Module head of surge protector and surge protector

Abstract

The utility model relates to the field of surge protector equipment, in particular to a module head of a surge protector and the surge protector. The module head of the surge protector comprises a thermal tripping assembly and a lightning protection element, the lightning protection element is provided with a first end and a second end which are opposite, the lightning protection element can be matched with a base in an inserted mode in the direction from the first end to the second end, a first connecting piece is arranged at the position, close to the first end, of one side of the lightning protection element, and a second connecting piece is arranged at the position, close to the second end, of the lightning protection element. A first connecting piece is arranged on one side of the lightning protection element close to the first end, a second connecting piece is arranged on the other side of the lightning protection element close to the second end, the thermal tripping assembly comprises a belt body, one end of the belt body is welded to the second connecting piece, the other end of the belt body extends to the position close to the first end of the lightning protection element to be connected with a connecting piece, and the connecting piece is fixedly connected with the lightning protection element.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of surge protector device, in particular to a module head of a surge protector and the surge protector. BACKGROUND

[0002] The surge protector often adopts a modular structure, which is composed of a base and a module head, wherein the base is internally provided with sensors and circuit boards and other elements, and the module head is internally provided with lightning protection elements and thermal trip components and other elements, the lightning protection elements are matched with the grounding circuit in the base through the first connecting piece and the connecting piece extending out of the module head, the base of the existing surge protector is provided with a groove, the module head is inserted into the groove to be fixed with the base, the opposite side end faces of the module head are respectively matched with the groove wall surfaces, so that the position of the module head is fixed, and the conductive piece is arranged on the groove wall close to the bottom of the groove, the conductive piece is connected with the circuit in the base, and the first connecting piece and the connecting piece of the module head are moved to be matched with the conductive piece along with the module head.

[0003] Since the first connecting piece and the connecting piece protrude from the two side end faces of the module head, the groove wall surface of the base groove needs to be provided with a groove structure for the first connecting piece and the connecting piece to pass through, the conductive piece is arranged at the position close to the bottom of the groove structure, the first connecting piece and the connecting piece of the module head need to be inserted into the groove structure along with the module head, and then slid to the position of the conductive piece at the bottom of the groove along with the module head, so that the cooperation precision between the base and the module head is required to be high, and the structure of the base is complex. SUMMARY

[0004] On the one hand, the present application provides a module head of a surge protector, which can reduce the cooperation precision requirement between the base and the module head, and simplify the structure of the base.

[0005] The module head of the surge protector provided by the present application comprises a thermal trip component and a lightning protection element, the lightning protection element has opposite first and second ends, the lightning protection element can be inserted and matched with the base in the direction from the first end to the second end, a first connecting piece is arranged on one side of the lightning protection element close to the first end, a second connecting piece is arranged on the other side of the lightning protection element close to the second end, the thermal trip component comprises a belt body, one end of the belt body is welded with the second connecting piece, the other end of the belt body extends to the position close to the first end of the lightning protection element and is connected with a connecting piece, and the connecting piece is fixedly connected with the lightning protection element.

[0006] Further, the connecting piece and the second connecting piece are located on the same side of the lightning protection element.

[0007] Further, the thermal trip assembly further comprises an action lever, the band is located between the action lever and the lightning protection element, the action lever is capable of moving in the direction from the first end to the second end of the lightning protection element under the action of the spring, and the action lever is provided with an abutting portion on the side close to the lightning protection element, and the abutting portion abuts against the side end face of the band towards the connecting piece.

[0008] Further, the first connecting piece and the connecting piece are provided with a first connecting hole for penetrating a screw.

[0009] Further, at least a part of the first connecting piece and at least a part of the connecting piece extend in the direction perpendicular to the direction from the first end to the second end of the lightning protection element to form a fitting portion, the first connecting hole is arranged on the fitting portion, and the axis direction of the first connecting hole is parallel to the direction from the first end to the second end of the lightning protection element.

[0010] Further, the surge protector module head further comprises a shell, the connecting piece and the lightning protection element are located in the shell, and the connecting piece and the lightning protection element are fixedly connected with the shell.

[0011] Further, the surge protector module head further comprises a shell, the shell is provided with a through hole, the action lever is located in the shell and is in sliding fit with the inner wall of the through hole, and the end of the action lever in the moving direction extends out of the shell through the through hole.

[0012] Further, the side of the action lever away from the lightning protection element is in fit with the inner wall of the shell.

