Wire connection device
By improving the structure of the wire connection device, the bus and spring steel sheet are arranged at a specific angle, and the cover and housing are used to clamp the bus together, which solves the problems of unstable clamping force and poor contact, and improves the stability and safety of the wire connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIN BI DIAN ZI DONG GUAN YOU XIAN GONG SI
- Filing Date
- 2025-07-29
- Publication Date
- 2026-08-04
AI Technical Summary
Existing wire connection devices have unstable clamping force when clamping wires of different diameters, which can easily lead to wires coming loose, and poor contact between the wires and the bus increases the risk of electric shock and short circuit.
The structure of the wire connection device is improved so that the bus and the spring steel plate are arranged at a specific angle. The pressing protrusion of the cover and the housing are used to clamp the bus and the spring steel plate together, ensuring that the wire moves in a specific direction and increasing the clamping force to prevent the bus and the housing from shifting.
It improves the contact stability between the wire and the bus, reduces the risk of wire detachment and poor contact, and reduces the possibility of electric shock and short circuit.
Smart Images
Figure CN224595819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a wire connection device that can connect multiple wires together to ensure the smooth flow of current, and particularly to a wire connection device that can generate a large clamping force on the wires. Background Technology
[0002] Generally speaking, electrical connection devices are mainly used to electrically connect electrical products to an external power source, enabling the electrical products to be temporarily or permanently electrically connected to an external power source through the electrical connection device.
[0003] Please see Figure 1A and Figure 1B As shown, the basic structure of a common existing wire connection device 50 includes a housing 51, a connecting unit 52, and a cover 53. The housing 51 is hollow, forming an accommodating space 511 inside. A mounting opening 512 communicating with the accommodating space 511 is formed on one side of the housing 51. The connecting unit 52 is disposed inside the accommodating space 511 and comprises two parts: a spring steel sheet 521 and a main line 522. 521 has a carrier portion 521a connected to the bus 522 and a clamping portion 521b extending from the carrier portion 521a. The clamping portion 521b is located in the central section of the accommodating space 511. In addition, a cover 53 is formed through multiple wire passages 531. The cover 53 is engaged inside the accommodating space 511, so that the cover 53 is located on one side of the clamping portion 521b to cover the mounting opening 512. Thus, each wire passage 531 is connected to the accommodating space 511.
[0004] Please see Figure 1CThe diagram illustrates a specific application of a conventional wire connection device 50 in conjunction with a wire 54. The wire 54 is inserted through the wire passage 531 of the cover 53 into the receiving space 511 of the housing 51. This causes the wire 54 to be pressed against the clamping portion 521b of the spring steel sheet 521. Consequently, the clamping portion 521b deforms to generate a clamping force acting on the wire 54, thus securing it to the wire 54. However, the deformation of the clamping portion 521b directly affects the magnitude of the clamping force, and the deformation of the clamping portion 521b varies depending on the diameter of the wire 54. When a larger diameter wire 54 enters the receiving space 511 along the insertion direction D, the larger diameter wire 54 exerts a greater squeezing effect on the clamping part 521b, resulting in a relative increase in the deformation of the clamping part 521b. Conversely, when a smaller diameter wire 54 enters the receiving space 511 along the insertion direction D, the smaller diameter wire 54 exerts a less squeezing effect on the clamping part 521b, resulting in a relative decrease in the deformation of the clamping part 521b. Consequently, the clamping force generated by the clamping part 521b is insufficient to secure the wire 54, causing the wire 54 to easily loosen from the wire connection device 1.
[0005] Furthermore, when the clamping part 521b is deformed by the wire 54, the clamping part 521b will swing towards the cover 53. The swinging clamping part 521b will cause the bus 522 of the conductor unit 52 and the bearing part 521a of the spring steel sheet 521 to easily flip upward. As a result, the wire 54 is very likely to be misaligned with the bus 522 during the clamping process of the clamping part 521b. As a result, the wire 54 cannot make proper contact with the bus 522. The result may be that the current cannot be conducted smoothly, or it may significantly increase the risk of electric shock and short circuit, greatly increasing the potential danger for users when operating this type of existing wire connection device 50. Utility Model Content
[0006] The main purpose of this utility model is to provide a wire connection device that optimizes the structural form of the spring steel sheet and the bus in the wire connection device. As the wire is inserted into the wire connection device along the insertion direction and abuts against the clamping part of the spring steel sheet, the improved bus can guide the wire to move synchronously in a specific direction, effectively increasing the deformation of the clamping part of the spring steel sheet, thereby significantly strengthening the clamping force of the clamping part on the wire, ensuring the firmness of the wire connection to the wire connection device, and effectively avoiding problems such as poor connection or loosening between the wire and the wire connection device caused by mechanical stress or external force.
[0007] The secondary objective of this utility model is to provide a wire connection device, mainly composed of a housing, a cover, a spring steel sheet, and a bus. The wire connection device improves the connection pattern between the housing, cover, spring steel sheet, and bus, so that when the cover is connected to the housing, the housing and cover together form a clamping structure to secure the spring steel sheet and bus. When the wire is inserted into the wire connection device and abuts against the clamping part of the spring steel sheet, the bus can effectively prevent any form of displacement from the housing. Thus, multiple wires can reliably contact the bus, thereby eliminating the phenomenon that multiple wires cannot conduct smoothly due to poor contact between the wire and the bus, and significantly reducing the risk of electric shock and short circuit.
