Integrated universal battery box assembly for servo driver and servo driver

Abstract

The integrated universal battery box assembly comprises a base body and a battery box cover, a battery bin used for containing a battery and a circuit board are arranged in the base body, the battery bin comprises a containing cavity used for containing at least one alkaline battery, and the circuit board is arranged in the containing cavity. The circuit board is provided with an alkaline battery output end and a lithium battery output end, the alkaline battery can be electrically connected with the alkaline battery output end through an alkaline battery pole piece, and the lithium battery is electrically connected with the lithium battery output end. A battery box output end is arranged on an outer side plate of the base body, the battery box output end is electrically connected with the circuit board, and when the universal battery box assembly is installed in the servo driver, the outer side plate of the universal battery box assembly is flush with a driver main panel of the servo driver. The structure space of the servo driver is remarkably saved, an operator can conveniently replace an external power supply, and meanwhile the servo driver has wide universality.

Description

Technical Field

[0001] This invention relates to the field of servo drive technology, and more particularly to an integrated universal battery box assembly for servo drives and a servo drive. Background Technology

[0002] The CNC servo system is a crucial component of CNC machine tools. It serves as the electrical drive link between the CNC system and the machine tool body, enabling feed servo control and spindle servo control. A CNC servo system primarily consists of a servo driver, a drive controller, and a position detection feedback device. The servo driver is typically powered by AC power. However, when the AC power supply is interrupted due to unforeseen circumstances, an external power source, usually a low-voltage DC power supply, is required to continue powering the servo driver. This ensures the servo driver's positional accuracy control of the machine tool during AC power outages and maintains the memory's retention function.

[0003] To address this issue, the current common solution is to use a single lithium battery or multiple alkaline batteries to provide external power. There are two main implementation methods: one is to solder the lithium or alkaline battery assembly into the servo drive after wiring; the other is to add an external battery box to the top or side of the servo drive. However, both methods have significant drawbacks: First, due to the different performance parameters of lithium and alkaline batteries, and limitations imposed by usage conditions and environments, separate battery boxes are usually required for lithium and alkaline batteries, lacking versatility. Second, as CNC systems develop towards high density and miniaturization, the control cabinets used to install servo drives are becoming smaller, especially when multiple servo drives are installed in parallel. The internal space of the control cabinet is very limited, and equipping each servo drive with separate external battery boxes for lithium and alkaline batteries would severely encroach on the limited space, leading to layout difficulties. Soldering the battery assembly into the servo drive makes it difficult for operators and / or maintenance personnel to access and operate the battery assembly, reducing system maintainability and making battery replacement very inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a universal battery box assembly for providing backup external DC power to a servo drive. This universal battery box assembly not only saves structural space for the servo drive, but also allows operators to easily replace the external power supply for the servo drive, and has wide versatility, thus solving the aforementioned problems in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An integrated universal battery box assembly for a servo driver according to the present invention includes a base and a battery box cover covering the base. The base has a battery compartment for accommodating batteries and a circuit board. The battery compartment includes a receiving cavity for accommodating at least one alkaline battery, and a portion of the receiving cavity can serve as a receiving portion for accommodating a lithium battery. The width of the receiving portion is approximately the same as the width of the receiving cavity. The circuit board is respectively provided with an alkaline battery output terminal and a lithium battery output terminal. The alkaline battery is electrically connected to the alkaline battery output terminal through an alkaline battery electrode, and the lithium battery is electrically connected to the lithium battery output terminal. The outer side plate of the base is provided with a battery box output terminal, which is electrically connected to the circuit board. When the universal battery box assembly is installed in the servo driver, the outer side plate of the universal battery box assembly is flush with the main driver panel of the servo driver, so that the universal battery box assembly can be completely accommodated in the servo driver.

[0006] The battery compartment of the universal battery box assembly of the present invention can accommodate both alkaline batteries and lithium batteries. Regardless of the type of battery, these batteries can be electrically connected to the output terminal through the circuit board to form a complete output circuit. This enables the servo driver to continue to be powered by an external power source when the AC power is interrupted, thus realizing the universality of the external power source for the servo driver.

