Sealing protection mechanism of compressor junction box

Abstract

The utility model discloses a compressor junction box sealing protection mechanism which comprises a junction box, a compressor and a compressor connecting wire, the junction box comprises a junction box sleeve, a junction box cover, a wire holder, a wire passing hole, a junction box sleeve opening, a blocking rib, a junction box sleeve body, a wiring opening bandage and a junction box bandage, and the junction box sleeve wraps the junction box cover and the wire holder. According to the compressor junction box sealing protection mechanism, the sealing effect on the compressor junction box is better, waterproof, dustproof and air-proof effects can be effectively achieved, and the compressor junction box sealing protection mechanism has the advantages of being good in sealing effect, good in sealing effect, good in sealing effect, good in sealing effect, good in sealing effect, good in sealing effect, good in sealing effect, good in sealing effect and long in service life. The sealing protection mechanism provided by the utility model is simple to operate, one junction box sleeve sealing protection structure can be matched with junction box structures of a plurality of compressors, the applicability is wide, and the investment and use cost is low.

Description

Technical Field

[0001] The utility model belongs to the field of compressors, and in particular relates to a sealing and protective mechanism for a compressor junction box. Background Art

[0002] The use of weakly flammable or flammable refrigerants such as R32 and R290 is increasing in the air conditioning industry. To prevent safety incidents caused by refrigerant leaks and other special circumstances, where these (weakly) flammable refrigerants come into contact with ignitable components, stricter sealing requirements are placed on the compressor terminals used. The compressor body is made of metal and is a sealed cavity, providing excellent sealing properties. However, the wiring module of the compressor's internal circuitry is completely exposed.

[0003] Existing compressor junction boxes primarily consist of a gasket and a cover. During installation, the gasket is an elastomer, resulting in minimal interaction between the gasket and the cover. External force applied during installation of the cover acts indirectly on the gasket through the compressor bolts, causing it to deform under stress. This creates a seal by increasing the interference fit between the gasket and the cover. While this sealing method provides a simple waterproofing effect, it leaves gaps in the junction box, failing to prevent gas from entering. This poses a fire risk in the event of a refrigerant leak. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a compressor terminal box sealing protection mechanism to solve the problem that there is a gap in the compressor terminal box in the existing technology. When refrigerant leakage occurs, it is impossible to prevent the leaked refrigerant from entering the terminal box, which poses a fire risk. At the same time, if the leakage comes from the compressor terminal, the leaked refrigerant can be easily and effectively discharged, greatly improving the reliability and safety of the compressor.

[0005] One embodiment of the present invention provides a compressor junction box sealing and protection mechanism, characterized in that it includes the junction box for protecting the compressor's junction module; the sealing component is used to seal the junction box; the sealing component includes a box body sealing assembly and a terminal sealing assembly, the box body sealing assembly is used to seal the junction box, and the terminal sealing assembly is used to seal the junction box and the junction terminal of the junction module.

[0006] In one embodiment, the box body sealing assembly includes a junction box cover, which is sleeved on the periphery of the junction box, and a junction seat is provided at the bottom of the junction box cover.

[0007] In one embodiment, a stopper is provided on the junction box cover, and a notch is provided on the junction box seat at a position corresponding to the stopper on the junction box cover, and the stopper is filled in the notch.

[0008] In one embodiment, the junction box sleeve is provided with an exhaust port, and the exhaust port is filled with a sealing plug.

[0009] In one embodiment, the junction box cover is further provided with a retaining rib, and a junction box binding band is wrapped around a concave portion of an outer surface of the retaining rib, and the junction box binding band is used to fasten the junction box cover and the junction seat.

[0010] In one embodiment, the terminal sealing assembly includes a wire tube, which is opened on the box body sealing assembly. A wiring port band is wrapped around the outside of the wire tube, and the wiring port band is used to seal and fasten the wire tube and the wiring terminal.

[0011] In one embodiment, a mounting opening is provided at the bottom of the wiring seat, and the mounting opening is used to fix the wiring seat on the compressor.

[0012] In one embodiment, the wiring module includes a compressor connecting wire and a wiring terminal of an internal circuit of the compressor, and the compressor connecting wire is connected to the wiring terminal of the internal circuit of the compressor through the wire tube.

[0013] In one embodiment, a first sealing medium is filled between the compressor connecting line and the wire passing tube, and the first sealing medium is used to seal the gap between the compressor connecting line and the wire passing tube.

[0014] In one embodiment, a second sealing medium is filled between the junction box cover and the wiring seat, and the second sealing medium is used to seal the gap between the junction box cover and the wiring seat.

