WO2024021561A1

WO2024021561A1 - Junction box assembly and parking air conditioner containing same

Info

Publication number: WO2024021561A1
Application number: PCT/CN2023/074899
Authority: WO
Inventors: 贺秋霞; 张龙; 张振富; 赵昕
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2022-07-28
Filing date: 2023-02-08
Publication date: 2024-02-01
Also published as: CN115157963A

Abstract

A junction box assembly (300). A base component configured with the junction box assembly (300) is configured with a wire harness (200), and the wire harness (200) comprises an incoming-wire portion and an outgoing-wire portion. The junction box assembly (300) comprises: a box body, which comprises a first portion (31) and a second portion (32); and a wiring terminal (33), wherein the wiring terminal (33) is arranged in a mounting cavity formed by the first portion (31) and the second portion (32), and the wiring terminal (33) comprises an incoming-wire terminal (331) and an outgoing-wire terminal (332), which are respectively used for connecting an incoming wire and an outgoing wire. At least the outgoing-wire portion is configured with a wire clip (34). Therefore, the wiring terminal can be flexibly mounted and dismounted during maintenance and assembly, and the wiring terminal and the wire harness connected thereto can be fixed. Moreover, by providing the wire clip on the junction box, the wire clip can effectively fix and clamp, at an outgoing-wire port, the wire harness connected to the wiring terminal, thereby controlling the direction of the outgoing wire. In addition, the present invention further relates to a parking air conditioner comprising the junction box assembly.

Description

Terminal box assembly and parking air conditioner containing it

This application claims priority to Chinese patent application 202210901118.6, which was filed on July 28, 2022 and has an invention title of "Junction box assembly and parking air conditioner containing the same". The entire content of the above Chinese patent application is incorporated into this application by reference. .

Technical field

The present invention relates to the field of wire harness connection devices, and in particular to a junction box assembly and a parking air conditioner containing the same.

Background technique

Taking automobiles as an example, with the continuous development of automobile technology, components related to more functions are introduced into automobiles. Take the parking air conditioner introduced in automobiles, which is mainly used to regulate the air temperature in the cabin space, as an example. Parking air conditioners are usually equipped with complex circuits, and wiring components are often required to connect, organize and protect each group of circuits.

The wiring components on the market tend to be large junction box structures, and need to be equipped with drivers and terminals inside the box. This structure not only takes up most of the installation space on the parking air conditioner, but also often requires higher production costs. . In addition, some wiring components adopt the form of a single-structure junction box fixed to the wiring base plate. Since the junction box body only has a simple opening for the wiring harness, it cannot effectively limit or adjust the direction of the wiring harness, which may cause the wiring harness and terminals to be damaged. Folding, movement or even damage may occur.

Accordingly, a new technical solution is needed in this field to solve the above problems at least to a certain extent.

Contents of the invention

The present invention aims to solve the above technical problems at least to a certain extent, that is, to solve the problem that the existing wiring assembly "occupies most of the installation space on the parking air conditioner and often requires higher production costs" (junction box) or "cannot effectively ground to limit or adjust the direction of the wire harness, you can "Technical problems that may cause the wiring harness and terminal blocks to fold, move or even be damaged" (junction box).

In a first aspect, the present invention provides a junction box assembly. The basic component of the junction box assembly is configured with a wire harness. The wire harness includes an incoming line part and an outgoing line part. The junction box assembly includes a box body, which includes The first part and the second part; and a terminal block, which is arranged in the installation cavity formed by the first part and the second part, and the terminal block has an incoming line terminal and an outgoing line terminal for connecting the incoming line and the outgoing line respectively. ; Wherein, at least the outlet portion is equipped with a wire clip.

When the above technical solution is adopted, the present invention can accommodate and fix the wiring terminals through the installation cavity formed by the first part and the second part of the box. The wiring terminals can be flexibly installed and disassembled during maintenance and assembly, and can be fixed. The terminal blocks and the connected wire harness are connected to each other, so as to avoid the positional deviation of the above-mentioned terminal blocks and wire harness. In addition, the setting of the wire clamp on the junction box can effectively fix and clamp the wire harness connected to the terminal block at the outlet position, thereby effectively guiding the direction of the outlet wire.

It can be understood that those skilled in the art can determine the specific form, number, and location of the wire clips according to actual needs. For example, the wire clips can be a single structure formed in one piece, or they can include multiple wire clips that can be connected to each other or not. structure. Correspondingly, a wire clamp can be added at the wire inlet of the junction box assembly to fix the wire harness at the wire inlet of the terminal block and control the direction of the wire harness at this location.

