Stator enameled wire and terminal connecting device for vehicle-mounted electric scroll compressor

Abstract

The utility model discloses a stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor, which comprises a junction box provided with a cavity communicated with the outside of the junction box; the sealing plug is provided with an edge sealing part, a first sealing interface and a second sealing interface; the edge sealing part can be matched with and abut against the inner wall of the cavity of the junction box; and a wire, the outer wall of the wire located at the end portion can be placed in the second sealing interface and abuts against the inner wall of the second sealing interface, and the wire located in the second sealing interface is used for being connected with the wiring terminal in the first sealing interface. According to the utility model, an effective sealing system can be formed, an electrified body is effectively isolated from a refrigerant and water vapor, and the overall insulating property of the compressor is improved. In addition, the sealing effect on the wire can be achieved, good sealing performance can be achieved even if the wire is bent, and therefore safe and reliable connection is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle-mounted compressor, concretely is a kind of stator enameled wire and terminal connecting device for vehicle-mounted electric scroll compressor. BACKGROUND

[0002] With the rapid development of new energy vehicle market, vehicle-mounted electric scroll compressor demand is also amplified synchronously, current compressor electric part is added with POE oil and refrigerant, internal liquid water content gradually increases in operation process, because the enameled wire head of lead wire needs to remove paint and connect with metal terminal, existing terminal box cannot completely protect terminal and enameled wire head from being contacted by liquid, possibly leading to liquid infusion into terminal box, so that the safety of compressor is reduced. SUMMARY

[0003] In order to overcome the defects in the prior art, the utility model embodiment provides a stator enameled wire and terminal connecting device for vehicle-mounted electric scroll compressor, which is used to solve one or more of the above problems.

[0004] The application embodiment discloses a stator enameled wire and terminal connecting device for vehicle-mounted electric scroll compressor, which comprises: a terminal box having a cavity communicating with the outside of the terminal box; a sealing plug having an edge sealing portion capable of cooperating with the inner wall of the cavity of the terminal box and abutting, and a first sealing interface and a second sealing interface respectively located on both sides of the edge sealing portion, the first sealing interface and the second sealing interface are communicated, wherein the first sealing interface is used to accommodate a terminal; a lead wire, the outer wall of the lead wire at the end is placed in the second sealing interface and abuts with the inner wall of the second sealing interface, and the lead wire in the second sealing interface is used to connect with the terminal in the first sealing interface.

[0005] Further, the cross-sectional shape of the cavity perpendicular to its extension direction is rectangular, and the outer periphery of the edge sealing portion is a soft material.

[0006] Further, the outer periphery of the edge sealing portion has a first lip, a second lip and a third lip in the direction from the first sealing interface to the second sealing interface, respectively, wherein the outer periphery thickness of the first lip gradually increases in the direction from the first sealing interface to the second sealing interface, and the outer periphery thickness of the second lip and the third lip is the same as the maximum thickness of the first lip.

[0007] Further, there is an isolation groove between the first lip and the second lip, and between the second lip and the third lip, which is recessed to the inside of the sealing plug.

[0008] Further, the sealing plug is made of rubber.

[0009] Further, the junction box has a plurality of cavities arranged in a stepped manner, wherein an inner wall of a former cavity extends outwardly to form an outer wall of a latter cavity.

[0010] Further, the first sealing interface has a smaller inner diameter than the second sealing interface, and the sealing plug has a transition surface inside gradually reducing in cross-sectional area from the second sealing interface to the first sealing interface.

[0011] Further, the junction box has a protruding positioning portion protruding from the bottom surface of the bottom portion, and the junction box has a buckle portion extending in the same direction as the protruding positioning portion, and the protruding positioning portion and the buckle portion are used for fixing the junction box.

[0012] The utility model discloses the beneficial effect is as follows:

[0013] 1. By setting up the sealing plug between the wiring terminal and the wire, then connecting the sealing plug on the junction box, can constitute an effective sealing system, effectively insulate the electrified body from the refrigerant and the water vapor, improve the overall insulation performance of the compressor. In addition, through the connection of the second sealing interface and the outer wall of the wire, the sealing effect of the wire can be achieved, even if the wire is bent, the sealing performance is good, so as to realize safe and reliable connection.

[0014] 2. The connection effect of the sealing plug and the cavity is better, and the design of the plurality of lips also increases the sealing performance between the sealing plug and the cavity.

[0015] 3. The junction box can connect a plurality of wires and wiring terminals at the same time, thereby making the compatibility of the junction box better.

