Three-phase insert applied to compressor

Abstract

The three-phase insert applied to the compressor comprises an upper shell, a terminal assembly and a lower shell, the upper shell covers the lower shell, the upper shell is provided with a first through hole, the lower shell is provided with an installation cavity communicated with the first through hole, and the terminal assembly is arranged in the installation cavity. The terminal assembly is arranged in the installation cavity, one end of the terminal assembly extends out of the first through hole of the upper shell, the two ends of the upper shell are each provided with a first clamping piece, the two ends of the lower shell are each provided with a second clamping piece, and the first clamping pieces and the second clamping pieces are correspondingly arranged and connected in a buckled mode. Compared with a three-phase insert of a traditional design, the three-phase insert has the advantages that the structure is simplified, the size is smaller, the cost is saved, the upper shell and the lower shell are connected in a buckling mode, the number of product parts is reduced, use is convenient, and the reliability and safety of connection are improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the technical field of compressor, especially a three-phase insert for compressor application. BACKGROUND

[0002] The air conditioner compressor is the core component of the air conditioning system, and its main function is to compress the low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gas, thereby realizing the effect of refrigeration or heating. With the popularity of electric vehicles and high-efficiency air conditioning systems, the design and technical requirements of the compressor are becoming higher and higher. The three-phase insert is mainly used to connect the motor and the driving system of the compressor in the compressor, to ensure the stable transmission of current. Its design needs to consider electrical insulation, thermal management, mechanical strength and other requirements to improve the reliability and safety of the system. In recent years, with the increasing strictness of environmental protection regulations and the improvement of energy efficiency requirements, the compressor technology is also constantly progressing. For example, the three-phase insert using new materials and design can effectively reduce energy consumption and improve the overall efficiency of the compressor. In addition, integrated design and modular production have become an important trend in the industry.

[0003] At present, the three-phase current insert has a large volume, and the position of the pin is difficult to adjust during late installation, which cannot meet the welding needs of different PCB boards. At the same time, a large amount of equipment and cost needs to be invested during production, which cannot meet the needs. UTILITY MODEL CONTENT

[0004] The utility model provides a three-phase insert for compressor application to solve the technical problems in the above background art.

[0005] The utility model provides a three-phase insert for compressor application, including upper shell, terminal assembly and lower shell, the upper shell cover is located on the lower shell, the upper shell is equipped with first through -hole, the lower shell is equipped with installation cavity with first through -hole intercommunication, the terminal assembly is located in the installation cavity and one end is from first through -hole of the upper shell stretches out, both ends of the upper shell are provided with first clamping piece, both ends of the lower shell are provided with second clamping piece, first clamping piece with second clamping piece correspond setting and buckle connection.

[0006] Further, the first clamping piece includes a buckle part extending from one end of the upper shell and having a second through hole, and the second clamping piece includes a first protruding part provided at one end of the lower shell, and the first protruding part is adaptively connected with the second through hole of the buckle part.

[0007] Further, the first clamping piece includes a clamping hook provided at the other end of the upper shell, and the second clamping piece includes a third through hole provided at the bottom of the lower shell, and the clamping hook extends towards the lower shell and buckles into the third through hole of the lower shell.

[0008] Further, the terminal assembly includes three groups, each of the terminal assembly includes a contact terminal and a pin, one end of the pin is riveted or welded with the contact terminal, and the other end extends from the first through hole.

[0009] Further, the three-phase insert has a larger area at one end than at the other end, and the contact terminal is arranged at the larger end of the three-phase insert.

[0010] Further, the three groups of terminal assemblies are spaced apart along the width direction of the lower shell, and the lengths of the pins increase in turn.

[0011] Further, the lower shell is provided with a plurality of partitions, and the plurality of partitions divide the mounting cavity into at least three sub-cavities, and each of the sub-cavities is provided with one of the terminal assemblies.

[0012] Further, the three sub-cavities have different volumes, and the volumes of the sub-cavities increase in turn along the width direction of the lower shell.

[0013] Further, the lower shell is provided with a plurality of second protrusions, and each of the second protrusions is provided with a metal bushing.

[0014] Further, the metal bushing has an open ring structure.

[0015] The above technical scheme has at least the following advantages: compared with the traditional design of the three-phase insert, the structure is simplified, the volume is smaller, the cost is saved, the upper shell and the lower shell are connected in a buckling manner, the number of product parts is reduced, use is facilitated, and the reliability and safety of the connection are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an exploded structural schematic view of the three-phase insert applied to the compressor of the utility model.

[0017] Figure 2 It is a structural schematic view of the upper shell of the utility model.

[0018] Figure 3 It is a structural schematic view of the lower shell of the utility model. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail below by specific implementation manners combined with the drawings. It should be understood that the embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model, and in the case of no conflict, the features in the embodiments in the utility model can be combined with each other.

