An automobile air conditioner electronic expansion valve assembly

Abstract

The application provides an automobile air conditioner electronic expansion valve assembly, which comprises an electronic expansion valve and a support, the electronic expansion valve comprises a valve seat, a motor coil and a socket, the motor coil is fixed on the valve seat, the support has a support plate capable of supporting the valve seat, the support plate is threadedly connected with the valve seat through locking bolts, the support further has a supporting lug, and the socket is clampedly fixed with the supporting lug; the valve seat is fixed on the support, the motor coil is fixed on the valve seat, and the socket is clampedly fixed on the supporting lug, so that the electronic expansion valve is integrally fixed on the support to form the electronic expansion valve assembly; and the supporting lug and the support plate form a step through a first vertical section, the valve seat and the socket are installed in a staggered mode in the vertical direction, and the structure is compact; and the electromagnetic valve assembly integrates the several parts, can realize production, sales, transfer and transportation, storage, and assembly on a vehicle production line in one state.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of new energy vehicle refrigeration, and particularly relates to an electronic expansion valve assembly of a vehicle air conditioner. BACKGROUND

[0002] The air conditioner expansion valve is a key part for refrigeration control of the vehicle air conditioner system. At present, many throttling devices used in freon refrigeration are still thermal expansion valves, and the working principle thereof is to adjust the flow of refrigerant by sensing the superheat degree of refrigerant vapor at the outlet of the evaporator. However, this kind of adjustment mode of sensing the superheat degree can cause problems of inaccurate and untimely adjustment and low adjustment precision. In addition, the deformation amount of the diaphragm connected with the valve needle is limited, so that the movement displacement of the valve needle is small, and thus the flow adjustment range is small. These problems cannot be met by the thermal expansion valve for a refrigeration system with large load variation or a variable frequency compressor system.

[0003] At present, for the new energy vehicle field which is developed vigorously, the air conditioner compressor is generally variable frequency, and thus the electronic expansion valve is widely used. The electronic expansion valve is generally composed of a valve seat, a motor coil, a socket, and a coil wire harness, and is controlled by an electronic signal. Therefore, the stability and reliability of the electronic expansion valve are required to be high, and the problems of being easily scratched or slipped in the manufacturing link, the transportation link, the packaging and storage link, etc. of the valve seat, the motor coil, and the socket need to be avoided. The quality of the manufacturing link, the transportation link, the packaging and storage link, etc. of the electronic expansion valve needs to be controlled, and thus the mounting bracket is urgently needed to protect the electronic expansion valve.

[0004] Through retrieval, no similar technical solution of the application has been disclosed. SUMMARY

[0005] The application aims at solving the technical problems in the prior art, and the purpose of the application is to provide an electronic expansion valve assembly of a vehicle air conditioner.

[0006] In order to achieve the above-mentioned purpose, the application adopts the following technical solution: an electronic expansion valve assembly of a vehicle air conditioner, comprising an electronic expansion valve and a bracket for mounting and fixing the electronic expansion valve. The electronic expansion valve comprises a valve seat, a motor coil mounted on the valve seat, and a socket electrically connected with the motor coil through a coil wire harness. The motor coil is fixed on the valve seat through a coil screw. The bracket has a horizontally arranged support plate capable of supporting the valve seat. The support plate is threadedly connected with the valve seat through locking bolts. The bracket also has an ear corresponding to the socket and formed by bending the support plate. The ear is horizontally arranged and located on the outer side of the support plate above. The ear is connected with the support plate through a first vertical segment. The socket is clamped and fixed on the ear.

[0007] In the technical scheme, the valve seat is fixed on the support plate of the support through the locking bolt, the motor coil is fixed on the valve seat through the coil screw, and the socket is clamped and fixed on the lug of the support, so that the electronic expansion valve is fixed on the support as a whole to form an electronic expansion valve assembly. In addition, the horizontal arrangement of the support plate enables the valve seat to be located at a horizontal position, and the inlet and outlet of the refrigerant can flow in and out horizontally. The lug and the support plate form a step through the first vertical section, and the valve seat and the socket are installed in a staggered manner in the vertical direction, so that the structure is compact. The electromagnetic valve assembly of the present application can integrate the scattered parts into one, and can keep the electronic expansion valve parts in one state from production, sales, transportation, storage to assembly on the vehicle production line.

