Waterproof structure for compressor and compressor
By adopting a waterproof structure with a wiring harness joint and joint body on the upper housing cover of the compressor, the problem of waterproof structure occupying large planes in the prior art is solved, the waterproofing requirement for micro compressors is achieved, and the structure is simplified to reduce costs.
Patent Information
- Application Number
- CN202420596645.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The waterproof structure of the upper housing cover of the existing compressor occupies a large plane, which is difficult to meet the needs of micro compressors, and poses challenges to resistance to water pressure and pressure pulsation.
A waterproof structure including a wiring harness joint and a joint body is adopted. By sealing the joint body with a sealed terminal, the junction box cover and screw nut structure are eliminated, and the occupancy of the upper housing cover of the compressor is reduced.
It significantly reduces the use of large planes of the compressor upper case cover, saves available space, simplifies the waterproof structure, improves installation speed and factory efficiency, and reduces costs.
Smart Images
Figure CN222457701U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, in particular to a waterproof structure for compressors and a compressor comprising the waterproof structure for compressors. Background Art
[0002] At present, the design of the compressor upper shell cover waterproof structure mostly adopts a double screw or double nut structure, such as Figure 1 As shown, one end of the PG connector 11 is tightly connected to the harness connector 12, and the other end of the PG connector 11 is provided with an external thread, which is matched and connected with the internal thread provided on the junction box cover 13. The junction box cover 13 is tightly pressed on the compressor upper shell cover 15 by the screw, nut and gasket 14. The cable harness 10 passes through the harness connector 12 and the PG connector 11 in sequence to the junction box cover 13 and is electrically connected to the sealing terminal 16 on the compressor upper shell cover 15, thereby achieving the purpose of waterproofing the compressor upper shell cover 15. This waterproof structure greatly occupies the large plane of the compressor upper shell cover 15, poses a challenge to the water pressure resistance and pressure pulsation of the compressor, and can only be applied to the compressor upper shell cover 15 with a larger shell diameter, which cannot meet the needs of micro compressors, and micro compressors will become more and more a trend as the cost decreases. Utility Model Content
[0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a waterproof structure for a compressor, which can reduce the occupation of a large surface area of an upper shell cover of the compressor.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] The utility model provides a waterproof structure for a compressor, comprising a wiring harness connector and a connector body which are both axially penetrated inside, the inner diameter of one end of the wiring harness connector is adapted to the outer diameter of the cable harness, and the other end is sealed and connected to one end of the connector body, the other end of the connector body is sealed and connected to a sealing terminal on an upper shell cover of the compressor, and the cable harness passes through the wiring harness connector and the connector body in sequence and is electrically connected to the sealing terminal.
[0006] Preferably, the connector body and the sealed terminal are sealed and connected via a threaded fitting structure.
[0007] Preferably, the sealing terminal has a first external thread at one end located outside the compressor upper shell cover, and the joint body has a first internal thread at one end connected to the sealing terminal, and the first internal thread is matched and connected with the first external thread.
[0008] Preferably, a reserved hole for the sealing terminal to pass through is provided on the upper shell cover of the compressor, and the outer diameter of the first external thread on the sealing terminal is smaller than the diameter of the reserved hole.
[0009] Preferably, it also includes a sealing ring, which is sleeved on the sealing terminal and is pressed against the upper shell cover of the compressor by the joint body.
[0010] Preferably, the connector body and the wiring harness connector are sealed and connected via a threaded fitting structure.
[0011] Preferably, one end of the connector body connected to the wiring harness connector is provided with a second external thread, and one end of the wiring harness connector connected to the connector body is provided with a second internal thread, and the second internal thread is matched and connected with the second external thread.
[0012] Preferably, one end of the connector body connected to the wiring harness connector is divided into a plurality of sections that can be tightened along the circumferential direction, and the connector body is sealingly connected to the wiring harness connector and tightens the plurality of sections.
[0013] Preferably, the end of the wiring harness connector away from the connector body is in a tapered shape with a gradually decreasing diameter.
[0014] The utility model also provides a compressor, comprising the waterproof structure for the compressor as described above.
