Frame, frame assembly, coil assembly and electronic expansion valve

Abstract

The present invention provides a skeleton, a skeleton assembly, a coil assembly and an electronic expansion valve, the skeleton including a frame body (10), a connection part (20) and a pin receiving seat (30), one end of the connection part (20) is provided on the peripheral surface of the frame body (10), the pin receiving seat (30) is provided on one end of the connection part (20) remote from the frame body (10), the skeleton further including a support part (40), the support part (40) is provided on the connection part (20), and the problem of poor waterproof effect of the coil assembly can be solved.

Description

[Technical Field]

[0001] This application claims priority to a patent application filed with the State Intellectual Property Office of China on December 15, 2021, bearing application number 202111538994.9 and titled "Skeleton, Skeleton Assembly, Coil Assembly and Electronic Expansion Valve."

[0002] This application claims priority to a patent application filed with the State Intellectual Property Office of China on December 15, 2021, bearing application number 202123189432.6 and titled "Skeleton, Skeleton Assembly, Coil Assembly and Electronic Expansion Valve."

[0003] The present application relates to the technical field of electronic expansion valves, and in particular to frameworks, framework assemblies, coil assemblies and electronic expansion valves. [Background technology]

[0004]

[0003] Currently, the coil assembly of an electronic expansion valve includes two skeletons that are interlocked with each other, with claw poles provided on the inner circumferential wall of the skeletons, windings provided on the outer circumferential surface of the skeletons, and an encapsulation layer provided around the skeletons and windings to ensure the waterproof insulation performance of the coil assembly. Typically, the skeletons and windings are encapsulated using injection molding, but the injection molding force is large during the injection molding process, which easily causes partial deformation of the skeletons. This deformation results in uneven distribution of the plastic encapsulant, which in turn affects the connection between the plastic encapsulant and the skeletons, resulting in a gap between the plastic encapsulant and the encapsulation layer after the plastic encapsulant has hardened, thereby affecting the waterproof insulation performance of the coil assembly. Summary of the Invention

[0005] The present application provides a framework, a framework assembly, a coil assembly, and an electronic expansion valve to solve the problem of poor waterproofing effect of the coil assembly in the prior art.

[0006] According to one aspect of the present application, there is provided a skeleton including a frame body, a connecting portion, and a pin receiving seat, one end of the connecting portion being provided on a peripheral surface of the frame body, the pin receiving seat being provided at one end of the connecting portion remote from the frame body, and the skeleton further including a support portion, the support portion being provided on the connecting portion.

[0007] When the technical aspects of the present application are applied, the provision of a support part can play a supporting role for the connection part of the skeleton, reducing deformation of the connection part of the skeleton during the encapsulation process, ensuring the uniform distribution of the encapsulation layer between the two connection parts, reducing or avoiding the occurrence of gaps between the encapsulation layer and the connection part, and improving the waterproof insulation effect of the encapsulation layer.

[0008] Furthermore, the support portion is provided on the connection portion eccentrically along the longitudinal direction of the connection portion, which can improve the support effect for the connection portion.

[0009] Furthermore, the number of support parts is plural, and the support parts are provided at intervals on the connection part. By arranging in this manner, the support effect for the connection part can be further improved.

[0010] Furthermore, the support portion includes a support pillar or support piece, and the support piece extends along the longitudinal direction of the connection portion. When installed in this manner, the entire end face of the support piece away from the connection portion forms a support surface, further increasing the support area and the support effect on the connection portion.

[0011] Furthermore, the support part includes a support pillar, and the cross section of the support pillar is circular or polygonal. By installing in this manner, the entire end face of the support pillar away from the connection part can be made flat, which further improves the stability of the engagement between the support pillar and other assemblies and ensures the supporting effect of the support pillar.

[0012] The pin seat further includes a connecting segment and an inserting segment connected to each other, the connecting segment is connected to the connecting part, the extending direction of the connecting segment and the extending direction of the inserting segment form an included angle, and a reinforcing part is provided between the connecting segment and the inserting segment, which reduces the occurrence of tearing between the connecting segment and the inserting segment, improves the connection strength between the connecting segment and the inserting segment, and extends the service life of the pin seat.

