A kind of device for detecting pinhole insulation of air conditioner compressor enameled wire

Abstract

The application discloses a kind of for air conditioner compressor enameled wire pinhole insulation detection device, comprising: terminal base and shell;Multiple coils are installed in shell;The docking seat is equipped below coil;Terminal base top is equipped with copper column that is docked with docking seat;Copper column is fixed and sealed installation by sealing assembly;The sealing assembly includes: upper seal sleeve, lower seal sleeve, upper seal plate and lower seal plate;Wherein, the middle of copper column is equipped with multiple mutually spaced protruding parts;Upper seal plate is formed with the accommodation cavity for accommodating protruding part;Multiple sealing rings are equipped between any two adjacent protruding parts;The beneficial effects of the application are that: provide a structure with high sealing performance, so that more materials can meet the required sealing performance through its sealing structure, so that the sealing performance between copper columns is greatly improved for air conditioner compressor enameled wire pinhole insulation detection device.

Description

Technical Field

[0001] This invention relates to the field of insulation testing, and more specifically, to a device for detecting pinhole insulation in enameled wires of air conditioning compressors. Background Technology

[0002] When testing the pinhole insulation of enameled wires in air conditioner compressors, the most common problem is that multiple copper pillars need to be sealed and insulated at the same time. It is difficult to ensure the sealing effect at the same time. For example, when ceramic material is used to cover the outer surface of the copper pillars, the sealing performance is good, but the sealing life is short and it is easy to break down, resulting in poor insulation and making it unusable. Conversely, when other materials are used, it is difficult to ensure the sealing effect at the same time. For example, when insulating pads made of wood are used to cover the outer surface of the copper pillars, the insulation is good and it can be used upright, but it is easy to leak, which also makes it difficult to use normally. To address the aforementioned problems, this invention provides a highly sealing structure that allows more materials to achieve the required sealing performance, thereby significantly improving the sealing performance between copper pillars. This is used in a device for detecting pinhole insulation of enameled wires in air conditioning compressors. Summary of the Invention

[0003] The summary section of this invention provides a brief overview of the concepts, which will be described in detail in the detailed description section that follows. This summary section is not intended to identify key or essential features of the claimed invention, nor is it intended to limit the scope of the claimed invention.

[0004] To address the technical problems mentioned in the background section, some embodiments of the present invention provide a device for detecting pinhole insulation of enameled wire in an air conditioner compressor, comprising: a terminal base and a housing, the terminal base being fixed to the housing; multiple coils installed in the housing; a mating seat provided below the coils; a copper column provided above the terminal base for mating with the mating seat; the copper column and the terminal base being fixedly and sealed together by a sealing assembly; the sealing assembly comprising: an upper sealing sleeve covering a portion of the outer surface of the copper column; a lower sealing sleeve covering a portion of the outer surface of the copper column; an upper sealing plate and a lower sealing plate, the upper and lower sealing plates approaching each other from above and below respectively to partially overlap with the upper and lower sealing sleeves; wherein, the copper column has multiple spaced protrusions in the middle; the upper sealing plate forms a receiving cavity for accommodating the protrusions; multiple sealing rings are provided between any two adjacent protrusions, the sealing rings being made of a flexible compressible material; when the sealing rings are installed in the receiving cavity, the sealing rings abut against the outer wall of the copper column and the inner wall of the receiving cavity and are in a compressed state.

[0005] Furthermore, an intermediate sealing plate is provided between the upper sealing plate and the lower sealing plate; the two end faces of the intermediate sealing plate abut against the end faces of the upper sealing plate and the lower sealing plate, respectively; the intermediate sealing plate is fixed to the terminal base to limit the lower surface of the upper sealing plate; the upper sealing plate contacts the terminal base to limit the upper end face of the upper sealing plate.

