A current expansion device

Abstract

The utility model relates to a current capacity expansion device relates to the technical field of current detection, it includes base, first seat body, electric core, second seat body and interface, first seat body and second seat body set up on the base, first seat body includes mounting seat and rotating disc, the support rod is fixedly arranged on the base, the side wall of support rod rotatably provided with rotating shaft, mounting seat is fixed on the base, the surface of mounting seat is provided with rotating hole, rotating disc is located in rotating hole, and rotating shaft is connected with rotating disc each other, the electric core sets up on the end wall of rotating disc, and the end wall of rotating disc is opened and has the connecting groove that supplies electric core and inserts, and the abutting slot that supplies rotating disc and inserts is opened to the electric core, the inner wall of rotating hole is opened and has the installation slot that supplies electric core and passes, and the limit block is movably arranged in the installation slot, and the locking piece is set up on the support rod. The present application has the effect that the electric core is replaced conveniently, reduces the operation difficulty, satisfies different use demand.

Description

Technical Field

[0001] This utility model relates to the technical field of current detection, and in particular to a current expansion device. Background Technology

[0002] Currently, when manufacturing current sensors, it is necessary to test the detection range of the current sensor, which requires providing a certain range of current supply. This is especially true for large current sensors, some of which may have a detection range of tens of thousands or hundreds of thousands of amperes.

[0003] The related technology includes a current capacity expansion device comprising a base, a first base body, a battery cell, and a second base body. The first base body is fixed on the base, and several battery cells are symmetrically arranged on the first base body, passing through the first base body. The second base body is slidably mounted on the base, and has an interface matching the number of battery cells. Both the battery cells and the interfaces have wiring terminals. In actual use, the second base body is first moved away from the first base body, and the current sensor is placed on the battery cell. Then, the second base body is moved closer to the first base body to connect the battery cell and the interface. Finally, the wiring terminals on the battery cell and the interface are connected with wires and energized, thereby increasing the current capacity of the current source.

[0004] In the process of developing this application, it was found that the technology has at least the following problems: the battery cell is fixed on the first housing, and it is inconvenient to replace the battery cell to change the current rating, which is not convenient for different usage needs, and therefore needs to be improved. Utility Model Content

[0005] To facilitate battery cell replacement, reduce operational difficulties, and meet different usage needs, this application provides a current expansion device.

[0006] The current expansion device provided in this application adopts the following technical solution: A current capacity expansion device includes a base, a first base body, battery cells, a second base body, and an interface. The first and second base bodies are disposed on the base. A plurality of battery cells are disposed on the first base body, and the interface is disposed on the second base body. The first base body includes a mounting base and a rotating disk. A support rod is fixedly disposed on the base, and a rotating shaft is rotatably disposed on the side wall of the support rod. The mounting base is fixed to the base, and a rotating hole is formed through its surface. The rotating disk is located within the rotating hole, and the rotating shaft is connected to the rotating disk. The battery cells are disposed on the end wall of the rotating disk, and a connecting groove for inserting the battery cells is formed on the end wall of the rotating disk. An abutment groove for inserting the rotating disk is formed on the battery cells, and the inner side wall of the abutment groove abuts against the rotating disk. The inner side wall of the connecting groove abuts against the battery cells. An installation groove for the battery cells to pass through is formed on the inner wall of the rotating hole, and a limit block is movably disposed within the installation groove. A locking element is disposed on the support rod to fix the rotating shaft.

[0007] Preferably, the limiting block and the mounting groove are mutually compatible, the limiting block is provided with a magnetic block, the end wall of the mounting base is provided with an adsorption groove for inserting the magnetic block, the adsorption groove is provided with an adsorption block, and the adsorption block and the magnetic block are magnetically attracted to each other.

[0008] Preferably, the locking element includes a locking rod and a tension spring. The locking rod is rotatably mounted on the top of the support rod. The surface of the rotating shaft has a locking groove for the end wall of the locking rod to be inserted. One end of the tension spring is connected to the locking rod, and the other end of the tension spring is connected to the support rod. The tension spring drives the locking rod to be inserted into the locking groove.

[0009] Preferably, the base is provided with a sliding groove, and a set of guide grooves are symmetrically provided through the inner wall of the sliding groove. A guide rod is fixedly provided in the guide groove, and a guide block is slidably provided on the guide rod. The second seat is provided on the guide block.