[0016] In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Fig. 1 It is a structure schematic view of a stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor in the embodiments of the utility model;

[0019] Fig. 2 is a structure schematic view of the junction box in the embodiment of the utility model;

[0020] Fig. 3 is a structure schematic view of the sealing plug in the first perspective view in the embodiment of the utility model;

[0021] Fig. 4 is a structure schematic view of the sealing plug in the second perspective view in the embodiment of the utility model;

[0022] The above figure reference: 1, junction box; 11, cavity; 12, convex positioning part; 13, buckle part; 2, sealing plug; 21, edge sealing part; 211, first lip; 212, second lip; 213, third lip; 214, isolation groove; 22, first sealing interface; 23, second sealing interface; 24, transition surface; 3, wire. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] As shown in Figs. 1 to 4 , a kind of stator enameled wire and terminal connecting device of vehicle-mounted electric scroll compressor of the embodiment, comprising:

[0025] Junction box 1, the junction box 1 inside can accommodate wiring terminal, so that the wiring terminal is located in the junction box 1 inside and isolated from outside, play the effect of protecting the wiring terminal.Junction box 1 has the cavity 11 with the communication of junction box 1 outside, the cavity 11 is used to accommodate sealing plug 2, so that after sealing plug 2 is inserted, the junction box 1 inside can be isolated from outside.

[0026] A sealing plug 2, the sealing plug 2 has a edge sealing part 21 which can cooperate with the inner wall of the cavity 11 of the terminal box 1 and abut, and a first sealing interface 22 and a second sealing interface 23 respectively located on both sides of the edge sealing part 21, the edge sealing part 21 cooperates with the cavity 11 refers to the size of the edge sealing part 21 is the same as or slightly larger than the size of the cavity 11, so as to realize the effect of abutting sealing, the edge sealing part 21 makes the sealing plug 2 can isolate the inside and outside of the terminal box 1 when the sealing plug 2 is placed in the cavity 11, thereby effectively preventing external liquid from entering the terminal box 1. The first sealing interface 22 and the second sealing interface 23 are communicated, wherein the first sealing interface 22 is used to accommodate a terminal, the first sealing interface 22 is used to make the terminal part placed therein, and the inner wall of the first sealing interface 22 abuts against the outer wall of the terminal, so that the terminal located inside the first sealing interface 22 is isolated from the outside, thereby protecting the terminal.

[0027] A wire 3, the outer wall of the wire 3 at the end can be placed in the second sealing interface 23 and abut against the inner wall of the second sealing interface 23, wherein the end of the wire 3 without paint is completely placed in the second sealing interface 23, the part of the wire 3 with paint is placed in the second sealing interface 23, and the paint outer wall thereof abuts against the inner wall of the second sealing interface 23, so that the end of the wire 3 is located in the second sealing interface 23, and the abutment of the paint and the second sealing interface 23 plays a role of isolating the end of the wire 3 from the outside, thereby protecting the wire 3 located in the second sealing interface 23. The wire 3 located in the second sealing interface 23 is used to connect with the terminal in the first sealing interface 22, so that the connection part of the wire 3 and the terminal is protected by the sealing plug 2 from contacting the outside, thereby effectively isolating the live body from the refrigerant and moisture.

[0028] In this embodiment, the terminal is first inserted into the first sealing interface 22, and then the terminal and the end of the wire 3 without paint are inserted into the second sealing interface 23, so that the terminal and the wire 3 are connected in the sealing plug 2, and then the edge sealing part 21 is placed on the inner wall of the cavity 11 of the terminal box 1, so that the sealing plug 2 abuts against the inner wall of the cavity 11 of the terminal box 1, thereby making the sealing plug 2 fix the terminal and the wire 3 in the terminal box 1. And the edge sealing part 21 isolates the inside of the terminal box 1 from the outside.

[0029] Through the above structure, by setting the sealing plug 2 between the terminal and the wire 3, and then connecting the sealing plug 2 on the terminal box 1, an effective sealing system can be formed, which effectively isolates the live body from the refrigerant and water vapor, and improves the overall insulation performance of the compressor. In addition, through the connection of the second sealing interface 23 and the outer wall of the wire 3, the sealing effect of the wire 3 can be achieved, and good sealing can be achieved even if the wire 3 is bent, thereby realizing safe and reliable connection.

[0030] Specifically, the cross-sectional shape of the cavity 11 perpendicular to its extension direction is rectangular, and the outer periphery of the edge sealing part 21 is a soft material, so that when the sealing plug 2 moves relative to the cavity 11, the outer periphery of the edge sealing part 21 can be deformed and move relative to the cavity 11, and then when the sealing plug 2 is stationary relative to the cavity 11, the edge sealing part 21 is in complete abutment with the inner wall of the cavity 11, thereby facilitating the installation of the sealing plug 2 and achieving the effect of preventing external liquid from leaking into the terminal box 1. Preferably, the sealing plug 2 is made of rubber, and of course, in other alternative embodiments, the sealing plug 2 can also be made of other soft materials.