[0015] Compared with the prior art, the present invention has significant improvements:
[0016] The utility model compressor waterproof structure is achieved by sealing the two ends of the connector body with the wiring harness connector and the sealing terminal respectively to achieve the purpose of waterproofing. By directly sealing the connector body that penetrates the inside with the sealing terminal on the compressor upper shell cover, the junction box cover and the screw nut structure that tightly presses the junction box cover with the compressor upper shell cover are omitted, which significantly reduces the occupation of the large plane of the compressor upper shell cover, saves the available space of the large plane of the compressor upper shell cover, and is conducive to the configuration of the space of the compressor upper shell cover, thereby providing a feasible solution for the waterproof structure of the micro compressor; at the same time, it also greatly simplifies the waterproof structure, making the waterproof structure more concise, easier to assemble, and can improve the installation speed, improve the factory efficiency, save labor costs, and has the advantages of less accessories, less materials, and low cost; and the requirements for the flatness of the large plane of the compressor upper shell cover are low, and waterproofing can be achieved while maintaining the original compressor upper shell cover cavity, reducing the impact on water pressure resistance and pressure pulsation. In practical applications, the utility model compressor waterproof structure can be directly used to replace the original sealing terminal end cover for delivery, saving the cost of the sealing terminal end cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The utility model is a schematic diagram of the assembly of the waterproof structure of the compressor upper shell cover in the prior art.
[0018] Figure 2 It is a schematic diagram of the assembly of the waterproof structure for a compressor according to an embodiment of the utility model.
[0019] Figure 3 It is a structural schematic diagram of a sealed terminal in a waterproof structure for a compressor according to an embodiment of the utility model.
[0020] Figure 4 It is a cross-sectional schematic diagram of a joint body in the waterproof structure for a compressor according to an embodiment of the utility model.
[0021] Figure 5 It is a top view schematic diagram of a joint body in the waterproof structure for a compressor according to an embodiment of the utility model.
[0022] Figure 6 It is a structural schematic diagram of a sealing ring in a waterproof structure for a compressor according to an embodiment of the utility model.
[0023] Figure 7 It is a cross-sectional schematic diagram of a wiring harness connector in a waterproof structure for a compressor according to an embodiment of the utility model.
[0024] The reference numerals are described as follows:
[0025] 10 Cable Harness
[0026] 11 PG connector
[0027] 12 Wiring harness connector
[0028] 13 Junction box cover
[0029] 14 Gasket
[0030] 15 Compressor upper cover
[0031] 16 Sealed Terminals
[0032] 21 Wire harness connector
[0033] 211 Second internal thread
[0034] 212 Conical section
[0035] 213 Column segment
[0036] 22 Connector body
[0037] 221 First internal thread
[0038] 222 Second external thread
[0039] 223 Slice
[0040] 23 Compressor upper cover
[0041] 231 Reserved hole
[0042] 24 Sealed Terminals
[0043] 241 First external thread
[0044] 25 Sealing ring DETAILED DESCRIPTION
[0045] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.
[0046] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0048] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.
[0049] like Figures 2 to 7 The figure shows an embodiment of the waterproof structure for a compressor provided by the utility model.
[0050] See also Figure 2The waterproof structure for the compressor of this embodiment includes a harness connector 21 and a connector body 22. The interior of the harness connector 21 and the connector body 22 are both axially penetrated, and the cable harness 10 can pass through. Multiple cables are wrapped by a harness protective sleeve (usually a rubber sleeve) to form a cable harness 10, and the outer diameter of the cable harness 10 is the outer diameter of the harness protective sleeve. The inner diameter of one end of the harness connector 21 is adapted to the outer diameter of the cable harness 10, so that the harness protective sleeve of the cable harness 10 passing through this end of the harness connector 21 fits with the harness connector 21. The other end of the harness connector 21 is sealedly connected to one end of the connector body 22, and the other end of the connector body 22 is sealedly connected to the sealing terminal 24 on the compressor upper shell cover 23. The cable harness 10 passes through the harness connector 21 and the connector body 22 in sequence and is electrically connected to the sealing terminal 24.