[0013] The surge protector provided by the application comprises a base, the base is provided with an installation cavity with an open end, the base is provided with a conductive piece connected with a grounding circuit in the base close to the opening, and the conductive piece is connected with the first connecting piece and the connecting piece in the module head of the surge protector according to any one of the above.

[0014] Further, the base is provided with a second connecting hole, and the first connecting piece and the connecting piece are capable of being engaged with the second connecting hole through a screw.

[0015] Advantageous effects

[0016] In order to avoid the first connecting piece and the connecting piece of the module head needing to be inserted into the base along with the module head when the module head is matched with the base, a groove structure for the first connecting piece and the connecting piece to pass through needs to be designed on the base, the lightning protection element in the scheme has opposite first and second ends, the first connecting piece and the connecting piece are arranged at the position close to the first end of the lightning protection element, the lightning protection element can be inserted and matched with the base in the direction from the first end to the second end, when the module head is matched with the base, the second end of the lightning protection element first contacts the base, when the part close to the first end of the lightning protection element contacts the base, the first connecting piece and the connecting piece are matched with the corresponding positions of the base, compared with the first connecting piece and the connecting piece of the traditional scheme which first contact the base when the module head is matched with the base, the first connecting piece and the connecting piece in the scheme are matched with the base at the end of the matching stroke of the module head and the base, therefore, the structure for matching the stroke of the first connecting piece and the connecting piece does not need to be arranged on the base, the matching precision requirement between the base and the module head is reduced, and the structure of the base is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Fig. 1 is a front view structural schematic diagram of the cooperation of the thermal trip assembly and the lightning protection element of the module head provided by Embodiment One and Embodiment Two of the present application;

[0019] Fig. 2 is a side view structural schematic diagram of the thermal trip assembly provided by Embodiment One and Embodiment Two of the present application;

[0020] Fig. 3 is a cooperation schematic diagram of the module head and the base provided by Embodiment Two of the present application.

[0021] Corresponding to the drawings: 1-lightning protection element; 2-first connecting piece; 3-second connecting piece; 4-connecting piece; 5-adhesion part; 6-thermal trip assembly; 7-first end; 8-second end; 9-spring; 10-action rod; 11-abutment block; 12-abutment part; 13-belt body; 14-housing; 15-conductive piece; 16-base; 17-mounting cavity; 18-passageway opening; a-first direction. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0023] Example 1

[0024] like Figs. 1-2 The module head of a surge protector shown includes a thermal trip assembly 6 and a lightning protection element 1. The lightning protection element 1 has a first end 7 and a second end 8 relative to each other. The lightning protection element 1 can be plugged into and matched with the base 16 along the direction from the first end 7 to the second end 8, that is, the first direction a. A first connecting piece 2 is provided on one side of the lightning protection element 1 near the first end 7, and a second connecting piece 3 is provided on the other side of the lightning protection element 1 near the second end 8. The thermal trip assembly 6 includes a belt body 13, one end of the belt body 13 is welded to the second connecting piece 3, and the other end extends to the first end 7 near the lightning protection element 1 and is connected to the connector 4, and the connector 4 is fixedly connected to the lightning protection element 1.

[0025] In order to avoid the first connecting piece 2 and the connecting piece 4 of the module head needing to be inserted into the base 16 along with the module head when the module head is matched with the base 16, a groove structure for the first connecting piece 2 and the connecting piece 4 to pass through needs to be designed on the base 16, resulting in high matching accuracy requirements between the base 16 and the module head and complex structure of the base 16. The lightning protection element 1 in this solution has a first end 7 and a second end 8 relative to each other, and the first connecting piece 2 and the connecting piece 4 are both arranged at the lightning protection element 1 near the first end 7. The lightning protection element 1 can be plugged and matched with the base 16 in the direction from the first end 7 to the second end 8. When the module head is matched with the base 16, the lightning protection element The second end 8 of the component 1 first contacts the base 16. When the part of the lightning protection element 1 close to the first end 7 contacts the base 16, the first connecting piece 2 and the connecting piece 4 then cooperate with the corresponding parts of the base 16. Compared with the traditional solution, the first connecting piece 2 and the connecting piece 4 first contact the base 16 when the module head cooperates with the base 16. The first connecting piece 2 and the connecting piece 4 in this solution cooperate with the base 16 at the end of the cooperation stroke between the module head and the base 16. Therefore, there is no need to set a structure on the base 16 for coordinating the stroke of the first connecting piece 2 and the connecting piece 4, which reduces the cooperation accuracy requirements between the base 16 and the module head and simplifies the structure of the base 16.

