Split type anti-lost shell

Abstract

The utility model relates to motor technical field, especially relates to split type anti -drop plastic shell, including the plastic shell body of installation on the cover, and there is cavity in the plastic shell body, there is the wire hole and the binding post who communicates with the cavity respectively on the plastic shell body, the plastic shell body includes the base and the end cover of detachable connection, the wire hole sets up on the base, the cavity is located the upper portion of the base and opens to the end cover direction, the end cover sets up on the cavity, the binding post sets up on the end cover, the end cover of installation on the base hides part the wire hole, the wire hole inner diameter of not hiding is less than the wire outer diameter through the wire hole, through above technical scheme, the utility model solves the problem that the present integrated plastic shell influences wire fixed effect, process is complicated, influences motor quality cost and the reliability problem.

Description

Technical Field

[0001] This utility model relates to plastic shells, specifically a split-type anti-detachment plastic shell. Background Technology

[0002] The stator is an important component of an electric motor. During stator assembly, after the winding wires are wound around the stator core, a stator housing containing a plastic shell is installed at one end of the stator core with coils. Then, the wires in the stator core pass through the stator housing and are introduced into the plastic shell, connecting to the transition terminals inside the plastic shell. External connecting wires are connected to the transition terminals through the terminals on the plastic shell. In other words, the stator winding wire ends and external connecting wires are electrically connected inside the plastic shell.

[0003] However, existing plastic housings are all one-piece structures. During assembly, the wire end is directly inserted into the plastic housing from one end and connected to the transition terminal. In this assembly, since the operator cannot see the installation process, it is impossible to ensure a reliable connection between the stator wire end and the transition terminal. After the stator wire end is connected to the transition terminal, in order to prevent the stator wire from detaching from the terminal due to external force, the inner cavity of the plastic housing is injected with glue to fix the wire.

[0004] Therefore, the existing one-piece plastic shell not only affects the fixing effect of the wires, resulting in unstable motor performance after assembly, but also increases the complexity of the injection molding process, which in turn affects the overall quality, cost and reliability of the motor. Utility Model Content

[0005] To address the problems in related technologies, this utility model provides a split-type anti-detachment plastic shell. This device solves the problems of existing one-piece plastic shells affecting wire fixing effect, complex process, and impacting motor quality, cost, and reliability.

[0006] To solve the above problems, the following technical solutions are provided: A split-type anti-detachment plastic shell includes a plastic shell body installed on a cover, the plastic shell body having a cavity, and the plastic shell body having a wire hole and a terminal block communicating with the cavity respectively. The plastic shell body includes a base and an end cap that are detachably connected, the wire hole is disposed on the base, the cavity is located on the upper part of the base and opens towards the end cap, the end cap is disposed on the cavity, and the terminal block is disposed on the end cap. The end cap mounted on the base partially covers the wire passage hole, and the inner diameter of the uncovered wire passage hole is smaller than the outer diameter of the wire passing through the wire passage hole.

[0007] Through the above technical solution, the plastic shell body is a split structure by using a detachable base and end cap. When the wire is inserted into the base and connected to the transition terminal, the connection between the wire and the transition terminal can be clearly seen, thereby ensuring the stability of the connection between the wire and the transition terminal, and thus ensuring the quality and reliability of the motor. Furthermore, after the wires are connected to the transition terminals, the end cap is installed on the base. Since the inner diameter of the exposed wire hole is smaller than the outer diameter of the wire passing through the wire hole, the base will apply downward pressure to the wire passing through the wire hole, thereby pressing the wire through the wire hole tightly. The wire will not detach from the transition terminal due to external force. Therefore, it is no longer necessary to inject glue into the plastic shell to ensure a reliable connection between the wires and the transition terminals, thereby simplifying the processing technology of the plastic shell and reducing the cost of the motor.

[0008] Furthermore, the base is provided with a buckle, and the end cap corresponding to the buckle has a matching retaining element. The end cap is connected to the base through the retaining element and the buckle. The buckle includes a plurality of protrusions disposed on the outer side wall of the base in the width direction. The retaining element includes a plurality of connecting plates disposed on the outer side wall of the end cap in the width direction. The lower part of each connecting plate has a through hole penetrating the thickness direction of the corresponding connecting plate, and each through hole corresponds to the position of one of the protrusions.

