Contactor shell structure and contactor

Abstract

The contactor shell structure comprises an upper shell and a lower shell, the upper shell is clamped in the lower shell, the upper shell is provided with an annular outer side wall, the lower shell is provided with an annular inner side wall opposite to the annular outer side wall, the upper shell is provided with an installation hole matched with a static contact, the static contact is installed in the lower shell, and the top of the static contact is clamped in the installation hole. A first dispensing groove is formed in the position, at the joint of the annular outer side wall and the annular inner side wall, of the upper shell, a second dispensing groove is formed in the position, at the joint of the side wall of the mounting hole and the static contact, of the upper shell, and a communicating groove used for communicating the first dispensing groove with the second dispensing groove is further formed in the upper shell. The contactor comprises the contactor shell structure. According to the contactor shell structure and the contactor, the first dispensing groove and the second dispensing groove are communicated into a whole through the communication groove, dispensing between the upper shell and the lower shell and dispensing between the upper shell and the static contact can be conveniently and automatically completed at a time, the dispensing process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, and particularly relates to a contactor housing structure and a contactor. Background Art

[0002] The housing of the contactor plays a role in insulation protection. Therefore, whether the housing is firm determines the safety performance of the contactor. The housing is usually divided into an upper housing and a lower housing. The fixing method between the upper housing and the lower housing adopts fixing methods such as adhesive fixing and snap fixing. However, adhesive bonding requires multiple adhesions at different positions of the contactor, resulting in low production efficiency.

[0003] In addition, the upper housing is complex in molding and low in efficiency. The mold requires multiple core pulls, resulting in high costs.

[0004] In addition, the housing is prone to bumping against the gas charging pipe, resulting in air leakage of the gas charging pipe.

[0005] In addition, the upper limit of the installation torque is too low, and the lower housing is prone to cracking during installation. Summary of the Invention

[0006] The purpose of the utility model is to overcome at least one defect of the prior art, and provide a contactor housing structure and a contactor.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The contactor housing structure includes an upper housing and a lower housing. The upper housing is snapped into the lower housing. The upper housing has an annular outer side wall, and the lower housing has an annular inner side wall opposite to the annular outer side wall. The upper housing is provided with an installation hole for cooperating with a static contact. The static contact is installed in the lower housing, and the top of the static contact is snapped into the installation hole. The upper housing is provided with a first glue application groove at the connection between the annular outer side wall and the annular inner side wall, and the upper housing is provided with a second glue application groove at the connection between the side wall of the installation hole and the static contact. The upper housing is further provided with a communication groove for communicating the first glue application groove and the second glue application groove.

[0009] Optionally, a first diversion part is provided at the connection between the annular outer side wall and the top surface of the upper housing, and the first diversion part is arranged around the annular outer side wall for one week. The first diversion part is spaced from the annular inner side wall to form the annular first glue application groove.

[0010] Optionally, the first diversion part is inclined so that the first diversion part approaches the annular inner side wall in the downward direction.

[0011] Optionally, a second diversion part is provided at the connection between the side wall of the mounting hole and the top surface of the upper housing, and the second diversion part is arranged around the mounting hole. The second diversion part is spaced from the side wall of the static contact to form the annular second glue application groove.

[0012] Optionally, the second diversion part is inclined so that the second diversion part approaches the side wall of the static contact in the downward direction.

[0013] Optionally, the communication groove is a linear groove provided on the top surface of the upper housing.

[0014] Optionally, a buckle is provided on the inner annular wall, and a clamping groove cooperating with the buckle is provided on the outer annular wall. The buckle is snapped into the clamping groove.

[0015] Optionally, the buckle is a square block structure, and a guiding inclined surface is provided at the top end of the buckle; the clamping groove is a square groove surrounded by a bottom wall and three side walls respectively vertically connected to three sides of the bottom wall.

[0016] Optionally, a limiting groove is provided at the top end of the inner annular wall, and a limiting protrusion extending outward is provided on the outer annular wall. The limiting protrusion is inserted into the limiting groove.

[0017] Optionally, a protruding guiding rib is provided on the side wall of the mounting hole.

[0018] Optionally, at least two mounting holes are provided on the upper housing, an arc isolation plate located between the mounting holes is provided on the top surface of the upper housing, and a receiving cavity extending to the arc isolation plate is provided on the bottom surface of the upper housing for receiving a charging pipe.

