Battery pack module for auxiliary power supply of encoder

Abstract

The utility model relates to the technical field of encoders, in particular to a battery pack module for auxiliary power supply of an encoder, the battery pack module is arranged inside the encoder and consists of a plurality of batteries, a battery bracket and a shell, the battery bracket is sealed in the shell by glue and comprises a battery holder and a baffle plate, the battery holder is cylindrical, and the baffle plate is arranged on the battery holder. A notch is formed in the axial edge of the battery holder, a baffle is arranged upwards along the edge of the notch, and a space defined by the notch, the baffle and the shell is used for storing a connecting wire in the encoder; the multiple batteries are connected in parallel through the battery support and supply power to the encoder when the control system is in a closed mode. According to the utility model, the battery pack of the encoder is modularized and is installed in the encoder, so that inconvenience caused by external batteries in the production process is avoided; and a plurality of batteries are connected in parallel to supply power through the battery bracket, so that the service life of the encoder is greatly prolonged, and the process of frequently replacing the batteries in the later period is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, and specifically provides a battery pack module for auxiliary power supply of encoders. Background Art

[0002] The photoelectric encoder is a digital inspection device that integrates optics, mechanics and electricity. It is a sensor that converts the mechanical and geometric displacement input to the shaft into pulses or digital quantities through a photoelectric conversion circuit.

[0003] The absolute encoder is a common photoelectric encoder that can directly read the current position without referring to the position at the start of the movement. Absolute encoders are divided into single-turn absolute encoders and multi-turn absolute encoders according to the number of turns. Single-turn absolute encoders can only measure angles from 0 to 360°, while multi-turn absolute encoders can not only measure angles from 0 to 360°, but also a larger range, such as 720° (2 turns), 1260° (3 turns), etc.

[0004] There are three commonly used counting schemes for multi-turn absolute encoders on the market, namely battery-held, gear multi-turn and Wiegand counting. Among them, the working power supply of the battery-held multi-turn absolute encoder is set outside the encoder, and is divided into main power supply and auxiliary power supply. The main power supply is the normal working power supply. After the main power supply is cut off, in order to ensure the reliability of multi-turn counting, the auxiliary power supply continues to provide power to the encoder. The multi-turn absolute encoder is divided into two modes during operation: normal mode and off mode. The normal mode is the working state of the main power supply; the off mode is the main power supply is cut off, and the auxiliary power supply is supplied. At this time, it enters a low power consumption state. The low power consumption state mainly ensures the reliability of the multi-turn technology. Figure 1 As shown, the existing battery-retained encoder sets the battery outside the encoder, which requires a special battery protection structure and takes up a large space. The external battery structure brings inconvenience and impact to the operation of the encoder, and the battery life of the encoder is currently short and needs to be replaced regularly, which increases maintenance costs. Utility Model Content

[0005] In order to solve the above-mentioned problem, the utility model provides a battery pack module for auxiliary power supply of an encoder. Through the design of a battery bracket, multiple batteries are connected in parallel to power the encoder, and the battery bracket is arranged inside the encoder. The encoder is powered by a built-in battery pack, which not only avoids the design of a battery protection device, but also extends the service life of the battery pack module and avoids frequent replacement of batteries.

[0006] The utility model provides a battery pack module for auxiliary power supply of an encoder, which is arranged inside the encoder and includes multiple batteries, a battery bracket and a shell;

[0007] The shell is a hollow cylinder with an opening at one end, and a ring-shaped glue groove is opened on the side wall; the battery holder is arranged in the shell, and the battery holder is sealed by injecting glue into the glue groove, and the battery holder includes a battery seat and a baffle;

[0008] The battery holder is cylindrical, with multiple circular holes opened along its axial direction, a notch opened along the axial edge of the battery holder, a baffle plate upwardly arranged along the edge of the notch, and the space surrounded by the notch, the baffle plate and the shell is used to store the connecting wires in the encoder;

[0009] The batteries are arranged in the circular holes of the battery holder, connected in parallel, and are powered when the encoder is in the off mode.

[0010] Preferably, it also includes a circuit board, which is arranged above the battery bracket and connected to the positive and negative electrodes of the battery through wires.