[0020] like Figures 1-3 As shown, this utility model provides a three-phase insert for compressor applications, including an upper housing 1, a terminal assembly, and a lower housing 3. The upper housing 1 covers the lower housing 3 and has a first through hole 11. The lower housing 3 has a mounting cavity 31 communicating with the first through hole 11. The terminal assembly is disposed in the mounting cavity 31, with one end extending from the first through hole 11 of the upper housing 1. First snap-fit ​​members 12 are provided at both ends of the upper housing 1, and second snap-fit ​​members 32 are provided at both ends of the lower housing 3. The first snap-fit ​​members 12 and second snap-fit ​​members 32 are correspondingly provided and fastened together. The upper housing 1 and the lower housing have suitable shapes, such as square, circular, or polygonal shapes. Combined with the structure of the terminal assembly, a combination of wedge and rectangle shape is preferred. Compared to traditional three-phase insert designs, this simplifies the structure, reduces volume, and saves costs, while maintaining the support and protection functions for the terminal assembly in traditional designs. Furthermore, by connecting the upper and lower housings using a snap-fit ​​method, the number of product parts is reduced, making it easier to use and improving the reliability and safety of the connection.

[0021] In one specific embodiment, the first snap-fit ​​member 12 includes a fastening portion 121 extending from one end of the upper housing 1 and having a second through hole 1211. The second snap-fit ​​member 32 includes a first protrusion 321 disposed at one end of the lower housing 3, the first protrusion 321 being adapted to and connected with the second through hole 1211 of the fastening portion 121. The fastening portion 121 extends from the upper housing 1 to the lower housing 3 along the thickness direction. The first protrusion 321 is disposed at a position on the lower housing 3 corresponding to the position of the fastening portion 121. The first protrusion 321 is installed at any position in the thickness direction of the lower housing 3, preferably above the side wall of the lower housing. The first protrusion 321 is a wedge shape with a thicker bottom and a thinner top adapted to the second through hole 1211, so as to realize the fastening and fixing of the upper housing 1 and the lower housing 3.

[0022] In an alternative embodiment, for ease of processing, the fastening part 121 and the upper housing 1 are preferably integrally formed.

[0023] In an optional embodiment, to improve the fixing force of the upper housing 1 and the lower housing 3, the first snap-fit ​​member 12 may be provided in multiple ways. For example, four fastening parts 121 are provided, and the four fastening parts 121 are distributed at intervals on each side wall of one end of the upper housing 1. The first protrusion 321 is also provided corresponding to the fastening parts 121.

[0024] In an optional embodiment, the upper housing 1 can also be configured as a protrusion 321, and the lower housing 3 can also be configured as a fastening part 1, as long as the two can be fastened and fixed.

[0025] In one specific embodiment, to increase the fixing strength of the upper housing 1 and the lower housing 3, such as... Figure 2 and Figure 3The first snap-fit ​​component 12 includes a hook 122 disposed at the other end of the upper housing 1, and the second snap-fit ​​component 32 includes a third through hole 322 formed at the bottom of the lower housing 3. The hook 122 extends toward the lower housing 3 and engages with the third through hole 322 of the lower housing 3. By engaging the hook 122 with the third through hole 322, the other ends of the upper housing 1 and the lower housing 3 can be flexibly fixed. Through the two sets of snap-fit ​​structures, the connection between the upper housing 1 and the lower housing 3 is secured. Compared with welding fixation, this method is more flexible and improves replaceability.

[0026] In an optional embodiment, the upper housing 1 can also be configured as a third through hole 322, and the lower housing 3 can also be configured as a hook 122, as long as the two can be fastened together.

[0027] In one alternative embodiment, such as Figure 1 As shown, the terminal assembly comprises three sets. Each set includes a contact terminal 21 and a pin 22. One end of the pin 22 is riveted or soldered to the contact terminal 21, and the other end extends from the first through hole 11. By installing the terminal assembly in the lower housing 3, the overall size of the product is reduced compared to the conventional method. Furthermore, the contact terminal 21 and the pin 22 are connected into an integral assembly through processes such as riveting or soldering. The contact terminal 21 is provided with a contact spring that contacts the corresponding pin to achieve conductivity. The pin 22 is soldered to the PCB board in the device to achieve current conduction, thereby connecting the drive system of the motor and the compressor and ensuring stable current transmission.

[0028] In one specific embodiment, to optimize the internal layout, the area of ​​one end of the three-phase insert is larger than that of the other end, and the contact terminal is located at the end of the three-phase insert with the larger area. One end of the pin 22 is bent in the width direction of the lower housing 3, and the other end is bent in the thickness direction of the lower housing 3. To facilitate the connection between the contact terminal 21 and the pin, the three contact terminals 21 are distributed at intervals, and preferably, the three contact terminals 21 are distributed in a fan shape with the bend of the pin 22 near the contact terminal 21 as the center.