In a preferred technical solution of the above junction box assembly, the first part includes a first sub-part and a second sub-part, wherein the first sub-part and the second part form the installation cavity, and the wire A clip is provided on said second sub-section.

In the case of adopting the above technical solution, a specific construction method of the first part is given. It can be understood that those skilled in the art can flexibly select the material, size, number, structure, connection method, etc. of the first sub-part and the second part according to actual needs. For example, the two forming the installation cavity can be integrally formed or connected to each other, wherein the connection method can be direct connection (such as through screws, buckles, etc.) or indirect connection (such as through internal structural panels). In addition, the materials, sizes, numbers and structures of the two can be the same or different. As long as they can be combined with each other to form the above-mentioned installation chamber, those skilled in the art can flexibly select and adjust. For example, a second sub-section can be added to the other end of the junction box assembly to increase the clamp's Installable location.

In addition, the above technical solution also provides a specific installation position of the wire clip.

In a preferred technical solution of the above junction box assembly, the second sub-part is provided with or formed with a first limiting structure for limiting the position of the wire clip.

When the above technical solution is adopted, it is beneficial to realize the rapid positioning of the wire clip, which is expected to improve the assembly efficiency of the junction box assembly.

It can be understood that those skilled in the art can determine the structural form and number of the first limiting structures and their placement positions on the second sub-part according to actual needs. For example, positioning posts are provided at diagonal positions of the second sub-part and positioning holes are provided at corresponding positions of the wire clip. The two cooperate with each other to achieve rapid positioning of the wire clip.

In a preferred technical solution of the above junction box assembly, the first limiting structure is a first limiting rib provided on or formed on the second sub-part, wherein the first limiting rib is on the second sub-part. The upper portion of the sub-section defines a first mounting area corresponding to the cord clip.

When the above technical solution is adopted, a specific structural form of the first limiting structure is provided.

In a preferred technical solution of the above junction box assembly, the junction box assembly includes a connecting member by which the wire clamp is fixed to the second sub-section.

When the above technical solution is adopted, the connecting member fixes the wire clip to the second sub-part, ensuring that the wire clip can be effectively and reliably fixed on the junction box, and avoiding displacement when the wire clip or the fixed wire harness is subjected to tension. It also facilitates the installation and disassembly of the wire clamp structure without affecting the stability of the assembly.

It can be understood that those skilled in the art can determine the structural form and number of the connecting members and the specific form of fixing the wire clip to the second sub-part according to the actual situation. For example, buckles can be provided on the edge of the second sub-part of the junction box, and clip slots are provided around the wire clip, thereby achieving effective fixation of the wire clip structure.

In a preferred technical solution of the above-mentioned junction box assembly, the first part and/or the second part are provided with or formed with a reserved hole capable of freely accommodating at least a part of the outlet part.

When the above technical solution is adopted, the wire harness above the junction box can pass through the reserved hole and be tightened by a belt-like structure (such as a quick-tightening tape) to achieve the purpose of fixing and organizing the wire harness. Ensures the cleanliness and orderliness of basic components.

It can be understood that those skilled in the art can determine the structure, number and location of the reserved holes according to actual needs. For example, the reserved holes can be set as a single structure or as a combination of multiple reserved holes. The number and position of the reserved holes can be reasonably adjusted according to the direction and quantity of the wire harness above the junction box. .

In the preferred technical solution of the above parking air conditioner, the parking air conditioner includes any of the aforementioned junction box components.

It can be understood that the parking air conditioner has the technical effects of any of the aforementioned junction box components, which will not be described again here.

In a preferred technical solution of the above junction box assembly, the basic component is a chassis corresponding to the parking air conditioner.

In the case of adopting the above technical solution, a specific structural form of the basic component is provided when the junction box assembly is installed on the parking air conditioner.

In a preferred technical solution of the above junction box assembly, the chassis is provided with a second limiting structure corresponding to the side of the junction box close to the chassis.

When the above technical solution is adopted, it is beneficial to the rapid positioning of the junction box assembly, which is expected to improve the installation efficiency of the junction box assembly on the chassis.

In the preferred technical solution of the above-mentioned junction box assembly, the chassis itself has water-blocking ribs, and the second limiting structure is a second limiting rib provided on or formed on the chassis, wherein the water-blocking ribs and The second limiting rib defines a second installation area on the chassis corresponding to the junction box.