[0026] To realize the structure layout that the first connecting piece 2 and the connecting piece 4 are both arranged at the first end 7 of the lightning protection element 1, in the present scheme, the second connecting piece 3 opposite to the first connecting piece 2 is arranged at the other side of the lightning protection element 1 close to the second end 8, which is consistent with the prior scheme, the first connecting piece 2 and the second connecting piece 3 are arranged along the diagonal line of the lightning protection element 1, the band 13 of the thermal trip assembly 6 forming the module head fixedly connected with the lightning protection element 1 is welded with the second connecting piece 3, when the thermal trip action occurs, the welding at this position is fused, the other end of the band 13 extends to the connecting piece 4 close to the first end 7 of the lightning protection element 1, that is, through the band 13 of the thermal trip assembly 6, the connecting piece 4 is extended from the second end 8 close to the lightning protection assembly to the first end 7, so that the connecting piece 4 and the first connecting piece 2 are both located at the second end 8 close to the lightning protection assembly.

[0027] In an alternative embodiment, the connecting piece 4 and the second connecting piece 3 are located at the same side of the lightning protection element 1.

[0028] The connecting piece 4 and the second connecting piece 3 are both arranged at the side end of the lightning protection element 1, which is opposite to the side end where the first connecting piece 2 is located, therefore the band 13 between the connecting piece 4 and the second connecting piece 3 is also located at the side of the lightning protection element 1, the thermal trip assembly 6 further comprises an action rod 10, the action rod 10 cooperates with the band 13, therefore the action rod 10 is also located at the side of the lightning protection element 1, therefore in the direction from the first connecting piece 2 to the connecting piece 4, the module head is sequentially provided with the first connecting piece 2, the lightning protection element 1 and the thermal trip assembly 6, each component in the module head is arranged along the direction, therefore the size of the module head in the direction is larger, and the overall structure is relatively flat, when the surge protector is used in multiple connections, multiple module heads can be densely arranged in the direction with smaller size.

[0029] In an alternative embodiment, the thermal trip assembly 6 further comprises an action rod 10, the band 13 is located between the action rod 10 and the lightning protection element 1, the action rod 10 can move in the direction from the first end 7 to the second end 8 of the lightning protection element 1 under the action of the spring 9, the side of the action rod 10 close to the lightning protection element 1 is provided with an abutting portion 12, the abutting portion 12 abuts against the side end face of the band 13 facing the connecting piece 4.

[0030] The action lever 10 is moved by the spring 9 in the direction from the connecting piece 4 close to the first end 7 of the lightning protection element 1 to the second connecting piece 3 close to the second end 8 of the lightning protection element 1, and the side close to the lightning protection element 1 is provided with an abutting block 11 protruding in the direction perpendicular to the above-mentioned direction, the end surface of the abutting block 11 in the above-mentioned direction forms an abutting part 12, the abutting part 12 abuts against the side end surface of the belt 13 towards the connecting piece 4, that is, the abutting block 11 and the belt 13 are located in the space formed between the lightning protection element 1 and the action lever 10, and the action lever 10 is located on the side of the abutting block 11 away from the lightning protection element 1, so that the action lever 10 can extend to the position close to the second end 8 of the lightning protection element 1 without being blocked by the belt 13 and cooperate with the corresponding position of the base 16.

[0031] In an alternative embodiment, the first connecting piece 2 and the connecting piece 4 are provided with first connecting holes for passing through the screws.

[0032] The first connecting piece 2 and the connecting piece 4 are connected to the grounding circuit in the surge protector after the module head cooperates with the base 16, one end of the grounding circuit of the surge protector is connected to the protected circuit, and the other end is grounded, and the base 16 is provided with a corresponding conductive piece 15, which is a copper sheet structure, when the module head cooperates with the base 16, the first connecting piece 2 and the connecting piece 4 are respectively in contact with the copper sheet of the conductive piece 15 of the grounding circuit, the first connecting piece 2 and the connecting piece 4 are provided with first connecting holes, and the screws pass through the first connecting holes and the hole positions on the copper sheet of the conductive piece 15 to fix them.

