Electrical device

Abstract

The embodiment of the utility model provides electrical equipment, and the electrical equipment comprises a housing which comprises a mounting groove and a first through hole communicated with the mounting groove, and the mounting groove comprises a contact surface; the wiring terminal comprises a connecting part and a deformation part, the connecting part and the deformation part are arranged in the mounting groove, the deformation part is located on one side of the connecting part, a mounting space is defined by the deformation part and the connecting part, the deformation part comprises a first end part and a second end part, the first end part is connected to the connecting part, and the second end part is connected to the connecting part. The second end portion and the connecting portion are spaced, the connecting portion abuts against the contact face, and in the axial direction of the first penetrating hole, the second end portion is farther away from the contact face than the connecting portion; and the fixing piece sequentially penetrates through the mounting space and the first through hole and presses the second end part to deform the second end part, and the end part, penetrating out of the first through hole, of the fixing piece is connected to the shell.

Description

Technical Field

[0001] The embodiments of this disclosure generally relate to the field of electrical equipment technology, and more specifically, to an electrical device. Background Technology

[0002] Terminal blocks are key components in electrical equipment used to connect, secure, and protect conductors (such as cables and wires). They are primarily used to provide safe and reliable electrical connections and facilitate the installation, maintenance, and expansion of circuits. Utility Model Content

[0003] In one aspect of this disclosure, an electrical device is provided, comprising: a housing including a mounting groove and a first through hole communicating with the mounting groove, the mounting groove including a contact surface; a terminal block including a connecting portion and a deformable portion disposed within the mounting groove, the deformable portion being located on one side of the connecting portion and forming a mounting space with the connecting portion, the deformable portion including a first end and a second end, the first end being connected to the connecting portion and the second end being spaced apart from the connecting portion, wherein the connecting portion abuts against the contact surface and, along the axial direction of the first through hole, the second end is further away from the contact surface than the connecting portion; and a fastener passing sequentially through the mounting space and the first through hole and pressing the second end to deform the second end, the end of the fastener protruding from the first through hole being connected to the housing.

[0004] The fastener according to embodiments of the present disclosure can securely assemble the terminal block to the housing. Furthermore, since the fastener can press the second end, the second end can provide a preload and drive the connection portion to remain in contact with the housing surface when the housing deforms in low-temperature environments, preventing loosening between the terminal block and the housing components. Therefore, the terminal block, fastener, and housing according to the present disclosure are securely connected to each other, and the degree of security is not affected by low temperatures.

[0005] In some embodiments, the terminal block further includes at least one protrusion disposed on the side of the connector opposite to the contact surface, and the retainer is adapted to move to a position abutting against the at least one protrusion during pressing of the second end.

[0006] In some embodiments, the mounting groove further includes an inclined surface and a clearance surface, the inclined surface being disposed between the contact surface and the clearance surface, and the clearance surface being located at a position corresponding to the deformable portion and spaced apart from the deformable portion along the axial direction.

[0007] In some embodiments, the electrical device further includes a top cover disposed on the housing, the first perforation being disposed on the inclined surface and the clearance surface and extending toward the top cover.

[0008] In some embodiments, along the axial direction, the contact surface and the inclined surface are respectively located at positions corresponding to the connecting portion.

[0009] In some embodiments, the inclined surface is spaced apart from the connecting portion.

[0010] In some embodiments, the connecting portion includes a first limiting surface, the deformable portion includes a second limiting surface disposed opposite to the first limiting surface, and the first limiting surface and the second limiting surface enclose the installation space.

[0011] In some embodiments, the terminal block further includes an interference portion disposed on the second limiting surface, and the interference portion, the first limiting surface, and the second limiting surface respectively abut against the fixing member.

[0012] In some embodiments, the terminal block further includes a wiring portion partially disposed within the mounting groove, and the wiring portion is adapted to connect to a fastener for mounting an external cable.