[0009] By using the above technical solution, and by setting the protrusion and connecting plate, the connecting plate on the end cap is aligned with the protrusion on the base, and then the end cap is pressed down to fit the through hole on the connecting plate onto the protrusion, thus completing the connection between the end cap and the base. The cooperation between the protrusion and the through hole can effectively prevent the end cap from loosening or shifting during use, ensuring a tight connection between the end cap and the base, thereby improving the reliability and durability of the entire plastic shell body. Furthermore, during disassembly, the connecting plate can be simply removed from the protrusion, thus enabling quick installation and disassembly of the end cap and base. This greatly improves the efficiency of assembly and maintenance, reduces operational difficulty and time costs, and ultimately increases production efficiency.

[0010] Furthermore, the wire-passing hole is disposed on the side end of the base along its length. The wire-passing hole communicates with the wire-passing groove in the cavity and penetrates through the side end of the base. The wire-passing hole extends upward through the top of the base. A retaining plate corresponding to and adapted to the position of the wire-passing hole is disposed at the bottom of one side end of the end cap along its length. The length of the retaining plate is less than the length of the wire-passing hole. After the end cap is assembled with the base, the distance between the inner wall of the wire-passing hole and the retaining plate is less than the outer diameter of the wire passing through the wire-passing hole.

[0011] With the above technical solution, the clamping plate on the end cover cooperates with the wire passage hole on the base. By setting the distance between the inner wall of the wire passage hole and the clamping plate to be less than the outer diameter of the wire, when the wire is connected to the transition terminal in the base through the wire passage hole, the clamping plate will press down against the wire, so that the wire is clamped in the wire passage hole by the clamping plate. This prevents the wire from disengaging from the transition terminal due to displacement or shaking in the wire passage hole, thereby ensuring a stable connection between the wire and the transition terminal, and thus ensuring the stability of the motor performance.

[0012] Furthermore, a limiting notch is provided on the side end of the base corresponding to the wire passage hole. The length direction of the limiting notch is consistent with the height direction of the base, and the limiting notch is connected to the wire passage hole. A limiting strip is provided on the side wall surface in the width direction of the card plate, which corresponds to and matches the position of the limiting notch. The end cap is inserted into the limiting notch on the base through the limiting strip. The distance between the inner wall of the wire passage hole and the card plate is less than the outer diameter of the wire passing through the wire passage hole.

[0013] By using the above technical solution, and by setting the limiting notch and limiting strip, when installing the end cap, align the limiting strip on the end cap with the limiting notch on the base, and gently press the end cap to make it fit tightly against the base. This ensures that the end cap can be accurately aligned with the limiting notch on the base during installation, avoiding positional deviation, while providing stable support to prevent the end cap from loosening during use, thereby improving installation accuracy and enhancing stability.

[0014] Furthermore, the sidewall of each protrusion away from the base is an inclined surface, and the thickness of the protrusion corresponding to the top of the inclined surface is less than the thickness of the protrusion corresponding to the bottom of the inclined surface.

[0015] Through the above technical solution, the inclined surface can play a guiding role during the assembly of the end cap and the base. The inclined surface can guide the protrusion to gradually enter the through hole of the connecting plate, reducing the alignment difficulty during assembly and thus improving assembly efficiency. During the disassembly of the end cap and the base, the inclined surface can guide the protrusion to gradually detach from the through hole of the connecting plate, reducing the friction and lateral pressure between the protrusion and the connecting plate, making disassembly easier and thus speeding up the disassembly rate. Furthermore, during assembly and disassembly, the bevel can distribute the stress evenly between the bump and the connecting plate, rather than concentrating it at the tip of the bump or the edge of the connecting plate, reducing the risk of damage to the bump or the connecting plate and thus improving the durability of the structure.

[0016] Furthermore, two limiting notches are provided, and the two limiting notches are respectively located at both ends of the width direction in the wire hole.

[0017] With the above technical solution, by setting two limiting notches, the two limiting strips can be accurately aligned with the two limiting notches during installation, making it easier to position the card during installation, reducing assembly problems caused by positional deviations, and thus ensuring a tighter and more accurate fit between the card and the wire hole.

[0018] Furthermore, the connecting plate is integrally formed on the end cap.

[0019] Through the above technical solution, the connection plate integrally formed on the end cap makes the connection plate and the end cap form a whole, which greatly enhances the connection stability between the connection plate and the end cap and ensures that the connection plate will not separate or loosen from the end cap due to external force or vibration during use, thereby improving the reliability and durability of the plastic shell body.