[0011] Preferably, the negative electrode of the battery is arranged in the circular hole and faces the shell, and an insulating sticker is also arranged at the bottom of the negative electrode of the battery to prevent the negative electrode of the battery from being short-circuited with the shell.

[0012] Preferably, the cross-sectional shape of the notch is "V"-shaped or "U"-shaped.

[0013] Preferably, the number of batteries is not less than 2.

[0014] Preferably, the number of the glue grooves is not less than 2, and the spacing between the glue grooves is equidistant or unequal.

[0015] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0016] The utility model modularizes the battery pack of the encoder and installs it inside the encoder. Compared with the existing external battery module, there is no need to design a battery protection device when it is installed inside the encoder, and the inconvenience caused by the external battery to the production process is also avoided. In addition, the utility model uses a battery holder to power multiple batteries in parallel, which greatly extends the service life of the encoder. On average, each battery can increase the life of the encoder by 1 to 2 years, avoiding the process of frequent battery replacement in the later stage. At the same time, the method of powering multiple batteries in parallel can prevent the problem of product damage caused by a single battery defect, and has a higher fault tolerance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an existing battery-retained encoder external battery solution in the background technology;

[0018] Figure 2 It is a schematic diagram of auxiliary power supply for an encoder based on a battery pack module for auxiliary power supply for an encoder provided according to an embodiment of the utility model;

[0019] Figure 3 is a top view of a battery pack module for auxiliary power supply of an encoder provided according to an embodiment of the utility model;

[0020] Figure 4 is a side cross-sectional view of a battery pack module for auxiliary power supply of an encoder provided according to an embodiment of the utility model;

[0021] Figure 5 It is a structural diagram of a battery bracket provided according to an embodiment of the utility model;

[0022] Figure 6 It is a structural diagram of a battery provided according to an embodiment of the utility model.

[0023] Reference numerals include:

[0024] Battery 1, shell 2, glue groove 21, battery bracket 3, battery seat 31, baffle 32, notch 311, circular hole 312, wire hole 313, insulation sticker 4, circuit board 5. DETAILED DESCRIPTION

[0025] Hereinafter, embodiments of the present utility model will be described with reference to the accompanying drawings. In the following description, the same modules are represented by the same reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, the detailed description thereof will not be repeated.

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and do not constitute a limitation of the utility model.

[0027] The present invention provides a battery pack module for auxiliary power supply of an encoder, which adopts a modular design and is arranged inside the encoder. Specifically, Figure 2 As shown, the battery pack module is arranged inside the encoder as a separate component to provide auxiliary power supply to the single-turn module of the encoder.

[0028] The main structure of the battery pack module for auxiliary power supply of the encoder includes a battery 1, a housing 2, a battery bracket 3, an insulating sticker 4 and a circuit board 5, wherein Figure 3 , Figure 4 and Figure 5As shown, the shell 2 is a hollow cylinder with an opening at one end, and a plurality of annular glue grooves 21 are formed at the bottom of the side wall, and the spacing between the plurality of glue grooves 21 can be set to be the same or different. The battery holder 3 is used to provide support for the multiple batteries 1, and is arranged inside the shell 2, and the potting glue is injected into the glue groove 21 through the contact gap between the shell 2 and the battery holder 3, so as to pot the battery holder 3 inside the shell 2. The battery holder 3 can be prepared by rapid prototyping technology such as 3D printing.

[0029] As a preferred embodiment, the glue groove 21 may also adopt other shapes, such as a spiral groove, which is easier to inject glue.

[0030] The battery holder 3 includes a battery holder 31 and a baffle 32. The battery holder 31 is a flat cylindrical shape, and a notch 311 with a certain angle is opened along the axial edge of the battery holder 31. The baffle 32 is arranged upward along the edge of the notch 311. The notch 311, the baffle 32 and the housing 2 will enclose a space with one end open, and the space is used to store the connection wires and plugs between the encoder circuit boards.

[0031] As a preferred embodiment, the notch 311 can be designed as a "V"-shaped or "U"-shaped groove structure. In addition, the shape of the notch 311 can also be changed according to the requirements of different types or different number encoders.