[0008] Another objective of this invention is to provide an improved wire connection device with an improved structure. When a wire is inserted into the improved wire connection device, the improved wire connection device can restrict the direction of wire movement. When the wire contacts the clamping part of the spring steel sheet, the wire will not move in other directions inside the wire connection device, but will be firmly pressed against the clamping part of the spring steel sheet. This allows the clamping part to deform and secure the wire, thereby ensuring that the wire can reliably contact the bus each time it is inserted into the improved wire connection device, thus improving the stability of electrical conduction between the wire and the bus.
[0009] Another objective of this utility model is to provide a wire connection device that, when the housing and the cover are connected to each other, ensures that the housing and the cover can be effectively and securely clamped and fixed together to the spring steel sheet and the bus, thereby effectively preventing any unexpected displacement of the spring steel sheet and the bus inside the housing, so that the spring steel sheet and the bus can be accurately placed in the default designated position inside the housing.
[0010] To achieve the aforementioned objective, this utility model provides a wire connection device, which can be inserted by a plurality of wires along a insertion direction, and includes: a housing, a spring steel sheet, and a bus.
[0011] The aforementioned spring steel sheet is located inside the aforementioned housing and has a bearing portion that contacts the aforementioned housing and a clamping portion that extends from the aforementioned bearing portion. The aforementioned bearing portion is relatively inclined to the aforementioned clamping portion, such that a first obtuse angle is formed between the aforementioned bearing portion and the clamping portion. The aforementioned bearing portion has a first bearing area and a second bearing area located between the aforementioned first bearing area and the clamping portion. The aforementioned first bearing area is relatively inclined to the aforementioned second bearing area, such that a second obtuse angle is formed between the aforementioned first bearing area and the second bearing area. The aforementioned clamping portion has a plurality of connecting frames. Each of the aforementioned connecting frames forms a window through which the aforementioned wire can pass and a spring piece extending from the edge of the aforementioned window.
[0012] The bus is connected to the carrier and has a first bus that overlaps the first carrier area, a second bus that overlaps the second carrier area, and a first bend that is located between the first bus and the second bus. The first bend is used to make the first bus tilt relative to the second bus, so that a third obtuse angle is formed between the first bus and the second bus.
[0013] In this embodiment, the interior of the outer shell is provided with an inclined support surface and a longitudinal stop surface spaced apart from the inclined support surface. The inclined support surface is relatively inclined to the longitudinal stop surface. The clamping part can contact the inclined support surface, and the bearing part can contact the longitudinal stop surface, so that the spring steel sheet can be restricted between the inclined support surface and the longitudinal stop surface.
[0014] The aforementioned spring has a connecting end adjacent to the window and a contact end spaced apart from the connecting end, and is deformed by the aforementioned wire moving along the aforementioned insertion direction. When the aforementioned spring is not compressed by the aforementioned wire, the aforementioned contact end is located directly above the aforementioned second busbar. When the aforementioned spring is compressed by the aforementioned wire, the aforementioned spring will deform in a direction away from the aforementioned bearing portion so that the aforementioned contact end is located directly above the aforementioned first busbar.
[0015] The bus further includes multiple third bus sections protruding from the second bearing area and a second bend between the second bus section and the multiple third bus sections. The multiple third bus sections can be located in pairs in one of the windows of the clamping section. The second bend is used to make the second bus section and the third bus section tilted to each other, so that a fourth obtuse angle is formed between the second bus section and the third bus section.
[0016] In a preferred embodiment, the housing comprises: a housing and a cover. The interior of the housing forms a receiving space for accommodating the spring steel sheet and the bus, and a mounting opening communicating with the receiving space is provided on one side. The receiving space is divided into a first receiving area for accommodating the support portion and a second receiving area arranged on one side of the first receiving area by the clamping portion. The first receiving area is connected to the second receiving area by the window. The cover has a plurality of pressing protrusions and is used to cover the mounting opening, allowing the plurality of pressing protrusions to be inserted into the interior of the first receiving area to contact the bus. The plurality of pressing protrusions and the housing can be clamped together to the support portion and the bus.
[0017] Furthermore, the opening direction of the aforementioned mounting opening is parallel to the aforementioned insertion direction so that the aforementioned mounting opening connects to the aforementioned second receiving area. When the aforementioned cover covers the aforementioned mounting opening, multiple of the aforementioned pressing protrusions will pass through the window of the aforementioned clamping portion and be inserted into the interior of the aforementioned first receiving area. Each of the aforementioned windows is provided with a threading area that allows the aforementioned wire to pass through and two threading block areas with a height smaller than the aforementioned threading area. The two aforementioned threading block areas are respectively located on opposite sides of the aforementioned threading area and are inserted one-to-one by one of the aforementioned pressing protrusions. Thus, each of the aforementioned spring pieces extends from the top edge of the aforementioned threading area of one of the aforementioned windows into the interior of the aforementioned first receiving area.
