CN216625480U - Motor joint device for R290 refrigerant compressor - Google Patents
Motor joint device for R290 refrigerant compressor Download PDFInfo
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- CN216625480U CN216625480U CN202123305525.0U CN202123305525U CN216625480U CN 216625480 U CN216625480 U CN 216625480U CN 202123305525 U CN202123305525 U CN 202123305525U CN 216625480 U CN216625480 U CN 216625480U
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- proof
- motor stator
- junction box
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Abstract
The utility model discloses a motor joint device for an R290 refrigerant compressor, which comprises a wire holder, a motor stator junction box and an explosion-proof structure, wherein the wire holder is fixedly connected with the motor stator junction box; the explosion-proof structure is arranged between the wire holder and the motor stator junction box; the explosion-proof structure comprises an explosion-proof chassis and a fixing ring; the explosion-proof chassis is of a circular plate-shaped structure, is arranged at the end part of the wire holder and is close to one end of the motor stator junction box; one side of the explosion-proof chassis is fixed with the wire holder in a sealing way, and the other end of the explosion-proof chassis is fixed with the motor stator junction box in a sealing way; the fixing ring is of a circular ring structure and is sleeved outside the wire holder; one end of the fixing ring is fixedly connected with the periphery of the explosion-proof chassis, and the inner wall of the other end of the fixing ring is fixed with the outer side of the wire holder in a sealing manner; the explosion-proof structure is used for isolating and sealing the wire holder and the motor stator junction box, so that dirt or impurities are prevented from being accumulated at the insulated terminal of the wire holder, the phenomenon of discharging at the wire holder is avoided, and the explosion-proof effect is realized.
Description
Technical Field
The utility model belongs to the technical field of compressors, and particularly relates to a motor joint device for an R290 refrigerant compressor.
Background
At present, because R290 refrigerant (propane, C3H8) is non-greenhouse gas, the ozone layer is not damaged in the using process, and the application in the refrigeration field is gradually increased; and the R290 refrigerant belongs to combustible gas, and can form an explosive mixture when mixed with air to reach the characteristic conditions, so that the danger of combustion and explosion is caused when encountering heat sources and open flames.
In the existing air-conditioning compressor, a motor connector is mostly directly inserted and mounted on an upper cover 2 of the compressor, as shown in figure 1; after the wire holder 1 is connected with the motor stator junction box 3, a gap exists; if dirt and impurities enter the system during operation, the dirt and the impurities reach the upper cover 2 of the compressor along with the air flow and are collected and attached to the insulating terminal of the wire holder 1, so that the insulating safety distance is shortened, and a discharge phenomenon occurs under an extreme condition; if air is mixed in the system, the mixing proportion reaches the propane explosion range, explosion can be generated in the sealed cavity of the compressor; therefore, when the R290 refrigerant is used, special attention needs to be paid to safety.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides a motor connector device for an R290 refrigerant compressor, which aims to solve the technical problem that propane is easy to explode in a sealed cavity of the compressor due to a gap between an upper cover wire holder and a motor stator junction box after the upper cover wire holder and the motor stator junction box are connected.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a motor joint device for an R290 refrigerant compressor, which comprises a wire holder, a motor stator junction box and an explosion-proof structure, wherein the wire holder is fixedly connected with the wire holder; the explosion-proof structure is arranged between the wire holder and the motor stator junction box; the explosion-proof structure comprises an explosion-proof chassis and a fixing ring; the explosion-proof chassis is of a circular plate-shaped structure, is arranged at the end part of the wire holder and is close to one end of the motor stator junction box; one side of the explosion-proof chassis is fixed with the wire holder in a sealing way, and the other end of the explosion-proof chassis is fixed with the motor stator junction box in a sealing way; the fixing ring is of a circular ring structure and is sleeved outside the wire holder; one end of the fixing ring is fixedly connected with the periphery of the explosion-proof chassis, and the inner wall of the other end of the fixing ring is fixed with the outer side of the wire holder in a sealing mode.
Furthermore, a plurality of pin through holes are formed in the explosion-proof chassis, and the arrangement positions of the pin through holes are matched with the positions of pins on the wire holder; the contact pin on the wire holder penetrates through the contact pin through hole.