[0013] According to another aspect of the present application, there is provided a skeleton assembly including two skeletons that are lockingly engaged with each other, each skeleton including a frame body, a connecting portion, and a pin receiving seat, in each skeleton, one end of the connecting portion is provided on the circumferential surface of the frame body, and the pin receiving seat is provided at one end of the connecting portion remote from the frame body, the frame bodies of the two skeletons are provided opposite each other, the connecting portions of the two skeletons are provided opposite each other, and the pin receiving seats of the two skeletons are provided at offset positions, the skeleton assembly further including a support portion, the connecting portion of at least one of the two skeletons is provided with the support portion, and the support portion is used to support the connecting portion of the two skeletons.

[0014] By applying the technical aspects of the present application, when the two skeletons are locked together, the support part is located between the two connecting parts and can support the connecting parts of the two skeletons. Furthermore, deformation of the two connecting parts during injection molding can be reduced, the plastic encapsulant can be evenly filled between the two connecting parts, the connection effect between the plastic encapsulant and the connecting parts can be improved, the possibility of there being a gap between the connecting parts after the plastic encapsulant has hardened can be reduced, and the waterproof insulation effect of the coil assembly can be improved.

[0015] Furthermore, a support part is provided at each of the connection parts of the two frames, which further improves the support effect of the support part on the connection parts.

[0016] Furthermore, the support parts of one connection part and the support parts of the other connection part are provided at offset positions from each other. By installing in this manner, multiple support parts are distributed along the extension direction of the connection part, ensuring support at multiple positions of the connection part and ensuring a supporting effect for the connection part.

[0017] Furthermore, the support part at one connection part is provided opposite the support part at the other connection part. By arranging them in this way, the structure of the two skeletons becomes exactly the same, and additional molding dies and molding processes are not required when processing the skeletons, thereby improving production efficiency.

[0018] Furthermore, a support is provided at the connection part of one of the two frameworks, and when installed in this manner, the end face of the support can be fully abutted and engaged with the entire end face of the other connection part, ensuring the support effect of the support.

[0019] Furthermore, the support portion includes a support pillar or a support piece extending along the longitudinal direction of the connection portion, and the provision of the support piece can increase the contact area with the connection portion, further improving the support effect for the connection portion.

[0020] According to another aspect of the present application, there is provided a coil assembly including the above-described skeleton assembly.

[0021] According to another aspect of the present application, there is provided an electronic expansion valve including the coil assembly described above. [Brief explanation of the drawings]

[0022] The technical aspects of the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, but it is clear that the described embodiments are only some of the embodiments of the present application and do not represent all of the embodiments. Based on the embodiments of the present application, all other embodiments that can be obtained by a person skilled in the art without creative efforts shall fall within the scope of protection of the present application.

[0023] [Figure 1] 1 shows a schematic diagram of the structure of the scaffold provided by Example 1 of the present application. [Figure 2] FIG. 1 shows a front view of a scaffold provided by Example 1 of the present application. [Figure 3] FIG. 1 shows a side view of a scaffold provided by Example 1 of the present application. [Figure 4] FIG. 1 shows a top view of a scaffold provided by Example 1 of the present application. [Figure 5] 1 shows a structural schematic of another scaffold provided by Example 1 of the present application. [Figure 6] 1 shows a schematic diagram of the structure of the scaffold provided by Example 2 of the present application. [Figure 7] 1 shows a schematic diagram of the scaffold structure provided by Example 3 of the present application. [Figure 8] FIG. 1 shows a structural schematic of the scaffold assembly provided by Example 4 of the present application. [Figure 9] FIG. 1 shows a structural schematic of the scaffold assembly provided by Example 5 of the present application.