[0020] Furthermore, the card plate is integrally formed and disposed on the end cap.

[0021] Through the above technical solution, the integrated clamping plate on the end cap forms a whole with the clamping plate, which greatly enhances the connection stability between the clamping plate and the end cap and ensures that the clamping plate will not separate or loosen from the end cap due to external force or vibration during use, thereby improving the reliability and durability of the plastic shell body.

[0022] Furthermore, the lower part of the wire hole is arc-shaped; the bottom of the card plate is provided with a first notch, so that the bottom of the card plate is arc-shaped, and the center of the arc surface is located below the card plate.

[0023] With the above technical solution, by setting the bottom of the wiring hole and the bottom of the card plate on the arc surface, when the wire passes through the wire hole, it may rub against the hole wall due to vibration or mechanical movement. The arc surface of the hole wall can reduce the local wear between the wire and the hole wall, and between the wire and the bottom surface of the card plate. It can effectively reduce scratches and wear on the surface of the wire, protect the insulation layer of the wire, and thus improve the reliability and service life of the motor.

[0024] Furthermore, the cover is provided with multiple sockets, and the bottom of the base is provided with multiple pins that are adapted to the sockets, with each pin corresponding to a socket position.

[0025] By using the above technical solution, and by designing multiple pins on the housing and multiple pins on the bottom of the plastic housing, it can be ensured that the plastic housing body can be accurately aligned with the predetermined position on the housing during installation, reducing possible lateral and longitudinal errors during installation, thereby ensuring a tighter and more accurate fit between the plastic housing and the housing.

[0026] The above solution has the following advantages: 1. The detachable base and end cap make the plastic shell body a split structure. When the wire is inserted into the base and connected to the transition terminal, the connection between the wire and the transition terminal can be clearly seen, thus ensuring the stability of the connection between the wire and the transition terminal, thereby ensuring the quality and reliability of the motor. In addition, after the wires are connected to the transition terminals, the end cap is installed on the base. Since the length of the exposed wire hole is smaller than the outer diameter of the wire passing through the wire hole, the base will apply downward pressure to the wire passing through the wire hole, thereby pressing the wire through the wire hole tightly. The wire will not be separated from the transition terminal due to external force. Therefore, it is not necessary to inject glue into the plastic shell to ensure a reliable connection between the wires and the transition terminals, thereby simplifying the processing technology of the plastic shell body and reducing the cost of the motor. 2. By aligning the connecting plate on the end cap with the protrusion on the base using the protrusion and then pressing the end cap down, the through hole on the connecting plate is fitted onto the protrusion, thus completing the connection between the end cap and the base. The fit between the protrusion and the through hole effectively prevents the end cap from loosening or shifting during use, ensuring a tight connection between the end cap and the base, thereby improving the reliability and durability of the entire plastic shell. In addition, during disassembly, simply remove the connecting plate from the protrusion, thus achieving quick installation and disassembly of the end cap and the base, which greatly improves the efficiency of assembly and maintenance, reduces the difficulty of operation and time costs, and thus improves production efficiency. 3. By setting the limiting notch and limiting strip, when installing the end cap, align the limiting strip on the end cap with the limiting notch on the base, and gently press the end cap to make it fit tightly against the base. This can ensure that the end cap can be accurately aligned with the limiting notch on the base during installation, avoid positional deviation, and provide stable support to prevent the end cap from loosening during use, thereby improving installation accuracy and enhancing stability. 4. By setting the distance between the wire passage hole and the clamping plate to be less than the outer diameter of the wire, when the wire is connected to the transition terminal in the base through the wire passage hole, the clamping plate will press down on the wire, so that the wire is clamped in the wire passage hole by the clamping plate, preventing the wire from disengaging from the transition terminal due to displacement or shaking in the wire passage hole, thereby ensuring a stable connection between the wire and the transition terminal, and thus ensuring the stability of motor performance. 5. The beveled surface serves as a guide during the assembly of the end cap and base, guiding the protrusion into the through-hole of the connecting plate, reducing alignment difficulties and improving assembly efficiency. During disassembly, the beveled surface guides the protrusion away from the through-hole of the connecting plate, reducing friction and lateral pressure between the protrusion and the connecting plate, making disassembly easier and faster. Furthermore, during assembly and disassembly, the beveled surface distributes stress evenly between the protrusion and the connecting plate, rather than concentrating it at the tip of the protrusion or the edge of the connecting plate, reducing the risk of damage to the protrusion or connecting plate and thus improving structural durability. 6. With the setting of two limiting notches, the two limiting strips can be accurately aligned with the two limiting notches during installation, making it easier to position the card during installation and reducing assembly problems caused by position deviation, thereby ensuring a tighter and more accurate fit between the card and the wire hole; 7. With the arc-shaped bottom of the wiring hole and the bottom of the card plate, when the wire passes through the wire hole, it may rub against the hole wall due to vibration or mechanical movement. The arc-shaped hole wall can reduce local wear between the wire and the hole wall, and between the wire and the bottom surface of the card plate. This can effectively reduce scratches and wear on the wire surface, protect the insulation layer of the wire, and thus improve the reliability and service life of the motor. Attached Figure Description