[0007] Furthermore, the receiving portion for accommodating the lithium battery and the receiving cavity for accommodating at least one alkaline battery are oriented perpendicularly to each other or side by side.

[0008] Furthermore, multiple alkaline batteries are arranged side by side and connected in series, and abut against the alkaline battery electrodes.

[0009] Preferably, the battery compartment can accommodate one lithium battery or three alkaline batteries, wherein the width of the cavity for accommodating the alkaline batteries is approximately the same as the width of the cavity for accommodating the lithium batteries, thereby making optimal use of the internal space of the universal battery box assembly and minimizing the size of the universal battery box assembly.

[0010] Furthermore, the housing includes a lithium battery holder on which the lithium battery is mounted. When the lithium battery is inserted into the universal battery box assembly, the lithium battery holder is electrically connected to the output terminal of the lithium battery via a plug. This allows the lithium battery, especially a single lithium battery, to be more stably housed in the battery compartment and to be more reliably electrically connected to the lithium battery output terminal.

[0011] Furthermore, both the substrate and the battery box cover are injection molded using engineering plastic molds.

[0012] Furthermore, the circuit board is disposed on the side close to the outer side plate of the substrate.

[0013] Furthermore, the battery case cover is pivotally connected to the base via a pivot shaft. In this case, the battery case cover can cover or open the base by pivoting. Other possible connection methods between the battery case cover and the base that can achieve the covering and opening functions also fall within the scope of protection of this invention, such as snap-fit ​​connection or pull-out connection.

[0014] Furthermore, a handle is provided on the outer side plate of the base. The outer side plate of the universal battery box assembly refers to the side plate facing the operator and directly accessible to the operator. The driver main panel refers to the panel of the servo driver that has power terminals and signal ports. On one hand, the universal battery box assembly can be fully inserted into the driver housing of the servo driver during operation, thus eliminating the need for an external battery box and saving overall space occupied by the servo driver. On the other hand, when it is necessary to replace the external battery, the operator can easily access the universal battery box assembly and pull it out of the driver housing of the servo driver.

[0015] The present invention also provides a servo driver, including a driver housing. The side of the driver housing facing the operator is a driver main panel. The driver main panel is provided with a grounding port for grounding protection, multiple signal ports for data and signal transmission, and a main power terminal cover for covering the AC main power terminals. The driver housing has a battery compartment receiving portion, which houses the integrated universal battery compartment assembly. In this configuration, the battery compartment receiving portion can completely accommodate the universal battery compartment assembly, and when the universal battery compartment assembly is housed in the driver housing, the driver main panel of the driver housing is flush with the outer side panel of the universal battery compartment assembly, thereby saving space and facilitating the removal of the universal battery compartment assembly for battery replacement.

[0016] Furthermore, the battery compartment receiving portion is provided with a guide rail adapted to the base body. The universal battery compartment assembly is slidably connected to the driver housing via the guide rail. The battery compartment receiving portion is provided with a buckle, and the base body is provided with a slot. The buckle engages with the slot to hold the universal battery compartment assembly on the driver housing. This allows the universal battery compartment assembly to be fixed in the driver housing during operation, and also enables easy removal of the universal battery compartment assembly from the driver housing when the battery needs to be replaced.

