Fixed line device, electric machine and compressor

Abstract

The application relates to the fixed wire technical field, and discloses a fixed wire device, a motor and a compressor. The fixed wire device comprises a main body, the main body comprises a first fixed wire cavity, a second fixed wire cavity, a first limiting wall and a sealing element, the main body is connected with a first opening of the first fixed wire cavity, the main body is connected with a second opening of the second fixed wire cavity, the first limiting wall is arranged between the first fixed wire cavity and the second fixed wire cavity, the first limiting wall comprises a wire passing hole, the first fixed wire cavity and the second fixed wire cavity are connected through the wire passing hole, the first limiting wall abuts against the outer periphery of a wire rod through the wire passing hole, and the wire rod is fixed to the main body through the first opening, the second opening and the wire passing hole. Compared with the prior art, the wire rod can be sealed and fixed through the first fixed wire cavity, the second fixed wire cavity and the sealing element, the sealing property of the fixed wire device to the wire rod is improved, the wire passing hole can wrap the outer periphery of the wire rod through the first limiting wall, and the overall sealing property of the fixed wire device is further improved on the basis of avoiding displacement of the wire rod.

Description

Technical Field

[0001] This application relates to the field of wire fixing technology, and in particular to a wire fixing device, motor and compressor. Background Technology

[0002] Wire securing devices are used in various devices as important components in the assembly of multiple parts. For example, in motors, the wires leading from the motor need to be connected to external devices, requiring a wire securing device to fix and connect the wires. In existing technologies, wire securing devices can only secure wires by setting multiple wire through holes. Because these holes are small, rapid assembly is not possible. If the through holes are large, the wires are prone to shifting relative to the securing device, resulting in poor sealing. External impurities can easily enter the securing device through the gaps between the through holes and the wires; for example, conductive liquids can easily enter the securing device along the wires, leading to low reliability of electrical connections between devices. Summary of the Invention

[0003] To address the technical problems of inconvenient assembly and poor sealing of wire fixing devices, the main objective of this application is to provide a wire fixing device, motor, and compressor that can improve assembly efficiency and sealing performance.

[0004] To achieve the above-mentioned objectives, this application adopts the following technical solution:

[0005] According to one aspect of this application, a wire securing device is provided, comprising a main body, wherein a first wire securing cavity and a second wire securing cavity are formed within the main body and separated by a first limiting wall; the main body has a first opening communicating with the first wire securing cavity and a second opening communicating with the second wire securing cavity; the first limiting wall has a wire passing hole communicating with the first wire securing cavity and the second wire securing cavity; a wire is fixed to the main body through the wire passing hole; and sealing members are provided in the first wire securing cavity and the second wire securing cavity, respectively facing the first opening and the second opening, so as to form a sealed cavity between the main body and the wire.

[0006] According to one embodiment of this application, the main body further includes a plurality of second limiting walls, which are spaced apart in the second wire-fixing cavity and divide the second wire-fixing cavity into a plurality of wire-passing grooves. The first limiting wall includes a plurality of wire-passing holes, and the wire-passing holes correspond one-to-one with the wire-passing grooves.

[0007] According to one embodiment of this application, it further includes a sealing element, the main body further includes a wall, the wall surrounds the first wire-fixing cavity and the second wire-fixing cavity, the second wire-fixing cavity includes a sealing cavity facing the second opening, one of the sealing elements is disposed in the sealing cavity, the first opening and the second opening are respectively opened at both ends of the wall, and the sealing element abuts against the outer periphery of the wire and the wall.

[0008] According to one embodiment of this application, the wall body includes a first connecting wall and a second connecting wall. The first connecting wall forms a first wire-fixing cavity, and the second connecting wall forms a second wire-fixing cavity and the sealing cavity. A first limiting wall is disposed between the first connecting wall and the second connecting wall. The first connecting wall abuts against the outer periphery of the wire, and the sealing member abuts against the outer periphery of the wire and the second connecting wall.

[0009] According to one embodiment of this application, the second connecting wall includes:

[0010] The first wire fixing part faces the part to be installed;

[0011] The second wire fixing part is away from the part to be installed, and the first wire fixing part and the second wire fixing part form the second wire fixing cavity and the sealing cavity;

[0012] A connector is disposed between the first wire fixing part and the second wire fixing part, and the first wire fixing part and the second wire fixing part are detachably connected by the connector.

[0013] According to one embodiment of this application, the connecting member includes a sliding track and a sliding rail that cooperate with each other, wherein the sliding rail is disposed on the second fixed part and the sliding track is disposed on the first fixed part; or, the sliding rail is disposed on the first fixed part and the sliding track is disposed on the first fixed part and the second fixed part, so that the first fixed part and the second fixed part are slidably connected.

[0014] According to one embodiment of this application, the connector further includes a locking member disposed between the slide rail and the slide path, wherein the first fixing portion and the second fixing portion are limited to relative sliding displacement by the locking member.

[0015] According to one embodiment of this application, the first wire-fixing cavity has an annular racetrack-shaped structure in cross-section perpendicular to the wire, and the first connecting wall is wrapped around the outer periphery of the wire.

