阅读说明：本技术 接线端盖组件及压缩机 (Terminal cover subassembly and compressor ) 是由 符增辉 吕浩福 于 2019-10-18 设计创作，主要内容包括：本发明提供了一种接线端盖组件及压缩机,涉及压缩机技术领域,解决了现有技术中通常通过接线柱壳体的喇叭口与端盖相接触以限制接线柱组件脱离端盖,限制接线柱组件脱离的结构单一的技术问题。接线端盖组件包括接线柱壳体和端盖,其中,接线柱壳体的周向侧壁上存在限位部,端盖与接线柱壳体相配合的内侧面上形成有台阶结构,限位部与台阶结构相接触以能限制接线柱壳体向端盖外的一侧移动。本发明用于降低接线柱组件的加工成本、提高接线柱组件的耐压强度。(The invention provides a terminal cover assembly and a compressor, relates to the technical field of compressors, and solves the technical problems that in the prior art, a terminal assembly is generally limited to be separated from an end cover through the contact of a horn mouth of a terminal shell and the end cover, and the separation of the terminal assembly is limited to be single in structure. The wiring terminal cover component comprises a wiring terminal shell and an end cover, wherein a limiting portion is arranged on the circumferential side wall of the wiring terminal shell, a step structure is formed on the inner side face of the end cover matched with the wiring terminal shell, and the limiting portion is in contact with the step structure to limit the wiring terminal shell to move towards one side outside the end cover. The invention is used for reducing the processing cost of the wiring terminal assembly and improving the compressive strength of the wiring terminal assembly.)

1. A terminal cover assembly, comprising a terminal housing (1) and an end cap (2), wherein,

there are spacing portion (3) on the circumference lateral wall of terminal housing (1), end cover (2) with be formed with the stair structure on terminal housing (1) matched with medial surface, spacing portion (3) with the stair structure contacts with can restrict terminal housing (1) to the outer one side of end cover (2) removes.

2. Terminal cover assembly according to claim 1, characterized in that the terminal housing (1) is punch-formed.

3. The terminal cover assembly according to claim 1 or 2, wherein the stopper portion (3) is welded to the terminal housing (1).

4. The terminal cover assembly according to claim 1, wherein a sealing ring (4) is arranged on the end cover (2), and the circumferential outer side surface of the limiting part (3) is in contact with the sealing ring (4).

5. Terminal cover assembly according to claim 1 or 4, wherein at least the circumferential outer side of the stopper (3) is a machined surface.

6. The terminal cover assembly according to claim 1, wherein a first fitting hole (5) and a second fitting hole (6) are formed on the inner side surface of the terminal cover (2) which is fitted to the terminal housing (1), the first fitting hole (5) and the second fitting hole (6) form a stepped hole, the first fitting hole (5) is disposed on the side of the second fitting hole (6) which is close to the outside of the terminal cover (2), and the diameter of the first fitting hole (5) is smaller than that of the second fitting hole (6); the limiting part (3) is in sealing fit with the second matching hole (6), and the end face of the limiting part is in contact with the inner side face of the end cover (2).

7. The terminal cover assembly according to claim 6, wherein a sealing ring mounting groove (7) is provided on a wall of the second fitting hole (6), and a space is provided between the sealing ring mounting groove (7) and the first fitting hole (5).

8. The terminal cover assembly according to claim 1, wherein the limiting portion (3) is of a circular ring structure and the limiting portion (3) is sleeved on the terminal housing (1).

9. Terminal cover assembly according to claim 1 or 8, wherein the stopper (3) is a steel ring.

10. A compressor comprising the terminal cover assembly of any one of claims 1-9.

Technical Field

The invention relates to the technical field of compressors, in particular to a terminal cover assembly and a compressor with the same.

Background

The pressure strength of a shell required by the existing vehicle-mounted air conditioner compressor meets safety requirements, such as the shell requirement of an R744 refrigerant compressor, the pressure resistance of a high-pressure side is 42MPa, and the pressure resistance of a low-pressure side is 28.6 MPa; the terminal assembly mounted on the housing or the end cap is also required to satisfy the above compressive strength requirement, so that the thickness of the terminal housing is generally required to be thick (the bell mouth of the terminal housing is in contact with the end cap to restrict the terminal housing from being separated from the end cap, so that the thicker the thickness of the terminal housing, the higher the compressive strength.