[0031] Specifically, the outer periphery of the edge sealing part 21 has a first lip 211, a second lip 212 and a third lip 213 in the direction from the first sealing interface 22 to the second sealing interface 23, wherein the outer periphery thickness of the first lip 211 gradually increases in the direction from the first sealing interface 22 to the second sealing interface 23, and the outer periphery thickness of the second lip 212 and the third lip 213 is the same as the maximum thickness of the first lip 211. The first lip 211 is used to guide the sealing plug 2 during installation in the cavity 11, thereby making the sealing plug 2 easier to install in the cavity 11, and the second lip 212 and the third lip 213 can be in complete abutment with the inner wall of the cavity 11, thereby requiring more force to disengage the sealing plug 2 from the cavity 11 than during installation, thereby making the connection of the sealing plug 2 and the cavity 11 better, and the design of multiple lips also increases the sealing between the sealing plug 2 and the cavity 11.

[0032] Specifically, the first lip 211 and the second lip 212, the second lip 212 and the third lip 213 have isolation grooves 214 recessed to the inside of the sealing plug 2, so that the first lip 211, the second lip 212 and the third lip 213 can be respectively abutted with the inner wall of the cavity 11, and the air in the isolation groove 214 can also support the first lip 211, the second lip 212 and the third lip 213 after the sealing plug 2 is installed to the inside of the cavity 11, thereby achieving better sealing effect than a single layer of lip.

[0033] Specifically, the junction box 1 has a plurality of cavities 11, and the plurality of cavities 11 are distributed in a stepped manner, wherein one inner wall of a previous cavity 11 adjacent to a subsequent cavity 11 extends outward to form an outer wall of the subsequent cavity 11. Thus, the junction box 1 can simultaneously connect a plurality of wires 3 and terminals, thereby making the compatibility of the junction box 1 better.

[0034] Specifically, the inner diameter of the first sealing interface 22 is smaller than the inner diameter of the second sealing interface 23, and the sealing plug 2 has a transition surface 24 inside the sealing plug 2, which gradually reduces the cross-sectional area from the second sealing interface 23 to the first sealing interface 22. Thus, the wire 3 and the terminal can be connected around the transition surface to achieve the effect of fixing the end portion of the wire 3.

[0035] Specifically, the junction box 1 has a protruding positioning portion 12 protruding from the bottom surface thereof, and the junction box 1 has a buckle portion 13 extending in the same direction as the protruding positioning portion 12, and the protruding positioning portion 12 and the buckle portion 13 are used to fix the junction box 1, wherein the protruding positioning portion 12 is used to correspond to a corresponding clamping groove, and the buckle portion 13 can be connected with a corresponding buckle groove to achieve the effect of quick installation and disassembly of the junction box 1.

[0036] The principle and implementation mode of the embodiments are described in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, for those skilled in the art, according to the idea of the utility model, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation of the utility model.

Claims

1. A stator enameled wire and terminal connection device for a vehicle-mounted electric scroll compressor, characterized in that, include: A junction box having a cavity communicating with the outside of the junction box; A sealing plug having an edge sealing portion that can mate with and abut against the inner wall of the junction box, and a first sealing interface and a second sealing interface located on both sides of the edge sealing portion, wherein the first sealing interface and the second sealing interface are connected, and the first sealing interface is used to accommodate a terminal block. The outer wall of the wire located at the end can be placed inside the second sealing interface and abut against the inner wall of the second sealing interface. The wire located inside the second sealing interface is used to connect to the terminal block inside the first sealing interface.

2. The stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor according to claim 1, characterized in that, The cavity has a rectangular cross-sectional shape perpendicular to its extension direction, and the outer periphery of the edge sealing part is made of soft material.

3. The stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor according to claim 2, characterized in that, The outer periphery of the edge sealing portion has a first lip, a second lip, and a third lip in the direction from the first sealing interface to the second sealing interface, wherein the outer periphery thickness of the first lip gradually increases in the direction from the first sealing interface to the second sealing interface, and the outer periphery thickness of the second lip and the third lip is the same as the maximum thickness of the first lip.

4. The stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor according to claim 3, characterized in that, There are isolation grooves between the first lip and the second lip, and between the second lip and the third lip, which are recessed into the sealing plug.

5. The stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor according to claim 4, characterized in that, The sealing plug is made of rubber.

6. The stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor according to claim 1, characterized in that, The junction box has multiple cavities, which are arranged in a stepped manner. The inner wall of the adjacent cavity of the previous cavity extends outward to form the outer wall of the next cavity.

7. The stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor according to claim 1, characterized in that, The inner diameter of the first sealing interface is smaller than that of the second sealing interface, and the sealing plug has a transition surface whose cross-sectional area gradually decreases from the second sealing interface to the first sealing interface.

8. The stator enameled wire and terminal connecting device for a vehicle-mounted electric scroll compressor according to claim 1, characterized in that, The junction box has a protruding positioning part at the bottom that protrudes from its bottom surface, and the side of the junction box has a snap-fit ​​part that extends in the same direction as the protruding positioning part. The protruding positioning part and the snap-fit ​​part are used to fix the junction box.

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