[0016] According to one embodiment of this application, the main body further includes a mounting portion, which is detachably connected to the accessory to be installed.

[0017] According to one embodiment of this application, the mounting part includes a mounting groove and a protrusion. The protrusion protrudes from the mounting groove toward the side of the accessory to be mounted. Both the mounting groove and the protrusion extend along a first direction. The mounting groove includes a third opening. The protrusion slides with the accessory to be mounted along the first direction through the third opening. The mounting groove abuts against the outer periphery of the accessory to be mounted.

[0018] According to one embodiment of this application, the mounting portion further includes a stop wall extending along a second direction. The stop wall is disposed in the mounting groove facing the third opening. The stop wall protrudes from the mounting groove toward the side of the accessory to be mounted. The first direction is set at an angle to the second direction. The stop wall is disposed at one end away from the third opening, and the stop wall forms a snap-fit ​​surface with the outer periphery of the accessory to be mounted.

[0019] According to one embodiment of this application, the side of the mounting portion facing the accessory to be mounted is an arc-shaped abutment wall, the abutment wall surrounds the mounting groove, and the protrusion is disposed on the center line of the abutment wall.

[0020] According to another aspect of this application, an electric motor is provided, including the aforementioned wire fixing device.

[0021] According to another aspect of this application, a compressor is provided, including the aforementioned motor.

[0022] As can be seen from the above technical solution, the advantages and positive effects of the wire fixing device and motor of this application are as follows:

[0023] On the one hand, the first and second wire-fixing cavities provide initial sealing and fixing of the wire, making it easier for workers to fix the wire within these cavities and improving assembly efficiency. On the other hand, the first limiting wall allows the wire-passing hole to wrap around the outer periphery of the wire, and the first limiting wall abuts against the outer periphery of the wire, effectively preventing displacement of the wire relative to the first and second wire-fixing cavities. Furthermore, the sealing elements facing the first and second openings prevent liquid from flowing between the first and second wire-fixing cavities, further improving the overall sealing performance of the wire-fixing device. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional structural schematic diagram of a wire fixing device provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the first side structure of a wire fixing device provided in an embodiment of this application;

[0028] Figure 3 This is a cross-sectional view of the wire fixing device at point AA, provided in an embodiment of this application.

[0029] Figure 4 This is another structural schematic diagram of a first side of a wire fixing device provided in an embodiment of this application;

[0030] Figure 5 This is a cross-sectional view of the BB section of a wire fixing device provided in an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the second side structure of a wire fixing device provided in an embodiment of this application;

[0032] Figure 7 This is another three-dimensional structural schematic diagram of a wire fixing device provided in an embodiment of this application;

[0033] Figure 8 This is a schematic diagram of the third side structure of a wire fixing device provided in an embodiment of this application.

[0034] in:

[0035] 10. Main body; 11. First wire-fixing cavity; 12. Second wire-fixing cavity; 121. Wire-passing groove; 13. First opening; 14. Second opening; 15. First limiting wall; 151. Wire-passing hole; 16. Second limiting wall; 17. Wall; 171. First connecting wall; 172. Second connecting wall; 721. First wire-fixing part; 722. Second wire-fixing part; 723. Connector; 731. Slide rail; 732. Slide rail; 18. Sealing cavity;

[0036] 19. Mounting section; 191. Mounting groove; 911. Third opening; 192. Protruding rib; 193. Stop wall; 931. Snap-fit ​​surface; 194. Abutment wall;

[0037] 20. Sealing components;

[0038] 30. First direction; 40. Second direction. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Wire securing devices are used in various devices as important components in the assembly of multiple parts. For example, in motors, the wires leading from the motor need to be connected to external devices, requiring a wire securing device to fix and connect the wires. In existing technologies, wire securing devices can only secure wires by setting multiple wire through holes. Because these holes are small, rapid assembly is not possible. If the through holes are large, the wires are prone to shifting relative to the securing device, resulting in poor sealing. External impurities can easily enter the securing device through the gaps between the through holes and the wires; for example, conductive liquids can easily enter the securing device along the wires, leading to low reliability of electrical connections between devices.

[0041] To address the technical problems of inconvenient assembly and poor sealing of wire fixing devices, one aspect of this application provides a wire fixing device, including a main body 10. The main body 10 has a first wire fixing cavity 11 and a second wire fixing cavity 12 separated by a first limiting wall 15. The main body 10 has a first opening 13 connecting the first wire fixing cavity 11 and a second opening 14 connecting the second wire fixing cavity 12. The first limiting wall 15 has a wire passage hole 151 connecting the first wire fixing cavity 11 and the second wire fixing cavity 12. The wire is fixed to the main body through the wire passage hole. Sealing elements 20 are provided in the first wire fixing cavity 11 and the second wire fixing cavity 12, respectively facing the first opening 13 and the second opening 14, so that a sealed cavity is formed between the main body 10 and the wire.

