Copper piece structure of thermal relay

Abstract

The utility model provides a thermal relay copper piece structure, the thermal relay comprises a housing, the housing is provided with at least one connecting groove plugged with the copper piece structure, the connecting groove is communicated with the housing, the copper piece structure comprises a mounting support and a positioning column arranged on the mounting support and matched with the connecting groove, the positioning column can pass through the connecting groove, and the positioning column is connected with the connecting groove. According to the copper piece structure, the contact mechanism is arranged between the contact assembly and the shell of the thermal relay, the flanging abutting against the bottom of the shell can be formed through stamping, and the copper piece structure can overcome the defect that in the prior art, no limiting structure is arranged between the contact assembly and the shell of the thermal relay, the contact mechanism is prone to displacement, the moving contact and the static contact are separated, and the contactor loses power.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal relays, in particular to a copper piece structure of a thermal relay. Background Art

[0002] A thermal relay is a protective device for protecting motors from overload. The working principle of a thermal relay is that the current flowing into the thermal element generates heat, causing the bimetallic strips with different expansion coefficients to deform. When the deformation reaches a certain distance, the connecting rod is pushed to disconnect the control circuit, thereby causing the contactor to lose power and the main circuit to disconnect, thereby achieving overload protection for the motor. In the patent with publication number CN207868134U, a relay contact structure is disclosed, which includes a contact, a static contact, a contact bridge and a mounting bracket. The contact mechanism is arranged inside the thermal relay, but in the prior art, there are only two circular holes, which are sleeved on the housing of the thermal relay. In this way, during use, since there is no limiting structure between the contact assembly and the housing of the thermal relay, the contact mechanism is easily displaced, resulting in the separation of the moving contact and the static contact, thereby causing the contactor to lose power. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that there is no limiting structure between the contact assembly and the shell of the thermal relay, the contact mechanism is easily displaced, resulting in the separation of the moving contact and the static contact, thereby causing the contactor to lose power, thereby providing a copper structure of a thermal relay with strong connectivity to the shell of the thermal relay.

[0004] To this end, the utility model provides a copper structure of a thermal relay, the thermal relay comprising a shell, the shell being provided with at least one connecting groove plugged into the copper structure, the connecting groove being connected to the shell, the copper structure comprising a mounting bracket, and a positioning column arranged on the mounting bracket and adapted to the connecting groove, the positioning column being able to pass through the connecting groove, and being able to form a flange that abuts against the bottom of the shell by stamping.

[0005] Furthermore: a circular groove is provided at the bottom of the shell, the circular groove is connected to the connecting groove, and the flange is in conflict with the inner wall of the circular groove.

[0006] Furthermore: a through groove is provided on the copper part, the through groove is connected to the positioning column from the upper end surface of the mounting bracket and extends to the outside, and the through groove is coaxially arranged with the positioning column.

[0007] Furthermore: a trumpet-shaped opening is provided on the side of the through slot away from the positioning column.

[0008] Furthermore: a positioning device is provided between the shell and the mounting bracket for plugging the two together, and the positioning device includes a positioning rod provided on one side of the shell and the mounting bracket, and a card slot provided on the other side and adapted to the positioning rod, and the card slot is sleeved on the outside of the positioning rod.

[0009] Furthermore: the card slot is provided on the mounting bracket, and the positioning rod is located on the end surface of the shell and is integrally formed with the shell.

[0010] The technical solution of the utility model has the following advantages:

[0011] 1. The utility model provides a copper structure of a thermal relay, wherein a positioning column is arranged on a mounting bracket. When connecting the mounting bracket and the housing, it is only necessary to place the mounting bracket on the housing, and then pass the positioning column on the mounting bracket through the connecting groove, and then place the housing on a stamping machine to stamp the positioning column so that the positioning column forms a flange that abuts against the bottom of the housing. This is superior to the prior art, and the mounting bracket can be fixed on the housing. The implementation method is simple and uncomplicated, and the production cost is effectively reduced.

[0012] 2. The utility model provides a copper structure of a thermal relay. In order to ensure the tightness of the connection between the mounting bracket and the shell, a circular groove is provided at the bottom of the shell. After the positioning column passes through the connection groove, part of it will be located in the circular groove. Once stamping is performed, the part of the positioning column located in the circular groove will become a flange and abut against the inner wall of the circular groove. Since the space in the circular groove is limited, even if the positioning column is loose, it can only move within the range of the circular groove, thereby avoiding the separation of the mounting bracket from the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a connection position relationship diagram between the shell and the copper structure;

[0015] Figure 2 It is a cross-sectional view of the shell and copper structure;

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0017] Figure 4 This is the structural diagram of the copper structure before stamping.

[0018] Description of reference numerals:

[0019] 1. Shell; 2. Connection groove; 3. Mounting bracket; 31. Positioning column; 32. Flanging; 4. Circular groove; 5. Through groove; 6. Opening; 7. Positioning rod; 71. Card slot. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Example

[0025] The present embodiment provides a copper structure of a thermal relay, the thermal relay comprising a housing 1, the housing 1 being provided with at least one connecting groove 2 plugged into the copper structure, the connecting groove 2 being connected to the housing 1, the copper structure comprising a mounting bracket 3, and a positioning column 31 arranged on the mounting bracket 3 and adapted to the connecting groove 2, the positioning column 31 being able to pass through the connecting groove 2, and being able to form a flange 32 abutting against the bottom of the housing 1 by stamping.