[0027] To make the content 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, wherein: Figure 1 A schematic diagram of a split-type anti-detachment plastic shell installed on a cover; Figure 2 A schematic diagram of the base in a split-type anti-detachment plastic shell from one perspective; Figure 3 for Figure 2 A magnified view of section number A; Figure 4 A schematic diagram of the split-type anti-detachment plastic shell end cap from one perspective; Figure 5 This is a schematic diagram of the base in the split-type anti-detachment plastic shell from a second perspective. Figure 6 This is a schematic diagram of the split-type anti-detachment plastic shell middle cap from another perspective. Explanation of reference numerals in the attached drawings: 1. Base; 2. End cap; 3. Cavity; 4. Wire hole; 5. Terminal; 6. Protrusion; 7. Connecting plate; 8. Through hole; 9. Limiting notch; 10. Clamping plate; 11. Limiting strip; 12. Pin; 13. Cover; 14. Angled surface; 15. First notch; 16. Transition terminal; 17. Plug. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In a specific embodiment, such as Figure 1-6 As shown, the split-type anti-detachment plastic shell includes a plastic shell body installed on a cover 13. The cover 13 is used to install on the stator frame. The specific structure of the cover 13 is prior art and will not be described in detail here. The plastic shell body has a cavity 3. The plastic shell body has wire holes 4 and terminals 5 that are respectively connected to the cavity 3. The specific structure of the terminals 5 is prior art and will not be described in detail here. In this specific embodiment, there are three terminals 5, which are respectively used for connecting the U, V and W three-phase lines. In this specific embodiment, there are three wire passage holes 4. There is one wire passage hole 4 on one side of the base 1 along its length, and two wire passage holes 4 on the other side. The cavity 3 includes three wire passage grooves. Each wire passage groove is arranged along the length of the base 1, and one end of each wire passage groove along its length is connected to the corresponding wire passage hole 4. Each wire passage groove has a transition terminal 16 and a plug 17. The transition terminal 16 is used to connect the wires led out from the stator core and the external connection wires passing through the terminal block 5. The plug 17 can effectively seal the opening of the plastic shell to prevent liquids, dust or other impurities from entering the interior. The plug 17 can protect the internal structure of the plastic shell from the influence of the external environment and ensure the stability and safety of the electrical connection. The specific structures of the transition terminal 16 and the plug 17 are all existing technologies and will not be described in detail here. The plastic housing body includes a detachably connected base 1 and end cap 2. A wire through hole 4 is provided on the base 1, and a cavity 3 is located at the upper part of the base 1 and opens towards the end cap 2. The end cap 2 is provided on the cavity 3, and a terminal 5 is provided on the end cap 2. The detachably connected base 1 and end cap 2 make the plastic housing body a split structure. When the wire is inserted into the base 1 and connected to the transition terminal 16, the connection between the wire and the transition terminal 16 can be clearly seen, thus ensuring the stability of the connection between the wire and the transition terminal 16, thereby ensuring the quality and reliability of the motor. Since the plastic housing body is a split structure, the base 1 and end cap 2 can be fixed by maintaining the connection of the components and the buckle, thus ensuring the stability of the plastic housing body, thereby ensuring the quality and reliability of the motor. The end cap 2, mounted on the base 1, partially covers the wire hole 4. The inner diameter of the uncovered wire hole 4 is smaller than the outer diameter of the wire passing through the wire hole 4. After the wire is connected to the transition terminal 16, the end cap 2 is mounted on the base 1. Since the exposed length of the wire hole 4 is smaller than the outer diameter of the wire passing through the wire hole 4, the base 2 will apply downward pressure to the wire passing through the wire hole 4, thereby pressing the wire through the wire hole 4 tightly. The wire will not detach from the transition terminal 16 due to external force. Therefore, it is not necessary to inject glue into the plastic shell to ensure a reliable connection between the wire and the transition terminal 16, thereby simplifying the processing technology of the plastic shell and reducing the cost of the motor.