[0033] In an alternative embodiment, at least a part of the first connecting piece 2 and at least a part of the connecting piece 4 extend in the direction perpendicular to the first end 7 to the second end 8 of the lightning protection element 1 to form a fitting part 5, and the first connecting hole is opened on the fitting part 5, and the axis direction of the first connecting hole is parallel to the direction of the first end 7 to the second end 8 of the lightning protection element 1.

[0034] The first connecting piece 2 and the connecting piece 4 are respectively copper sheet structures, and the copper sheets at the ends of the two away from the lightning protection element 1 are bent to form the fitting part 5, and the extension direction of the copper sheet of the fitting part 5 is perpendicular to the plug-in cooperation direction of the lightning protection element 1, that is, when the lightning protection element 1 cooperates with the base 16, the side end surface of the fitting part 5 towards the base 16 is finally fitted with the conductive piece 15 on the base 16, and the screws pass through the first connecting holes and the hole positions on the copper sheet of the conductive piece 15 to fix them.

[0035] In an alternative embodiment, the surge protector module head further comprises a shell 14, and the connecting piece 4 and the lightning protection element 1 are located in the shell 14 and fixedly connected with the shell 14.

[0036] The shell 14 is an insulating structure, the connecting piece 4 is fixed with the shell 14 through clamping, for forming the first connecting piece 2 and the second connecting piece 3 welded on the lightning protection element 1, the shell 14 is provided with a clamping hook on the inner wall, the first connecting piece 2 is provided with a clamping groove, the clamping hook and the clamping groove are matched to make the first connecting piece 2 and the shell 14 fixedly connected, and then the lightning protection element 1 and the shell 14 are fixed.

[0037] The shell 14 is provided with a through hole, the action rod 10 is located in the shell 14 and is in sliding fit with the inner wall of the through hole, the end of the action rod 10 in the moving direction extends out of the shell 14 through the through hole, and the side, away from the lightning protection element 1, of the action rod 10 is attached to the inner wall of the shell 14, so that the action rod 10 can be in sliding fit with the shell 14 in the shell 14 from the connecting piece 4 to the second connecting piece 3.

[0038] Embodiment two

[0039] As shown in Figs. 1-3 A surge protector, comprising a base 16, the base 16 is provided with an installation cavity 17 with one end opening, the base 16 is provided with a conductive piece 15 connected with the grounding circuit in the base 16 near the opening, the conductive piece 15 is connected with the first connecting piece 2 and the connecting piece 4 in the module head of the surge protector.

[0040] One end of the installation cavity 17 is an opening for inserting the module head, the other end is communicated with the intelligent box at the lower part of the base 16 through a channel 18, the intelligent box is provided with a sensor group and a circuit assembly. The base 16 is provided with a conductive piece 15 near the opening of the installation cavity 17, and the extension direction of the copper sheet of the conductive piece 15 is perpendicular to the plug-in fit direction of the module head.

[0041] The first connecting piece 2 and the connecting piece 4 are arranged at the first end 7 of the lightning protection element 1 and extend out of the shell 14 of the module head, that is, the first connecting piece 2 and the connecting piece 4 are located at the first end 7 of the lightning protection element 1 corresponding to the module head, when the module head is matched with the base 16, the part of the module head corresponding to the second end 8 of the lightning protection element 1 enters the installation cavity 17 through the opening first, with the module head moving into the installation cavity 17, the first connecting piece 2 and the connecting piece 4 approach the conductive piece 15, when the part of the module head corresponding to the second end 8 of the lightning protection element 1 approaches the opening of the installation cavity 17, the side end face of the first connecting piece 2 and the connecting piece 4 towards the base 16 is attached to the corresponding end face of the conductive piece 15 on the base 16, and then the first connecting hole and the hole position on the copper sheet of the conductive piece 15 are penetrated by the screw to fix them.

[0042] The shell 14 of the module head is provided with a through hole, and after the module head is matched with the base 16, the through hole of the module head is matched and communicated with the through channel 18 of the base 16, the action rod 10 of the thermal trip assembly 6 in the module head can pass through the through hole and the through channel 18 in sequence, and extend into the intelligent box to cooperate with the sensor group in the intelligent box. The sensor group includes a pressure sensor, a hall sensor or a displacement sensor, and can monitor the displacement of the action rod 10.

[0043] In an alternative embodiment, the base 16 is provided with a second connecting hole, and the first connecting piece 2 and the connecting piece 4 can be engaged with the second connecting hole through screws.