[0015] The compressor terminal box sealing protection mechanism provided by the above embodiment has the following beneficial effects: The purpose of this patent provided by the utility model is to provide a sealing protection structure for a compressor terminal box, which solves the airtightness problem of the existing compressor terminal box, can not only prevent water from entering the terminal box, but also prevent gas from entering the compressor terminal box, and at the same time considers that refrigerant leakage may come from the compressor itself. For example, the welding body of the compressor terminal is generally a glass structure, and this type of terminal itself may also leak. If leakage occurs, the inside of the sealing protection structure is subjected to the pressure of the overflowing refrigerant, and the sealing plug on the exhaust port on the sealing protection structure is pushed out, effectively opening from the inside to the outside, and allowing the refrigerant gathered near the terminal to be effectively discharged from the inside of the sealing protection structure. This greatly improves the reliability of the compressor and eliminates the fire hazard of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a structural diagram of a compressor junction box in the prior art;

[0018] Figure 2 A schematic structural diagram of a compressor junction box sleeve provided by an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of a partial installation of a junction box cover provided by the first embodiment of the present utility model;

[0020] Figure 4 A schematic diagram of the installation of a compressor junction box sealing protection mechanism provided by the first embodiment of the present utility model;

[0021] Figure 5 A schematic structural diagram of a junction box sleeve provided in a second embodiment of the present utility model;

[0022] Figure 6 This is a schematic structural diagram of a junction box sleeve provided in the third embodiment of the present utility model.

[0023] The accompanying drawings are marked with: 1. compressor; 2. junction box; 3. compressor connecting wire; 201. junction box cover; 202. junction box cover; 203. junction socket; 301. wire hole; 302. junction box cover opening; 303. retaining rib; 304. junction box cover body; 305. block on the junction box cover; 401. junction opening strap; 402. junction box strap; 501. notch; 601. exhaust port; 602. sealing plug. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] refer to Figure 1 In the prior art, a compressor typically includes a compressor body 1 and a junction box 2. Junction box 2 houses a terminal block 203, to which a compressor connecting wire 3 is attached, connecting the compressor to the power supply. The compressor also typically includes a junction box cover 202, which prevents water dripping from above the compressor from entering the junction box. While this prior art effectively prevents external air from entering the junction box, it cannot effectively remove refrigerant if there is a risk of refrigerant leakage within the junction box itself.

[0028] Example 1

[0029] refer to Figure 2-Figure 4 , the optimal embodiment provided in this embodiment includes a compressor junction box sealing protection mechanism, the junction box is used to protect the compressor junction module; the sealing component is used to seal the junction box;

[0030] The sealing components include a box body sealing assembly and a terminal sealing assembly. The box body sealing assembly is used to seal the junction box, while the terminal sealing assembly is used to seal the junction box and the terminal of the junction module. The box body sealing assembly includes a junction box cover 202, which is fitted around the periphery of the junction box 2. A terminal seat 203 is provided at the bottom of the junction box cover 202. A stopper 305 is provided on the junction box cover 202, and a notch 501 is provided on the junction box seat 203 at a position corresponding to the stopper 305. The stopper 305 fills the notch 501.

[0031] The compressor terminal box sealing and protection mechanism adds a terminal box cover 201 to the existing terminal box. The terminal box cover 201 encloses the terminal box cover 202 and the terminal block 203. The terminal box cover opening 302 on the terminal box cover 201 is placed on the terminal block 203. The terminal box strap 402 is then tied to the terminal box cover 201, and the strap ensures that the terminal box cover opening 302 is tightly attached to the terminal block 203, thereby achieving a sealing effect. The terminal box cover 201 is used to cover and seal the components of the terminal box cover 202 and the terminal block 203. Its main function is to ensure that these components remain dry, dustproof, and sealed during use, thereby improving the durability and reliability of the equipment. The terminal box cover 201 is made of a soft material such as rubber, which can provide good sealing performance. A hard material can also be used as a supporting structure. At the same time, soft materials are used in key areas, such as the wire hole 301 and the terminal box cover opening 302 on the terminal box cover 201, to enhance the sealing performance.

[0032] Preferably, the wiring module includes a compressor connecting wire and a wiring terminal of the compressor internal circuit, and the compressor connecting wire is connected to the wiring terminal of the compressor internal circuit through the wire tube. A first sealing medium is filled between the compressor connecting wire and the wire tube, and the first sealing medium is used to seal the gap between the compressor connecting wire and the wire tube. A second sealing medium is filled between the junction box sleeve and the wiring seat, and the second sealing medium is used to seal the gap between the junction box sleeve and the wiring seat. In some embodiments, the first sealing medium can be a sealing material such as sealing glue, and the wire tube is rubber; in this solution, the wire tube is configured to be rubber and can cooperate with a strap to increase the degree of tightness and airtightness.

[0033] The first sealing medium filled between the wire passing pipe and the compressor connecting wire is sealing glue. In this solution, filling the sealing glue can increase the tightness and sealing of the junction box sleeve.