[0024] Here, the above drawings include the following reference numerals: 10 frame body, 20 connection portion, 30 pin receiving seat, 31 connection segment, 32 insertion segment, 33 reinforcement portion, 40 support portion, 50 seal rib. DETAILED DESCRIPTION OF THE INVENTION

[0025] The drawings in the specification that form a part of this application are intended to provide a further understanding of the application, and the schematic examples and descriptions thereof are intended to aid in the interpretation of the application and are not intended to unduly limit the application.

[0026] As shown in Figures 1 to 5, Example 1 of the present application provides a skeleton including a frame body 10, a connecting portion 20, and a pin receiving seat 30, one end of the connecting portion 20 being provided on the peripheral surface of the frame body 10, the pin receiving seat 30 being provided at one end of the connecting portion 20 away from the frame body 10, and the skeleton further including a support portion 40, the support portion 40 being provided on the connecting portion 20.

[0027] When the technical aspects of the present application are applied, the provision of the support part 40 can play a supporting role for the connecting part 20 of the skeleton, reducing deformation of the connecting part 20 of the skeleton during the encapsulation process, ensuring that the encapsulation layer is evenly distributed between the two connecting parts 20, reducing or avoiding gaps between the encapsulation layer and the connecting part 20, and improving the waterproof insulation effect of the encapsulation layer. Furthermore, during the encapsulation process, the encapsulation layer can also wrap around the outer periphery of the support part 40, further improving the strength of the connection between the encapsulation layer and the skeleton.

[0028] Specifically, the frame body 10 has a first end and a second end that are provided opposite each other along the axial direction, the connecting portion 20 is provided at the first end of the frame body 10, and the supporting portion 40 is provided at one end of the connecting portion 20 that is spaced apart from the second end. In addition, one or more supporting portions 40 may be provided, and the number of supporting portions 40 is not specifically limited in this embodiment.

[0029] Specifically, the connection portion 20 and the frame body 10 have an integrally molded structure. When a plurality of support portions 40 are provided, the plurality of support portions 40 may be provided at intervals along the extension direction of the connection portion 20. When a single support portion 40 is provided, the support portion 40 may be provided at the center of the connection portion 20 in the longitudinal direction, or may be provided eccentrically along the longitudinal direction of the connection portion 20. In this embodiment, one support portion 40 is provided, and it is provided at an end portion of the connection portion 20, and the support portion 40 and the connection portion 20 have an integrally molded structure. When installed in this manner, the support effect of the support portion 40 on the end portion of the connection portion 20 can be reinforced, and the connection strength between the support portion 40 and the connection portion 20 can be ensured, further improving the support effect of the support portion 40.

[0030] Specifically, the end face of the support part 40 away from the connection part 20 is flat, and in this embodiment, the support part 40 is a support pillar, and the cross section of the support part 40 may be circular or polygonal, and the cross section of the support pillar is not specifically limited in this embodiment. By installing in this manner, the support part 40 can be easily processed and shaped, and the support stability of the support part 40 can be ensured.

[0031] Here, a plurality of pin receiving seats 30 are provided at intervals along the extension direction of the connection portion 20, and in this embodiment, three pin receiving seats 30 are provided at intervals along the extension direction of the connection portion 20. The framework further includes a seal rib 50, which is provided on the connection portion 20, and the seal rib 50 and the connection portion 20 are of an integrally molded structure, the extension direction of the seal rib 50 is the same as the extension direction of the connection portion 20, and a plurality of seal ribs 50 may be provided in parallel, and the seal ribs 50 and the support portion 40 are distributed along the direction from the frame body 10 toward the pin receiving seat 30. In this embodiment, four seal ribs 50 are provided in parallel. Since the entire end face of the end of the connection part 20 away from the pin receiving seat 30 is connected to the frame body 10, the degree of deformation of the end of the connection part 20 connected to the frame body 10 is small, and with the above-mentioned installation, the support point of the support part 40 is positioned at the end of the connection part 20 away from the frame body 10, thereby improving the support effect for the connection part 20.