[0042] refer to Figures 1-5 As shown, the wire can enter the first wire-fixing cavity 11 through the first opening 13. The wire is initially positioned by the first opening 13 and the first fixing cavity. Then, the wire can be quickly assembled into the wire-passing hole 151, improving assembly efficiency. After the wire passes through the wire-passing hole, it is guided into the second wire-fixing cavity 12. The seal in the second wire-fixing cavity 12 can then intercept liquid, preventing liquid from flowing into the second wire-fixing cavity 12. After the first limiting wall 15 abuts against the wire, it effectively prevents the relative displacement of the wire between the first wire-fixing cavity 11 and the second wire-fixing cavity 12. On the other hand, the seal in the first wire-fixing cavity 11 initially intercepts external impurities, and then the first limiting wall 15 performs secondary interception and sealing. The seal effectively prevents external impurities from entering the second wire-fixing cavity 12 from the gap between the first wire-fixing cavity 11, the wire-passing hole 151 and the wire, improving the sealing performance of the entire wire-fixing device and thus improving the reliability of the electrical connection between the devices.

[0043] Alternatively, the second wire-fixing cavity 12 can initially intercept external impurities, and then the first limiting wall 15 can perform secondary interception and sealing, effectively preventing external impurities from entering the first wire-fixing cavity 11 from the gap between the second wire-fixing cavity 12 and the wire through hole 151 and the wire, thereby improving the sealing performance of the entire wire-fixing device and thus improving the reliability of electrical connections between devices.

[0044] As an example, the diameters of the first opening 13 and the second opening 14 are larger than the opening diameter of the wire through hole 151, so that the wire can quickly enter the first wire fixing cavity 11 and the second wire fixing cavity 12, thereby improving the installation efficiency of the wire.

[0045] Preferably, the width of the first wire-fixing cavity 11 can be set to be slightly larger than the diameter of the wire, and the length of the first wire-fixing cavity 11 can be set to be slightly larger than a multiple of the diameter of the wire. In this way, the first wire-fixing cavity 11 can be used to limit the assembly and fixation of a single layer of wire, thereby further improving the flexibility of workers when using it, eliminating the need to manually control the number of assembly layers of the wire, and improving the assembly efficiency of workers.

[0046] According to one embodiment of this application, the main body 10 further includes a plurality of second limiting walls 16, which are spaced apart in the second wire fixing cavity 12 and divide the second wire fixing cavity 12 into a plurality of wire passing grooves 121. The first limiting wall 15 includes a plurality of wire passing holes 151, which correspond one-to-one with the wire passing grooves 121.

[0047] As an example, see reference Figure 3 and Figure 5 As shown, the second limiting wall 16 extends along the extension direction of the wire, and the wire is fixed in the wire passage groove 121 by the second limiting wall 16, which further improves the stability of the wire fixing and avoids the relative displacement of the wire relative to the wire fixing device in the radial direction of the wire. On the one hand, it improves the stability of fixing, and on the other hand, the second limiting wall 16 guides the wire to avoid local bending of the wire at the exit and reduces the influence between adjacent wires, so that the wire can pass through the second wire fixing cavity 12 quickly and improves the assembly efficiency.

[0048] According to one embodiment of this application, the main body 10 further includes a wall 17, the wall 17 surrounding the first wire-fixing cavity 11 and the second wire-fixing cavity 12. The second wire-fixing cavity includes a sealing cavity 18 facing the second opening 14, one of the sealing elements 20 being disposed within the sealing cavity 18. The first opening 13 and the second opening 14 are respectively opened at both ends of the wall 17, and the sealing element 20 abuts against the outer periphery of the wire between the wall 17 and the wall.

[0049] refer to Figure 3 , Figure 5 and Figure 7As shown, as an example, the sealing element 20 can be configured as a flexible rubber pad or an O-ring, etc., and is disposed in the sealing cavity 18. The first wire-fixing cavity 11 is disposed near the inlet end of the main body 10, and the sealing cavity 18 is disposed near the outlet end of the main body 10. The first opening 13 faces the first wire-fixing cavity 11, and the second opening 14 faces the sealing cavity 18. After the second fixing cavity is disposed between the first wire-fixing cavity 11 and the sealing cavity 18, liquid is further prevented from flowing through the sealing cavity 18 into the external device and the second wire-fixing cavity 12, thereby further improving the sealing performance of the wire-fixing device.

[0050] As an example, the volume of the sealing cavity 18 can accommodate the wire and the seal 20, so that the seal 20 wraps around the outer periphery of the wire, thereby preventing liquid or debris from flowing into the wire fixing device along the extension direction of the wire, and further improving the sealing performance and reliability of the wire fixing device.

[0051] According to one embodiment of this application, the wall 17 includes a first connecting wall 171 and a second connecting wall 172. The first connecting wall 171 forms a first wire-fixing cavity 11, and the second connecting wall 172 forms a second wire-fixing cavity 12 and a sealing cavity 18. A first limiting wall 15 is disposed between the first connecting wall 171 and the second connecting wall 172. The first connecting wall 171 abuts against the outer periphery of the wire, and the sealing member 20 abuts against the outer periphery of the wire and between the second connecting wall 172.