[0019] Optionally, two mounting feet extend outward respectively from both sides of the bottom of the lower housing. Fixing holes are provided on the mounting feet, and copper rings are provided in the fixing holes.

[0020] A contactor includes the contactor housing structure according to any one of the above.

[0021] For the contactor housing structure and the contactor of the present utility model, the communication groove connects the first glue application groove and the second glue application groove into a whole, facilitating the automation of the glue application between the upper housing and the lower housing and the glue application between the upper housing and the static contact at one time, simplifying the glue application process and improving the production efficiency.

[0022] In addition, the buckle of the lower housing cooperates with the clamping groove of the upper housing, enabling the upper housing and the lower housing to be closely fitted, improving the installation reliability, and also making the upper housing easy to mold and highly efficient.

[0023] In addition, the limiting protrusion of the upper housing cooperates with the limiting groove of the lower housing to prevent the upper housing from rotating and improve the installation stability.

[0024] In addition, the guiding ribs are provided to prevent the upper housing from shifting horizontally during installation, thereby preventing the upper housing from hitting the gas charging pipe protruding from the lower housing and causing air leakage.

[0025] In addition, a copper ring is provided in the fixing hole of the mounting foot to increase the mounting torque of the mounting foot and prevent cracking during installation. Description of the Drawings

[0026] Figure 1 is the assembly drawing of the contactor of the present utility model;

[0027] Figure 2 is the exploded view of the contactor of the present utility model.

[0028] Upper housing 1; annular outer side wall 101; mounting hole 102; first glue application groove 103; second glue application groove 104; communication groove 105; first diversion part 106; clamping groove 107; limiting protrusion 108; second diversion part 109; guiding rib 110; arc separating plate 111; lower housing 2; annular inner side wall 201; buckle 202; guiding inclined surface 202a; limiting groove 203; mounting foot 204; fixing hole 205; static contact 3; gas charging pipe 4. Detailed Embodiments

[0029] The following embodiments given in conjunction with the drawings further illustrate the contactor housing structure of the present utility model and the specific implementation manners of the contactor. The contactor housing structure and the contactor of the present utility model are not limited to the descriptions of the following embodiments.

[0030] As Figure 1 and Figure 2 shown, the contactor of this embodiment includes a contactor housing structure, the contactor housing structure includes an upper housing 1 and a lower housing 2, the upper housing 1 is snapped into the lower housing 2, the upper housing 1 has an annular outer side wall 101, the lower housing 2 has an annular inner side wall 201 opposite to the annular outer side wall 101, the upper housing 1 is provided with a mounting hole 102 for cooperating with the static contact 3, the static contact 3 is installed in the lower housing 2, and the top of the static contact 3 is snapped into the mounting hole 102. Particularly, the upper housing 1 is provided with a first glue application groove 103 at the connection between the annular outer side wall 101 and the annular inner side wall 201, the upper housing 1 is provided with a second glue application groove 104 at the connection between the side wall of the mounting hole 102 and the static contact 3, and the upper housing 1 is further provided with a communication groove 105 for communicating the first glue application groove 103 and the second glue application groove 104. In the contactor housing structure of this embodiment, the communication groove 105 connects the first glue application groove 103 and the second glue application groove 104 into a whole, facilitating the one-time automated glue application between the upper housing 1 and the lower housing 2 and between the upper housing 1 and the static contact 3, simplifying the glue application process and improving production efficiency.

[0031] AsFigure 1 and Figure 2 As shown in Figure 2 , for the structure of the first glue dispensing groove 103 in this embodiment, a first diversion portion 106 is provided at the connection between the annular outer sidewall 101 and the top surface of the upper housing 1, and the first diversion portion 106 is arranged to surround the annular outer sidewall 101 for one week. There is a gap between the first diversion portion 106 and the annular inner sidewall 201 to form the annular first glue dispensing groove 103. Preferably, the first diversion portion 106 is inclined so that the first diversion portion 106 approaches the annular inner sidewall 201 in the downward direction, facilitating the rapid guiding of the glue in the communication groove 105 into the first glue dispensing groove 103.