[0032] Furthermore, the pin receiving seat 30 includes a connecting segment 31 and an inserting segment 32, which are connected to each other. The connecting segment 31 is connected to the connecting section 20. The extending direction of the connecting segment 31 and the extending direction of the inserting segment 32 form an included angle. A reinforcing section 33 is provided between the connecting segment 31 and the inserting segment 32. Specifically, the connecting segment 31 and the connecting section 20 are integrally molded, and the connecting segment 31 and the inserting segment 32 are also integrally molded, and both the connecting segment 31 and the inserting segment 32 are integrally molded with the reinforcing section 33. This arrangement can avoid or reduce the phenomenon of tearing at the connection between the connecting segment 31 and the inserting segment 32, improve the connection strength between the connecting segment 31 and the inserting segment 32, and extend the service life of the pin receiving seat 30. Here, the reinforcing section 33 may be a cylindrical structure or a block structure. In this embodiment, the cross section of the reinforcing section 33 is triangular. By making the cross section of the reinforcing portion 33 a triangular structure, it is possible to reduce the tendency of two adjacent pin receiving seats 30 to approach or separate from each other during the injection molding process, thereby improving the stability of the pin receiving seats 30 during the injection molding process and improving the injection molding accuracy.

[0033] 6, Example 2 of the present application provides a framework, and differs from Example 1 in that a plurality of support pillars are provided, and the plurality of support pillars are provided at intervals along the extension direction of the connection part 20, and the number of support pillars is not limited in this embodiment. In this example, two support pillars are provided at intervals along the extension direction of the connection part 20, and the two support pillars are provided at two ends of the connection part 20, respectively.

[0034] 7, Example 3 of the present application provides a framework, which differs from Example 1 in that the support portion 40 is a support piece that extends along the longitudinal direction of the connecting portion 20, and although a plurality of support pieces may be provided in parallel, in this example, only one support piece is provided. The provision of the support piece increases the support area of ​​the support portion 40, enabling it to support the entire end of the frame body 10 on the far side of the connecting portion 20, reducing deformation of the connecting portion 20 and further improving the support effect.

[0035] As shown in FIG. 8, Example 4 of the present application provides a skeleton assembly including two skeletons and a support part 40 that are lockingly engaged with each other, each skeleton including a frame body 10, a connecting part 20, and a pin receiving seat 30, in each skeleton, one end of the connecting part 20 is provided on the peripheral surface of the frame body 10, the pin receiving seat 30 is provided at one end of the connecting part 20 away from the frame body 10, the frame bodies 10 of the two skeletons are provided opposite each other, the connecting parts 20 of the two skeletons are provided opposite each other, the pin receiving seats 30 of the two skeletons are provided at offset positions, the connecting part 20 of at least one of the two skeletons is provided with a support part 40, and the support part 40 is used to support the connecting parts 20 of the two skeletons.

[0036] By applying the technical aspects of the present application, when the two skeletons are locked together, the support part 40 is located between the two connecting parts 20 and can support the connecting parts 20 of the two skeletons. Furthermore, deformation of the two connecting parts 20 during injection molding can be reduced, the plastic encapsulant can be evenly filled between the two connecting parts 20, the connection effect between the plastic encapsulant and the connecting parts 20 can be improved, and the possibility of there being a gap between the connecting parts 20 after the plastic encapsulant has hardened can be reduced, thereby improving the waterproof insulation effect of the coil assembly.

[0037] In this embodiment, the connecting portion 20 of one skeleton in the skeleton assembly is not provided with a support portion 40, and this skeleton is the first skeleton, while the connecting portion 20 of the other skeleton is provided with a support portion 40, and this skeleton is the second skeleton. Here, the second skeleton is the skeleton in Example 2. When the first skeleton and the second skeleton are locked together, the two support pillars of the second skeleton both abut against the connecting portion 20 of the first skeleton and support the two ends of the first connecting portion 20 and the second connecting portion 20, respectively, to achieve a supporting effect for the first connecting portion 20 and the second connecting portion 20.

[0038] As shown in Figure 9, Example 5 of the present application provides a skeleton assembly, which differs from Example 4 in that the second skeleton is the skeleton in Example 3. When the first skeleton and the second skeleton are locked together, the support piece and the connecting portion 20 of the first skeleton are abutted and engaged with each other to provide support for the two connecting portions 20. When installed in this manner, the support piece supports the connecting portion 20 of the first skeleton and the end of the connecting portion 20 of the second skeleton, further ensuring the supporting effect.