When the above technical solution is adopted, a specific structural form of the second limiting structure is provided, and a specific formation method of the second installation area is also provided. Specifically, the second installation area for limiting is formed through the chassis' own structure and the second limiting structure, so that the water retaining ribs achieve the limiting function. The second installation area serves as a limiting function. While improving the assembly efficiency by cooperating with the installation components, it can also effectively prevent the junction box assembly from positional deviation when it is impacted or squeezed by other components, thereby ensuring Reliability of the position of the junction box assembly on the basic component.

Description of drawings

The preferred embodiments of the present invention will be described below with reference to the parking air conditioner and the accompanying drawings, in which:

Figure 1 is a schematic diagram of the assembly environment of the junction box assembly of the parking air conditioner according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the internal structure of the junction box assembly of the parking air conditioner according to an embodiment of the present invention;

Figure 3 is a schematic structural diagram of the junction box assembly of the parking air conditioner according to an embodiment of the present invention.

List of reference signs

100. Chassis;

11. Second limiting rib A; 12. Second limiting rib B; 13. Water retaining rib; 14. First screw column; 15. Second screw column;

200. Wiring harness;

300. Junction box components;

31. Part One;

311. First subpart;

3111. The first screw; 3112. The second screw; 3113. The third screw column; the fourth screw column; 3115. The first protrusion; 3116. The second protrusion;

312. Second subpart;

3121. First limiting rib A; 3122. First limiting rib B;

32. Part 2;

321. Reserved hole; 322. Third screw; 323. Fourth screw; 324. First buckle; 325. Second buckle;

33. Terminals;

331. Incoming terminal; 332. Outgoing terminal; 333. Fifth screw; 334. Sixth screw;

34. Cable clamp;

341. The fifth screw; 342. The sixth screw;

400. Air duct foam.

Detailed ways

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. For example, although this embodiment introduces the junction box assembly of the present invention in conjunction with the chassis on the parking air conditioner as a basic component, this is not intended to limit the scope of the present invention. Without departing from the principle of the present invention, the junction box assembly of the present invention is Those skilled in the art can apply the present invention to other basic components that need to fix and protect wire harnesses, such as wire harnesses in other positions of the vehicle except parking air conditioners, such as home air conditioners and other equipment.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "diagonal" and other terms indicating directions or positional relationships are based on the directions shown in the drawings. or positional relationship, which is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, it should be noted that in the description of the present invention, unless otherwise clearly stated and limited, the terms "installation", "setting" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a fixed connection. It is a detachable connection or an integral connection; it can be directly connected, or indirectly connected through an intermediary, or it can be internal connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

First refer to FIG. 1 , which is a schematic diagram of the assembly environment of the junction box assembly of the parking air conditioner according to an embodiment of the present invention. Parking air conditioning includes a compressor, condenser, electronic expansion valve and evaporator that form a refrigerant circulation loop. Among them, the condenser exchanges heat with the air in the external environment, and the evaporator exchanges heat with the air in the cabin space of the vehicle's cockpit to meet the cooling needs of the cabin space. As shown in Figure 1, the chassis 100 of the parking air conditioner is provided with air duct foam 400 covering the outside of the evaporator, water retaining ribs 13 and several wire harnesses 200 (see Figure 3). The junction box assembly 300 of the present invention (see Figure 3) is also provided on the chassis, and is positioned and connected to the chassis 100 through the second limiting structure and the corresponding fixed structure provided on the chassis 100. in a possible In a possible implementation, the second limiting structure provided on the chassis 100 is a limiting rib (second limiting rib). In this example, the second limiting rib mainly includes a second limiting rib A11 and a second limiting rib. The ribs B12 jointly define a second installation area for the junction box assembly 300 . Among them, the second limiting rib A11 and the second limiting rib B12 have an "L"-shaped structure. When the junction box assembly is placed on the chassis, the first limiting ribs (11, 12) are arranged at the same position as the junction box assembly 300. A subsection 311 (see Figure 3) is positioned diagonally adjacent to the chassis 100, thereby limiting movement of the junction box assembly. The size and length of the first limiting rib can be flexibly adjusted without affecting the placement of the junction box components and the structure of the chassis. The second limiting structure and the self-structured water retaining ribs 13 of the chassis 100 jointly define the second installation area of the junction box assembly to achieve accurate positioning.