[0008] In a preferred embodiment of the present application, the socket has a socket wire clamp, the lug is provided with a wire clamp hole, and the socket wire clamp is fixed by buckling with the wire clamp hole through the reverse buckle structure.

[0009] In the technical scheme, the socket with the socket wire clamp is buckled with the wire clamp hole on the lug through the reverse buckle structure, so that the socket and the vehicle body wire harness connector can be fixed firmly, and the problem that the socket and the vehicle body wire harness connector are easily disconnected or generate electric sparks due to shaking during work after being connected can be avoided.

[0010] In a preferred embodiment of the present application, the support plate is provided with a connecting hole, the bottom of the valve seat is provided with a threaded hole, and the locking bolt is threadedly connected with the threaded hole of the valve seat through the connecting hole.

[0011] In a preferred embodiment of the present application, the side of the first vertical section in the width direction has an L-shaped flange for protecting the direction of the coil wire harness.

[0012] In the technical scheme, the L-shaped flange can protect the direction of the coil wire harness, and the coil wire harness is connected closely to the inner side and avoids the sharp edge of the first vertical section. In addition, the L-shaped flange can also strengthen the bending part of the support.

[0013] In a preferred embodiment of the present application, after the socket is installed on the lug, the plug pin of the socket is horizontally left.

[0014] In the technical scheme, the plug pin of the socket is horizontally left, which is beneficial to the plug-in connection of the vehicle body wire harness connector and the wiring of the wire harness, improves the durability of the connection with the vehicle body wire harness, and can better prevent moisture and dampness.

[0015] In another preferred embodiment of the present application, the support further has a second vertical section extending downward along the front end of the support plate and used for connecting with the vehicle body, and the second vertical section is connected with the vehicle body through the bolt.

[0016] In another preferred embodiment of the present application, the second vertical section has two through holes, and two nuts are fixed to the rear side of the support plate and aligned with the two through holes respectively.

[0017] In the above technical solution, the nuts are welded on the second vertical section, so that quick assembly and disassembly can be formed, and the electronic expansion valve assembly can be quickly assembled and fixed to the vehicle body, thereby improving the assembly efficiency.

[0018] In another preferred embodiment of the present application, the two side edges of the support plate in the width direction have π-shaped flanges for reinforcement.

[0019] In the above technical solution, the π-shaped flanges can reinforce the strength of the bracket.

[0020] In another preferred embodiment of the present application, the π-shaped flanges extend from the side of the support plate to the side of the second vertical section.

[0021] In the above technical solution, the π-shaped flanges extending to the second vertical section can further reinforce the strength of the bracket, and at the same time, the weight of the bracket is reduced.

[0022] In another preferred embodiment of the present application, the bracket is bent from a sheet metal part.

[0023] In the above technical solution, the bracket is easy to process, has a simple structure, small size, light weight, and low cost.

[0024] Compared with the prior art, the preferred technical solution of the present application has the following beneficial effects:

[0025] 1) The electronic expansion valve assembly of the present application has a small size, simple structure, light weight, low cost, and is suitable for a wide range of vehicle models during layout, and has high flexibility and versatility.

[0026] 2) The present application integrates the valve body, motor coil, socket, and coil wire harness into one whole with the bracket, avoiding the problem of easy damage or slipping in the manufacturing, transportation, packaging, and storage links, thereby ensuring the quality of the product.

[0027] 3) The electronic expansion valve assembly of the present application can be quickly assembled and disassembled through the nuts on the bracket when fixedly assembled with the vehicle body, thereby improving the assembly efficiency.