[0018] When two of the above-mentioned through-block areas of the same window are respectively penetrated by one of the above-mentioned pressing protrusions, the two above-mentioned pressing protrusions that are penetrated in the same window can be arranged at intervals on one side of the above-mentioned spring piece, so that a protrusion spacing is formed between the two above-mentioned pressing protrusions, and the width of the above-mentioned spring piece is set to a spring piece width that is longer than the above-mentioned protrusion spacing. Thus, when viewed along the above-mentioned insertion line direction, the above-mentioned spring piece will cover a portion of the above-mentioned pressing protrusions.
[0019] In addition, one side of the aforementioned pressing protrusion is provided with a guide surface and a pressure surface adjacent to the guide surface. During the process of the cover covering the installation opening, the guide surface will first contact the second junction, and then the pressing protrusion will be guided by the guide surface to the top of the second junction, so that the pressure surface can contact the second junction.
[0020] Furthermore, the aforementioned cover has a locking body that engages inside the aforementioned accommodating space and a covering body located outside the aforementioned accommodating space, and a plurality of threading channels are formed through the covering body toward the locking body, such that the locking body forms a channel opening communicating with the threading channels, and a plurality of the aforementioned pressing protrusions are provided on the locking body, with every two of the aforementioned pressing protrusions located on opposite sides of a single aforementioned channel opening, wherein the aforementioned cover has a plurality of recesses around the aforementioned communicating opening, such that the locking body forms a support rib between every two of the aforementioned recesses, and each of the aforementioned support ribs can be adjacent to at least one of the aforementioned pressing protrusions.
[0021] The feature of this utility model is that the first bending part of the bus is used to make the first and second bus sections of the bus tilted relative to each other, so that a third obtuse angle is formed between the first bus section and the second bus section. Therefore, when the bus is connected to the support part of the spring steel sheet, the first bus section will overlap the first support area of the support part, and the second bus section will overlap the second support area of the support part. Thus, when both the spring steel sheet and the bus are placed inside the housing, the second bus section will be tilted due to the third obtuse angle. As the wire moves along the insertion direction and contacts the second bus section of the bus, the second bus section of the bus can guide the wire to move in a specific direction to increase the deformation of the clamping part, so that the clamping part can increase the clamping force of the wire. Furthermore, when the wire moves to the first bus section, it is ensured that the direction of the clamping force is almost perpendicular to the wire, thereby reducing the chance of the wire retracting from the wire connection device 1.
[0022] In addition, the cover has multiple pressing protrusions. When the cover covers the installation opening of the housing, each pressing protrusion is inserted into the first receiving area containing the bus, allowing each pressing protrusion to directly contact the pressure surface of the bus. Thus, the multiple pressing protrusions, together with the housing, can clamp the bearing part of the spring steel sheet and the bus. In this way, when the wire is inserted into the wire connection device and abuts against the wire clamping part of the spring steel sheet, the bus is clamped by the multiple pressing protrusions and the housing, which can effectively prevent any form of displacement between the bus and the housing. This ensures that multiple wires can reliably contact the bus, thereby eliminating the phenomenon that multiple wires cannot conduct smoothly due to poor contact between the wire and the bus, and greatly reducing the risk of electric shock and short circuit.
[0023] Furthermore, the cover conceals the installation opening of the housing, allowing each pair of pressure protrusions of the cover to pass through one of the windows of the spring steel sheet. The two pressure protrusions passing through the same window are spaced apart on one side of the spring steel sheet's spring clip, with the distance between the two pressure protrusions being less than the width of the spring clip. Viewed along the insertion direction, the spring clip covers a portion of the pressure protrusions. Thus, when the wire is inserted into the wire connector and passes through the window of the spring steel sheet, the two pressure protrusions restrict the direction of wire movement. This ensures that when the wire contacts the clamping part of the spring steel sheet, the wire will only move towards the spring clip of the clamping part through the two pressure protrusions, and will not move in other directions inside the wire connector. Consequently, the wire can reliably push against the clamping part of the spring steel sheet, causing the clamping part to deform and firmly clamp the wire. This ensures that the wire can reliably contact the bus every time it is inserted into the wire connector, thereby improving the stability of electrical conduction between the wire and the bus.
[0024] Furthermore, the pressure protrusions of the cover have guide surfaces, which allow the guide surfaces to first contact the edge of the bus when the cover covers the installation opening of the housing. This guides the pressure protrusions to the pressure-bearing surface of the bus, allowing the pressure-applying surface of the pressure protrusions to contact the pressure-bearing surface. This ensures that each time the cover is connected to the housing, the housing and the multiple pressure protrusions can effectively and securely clamp and fix the spring steel sheet and the bus together, thereby effectively preventing any unexpected displacement of the spring steel sheet and the bus inside the housing. This ensures that the spring steel sheet and the bus can be accurately positioned in the default designated position inside the housing. Attached Figure Description
[0025] Figure 1A An exploded view of an existing wire connection device;
[0026] Figure 1B A cross-sectional view of an existing wire connection device;
[0027] Figure 1C A schematic diagram illustrating the use of existing wire connection devices in conjunction with wires;
[0028] Figure 2 This is a schematic diagram of the wire connection device used in conjunction with multiple wires in the first preferred embodiment of the present invention;
[0029] Figure 3 This is a perspective view of the wire connection device in the first preferred embodiment of the present invention;
[0030] Figure 4 This is an exploded view of the wire connection device in the first preferred embodiment of the present invention;
[0031] Figure 5A This is an exploded cross-sectional view of the wire connection device in the first preferred embodiment of the present invention;
[0032] Figure 5B for Figure 5A Exploded cross-sectional view of the central bus connecting to the spring steel sheet;
[0033] Figure 6 This is a cross-sectional view of the wire connection device in the first preferred embodiment of the present invention;
[0034] Figure 7 This is a schematic diagram showing the guide surface of the pressing bump contacting the edge of the bus.