[0030] like Figure 2 As shown, a buckle is provided on the base 1, and a corresponding retaining element is provided on the end cap 2. The end cap 2 is connected to the base 1 through the retaining element and the buckle. The buckle includes a plurality of protrusions 6 provided on the outer wall surface in the width direction of the base 1. The retaining element includes a plurality of connecting plates 7 provided on the outer wall surface in the width direction of the end cap 2. Each connecting plate 7 has a through hole 8 at the bottom that penetrates through the thickness direction of the corresponding connecting plate 7. Each through hole 8 corresponds to the position of a protrusion 6. The through hole 8 and the protrusion 6 are adapted to each other, or the through hole 8 is larger than the protrusion 6. In this specific embodiment, the through hole 8 is rectangular. Align the connecting plate 7 on the end cover 2 with the protrusion 6 on the base 1, and then press the end cover 2 down to fit the through hole 8 on the connecting plate 7 onto the protrusion 6. This completes the connection between the end cover 2 and the base 1. The cooperation between the protrusion 6 and the through hole 8 can effectively prevent the end cover 2 from loosening or shifting during use, ensuring a tight connection between the end cover 2 and the base 1, thereby improving the reliability and durability of the entire plastic shell. In addition, during disassembly, simply remove the connecting plate 7 from the protrusion 6 to achieve quick installation and disassembly of the end cover 2 and the base 1, which greatly improves the efficiency of assembly and maintenance, reduces the difficulty of operation and time cost, and thus improves production efficiency.

[0031] like Figure 2-3 As shown, the wire hole 4 is located on the side end of the base 1 along its length. The wire hole 4 communicates with the wire groove in the cavity and passes through the side end of the base 1. The wire hole 4 extends upward through the top of the base 1. The bottom of one side end of the end cover 2 along its length is provided with a retaining plate 10 that corresponds to and matches the position of the wire hole 4. The length of the retaining plate 10 is less than the length of the wire hole 4. After the end cover 2 is assembled with the base 1, the distance between the inner wall of the wire hole 4 and the retaining plate 10 is less than the outer diameter of the wire passing through the wire hole 4. The clamping plate on the end cover 2 cooperates with the wire passage hole on the base 1. By setting the distance between the inner wall of the wire passage hole 4 and the clamping plate 10 to be less than the outer diameter of the wire, when the wire passes through the wire passage hole 4 and connects to the transition terminal 16 in the base, the clamping plate 10 will press down against the wire, so that the wire is clamped by the clamping plate 10 in the wire passage hole 4, preventing the wire from disengaging from the transition terminal 16 due to displacement or shaking in the wire passage hole 4, thereby ensuring a stable connection between the wire and the transition terminal 16, and thus ensuring the stability of the motor performance.

[0032] like Figure 2-3 As shown, a limiting notch 9 is provided on the side end of the base 1 corresponding to the wire hole 4. The length direction of the limiting notch 9 is consistent with the height direction of the base 1, and the limiting notch 9 is connected to the wire hole 4. A limiting strip 11 corresponding to and adapted to the position of the limiting notch 9 is provided on the side wall surface of the card plate 10 in the width direction. The end cap is inserted into the limiting notch 9 on the base 1 through the limiting strip 11. The distance between the inner wall of the wire hole 4 and the card plate 10 is less than the outer diameter of the wire passing through the wire hole 4. When installing end cap 2, align the limiting strip 11 on end cap 2 with the limiting notch 9 on base 1, and gently press end cap 1 to make it fit tightly against base 1. This ensures that end cap 2 can be accurately aligned with the limiting notch 9 on base 1 during installation, avoiding positional deviation, while providing stable support to prevent end cap 2 from loosening during use, thereby improving installation accuracy and enhancing stability.