[0028] 4) The electronic expansion valve assembly of the present application is fixedly installed with the socket, thereby protecting the socket from moisture, humidity, and dust, facilitating the plug-in connection of the socket with the vehicle body wire harness connector, and improving the durability of the connection with the vehicle body wire harness.

[0029] Additional aspects and advantages of the present application will be partially given in the following description, partially will become apparent from the following description, or will be understood by those skilled in the art through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the description of the embodiments, given in conjunction with the following drawings, in which:

[0031] Fig. 1 is an exploded view of an automobile air conditioner electronic expansion valve assembly of an embodiment.

[0032] Fig. 2 is a perspective structural schematic view of an automobile air conditioner electronic expansion valve assembly of an embodiment.

[0033] Fig. 3 is a structural schematic view of a bracket in an embodiment of the present application.

[0034] The reference signs in the drawings of the specification include: bracket 1, support plate 11, connecting hole 111, π-shaped flange 112, lug 12, wire clamping hole 121, first vertical section 13, L-shaped flange 131, second vertical section 14, through hole 141, valve seat 2, motor coil 3, socket 4, socket wire clamping 41, coil wire harness 42, plug pin 43, locking bolt 5, coil screw 51, nut 6, lug width H. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In the description of the present application, unless otherwise specified and limited, it should be noted that the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be mechanical connection or electrical connection, it can be the communication between two elements, it can be direct connection, or indirect connection through intermediate medium, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0038] The present application provides an automobile air conditioner electronic expansion valve assembly, as Figs. 1-3As shown, in a preferred embodiment of the present application, the electronic expansion valve assembly comprises an electronic expansion valve and a bracket 1 for mounting and fixing the electronic expansion valve, the electronic expansion valve comprises a valve seat 2, a motor coil 3 mounted on the valve seat 2, and a socket 4 electrically connected with the motor coil 3 through a coil wire harness 42. The motor coil 3 is located at the top of the valve seat 2, the socket 4 is arranged at the rear side of the motor coil 3, and the motor coil 3 is fixed on the valve seat 2 through a coil screw 51, specifically a threaded hole is arranged at the rear side of the valve seat 2 to cooperate with the coil screw 51 for locking.

[0039] In the present application, the bracket 1 has a support plate 11 capable of supporting the valve seat 2, and the support plate 11 is threadedly connected with the valve seat 2 through a locking bolt 5. The support plate 11 is horizontally arranged, two connecting holes 111 are arranged on the support plate 11 along the width direction of the support plate 11, the bottom of the valve seat 2 is provided with two threaded holes, and the locking bolt 5 is threadedly connected with the threaded holes of the bottom of the valve seat 2 from bottom to top through the connecting holes 111.

[0040] In the present application, the bracket 1 further has an ear 12 corresponding to the socket 4 and arranged by bending the support plate 11, and the socket 4 is clamped and fixed on the ear 12. The ear 12 is also horizontally arranged, the ear 12 is located at the rear side above the support plate 11, the ear 12 is connected with the support plate 11 through a first vertical section 13, and the ear 12 and the support plate 11 form a step through the first vertical section 13. After the socket 4 is mounted on the ear 12, the pin 43 of the socket 4 is horizontally left, which is beneficial to the plug connection of the pin 43 of the socket 4 with the vehicle body wire harness connector.

[0041] In the automobile, if the wire harness connector is not fixed, the socket 4 is easily disconnected or vibrates to generate electric sparks during work after being connected with the vehicle body wire harness connector. The socket 4 with the socket wire clamp 41 is buckled with the wire clamp hole 121 (a square hole or a round hole) on the ear 12 through a reverse buckle structure, so as to firmly fix the socket 4 and the vehicle body wire harness connector.

[0042] In another preferred embodiment of the present application, one side of the first vertical section 13 in the width direction has an L-shaped flange 112 for protecting the running direction of the coil wire harness 42. Since the coil wire harness 42 is located at the left side of the socket 4, the L-shaped flange 112 is correspondingly arranged at the left side of the first vertical section 13. The L-shaped flange 112 protects the running direction of the coil wire harness 42 on one hand, and strengthens the strength of the bracket 1 on the other hand.