Furthermore, the contact pin and the contact pin through hole are fixed in a sealing mode.
Furthermore, the inner diameter of the fixing ring is matched with the outer diameter of the wire holder.
Furthermore, the explosion-proof chassis and the fixing ring are of an integrally formed structure.
Furthermore, the explosion-proof chassis and the fixing ring are both made of engineering plastics.
Further, the wire holder is fixedly arranged on the upper cover of the compressor.
Furthermore, the wiring end of the motor stator wiring box is connected with the wiring end of the motor stator.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a motor joint device for an R290 refrigerant compressor, which is characterized in that an explosion-proof structure is arranged between a wire holder and a motor stator junction box, and the wire holder and the motor stator junction box are isolated and sealed by the explosion-proof structure, so that the accumulation of dirt or impurities at an insulated terminal of the wire holder is avoided, the insulated safe distance is effectively ensured, the discharge phenomenon at the wire holder is avoided, and the explosion-proof effect is further realized; the structure is simple, the installation is convenient, the assembly requirements of the refitting of the existing structure and the new product can be simultaneously met, the cost is lower, and the application range is wide.
Furthermore, the contact pin through hole is formed in the explosion-proof chassis, so that the contact pin on the wire holder penetrates through the explosion-proof chassis and then extends into the motor stator junction box, and the reliable connection of a circuit is ensured.
Furthermore, the anti-explosion effect of the anti-explosion chassis is ensured by sealing and fixing the contact pins and the contact pin through holes.
Drawings
FIG. 1 is a schematic view of a conventional connection structure between a motor stator and an upper cover of a compressor;
FIG. 2 is a schematic structural diagram of a motor coupling device according to an embodiment;
FIG. 3 is a top view of an explosion-proof structure in the motor coupling apparatus according to the embodiment;
fig. 4 is a sectional view of an explosion-proof structure in the motor joint apparatus according to the embodiment.
The anti-explosion compressor comprises a wiring base 1, a compressor upper cover 2, a motor stator junction box 3, a motor stator 4 and an anti-explosion structure 5, wherein the wiring base is connected with the compressor upper cover; the explosion-proof chassis 51, the fixing ring 52 and the pin through hole 53.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The utility model provides a motor joint device for an R290 refrigerant compressor, which comprises a wire holder 1, a motor stator junction box 3 and an explosion-proof structure 5; the wire holder 1 is fixedly arranged on the upper cover 2 of the compressor, and the explosion-proof structure 5 is arranged between the wire holder 1 and the motor stator junction box 3; one side of the explosion-proof structure 5 is hermetically fixed with the wire holder 1, and the other side of the explosion-proof structure is hermetically fixed with the motor stator junction box 3; the wiring end of the motor stator wiring box 3 is connected with the wiring end of the motor stator 4.
The explosion-proof structure 5 comprises an explosion-proof chassis 51 and a fixing ring 52; the explosion-proof chassis 51 is of a circular plate-shaped structure, and the explosion-proof chassis 51 is arranged at the end part of the wire holder 1 and close to one end of the motor stator junction box 3; one side of the explosion-proof chassis 51 is hermetically fixed with the wire holder 1, and the other end is hermetically fixed with the motor stator junction box 3; the fixing ring 52 is of a circular ring structure, and the fixing ring 52 is sleeved on the outer side of the wire holder 1; one end of the fixing ring 52 is fixedly connected with the periphery of the explosion-proof chassis 51, and the inner wall of the other end of the fixing ring 52 is fixed with the outer side of the wire holder 1 in a sealing manner.
In the utility model, a plurality of pin through holes 53 are arranged on an explosion-proof chassis 51, and the arrangement positions of the pin through holes 53 are matched with the positions of pins on a wire holder 1; the contact pin on the wire holder 1 penetrates through the contact pin through hole 53 and extends into the motor stator junction box 3; wherein, the pins on the wire holder 1 are sealed and fixed with the pin through holes 53; the contact pin through hole is formed in the explosion-proof chassis, so that the contact pin on the wire holder penetrates through the explosion-proof chassis and then extends into the motor stator junction box, and the reliable connection of a circuit is ensured; through sealing and fixing the contact pin and the contact pin through hole, the explosion-proof effect of the explosion-proof chassis is ensured.