[0035] Figure 8 This is a schematic diagram of a spring steel sheet;
[0036] Figure 9 A schematic diagram showing the pressing protrusion passing through the window;
[0037] Figure 10A A schematic diagram illustrating the use of an electrical wire close to a spring steel sheet;
[0038] Figure 10B A schematic diagram illustrating the use of a wire clamped by a spring clip;
[0039] Figure 11 This is an exploded view of the wire connection device in the second preferred embodiment of the present invention;
[0040] Figure 12 This is a cross-sectional view of the wire connection device in the second preferred embodiment of the present invention.
[0041] Explanation of reference numerals in the attached drawings: 1-Wire connection device; 10-Outer casing; 11-Angled support surface; 12-Angled stop surface; 13-Longitudinal stop surface; 14-Casing; 141-Accommodation space; 141a-First accommodation area; 141b-Second accommodation area; 142-Test port; 143-Mounting opening; 144-Positioning partition; 145-Stop block; 146-Wire insertion hole; 15-Cap; 151- 152-Clad body; 153-Cushioning protrusion; 153a-Pressure surface; 153b-Guide surface; 154-Threading channel; 155-Channel opening; 156-Recess; 157-Supporting rib; 20-Spring steel sheet; 21-Thread clamping part; 211-Connecting frame; 212-Window; 212a-Threading area; 212b-Threading block area; 213-Spring piece; 213a-Connection End; 213b-Contact end; 22-Bearing part; 221-First bearing area; 222-Second bearing area; 223-Engaging hole; 30-Bus line; 31-Contact surface; 32-Pressure surface; 33-Engaging block; 34-First busbar; 35-Second busbar; 36-Third busbar; 37-First bend; 38-Second bend; 40-Wire; A1-First obtuse angle; A2-Second obtuse angle; A3-Third obtuse angle; A4-Fourth obtuse angle; D-Wire insertion direction; L-Protrusion spacing; W-Spring width; 50-Existing wire connection device; 51-Housing; 511-Accommodation space; 512-Mounting opening; 52-Conducting unit; 521-Spring steel sheet; 521a-Bearing part; 521b-Wire clamping part; 522-Bus line; 53-Cap; 531-Wire passage; 54-Wire. Detailed Implementation
[0042] The present invention will be further described below with reference to specific embodiments and accompanying drawings. The advantages and features of the present invention will become clearer with the description.
[0043] Please see Figure 2 , Figure 3 and Figure 4As shown, in the first preferred embodiment, the present invention provides a wire connection device 1 for use with a plurality of wires 40, wherein the plurality of wires 40 are inserted into the wire connection device 1 along a wire insertion direction D, so that the plurality of wires 40 are electrically connected to each other through the wire connection device 1. The wire connection device 1 is mainly composed of a housing 10, a spring steel sheet 20 and a bus 30.
[0044] Please see Figure 3 , Figure 4 , Figure 5A , Figure 5B and Figure 6 As shown, the interior of the outer casing 10 is provided with an inclined support surface 11, an inclined baffle surface 12 parallel to the inclined support surface 11, and a longitudinal baffle surface 13. Both the inclined support surface 11 and the inclined baffle surface 12 are inclined relative to the longitudinal baffle surface 13. The inclined baffle surface 12 is positioned between the inclined support surface 11 and the longitudinal baffle surface 13, such that the inclined support surface 11, the inclined baffle surface 12, and the longitudinal baffle surface 13 are arranged alternately. In this embodiment, the outer casing 10 has two parts: a shell 14 and a cover 15. The shell 14 is hollow, forming an accommodating space 141 inside. Furthermore, different sides of the shell 14 are respectively provided with a test port 142 and a mounting opening 1. 43. Both the test port 142 and the mounting opening 143 are connected to the accommodating space 141, and the outline of the test port 142 is smaller than the outline of the mounting opening 143. In this embodiment, the housing 14 is provided with a plurality of positioning partitions 144 arranged at intervals and a stop block 145 located below the positioning partitions 144 inside the accommodating space 141. The positioning partitions 144 are provided with an inclined baffle 12 at one end near the mounting opening 143, and the stop block 145 is provided with a longitudinal baffle 13 at one end near the mounting opening 143. The opening directions of both the test port 142 and the mounting opening 143 are parallel to the insertion direction D, and the test port 142 and the mounting opening 143 are located on opposite sides of the accommodating space 141.