[0052] As an example, see reference Figures 1-8 As shown, the first connecting wall 171 abuts against the outer periphery of the wire, so that the first connecting wall 171 and the wire are interference-fitted through the first wire fixing cavity 11, thereby achieving the purpose of sealing. The second fixing cavity formed by the second connecting wall 172 is connected to the sealing cavity 18, so that the first connecting wall 171 and the second connecting wall 172 are integrally formed. The second limiting wall 16 is disposed on the second connecting wall 172. The second limiting wall 16 and the first limiting wall 15 are integrally formed on the wall body 17, which improves the mechanical stability and sealing performance of the overall mechanism.

[0053] As an example, the extension length of the first connecting wall 171 along the extension direction of the wire can be controlled to adjust the fixing effect and sealing effect of the first fixing cavity between the first connecting wall 171 and the wire on the wire.

[0054] According to one embodiment of this application, the second connecting wall 172 includes:

[0055] First wire fixing part 721, the first wire fixing part 721 faces the part to be installed;

[0056] The second wire fixing part 722 is away from the accessory to be installed. The first wire fixing part 721 and the second wire fixing part 722 form a second wire fixing cavity 12 and a sealing cavity 18.

[0057] A connector 723 is disposed between the first wire fixing part 721 and the second wire fixing part 722, and the first wire fixing part 721 and the second wire fixing part 722 are detachably connected by the connector 723.

[0058] refer to Figure 7 As shown, the first wire-fixing part 721 can be integrally formed and connected with the first connecting wall 171. The second fixing part and the first wire-fixing part 721 are detachably connected through the connector 723, which further facilitates the user to adjust the fixing position and sealing effect of the second wire-fixing cavity 12 and the sealing cavity 18, and further improves the user's assembly efficiency. In actual use, the wire can be passed through the first opening 13, the first wire-fixing cavity 11, the wire groove 121, the second wire-fixing cavity 12 and the sealing cavity 18 in sequence, and then led out from the second opening 14. Then, the second wire-fixing part 722 is installed on the first fixing part, and the relative displacement between the first wire-fixing part 721 and the second wire-fixing part 722 is limited by the connector 723, so that the second wire-fixing cavity 12 and the sealing cavity 18 wrap the wire, which further facilitates the worker to adjust the assembly position of the wire, and also facilitates the maintenance of the wire in the later stage.

[0059] As an example, the connector 723 can be configured as a snap-fit ​​with a convex-concave engagement, or assembled through mounting holes, bolts, etc.

[0060] As an example, the second fixing part can be configured as a plate.

[0061] According to one embodiment of this application, the connector 723 includes a sliding track 731 and a sliding rail 732 that cooperate with each other. The sliding rail 732 is disposed on the second fixed part 722, and the sliding track 731 is disposed on the first fixed part 721; or, the sliding rail 732 is disposed on the first fixed part 721, and the sliding track 731 is disposed on the first fixed part 721 and the second fixed part 722, so that the first fixed part 721 and the second fixed part 722 are slidably connected.

[0062] refer to Figure 7 As shown, as an example, the slide rail 732 is disposed on the first wire fixing part 721, and the slide rail 731 is disposed on the first wire fixing part 721 and the second wire fixing part 722, so that the first wire fixing part 721 and the second wire fixing part 722 are slidably connected. The slide rail 732 and the slide rail 731 can be slidably connected along the extension direction of the wire. Preferably, the slide rail 732 and the slide rail 731 can be slidably connected in a direction perpendicular to the extension direction of the wire, thereby improving the stability of the assembly of the first wire fixing part 721 and the second wire fixing part 722.

[0063] In practical use, workers can quickly assemble and adjust the position of the seal 20 and the wire in the wire groove 121 through the slide rail 732 and slide channel 731, thereby improving the stability of the wire connection and increasing the efficiency and stability of worker assembly.

[0064] According to one embodiment of this application, the connector 723 further includes a locking member (not shown in the figure), which is disposed between the slide rail 731 and the slide rail 732. The first fixing part 721 and the second fixing part 722 are limited to relative sliding displacement by the locking member.

[0065] As an example, the relative sliding between the first fixing part 721 and the second fixing part 722 is limited by a locking member. As an example, the locking member can be set as glue or a snap-fit ​​protrusion or snap-fit ​​that interlocks with each other, thereby avoiding relative displacement of the first fixing part 721 and the second fixing part 722 in the sliding assembly direction and improving the stability of the fixation.

[0066] According to one embodiment of this application, the first wire-fixing cavity 11 has an annular racetrack-shaped structure in the cross section perpendicular to the wire, and the first connecting wall 171 is wrapped around the outer periphery of the wire.

[0067] As an example, see reference Figure 1 , Figure 3 and Figure 6 As shown, the first wire-fixing cavity 11, which is shaped like a racetrack, wraps around the outer periphery of the wire, increasing the contact area between the wire and the first connecting wall 171, and making the first wire-fixing cavity 11 and the wire an interference fit, thereby improving the sealing effect.

[0068] As an example, a sealing ring can be provided between the first fixed cavity and the wire, so that the first connecting wall 171 and the wire are interference fit through the sealing ring.

[0069] According to one embodiment of this application, the main body 10 further includes a mounting part 19, which is detachably connected to the accessory to be installed.