[0013] In some embodiments, the fastener includes a pressing portion, a fixing portion, and a main body portion disposed between the pressing portion and the fixing portion, wherein the pressing portion presses against the second end, the main body portion passes through the mounting space and the first through hole in sequence, and the fixing portion is connected to the housing.

[0014] It should be understood that the description in this section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0016] Figure 1 A partial structural schematic diagram of an electrical device according to some embodiments of the present disclosure is shown;

[0017] Figure 2 A schematic diagram of the structure of a housing according to some embodiments of the present disclosure is shown;

[0018] Figure 3 A schematic diagram of the structure of a wiring terminal according to some embodiments of the present disclosure is shown;

[0019] Figure 4 A cross-sectional view of an assembly consisting of a housing, terminals, and fasteners according to some embodiments of the present disclosure is shown;

[0020] Figure 5 It shows Figure 4 An enlarged schematic diagram of part A of the component shown.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100 represents electrical equipment, and 101 represents installation space;

[0023] 1 is the shell, 11 is the mounting groove, 111 is the contact surface, 112 is the inclined surface, 113 is the clearance surface, and 12 is the first through hole;

[0024] 2 is a terminal block, 21 is a connecting part, 211 is a first limiting surface, 22 is a deformable part, 221 is a first end, 222 is a second end, 223 is a second limiting surface, 23 is a protrusion, 24 is an interference part, 25 is a wiring part, and 251 is a second through hole.

[0025] 3 is a fastener, 31 is a pressing part, 32 is a fixing part, and 33 is the main body part;

[0026] 4 represents fasteners; 5 represents the top cover. Detailed Implementation

[0027] Embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0028] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0029] As described above, terminal blocks are critical components in electrical equipment used for connecting, securing, and protecting conductors (e.g., cables, wires). Terminal blocks in conventional electrical equipment are typically securely mounted to the housing using fasteners. However, since the housing is usually made of plastic and is prone to deformation at low temperatures, the strength of the connection between the terminal blocks, fasteners, and housing is affected. Based on this, embodiments of this disclosure provide an electrical device to at least partially solve the aforementioned problems. In the following sections, [further details will be provided]. Figures 1 to 5 The principles of this disclosure are described.

[0030] Figure 1 A partial structural schematic diagram of an electrical device 100 according to some embodiments of the present disclosure is shown. Figure 2 A schematic diagram of the structure of the housing 1 according to some embodiments of the present disclosure is shown. For example... Figure 1 As shown, the electrical device 100 described herein includes a housing 1, terminals 2, fasteners 3, fasteners 4, and a top cover 5. The top cover 5 is disposed on the housing 1 and covers the housing 1 to protect the components inside the housing 1. Figure 1 and 2 As shown, the housing 1 may include a mounting groove 11 and a first through hole 12 communicating with the mounting groove 11. The mounting groove 11 may be disposed on the side of the housing 1 opposite to the top cover 5, and the mounting groove 11 includes a contact surface 111. The first through hole 12 is used for the fastener 3 to pass through the housing 1.

[0031] Figure 3 A schematic diagram of the structure of a terminal block 2 according to some embodiments of the present disclosure is shown. Figure 4 A cross-sectional view of an assembly consisting of a housing 1, a terminal block 2, and a fastener 3 according to some embodiments of the present disclosure is shown. Figure 5 It shows Figure 4 An enlarged schematic diagram of part A of the component shown. (See attached image.) Figures 3 to 5 As shown, in some embodiments, the terminal block 2 includes a connecting portion 21 and a deformable portion 22. The connecting portion 21 and the deformable portion 22 are disposed within the mounting groove 11, and the connecting portion 21 abuts against the contact surface 111. The deformable portion 22 is located on one side of the connecting portion 21 and together with the connecting portion 21, forms a mounting space 101. The mounting space 101 is used for the fastener 3 to pass through the terminal block 2.

[0032] Return to reference Figure 3 In some embodiments, the deformable portion 22 includes a first end portion 221 and a second end portion 222. The first end portion 221 is connected to the connecting portion 21, and the second end portion 222 is spaced apart from the connecting portion 21. That is, a notch is provided on the terminal 2. Furthermore, refer to... Figure 4 and Figure 5Along the axial direction X of the first perforation 12, the second end 222 is further away from the contact surface 111 than the connecting portion 21. In this way, the second end 222 can deform when pressed and can store energy.