In the utility model, the explosion-proof chassis 51 and the fixing ring 52 are both made of engineering plastics; preferably, the explosion-proof chassis 51 and the fixing ring 52 are integrally formed; the diameter of the explosion-proof chassis 51 is matched with the diameter of the end of the junction box 1, and the inner diameter of the fixing ring 52 is matched with the outer diameter of the junction box 1.
The assembly method and the working principle are as follows:
when the compressor is integrally assembled, the motor joint device arranges the explosion-proof structure between the motor stator junction box and the wire holder, seals and fixes the fixing ring in the explosion-proof structure and the end part of the wire holder, and seals and fixes the end part of the motor stator junction box and the explosion-proof chassis in the explosion-proof structure; through set up explosion-proof construction between wire holder and motor stator terminal box, utilize explosion-proof construction to carry out isolated sealing to wire holder and motor stator terminal box, avoided dirty or impurity gathering in the insulating terminal department of wire holder, effectively guaranteed insulating safe distance, avoided wire holder department discharge phenomenon to appear, and then realize explosion-proof effect.
The motor joint device for the R290 refrigerant compressor is simple and convenient to operate, and is directly matched with the existing motor stator junction box and the existing wire holder; the explosion-proof structure is arranged at the end part of the wire holder, so that the internal space of the wire holder is effectively sealed and protected, and the protection effect is good; the explosion-proof structure has strong adaptability, and can be designed into corresponding explosion-proof structures according to different sizes of wire holders.
Examples
As shown in fig. 2-3, take a certain type of R290 refrigerant compressor as an example; the embodiment provides a motor joint device for an R290 refrigerant compressor, which comprises a wire holder 1, a motor stator junction box 3 and an explosion-proof structure 5; the wire holder 1 is fixedly arranged on the upper cover 2 of the compressor, and the explosion-proof structure 5 is arranged between the wire holder 1 and the motor stator junction box 3; wherein, the contact pin of the wire holder 1 links to each other with the binding post of motor stator terminal box 3, and the wiring end of motor stator terminal box 3 links to each other with the wiring end of motor stator 4.
The explosion-proof structure 5 is of a cylindrical structure without a cover, and the cylindrical structure without the cover is fastened and fixed at the end part of the wire holder 1 and is arranged close to one end of the motor stator junction box 3; one side of the explosion-proof structure 5 is fixed with the wire holder 1 in a sealing way, and the other side of the explosion-proof structure is fixed with the motor stator junction box 3 in a sealing way.
The explosion-proof structure 5 comprises an explosion-proof chassis 51 and a fixing ring 52, the explosion-proof chassis 51 is a circular plate-shaped structure, and the explosion-proof chassis 51 is arranged at the end part of the wire holder 1 and is close to one end of the motor stator junction box 3; one side of the explosion-proof chassis 51 is hermetically fixed with the wire holder 1, and the other end is hermetically fixed with the motor stator junction box 3; three pin through holes 53 are uniformly formed in the explosion-proof chassis 51, and the arrangement positions of the three pin through holes 53 are matched with the positions of the pins on the wire holder 1; the size of the opening of the pin through hole is matched with the outer diameter of a pin on the wire holder 1; and the contact pin on the wire holder 1 is hermetically fixed with the through hole of the contact pin.
The fixing ring 52 is of a circular ring structure, and the fixing ring 52 is sleeved on the outer side of the wire holder 1; one end of the fixing ring 52 is fixedly connected with the periphery of the explosion-proof chassis 51, and the inner wall of the other end of the fixing ring 52 is fixed with the outer side of the wire holder 1 in a sealing manner; the explosion-proof chassis 51 and the fixing ring 52 are both made of engineering plastics; in this embodiment, an integrated molding structure is adopted between the explosion-proof chassis 51 and the fixing ring 52, the diameter of the explosion-proof chassis 51 is matched with the diameter of the end of the junction box 1, and the inner diameter of the fixing ring 52 is matched with the outer diameter of the wire holder 1.