[0006] Furthermore, a mounting cavity is formed on the terminal base for mounting an upper sealing plate, a lower sealing plate, and an intermediate sealing plate so that the upper sealing plate, the lower sealing plate, and the intermediate sealing plate are wrapped by the terminal base; a positioning groove is formed on the inner wall of the mounting cavity; an upwardly protruding positioning part is formed on the upper sealing plate, and the positioning part is inserted into the positioning groove to position the upper sealing plate with the terminal base; a receiving cavity is at least partially formed in the positioning part so that the plurality of protrusions are completely located in the receiving cavity.

[0007] Furthermore, an annular groove is formed in the intermediate sealing plate, and a sealing ring is provided in the annular groove; the diameter of the annular groove is larger than the diameter of the protrusion; a limiting block is formed on the copper column, the limiting block abuts against the sealing ring in the annular groove and compresses the sealing ring in the annular groove; a limiting groove is formed in the lower sealing plate, and the limiting groove is used to accommodate the limiting block.

[0008] Furthermore, both the upper and lower sealing sleeves are made of insulating wood, while the upper sealing plate, middle sealing plate, and lower sealing plate are all made of PEEK plastic.

[0009] Furthermore, the copper pillar comprises: a first pipe segment, a second pipe segment, a third pipe segment, and a fourth pipe segment; three protrusions are provided, which are respectively fixed on the first pipe segment, the second pipe segment, and the third pipe segment; a limiting block is fixed on the fourth pipe segment; a threaded groove is formed on the first pipe segment; a threaded block is formed on the fourth pipe segment; threaded blocks and threaded grooves are formed above and below the second and third pipe segments respectively so that the first pipe segment, the second pipe segment, the third pipe segment, and the fourth pipe segment are fixed together by threaded connection.

[0010] Furthermore, the second, third, and fourth pipe sections are all equipped with clamping components, which are used to compress the sealing ring.

[0011] Furthermore, the second, third, and fourth pipe sections each have a first interconnected groove; the second pipe section has a second and third groove that are connected to or interconnected with the first groove; the third pipe section has a fourth and fifth groove that are connected to or interconnected with the first groove; the fourth pipe section has a sixth and seventh groove that are connected to or interconnected with the first groove; the fourth pipe section also has an eighth groove that is connected to the sixth groove; multiple clamping components are provided, and are installed in at least the third, fifth, seventh, and eighth grooves respectively; the clamping components include: a push plate; the first groove is filled with a portion of hydraulic oil and a portion of air; a pushing component is installed in the first groove, and the pushing component compresses the first groove to push the push plate upward through the hydraulic oil and air, thereby compressing the sealing ring.

[0012] Furthermore, the first groove includes a small groove and a large groove; a pushing member is disposed in the large groove; the pushing member includes: a sealing piston, slidably disposed in the large groove; a compression spring, disposed in the large groove and abutting against the end wall of the sealing piston and the large groove; a threaded rod, threadedly connected to the large groove; a push rod, fixed to the threaded rod and with a universal ball installed at the end away from the threaded rod; and a connecting plate, fixedly installed with the sealing piston; wherein the universal ball abuts against the connecting plate.

[0013] Furthermore, the threaded rod and the push rod are threadedly connected; the position of the push rod relative to the threaded rod can be adjusted so that the distance between the connecting plate and the threaded rod is adjustable; a hexagonal groove, a cross groove, or a slotted groove is opened at the end of the threaded rod away from the connecting plate.

[0014] The beneficial effects of this invention are as follows: it provides a highly sealing structure that allows more materials to achieve the required sealing performance through its sealing structure, thereby greatly improving the sealing performance between copper pillars, for use in an air conditioning compressor enameled wire pinhole insulation detection device. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention, making other features, objects, and advantages of the invention more apparent. The illustrative embodiments of the invention, along with their descriptions, are used to explain the invention and do not constitute an undue limitation of the invention.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram: Figure 1 This is an overall schematic diagram according to Embodiment 1 of the present invention; Figure 2 This is a structural diagram of a part of an embodiment, mainly showing the structure of the sealing assembly; Figure 3 yes Figure 2 Enlarged view of A in the middle; Figure 4 This is a structural schematic diagram of a part of an embodiment, mainly showing the structure of the annular groove; Figure 5 This is a structural schematic diagram as part of an embodiment, mainly showing the cross-sectional structure of the lower sealing plate; Figure 6 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the copper pillar and some surrounding parts; Figure 7 This is a structural schematic diagram of a part of the embodiment, mainly showing... Figure 6 sectional structure; Figure 8 yes Figure 7 Enlarged view of B in the middle; Figure 9 yes Figure 7 Enlarged view of C in the middle; Figure 10 yes Figure 7 Enlarged view of D; Figure 11 This is a structural schematic diagram of a part of the embodiment, mainly showing... Figure 7 The structure of the explosion diagram.