[0070] As an example, see reference Figures 1-8 As shown, the mounting part 19 can be disposed on the outer surface of the main body 10, so that the mounting part 19 can be detachably connected to the accessory to be installed, avoiding relative displacement of the wire fixing device, thereby avoiding relative displacement between the wire and the wire fixing device after the wire is assembled, and improving the stability of the wire fixing.

[0071] As an example, the mounting part 19 can be configured as an assembly structure with a snap-fit ​​or mounting hole and bolt to improve the fixing effect.

[0072] According to one embodiment of this application, the mounting part 19 includes a mounting groove 191 and a protrusion 192. The protrusion 192 protrudes from the mounting groove 191 toward the side of the accessory to be mounted. Both the mounting groove 191 and the protrusion 192 extend along a first direction 30. The mounting groove 191 includes a third opening 911. The protrusion 192 slides and assembles with the accessory to be mounted through the third opening 911 along the first direction 30. The mounting groove 191 abuts against the outer periphery of the accessory to be mounted.

[0073] refer to Figure 1 , Figure 2 , Figure 4 and Figure 8 As shown, the mounting part 19 faces the accessory to be mounted, and the protrusion 192 can be configured as a long strip structure extending along the first direction 30. The mounting groove 191 abuts against the outer periphery of the accessory to be mounted, and the protrusion 192 can be slidably mounted on the accessory to be mounted. The relative position between the mounting part 19 and the accessory to be mounted is defined by the protrusion 192 and the mounting groove 191 to avoid misalignment.

[0074] As an example, in actual use, the protrusion 192 is slidably connected to the accessory to be installed through the third opening 911. After the protrusion 192 slides against the accessory to be installed, the mounting groove 191 abuts against the outer periphery of the accessory to be installed. Preferably, the convex surface of the protrusion 192 is flush with the height of the side of the main body 10, thereby increasing the force-bearing contact area between the mounting groove 191 and the main body 10 and the accessory to be installed, and improving the stability of the fixation.

[0075] According to one embodiment of this application, the mounting portion 19 further includes a stop wall 193 extending along the second direction 40. The stop wall 193 is disposed in the mounting groove 191 facing the third opening 911. The stop wall 193 protrudes from the mounting groove 191 toward the side of the accessory to be mounted. The first direction 30 is set at an angle to the second direction 40. The stop wall 193 is disposed at the end away from the third opening 911, and the stop wall 193 and the outer periphery of the accessory to be mounted form a snap-fit ​​surface 931.

[0076] As an example, the first direction 30 and the second direction 40 are perpendicular to each other. The snap-fit ​​surface 931 can be formed by the stepped surface between the first connecting wall 171 and the second connecting wall 172. The stop wall 193 is disposed between the first connecting wall 171 and the second connecting wall 172. The mounting part 19 can be disposed on the side of the second connecting wall 172 facing the part to be installed. Thus, after the protrusion 192 and the part to be installed are fully slidably snapped together, the assembly position between the wire fixing device and the part to be installed can be limited by the stop wall 193.

[0077] According to one embodiment of this application, the side of the mounting portion 19 facing the accessory to be mounted is an arc-shaped abutment wall 194, the abutment wall 194 surrounds the mounting groove 191, and the protrusion 192 is provided on the center line of the abutment wall 194.

[0078] refer to Figure 4 , Figure 1 and Figure 2 As shown, the arc-shaped abutment wall 194 can give the abutment wall 194 a certain elasticity, so that after the protrusion 192 slides and engages with the part to be installed, the abutment wall 194 can elastically abut against the outer surface of the part to be installed, further improving the stability of the fixing device and the part to be installed.

[0079] According to another aspect of this application, an electric motor is provided, including a wire fixing device.

[0080] According to another aspect of this application, a compressor is provided, including a motor.

[0081] In one embodiment, since in existing scroll compressors the motor and controller are located inside and outside the compressor housing, respectively, the motor typically uses a combination of terminals and sockets, with the conductive posts of the terminals connected to the lead-out sockets. This achieves a reliable connection between the motor and controller.

[0082] However, for some small compressors or compressors with weight restrictions, the lead wire socket should be placed close to the motor to save space. At the same time, existing lead wire sockets are not a sealed structure; under certain operating conditions, refrigerant or refrigeration oil can seep into the exposed parts of the lead wire socket contact terminals or terminals, reducing the compressor's insulation performance. Therefore, ensuring the lead wire socket's airtightness and a reliable connection between the terminals and terminals is crucial.

[0083] The technical problems solved by this invention are as follows:

[0084] 1. Primarily addresses the issue of poor sealing in the lead wire socket;

[0085] 2. Primarily addresses the issue of low insulation resistance at the connection point caused by the refrigerant contacting the conductive post of the terminal block inside the compressor under specific conditions;

[0086] 3. Solve the problem of unreliable connection between terminals and binding posts caused by the lead wire socket shaking inside the compressor;

[0087] 4. Improve the reliability of compressor operation;

[0088] Beneficial effects:

[0089] This invention designs a highly sealed lead-out socket for connecting motor terminals and wiring posts by analyzing the compressor's operating state under microgravity conditions. Considering the socket's sealing requirements, the socket is approximately rectangular, with sealing spaces at the top and bottom for assembling specific sealing rings, such as... Figure 5 As shown, it meets the insulation requirements of a specific compressor. Simultaneously, the socket has an arc-shaped section on the side near the motor that can closely fit the surface of the stator core, and includes a convex groove that can engage with the positioning groove of the stator core, such as... Figure 1 As shown, the socket can be fitted onto the motor surface, maintaining stability during compressor operation. Previously, the motor socket was fixed to the vertical direction of the motor along with the terminals. This new socket is fixed to the motor surface, saving space on the upper part of the motor, reducing the overall radial height of the motor, lowering compressor costs, and simultaneously meeting the miniaturization requirements of end products.