[0045] like Figure 3 , Figure 4 , Figure 5A , Figure 5B and Figure 6As shown, the cover 15 has a locking body 151 and a covering body 152. The locking body 151 of the cover 15 has an inclined support surface 11 on the side away from the covering body 152. The locking body 151 of the cover 15 protrudes from the inclined support surface 11 in a direction away from the covering body 152 to form a plurality of pressing protrusions 153. The outline of the locking body 151 is smaller than the outline of the mounting opening 143 of the housing 14, while the outline of the covering body 152 is larger than the outline of the mounting opening 143. One side of the pressing protrusion 153 has a pressure surface 153a inclined to the insertion direction D and a guide surface 153b adjacent to the pressure surface 153a. In this embodiment, the cover 15 protrudes from the covering body 152 toward the locking body. Multiple threading channels 154 are formed through the 151, so that the engaging body 151 has multiple channel openings 155 on the inclined support surface 11, each connecting one-to-one with one of the threading channels 154. Each pair of pressing protrusions 153 are located on opposite sides of a single channel opening 155. Furthermore, the engaging body 151 has multiple recesses 156 around the channel openings 155, so that a support rib 157 is formed between each pair of recesses 156. Each support rib 157 is adjacent to at least one pressing protrusion 153, so that the side of each pressing protrusion 153 has a support rib 157. Thus, the supporting ribs 157 increase the structural strength of the pressing protrusion 153. Please refer to [link to relevant documentation]. Figure 6 and Figure 7 As shown, the cover 15 is inserted into the receiving space 141 of the housing 14 through the mounting opening 143, so that the engaging body 151 of the cover 15 engages inside the receiving space 141, while the covering body 152 of the cover 15 contacts the end face of the housing 14 and is located outside the receiving space 141.
[0046] Please see Figure 4 , Figure 5A , Figure 5B , Figure 6 , Figure 8 and Figure 9 As shown, the spring steel sheet 20 has two parts: a clamping part 21 and a supporting part 22. The clamping part 21 has multiple connecting frames 211 formed in the supporting part 22. A window 212 is formed through each connecting frame 211 in the clamping part 21, making the connecting frame 211 ring-shaped. A deformable spring piece 213 extends from the top edge of each window 212. The spring piece 213 has a connecting end 213a adjacent to the window 212 and a contact end 213b spaced apart from the connecting end 213a. The spring piece 213 gradually moves away from the window 212 from the connecting end 213a towards the contact end 213b, allowing the contact end 213b of the spring piece 213 to approach the supporting part 22. Figure 9As shown, a portion of the window 212 is designated as a threading area 212a, while the remaining area of the window 212 is designated as two threading block areas 212b. The top edge of the threading area 212a is adjacent to the connecting end 213a, such that the spring piece 213 is positioned opposite the threading area 212a. The height of the two threading block areas 212b is less than the height of the threading area 212a, making the outline of each threading block area 212b smaller than the outline of the threading area 212a. Furthermore, the threading block areas 212b are respectively located on opposite sides of the threading area 212a, giving the window 212 a convex shape. The lateral width of the spring piece 213 is set to a spring piece width W. In addition, the supporting part 22 is relatively inclined to the clamping part 21, such that the supporting part 22 and the clamping part... As shown in the figure, a first obtuse angle A1 is formed between the two parts 21. The bearing part 22 has two parts: a first bearing area 221 and a second bearing area 222. The first bearing area 221 extends from the second bearing area 222 in a direction away from the clamping part 21. The second bearing area 222 extends from the connecting frame 211 to the first bearing area 221, so that the second bearing area 222 is located between the first bearing area 221 and the clamping part 21. The bearing part 22 forms a locking hole 223 through the second bearing area 222. The first bearing area 221 is relatively inclined to the second bearing area 222, so that a second obtuse angle A2 is formed between the first bearing area 221 and the second bearing area 222.
[0047] Please see Figure 5A , Figure 5B and Figure 6As shown, the spring steel sheet 20 can be placed inside the receiving space 141 of the housing 14 through the mounting opening 143 of the housing 14, so that the bearing portion 22 of the spring steel sheet 20 will gradually approach the longitudinal stop surface 13 of the stop block 145 after passing the inclined stop surface 12 of the positioning partition 144. Then, when the first bearing area 221 of the bearing portion 22 contacts the longitudinal stop surface 13, the connecting frame 211 of the clamping portion 21 will be adjacent to the inclined stop surface 12 of the positioning partition 144. This allows the bottom surface of the bearing portion 22 of the spring steel sheet 20 to contact the housing 14. Consequently, when the engaging body 151 of the cover 15 engages within the accommodating space 141 of the housing 14, the oblique support surface 11 of the cover 15 contacts the oblique support surface 11 of the clamping portion 21, thus confining the spring steel sheet 20 between the oblique support surface 11 and the longitudinal stop surface 13. When the spring steel sheet 20 is located inside the accommodating space 141, the accommodating space 141 is clamped... The connecting frame 211 of the wire portion 21 is divided into a first receiving area 141a and a second receiving area 141b arranged on one side of the first receiving area 141a. The first receiving area 141a is connected to the second receiving area 141b through the window 212 of the wire clamping portion 21. In this embodiment, the first receiving area 141a is connected to the test port 142 of the housing 14. The first receiving area 141a is used to receive the bearing portion 22 of the spring steel sheet 20 and the spring piece 213 of the wire clamping portion 21. The second receiving area 141b is connected to the mounting opening 143. The second receiving area 141b is used to receive the locking body 151 of the cover 15. In addition, the first bearing area 221 of the bearing portion 22 is horizontal in the first receiving area 141a, parallel to the wire insertion direction D, while the second bearing area 222 of the bearing portion 22 is inclined in the first receiving area 141a, inclined to the wire insertion direction D.