[0018] Figure label: Terminal base 1, outer shell 2, coil 3, mating seat 4, copper pillar 5, sealing assembly 6, mounting cavity 11, positioning groove 12, protrusion 51, first pipe section 52, second pipe section 53, third pipe section 54, fourth pipe section 55, threaded groove 56, threaded block 57, first groove 58, upper sealing sleeve 61, lower sealing sleeve 62, upper sealing plate 63, lower sealing plate 64, intermediate seal 65, sealing ring 66, limiting block 67, pressing part 68, pushing part 69, positioning part 631, limiting groove 641, annular groove 651, sealing piston 691, compression spring 692, connecting plate 693, push rod 694, threaded rod 695, universal ball 696. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0021] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1 Reference Figure 1-5 ; A device for detecting pinhole insulation of enameled wire in an air conditioner compressor includes a terminal base 1 and a housing 2, with the terminal base 1 fixed to the housing 2. Multiple coils 3 are installed in the housing 2; a mating seat 4 is located below each coil 3. The mating seat 4 is electrically connected to the coil 3. A copper post 5 is located above the terminal base 1, mating with the mating seat 4. A pinhole is formed in the mating seat, and the copper post 5 is inserted into the pinhole. The copper post 5 and the terminal base 1 are fixedly and sealed together by a sealing assembly 6. The sealing assembly 6 seals the copper post 5 and the terminal base 1.

[0025] The sealing assembly 6 includes: an upper sealing sleeve 61, a lower sealing sleeve 62, an upper sealing plate 63, and a lower sealing plate 64. The upper sealing sleeve 61 is fitted onto a portion of the outer surface of the copper pillar 5; the lower sealing sleeve 62 is fitted onto a portion of the outer surface of the copper pillar 5; the upper sealing plate 63 and the lower sealing plate 64 approach each other from above and below, respectively, to the point of partially overlapping with the upper sealing sleeve 61 and the lower sealing sleeve 62. An intermediate sealing plate 65 is located between the upper sealing plate 63 and the lower sealing plate 64.

[0026] The copper pillar 5 has multiple spaced protrusions 51 in the middle, specifically three in this embodiment. A mounting cavity 11 is formed on the terminal base 1, which is used to mount the upper sealing plate 63, the lower sealing plate 64, and the intermediate sealing plate 65 so that the upper sealing plate 63, the lower sealing plate 64, and the intermediate sealing plate 65 are wrapped by the terminal base 1. A positioning groove 12 is formed on the inner wall of the mounting cavity 11. An upwardly protruding positioning part 631 is formed on the upper sealing plate 63, and the positioning part 631 is inserted into the positioning groove 12 to position the upper sealing plate 63 with the terminal base 1. The upper sealing plate 63 has a receiving cavity for accommodating the protrusions 51. The receiving cavity is at least partially formed in the positioning part 631 so that the multiple protrusions 51 are completely located within the receiving cavity. Multiple sealing rings 66 are provided between any two adjacent protrusions 51. The sealing rings 66 are made of a flexible, compressible material. When the sealing rings 66 are installed in the receiving cavity, they abut against the outer wall of the copper pillar 5 and the inner wall of the receiving cavity and are in a compressed state.

