Full contactless module

Abstract

The utility model relates to a full contact point module, contain by the shell of the upper half casing (1) and lower half casing (2) constitute, the splicing contact surface between upper half casing (1) and lower half casing (2) is provided with sealing ring (5), for static contact piece (3) after the sealing plug (4) of suitably inserting the shell, the one end of push rod (7) that stretches out upper half casing (1) is provided with sealing sleeve (8). The utility model relates to a full contact point module, has excellent waterproof dustproof and other sealing protection performance.

Description

Technical Field

[0001] This utility model relates to a contact module, and more particularly to a contact module with high protective sealing performance, belonging to the field of electrical technology. Background Technology

[0002] Contact modules are commonly used switch wiring devices in the electrical industry. For example, Phoenix Contact's Chinese patent CN201922340026.1, "Contact Module," utilizes spring contacts for quick wiring. However, in applications requiring high sealing, this structure offers poor sealing, allowing rainwater and dust to easily enter and affect electrical performance. To address this, Chinese patents, such as CN202123206694.9, "A Sealed Contact Module Structure," use screw wiring instead of the spring contact quick-connect structure, thus sealing the stationary contact plate where the screws are installed to improve sealing performance. However, both of these structures use conventional front-to-back assembly of the housing, while the contact module is a sheet structure with a large surface area and thin thickness. This results in a large contact area at the mating surfaces, which is detrimental to sealing. Furthermore, the thinness limits the addition of reinforcement structures and the feasibility of adding sealing grooves and sealing rings at the contact points. Consequently, its sealing performance is generally poor and cannot meet the requirements of harsh working conditions such as mines and outdoor environments. Therefore, there is an urgent need to develop a fully protective contact module with higher sealing performance. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a fully protective contact module with higher sealing performance.

[0004] The purpose of this utility model is achieved as follows:

[0005] A fully anti-contact module includes a housing consisting of an upper half-shell and a lower half-shell, with a sealing ring provided between the splicing contact surfaces of the upper and lower half-shells; a sealing plug is fitted onto the stationary contact piece and then inserted into the housing; a sealing sleeve is fitted onto the end of the push rod extending out of the upper half-shell.

[0006] Preferably, the side of the lower housing is provided with a socket for inserting a stationary contact piece, and a sealing plug is embedded in the socket.

[0007] Preferably, the sealing plug is provided with a strip around its perimeter, and the strip is inserted into a groove on the wall of the insertion hole.

[0008] Preferably, the upper and lower shells are tightly connected by a snap-fit ​​connection.

[0009] Preferably, the top surface of the lower half shell is provided with a slot, and the front and rear sides of the upper half shell are provided with sliding grooves for inserting the slot. The groove wall of the sliding groove is provided with a fastener, which slides into the slot of the slot.

[0010] Preferably, the lower end of the fastener is a sloping surface and the upper end is a right-angled surface.

[0011] Preferably, a sealing groove is provided on the end face of the lower half shell, and a sealing ring is embedded in the sealing groove.

[0012] Preferably, the push rod has an annular connecting groove at one end extending from the upper housing, and a connecting cylinder is connected to the through hole in the upper housing for the push rod to be inserted. The upper part of the sealing sleeve is embedded in the connecting groove, and the lower part is embedded between the shoulder of the connecting cylinder and the top surface of the upper housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention achieves comprehensive waterproofing and dustproofing by sealing the stationary contact piece, sealing the push rod with a sealing sleeve, and sealing the joint between the upper and lower shells with a sealing ring. Furthermore, the modification from a front-to-back cylindrical assembly to a top-to-bottom assembly not only reduces the contact area during assembly and the sealing area, but also improves the sealing effect (compared to the conventional front-to-back assembly, the top-to-bottom assembly with snap-fit ​​grooves is more convenient, has a larger area ratio, and provides a better seal). It also allows for quick and tight snap-fit ​​engagement through the groove and snap-fit ​​components. In summary, this invention provides all-around waterproof and dustproof protection and is quicker to assemble. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a fully contact-proof module according to the present invention.

[0016] Figure 2 This is a cross-sectional view of a fully contact-proof module according to the present invention.

[0017] Figure 3 This is a schematic diagram illustrating the explosion effect of a fully contact-proof module according to this utility model.