[0033] refer to Figures 3 to 5 Furthermore, when the fastener 3 is not pressing the second end 222, the end face of the second end 222 that is away from the contact surface 111 is further away from the contact surface 111 than the end face of the connecting portion 21 that is away from the contact surface 111. As a result, it is easier for the fastener 3 to press the second end 222.

[0034] refer to Figures 1 to 5 In some embodiments, the fastener 3 can pass sequentially through the mounting space 101 and the first through hole 12, and press the second end 222 to deform it. More specifically, the second end 222 can deform toward the contact surface 111 and can store energy. In this way, when the fastener 3 presses the second end 222, the second end 222 can provide a preload to the connecting portion 21, thereby causing the connecting portion 21 to abut against the contact surface 111. Furthermore, since the end of the fastener 3 that protrudes from the first through hole 12 is connected to the housing 1, the fastener 3 can securely assemble the terminal 2 to the housing 1.

[0035] According to the embodiments of this disclosure, the fastener 3 can securely assemble the terminal 2 and the housing 1 together. Furthermore, since the fastener 3 can press the second end 222, when the housing 1 deforms in a low-temperature environment, for example, when it deforms along the axial direction X of the first through hole 12, the second end 222 can provide a preload and drive the connecting portion 21 to always abut against the contact surface 111 of the housing 1, preventing loosening between the terminal 2 and the housing 1. Therefore, according to the embodiments of this disclosure, the terminal 2, the fastener 3, and the housing 1 are securely and stably connected to each other, and the degree of security is not affected by low temperatures.

[0036] According to embodiments of this disclosure, the fastener 3 can be of various types known or available in the future, as long as it can assemble the terminal block 2 and the housing 1. For example, refer to Figure 4 and Figure 5In some embodiments, the fixing member 3 may include a pressing part 31, a fixing part 32, and a main body part 33 disposed between the pressing part 31 and the fixing part 32. The pressing part 31, the fixing part 32, and the main body part 33 may be formed into an integral structure in any manner, such as integral processing or welding, etc., and the embodiments disclosed herein are not limited in this way. The pressing part 31 can press the second end 222 and can cause the second end 222 to deform toward the contact surface 111. The main body part 33 can pass through the mounting space 101 and the first through hole 12, and can be configured as a cylinder. The fixing part 32 can pass through the first through hole 12 and is connected to the housing 1.

[0037] refer to Figure 4 and Figure 5 Furthermore, the end of the fixing part 32 away from the pressing part 31 can be slotted. After the fixing part 32 passes through the first through hole 12, the operator can insert a tool into the slot and cause the slot wall of the fixing part 32 to expand in all directions, so that the fixing part 32 can be connected to the housing 1.

[0038] In some embodiments, return to reference Figure 3 The terminal block 2 may also include at least one protrusion 23, for example, three protrusions 23. (Return to Reference) Figure 4 and Figure 5 At least one protrusion 23 may be provided on the side of the connecting portion 21 facing away from the contact surface 111. The fixing member 3 can move to a position abutting against at least one protrusion 23 during the pressing of the second end 222. Furthermore, since the connecting portion 21 abuts against the contact surface 111, the fixing member 3 stops moving when it moves to the position abutting against at least one protrusion 23, and the deformation portion 22 is stopped from being pressed.

[0039] It is understood that, through the design of at least one protrusion 23, the fastener 3 stops pressing the second end 222 when it moves to the position of abutting against at least one protrusion 23, so as to avoid metal fatigue caused by excessive deformation of the second end 222, thereby avoiding cracks or even breakage of the terminal 2.

[0040] It should be noted that the numbers, values, and quantities mentioned above, as well as elsewhere in this disclosure, are exemplary and are not intended to limit the scope of this disclosure in any way. Any other suitable numbers, values, and quantities are possible. For example, depending on the specific application scenario and requirements, at least one protrusion 23 may include more or fewer protrusions 23.