The prior terminal shell is almost formed by punching or machining. The thickness of the punch-formed binding post shell cannot be too thick, otherwise the requirement on a punch-formed grinding tool is high, the process is difficult to realize, and the processing cost is relatively high, so that the punch-formed binding post shell is not an optimal choice; for the binding post shell processed by adopting a machining process mode, the thickness can be increased, the process can be realized, but the processing procedures are more, the processing process is relatively complex, the production efficiency is lower than that of punch forming, and therefore, the processing cost is higher, and the optimal selection is not realized. Therefore, a wiring terminal assembly which is reliable in installation, strong in compressive strength and simple in processing technology is urgently needed.

Disclosure of Invention

The invention aims to provide a terminal cover assembly and a compressor with the same, and solves the technical problems that in the prior art, the terminal assembly is generally limited to be separated from an end cover through the contact of a horn mouth of a terminal shell and the end cover, and the separation of the terminal assembly is limited to be single in structure. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a wiring terminal cover assembly which comprises a wiring terminal shell and an end cover, wherein a limiting part is arranged on the circumferential side wall of the wiring terminal shell, a step structure is formed on the inner side surface of the end cover matched with the wiring terminal shell, and the limiting part is in contact with the step structure so as to limit the wiring terminal shell to move towards one side outside the end cover.

Further, the terminal housing is formed in a stamping mode.

Further, the limiting part is connected with the wiring terminal shell in a welding mode.

Further, be provided with the sealing washer on the end cover, the circumference lateral surface of spacing portion with the sealing washer contacts.

Further, at least the circumferential outer side surface of the limiting part is a machined surface.

Furthermore, a first matching hole and a second matching hole are formed in the inner side face, matched with the terminal housing, of the end cover, a stepped hole is formed in the first matching hole and the second matching hole, the first matching hole is formed in one side, close to the outer side of the end cover, of the second matching hole, and the diameter of the first matching hole is smaller than that of the second matching hole; the limiting part is in sealing fit with the second matching hole, and the end face of the limiting part is in contact with the inner side face of the end cover.

Further, a sealing ring mounting groove is formed in the hole wall of the second matching hole, and a distance exists between the sealing ring mounting groove and the first matching hole.

Furthermore, the limiting part is of a circular ring structure and is sleeved on the terminal shell.

Further, the limiting part is a steel ring.

A compressor comprises the terminal cover assembly.

According to the wiring terminal assembly provided by the invention, the limiting part is arranged on the wiring terminal shell and matched with the step structure on the end cover, and when the wiring terminal assembly is stressed on the compressor, the force on the wiring terminal shell is transmitted to the end cover through the limiting part.

The preferred technical scheme of the invention can at least produce the following technical effects:

the terminal shell can adopt stamping forming, and thickness can need not be too thick (because mainly be through spacing portion transmission power), and spacing portion can be welded connection with the terminal shell, when realizing reducing the processing cost, can improve the compressive strength of terminal subassembly to a certain extent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a prior art terminal cover assembly;

FIG. 2 is a schematic top view of a prior art terminal cover assembly;

FIG. 3 is a schematic cross-sectional view of a prior art end cap assembly;

FIG. 4 is a cross-sectional schematic view of a prior art terminal assembly (the terminal housing is not deformed);

FIG. 5 is a cross-sectional schematic view of a prior art terminal assembly (deformation of the terminal housing);

FIG. 6 is a schematic cross-sectional view of a prior art terminal cover assembly (with a lug assembly located on the end cover);

FIG. 7 is a schematic cross-sectional view of a prior art terminal cover assembly (post assembly ejected from a mounting hole after being deformed by a force);

figure 8 is a schematic cross-sectional view of a terminal cover assembly provided by an embodiment of the present invention;

figure 9 is a schematic cross-sectional view of an end cap of a terminal cap assembly provided by an embodiment of the present invention;

FIG. 10 is a schematic cross-sectional view of a lug assembly provided by an embodiment of the present invention;

FIG. 11 is a schematic top view of a lug assembly provided by embodiments of the present invention;

FIG. 12 is a schematic structural diagram of a lug assembly provided by an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a limiting portion of the lug assembly according to an embodiment of the present invention.