[0039] Here, both of the two skeletons of the skeleton assembly can be provided with support parts 40. When both of the skeletons of the skeleton assembly are provided with support parts 40, the support parts 40 in one connecting part 20 and the support parts 40 in the other connecting part 20 are provided at offset positions relative to each other. Example 6 of the present application provides a skeleton assembly, which differs from Example 4 in that the connecting part 20 of the first skeleton is also provided with a support part 40, and both the first and second skeletons are the skeletons of Example 1. When installed in this manner, the first and second skeletons have identical structures, and when the two skeletons are locked together, the support parts 40 in the first skeleton and the connecting parts 20 in the second skeleton are abuttingly engaged, and the support parts 40 in the second skeleton and the connecting parts 20 in the first skeleton are abuttingly engaged, and further, the two support parts 40 respectively support two ends of the two connecting parts 20. Therefore, the above installation eliminates the need for additional molding dies and molding processes when processing the skeletons, further improving production efficiency and reducing production costs.

[0040] Example 7 of the present application provides a skeleton assembly in which both skeletons in the skeleton assembly are provided with support parts 40, and differs from Example 6 in that both skeletons are the skeletons in Example 2, and when the two skeletons are locked together, the support parts 40 in the two connecting parts 20 abut and engage with each other to provide support for the two connecting parts 20. With the above-mentioned arrangement, the two skeletons have exactly the same structure, and no additional molding dies or molding processes are required when processing the skeletons, improving production efficiency.

[0041] Example 8 of the present application provides a skeleton assembly in which two skeletons in the skeleton assembly are both provided with support parts 40, and differs from Example 6 in that both skeletons are the skeletons in Example 3, and when the two skeletons are locked together, the support pieces in the two connecting parts 20 are abutted and engaged with each other to provide support for the two connecting parts 20.

[0042] Example 9 of the present application provides a coil assembly including the skeletal assembly in Example 6.

[0043] Example 10 of the present application provides an electronic expansion valve including the coil assembly in Example 9.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present application. As used herein, the singular also intends to include the plural unless the context clearly dictates otherwise, and it should also be understood that when the terms "comprise" and / or "comprises" are used herein, it means that features, steps, operations, devices, assemblies, and / or combinations thereof are present.

[0045] Unless otherwise specifically stated, the relative arrangements of components and steps, formulas, and numerical values ​​described in these embodiments do not limit the scope of this application. At the same time, it should be understood that, for the sake of convenience, the dimensions of each part shown in the drawings are not drawn to actual proportions. Detailed descriptions of techniques, methods, and equipment already known to those skilled in the art may be omitted, but, where necessary, such techniques, methods, and equipment should be considered part of the approved specification. In all examples shown and described herein, any specific values ​​should be construed as merely illustrative and not limiting. Therefore, other examples of the illustrative embodiments may have different values. It should be noted that similar symbols and characters represent similar objects in the following drawings, so once something is defined in one drawing, there is no need to further describe it in subsequent drawings.

[0046] In the description of this application, orientations or positional relationships expressed by directional terms such as "front, rear, top, bottom, left, right," "lateral, longitudinal, vertical, horizontal," and "top, bottom" are generally based on the orientations or positional relationships shown in the drawings, but this is merely for the ease and simplicity of the description of this application, and unless otherwise stated, these directional terms do not necessarily indicate or imply that the devices or elements shown have a specific orientation or are constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of this application, and directional terms such as "inside, outside" refer to the inside and outside of the contours of each member itself.