[0029] In one specific embodiment, to ensure stable current transmission and meet the application requirements of different PCB boards, three sets of terminal assemblies are spaced apart along the width direction of the lower housing 3, and the length of the pins increases sequentially, thereby meeting the layout requirements of different PCB boards. The pins 22 that are in contact with the PCB and soldered are relatively easy to adjust in position.

[0030] In one specific embodiment, such as Figure 3As shown, the lower shell 3 is provided with a plurality of partitions 33, which divide the mounting cavity 31 into at least three sub-cavities, namely a first sub-cavity 311, a second sub-cavity 312 and a third sub-cavity 313 in sequence, and each sub-cavity is provided with a terminal assembly. In order to avoid interference or even collision damage between the terminal assemblies, each terminal assembly is separated, and the space in the shell is further optimized.

[0031] In one embodiment, the volumes of the three sub-cavities are different, and the volumes of the sub-cavities increase in sequence along the width direction of the lower shell 3. By adaptively configuring the three sub-cavities with three pins 22 of different sizes, the waste of space is avoided.

[0032] In one embodiment, the lower shell 3 is provided with a plurality of second protrusions 34, and each second protrusion 34 is provided with a metal bushing 35. Each second protrusion 34 is provided with a through hole 341, and the metal bushing 35 is embedded in the through hole 341. The metal bushing 35 improves the installation torque of the product by interfering with the through hole 341 of the lower shell 3 and being fitted in the through hole 341. Further, the number of second protrusions 34 is multiple, preferably three, as shown in the figure. Figure 3 As shown, two second protrusions 34 are arranged on the two sides of the wedge-shaped end of the lower shell 3, and one second protrusion 34 is arranged on the end face of the square end of the lower shell 3.

[0033] In one embodiment, the metal bushing 35 is an open ring structure. By configuring the metal bushing as an open ring, the metal bushing can better interfere with the through hole 341, thereby improving the installation torque of the product. Preferably, the metal bushing 35 is made of copper or other known metal materials.

[0034] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and alterations can be made to these examples without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A three-phase insert for compressor applications, characterized in that: The device includes an upper housing, a terminal assembly, and a lower housing. The upper housing covers the lower housing and has a first through hole. The lower housing has a mounting cavity communicating with the first through hole. The terminal assembly is disposed in the mounting cavity and one end extends out of the first through hole of the upper housing. Both ends of the upper housing are provided with first snap-fit ​​members, and both ends of the lower housing are provided with second snap-fit ​​members. The first snap-fit ​​members and the second snap-fit ​​members are correspondingly disposed and fastened together.

2. The three-phase insert for compressor applications as described in claim 1, characterized in that: The first snap-fit ​​component includes a fastening portion extending from one end of the upper housing and having a second through hole, and the second snap-fit ​​component includes a first protrusion disposed at one end of the lower housing, the first protrusion being adapted to and connected to the second through hole of the fastening portion.

3. The three-phase insert for compressor applications as described in claim 2, characterized in that: The first snap-fit ​​component includes a hook disposed at the other end of the upper housing, and the second snap-fit ​​component includes a third through hole opened at the bottom of the lower housing, wherein the hook extends toward the lower housing and engages with the third through hole of the lower housing.

4. The three-phase insert for compressor applications as described in claim 1, characterized in that: The terminal assembly includes three groups, each group of which includes a contact terminal and a pin. One end of the pin is riveted or welded to the contact terminal, and the other end extends out from the first through hole.

5. The three-phase insert for compressor applications as described in claim 4, characterized in that: The area of ​​one end of the three-phase insert is larger than that of the other end, and the contact terminal is disposed at the end of the three-phase insert with the larger area.

6. The three-phase insert for compressor applications as described in claim 4, characterized in that: The three sets of terminal assemblies are spaced apart along the width direction of the lower housing, and the length of the pins increases sequentially.

7. The three-phase insert for compressor applications as described in claim 5, characterized in that: The lower housing is provided with multiple partitions, which divide the mounting cavity into at least three sub-cavities, and each sub-cavity is provided with a terminal assembly.

8. The three-phase insert for compressor applications as described in claim 7, characterized in that: The three sub-cavities have different volumes, and their volumes increase sequentially along the width direction of the lower shell.

9. The three-phase insert for a compressor application as described in any one of claims 1-8, characterized in that: The lower housing is provided with a plurality of second protrusions, and each of the second protrusions is provided with a metal bushing.

10. The three-phase insert for compressor applications as described in claim 9, characterized in that: The metal bushing is an open ring structure.

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