figure 4 This is a bottom view of a stator terminal block according to an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Main body; 2. Conducting component; 201. Encapsulation groove; 2011. First mounting position; 2012. Enclosure plate; 202. Connecting terminal; 3. Insulating and sealing structure; 4. Second mounting position; 5. First limiting component; 6. Connecting component; 601. First sleeve; 602. Second sleeve; 7. Receiving cavity; 8. Heat dissipation hole; 9. Second limiting structure. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0031] According to an embodiment of the present invention, a stator terminal block is provided, comprising: a main body 1 and a conductive component 2.

[0032] Specifically, the main body 1 is disposed at one end of the stator core. The conductive assembly 2 includes a potting groove 201 and at least one connecting terminal 202. The potting groove 201 is disposed on the end face of the main body 1 away from the stator core. One end of the connecting terminal 202 is disposed in the potting groove 201. One end of the enameled wire is located in the potting groove 201 and connected to the connecting terminal 202. The potting groove 201 is filled with an insulating sealing structure 3.

[0033] In this embodiment, the main body 1 is disposed at one end of the stator core (not shown), the potting groove 201 is disposed on the upper end face of the main body 1, one end of the connecting terminal 202 is fixedly disposed in the potting groove 201, and the other end of the connecting terminal 202 extends out of the potting groove 201 to connect with the external circuit lead. The stator core has a stator winding (not shown). The enameled wire (not shown) is led out from the stator winding and extended into the potting groove 201 and welded to the connecting terminal 202. After the enameled wire and the connecting terminal 202 are welded, the insulating sealing structure 3 is filled in the potting groove 201 so that the insulating sealing structure 3 insulates and seals the welding point between the enameled wire and the connecting terminal 202.

[0034] Preferably, the insulating sealing structure 3 is a silicone insulating sealant. In other optional embodiments, the insulating sealing structure 3 may also be a polyurethane sealant or an epoxy sealant, etc.

[0035] Preferably, in this embodiment, the potting groove 201 has four connecting terminals 202. In other optional embodiments, the potting groove 201 may have three or five or other numbers of connecting terminals 202. The number of connecting terminals 202 can be determined according to the requirements and is not specifically limited here.

[0036] It should be noted that by setting the potting groove 201, it is not only convenient to inject adhesive, but also to increase the volume of the insulation sealing structure 3, thereby improving the insulation sealing effect.

[0037] In this embodiment, the connecting terminal 202 is integrally formed with the main body 1. The connecting terminal 202 and the main body 1 are injection molded into an integral structure.

[0038] In one embodiment, the main body 1 has a first mounting position 2011, a connecting terminal 202 is disposed in the first mounting position 2011, and a surrounding plate 2012 is provided on the outer periphery of the first mounting position 2011. The surrounding plate 2012 and the first mounting position 2011 are configured as a potting groove 201.

[0039] In this embodiment, as Figure 2 As shown, the main body 1 has a first mounting position 2011. A connecting terminal 202 is injection molded into the first mounting position 2011. A surrounding plate 2012 surrounds the outer periphery of the first mounting position 2011, housing the first mounting position 2011 and the connecting terminal 202. The surrounding plate 2012, like the main body 1, is injection molded. The surrounding plate 2012 and the first mounting position 2011 together form a potting groove 201. By laying the enameled wire on the surrounding plate 2012, the problem of silicone insulating sealant in the potting groove 201 easily flowing out from the hole in the surrounding plate 2012 can be avoided by making a hole in the surrounding plate 2012 and having the enameled wire pass through the hole into the potting groove 201.

[0040] Preferably, in this embodiment, the first mounting position 2011 has an irregular structure. In other optional embodiments, the edge of the first mounting position 2011 has an irregular structure. In other embodiments, the edge of the first mounting position 2011 may be rectangular or circular, etc.

[0041] In one embodiment, the end face of the main body 1 away from the stator core has a second mounting position 4, a temperature controller is provided in the second mounting position 4, and a first limiting member 5 is provided in the second mounting position 4, which is adapted to limit the temperature controller.

[0042] In this embodiment, as Figure 1 As shown, the upper end face of the main body 1 has a second mounting position 4, which is a rectangular hole. A temperature controller (not shown) can be installed in the second mounting position 4 and fits against the stator winding located below the second mounting position 4 to detect the temperature of the stator winding. Each end of the second mounting position 4 has a first limiting member 5. The two first limiting members 5 limit the temperature controller in the second mounting position 4 to prevent the temperature controller from coming out of the second mounting position 4.