[0048] Please see Figure 4 , Figure 5A , Figure 5B and Figure 6As shown, the bus 30 has a contact surface 31 and a pressure surface 32 on opposite sides. A locking block 33 protrudes from the contact surface 31 and engages with the locking hole 223 of the support portion 22, allowing the contact surface 31 to contact the support portion 22. Consequently, the bus 30 is disposed inside the first receiving area 141a of the housing 14. In this embodiment, the bus 30 has a first busbar 34, a second busbar 35, multiple third busbars 36, a first bend 37, and a second bend 38. 8. The second busbar 35 has a locking block 33. The first bend 37 is located between the first busbar 34 and the second busbar 35. The first bend 37 allows the first busbar 34 to be tilted relative to the second busbar 35, forming a third obtuse angle A3 between the first and second busbars 34 and 35. The second bend 38 is located between the second busbar 35 and the plurality of third busbars 36. The second bend 38 allows the second busbar 35 to be tilted relative to the plurality of third busbars 36, forming a third obtuse angle A3 between the first and second busbars 34 and 35. A fourth obtuse angle A4 is formed between the three busbars 35 and 36. When the engaging block 33 engages with the engaging hole 223, allowing the contact surface 31 to contact the support portion 22, the first busbar 34 overlaps with the first support area 221 of the support portion 22, making the first busbar 34 face-to-face with the first support area 221 of the support portion 22. Consequently, the first busbar 34 can achieve a horizontal state within the first receiving area 141a through the first support area 221. Meanwhile, the second busbar 35 overlaps with the second support area 22 of the support portion 22. The bearing area 222 allows the second busbar 35 to contact the second bearing area 222 of the bearing section 22, thereby allowing the second busbar 35 to be inclined within the first receiving area 141a via the second bearing area 222. At the same time, multiple third busbars 36 protrude outward from the second bearing area 222 so that the multiple third busbars 36 are aligned one-to-one with one of the windows 212 of the spring steel sheet 20. In addition, the pressure-bearing surfaces 32 are distributed simultaneously among the first busbar 34, the second busbar 35 and the multiple third busbars 36.
[0049] Please see Figure 5A , Figure 5B , Figure 6 and Figure 7As shown, during the insertion of the cover 15 into the housing 14, each pressing protrusion 153 of the cover 15 passes through one of the through-block areas 212b of the wire clamping portion 21 one by one, such that a portion of the pressing protrusion 153 is located inside the window 212 of the wire clamping portion 21, while the remaining portion of the pressing protrusion 153 is inserted into the first receiving area 141a of the receiving space 141. Then, the guide surface 153b of each pressing protrusion 153 first contacts the edge of the second busbar 35 of the bus 30, and then the guide surface 153b guides the pressing protrusion 153 to the pressure-receiving surface 32 of the bus 30, ensuring that the pressure-applying surface 153a of the pressing protrusion 153 can contact the edge of the second busbar 35. The pressure-bearing surface 32 allows multiple pressing protrusions 153 and the housing 14 to be clamped together in the bearing portion 22 and the bus 30 of the spring steel sheet 20. In this embodiment, the pressure-bearing surface 32 located in the second bus section 35 can be in contact with the pressure-applying surface 153a, thereby increasing the clamping force that allows the pressing protrusions 153 and the housing 14 to be clamped together in the bearing portion 22 and the bus 30. In addition, since the second bus section 35 is inclined inside the first accommodating region 141a, when the pressure-applying surface 153a contacts the inclined second bus section 35, it helps to generate relative displacement between the pressing protrusions 153 and the bus 30, thereby increasing the contact area of the pressure-applying surface 153a in contact with the second bus section 35.
[0050] Please see Figure 8 and Figure 9 As shown, when the two through-block areas 212b of the same window 212 are respectively penetrated by one of the pressing protrusions 153 of the cover 15, the two pressing protrusions 153 that are inserted into the same window 212 are arranged at intervals on one side of the spring piece 213, so that a protrusion spacing L is formed between the two pressing protrusions 153, and the protrusion spacing L is smaller than the spring piece width W of the spring piece 213. Therefore, when viewed along the insertion direction D, the spring piece 213 will cover part of the pressing protrusions 153.
[0051] Please see Figure 10A and Figure 10B As shown, this illustrates a specific application where the wire 40 is inserted into the wire connection device 1. First, as... Figure 10AAs shown, the wire 40 first passes through the wire-passing channel 154 of the cover 15 along the insertion direction D. Then, the wire 40 passes through the channel opening 155 of the cover 15 and gradually approaches the spring piece 213 of the clamping part 21. As the wire 40 approaches the spring piece 213 from the channel opening 155, the two pressing protrusions 153 located on opposite sides of the channel opening 155 can restrict the movement direction of the wire 40, so that when the wire 40 contacts the clamping part 21 of the spring steel sheet 20, the wire 40 passes through... The two pressing protrusions 153 will only move toward the spring piece 213 of the clamping part 21, and will not move in other directions inside the wire connection device 1. Thus, the wire 40 can contact the second bus part 35 or the third bus part 36 of the bus 30 to reliably push against the spring piece 213. When the wire 40 just contacts the spring piece 213, the spring piece 213 is not squeezed by the wire 40 at this time, so that the contact end 213b of the spring piece 213 is located directly above the second bus part 35.