[0032] As Figure 1 and Figure 2 As shown in Figure 2 , for the structure of the second glue dispensing groove 104 in this embodiment, a second diversion portion 109 is provided at the connection between the sidewall of the mounting hole 102 and the top surface of the upper housing 1, and the second diversion portion 109 is arranged to surround the mounting hole 102. There is a gap between the second diversion portion 109 and the sidewall of the static contact 3 to form the annular second glue dispensing groove 104. Preferably, the second diversion portion 109 is inclined so that the second diversion portion 109 approaches the sidewall of the static contact 3 in the downward direction, facilitating the rapid guiding of the glue in the communication groove 105 into the second glue dispensing groove 104.

[0033] As Figure 1 and Figure 2 As shown in Figure 2 , for the structure of the communication groove 105 in this embodiment, the communication groove 105 is a linear groove provided on the top surface of the upper housing 1.

[0034] As Figure 1 and Figure 2As shown in the figure, for the installation structure between the upper housing 1 and the lower housing 2 of this embodiment, a buckle 202 is provided on the annular inner side wall 201 of the lower housing 2, and a card slot 107 that cooperates with the buckle 202 is provided on the annular outer side wall 101 of the upper housing 1, and the buckle 202 is snapped into the card slot 107. The cooperation between the buckle 202 of the lower housing 2 and the card slot 107 of the upper housing 1 enables the upper housing 1 and the lower housing 2 to be closely fitted, improving the installation reliability, and also making the upper housing 1 easy to form and highly efficient. Specifically, the buckle 202 is a square block structure, and a guiding inclined surface 202a is provided at the top of the buckle 202; the card slot 107 is a square groove surrounded by a bottom wall and three side walls respectively vertically connected to three sides of the bottom wall. The structures of the buckle 202 and the card slot 107 are simple, and the guiding inclined surface 202a enables the upper housing 1 to be easily snapped into the lower housing 2. In addition, a limiting groove 203 is provided at the top of the annular inner side wall 201, and a limiting protrusion 108 extending outward is provided on the annular outer side wall 101, and the limiting protrusion 108 is inserted into the limiting groove 203. The cooperation between the limiting protrusion 108 of the upper housing 1 and the limiting groove 203 of the lower housing 2 prevents the upper housing 1 from rotating and improves the installation stability.

[0035] As Figure 1 and Figure 2 shown in the figure, for the installation structure between the upper housing 1 and the static contact 3 of this embodiment, a protruding guiding rib 110 is provided on the side wall of the mounting hole 102 of the upper housing 1; when the top of the static contact 3 is snapped into the mounting hole 102, the top side wall of the static contact 3 slides along the guiding rib 110. The provision of the guiding rib 110 is to prevent the upper housing 1 from shifting in the horizontal direction during installation, thereby preventing the upper housing 1 from hitting the gas charging pipe 4 protruding from the lower housing 2 and causing air leakage. One or more guiding ribs 110 are provided, and preferably, the multiple guiding ribs 110 are evenly distributed on the side wall of the mounting hole 102.

[0036] As Figure 1 and Figure 2As shown in the figure, at least two mounting holes 102 are provided on the upper housing 1. An arc separating plate 111 is provided on the top surface of the upper housing 1 between the mounting holes 102, which is used to separate the arc generated between the static contact 3 and the moving contact in the mounting holes 102. A receiving cavity extending to the arc separating plate 111 is provided on the bottom surface of the upper housing 1 for receiving the charging pipe 4. The charging pipe 4 is used to evacuate the shielding shell of the arc extinguishing chamber. The part of the charging pipe 4 protruding from the lower housing 2 is inserted into the receiving cavity of the upper housing 1 to play a protective role. Specifically, two mounting holes 102 are provided on the upper housing 1. The arc separating plate 111 is of a linear structure. The two mounting holes 102 are symmetrically arranged on both sides of the arc separating plate 111, and the part of the arc separating plate 111 corresponding to the receiving cavity is of a cylindrical structure. Obviously, the mounting holes 102 correspond to the static contacts 3, and one or two or more mounting holes 102 can be provided. The shape of the arc separating plate 111 is related to the number and arrangement of the mounting holes 102. For example, if four mounting holes 102 are arranged in a four-corner distribution, the arc separating plate 111 can be of a cross-shaped structure.