[0043] Specifically, the first limiting member 5 is a U-shaped slot, which fits against the upper surface of the temperature controller to apply downward pressure to the temperature controller. The stator winding below the temperature controller applies an upward supporting force to the temperature controller. Under the action of these two forces, the temperature controller is relatively fixed in the second mounting position 4.

[0044] In other alternative embodiments, the first limiting member 5 may be a spring arm, one end of which is fixed to one side of the second mounting position 4, and the other end of which has a pressure plate. The pressure plate is located above the second mounting position 4 and applies downward pressure to the temperature controller. The spring arm and the pressure plate form a Z-shaped structure.

[0045] In one embodiment, the main body 1 is provided with a connector 6 that is detachably connected to the stator core.

[0046] In one embodiment, the connector 6 is located on the outer periphery of the body 1, and the connector 6 is disposed opposite to the screw hole of the stator core. The connector 6 has a hollow structure, and the screw is adapted to pass through the connector 6 and the screw hole to make the body 1 detachably connected to the stator core.

[0047] In this embodiment, as Figure 1 As shown, the outer periphery of the main body 1 has four connecting parts 6, which are spaced apart. The connecting parts 6 are hollow. When the main body 1 is installed on the main body 1, the connecting parts 6 are first aligned with the screw holes (not shown) on the stator core, and then the screws are passed through the connecting parts 6 and the screw holes in sequence. Finally, the screws are tightened to set the main body 1 on the stator core.

[0048] In other alternative embodiments, the connector 6 may be a claw, and the stator core is provided with a mating part that cooperates with the claw. The main body 1 can be clamped onto the stator core by the cooperation of the claw and the mating part.

[0049] In one embodiment, the connector 6 has a first sleeve 601 and a second sleeve 602. The outer diameter of the second sleeve 602 is smaller than that of the first sleeve 601. The second sleeve 602 is disposed at the end of the first sleeve 601 facing the screw hole, and the second sleeve 602 mates with the screw hole.

[0050] In this embodiment, as Figure 3 and Figure 4 As shown, the second sleeve 602 is fixedly disposed below the first sleeve 601. The inner diameter of the hole of the second sleeve 602 is the same as that of the first sleeve 601. The outer diameter of the second sleeve 602 is smaller than that of the first sleeve 601. The outer diameter of the second sleeve 602 is smaller than that of the screw hole. The second sleeve 602 can be inserted into the screw hole. The second sleeve 602 can guide and limit the first sleeve 601.

[0051] In one embodiment, the main body 1 has a receiving cavity 7 to receive the stator winding, and the receiving cavity 7 has a plurality of heat dissipation holes 8.

[0052] In this embodiment, as Figure 3 and Figure 4As shown, the main body 1 has a receiving cavity 7 to house the stator winding. The left and right side walls and top of the receiving cavity 7 have multiple heat dissipation holes 8. Adjacent heat dissipation holes 8 are spaced apart. The heat dissipation holes 8 on the left and right side walls of the receiving cavity 7 correspond to each other. The heat dissipation holes 8 can improve the heat dissipation effect of the stator winding and prevent the stator winding from being damaged due to excessive temperature.

[0053] In one embodiment, the main body 1 is an annular structure with an open bottom surface, the opening being connected to the receiving cavity 7. The main body 1 is sleeved on one end of the stator core, and the stator winding is disposed in the receiving cavity 7 through the opening.

[0054] In this embodiment, as Figure 3 and Figure 4 As shown, the main body 1 has a ring-shaped structure with an opening on its bottom surface that connects to the receiving cavity 7. When the main body 1 is mounted on the stator core, the stator winding can enter the receiving cavity 7 through the opening on the bottom surface of the main body 1, allowing the receiving cavity 7 to accommodate the stator winding. The left and right side walls of the receiving cavity 7 are the outer and inner sides of the main body 1, and the top of the receiving cavity 7 is the top end face of the main body 1. Heat dissipation holes 8 are located on the outer, inner, and top end faces of the main body 1, allowing heat from the stator winding to dissipate through the heat dissipation holes 8. The heat dissipation holes 8 can be determined based on the dimensions and material of the main body 1, as well as the size of the stator winding. Since the heat dissipation holes 8 are located on the main body 1, it is only necessary to ensure that the number of heat dissipation holes 8 does not affect the stability and strength of the main body 1; therefore, the specific number of heat dissipation holes 8 is not limited here. The heat dissipation holes 8 not only improve the heat dissipation effect of the stator winding but also reduce the material cost of the main body 1.

[0055] In one embodiment, one end of the enameled wire extends along the end face of the body 1 into the potting groove 201. The end face of the body 1 has a plurality of second limiting structures 9, which are used to limit the enameled wire.