In addition, in this example, the fixing structure provided on the chassis 100 includes two screw posts, respectively denoted as the first screw post 14 and the second screw post 15 . The junction box assembly 300 is connected to the corresponding structure by means of the two screw posts. Fit to achieve reliable fixation on the chassis.

In addition, those skilled in the art can understand that the structural form, number and position of the second limiting structure (such as the second limiting rib) and the fixing structure (such as the first and second screw columns) are not limited. , for example, those skilled in the art can change the form of the fixing structure from screw fixation to buckle fixation. One or more buckles are provided on the side of the junction box assembly 300 close to the chassis 100, and the corresponding buckles are provided at corresponding positions of the chassis. One or more square holes corresponding to the buckles to achieve mutual fastening. In addition, second limiting ribs can also be added to correspond to the four sides of the junction box assembly 300, which can also achieve rapid positioning during installation.

Referring now to Figures 2 and 3, Figure 2 is a schematic diagram of the internal structure of the junction box assembly of the parking air conditioner according to one embodiment of the present invention. Figure 3 is a schematic diagram of the junction box assembly of the parking air conditioner according to one embodiment of the present invention. Schematic. As shown in FIGS. 2 and 3 , the junction box assembly 300 mainly includes a first part 31 , a second part 32 and a terminal 33 . The first part 31 mainly includes a first sub-part 311 and a second sub-part 312 . Among them, the first sub-part 311 is in contact with the chassis 300 of the parking air conditioner and is connected and fixed to each other. Specifically, the first sub-part 311 is provided with holes corresponding to the first and second screw posts of the chassis 300, and the first screw 3111 and the second screw 3112 respectively pass through the corresponding holes and the first screw from top to bottom. The post 14 and the second screw post 15 are tightened together, thereby fixing the junction box assembly 300 to the chassis 300 .

In one possible implementation, the second sub-part 312 of the junction box assembly 300 is provided with a first limiting structure, such as a first limiting rib structure to position the wire clamp 34 . In this example, the first limiting rib includes two separate sections, which are respectively recorded as the first limiting rib A3121 and the first limiting rib B3122. As shown in Figure 1, the two sections of limiting ribs (3121, 3122 ) is a "U"-shaped structure and is provided at both ends of the second sub-part 312. The distance between the two sections of limiting ribs (11, 12) is set to a length that can just accommodate the wire clip 34. In addition, holes are also provided on the second sub-part 312 in order to fix the wire clip on the second sub-part 312 through the connecting member.

It can be understood that those skilled in the art can flexibly adjust the structural form, number and position of the first limiting member (such as the first limiting rib) according to the actual situation. For example, according to the size of the wire clamp 34, The first limiting ribs are arranged on the four sides of the wire clamp 34, and buckle structures are provided on the left and right sides. Based on this, the purpose of quickly positioning and effectively fixing the wire clamp 34 can be achieved at the same time.

Continuing to refer to FIG. 2 , the junction box assembly 300 is also provided with wiring terminals 33 , which mainly include incoming terminals 331 and outgoing terminals 332 , respectively used to connect the wire harness 200 located at the inlet and outlet of the junction box assembly 300 . In order to ensure the internal stability of the junction box assembly 300 when subjected to impact or collision, the terminal block 33 can be fixed on the first sub-section 311 of the first section 31 . In this example, the fifth screw 333 and the sixth screw 334 are respectively connected to the holes located at the opposite corners of the terminal 33 and the first sub-part 311, and the terminal 33 is effectively fixed to the first sub-part 311 by tightening to avoid wiring. Terminal 33 is misaligned.

Continuing to refer to FIG. 3 , in one possible implementation, the circumferential edge of the first sub-portion 311 of the first part 31 of the junction box assembly 300 is tightened, and first protrusions 3115 and second protrusions are provided on both sides. Starting from 3116. Based on this, the second part 32 of the junction box assembly 300 can be coupled with the first sub-part 311 of the first part 31, and the first buckle 324 and the second buckle 324 are provided on both sides of the circumferential position of the second part, After the two parts (32, 311) are aligned, the first buckle 324 and the second buckle 324 can be aligned and engaged with the first protrusion 3115 and the second protrusion 3116 on the first sub-part 311, This allows the two parts to be connected to each other.