[0043] In the present application, the bracket 1 further has a second vertical section 14 extending downward along the front end of the support plate 11 for connecting with the vehicle body, and the second vertical section 14 is connected with the vehicle body by bolts. For example, the second vertical section 14 has two through holes 141 arranged in the width direction of the second vertical section 14, and two nuts 6 are welded on the second vertical section 14 in alignment with the two through holes 141 respectively, and the bolts on the vehicle body are screwed with the nuts 6 to fix the electronic expansion valve assembly on the vehicle body.

[0044] In another preferred embodiment of the present application, in order to ensure the overall strength of the bracket 1, π-shaped flanges 112 are arranged on both sides of the support plate 11 in the width direction, and the π-shaped flanges 112 are bent from the side of the support plate 11 and extend downward to the side of the second vertical section 14, thereby greatly enhancing the strength of the bracket 1 while reducing the weight of the bracket 1.

[0045] The bracket 1 of the present application is simply bent from sheet metal parts, the thickness of the steel plate is less than 1.0 mm, the width H of the lug for mounting the socket 4 is less than 22 mm, and the bracket 1 is a sheet metal part with small volume and light weight.

[0046] In the description of the present application, the description of the terms "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An automotive air conditioning electronic expansion valve assembly, characterized by, The electronic expansion valve comprises a valve seat, a motor coil installed on the valve seat, and a socket electrically connected with the motor coil through a coil wire harness, and the motor coil is fixed on the valve seat through a coil screw; The bracket has a horizontally arranged support plate capable of supporting the valve seat, and the support plate is threadedly connected with the valve seat through a locking bolt; The bracket further has an ear corresponding to the socket and formed by bending the support plate, the ear is horizontally arranged, and the ear is located outside above the support plate, the ear is connected with the support plate through a first vertical section, the ear and the support plate form a step through the first vertical section, and the socket is clamped and fixed on the ear; The edge of the first vertical section in the width direction has an L-shaped flange for protecting the coil wire harness.

2. The electronic expansion valve assembly for an automotive air conditioner according to claim 1, wherein The socket has a socket wire clamp, the ear is provided with a wire clamp hole, and the socket wire clamp is fixed through reverse buckling with the wire clamp hole.

3. The electronic expansion valve assembly for an automotive air conditioner according to claim 1, wherein The support plate is provided with a connecting hole, the bottom of the valve seat is provided with a threaded hole, and the locking bolt is threadedly connected with the threaded hole of the valve seat through the connecting hole.

4. The electronic expansion valve assembly of claim 1, wherein, After the socket is installed on the ear, the plug pin of the socket is horizontally arranged to the left.

5. The electronic expansion valve assembly of any one of claims 1-4, wherein, The bracket further has a second vertical section extending downward from the front end of the support plate for connecting with a vehicle body, and the second vertical section is connected with the vehicle body through a bolt.

6. The electronic expansion valve assembly of claim 5, wherein the electronic expansion valve assembly is an automotive air conditioning electronic expansion valve assembly. The second vertical section has two through holes arranged therethrough, and two nuts are respectively arranged in alignment with the two through holes and fixed to the rear side of the support plate.

7. The electronic expansion valve assembly of claim 5, wherein the electronic expansion valve assembly is an automotive air conditioning electronic expansion valve assembly. The two side edges of the support plate in the width direction have π-shaped flanges for reinforcement.

8. The electronic expansion valve assembly of claim 7, wherein the electronic expansion valve assembly is an automotive air conditioning electronic expansion valve assembly. The π-shaped flanges extend from the side edges of the support plate to the side edges of the second vertical section.

9. An electronic expansion valve assembly for an automotive air conditioner according to any one of claims 1 to 4, wherein The bracket is made of sheet metal and is bent.

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