[0017] Preferably, the driver housing, the base, and the battery box cover are all injection molded using engineering plastic molds. Of course, using other possible materials to manufacture the driver housing, the base, and the battery box cover also falls within the protection scope of this invention.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are as follows: The present invention relates to an integrated universal battery box assembly and servo drive for servo drives. Through the battery compartment design, a single battery box is compatible with both lithium and alkaline batteries, achieving universality of external power supply for the servo drive. Operators can flexibly change battery types as needed. By designing the battery box assembly to be completely embedded within the drive housing, with the outer side panel flush with the drive's main panel, an external battery box is completely eliminated, significantly saving overall installation space for the servo drive and perfectly meeting the miniaturization requirements of high-density control cabinets. Simultaneously, by providing handles on the outer panel of the battery box and guide rails and clips inside the drive housing, quick, tool-free assembly and disassembly of the battery box are achieved, greatly improving the maintainability and ease of operation of the equipment. Furthermore, this integrated design, through a shared circuit board and optimized electrical layout, further enhances the reliability and stability of the system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the integrated universal battery box assembly for a servo driver in Embodiment 1 of the present invention when it is removed from the servo driver. Figure 2 This is a schematic diagram of the integrated universal battery box assembly for a servo driver according to Embodiment 1 of the present invention when an alkaline battery is installed. Figure 3 This is a schematic diagram of the integrated universal battery box assembly for a servo driver according to Embodiment 1 of the present invention when a lithium battery is installed. Figure 4 This is a schematic diagram of the overall structure of the servo driver in Embodiment 2 of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Servo driver; 2. Driver housing; 3. Grounding port; 4. Signal port; 5. Main power terminal cover; 6. Reinforcing rib; 7. Battery compartment housing; 8. Snap-fit; 9. Driver main panel; 10. Universal battery compartment assembly; 11. Battery compartment cover; 12. Base; 13. Pivot shaft; 14. Handle; 15. Battery compartment; 16. Battery compartment output terminal; 17. Circuit board; 18. Alkaline battery; 19. Alkaline battery electrode; 20. Alkaline battery output terminal; 21. Lithium battery; 22. Lithium battery bracket; 23. Lithium battery output terminal; 24. Receiving cavity. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the terms "length," "width," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Example 1 like Figures 1 to 3As shown, the integrated universal battery box assembly for a servo driver in this embodiment 1 includes a base 12 and a battery box cover 11 covering the base 12. The base 12 is provided with a battery compartment 15 for accommodating batteries and a circuit board 17. The battery compartment 15 includes a receiving cavity 24 for accommodating at least one alkaline battery 18, and a part of the receiving cavity 24 can serve as a receiving part for accommodating a lithium battery 21. The width of the receiving part is approximately the same as the width of the receiving cavity 24. An alkaline battery output terminal 20 and a lithium battery output terminal 23 are respectively provided on the circuit board 17. The alkaline battery 18 can be electrically connected to the alkaline battery output terminal 20 through alkaline battery electrode 19, and the lithium battery 21 can be electrically connected to the lithium battery output terminal 23. A battery box output terminal 16 is provided on the outer side plate of the base 12. The battery box output terminal 16 is electrically connected to the circuit board 17. When the universal battery box assembly is installed in the servo driver, the outer side plate of the universal battery box assembly is flush with the driver main panel 9 of the servo driver so that the universal battery box assembly can be completely accommodated in the servo driver.

[0027] The accommodating portion for accommodating lithium batteries and the accommodating cavity 24 for accommodating at least one alkaline battery are oriented perpendicularly to each other or side by side.

[0028] Furthermore, multiple alkaline batteries 18 are arranged side by side and connected in series, and abut against the alkaline battery electrode 19.

[0029] Preferably, the receiving part houses a lithium battery holder 22, the lithium battery 21 is mounted on the lithium battery holder 22, and the lithium battery holder 22 is electrically connected to the lithium battery output terminal 23 via a plug.

[0030] In this embodiment 1, both the substrate 12 and the battery box cover 11 are injection molded using engineering plastic molds. The circuit board 17 is located on the side near the outer side plate of the substrate 12, and a handle 14 is provided on the outer side plate of the substrate 12.

[0031] Specifically, the battery cover 11 is pivotally connected to the base 12 via a pivot shaft 13.

[0032] like Figure 1 As shown, the driver housing 2 is provided with a battery compartment receiving portion 7 for accommodating a universal battery compartment assembly 10. The battery compartment receiving portion 7 is provided with a guide rail (not shown in the figure) adapted to the base 12 of the universal battery compartment assembly 10. The universal battery compartment assembly 10 can slide in and out of the driver housing 2 by means of the guide rail. At the same time, the battery compartment receiving portion 7 is also provided with a buckle 8 for fixing the universal battery compartment assembly 10. When the universal battery compartment assembly 10 is fully inserted into the driver housing 2, the buckle 8 forms a locking connection with the slot on the base 12 of the universal battery compartment assembly 10, thereby holding the universal battery compartment assembly 10 in the driver housing 2.