[0010] Preferably, a handle is fixedly provided on the end wall of the guide block, and a locking sleeve is threadedly connected to the handle, with the end wall of the locking sleeve abutting against the side wall of the base.

[0011] Preferably, the second seat and the guide block are detachably connected by bolts.

[0012] In summary, this application includes at least one of the following beneficial technical effects: By setting up a base, a first seat, a mounting base, a rotating disk, a rotating hole, a second seat, a battery cell, an interface, a support rod, a rotating shaft, a connecting groove, an abutment groove, a mounting groove, and a limiting block, when installing the battery cell on the rotating disk, first rotate the rotating shaft to drive the rotating disk to rotate, aligning the connecting groove and the mounting groove on the rotating disk with each other. At this time, the battery cell is first passed through the mounting groove, and then the abutment groove on the battery cell is aligned with the connecting groove. The battery cell is then inserted into the connecting groove, and the battery cell is snapped into the end wall of the rotating disk. Finally, the rotating disk is rotated, and the inner wall of the rotating hole seals the connecting groove, thus securing the battery cell firmly on the rotating disk. When the battery cell needs to be replaced, simply rotate the rotating disk to align the connecting groove and the mounting groove with each other, and the battery cell can be removed and replaced through the mounting groove, improving the applicability of the device. By setting a locking rod and a tension spring, when the battery cell needs to be replaced, the locking rod is turned to disengage from the locking groove. At this time, the rotating disk can be driven to rotate in the rotating hole. After the replacement is completed, the tension spring is used to drive the locking rod to be inserted into the locking groove. The locking rod abuts against the inner wall of the locking groove, quickly positioning and locking the rotating shaft, preventing the rotating disk from rotating on its own during use, and improving the stability of the device. By setting up sliding grooves, guide grooves, guide rods, guide blocks, handles, and locking sleeves, when using the device, the handle is driven by holding the locking sleeve, which can drive the guide block to slide on the guide rod, thereby controlling the second seat and the first seat to move closer or further apart. After adjusting the position of the second seat, the locking sleeve is rotated to abut against the side wall of the base, which can quickly fix the position of the guide block, improving the stability after the second seat and the first seat are connected. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a current expansion device provided in an embodiment of this application.

[0014] Figure 2 yes Figure 1 Enlarged view of part A Figure 3 This is a schematic diagram illustrating the battery cell in the embodiments of this application.

[0015] Explanation of reference numerals in the attached drawings: 1. Base; 11. First base body; 111. Mounting base; 112. Rotating disk; 113. Rotating hole; 12. Second base body; 21. Battery cell; 22. Interface; 3. Support rod; 31. Rotating shaft; 4. Connecting groove; 41. Abutment groove; 5. Mounting groove; 51. Limiting block; 511. Magnetic block; 6. Locking element; 61. Locking rod; 611. Locking groove; 62. Tensioning spring; 7. Adsorption groove; 71. Adsorption block; 8. Sliding groove; 81. Guide groove; 82. Guide rod; 83. Guide block; 9. Handle; 91. Locking sleeve. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0017] This application discloses a current expansion device. (Refer to...) Figure 1 It includes a base 1, a first base body 11, battery cells 21, a second base body 12, and an interface 22. The base 1 is horizontally positioned. Both the first base body 11 and the second base body 12 are mounted on the base 1. Several battery cells 21 are mounted on the first base body 11. By changing the number and specifications of the battery cells 21, the current rating of the entire expansion device can be changed. The interface 22 is located on the second base body 12, and the number of interfaces 22 corresponds to the number of battery cells 21. The interfaces 22 are used for interconnection with the battery cells 21.

[0018] Reference Figure 1 and Figure 2 The first base 11 includes a mounting base 111 and a rotating disk 112. The mounting base 111 is fixed on the base 1, and a rotating hole 113 is provided through the surface of the mounting base 111. The rotating disk 112 is located inside the rotating hole 113, and the end wall of the rotating disk 112 is in contact with the inner wall of the rotating hole 113. A support rod 3 is fixedly provided on the base 1, and a rotating shaft 31 is rotatably provided on the side wall of the support rod 3. The length direction of the rotating shaft 31 is horizontal, and the rotating shaft 31 is connected and fixed to the rotating disk 112. The rotating disk 112 is rotatably disposed in the rotating hole 113 through the rotating shaft 31, and the battery cell 21 is disposed on the end wall of the rotating disk 112.