[0027] Furthermore, the two end faces of the intermediate sealing plate 65 abut against the end faces of the upper sealing plate 63 and the lower sealing plate 64, respectively; the intermediate sealing plate 65 is fixed to the terminal base 1 to limit the lower surface of the upper sealing plate 63; the upper sealing plate 63 contacts the terminal base 1 to limit the upper end face of the upper sealing plate 63. An annular groove 651 is formed in the intermediate sealing plate 65, and a sealing ring 66 is provided in the annular groove 651; the diameter of the annular groove 651 is larger than the diameter of the protrusion 51; a limiting block 67 is formed on the copper pillar 5, and the limiting block 67 abuts against the sealing ring 66 in the annular groove 651 and compresses the sealing ring 66 in the annular groove 651; a limiting groove 641 is formed in the lower sealing plate 64 to accommodate the limiting block 67. The upper sealing sleeve 61 and the lower sealing sleeve 62 are both made of insulating wood, and the upper sealing plate 63, the intermediate sealing plate 65, and the lower sealing plate 64 are all made of PEEK plastic. The protrusion 51 and the limiting block 67 are both integrally formed with the copper pillar 5.

[0028] Example 2 Based on Embodiment 1, the connection relationship between the protrusion 51 and the limiting block 67 on the copper pillar 5 is further improved, as follows: Since both the protrusion 51 and the limiting block 67 are integrally formed with the copper pillar 5, when installing the sealing ring 66, it is necessary to expand the sealing ring 66 and then fit it into the copper pillar 5, positioning it between any two protrusions 51. This installation method is difficult, and the sealing ring 66 may deform after installation, affecting its function. To improve the above problems, this embodiment proposes the following solution: Threads are formed on a portion of the outer surface of the copper pillar 5. To facilitate threading, clearance grooves are provided on both sides of the thread to meet machining requirements. Specifically, the threads are formed at the locations where the protrusion 51 is installed; that is, there are at least three threads on the copper pillar 5. The protrusion 51 has a ring-shaped structure, and its inner ring surface is threaded for threaded connection with the copper pillar 5. By first installing the sealing ring 66 and then inserting the protrusion 51, the protrusion 51 reaches the threaded area, facilitating thread engagement and securing the protrusion 51 to the copper pillar 5.

[0029] In other embodiments, the protrusion 51 and the copper pillar 5 can also be radially positioned by a locating pin to achieve the function that the protrusion 51 can be detached from the copper pillar 5.

[0030] In other embodiments, the protrusion 51 and the copper pillar 5 can also be glued or welded together to achieve the function of installing the sealing ring 66 first and then installing the protrusion 51.

[0031] Example 3 Based on Embodiment 1, the connection relationship between the protrusion 51 and the limiting block 67 on the copper pillar 5 is further improved as follows: To address the problems described in Embodiment 2, this embodiment proposes the following solution: Reference Figure 1-11 The copper column 5 comprises a first pipe section 52, a second pipe section 53, a third pipe section 54, and a fourth pipe section 55. Three protrusions 51 are provided, respectively fixed to the first pipe section 52, the second pipe section 53, and the third pipe section 54. A limiting block 67 is fixed to the fourth pipe section 55. A threaded groove 56 is formed on the first pipe section 52, and a threaded block 57 is formed on the fourth pipe section 55. Threaded blocks 57 and threaded grooves 56 are formed above and below the second pipe section 53 and the third pipe section 54, respectively, so that the first pipe section 52, the second pipe section 53, the third pipe section 54, and the fourth pipe section 55 are fixed together by threaded connection. Each of the second pipe section 53, the third pipe section 54, and the fourth pipe section 55 is provided with a clamping element 68, which is used to compress the sealing ring 66.