[0034] In this solution, the second sealing medium is sealing glue, and filling the sealing glue can increase the tightness and airtightness of the junction box sleeve.

[0035] The compressor connecting line 3 is connected to the terminal block 203 through the wire hole 301 on the terminal box cover 201, and then the terminal port strap 401 is tied to the wire hole 301 so that the wire hole 301 is tightly attached to the compressor connecting line 3, thereby achieving a sealing effect; the terminal box sleeve 302 on the terminal box cover 201 is fastened with the terminal box strap 402 so that it is tightly attached to the terminal block 203, forming a physical seal. Filling the space between the terminal box sleeve 302 and the terminal block 203 with materials such as sealing glue can enhance the sealing effect, especially when the sealing tape may be compressed, deformed, or aged. In some embodiments, the sealing mechanism combines the strap 402 and the sealing glue to provide a double seal to further prevent the intrusion of moisture and gas.

[0036] The junction box cover 201 is made of a soft material such as rubber for easier sealing. Alternatively, the junction box cover body 304 can be designed with a hard material, while the wire hole 301 and the junction box cover opening 302 are designed with a soft material. This allows the junction box cover 201 to better seal against the compressor connecting cable 3 and the terminal block 203. A wire hole binding tape 401 is used to secure the wire hole 301 to the compressor connecting cable 3, preventing gas leakage between the wire hole 301 and the connecting cable 3. Sealant or other material is then filled between the wire hole 301 and the connecting cable 3 to enhance the sealing effect. In some embodiments, the sealing performance is further improved by combining the binding tape 401 with the sealant.

[0037] The junction box sleeve 302 and the wiring seat 203 are in interference fit, and the junction box sleeve 302 can be sealed with the wiring seat 203 by shrinking.

[0038] The junction box sleeve 302 and the terminal block 203 can be tightly bound together by the junction box binding tape 402 to achieve a sealing effect; or a sealing material such as sealing glue is filled between the junction box sleeve 302 and the terminal block 203 to achieve a sealing effect; or the junction box sleeve 302 and the terminal block 203 are tightly bound together by the junction box binding tape 402, and a sealing material such as sealing glue is filled between the junction box sleeve 302 and the terminal block 203 to further achieve a sealing effect.

[0039] Junction box cover 201 is provided with retaining ribs 303, which serve to limit the position of junction box strap 402 and prevent it from falling off during operation. The retaining ribs 303 on junction box cover 201 primarily prevent the junction box strap 402 from slipping or loosening during operation. This is achieved by providing a fixed position for the strap, ensuring a long-lasting and stable sealing effect.

[0040] The wire hole 301 and the compressor connecting line 3 are tightly bound by the wiring port bandage 401, so that gas cannot pass through between the wire hole 301 and the compressor connecting line 3, thereby achieving a sealing effect; or sealing materials such as sealing glue are filled between the wire hole 301 and the compressor connecting line 3 to achieve a sealing effect. In some embodiments, when using sealing glue, different types of sealants (such as silicone, polyurethane) can be selected to adapt to different working environments and requirements. Sealing glue can fill tiny gaps to a certain extent and further enhance the sealing. If allowed in the design, the use of special sealing tape (such as self-adhesive sealing tape) can be considered to simplify the installation and sealing process. Through the above structure and sealing method, this new junction box design provides an efficient sealing solution to ensure that the junction box can effectively prevent the intrusion of moisture and gas under various working environments. The advantage of this design is its multiple sealing mechanism, and the sealing reliability is further enhanced through the design of the block.

[0041] The wire hole 301 and the compressor connecting line 3 are tightly tied together by the wiring port strap 401, so that gas cannot pass between the wire hole 301 and the compressor connecting line 3, thereby achieving a sealing effect. At the same time, sealing materials such as glue are filled between the wire hole 301 and the compressor connecting line 3 to further achieve a sealing effect.

[0042] Example 2

[0043] refer to Figure 5 A window-type exhaust port 601 is added to the junction box cover 201. Under normal sealing conditions, the window-type sealing plug 602 on the junction box cover blocks the exhaust port 601, so that the inside of the junction box cover 201 is sealed. When gas leakage occurs in the junction box 2, the high-pressure gas pushes the plug 602 out of the window-type exhaust port 601, allowing the internal high-pressure gas to discharge from the junction box 2.

[0044] The stopper is a soft material, specifically rubber, and the terminal block is installed at the bottom of the terminal box through the rubber stopper; in this solution, the stopper is set to rubber, and when a leak occurs, the high-pressure gas will push the stopper out and be discharged from the gap to avoid excessive internal air pressure.