[0037] As Figure 1 and Figure 2 shown in the figure, two mounting feet 204 are respectively extended outward from both sides of the bottom of the lower housing 2. Fixing holes 205 are provided on the mounting feet 204 for cooperating with fasteners to fix the contactor in the use position. A copper ring is provided in the fixing holes 205 to improve the mounting torque of the mounting feet 204 and avoid cracking during installation.

[0038] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which it is usually placed during use. It is only for the convenience of description and does not indicate that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating relative importance.

[0039] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A contactor housing structure, comprising an upper housing (1) and a lower housing (2), wherein the upper housing (1) is inserted into the lower housing (2), the upper housing (1) having an annular outer wall (101), the lower housing (2) having an annular inner wall (201) opposite to the annular outer wall (101), the upper housing (1) being provided with a mounting hole (102) matched with a stationary contact (3), the stationary contact (3) being inserted into the lower housing (2), and the top of the stationary contact (3) being inserted into the mounting hole (102), characterized in that: The upper shell (1) is provided with a first glue dispensing groove (103) at the connection between the annular outer side wall (101) and the annular inner side wall (201), the upper shell (1) is provided with a second glue dispensing groove (104) at the connection between the side wall of the mounting hole (102) and the static contact (3), and the upper shell (1) is also provided with a connecting groove (105) for connecting the first glue dispensing groove (103) and the second glue dispensing groove (104).

2. The contactor housing structure according to claim 1, characterized in that: A first flow guide portion (106) is provided at the connection between the annular outer wall (101) and the top surface of the upper shell (1), and the first flow guide portion (106) is arranged around the annular outer wall (101), and the first flow guide portion (106) is spaced from the annular inner wall (201) to form the first annular glue dispensing groove (103).

3. The contactor housing structure according to claim 2, characterized in that: The first flow guide portion (106) is arranged at an angle so that the first flow guide portion (106) approaches the annular inner side wall (201) in a downward direction.

4. The contactor housing structure according to claim 1, characterized in that: A second flow guide (109) is provided at the connection between the side wall of the mounting hole (102) and the top surface of the upper shell (1), and the second flow guide (109) is arranged around the mounting hole (102), and the second flow guide (109) is spaced from the side wall of the static contact (3) to form an annular second glue dispensing groove (104).

5. The contactor housing structure according to claim 4, characterized in that: The second flow guide portion (109) is arranged at an angle so that the second flow guide portion (109) approaches the side wall of the stationary contact (3) in a downward direction.

6. The contactor housing structure according to claim 1, characterized in that: The communication groove (105) is a straight groove arranged on the top surface of the upper housing (1).

7. The contactor housing structure according to claim 1, characterized in that: The annular inner wall (201) is provided with a buckle (202), and the annular outer wall (101) is provided with a slot (107) that matches the buckle (202), and the buckle (202) is buckled into the slot (107).

8. The contactor housing structure according to claim 7, characterized in that: The buckle (202) is a square block structure, and a guide slope (202a) is provided at the top of the buckle (202); the clamping groove (107) is a square groove formed by a bottom wall and three side walls respectively vertically connected to three sides of the bottom wall.

9. The contactor housing structure according to claim 1, characterized in that: A limiting groove (203) is provided at the top end of the annular inner wall (201), and a limiting protrusion (108) extending outward is provided on the annular outer wall (101), and the limiting protrusion (108) is inserted into the limiting groove (203).

10. The contactor housing structure according to claim 1, characterized in that: A protruding guide rib (110) is provided on the side wall of the mounting hole (102).

11. The contactor housing structure according to claim 1, characterized in that: At least two mounting holes (102) are provided on the upper shell (1), an arc isolation plate (111) located between the mounting holes (102) is provided on the top surface of the upper shell (1), and a receiving cavity extending to the arc isolation plate (111) is provided on the bottom surface of the upper shell (1) for receiving the inflation tube (4).

12. The contactor housing structure according to claim 1, characterized in that: Two sides of the bottom of the lower housing (2) extend outwards to form two mounting feet (204), the mounting feet (204) are provided with fixing holes (205), and a copper ring is provided in the fixing hole (205).

13. A contactor, characterized in that: The contactor housing structure comprises the contactor housing structure according to any one of claims 1 to 12.

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