[0032] Furthermore, the second pipe section 53, the third pipe section 54, and the fourth pipe section 55 each have a first groove 58 that is interconnected; the second pipe section 53 has a second groove and a third groove that are interconnected with or related to the first groove 58; the third pipe section 54 has a fourth groove and a fifth groove that are interconnected with or related to the first groove 58; the fourth pipe section 55 has a sixth groove and a seventh groove that are interconnected with or related to the first groove 58; the fourth pipe section 55 also has an eighth groove that is interconnected with the sixth groove; multiple clamping members 68 are provided and are respectively installed in the third groove, the fifth groove, the seventh groove, and the eighth groove; the clamping member 68 includes a push plate; the first groove 58 is filled with a portion of hydraulic oil and a portion of air; a pushing member 69 is installed in the first groove 58, and the pushing member 69 compresses the first groove 58 to push the push plate upward through the hydraulic oil and air, thereby compressing the sealing ring 66. The first groove 58 includes a small groove and a large groove; the pushing member 69 is located in the large groove.

[0033] Further, the pushing component 69 includes: a sealing piston 691, which is slidably disposed in a large groove; a compression spring 692 is provided at one end of the sealing piston 691, which is disposed in the large groove and abuts against the end wall of the sealing piston 691 and the large groove. The compression spring 692 is used to subject the sealing piston 691 to a force away from the small groove. A connecting plate 693 is mounted on the sealing piston 691, and the connecting plate 693 is fixed to the sealing piston 691 by adhesive. A push rod 694 is provided at the end of the connecting plate 693, and a threaded rod 695 is provided at the end of the push rod 694 away from the connecting plate 693. The threaded rod 695 is threadedly connected to the large groove, and the push rod 694 is fixed to the threaded rod 695, with a universal ball 696 installed at the end away from the threaded rod 695. The omnidirectional ball 696 abuts against the connecting plate 693, so that the push rod 694 can rotate without being resisted by the connecting plate 693, thus making the threaded rod 695 rotate and push into the large groove more smoothly and with less effort.

[0034] Furthermore, the threaded rod 695 is threadedly connected to the push rod 694; the push rod 694 can be adjusted relative to the threaded rod 695 so that the distance between the connecting plate 693 and the threaded rod 695 is adjustable; a hexagonal groove, a cross groove, or a slotted groove is provided at the end of the threaded rod 695 away from the connecting plate 693.

[0035] Operating conditions and gain: When in use, first connect the docking seat 4 with the copper post 5, that is, insert the copper post 5 into the pin hole on the docking seat 4, and then fix the outer shell 2 and the terminal base 1 together, specifically by bolts.

[0036] Before fixing the terminal base 1 to the housing 2, the terminal base 1 needs to be sealed. The sealing is mainly achieved by the sealing component 6, as follows: First, install the upper sealing plate 63, which is tightly attached to the lower end face of the terminal base 1. Then, install the copper pillar 5 and insert it into the receiving cavity. The upper sealing sleeve 61 is fixed to the upper sealing plate 63 and is integrally formed. After the copper pillar 5 is inserted, it abuts against the inner wall of the upper sealing sleeve 61. Next, install the intermediate sealing plate 65, then install the limiting block 67 and the lower sealing sleeve 62, and finally install the lower sealing plate 64, so that the upper end face of the lower sealing plate 64 abuts against the limiting block 67. Finally, a bolt passes through the terminal base 1, the upper sealing plate 63, the intermediate sealing plate 65, and the lower sealing plate 64, thus fixing the three together.

[0037] The sealing sleeve uses insulating pads to better insulate the copper pillars 5, preventing short circuits between them. Multiple sealing rings 66 are present in the copper pillars 5 and the receiving cavity. These sealing rings 66 are compressed radially, resulting in a more stable and tighter seal between the copper pillars 5 and the inner wall of the receiving cavity, thus providing a reliable seal in the axial direction (vertical direction). Furthermore, the sealing rings 66 in the annular groove 651 are compressed axially under pressure from above and below, further providing a reliable seal in the radial direction.