[0051] The compressor waterproof structure of the present embodiment achieves the purpose of waterproofing by sealingly connecting the two ends of the connector body 22 with the wiring harness connector 21 and the sealing terminal 24 respectively. By directly sealingly connecting the connector body 22 that penetrates the inside with the sealing terminal 24 on the compressor upper shell cover 23, the junction box cover and the screw and nut structure that tightly presses the junction box cover and the compressor upper shell cover are omitted, which significantly reduces the occupation of the large plane of the compressor upper shell cover 23, saves the available space of the large plane of the compressor upper shell cover 23, and is conducive to the configuration of the space of the compressor upper shell cover 23, thereby providing a feasible solution for the waterproof structure of the micro compressor; at the same time, it also greatly simplifies the waterproof structure, making the waterproof structure more concise and easier to assemble, which can increase the installation speed, improve factory efficiency, save labor costs, and has the advantages of fewer accessories, less materials, and low cost; and the requirements for the flatness of the large plane of the compressor upper shell cover 23 are low, which can achieve waterproofing while maintaining the original cavity of the compressor upper shell cover 23, reducing the impact on water pressure resistance and pressure pulsation. In practical applications, the compressor waterproof structure of this embodiment can be directly used to replace the original sealed terminal end cover for delivery, saving the cost of the sealed terminal end cover.
[0052] In a preferred embodiment, the connector body 22 and the sealing terminal 24 are sealed and connected via a threaded fitting structure, which has the advantages of easy assembly and good connection tightness.
[0053] Preferably, see Figure 2 , Figure 3 and Figure 4 The sealing terminal 24 is provided with a first external thread 241 at one end located on the outside of the compressor upper shell cover 23, and a first internal thread 221 is provided at one end of the joint body 22 connected to the sealing terminal 24. The first internal thread 221 and the first external thread 241 are matched and connected, that is, the joint body 22 and the sealing terminal 24 are sealed and connected through the first internal thread 221 and the first external thread 241 to achieve the purpose of waterproofing.
[0054] In this embodiment, a reserved hole 231 is provided on the compressor upper shell cover 23 for the sealing terminal 24 to pass through. During assembly, one end of the sealing terminal 24 connected to the joint body 22 (also the end of the sealing terminal 24 provided with the first external thread 241) extends from the inner side of the compressor upper shell cover 23 through the reserved hole 231 to the outer side of the compressor upper shell cover 23, and the other end of the sealing terminal 24 is press-welded to the compressor upper shell cover 23 outwardly on the inner side of the compressor upper shell cover 23. In order to ensure that the end of the sealing terminal 24 provided with the first external thread 241 can pass through the reserved hole 231 on the compressor upper shell cover 23, preferably, the outer diameter of the first external thread 241 on the sealing terminal 24 is smaller than the diameter of the reserved hole 231 on the compressor upper shell cover 23.
[0055] For further information, see Figure 2 and Figure 6 The compressor waterproof structure of this embodiment also includes a sealing ring 25, which is sleeved on one end of the sealing terminal 24 located outside the compressor upper shell cover 23, and is pressed against the compressor upper shell cover 23 by the joint body 22 to ensure the connection sealing between the joint body 22 and the sealing terminal 24. In this embodiment, the sealing ring 25 and the end of the joint body 22 with the first internal thread 221 are both sleeved on the outer peripheral surface of the end of the sealing terminal 24 with the first external thread 241. By tightening the first internal thread 221 of the joint body 22 and matching the first external thread 241 of the sealing terminal 24, the joint body 22 presses the sealing ring 25 against the compressor upper shell cover 23. In order to facilitate the sleeve of the sealing ring 25 and ensure the sealing effect at the same time, it is preferred that the inner diameter of the sealing ring 25 is adapted to the outer diameter of the first external thread 241 on the sealing terminal 24.
[0056] In a preferred embodiment, the connector body 22 and the wiring harness connector 21 are sealed and connected via a threaded fitting structure, which has the advantages of easy assembly and good connection tightness.
[0057] Preferably, see Figure 2 , Figure 4 and Figure 7 A second external thread 222 is provided at one end of the connector body 22 connected to the wiring harness connector 21, and a second internal thread 211 is provided at one end of the wiring harness connector 21 connected to the connector body 22. The second internal thread 211 and the second external thread 222 are matched and connected, that is, the wiring harness connector 21 and the connector body 22 are sealed and connected by the second internal thread 211 and the second external thread 222 to achieve the purpose of waterproofing.