[0019] Reference Figures 1 to 3 The end wall of the rotating disk 112 is provided with a connecting groove 4 for inserting the power supply core 21, the surface of the power supply core 21 is provided with an abutment groove 41 for inserting the rotating disk 112, and the inner wall of the rotating hole 113 is provided with an installation groove 5 for the power supply core 21 to pass through. When installing the battery cell 21 on the rotating disk 112, first rotate the rotating shaft 31 to drive the rotating disk 112 to rotate, aligning the connecting groove 4 and the mounting groove 5 on the rotating disk 112. Then, pass the battery cell 21 through the mounting groove 5, align the abutment groove 41 on the battery cell 21 with the connecting groove 4, and insert the battery cell 21 into the connecting groove 4. At this time, the inner wall of the abutment groove 41 abuts against the rotating disk 112, and the inner wall of the connecting groove 4 abuts against the battery cell 21. The battery cell 21 is snapped into the end wall of the rotating disk 112. Finally, rotate the rotating disk 112, and use the inner wall of the rotating hole 113 to seal the connecting groove 4, thus securing the battery cell 21 firmly on the rotating disk 112. This operation can be used to install the battery cell 21 in different connecting grooves 4 on the rotating disk 112 in sequence. When it is necessary to replace the battery cell 21, simply rotate the rotating disk 112 to align the connecting groove 4 and the mounting groove 5, and the battery cell 21 can be removed and replaced through the mounting groove 5.

[0020] Reference Figure 1 and Figure 2A limiting block 51 is movably installed within the mounting groove 5, and the limiting block 51 is compatible with the mounting groove 5. Magnetic blocks 511, which are magnets, are fixedly installed at both ends of the limiting block 51. An adsorption groove 7 for inserting the magnetic blocks 511 is opened on the end wall of the mounting base 111, and the inner wall of the adsorption groove 7 is in contact with the outer wall of the magnetic blocks 511. An adsorption block 71, which is an iron block, is installed within the adsorption groove 7, and the adsorption block 71 and the magnetic blocks 511 are magnetically attracted to each other. After the battery cell 21 is installed, the limiting block 51 is inserted into the mounting groove 5, and the magnetic blocks 511 are inserted into the adsorption groove 7. The magnetic attraction between the adsorption block 71 and the magnetic blocks 511 fixes the limiting block 51 within the mounting groove 5. The limiting block 51 can fill the mounting groove 5, preventing the installed battery cell 21 from detaching from the connecting groove 4.

[0021] Reference Figure 1 A locking element 6 is provided on the support rod 3. The locking element 6 includes a locking rod 61 and a tension spring 62. The locking rod 61 is rotatably mounted on the top of the support rod 3 via a rotating shaft. A locking groove 611 is formed on the surface of the rotating shaft 31 for the end wall of the locking rod 61 to be inserted. One end of the tension spring 62 is connected to the locking rod 61, and the other end of the tension spring 62 is connected to the support rod 3. When the battery cell 21 needs to be replaced, the locking rod 61 is rotated to disengage it from the locking groove 611. At this time, the rotating disk 112 can be driven to rotate in the rotating hole 113. After the replacement is completed, the tension spring 62 drives the locking rod 61 to be inserted into the locking groove 611. The locking rod 61 abuts against the inner wall of the locking groove 611, quickly positioning and locking the rotating shaft 31, preventing the rotating disk 112 from rotating on its own during use, and improving the stability of the device.

[0022] Reference Figure 1 The base 1 has a sliding groove 8, the length of which is set along the length of the base 1. A set of guide grooves 81 are symmetrically opened through the inner wall of the sliding groove 8 along its length. A guide rod 82 is welded and fixedly installed in the guide groove 81 along its length. A guide block 83 is slidably installed on the guide rod 82. The second base 12 is detachably connected to the guide block 83 by bolts. A handle 9 is fixedly provided on the end wall of the guide block 83. The length of the handle 9 is set in the horizontal direction. A locking sleeve 91 is threadedly connected to the handle 9. In use, by holding the locking sleeve 91 and driving the handle 9, the guide block 83 can be moved on the guide rod 82, thereby controlling the second seat 12 and the first seat 11 to move closer or further apart. After adjusting the position of the second seat 12, the locking sleeve 91 is rotated to abut against the side wall of the base 1, which can quickly fix the position of the guide block 83 and improve the stability after the second seat 12 and the first seat 11 are connected.