[0052] like Figure 10B As shown, the wire 40 pushes against the spring piece 213 of the clamping part 21, causing the spring piece 213 to deform towards the top side of the housing 14. This causes the connecting frame 211 of the clamping part 21 to swing towards the engaging body 151 of the cover 15. During the swinging of the connecting frame 211 towards the engaging body 151, the bearing part 22 of the spring steel sheet 20 and the bus 30 are clamped together by the multiple pressing protrusions 153 of the cover 15 and the housing 14, effectively preventing any displacement between the bus 30 and the housing 14. Furthermore, when the wire 40 passes the contact end 213b of the spring piece 213, the deformed spring piece 213 pushes downward against the wire 40, ensuring that the wire 40 can reliably contact the pressure surface 32 of the bus 30. This prevents multiple wires 40 from failing to conduct smoothly due to poor contact between the wire 40 and the bus 30. When the spring 213 is squeezed by the wire 40, the spring 213 deforms away from the bearing part 22 so that the contact end 213b is directly above the first bus 34. This ensures that the direction of the clamping force is almost perpendicular to the wire 40, thereby reducing the chance of the wire 40 coming loose from the wire connection device 1. In this embodiment, when the wire 40 contacts the second bus 35 or the third bus 36 of the bus 30, the second and third bus 35 and 36 are tilted because the bus 30 has third and fourth obtuse angles A3 and A4. As the wire 40 moves along the insertion direction D and contacts the second bus 35 or the third bus 36, the second and third bus 35 and 36 can guide the wire 40 to move in a specific direction to increase the deformation of the clamping part 21, so that the clamping part 21 can increase the clamping force of the wire 40.
[0053] Please see Figure 11As shown, in the second preferred embodiment, the difference from the first preferred embodiment lies in the structural appearance of the housing 14, the spring steel sheet 20 and the cover 15, while the structural appearance of the bus 30 is the same as that of the first preferred embodiment. Therefore, in this embodiment, the structural appearance of the bus 30 will not be described again.
[0054] In this embodiment, the housing 14 of the outer casing 10 simultaneously has a longitudinal stop surface 13, an oblique stop surface 12, and an oblique support surface 11. Furthermore, the housing 14 is provided with a wiring hole 146. The test port 142, the mounting opening 143, and the wiring hole 146 of the housing 14 are located on different sides of the housing 14. The opening directions of both the test port 142 and the wiring hole 146 are parallel to the wiring direction D, such that the test port 142 and the wiring hole 146 are located on opposite sides of the accommodating space 141. The test port 142 is connected to the first accommodating region 141a of the accommodating space 141, and the wiring hole 146... The second receiving area 141b is connected to the receiving space 141. In addition, the opening direction of the mounting opening 143 is perpendicular to the insertion direction D, so that the mounting opening 143 is connected to the first and second receiving areas 141a and 141b. Furthermore, the cover 15 is only composed of the engaging body 151, the covering body 152 and a plurality of pressing protrusions 153, so that the cover 15 in the second preferred embodiment does not have the threading channel 154, the recess 156 and the supporting rib 157 as in the first preferred embodiment. Then the spring steel sheet 20 has the bearing part 22 and the wire clamping part 21 as in the first preferred embodiment, and the window 212 of the wire clamping part 21 is rectangular.
[0055] Please see Figure 12 As shown, the engaging body 151 of the cover 15 is inserted into the receiving space 141 of the housing 14 through the mounting opening 143 of the housing 14, so that the engaging body 151 is simultaneously distributed in the first and second receiving areas 141a and 141b of the receiving space 141. The multiple pressing protrusions 153 of the cover 15 directly penetrate into the interior of the first receiving area 141a. Then, the guide surface 153b of each pressing protrusion 153 will first contact the edge of the bus 30, and then the guide surface 153b will guide the pressing protrusion 153 to the pressure surface 32 of the bus 30, thereby ensuring that one pressing protrusion 153 can contact the pressure surface 32 located in the first bus 34, and the other pressing protrusion 153 can contact the pressure surface 32 located in the second bus 35.
[0056] The above description is illustrative only and not restrictive. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the claims, and all such modifications, variations or equivalents will fall within the protection scope of this utility model.