[0026] The above specific improvements are: Figure 3 and Figure 4 As shown, compared with the prior art, a positioning column 31 is provided on the mounting bracket 3. When connecting the mounting bracket 3 and the housing 1, it is only necessary to place the mounting bracket 3 on the housing 1, and then pass the positioning column 31 on the mounting bracket 3 through the connecting groove 2, and then place the housing 1 on the stamping machine to stamp the positioning column 31, so that the positioning column 31 forms a flange 32 that abuts against the bottom of the housing 1 (the deformation structure of the positioning column 31 after stamping is as shown in FIG. Figure 3 As shown), this is superior to the prior art, and can fix the mounting bracket 3 on the housing 1, and the implementation method is simple and not complicated, effectively reducing the production cost, and the effect is remarkable.

[0027] On the basis of the above embodiment: a circular groove 4 is provided at the bottom of the shell 1 , the circular groove 4 is communicated with the connecting groove 2 , and the flange 32 is in conflict with the inner wall of the circular groove 4 .

[0028] The above specific improvements are: Figure 1-Figure 3 As shown, in order to ensure the tightness of the connection between the mounting bracket 3 and the shell 1, the shell 1 has a circular groove 4 at the bottom. After the positioning column 31 passes through the connecting groove 2, part of it will be located in the circular groove 4. Once stamping is performed, the part of the positioning column 31 located in the circular groove 4 will become a flange 32 and abut against the inner wall of the circular groove 4. Since the space of the circular groove 4 is limited, even if the positioning column 31 is loose, it can only move within the range of the circular groove 4, thereby avoiding the separation of the mounting bracket 3 from the shell 1.

[0029] On the basis of the above embodiment: a through groove 5 is provided on the copper part, the through groove 5 is connected to the positioning column 31 from the upper end surface of the mounting bracket 3 and extends to the outside, and the through groove 5 and the positioning column 31 are coaxially arranged.

[0030] On the basis of the above embodiment: a trumpet-shaped opening 6 is provided on the side of the through slot 5 away from the positioning column 31 .

[0031] The above-mentioned specific improvement is: through the setting of the through groove 5, the punching machine can be inserted into the through groove 5, so that the positioning column 31 completes the riveting. During riveting, there will be a protrusion on the punching machine, which squeezes the through groove 5, so that the bottom of the positioning column 31 forms a flange 32, and through the setting of the trumpet-shaped opening 6, the punching machine can be effectively guided to squeeze into the through groove 5.

[0032] On the basis of the above embodiment: a positioning device for plugging the shell 1 and the mounting bracket 3 is provided between the shell 1 and the mounting bracket 3, and the positioning device includes a positioning rod 7 provided on one side of the shell 1 and the mounting bracket 3, and a card slot 71 provided on the other side and adapted to the positioning rod 7, and the card slot 71 is sleeved on the outside of the positioning rod 7.

[0033] On the basis of the above embodiment: the card slot 71 is provided on the mounting bracket 3 , and the positioning rod 7 is located on the end surface of the housing 1 and is integrally formed with the housing 1 .

[0034] The above specific improvements are: Figure 1 As shown, in order to preliminarily fix the position of the mounting bracket 3 and the shell 1, a positioning rod 7 is injection molded on the shell 1, and then the positioning rod 7 is passed through the slot 71 of the mounting bracket 3 to fix the mounting bracket 3 on the shell 1, and then the positioning column 31 is stamped to completely fix the mounting bracket 3 on the shell 1.

[0035] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A copper structure of a thermal relay, characterized in that: The thermal relay comprises a housing (1), the housing (1) being provided with at least one connection groove (2) plugged into a copper structure, the connection groove (2) being connected to the housing (1), the copper structure comprising a mounting bracket (3), and a positioning column (31) arranged on the mounting bracket (3) and adapted to the connection groove (2), the positioning column (31) being capable of passing through the connection groove (2) and being capable of forming a flange (32) abutting against the bottom of the housing (1) by stamping.

2. The copper structure of a thermal relay according to claim 1, characterized in that: A circular groove (4) is provided at the bottom of the shell (1), the circular groove (4) is connected to the connecting groove (2), and the flange (32) is in contact with the inner wall of the circular groove (4).

3. The copper structure of a thermal relay according to claim 1, characterized in that: The copper part is provided with a through groove (5), the through groove (5) is connected to the positioning column (31) from the upper end surface of the mounting bracket (3) and extends to the outside, and the through groove (5) and the positioning column (31) are coaxially arranged.

4. The copper structure of a thermal relay according to claim 3, characterized in that: A trumpet-shaped opening (6) is provided on one side of the through slot (5) away from the positioning column (31).

5. A copper structure of a thermal relay according to any one of claims 1 to 4, characterized in that: A positioning device for plugging the shell (1) and the mounting bracket (3) is provided between the shell (1) and the mounting bracket (3), and comprises a positioning rod (7) provided on one side of the shell (1) and the mounting bracket (3), and a card slot (71) provided on the other side and adapted to the positioning rod (7), wherein the card slot (71) is sleeved on the outside of the positioning rod (7).

6. The copper structure of a thermal relay according to claim 5, characterized in that: The card slot (71) is provided on the mounting bracket (3), and the positioning rod (7) is located on the end surface of the shell (1) and is integrally formed with the shell (1).

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