In addition, a third screw post 3113 and a fourth screw post 3114 are provided at diagonal positions of the first sub-part of the first part 31. After the two parts (32, 311) are fastened together, the third screw 322 and the fourth screw post 3114 are used. The screws 323 pass through the second part 32 and are tightened with the third and fourth screw columns respectively to achieve further fixation.

In this embodiment, the wire clip 34 is disposed in the first installation area of the second sub-portion 312 defined by the first limiting ribs (such as the first limiting ribs A3121 and the first limiting ribs B3122). At the outlet position of the junction box assembly 300, clamp the wire harness 200 at this position. The wire clamp 34 and the second sub-section 312 are connected and fixed together by fifth screws 341 and sixth screws 342 to fix the wire clamp 34 and the clamped wire harness 200 to prevent the wire harness 200 from being displaced due to tension.

It can be understood that those skilled in the art can flexibly adjust the fixing structure, quantity and position of the screws used in this embodiment according to actual needs, for example, they can be adjusted to an integrally formed fixing form.

In addition, in the drawings of this embodiment, a reserved hole 321 is provided on the surface of the second part 32. The wire harness 200 can pass through this hole, and a quick-tightening tape is used to tighten the wire harness above the junction box assembly 300 to secure the wire harness. , the purpose of line management. Those skilled in the art can also add reserved holes in other positions of the junction box, such as the first part, to organize and store the wire harnesses at various positions.

It can be seen that in the junction box assembly of the present invention, the first sub-part and the second part of the first part of the box form an installation cavity, which can accommodate and fix the terminals and the connected wire harness. The setting of the wire clamp on the junction box can fix and clamp the wire harness at the outlet, thereby effectively guiding the direction of the outlet wire. In addition, the arrangement of the first limiting structure and the second limiting structure is conducive to the rapid positioning of each component, which is expected to improve the assembly efficiency of the junction box assembly. The reserved hole structure in the second part makes full use of the installation space, so that the outside of the junction box assembly can organize the wiring, ensuring that the basic components are clean and orderly.

It should be noted that the above preferred embodiments are only used to illustrate the principles of the present invention and are not intended to limit the scope of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above settings so that the present invention can be applied to more specific application scenarios.

Of course, the above-mentioned alternative implementations, as well as the alternative implementations and the preferred implementations, can also be used in cross-combination, so as to combine new implementations to suit more specific application scenarios.

Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features of different embodiments are meant to be within the scope of the invention. within and form different embodiments. Within the claims of the invention, any of the claimed embodiments may be used in any combination.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and technical solutions after these modifications or substitutions will fall within the protection scope of the present invention.

Claims

A junction box assembly, characterized in that the basic component of the junction box assembly is equipped with a wire harness, the wire harness includes an incoming wire part and an outgoing wire part, and the junction box assembly includes:

A box body including a first part and a second part; and

A terminal block is provided in the installation cavity formed by the first part and the second part, the terminal block has an incoming line terminal and an outgoing line terminal for connecting the incoming line and the outgoing line respectively;

Wherein, at least the outlet portion is equipped with a wire clip.
The junction box assembly of claim 1, wherein said first portion includes a first sub-portion and a second sub-portion,

Wherein, the first sub-part and the second part form the installation cavity, and the wire clip is provided on the second sub-part.
The junction box assembly according to claim 2, wherein the second sub-part is provided with or formed with a first limiting structure for limiting the position of the wire clip.
The junction box assembly according to claim 3, wherein the first limiting structure is a first limiting rib provided on or formed on the second sub-part,

Wherein, the first limiting rib defines a first installation area corresponding to the wire clip on the second sub-part.
The junction box assembly of claim 4, wherein the junction box assembly includes a connecting member by which the wire clip is secured to the second subsection.
The junction box assembly according to claim 1, wherein the first part and/or the second part are provided with or formed with a reserved hole capable of freely receiving at least a part of the outlet part.
A parking air conditioner, characterized in that the parking air conditioner includes the following components as claimed in claims 1 to 6 The junction box assembly of any one of the above.
The junction box assembly according to claim 7, wherein the basic component is a chassis of the parking air conditioner.
The junction box assembly according to claim 8, wherein the chassis is provided with a second limiting structure corresponding to the side of the junction box close to the chassis.
The junction box assembly according to claim 9, wherein the chassis itself has water retaining ribs, and the second limiting structure is a second limiting rib provided on or formed on the chassis,

Wherein, the water blocking rib and the second limiting rib define a second installation area on the chassis corresponding to the junction box.