[0033] like Figure 5 As shown, the sidewall of each protrusion 6 away from the base 1 is a slope 14, and the thickness of the protrusion 6 corresponding to the top of the slope 14 is less than the thickness of the protrusion 6 corresponding to the bottom of the slope 14. Since the thickness of the protrusion 6 gradually increases from top to bottom, when the connecting plate 7 is pressed down, the narrower upper part of the protrusion 6 can smoothly enter the through hole 8, while the wider lower part forms a self-locking mechanism in the through hole 8. This design allows the connecting plate 7 to be firmly fixed on the base 1 after installation and will not easily loosen. It can effectively prevent the connection from loosening due to external force or vibration, and improve the reliability and durability of the plastic shell body.

[0034] like Figure 3 As shown, there are two limiting notches 9, which are located at both ends of the width direction in the wire hole 4. When the clamping plate 10 is installed, the two limiting strips 11 can be precisely aligned with the two limiting notches 9, making it easier to position the clamping plate 10 during installation and reducing assembly problems caused by position deviation, thereby ensuring a tighter and more accurate fit between the clamping plate 10 and the wire hole 4.

[0035] like Figure 4As shown, the connecting plate 7 is integrally formed on the end cap 2; the integrally formed connecting plate 7 on the end cap 2 makes the connecting plate 7 and the end cap 2 form a whole, which greatly enhances the connection stability between the connecting plate 7 and the end cap 2, ensuring that the connecting plate 7 will not separate or loosen from the end cap 2 due to external force or vibration during use, thereby improving the reliability and durability of the plastic shell body.

[0036] like Figure 4 As shown, the card plate 10 is integrally formed on the end cap 2; the integrally formed card plate 10 on the end cap 2 makes the card plate 10 and the end cap 2 form a whole, which greatly enhances the connection stability between the card plate 10 and the end cap 2, ensuring that the card plate 10 will not separate or loosen from the end cap 2 due to external force or vibration during use, thereby improving the reliability and durability of the plastic shell body.

[0037] like Figure 6 As shown, the lower part of the wire-passing hole 4 is arc-shaped; the bottom of the clamping plate 10 is provided with a first notch 15, so that the bottom of the clamping plate 10 is arc-shaped, and the center of the arc surface is located below the clamping plate 10; when the wire passes through the wire-passing hole 4, it may rub against the hole wall due to vibration or mechanical movement. The arc-shaped hole wall can reduce the local wear between the wire and the hole wall of the wire-passing hole 4, and between the wire and the bottom surface of the clamping plate 10, which can effectively reduce the scratches and wear on the surface of the wire, protect the insulation layer of the wire, and thus improve the reliability and service life of the motor.

[0038] like Figure 2 As shown, the cover 13 is provided with multiple sockets, and the bottom of the base 1 is provided with multiple pins 12 that are adapted to the sockets. Each pin 12 corresponds to a socket position. By designing multiple sockets on the cover 13 and multiple pins 12 on the bottom of the plastic shell, it can be ensured that the plastic shell body can be accurately aligned with the predetermined position on the cover 13 during installation, reducing possible lateral and longitudinal errors during installation, thereby ensuring a tighter and more accurate fit between the plastic shell and the cover 13.

[0039] Assembly process: Install the cover on the stator frame, and install each pin at the bottom of the base into the socket of the cover in sequence. With the base in an open state, pass the three wires led out from the frame through the three wire holes and insert them into the base. Each wire is connected to the corresponding transition terminal. At this time, the operator can intuitively and clearly see the connection between the wire and the transition terminal, thereby ensuring a reliable connection between the wire and the transition terminal. Install the cover onto the stator frame, and install each pin at the bottom of the base into the socket of the cover in sequence. With the base in an open state, pass the three wires led out from the frame through the three wire holes and insert them into the base. Each wire is connected to the corresponding transition terminal. At this time, the operator can intuitively and clearly see the connection between the wire and the transition terminal, thereby ensuring a reliable connection between the wire and the transition terminal. After installation, the operator holds the end cap close to the base. The position of the end cap is then adjusted so that the through holes on each connecting plate align with the corresponding protrusions, each retaining plate aligns with the corresponding wire passage hole, and each limiting strip aligns with the corresponding limiting notch. The end cap is then pressed down so that each protrusion is positioned within the through hole of its corresponding connecting plate, and each retaining plate is positioned within the wire passage hole. At this point, the retaining plates firmly hold the wires within the wire passage hole, ensuring that the wires do not loosen or shift. Each limiting strip is inserted into its corresponding limiting notch, completing the connection between the end cap and the base. The retaining plates press the stator wires firmly, preventing them from becoming loose from the terminals due to external pulling and eliminating the need for the glue injection process into the inner cavity of the plastic shell.