[0041] In some embodiments, return to reference Figure 2 The mounting groove 11 may further include an inclined surface 112 and a clearance surface 113. The inclined surface 112 may be disposed between the contact surface 111 and the clearance surface 113. (See reference) Figure 4and Figure 5 Along the axial direction X, the clearance surface 113 can be located at a position corresponding to the deformable part 22 and spaced apart from the deformable part 22. In this way, regardless of whether the deformable part 22 is stopped from being pressed or not, space is reserved in the mounting groove 11 for the deformation of the deformable part 22, so as to avoid the problem that the deformable part 22 cannot be pressed due to interference from the mounting groove 11.

[0042] refer to Figures 3 to 5 Furthermore, when the second end 222 is not pressed by the fastener 3, the end face of the adjacent contact surface 111 of the second end 222 is further away from the contact surface 111 than the end face of the adjacent contact surface 111 of the connecting portion 21. As a result, the second end 222 is spaced a sufficiently large distance from the clearance surface 113, further reducing the possibility of the deformable portion 22 being interfered with by the mounting groove 11.

[0043] Return to reference Figure 1 and Figure 2 In some embodiments, the first perforation 12 may be provided on the inclined surface 112 and the clearance surface 113, and may extend toward the upper cover 5. Of course, in other embodiments, the first perforation 12 may also be provided on the inclined surface 112, the clearance surface 113, and the contact surface 111.

[0044] Further, refer to Figure 2 and Figure 5 Along the axial direction X, the contact surface 111 and the inclined surface 112 can be located at positions corresponding to the connecting portion 21. It is understood that... Figure 5 The inclined surface 112 is not shown because it is blocked by the terminal block 2 and the fastener 3.

[0045] Further, refer to Figure 2 and Figure 5 The inclined surface 112 can be spaced apart from the connecting portion 21. As described above, the deformable portion 22 needs to avoid interference with the mounting groove 11; therefore, along the axial direction X, the clearance surface 113 is farther away from the connecting portion 21 than the contact surface 111. The inclined surface 112, as a transition surface between the clearance surface 113 and the contact surface 111, needs to be spaced apart from the connecting portion 21. In this way, interference of the deformable portion 22 with the mounting groove 11 can be avoided.

[0046] Return to reference Figures 3 to 5 In some embodiments, the connecting portion 21 may include a first limiting surface 211. The deformable portion 22 may include a second limiting surface 223 disposed opposite to the first limiting surface 211. The first limiting surface 211 and the second limiting surface 223 form an installation space 101. Furthermore, the first limiting surface 211 and the second limiting surface 223 may abut against the fixing member 3, and more specifically against the main body portion 33, to ensure the stability of the connection between the fixing member 3 and the terminal block 2.

[0047] Continue to refer to Figures 3 to 5 In some embodiments, the terminal block 2 may further include an interference portion 24 disposed on the second limiting surface 223. The interference portion 24, the first limiting surface 211, and the second limiting surface 223 abut against the fixing member 3. It is understood that due to the notch on the terminal block 2, the deformable portion 22 can extend outward in the radial direction of the first through hole 12. In this way, the fixing member 3 can pass through the mounting space 101, and the connection between the fixing member 3 and the terminal block 2 in the radial direction is ensured to be stable.

[0048] Further reference Figure 3 The end face of the interference part 24 facing the first limiting surface 211 can be a plane, so the interference part 24 can interfere with the fixing member 3, thereby ensuring the stability of the connection between the fixing member 3 and the terminal 2 in the radial direction.

[0049] Continue to refer to Figure 1 and Figure 4 In some embodiments, the terminal block 2 may further include a wiring portion 25. The wiring portion 25 is partially disposed within the mounting groove 11 and is adapted to connect with a fastener 4 for mounting an external cable. The fastener 4 may include, for example, a fastening screw. Further, the wiring portion 25 may also include a second through hole 251 for the fastener 4 to pass through the wiring portion 25.