[0090] This invention provides a novel socket structure. The socket is generally rectangular, with a rectangular boss (equivalent to a protruding ridge 192) on the side of the socket closest to the stator core, which matches the size of the positioning groove in the stator core, and an arc surface (equivalent to abutting wall 194) that matches the outer diameter of the stator core. The boss (equivalent to the protruding ridge 192) is located on the center line of the arc surface (equivalent to the arc-shaped abutting wall 194). The top surface of the socket has a racetrack-shaped groove, such as... Figure 6 As shown, the terminal is inserted from this end, and a racetrack-shaped sealing ring (equivalent to the first fixed-line cavity 11) is fitted on the conductive post of the terminal. The sealing ring is interference-fitted with this groove to achieve the sealing purpose. The depth of the racetrack groove is consistent with the height of the interference-fit sealing ring.

[0091] The racetrack-shaped groove (equivalent to the first wire-fixing cavity 11) should have its upper edge at the same distance from the upper edge of the socket's top surface as its lower edge. Let this distance be a1. Similarly, the distances from the groove to the left and right edges of the top surface should also be the same, let this distance be a2. a1, a2, h t The three should satisfy the following relationship: 0.24h t ≤a1≤a2≤0.4h t .

[0092] The socket has an overall length greater than the height of the stator core. The arc surface and the rectangular boss are located on the side facade of the socket (equivalent to the first connecting wall 171). The part of the side facade that extends beyond the stator core is still a cuboid plane. This plane forms a right-angle structure (equivalent to the stop wall 193) with the arc surface (equivalent to the abutment wall 194) and the cuboid boss (equivalent to the protrusion 192), which is close to the upper and lower surfaces of the stator core.

[0093] The internal area of ​​the socket is divided into three parts, and the width of each of the three inner grooves is equal to b. The width of the inner groove b and the width of the terminal used b' should satisfy the following relationship: 1mm≤(b-b')≤2mm.

[0094] A sealing space (equivalent to sealing cavity 18) is left at the bottom. The motor wiring terminals and the sealing gasket (equivalent to sealing element) are assembled and inserted into the socket together. The sealing space (equivalent to sealing cavity) is the location of the sealing gasket. The height h4 of the sealing space (equivalent to sealing cavity 18) and the height H of the sealing gasket satisfy H≤h4≤1.3H.

[0095] The socket adopts a split design. The side of the socket away from the stator core is provided with a sliding groove, which allows the back plate of the socket (equivalent to the second wire fixing part 722) to slide out along the sliding groove, and the motor terminal and its fitted sealing gasket are inserted into the socket through this groove.

[0096] The chute is designed as a trapezoidal structure, and the long side c1, the short side c2, and the thickness h5 of the structure have a proportional relationship. The optimal range of c1, c2, and h5 should satisfy the following relationship: 0.4c1≤c2≤0.6c1, c2≤h5≤c1.

[0097] The motor terminals and their fitted sealing rings are inserted into the socket from the back. The lower part of the socket has a closed baffle (equivalent to a lower baffle of the wall), leaving only the grooves (equivalent to a second opening) for the corresponding placement of the three wires. The thickness h6 of the baffle is proportional to the height H of the sealing gasket (equivalent to the seal), and the optimal range of h6 and H should satisfy the following relationship: 2mm≤h6≤0.5H.

[0098] The back panel (equivalent to the second wire fixing part 722) needs to be sealed after the terminal is inserted into the socket. The edge of the panel (equivalent to the second wire fixing part 722) is glued to the slide. The adhesive used must have an adhesive effect at -30℃ to 150℃.

[0099] The socket extends beyond the stator core on at least one side. The curved surface and the rectangular boss are located on the side facade of the socket. The part of the side facade that extends beyond the stator core is still a cuboid plane. This plane forms a right-angle structure with the curved surface and the cuboid boss, and is close to the lower surface of the stator core.

[0100] The internal area of ​​the socket is divided into three parts, separated by two partitions. The length of the partition is the same as the total length of the terminals.

[0101] A sealing space is left at the bottom. After the motor terminal and the sealing gasket are assembled, they are inserted into the socket from the back. The sealing space is the location of the sealing gasket. The height of the sealing space h'4 and the height of the sealing gasket H satisfy H≤h'4≤1.2H.

[0102] This invention provides a novel lead-out socket structure, characterized by a rectangular boss that conforms to the size of the stator core's positioning groove on the side of the socket close to the stator core, and an arc surface (equivalent to abutment wall 194) that conforms to the outer diameter of the stator core. The boss (equivalent to protruding ridge 192) is located on the center line of the arc surface (equivalent to abutment wall 194). These two features allow the socket to be fitted onto the outer surface of the stator core, changing the previously radially upward placement of the socket to the outer surface of the stator, thus saving radial space in the motor as a whole.