[0044] The base 16 is provided with a second connecting hole on the end surface of the plate member close to the opening of the mounting cavity 17, and the conductive member 15 is attached to the end surface of the plate member where the second connecting hole is located. The hole position on the conductive member 15 corresponds to the second connecting hole. After the first connecting piece 2 and the connecting piece 4 are attached to the conductive member 15, screws are passed through the first connecting hole and the hole position of the conductive member 15, and finally engaged with the second connecting hole, so that the first connecting piece 2 and the connecting piece 4 are fixed with the base 16.

[0045] It should be noted that any of the above embodiments is illustrative of the present application rather than limiting the present application, and a person skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol located between parentheses should not be construed as a limitation of the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" before an element does not exclude the presence of several such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, the several means can be embodied by one and the same item of hardware. The use of the words first, second and the like does not imply any order. The words can be interpreted as names.

[0046] The above embodiments are only suitable for illustrating the present application, but not limiting the present application. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, therefore all equivalent technical solutions also belong to the scope of the present application, and the patent protection scope of the present application should be defined by the claims.

Claims

1. A module head of a surge protector, comprising a thermal trip assembly (6) and a lightning protection element (1), characterized in that: The lightning protection element (1) has a first end (7) and a second end (8) opposite to each other. The lightning protection element (1) can be plugged into and matched with the base (16) in a direction from the first end (7) to the second end (8). A first connecting piece (2) is provided on one side of the lightning protection element (1) near the first end (7), and a second connecting piece (3) is provided on the other side of the lightning protection element (1) near the second end (8). The thermal release assembly (6) includes a belt body (13), one end of the belt body (13) is welded to the second connecting piece (3), and the other end extends to a position near the first end (7) of the lightning protection element (1) and is connected to the connecting piece (4). The connecting piece (4) is fixedly connected to the lightning protection element (1).

2. The module head of the surge protector according to claim 1, characterized in that: The connecting piece (4) and the second connecting piece (3) are located on the same side of the lightning protection element (1).

3. The module head of the surge protector according to claim 2, characterized in that: The thermal trip assembly (6) further comprises an actuating rod (10), the belt body (13) being located between the actuating rod (10) and the lightning protection element (1), the actuating rod (10) being movable in a direction from the first end (7) to the second end (8) of the lightning protection element (1) under the action of a spring (9), and an abutting portion (12) being provided on a side of the actuating rod (10) close to the lightning protection element (1), the abutting portion (12) abutting against an end face of the belt body (13) facing the connecting member (4).

4. The module head of the surge protector according to claim 1, characterized in that: The first connecting piece (2) and the connecting member (4) are provided with first connecting holes for passing screws.

5. The module head of the surge protector according to claim 4, characterized in that: At least a portion of the first connecting piece (2) and at least a portion of the connecting member (4) extend in a direction perpendicular to the first end (7) to the second end (8) of the lightning protection element (1) to form a fitting portion (5), the first connecting hole is provided on the fitting portion (5), and the axial direction of the first connecting hole is parallel to the direction from the first end (7) to the second end (8) of the lightning protection element (1).

6. The module head of the surge protector according to claim 5, characterized in that: The surge protector module head further includes a housing (14), and the connecting piece (4) and the lightning protection element (1) are both located in the housing (14) and fixedly connected to the housing (14).

7. The module head of the surge protector according to claim 3, characterized in that: The surge protector module head further comprises a shell (14), wherein the shell (14) is provided with a through opening, the actuating rod (10) is located in the shell (14) and is slidably engaged with the inner wall of the through opening, and the end of the actuating rod (10) in the moving direction extends out of the shell (14) via the through opening.

8. The module head of the surge protector according to claim 7, characterized in that: The side of the action rod (10) away from the lightning protection element (1) is in contact with the inner wall of the housing (14).

9. A surge protector comprising a base (16), characterized in that: A mounting cavity (17) with an opening at one end is provided in the base (16), and a conductive member (15) connected to a grounding circuit in the base (16) is provided near the opening. The conductive member (15) is connected to the first connecting piece (2) and the connecting member (4) in the module head of the surge protector according to any one of claims 1 to 8.

10. The surge protector according to claim 9, characterized in that: A second connecting hole is provided on the base (16), and the first connecting piece (2) and the connecting member (4) can respectively engage with the second connecting hole via screws.

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