[0050] The terminal blocks according to the embodiments of this disclosure can be of various types, and the embodiments of this disclosure do not limit them. For example, the terminal block 2 may include a ground terminal block, a terminal block for connecting to an external power source, or a terminal block for connecting to an external load, etc.

[0051] The connection design of the terminal block 2, the fixing member 3, and the housing 1 according to embodiments of this disclosure can be applied to various electrical devices to at least partially solve the above-mentioned problems. It should be understood that the above-described connection design according to embodiments of this disclosure can also be applied to other components, and embodiments of this disclosure do not limit this application.

[0052] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An electrical device (100), characterized by The electrical equipment (100) includes: The housing (1) includes a mounting groove (11) and a first through hole (12) communicating with the mounting groove (11), the mounting groove (11) including a contact surface (111); A terminal block (2) includes a connecting portion (21) and a deformable portion (22), the connecting portion (21) and the deformable portion (22) being disposed within the mounting groove (11). The deformable portion (22) is located on one side of the connecting portion (21) and forms a mounting space (101) with the connecting portion (21). The deformable portion (22) includes a first end (221) and a second end (222), the first end (221) being connected to the connecting portion (21), and the second end (222) being spaced apart from the connecting portion (21). The connecting portion (21) abuts against the contact surface (111), and along the axial direction (X) of the first through hole (12), the second end (222) is further away from the contact surface (111) than the connecting portion (21). The fastener (3) passes through the mounting space (101) and the first through hole (12) in sequence and presses the second end (222) to deform the second end (222). The end of the fastener (3) that passes through the first through hole (12) is connected to the housing (1).

2. The electrical device (100) according to claim 1, characterized in that The terminal block (2) further includes at least one protrusion (23) disposed on the side of the connecting portion (21) away from the contact surface (111), and the fixing member (3) is adapted to move to a position abutting against the at least one protrusion (23) during the pressing of the second end (222).

3. The electrical device (100) according to claim 2, characterized in that The mounting groove (11) further includes an inclined surface (112) and a clearance surface (113). The inclined surface (112) is disposed between the contact surface (111) and the clearance surface (113). Along the axial direction (X), the clearance surface (113) is located at a position corresponding to the deformable part (22) and spaced apart from the deformable part (22).

4. The electrical device (100) according to claim 3, characterized in that The electrical equipment (100) also includes an upper cover (5) disposed on the housing (1), wherein the first perforation (12) is disposed on the inclined surface (112) and the clearance surface (113) and extends toward the upper cover (5).

5. The electrical equipment (100) according to claim 3, characterized in that, Along the axial direction (X), the contact surface (111) and the inclined surface (112) are located at positions corresponding to the connecting portion (21).

6. The electrical device (100) according to claim 5, characterized in that The inclined surface (112) is spaced apart from the connecting portion (21).

7. The electrical device (100) according to claim 1, characterized in that The connecting part (21) includes a first limiting surface (211), and the deformable part (22) includes a second limiting surface (223) disposed opposite to the first limiting surface (211), and the first limiting surface (211) and the second limiting surface (223) form the installation space (101).

8. The electrical device (100) according to claim 7, characterized in that The terminal block (2) further includes an interference portion (24) disposed on the second limiting surface (223), and the interference portion (24), the first limiting surface (211) and the second limiting surface (223) respectively abut against the fixing member (3).

9. The electrical device (100) according to claim 1, characterized in that The terminal block (2) further includes a wiring portion (25) which is partially disposed within the mounting groove (11) and is adapted to connect to a fastener (4) for mounting an external cable.

10. The electrical device (100) according to claim 1, characterized in that The fastener (3) includes a pressing part (31), a fixing part (32), and a main body part (33) disposed between the pressing part (31) and the fixing part (32). The pressing part (31) presses the second end (222). The main body part (33) passes through the mounting space (101) and the first through hole (12) in sequence, and the fixing part (32) is connected to the housing (1).

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