[0023] The implementation principle of the current expansion device in this application embodiment is as follows: When it is necessary to replace the battery cell 21 on the rotating disk 112, the limiting block 51 is moved to disengage the magnetic block 511 from the adsorption groove 7 and the limiting block 51 from the mounting groove 5. Then, the locking rod 61 is rotated to disengage the locking rod 61 from the locking groove 611. At this time, the rotating shaft 31 can be driven to rotate, and the rotating shaft 31 drives the rotating disk 112 to rotate. When the connecting groove 4 on the rotating disk 112 is aligned with the mounting groove 5, the battery cell 21 can be disengaged from the connecting groove 4, and a different battery cell 21 can be replaced through the mounting groove 5. When the battery cell 21 is inserted into the connecting groove 4, the inner wall of the abutment groove 41 is aligned with the connecting groove 4, and the inner wall of the connecting groove 4 is also aligned with the battery cell 21. The battery cell 21 is then engaged at the end wall of the rotating disk 112. Finally, the rotating disk 112 is rotated, and the locking rod 61 is inserted into the locking groove 611. The inner wall of the rotating hole 113 is used to seal the connecting groove 4, and the rotating disk 112 is quickly reset and fixed. This allows for the rapid replacement of the battery cell 21. The operation is convenient and quick, enabling the device to meet different usage environments and improving its applicability.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A current expansion device, comprising a base (1), a first base body (11), a battery cell (21), a second base body (12), and an interface (22), wherein the first base body (11) and the second base body (12) are disposed on the base (1), a plurality of battery cells (21) are disposed on the first base body (11), and the interface (22) is disposed on the second base body (12); characterized in that: The first base (11) includes a mounting base (111) and a rotating disk (112). A support rod (3) is fixedly mounted on the base (1). A rotating shaft (31) is rotatably mounted on the side wall of the support rod (3). The mounting base (111) is fixed on the base (1). A rotating hole (113) is provided through the surface of the mounting base (111). The rotating disk (112) is located inside the rotating hole (113). The rotating shaft (31) is connected to the rotating disk (112). The battery cell (21) is mounted on the end wall of the rotating disk (112). The end wall of the rotating hole (113) is provided with a connecting groove (4) for inserting the power supply core (21). The power supply core (21) is provided with an abutment groove (41) for inserting the rotating disk (112). The inner side wall of the abutment groove (41) abuts against the rotating disk (112), and the inner side wall of the connecting groove (4) abuts against the power supply core (21). The inner wall of the rotating hole (113) is provided with an installation groove (5) through which the power supply core (21) passes. A limit block (51) is movably provided in the installation groove (5). A locking member (6) is provided on the support rod (3). The locking member (6) is used to fix the rotating shaft (31).

2. The current expansion device according to claim 1, characterized in that: The limiting block (51) and the mounting groove (5) are mutually adapted. A magnetic block (511) is provided on the limiting block (51). An adsorption groove (7) for inserting the magnetic block (511) is opened on the end wall of the mounting base (111). An adsorption block (71) is provided in the adsorption groove (7). The adsorption block (71) and the magnetic block (511) are magnetically attracted to each other.

3. The current expansion device according to claim 1, characterized in that: The locking component (6) includes a locking rod (61) and a tension spring (62). The locking rod (61) is rotatably mounted on the top of the support rod (3). The surface of the rotating shaft (31) is provided with a locking groove (611) for the end wall of the locking rod (61) to be inserted. One end of the tension spring (62) is connected to the locking rod (61), and the other end of the tension spring (62) is connected to the support rod (3). The tension spring (62) drives the locking rod (61) to be inserted into the locking groove (611).

4. The current expansion device according to claim 1, characterized in that: The base (1) is provided with a sliding groove (8), and a set of guide grooves (81) are symmetrically provided through the inner wall of the sliding groove (8). A guide rod (82) is fixedly provided in the guide groove (81), and a guide block (83) is slidably provided on the guide rod (82). The second seat (12) is provided on the guide block (83).

5. The current expansion device according to claim 4, characterized in that: A handle (9) is fixedly provided on the end wall of the guide block (83), and a locking sleeve (91) is threadedly connected to the handle (9). The end wall of the locking sleeve (91) abuts against the side wall of the base (1).

6. The current expansion device according to claim 4, characterized in that: The second seat (12) and the guide block (83) are detachably connected by bolts.

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