[0018] in:

[0019] Upper half shell 1, lower half shell 2, stationary contact piece 3, sealing plug 4, sealing ring 5, moving contact piece 6, push rod 7, sealing sleeve 8;

[0020] Connecting cylinder 1.1, fastener 1.2;

[0021] 2.1 Socket; 2.2 Sealing groove; 2.3 Slot;

[0022] Inlay strip 4.1;

[0023] Connection slot 7.1. Detailed Implementation

[0024] See Figures 1-3 This utility model relates to a fully contact-proof module, comprising a housing consisting of an upper housing 1 and a lower housing 2. The lower housing 2 has a socket 2.1 on its side for inserting a stationary contact piece 3, and a sealing plug 4 is fitted onto the stationary contact piece 3. The sealing plug 4 is embedded in the socket 2.1 (furthermore, the sealing plug 4 is surrounded by insert strips 4.1, which are inserted into grooves on the wall of the socket 2.1). The upper housing 1 and the lower housing 2 are tightly connected by a snap-fit ​​connection, and a sealing ring 5 is provided between the splicing contact surfaces of the upper housing 1 and the lower housing 2. Specifically, a slot 2.3 is vertically installed on the front side of the top surface of the lower half shell 2. At the same time, sliding grooves for inserting the slot 2.3 are provided on the front and rear sides of the upper half shell 1. A fastener 1.2 is provided on the groove wall. The lower end of the fastener 1.2 is a sloping surface and the upper end is a right angle surface. The fastener 1.2 is embedded in the slot of the slot 2.3. During the insertion of the slot 2.3 into the sliding groove, the sloping surface guides the fastener 1.2 to slide into the slot of the slot 2.3, while the right angle surface of the upper end of the fastener 1.2 acts as a limit to prevent the fastener 1.2 from coming out of the slot of the slot 2.3. The cooperation between the fastener 1.2 and the slot 2.3 achieves a fast and tight splicing. Furthermore, a sealing groove 2.2 is provided on the end face of the lower half shell 2, and the sealing ring 5 is embedded in the sealing groove 2.2. Thus, when the upper half shell 1 and the lower half shell 2 are assembled, the sealing ring 5 can enhance the sealing effect on the contact surface.

[0025] Meanwhile, to improve the sealing effect, the push rod 7 inserted into the upper housing 1 also needs to be sealed. The push rod 7 pushes the moving contact piece 6 located inside the housing, thereby causing the moving contact on the moving contact piece 6 to close or separate from the stationary contact on the stationary contact piece 3. A sealing sleeve 8 is fitted on the end of the push rod 7 that extends out of the upper housing 1 for sealing. Specifically, the end of the push rod 7 that extends out of the upper housing 1 is provided with a ring-shaped connecting groove 7.1. At the same time, a connecting cylinder 1.1 is connected to the through hole in the upper housing 1 for the push rod 7 to be inserted. The cross-section of the connecting cylinder 1.1 is "「" shaped, that is, the top of the connecting cylinder 1.1 is provided with a shoulder. The sealing convex ring of the lower inner wall of the sealing sleeve 8 fitted on the push rod 7 is placed between the shoulder of the connecting cylinder 1.1 and the top surface of the upper housing 1. The upper aperture of the sealing sleeve 8 is narrowed and embedded in the connecting groove 7.1, thereby achieving the sealing treatment of the push rod 7 through the sealing sleeve 8.

[0026] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A fully contact-proof module, characterized in that: It includes a housing consisting of an upper half housing (1) and a lower half housing (2), with a sealing ring (5) provided between the splicing contact surfaces of the upper half housing (1) and the lower half housing (2); a sealing plug (4) is fitted on the stationary contact piece (3) and then inserted into the housing; a sealing sleeve (8) is fitted on one end of the push rod (7) that extends out of the upper half housing (1).

2. The fully contact-protected module according to claim 1, characterized in that: The lower half of the housing (2) has a socket (2.1) for inserting a stationary contact piece (3) on its side, and a sealing plug (4) is embedded in the socket (2.1).

3. The fully contact-protected module according to claim 2, characterized in that: The sealing plug (4) is surrounded by inserts (4.1), which are inserted into grooves on the wall of the insertion hole (2.1).

4. The fully contact-protected module according to claim 1, characterized in that: The upper shell (1) and the lower shell (2) are tightly connected by a snap-fit ​​connection.

5. The fully contact-protected module according to claim 4, characterized in that: The top surface of the lower shell (2) is provided with a slot (2.3) that is vertically upward. The front and rear sides of the upper shell (1) are provided with a sliding groove for the slot (2.3) to be inserted. A fastener (1.2) is provided on the groove wall of the sliding groove. The fastener (1.2) slides into the slot of the slot (2.3).

6. The fully contact-protected module according to claim 5, characterized in that: The lower end of the fastener (1.2) is a sloping surface, and the upper end is a right-angled surface.

7. The fully contact-protected module according to claim 1, characterized in that: A sealing groove (2.2) is provided on the end face of the lower half shell (2), and the sealing ring (5) is embedded in the sealing groove (2.2).

8. The fully contact-protected module according to claim 1, characterized in that: The push rod (7) has a ring-shaped connecting groove (7.1) on one end of the upper half shell (1). A connecting cylinder (1.1) is connected to the through hole of the upper half shell (1) into which the push rod (7) is inserted. The upper part of the sealing sleeve (8) is embedded in the connecting groove (7.1), and the lower part is embedded between the shoulder of the cylinder opening of the connecting cylinder (1.1) and the top surface of the upper half shell (1).

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