[0038] To facilitate the installation of the sealing ring 66, the first pipe section 52, the second pipe section 53, the third pipe section 54, and the fourth pipe section 55 are fixed together by threaded connections. This allows for the disassembly of the mounting position of the sealing ring 66. Specifically, the sealing ring 66 is first installed on the second pipe section 53, then the first pipe section 52 is installed on the second pipe section 53, and the protrusions 51 on the first and second pipe sections 52 and 53 limit the sealing ring 66. Next, the sealing ring 66 is installed on the third pipe section 54, the third pipe section 54 is installed on the second pipe section 53, and the sealing ring 66 is installed on the fourth pipe section 55, and the fourth pipe section 55 is installed on the third pipe section 54. This installation method allows the sealing ring 66 to be easily inserted, and then its upper and lower limits are applied.

[0039] Before installing the lower sealing sleeve 62, the copper pillar 5 has already been inserted into the receiving cavity. At this time, the threaded rod 695 is rotated by a tool. The threaded rod 695 drives the push rod 694 to rotate. However, the threaded rod 695 is connected to the large groove thread, so when the threaded rod 695 is rotated, it can be pushed inward, which in turn drives the push rod 694 to move forward. The push rod 694 pushes the connecting plate 693 through the universal ball 696. The connecting plate 693 pushes the sealing piston 691, which in turn compresses the insulating oil and air in the first groove 58. Then, the hydraulic pressure causes the clamping member 68 to move. Specifically, the push plate moves upward and presses the sealing ring 66, further improving the sealing effect. At the same time, it increases the deformation capacity of the sealing ring 66, making the sealing ring 66 fit more tightly against the inner wall or other outer wall, resulting in a better sealing effect.

[0040] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A device for detecting pinhole insulation of enameled wire in an air conditioner compressor, comprising: Terminal base (1) and housing (2), the terminal base (1) and housing (2) are fixed together; Multiple coils (3) are installed in the outer casing (2); a docking seat (4) is provided below the coils (3); A copper column (5) is provided above the terminal base (1) to connect with the docking seat (4); The copper column (5) and the terminal base (1) are fixed and sealed together by a sealing assembly (6); Its features are: The sealing assembly (6) includes: Upper sealing sleeve (61) is fitted onto the outer surface of part of the copper column (5); The lower sealing sleeve (62) is fitted onto the outer surface of part of the copper column (5); The upper sealing plate (63) and the lower sealing plate (64) approach each other from above and below to partially overlap with the upper sealing sleeve (61) and the lower sealing sleeve (62); The copper column (5) has multiple protrusions (51) spaced apart in the middle; the upper sealing plate (63) forms a receiving cavity for accommodating the protrusions (51); multiple sealing rings (66) are provided between any two adjacent protrusions (51), and the sealing rings (66) are made of flexible compressible material; when the sealing rings (66) are installed in the receiving cavity, the sealing rings (66) abut against the outer wall of the copper column (5) and the inner wall of the receiving cavity and are in a compressed state; An intermediate sealing plate (65) is provided between the upper sealing plate (63) and the lower sealing plate (64); the two ends of the intermediate sealing plate (65) abut against the end faces of the upper sealing plate (63) and the lower sealing plate (64), respectively. The intermediate sealing plate (65) is fixed to the terminal base (1) to limit the lower surface of the upper sealing plate (63); The upper sealing plate (63) contacts the terminal base (1) to limit the upper end face of the upper sealing plate (63); A mounting cavity (11) is formed on the terminal base (1). The mounting cavity (11) is used to install the upper sealing plate (63), the lower sealing plate (64) and the middle sealing plate (65) so that the upper sealing plate (63), the lower sealing plate (64) and the middle sealing plate (65) are wrapped by the terminal base (1). A positioning groove (12) is formed on the inner wall of the mounting cavity (11); an upwardly protruding positioning part (631) is formed on the upper sealing plate (63), and the positioning part (631) is inserted into the positioning groove (12) to position the upper sealing plate (63) with the terminal base (1); The receiving cavity is at least partially opened in the positioning part (631) so that the plurality of protrusions (51) are completely located in the receiving cavity.