[0032] A plurality of circular holes 312 for installing the battery 1 are also provided on the battery holder 31. In the present embodiment, 7 circular holes 312 are provided on the battery holder 31. Adjacent circular holes 312 can be connected through through holes or relatively isolated. The bottom of the circular hole 312 can be completely conductive, or a baffle can be designed at the bottom to make the size of the bottom opening smaller, so as to support the battery 1. A wire hole 313 is also provided at the edge of the circular hole 312, and the wire hole 313 is connected to the circular hole 312, and the axes of the two are parallel to each other. In the present embodiment, the negative electrode of the battery is installed at the bottom of the circular hole 312, and multiple batteries are connected in parallel through wires. A layer of insulating sticker 4 is also provided at the bottom of the battery holder 31, and the insulating sticker 4 can be made of PC material or other insulating materials. The insulating sticker 4 is attached to the negative electrode of all batteries 1, and the insulating sticker 4 completely covers the negative electrode of the battery 1, which is used to prevent the battery 1 from short-circuiting with the housing 2, avoid leakage, and effectively improve the power supply reliability.

[0033] In this embodiment, there are 7 batteries 1, all of which are lithium batteries, and are installed in each circular hole 312. The battery 1 is installed vertically. The circular hole 312 on the battery holder 31 can also be tilted or horizontally processed according to needs, so that the battery 1 can be installed tilted or horizontally. Figure 6As shown, the positive and negative electrodes of the battery 1 are connected to the circuit board 5 through wires, and the wires on the negative electrode of the battery 1 are routed through the corresponding wire holes 313. The 7 batteries 1 are connected in parallel, and a battery reverse connection protection circuit is designed, and the encoder is powered when the control system is in the off mode. When the main power supply of the encoder is cut off, the encoder is in the off mode, and the battery pack module provided in the embodiment of the utility model is immediately switched to the auxiliary power supply, and multiple laps are counted in a low power consumption state. Compared with conventional battery packs, the battery pack module provided in the embodiment of the utility model is used to power the encoder, which can effectively extend the service life of the encoder, and the service life can reach about 7 to 8 years, avoiding the later maintenance of frequent battery replacement, especially in some high-precision large-scale machinery, battery replacement is very troublesome, and the battery pack module proposed in the embodiment of the utility model has extremely high economic value and application prospects.

[0034] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0035] The above specific implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A battery pack module for auxiliary power supply of an encoder, characterized in that: It is arranged inside the encoder and includes multiple batteries, a battery holder and a housing; The shell is a hollow cylinder with an opening at one end, and a ring-shaped glue groove is opened on the side wall of the shell; the battery holder is arranged in the shell, and the battery holder is sealed by injecting glue into the glue groove, and the battery holder includes a battery seat and a baffle; The battery holder is cylindrical, with a plurality of circular holes opened along its axial direction, a notch opened along the axial edge of the battery holder, and the baffle plate is arranged upward along the edge of the notch, and the space enclosed by the notch, the baffle plate and the shell is used to store the connecting wires in the encoder; The battery is arranged in the circular hole of the battery holder, connected in parallel, and supplies power to the encoder when the control system is in the shutdown mode.

2. The battery pack module for auxiliary power supply of encoder according to claim 1, characterized in that: It also includes a circuit board, which is arranged above the battery bracket and connected to the positive electrode and the negative electrode of the battery through a wire.

3. The battery pack module for auxiliary power supply of encoder according to claim 2, characterized in that: The negative electrode of the battery is arranged in the circular hole and faces the shell. An insulating sticker is also arranged at the bottom of the negative electrode of the battery to prevent the negative electrode of the battery from being short-circuited with the shell.

4. The battery pack module for auxiliary power supply of encoder according to claim 1, characterized in that: The cross-sectional shape of the notch is "V"-shaped or "U"-shaped.

5. The battery pack module for encoder auxiliary power supply according to claim 1, characterized in that: The number of the batteries is not less than 2.

6. The battery pack module for auxiliary power supply of encoder according to claim 1, characterized in that: The number of the glue grooves is not less than 2, and the spacing between the glue grooves is equidistant or unequal.

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