[0033] In addition, several handles 14 and a battery box output end 16 are provided on the outer side plate of the universal battery box assembly 10. When it is necessary to remove the universal battery box assembly 10 from the servo driver 1, pull the handles 14 upward to disengage the latch 8 from the base 12. Then, pull the handles 14 outward to easily pull the universal battery box assembly 10 out of the servo driver 1. Of course, other installation methods can also be used to easily install the universal battery box assembly 10 into the driver housing 2, such as hooks, convex and concave mating structures on the guide rail, etc.

[0034] like Figure 2 As shown, an alkaline battery is installed in a universal battery box assembly 10. The universal battery box assembly 10 has a base 12 and a battery box cover 11 for covering the base. Preferably, both the base 12 and the battery box cover 11 are injection molded from engineering plastics. The battery box cover 11 is pivotally connected to the base 12 via a pivot shaft 13.

[0035] When the battery case cover 11 is opened, the battery compartment 15 located inside the base 12 can be seen. The battery compartment 15 includes a receiving cavity 24, in which at least one alkaline battery 18 is arranged. Figure 2 As shown, there are three alkaline batteries 18, and the three alkaline batteries 18 are arranged side by side.

[0036] The substrate 12 also includes alkaline battery electrodes 19 and a circuit board 17 for alkaline batteries 18. An alkaline battery output terminal 20, electrically connected to the alkaline battery electrodes 19, is arranged on the circuit board 17. Multiple alkaline batteries 18 are connected in series and abut against the alkaline battery electrodes 19, thereby being electrically connected to the alkaline battery output terminal 20. Furthermore, a battery box output terminal 16, located on the outer side plate of the universal battery box assembly 10, is also electrically connected to the circuit board 17, and thus electrically connected to the alkaline batteries 18.

[0037] like Figure 3 As shown, a lithium battery is installed in the universal battery box assembly 10. Inside the base 12, a portion of the receiving cavity 24 serves as a receiving section for accommodating the lithium battery 21, which is located at the opposite end where the alkaline battery electrode 19 is arranged. Preferably, the arrangement direction of the lithium battery 21 is perpendicular to the arrangement direction of the alkaline battery 18, or arranged side by side with respect to the alkaline battery 18.

[0038] Furthermore, the lithium battery 21 is fixed in the battery compartment 15 by a lithium battery bracket 22. A plug is provided at one end of the lithium battery bracket 22, allowing it to be electrically connected to the lithium battery output terminal 23 on the circuit board 17. This enables the lithium battery 21 to be electrically connected to both the lithium battery output terminal 23 and the battery box output terminal 16. The circuit board 17 is shared for both alkaline and lithium batteries. To facilitate electrical connection, the circuit board 17 is positioned near the outer side panel of the universal battery box assembly after it has been installed into the driver housing.

[0039] Example 2 like Figure 4 As shown, the servo driver of this embodiment 2 includes a driver housing 2. The side of the driver housing 2 facing the operator is the driver main panel 9. The driver main panel 9 is provided with a grounding port 3 for grounding protection, a plurality of signal ports 4 for data and signal transmission, and a main power terminal cover 5 for covering the AC main power terminal. The driver housing 2 is provided with a battery box receiving part 7. The battery box receiving part 7 contains an integrated universal battery box assembly 10 as described in any one of claims 1-8.

[0040] The battery compartment 7 is provided with a guide rail adapted to the base 12. The universal battery compartment assembly 10 is slidably connected to the driver housing 2 through the guide rail. The battery compartment 7 is provided with a buckle 8, and the base 12 is provided with a slot. The buckle 8 and the slot are engaged to hold the universal battery compartment assembly 10 on the driver housing 2.

[0041] like Figure 4 As shown, the universal battery box assembly 10 is housed in the driver housing 2 of the servo driver 1, and the driver housing 2 is injection molded from engineering plastic. On the driver main panel 9 facing the operator of the driver housing 2, there is a grounding port 3 for grounding protection and multiple signal ports 4 for data and signal transmission. In addition, the driver main panel 9 is also provided with a main power terminal cover 5 for covering the AC main power terminal.