[0103] The upper part of the conductive post of the terminal block is fitted with a racetrack-shaped sealing ring, which allows the compressor to achieve anti-leakage through an interference fit with the socket under microgravity conditions. The terminal block and the sealing ring are inserted into the socket together from the top. The conductive post contacts the terminal, and the sealing ring achieves a seal through an interference fit with the racetrack-shaped groove. The depth of the racetrack groove is h. tThe height of the sealing ring should be consistent with the interference fit. The distance from the upper edge of the groove to the upper edge of the socket's top surface should be the same as the distance from the lower edge of the groove to the lower edge of the socket's top surface; let this distance be a1. Similarly, the distance from the groove to the left and right edges of the top surface should also be the same; let this distance be a2. a1, a2, h t The three should satisfy the following relationship: 0.24h t ≤a1≤a2≤0.4h t .

[0104] Because there are already physical samples of the matching sealing gaskets, h t This can also be written as a constant. The ratio of 0.24 to 0.4 is a choice made to minimize the overall volume while ensuring the strength of the socket. Similarly, this can also be expressed as the relationship between a1, a2, and a constant.

[0105] The overall length of the socket is greater than the height of the stator core. The arc surface (equivalent to the abutment wall 194) and the rectangular boss are located on the side facade of the socket (equivalent to the first connecting wall 171). The part of the side facade (equivalent to the first connecting wall 171) that extends beyond the stator core is still a cuboid plane. This plane forms a right-angle structure with the arc surface (equivalent to the abutment wall 194) and the cuboid boss (equivalent to the protrusion 192), which is close to the upper and lower surfaces of the stator core. The socket is in a stable state when the compressor is running, which ensures a reliable connection between the terminal conductive post and the motor lead-out terminal. Figure 1 The curved surface of the socket, as indicated, has the same diameter as the outer diameter of the stator core and is curved, allowing it to fit snugly against the outer surface of the stator core. The rectangular protrusion on the socket allows it to fit into the positioning groove of the stator core. The side surface of the socket is flat, so the side surface and the curved surface form a right-angled platform that can be locked onto the lower surface of the stator core, preventing the socket from wobbling.

[0106] The socket's internal area is divided into three parts, with a total internal width of B. The three inner slots are all the same width, b. These slots separate the three terminals from the motor, positioning and fixing them according to the distance between the conductive posts, facilitating connection between the terminals and the posts. The width b of the three inner slots is proportional to the width b' of the terminal used, with the optimal range for b and b' satisfying the following relationship: 1mm ≤ (b-b') ≤ 2mm. The socket's internal area does not have an interference fit with the terminals. The socket's internal area is divided into three slots for inserting three terminals, each slot being slightly wider than the terminal to ensure it doesn't get stuck inside the socket. If the width exceeds 2mm, the terminal will wobble and misalign internally, preventing further assembly with the posts.

[0107] Meanwhile, a sealed space (equivalent to a sealed cavity 18) is left in the lower part of the socket. The motor wiring terminal and the sealing gasket are assembled and inserted into the socket together. The sealed space (equivalent to a sealed cavity 18) is the location of the sealing gasket. The height h4 of the sealed space (equivalent to a sealed cavity 18) and the height H of the sealing gasket satisfy H≤h4≤1.3H.

[0108] In a further preferred embodiment, the socket can adopt a split design, changing the insertion direction of the motor lead-out terminals from bottom to back. A sliding groove is provided on the side of the socket away from the stator core, allowing the back plate of the socket to slide out along the groove, through which the motor terminals and their fitted sealing gaskets are inserted into the socket. The sliding groove is designed as a sloped trapezoid, restricting the movement direction of the back plate, ensuring that the plate can only slide vertically along the back of the socket. The sliding groove is a trapezoidal structure, and the long side c1, short side c2, and thickness h5 of this structure have a proportional relationship, with the optimal range of c1, c2, and h5 satisfying the following relationships: 0.4c1≤c2≤0.6c1, c2≤h5≤c1.

[0109] In a further preferred embodiment, after the terminals and sealing gaskets are placed into the socket, adhesive is applied to the edge of the insert plate before it is inserted into the slide groove, and the insert plate and the slide groove are tightly bonded together, forming a closed structure for the entire socket. Due to the specific working environment of the compressor, the adhesive used for the insert plate is required to maintain its adhesive properties within the temperature range of -30℃ to 150℃.

[0110] The socket's internal area is divided into three parts, separated by two partitions. The partition length *l* is the same as the total length of the terminals. A sealing space (equivalent to a sealing cavity 18) is provided at the bottom. After the motor wiring terminals and sealing gaskets are assembled, they are inserted into the socket from the back. The sealing space is where the sealing gasket is located, and the height of the sealing space *h'4* is equal to the height of the sealing gasket *H*. The bottom of the socket is enclosed with a baffle, where only the grooves for the three wires are provided. The thickness *h6* of the baffle and the height *H* of the sealing gasket are proportional, with the optimal range of *h6* and *H* satisfying the following relationship: 2mm ≤ *h6* ≤ 0.5H.