Claims
1. An electrical wire connecting device capable of being inserted by a plurality of electrical wires along a wire insertion direction, characterized by, Include: A shell; A spring steel sheet, located inside the aforementioned housing, has a support portion contacting the aforementioned housing and a clamping portion extending from the support portion. The support portion is inclined relative to the clamping portion, forming a first obtuse angle between the support portion and the clamping portion. The support portion has a first support area and a second support area located between the first support area and the clamping portion. The first support area is inclined relative to the second support area, forming a second obtuse angle between the first support area and the second support area. The clamping portion has multiple connecting frames, each of which forms a window through which the aforementioned wire can pass and a spring piece extending from the edge of the window; and A bus is connected to the aforementioned carrier portion and has a first bus portion overlapping the aforementioned first carrier region, a second bus portion overlapping the aforementioned second carrier region, and a first bend portion located between the aforementioned first bus portion and the second bus portion. The aforementioned first bend portion is used to make the aforementioned first bus portion relatively inclined to the aforementioned second bus portion, so that a third obtuse angle is formed between the aforementioned first bus portion and the second bus portion.
2. The electrical wire connecting device according to claim 1, wherein The interior of the aforementioned outer casing is provided with an inclined support surface and a longitudinal baffle arranged at intervals on the inclined support surface. The inclined support surface is relatively inclined to the longitudinal baffle. The clamping part can contact the inclined support surface, and the bearing part can contact the longitudinal baffle, so that the spring steel sheet can be restricted between the inclined support surface and the longitudinal baffle.
3. The electrical wire connecting device of claim 1, wherein, The aforementioned spring has a connecting end adjacent to the window and a contact end spaced apart from the connecting end, and is deformed by the aforementioned wire moving along the aforementioned insertion direction. When the aforementioned spring is not compressed by the aforementioned wire, the aforementioned contact end is located directly above the aforementioned second busbar. When the aforementioned spring is compressed by the aforementioned wire, the aforementioned spring will deform in a direction away from the aforementioned bearing portion so that the aforementioned contact end is located directly above the aforementioned first busbar.
4. The electrical wire connecting device of claim 1, wherein, The bus also includes a plurality of third bus sections protruding outward from the second bearing area and a second bend between the second bus section and the plurality of third bus sections. The plurality of third bus sections can be located in pairs in one of the windows of the clamping section. The second bend is used to allow the second bus section and the third bus section to be inclined to each other, so that a fourth obtuse angle is formed between the second bus section and the third bus section.
5. The electrical wire connecting device of claim 1, wherein, The aforementioned housing includes: A housing has an internal accommodating space for accommodating the aforementioned spring steel sheet and bus, and a mounting opening communicating with the accommodating space on one side. The accommodating space can be divided into a first accommodating area for accommodating the aforementioned bearing portion and a second accommodating area arranged on one side of the first accommodating area through the aforementioned clamping portion. The first accommodating area is connected to the second accommodating area through the aforementioned window. as well as A cover has multiple pressing protrusions, which cover the mounting opening, allowing the multiple pressing protrusions to be inserted into the interior of the first receiving area to contact the bus, and the multiple pressing protrusions and the housing can be clamped together to the carrier and the bus.
6. The electrical wire connecting device of claim 5, wherein, The opening direction of the aforementioned mounting opening is parallel to the aforementioned insertion direction so that the aforementioned mounting opening is connected to the aforementioned second receiving area, such that when the aforementioned cover covers the aforementioned mounting opening, the plurality of the aforementioned pressing protrusions will pass through the window of the aforementioned clamping portion and be inserted into the interior of the aforementioned first receiving area.
7. The electrical wire connecting device of claim 6, wherein, Each of the aforementioned windows is provided with a wire-passing area for the wire to pass through and two through-block areas with a height smaller than the wire-passing area. The two through-block areas are respectively located on opposite sides of the wire-passing area and are inserted one-to-one by one of the aforementioned pressing protrusions. Each of the aforementioned spring pieces extends from the top edge of the wire-passing area of one of the aforementioned windows to the interior of the aforementioned first receiving area.
8. The electrical wire connecting device of claim 7, wherein, When two of the above-mentioned through-block areas of the same window are respectively penetrated by one of the above-mentioned pressing protrusions, the two pressing protrusions that are through the same window can be arranged at intervals on one side of the above-mentioned spring piece, so that a protrusion spacing is formed between the two above-mentioned pressing protrusions, and the width of the above-mentioned spring piece is set to a spring piece width whose length is greater than the above-mentioned protrusion spacing. Then, when viewed horizontally along the above-mentioned insertion line direction, the above-mentioned spring piece will cover a part of the above-mentioned pressing protrusions.
9. The electrical wire connecting device of claim 5, wherein, The aforementioned pressing protrusion has a guide surface and a pressure surface adjacent to the guide surface on one side. During the process of the cover covering the installation opening, the guide surface will first contact the second junction, and then the pressing protrusion will be guided by the guide surface to the top of the second junction, so that the pressure surface can contact the second junction.
10. The electrical wire connecting device of claim 5, wherein, The aforementioned cover has a locking body that engages inside the aforementioned accommodating space and a covering body located outside the aforementioned accommodating space. Multiple threading channels are formed through the covering body toward the locking body, such that the locking body forms a channel opening that communicates with the threading channels. Multiple pressing protrusions are provided on the locking body, and every two pressing protrusions are located on opposite sides of a single channel opening.
11. The electrical wire connecting device of claim 10, wherein, The cap has multiple recesses around the communicating opening, such that the engaging body forms a support rib between every two of the recesses, and each of the support ribs is adjacent to at least one of the pressing protrusions.