FIG. 1-terminal housing; 2-end cap; 3-a limiting part; 4-sealing ring; 5-a first mating hole; 6-a second mating hole; 7-a sealing ring mounting groove; 8-a retainer ring; 9-installing the retainer ring in the groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1 to 13, the present invention provides a terminal cover assembly, including a terminal housing 1 and an end cover 2, wherein a limiting portion 3 is provided on a circumferential side wall of the terminal housing 1, a step structure is formed on an inner side surface of the end cover 2, which is matched with the terminal housing 1, and the limiting portion 3 contacts with the step structure to limit the terminal housing 1 from moving to one side outside the end cover 2. Referring to fig. 1 to 7, in the prior art, a horn mouth of a terminal housing 1 contacts an end cover 2 to limit the terminal housing 1 from separating from the end cover 2, so that the terminal housing 1 needs to have a certain thickness to satisfy compressive strength, and in addition, referring to fig. 4 to 7, in a terminal assembly of a conventional vehicle-mounted air conditioner compressor, when the internal pressure of the compressor is too high, the terminal assembly has a hidden danger of being ejected from an end cover mounting hole; the application provides a structure that new restriction terminal subassembly removed to one side outside end cover 2, set up spacing portion 3 promptly on terminal housing 1, spacing portion 3 cooperatees with the stair structure on end cover 2, when the terminal subassembly atress on the compressor, the power on terminal housing 1 transmits end cover 2 through spacing portion 3 on, thereby can effectively restrain terminal assembly to take place to warp and spout from end cover 2 to a certain extent.

As an optional implementation manner of the embodiment of the present invention, the terminal housing 1 may be formed by press, the thickness may not be too thick (because force is mainly transmitted through the limiting portion 3), the limiting portion 3 may be formed by machining, and then the limiting portion 3 is connected to the terminal housing 1, the limiting portion 3 and the terminal housing 1 may be welded together, and may be welded together by using a resistance welding process, so that the processing cost is reduced, and the compressive strength of the terminal assembly may be improved to a certain extent.

As an optional implementation manner of the embodiment of the invention, referring to fig. 8, the end cover 2 is provided with the seal ring 4, and the circumferential outer side wall of the limiting portion 3 is in contact with the seal ring 4, because the outer surface of the limiting portion 3 can be machined by a machining method, the precision and the roughness can be well ensured, so as to improve the sealing performance.

As an alternative implementation manner of the embodiment of the invention, referring to fig. 8-9, a first matching hole 5 and a second matching hole 6 are formed on the inner side surface of the end cap 2 matched with the terminal housing 1, the first matching hole 5 and the second matching hole 6 form a stepped hole, the first matching hole 5 is arranged on one side of the second matching hole 6 close to the outside of the end cap 2, and the diameter of the first matching hole 5 is smaller than that of the second matching hole 6; the circumferential side surface of the limiting part 3 is in sealing fit with the second matching hole 6, and the end surface of the limiting part 3 is in contact with the inner side surface of the end cover 2. Referring to fig. 8, the bell mouth of the terminal housing 1 is located in the second fitting hole 6 and does not contact with the hole wall of the second fitting hole 6, and when the terminal assembly is stressed on the compressor, the force on the terminal housing 1 is transmitted to the end cover 2 through the limiting part 3. A retainer ring 8 for limiting the position of the terminal housing 1 is arranged below the horn mouth, and the retainer ring 8 is arranged in a retainer ring mounting groove 9 arranged on the hole wall of the second matching hole 6.

As an alternative implementation manner of the embodiment of the present invention, referring to fig. 9, a sealing ring installation groove 7 is provided on a hole wall of the second matching hole 6, the sealing ring 4 can be installed in the sealing ring installation groove 7, and a distance can exist between the sealing ring installation groove 7 and the first matching hole 5.

As an optional implementation manner of the embodiment of the present invention, the limiting portion 3 is a circular ring structure, and the limiting portion 3 is sleeved on the terminal housing 1, referring to fig. 8, the limiting portion 3 may not protrude from an end surface of the terminal housing 1 on a side away from the bell mouth, and the limiting portion 3 may be a steel ring.