[0058] Preferably, see Figure 5The end of the connector body 22 connected to the harness connector 21 is divided into a plurality of tightenable slices 223 along the circumferential direction, and the connector body 22 is sealed and connected to the harness connector 21 and tightens the plurality of slices 223. In this embodiment, the end of the connector body 22 connected to the harness connector 21 is in the shape of a slice that can be tightened, and has a second external thread 222. When the second external thread 222 is matched and connected with the second internal thread 211 on the harness connector 21, the end of the connector body 22 in the shape of a slice is tightened, so as to achieve the purpose of waterproofing and tighten the cable harness 10 at the same time.
[0059] In this embodiment, both ends of the connector body 22 are sealedly connected to the wiring harness connector 21 and the sealing terminal 24 through a threaded matching structure, so that all components of the compressor waterproof structure of this embodiment are matched by tightening the threads, and the installation is very simple and convenient, which can ensure the installation speed and assembly efficiency.
[0060] See also Figure 7 In this embodiment, preferably, the end of the harness connector 21 away from the connector body 22 is in a tapered shape with a gradually decreasing diameter, so that the harness connector 21 is a truncated cone structure. Preferably, the harness connector 21 includes a tapered section 212 and a cylindrical section 213 that are connected, and a second internal thread 211 is provided on the inner circumference of the cylindrical section 213 for mating with the second external thread 222 of the connector body 22. The diameter of the tapered section 212 gradually decreases to a minimum inner diameter in a direction away from the cylindrical section 213, and the minimum inner diameter is adapted to the outer diameter of the cable harness 10, so that the end of the tapered section 212 away from the cylindrical section 213 fits with the harness protective cover of the cable harness 10.
[0061] Based on the above-mentioned waterproof structure for a compressor, an embodiment of the utility model further provides a compressor. The compressor of this embodiment includes the above-mentioned waterproof structure for a compressor of this embodiment.
[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A waterproof structure for a compressor, characterized in that: The invention comprises a harness connector (21) and a connector body (22) both of which are axially penetrated inside. The inner diameter of one end of the harness connector (21) is adapted to the outer diameter of the cable harness, and the other end is sealedly connected to one end of the connector body (22). The other end of the connector body (22) is sealedly connected to a sealing terminal (24) on an upper shell cover (23) of a compressor. The cable harness passes through the harness connector (21) and the connector body (22) in sequence and is electrically connected to the sealing terminal (24). The end of the connector body (22) connected to the harness connector (21) is circumferentially divided into a plurality of sections (223) that can be tightened. The connector body (22) is sealedly connected to the harness connector (21) and tightens the plurality of sections (223).
2. The waterproof structure for a compressor according to claim 1, characterized in that: The connector body (22) and the sealed terminal (24) are sealed and connected via a threaded fitting structure.
3. The waterproof structure for a compressor according to claim 2, characterized in that: The sealing terminal (24) is provided with a first external thread (241) at one end located on the outside of the compressor upper shell cover (23), and the joint body (22) is provided with a first internal thread (221) at one end connected to the sealing terminal (24), and the first internal thread (221) is matched and connected with the first external thread (241).
4. The waterproof structure for a compressor according to claim 3, characterized in that: The compressor upper shell cover (23) is provided with a reserved hole (231) for the sealing terminal (24) to pass through, and the outer diameter of the first external thread (241) on the sealing terminal (24) is smaller than the diameter of the reserved hole (231).
5. The waterproof structure for a compressor according to any one of claims 1 to 4, characterized in that: It also comprises a sealing ring (25), which is sleeved on the sealing terminal (24) and is pressed tightly onto the compressor upper shell cover (23) by the joint body (22).
6. The waterproof structure for a compressor according to claim 1, characterized in that: The connector body (22) and the wiring harness connector (21) are sealed and connected via a threaded fitting structure.
7. The waterproof structure for a compressor according to claim 6, characterized in that: The end of the connector body (22) connected to the wiring harness connector (21) is provided with a second external thread (222), and the end of the wiring harness connector (21) connected to the connector body (22) is provided with a second internal thread (211), and the second internal thread (211) is matched and connected with the second external thread (222).
8. The waterproof structure for a compressor according to claim 1, characterized in that: One end of the wiring harness connector (21) away from the connector body (22) is in a tapered shape with a gradually decreasing diameter.
9. A compressor, characterized in that: The waterproof structure for a compressor comprises the waterproof structure for a compressor as claimed in any one of claims 1 to 8.