[0047] For convenience of description, spatially relative terms such as "above," "upper," "on top of," "above," etc. may be used herein to describe the spatial location of one device or feature relative to another device or feature, as shown in the figures. It should be understood that spatially relative terms are intended to encompass different orientations during use or operation other than the orientation depicted in the figures of the device. For example, if a device in the figures were turned upside down, a device described as "above other devices or structures" or "on top of other devices or structures" would then be positioned "below other devices or structures" or "below other devices or structures." Thus, the exemplary term "above" can encompass two orientations: "above" and "below." The device can also be oriented in other different ways (rotated 90 degrees or positioned at other orientations) and a corresponding interpretation given to the spatially relative descriptions used herein.

[0048] It should be further explained that the use of terms such as "first" and "second" to define components is merely for distinguishing corresponding components, and unless otherwise specified, the terms do not have any special meaning and should not be understood as limiting the scope of protection of the present application.

[0049] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and those skilled in the art can make various modifications and variations to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A skeleton including a frame body (10), a connecting portion (20), and a pin receiving seat (30), one end of the connecting portion (20) being provided on the peripheral surface of the frame body (10), the pin receiving seat (30) being provided at one end of the connecting portion (20) remote from the frame body (10), the skeleton further including a support portion (40), the support portion (40) being provided at the connecting portion (20), The pin receiving seat (30) includes a connecting segment (31) and an inserting segment (32) connected to each other, the connecting segment (31) is connected to the connecting portion (20), the extending direction of the connecting segment (31) and the extending direction of the inserting segment (32) form an included angle, and a reinforcing portion (33) is provided between the connecting segment (31) and the inserting segment (32).

2. 2. A framework according to claim 1, wherein the support portion (40) is provided on the connecting portion (20) eccentrically along the longitudinal direction of the connecting portion (20).

3. The framework according to claim 1, wherein the number of the support portions (40) is plural, and the support portions (40) are provided at the connection portion (20) at intervals.

4. 2. The framework of claim 1, wherein the support portion (40) comprises a support post or piece, the support piece extending along the length of the connecting portion (20).

5. 2. The scaffolding of claim 1, wherein said support portions (40) include support posts, said support posts having a circular cross section.

6. A skeleton as described in claim 1, wherein the support portion (40) includes a support pillar, and the cross section of the support pillar is polygonal.

7. A skeleton assembly comprising two skeletons locked together, each of the skeletons comprising a frame body (10), a connecting portion (20), and a pin receiving seat (30), in each of the skeletons, one end of the connecting portion (20) is provided on the circumferential surface of the frame body (10), the pin receiving seat (30) is provided at one end of the connecting portion (20) remote from the frame body (10), the frame bodies (10) of the two skeletons are provided opposite each other, the connecting portions (20) of the two skeletons are provided opposite each other, and the pin receiving seats (30) of the two skeletons are provided at offset positions, the skeleton assembly further comprising a support portion (40), the connecting portion (20) of at least one of the two skeletons is provided with the support portion (40), and the support portion (40) is used to support the connecting portions (20) of the two skeletons, The pin receiving seat (30) includes a connecting segment (31) and an inserting segment (32) connected to each other, the connecting segment (31) is connected to the connecting portion (20), the extending direction of the connecting segment (31) and the extending direction of the inserting segment (32) form an included angle, and a reinforcing portion (33) is provided between the connecting segment (31) and the inserting segment (32).

8. 8. The skeletal assembly according to claim 7, wherein the support portion (40) is provided at each of the two connection portions (20) of the skeletal members.

9. 9. The skeletal assembly according to claim 8, wherein the support portions (40) at one of the connection portions (20) and the support portions (40) at the other of the connection portions (20) are provided in offset positions relative to each other.

10. The skeletal assembly according to claim 8, wherein the support portion (40) at one of the connection portions (20) and the support portion (40) at the other of the connection portions (20) are provided opposite each other.

11. 8. A skeleton assembly according to claim 7, wherein the connection portion (20) of one of the two skeletons is provided with the support portion (40).

12. 8. The skeletal assembly according to claim 7, wherein the support portion (40) comprises a support post or piece, the support piece extending along the longitudinal direction of the connecting portion (20).

13. A coil assembly comprising a skeletal assembly according to any one of claims 7 to 12.

14. An electronic expansion valve comprising the coil assembly of claim 13.

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