[0111] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0112] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A corded device, characterized by, The device includes a main body (10), within which a first wire-fixing cavity (11) and a second wire-fixing cavity (12) are formed, separated by a first limiting wall (15). The main body (10) has a first opening (13) communicating with the first wire-fixing cavity (11) and a second opening (14) communicating with the second wire-fixing cavity (12). The first limiting wall (15) has a wire-passing hole (151) communicating with the first wire-fixing cavity (11) and the second wire-fixing cavity (12). The wire is fixed to the main body (10) through the wire-passing hole (151). The first wire-fixing cavity (11) and the second wire-fixing cavity (12) are provided with sealing members (20) facing the first opening (13) and the second opening (14) respectively, so that a sealed cavity is formed between the main body (10) and the wire. The main body (10) also includes... Multiple second limiting walls (16) are spaced apart within the second wire-fixing cavity (12), dividing the second wire-fixing cavity (12) into multiple wire-passing grooves (121). Multiple wire-passing holes (151) are provided and correspond one-to-one with the wire-passing grooves (121). The main body (10) also includes a wall (17), which surrounds the first wire-fixing cavity (11) and the second wire-fixing cavity (12). The second wire-fixing cavity (12) includes a sealing cavity (18) facing the second opening (14), and one of the sealing elements (20) is disposed in the sealing cavity (18). The first opening (13) and the second opening (14) are respectively opened at both ends of the wall (17), and the sealing element (20) abuts against the outer periphery of the wire and the wall (17).

2. The corded device of claim 1, wherein, The wall (17) includes a first connecting wall (171) and a second connecting wall (172). The first connecting wall (171) forms the first wire-fixing cavity (11), and the second connecting wall (172) forms the second wire-fixing cavity (12) and the sealing cavity (18). The first limiting wall (15) is disposed between the first connecting wall (171) and the second connecting wall (172). The first connecting wall (171) abuts against the outer periphery of the wire, and the sealing member (20) abuts against the outer periphery of the wire and between the second connecting wall (172).

3. The corded device of claim 2, wherein, The second connecting wall (172) includes: The first wire fixing part (721) faces the part to be installed; The second wire fixing part (722) is away from the part to be installed. The first wire fixing part (721) and the second wire fixing part (722) form the second wire fixing cavity (12) and the sealing cavity (18). A connector (723) is disposed between the first wire fixing part (721) and the second wire fixing part (722), and the first wire fixing part (721) and the second wire fixing part (722) are detachably connected by the connector (723).

4. The wire fixing device as described in claim 3, characterized in that, The connector (723) includes a sliding track (731) and a sliding rail (732) that cooperate with each other. The sliding rail (732) is disposed on the second fixed part (722), and the sliding track (731) is disposed on the first fixed part (721); or, the sliding rail (732) is disposed on the first fixed part (721), and the sliding track (731) is disposed on the first fixed part (721) and the second fixed part (722), so that the first fixed part (721) and the second fixed part (722) are slidably connected.

5. The wire fixing device as described in claim 4, characterized in that, The connector (723) further includes a locking member disposed between the slide rail (731) and the slide rail (732), wherein the first fixing part (721) and the second fixing part (722) are limited to relative sliding displacement by the locking member.

6. The wire fixing device as described in claim 2, characterized in that, The first fixed cavity (11) has a ring-shaped structure in the cross section perpendicular to the wire, and the first connecting wall (171) is wrapped around the outer periphery of the wire.

7. The wire fixing device according to any one of claims 1-6, characterized in that, The main body (10) also includes a mounting part (19), which is detachably connected to the accessory to be installed.

8. The wire fixing device as described in claim 7, characterized in that, The mounting part (19) includes a mounting groove (191) and a protrusion (192). The protrusion (192) protrudes from the mounting groove (191) toward the side of the accessory to be mounted. Both the mounting groove (191) and the protrusion (192) extend along a first direction (30). The mounting groove (191) includes a third opening (911). The protrusion (192) slides and assembles with the accessory to be mounted through the third opening (911) along the first direction (30). The mounting groove (191) abuts against the outer periphery of the accessory to be mounted.

9. The wire fixing device as described in claim 8, characterized in that, The mounting part (19) further includes a stop wall (193) extending along the second direction (40). The stop wall (193) is disposed in the mounting groove (191) facing the third opening (911). The stop wall (193) protrudes from the mounting groove (191) toward the side of the accessory to be mounted. The first direction (30) is set at an angle to the second direction (40). The stop wall (193) is disposed at one end away from the third opening (911), and the stop wall (193) forms a snap-fit ​​surface (931) with the outer periphery of the accessory to be mounted.

10. The wire fixing device as described in claim 8 or 9, characterized in that, The mounting part (19) has an arc-shaped abutment wall (194) on the side facing the accessory to be mounted. The abutment wall (194) surrounds the mounting groove (191), and the protrusion (192) is located on the center line of the abutment wall (194).

11. An electric motor, characterized in that, Includes the wire fixing device as described in any one of claims 1-10.

12. A compressor, characterized in that, Includes the motor as described in claim 11.

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