2. The device for detecting pinhole insulation of enameled wire in an air conditioner compressor according to claim 1, characterized in that: An annular groove (651) is provided in the intermediate sealing plate (65), and a sealing ring (66) is provided in the annular groove (651). The diameter of the annular groove (651) is larger than the diameter of the protrusion (51); A limiting block (67) is formed on the copper column (5). The limiting block (67) abuts against the sealing ring (66) in the annular groove (651) and compresses the sealing ring (66) in the annular groove (651). A limiting groove (641) is provided in the lower sealing plate (64), and the limiting groove (641) is used to accommodate the limiting block (67).

3. The device for detecting pinhole insulation of enameled wire in air conditioning compressors according to any one of claims 1-2, characterized in that: The upper sealing sleeve (61) and the lower sealing sleeve (62) are both made of insulating wood, and the upper sealing plate (63), the middle sealing plate (65) and the lower sealing plate (64) are all made of PEEK plastic.

4. The device for detecting pinhole insulation of enameled wire in an air conditioner compressor according to claim 1, characterized in that: The copper column (5) includes: a first pipe section (52), a second pipe section (53), a third pipe section (54), and a fourth pipe section (55); There are three protrusions (51), which are fixed on the first pipe section (52), the second pipe section (53) and the third pipe section (54) respectively; the limiting block (67) is fixed on the fourth pipe section (55); A threaded groove (56) is formed on the first pipe section (52); a threaded block (57) is formed on the fourth pipe section (55); a threaded block (57) and a threaded groove (56) are formed above and below the second pipe section (53) and the third pipe section (54) respectively, so that the first pipe section (52), the second pipe section (53), the third pipe section (54) and the fourth pipe section (55) are fixed together by threaded connection.

5. The device for detecting pinhole insulation of enameled wire in an air conditioning compressor according to any one of claims 4, characterized in that: The second pipe section (53), the third pipe section (54) and the fourth pipe section (55) are all equipped with clamping elements (68), which are used to squeeze the sealing ring (66).

6. The device for detecting pinhole insulation of enameled wire in an air conditioner compressor according to claim 5, characterized in that: The second pipe section (53), the third pipe section (54) and the fourth pipe section (55) are all connected by a first trench (58); The second pipe section (53) is provided with a second and a third trench that are connected to or mutually connected to the first trench (58); The third pipe section (54) is provided with a fourth and a fifth channel that are connected to or mutually connected to the first channel (58); The fourth pipe section (55) is provided with a sixth and a seventh channel that are connected to or mutually connected to the first channel (58); An eighth trench is also opened in the fourth pipe section (55), which is connected to the sixth trench; Multiple clamping elements (68) are provided, and are installed in at least the third, fifth, seventh and eighth slots respectively; The clamping component (68) includes: a push plate; The first slot (58) is filled with a mixture of hydraulic oil and air. The pusher (69) is installed in the first groove (58). The pusher (69) compresses the first groove (58) and pushes the push plate upward by hydraulic oil and air, thereby compressing the sealing ring (66).

7. The device for detecting pinhole insulation of enameled wire in an air conditioner compressor according to claim 6, characterized in that: The first slot (58) includes a small slot and a large slot; the pusher (69) is located in the large slot; The pusher (69) includes: A sealing piston (691) is slidably disposed in a large groove; A compression spring (692) is disposed in a large groove and abuts against the sealing piston (691) and the end wall of the large groove; Threaded rod (695), connected to large groove thread; A push rod (694) is fixed to a threaded rod (695) and a ball joint (696) is mounted at the end away from the threaded rod (695). The connecting plate (693) is fixedly installed with the sealing piston (691); Among them, the omnidirectional ball (696) abuts against the connecting plate (693).

8. The device for detecting pinhole insulation of enameled wire in an air conditioner compressor according to claim 7, characterized in that: The threaded rod (695) is threadedly connected to the push rod (694); The push rod (694) can be adjusted relative to the threaded rod (695) so that the distance between the connecting plate (693) and the threaded rod (695) is adjustable; The threaded rod (695) has a hexagonal groove, cross groove, or slotted groove at the end away from the connecting plate (693).

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