[0056] In this embodiment, as Figure 1 and Figure 2 As shown, one end of the enameled wire extends from the heat dissipation hole 8 on the top end face of the main body 1 into the receiving cavity 7. The other end of the enameled wire extends along the top end face of the main body 1 to the surrounding plate 2012, overlaps with the surrounding plate 2012, and then extends into the potting groove 201. A second limiting structure 9 is provided on the extension path of the enameled wire, which can limit and fix the enameled wire to the top end face of the main body 1. The second limiting structure 9 can prevent the enameled wire from floating or swinging, avoiding malfunctions in the enameled wire and effectively ensuring the performance of the stator winding and the stable operation of the motor.

[0057] Preferably, in this embodiment, such as Figure 1 and Figure 2As shown, the top end face of the main body 1 is provided with three second limiting structures 9, and adjacent second limiting structures 9 are spaced apart. In other optional embodiments, the top end face of the main body 1 may be provided with one or two other numbers of second limiting structures 9, and the number of second limiting structures 9 may be determined according to the extension path length of the enameled wire.

[0058] Specifically, such as Figure 1 and Figure 2 As shown, the second limiting structure 9 includes multiple buckles, each buckle fixing an enameled wire. In this embodiment, the second limiting structure 9 includes three buckles. After the three enameled wires extend out of the heat dissipation hole 8, they are respectively limited by the three buckles of the second limiting structure 9 to the top end face of the main body 1.

[0059] Specifically, such as Figure 1 As shown, the three second limiting structures 9 are located between the heat dissipation hole 8 and the conductive component 2. The three second limiting structures 9 are located on the left side of the conductive component 2, and the second mounting position 4 is located on the right side of the conductive component 2. The conductive component 2 is located between the three second limiting structures 9 and the second mounting position 4.

[0060] In other embodiments, the second limiting structure 9 may be a restraint strap that can bind the enameled wire to the top end face of the main body 1.

[0061] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A stator terminal block, characterized in that, include: The main body (1) is disposed at one end of the stator core; The conductive assembly (2) includes a potting groove (201) and at least one connecting terminal (202). The potting groove (201) is disposed on the end face of the main body (1) away from the stator core. One end of the connecting terminal (202) is disposed in the potting groove (201). One end of the enameled wire is located in the potting groove (201) and connected to the connecting terminal (202). The potting groove (201) is filled with an insulating sealing structure (3).

2. The stator terminal block according to claim 1, characterized in that, The main body (1) has a first mounting position (2011), the connecting terminal (202) is disposed in the first mounting position (2011), the first mounting position (2011) has a surrounding plate (2012) on its outer periphery, and the surrounding plate (2012) and the first mounting position (2011) are configured to form the potting groove (201).

3. The stator terminal block according to claim 1 or 2, characterized in that, The main body (1) has a second mounting position (4) on the end face away from the stator core. A temperature controller is provided in the second mounting position (4). A first limiting member (5) is provided in the second mounting position (4). The first limiting member (5) is adapted to limit the temperature controller.

4. The stator terminal block according to claim 1, characterized in that, The main body (1) is provided with a connector (6) that is detachably connected to the stator core.

5. The stator terminal block according to claim 4, characterized in that, The connector (6) is located on the outer periphery of the body (1). The connector (6) is disposed opposite to the screw hole of the stator core. The connector (6) has a hollow structure. The screw is adapted to pass through the connector (6) and the screw hole so that the body (1) and the stator core can be detachably connected.

6. The stator terminal block according to claim 5, characterized in that, The connector (6) has a first sleeve (601) and a second sleeve (602), the outer diameter of the second sleeve (602) is smaller than that of the first sleeve (601), the second sleeve (602) is disposed at the end of the first sleeve (601) facing the screw hole, and the second sleeve (602) cooperates with the screw hole.

7. The stator terminal block according to claim 1, characterized in that, The main body (1) has a receiving cavity (7) to receive the stator winding, and the receiving cavity (7) has a plurality of heat dissipation holes (8).

8. The stator terminal block according to claim 7, characterized in that, The main body (1) is an annular structure with an open bottom surface. The opening is connected to the receiving cavity (7). The main body (1) is sleeved on one end of the stator core. The stator winding is set in the receiving cavity (7) through the opening.

9. The stator terminal block according to claim 1, characterized in that, One end of the enameled wire extends along the end face of the body (1) into the potting groove (201). The end face of the body (1) has at least one second limiting structure (9), which is used to limit the enameled wire.

10. The stator terminal block according to claim 1, characterized in that, The connecting terminal (202) is integrally formed with the main body (1).

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