[0040] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A split-type anti-detachment plastic shell, comprising a plastic shell body installed on a cover (13), the plastic shell body having a cavity (3), and the plastic shell body having a wire hole (4) and a terminal block (5) respectively communicating with the cavity (3), characterized in that, The plastic shell body includes a base (1) and an end cap (2) that are detachably connected. The wire hole (4) is provided on the base (1). The cavity (3) is located on the upper part of the base (1) and opens towards the end cap (2). The end cap (2) is provided on the cavity (3). The terminal block (5) is provided on the end cap (2). The end cap (2) mounted on the base (1) covers part of the wire hole (4), and the inner diameter of the uncovered wire hole (4) is smaller than the outer diameter of the wire passing through the wire hole (4).

2. The split-type anti-detachment plastic shell as described in claim 1, characterized in that, The base (1) is provided with a buckle, and the end cap (2) corresponding to the buckle has a matching retaining element. The end cap (2) is connected to the base (1) through the retaining element and the buckle. The buckle includes a plurality of protrusions (6) disposed on the outer side wall of the base (1) in the width direction, and the retaining element includes a plurality of connecting plates (7) disposed on the outer side wall of the end cap (2) in the width direction. Each connecting plate (7) has a through hole (8) at the bottom that penetrates the thickness direction of the corresponding connecting plate (7), and each through hole (8) corresponds to a position of one of the protrusions (6).

3. The split-type anti-detachment plastic shell as described in claim 1, characterized in that, The wire hole (4) is located on the side end of the base (1) along its length. The wire hole (4) communicates with the wire groove in the cavity (3) and passes through the side end of the base (1). The wire hole (4) extends upward through the top of the base (1). The bottom of one side end of the end cap (2) along its length is provided with a clamping plate (10) that corresponds to and matches the position of the wire hole (4). The length of the clamping plate (10) is less than the length of the wire hole (4). After the end cap (2) is assembled with the base (1), the distance between the inner wall of the wire hole (4) and the clamping plate (10) is less than the outer diameter of the wire passing through the wire hole.

4. The split-type anti-detachment plastic shell as described in claim 3, characterized in that, A limiting notch (9) is provided on the side end of the base (1) corresponding to the wire hole (4). The length direction of the limiting notch (9) is consistent with the height direction of the base (1). The limiting notch (9) and the wire hole (4) are connected. A limiting strip (11) corresponding to and adapted to the position of the limiting notch (9) is provided on the side wall of the card plate (10) in the width direction. The end cap (2) is inserted into the limiting notch (9) on the base (1) through the limiting strip (11). The distance between the inner wall of the wire hole (4) and the card plate (10) is less than the outer diameter of the wire passing through the wire hole.

5. The split-type anti-detachment plastic shell as described in claim 2, characterized in that, The sidewall of each protrusion (6) away from the base (1) is an inclined surface (14), and the thickness of the protrusion (6) corresponding to the top of the inclined surface (14) is less than the thickness of the protrusion (6) corresponding to the bottom of the inclined surface (14).

6. The split-type anti-detachment plastic shell as described in claim 4, characterized in that, There are two limiting notches (9), and the two limiting notches (9) are located at the two ends of the width direction in the wire hole (4).

7. The split-type anti-detachment plastic shell as described in claim 2, characterized in that, The connecting plate (7) is integrally formed and disposed on the end cap (2).

8. The split-type anti-detachment plastic shell as described in claim 3, characterized in that, The card plate (10) is integrally formed and disposed on the end cap (2).

9. The split-type anti-detachment plastic shell as described in claim 3, characterized in that, The lower part of the wire hole (4) is arranged in an arc shape; the bottom of the card plate (10) is provided with a first notch (15), so that the bottom of the card plate (10) is in the shape of an arc surface, and the center of the arc surface is located below the card plate (10).

10. The split-type anti-detachment plastic shell as described in claim 1, characterized in that, The cover (13) is provided with multiple sockets, and the bottom of the base (1) is provided with multiple pins (12) that are adapted to the sockets, with each pin (12) corresponding to a socket position.

Images