[0042] At this point, when the universal battery box assembly 10 is fully inserted into the driver housing 2, the outer side panel of the universal battery box assembly 10 is flush with the driver main panel 9 of the driver housing 2. Furthermore, the driver housing 2 is also equipped with other optional components, such as reinforcing ribs 6.

[0043] The integrated universal battery box assembly and servo drive of the present invention can be used with both alkaline and lithium batteries, realizing the universality of the external power supply for the servo drive. Operators can flexibly replace different types of batteries according to parameter requirements and operating environment. In addition, when in operation, the universal battery box assembly can be completely inserted into the drive housing of the servo drive, thereby saving additional installation space and facilitating the placement of the servo drive in the control cabinet. Furthermore, when it is necessary to replace the battery, the universal battery box assembly can be easily pulled out from the drive housing of the servo drive, making it easy for operators to disassemble the battery box for battery replacement, greatly improving the maintainability and ease of operation of the equipment.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An integrated universal battery box assembly for a servo drive, characterized in that, The device includes a substrate (12) and a battery cover (11) covering the substrate (12). The substrate (12) contains a battery compartment (15) for accommodating batteries and a circuit board (17). The battery compartment (15) includes a receiving cavity (24) for accommodating at least one alkaline battery (18), and a portion of the receiving cavity (24) can serve as a receiving portion for accommodating a lithium battery (21). The width of the receiving portion is approximately the same as the width of the receiving cavity (24). The circuit board (17) is respectively provided with an alkaline battery output terminal (20) and a lithium battery output terminal (23). The alkaline battery (18) can be electrically connected to the alkaline battery output terminal (20) through the alkaline battery electrode (19), the lithium battery (21) is electrically connected to the lithium battery output terminal (23), the outer side plate of the substrate (12) is provided with a battery box output terminal (16), the battery box output terminal (16) is electrically connected to the circuit board (17), when the universal battery box assembly is installed in the servo driver, the outer side plate of the universal battery box assembly is flush with the driver main panel (9) of the servo driver so that the universal battery box assembly can be completely accommodated in the servo driver.

2. The integrated universal battery box assembly for a servo drive of claim 1, wherein, The housing portion for accommodating a lithium battery and the housing cavity (24) for accommodating at least one alkaline battery are oriented perpendicularly to each other or side by side.

3. The integrated universal battery box assembly for a servo drive of claim 1, wherein, Multiple alkaline batteries (18) are arranged side by side and connected in series, and abut against the alkaline battery electrode (19).

4. The integrated universal battery box assembly for a servo driver according to claim 1, characterized in that, The receiving part contains a lithium battery bracket (22), the lithium battery (21) is mounted on the lithium battery bracket (22), and the lithium battery bracket (22) is electrically connected to the lithium battery output terminal (23) via a plug.

5. The integrated universal battery box assembly for a servo driver according to claim 1, characterized in that, Both the substrate (12) and the battery box cover (11) are injection molded using engineering plastic molds.

6. The integrated universal battery box assembly for a servo driver according to claim 1, characterized in that, The circuit board (17) is located on one side near the outer side plate of the substrate (12).

7. The integrated universal battery box assembly for a servo driver according to claim 1, characterized in that, The battery box cover (11) is pivotally connected to the base (12) via a pivot shaft (13).

8. The integrated universal battery box assembly for a servo drive according to any one of claims 1-7, characterized in that, A handle (14) is provided on the outer side plate of the substrate (12).

9. A servo driver, characterized in that, The device includes a driver housing (2), the side of which facing the operator is a driver main panel (9). The driver main panel (9) is provided with a grounding port (3) for grounding protection, a plurality of signal ports (4) for data and signal transmission, and a main power terminal cover (5) for covering the AC main power terminal. The driver housing (2) is provided with a battery box receiving part (7), which contains an integrated universal battery box assembly as described in any one of claims 1-8.

10. The servo driver according to claim 9, characterized in that, The battery compartment receiving part (7) is provided with a guide rail adapted to the base (12). The universal battery compartment assembly (10) is slidably connected to the driver housing (2) through the guide rail. The battery compartment receiving part (7) is provided with a buckle (8). The base (12) is provided with a slot. The buckle (8) is engaged with the slot to hold the universal battery compartment assembly (10) on the driver housing (2).

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