In the motor joint device for the R290 refrigerant compressor, the explosion-proof structure is placed between the motor stator junction box and the wire holder, and the wire holder and the motor stator junction box are isolated and sealed by the explosion-proof structure, so that the accumulation of dirt or impurities at the insulated terminal of the wire holder is avoided, and the compressor motor joint explosion-proof device special for the R290 refrigerant compressor is formed; the explosion-proof structure is made of engineering plastics and does not react with the refrigeration oil or the refrigerant in the compressor; the thickness of the explosion-proof structure is selected according to actual requirements, and the thickness of the explosion-proof structure is not too thick on the premise of ensuring the electrical connection strength; the motor connector device can be directly matched with the existing motor stator junction box and the existing compressor wire holder, so that the existing compressor system is improved; meanwhile, corresponding explosion-proof structures can be arranged according to different sizes of the wire holders, so that the wire holder is high in adaptability; simple structure, low manufacturing cost and small installation difficulty.
The above-described embodiment is only one of the embodiments that can implement the technical solution of the present invention, and the scope of the present invention is not limited by the embodiment, but includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed.
Claims (8)
1. A motor joint device for an R290 refrigerant compressor is characterized by comprising a wire holder (1), a motor stator junction box (3) and an explosion-proof structure (5); the explosion-proof structure (5) is arranged between the wire holder (1) and the motor stator junction box (3); the explosion-proof structure (5) comprises an explosion-proof chassis (51) and a fixing ring (52); the explosion-proof chassis (51) is of a circular plate-shaped structure, and the explosion-proof chassis (51) is arranged at the end part of the wire holder (1) and close to one end of the motor stator junction box (3); one side of the explosion-proof chassis (51) is fixed with the wire holder (1) in a sealing way, and the other end of the explosion-proof chassis is fixed with the motor stator junction box (3) in a sealing way; the fixing ring (52) is of a circular ring structure, and the fixing ring (52) is sleeved on the outer side of the wire holder (1); one end of the fixing ring (52) is fixedly connected with the periphery of the explosion-proof chassis (51), and the inner wall of the other end of the fixing ring (52) is fixed with the outer side of the wire holder (1) in a sealing mode.
2. The motor joint device for the R290 refrigerant compressor as claimed in claim 1, wherein the explosion-proof chassis (51) is provided with a plurality of pin through holes (53), and the arrangement positions of the pin through holes (53) are matched with the pin positions on the wire holder (1); the pins on the wire holder (1) are arranged in the pin through holes (53) in a penetrating way.
3. The motor joint device for R290 refrigerant compressor as claimed in claim 2, wherein the pin is hermetically fixed with the pin penetration hole (53).
4. The motor joint device for the R290 refrigerant compressor as claimed in claim 1, wherein an inner diameter of the fixing ring (52) is matched with an outer diameter of the wire holder (1).
5. The motor joint device for the R290 refrigerant compressor as claimed in claim 1, wherein the explosion-proof chassis (51) and the fixing ring (52) are integrally formed.
6. The motor joint device for the R290 refrigerant compressor as claimed in claim 1, wherein the explosion-proof chassis (51) and the fixing ring (52) are both made of engineering plastics.
7. The motor joint device for the R290 refrigerant compressor as claimed in claim 1, wherein the wire holder (1) is fixedly installed on the compressor upper cover (2).
8. The motor joint device for the R290 refrigerant compressor as claimed in claim 1, wherein the terminal of the motor stator junction box (3) is connected with the terminal of the motor stator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123305525.0U CN216625480U (en) | 2021-12-24 | 2021-12-24 | Motor joint device for R290 refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123305525.0U CN216625480U (en) | 2021-12-24 | 2021-12-24 | Motor joint device for R290 refrigerant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216625480U true CN216625480U (en) | 2022-05-27 |
Family
ID=81683550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123305525.0U Active CN216625480U (en) | 2021-12-24 | 2021-12-24 | Motor joint device for R290 refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216625480U (en) |
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2021
- 2021-12-24 CN CN202123305525.0U patent/CN216625480U/en active Active
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