[0045] Preferably, a windowed card structure is provided at a certain position on the side wall of the junction box sleeve 201, and after the junction box sleeve 201 is sleeved on the junction box cover, the sealing plug 602 is clamped on the exhaust port 601 of the windowed card structure. The windowed card structure can effectively ensure that once the refrigerant leakage comes from the compressor itself, such as leakage at the terminal of the compressor itself (although the probability is extremely low), the sealing protection structure is subjected to the pressure of the overflowed refrigerant in the closed area. Through this windowed card structure (including the sealing plug 602), it can be effectively opened from the inside to the outside, and the refrigerant gathered near the terminal can be effectively discharged from the inside of the junction box sleeve 201. At the same time, the structure can effectively prevent the refrigerant in the external pipeline of the compressor from contacting the terminal of the compressor due to leakage, thereby achieving a more complete protection effect.

[0046] Example 3

[0047] refer to Figure 6 The junction box sleeve 201 is provided with a block, and the junction box seat 203 is provided with a notch 501 at a position corresponding to the block 305 on the junction box sleeve, and the block 305 is filled in the notch 501. , so that the junction box 2 is in a sealed state. If refrigerant leakage occurs inside the junction box 2, the high-pressure refrigerant will squeeze the block 305 out of the notch 501, so that the high-pressure refrigerant cannot accumulate in the junction box. The sealing plug 602 is made of rubber. When a leak occurs, the high-pressure refrigerant will push the sealing plug 602 out and be discharged from the notch, so that the high-pressure refrigerant cannot accumulate in the junction box. The main function of the retaining rib 303 provided on the junction box sleeve 201 of this embodiment is to prevent the junction box strap 402 from slipping or loosening during the operation of the equipment. This is achieved by providing a limit position for the strap to ensure a long-lasting and stable sealing effect.

[0048] The utility model provides a compressor terminal box sealing and protection mechanism. This compressor terminal box sealing and protection mechanism utilizes a terminal box strap to secure the terminal box sleeve to the terminal socket, ensuring a tight seal. This terminal box sealing mechanism design not only improves the safety of the device, but also ensures its normal operation under various environmental conditions. By optimizing the structural design, selecting suitable materials, improving the sealing performance, and strengthening maintenance, the service life and reliability of the terminal box can be significantly improved. The sealing effect of the compressor terminal box is better, and it can effectively prevent water, dust, and air. The sealing and protection mechanism provided by the utility model is simple to operate. Generally, one terminal box sleeve structure can match the terminal box structures of multiple compressors. It has wide applicability and low investment and use costs.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A compressor junction box sealing and protection mechanism, characterized in that: include The junction box is used to protect the wiring module of the compressor; The sealing component is used to seal the junction box; The sealing component includes a box body sealing assembly and a terminal sealing assembly. The box body sealing assembly is used to seal the junction box, and the terminal sealing assembly is used to seal the junction box and the connection terminals of the junction module.

2. The compressor terminal box sealing and protection mechanism according to claim 1, characterized in that: The box body sealing assembly comprises a junction box sleeve, which is sleeved on the periphery of the junction box, and a junction seat is provided at the bottom of the junction box sleeve.

3. The compressor terminal box sealing and protection mechanism according to claim 2, characterized in that: The junction box cover is provided with a stopper, and the junction box seat is provided with a notch at a position corresponding to the stopper on the junction box cover, and the stopper is filled in the notch.

4. The compressor terminal box sealing and protection mechanism according to claim 2, characterized in that: An exhaust port is provided on the junction box sleeve, and a sealing plug is filled in the exhaust port.

5. The compressor terminal box sealing and protection mechanism according to claim 3 or 4, characterized in that: The junction box cover is further provided with a retaining rib, and a junction box binding band is wound around the concave portion of the outer surface of the retaining rib, and the junction box binding band is used to fasten the junction box cover and the junction seat.

6. The compressor terminal box sealing and protection mechanism according to claim 1, characterized in that: The terminal sealing assembly includes a wire tube, which is opened on the box body sealing assembly. A wiring port binding band is wrapped around the outside of the wire tube, and the wiring port binding band is used to seal and fasten the wire tube and the wiring terminal.

7. The compressor terminal box sealing and protection mechanism according to claim 2, characterized in that: A mounting opening is provided at the bottom of the wiring seat, and the mounting opening is used to fix the wiring seat on the compressor.

8. The compressor terminal box sealing and protection mechanism according to claim 1, wherein: The wiring module includes a compressor connecting line and a wiring terminal of an internal circuit of the compressor. The compressor connecting line is connected to the wiring terminal of the internal circuit of the compressor through the wire tube.

9. The compressor terminal box sealing and protection mechanism according to claim 8, characterized in that: A first sealing medium is filled between the compressor connecting line and the wire passing pipe, and the first sealing medium is used to seal the gap between the compressor connecting line and the wire passing pipe.

10. The compressor terminal box sealing and protection mechanism according to claim 2, characterized in that: A second sealing medium is filled between the junction box cover and the wiring seat, and the second sealing medium is used to seal the gap between the junction box cover and the wiring seat.

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