Electronic device and battery holder

Abstract

Provided are an electronic device and a battery holder that enable use of different shapes of batteries. An electronic device (1) has a detachable battery holder (100) that holds a battery (10), wherein in the electronic device (1), a positive electrode terminal (42) and a negative electrode terminal (43) are arranged and disposed, the battery holder (100) constitutes a battery unit (101) by the battery (10) and a spacer (13) that defines the position of the battery (10), in the battery unit (101), a positive electrode terminal (10a) and a negative electrode terminal (10b) are arranged and disposed on one end side, the battery unit (101) is abutted and supported by a wall portion (100b) that stands up at one end portion of the battery holder (100) in a manner that the positive electrode terminal (10a) and the negative electrode terminal (10b) are exposed, and the positive electrode terminal (42) and the negative electrode terminal (43) of the electronic device (1) are disposed so as to be able to be extended and contracted.

Description

Technical Field

[0001] This invention relates to battery-powered electronic devices and battery holders for use in battery-powered electronic devices. Background Technology

[0002] Since battery-powered electronic devices do not require connection to an external power source, they can be used in any location.

[0003] For example, the sensor device shown in Patent Document 1 is an electronic device that senses the state of a manufacturing apparatus installed on a manufacturing line, and uses a button cell battery as its power source. Furthermore, the sensor device can be powered by inserting a battery holder holding the button cell battery into a slit-like insertion portion of the sensor device's housing. The battery holder has a support substrate with a first terminal and a second terminal respectively contacting the positive and negative terminals of the button cell battery, a processing circuit for processing the output of the sensor element, a communication circuit for communicating with the outside, and a connector for electrically connecting to the sensor element. By holding the button cell battery in the battery holder and inserting it into the insertion portion of the housing, the terminals of the sensor element fixed inside the housing are electrically connected to the connector of the battery holder.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2019-153485 (pages 8-9) Figure 6 ) Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] In the sensor device of Patent Document 1, power is supplied to the sensor element by holding the button cell battery in a battery holder and inserting it into the insertion part of the housing. Therefore, no additional power switch is required, reducing the number of contact points. However, the sensor device of Patent Document 1 consists of a pair of elastic arms shaped such that the second terminal provided on the battery holder is aligned with the outer peripheral surface of the button cell battery. That is, it is shaped to radially clamp the button cell battery from the second terminal provided on the battery holder, thus preventing the use of batteries with shapes other than button cells.

[0009] This invention was made with regard to such a problem in mind, and its purpose is to provide electronic devices and battery holders that can use batteries of different shapes.

[0010] Methods for solving problems

[0011] To address the aforementioned issues, the electronic device of the present invention has a detachable battery holder that holds a battery, wherein a positive terminal and a negative terminal are arranged in the electronic device, and the battery holder constitutes a battery cell by means of the battery and spacers defining the position of the battery, wherein a positive terminal and a negative terminal are arranged in the battery cell at one end, and the battery cell is abutted and supported by a wall portion erected at one end of the battery holder to expose the positive terminal and the negative terminal, wherein at least one of the positive terminal and the negative terminal of the electronic device and the positive terminal and the negative terminal of the battery cell is configured to be retractable.

[0012] Therefore, by using spacers that correspond to the shape of the batteries used in the battery cell, batteries of different shapes and spacers can be held using a battery holder. Furthermore, by having the wall portion erected at one end of the battery holder abut against the electronic device, the positive and negative terminals arranged at one end of the battery cell can be elastically pressed against the positive and negative terminals of the electronic device, thus enabling reliable power supply using batteries of different shapes.

[0013] Alternatively, the wall portion may be located between the positive and negative terminals of the electronic device or between the positive and negative terminals of the battery cell.

[0014] Therefore, the battery cells can be supported evenly, and the positive and negative terminals are not easily short-circuited.

[0015] Alternatively, the battery holder may have claws for clamping the battery and the spacer.

[0016] Therefore, by using claws to hold the battery and spacers, the battery holder can more stably hold the battery and spacers. This allows for reliable contact between the positive and negative terminals of the battery cell and the positive and negative terminals of the electronic device.

[0017] Alternatively, the spacers may be prepared according to the different shapes of the batteries.

[0018] Therefore, even with batteries of different shapes, by using spacers corresponding to those shapes, it is possible to make the positive and negative terminals of the arranged battery cells contact the positive and negative terminals of the electronic device.

[0019] Alternatively, the positive and negative terminals of the battery can be the positive and negative terminals of the battery cell, and the spacer abuts against the other end of the battery and the battery holder.

[0020] Therefore, the positive and negative electrodes of the battery can be directly used as the positive and negative terminals of the battery cell, thus simplifying the structure of the spacer.

[0021] Alternatively, the battery may be a button cell, and the spacer may have a base component, on which a holder capable of holding the button cell and the positive and negative terminals electrically connected to the button cell may be provided.

[0022] Therefore, the positive and negative terminals of the base component can be arranged at one end of the battery cell to serve as the positive and negative terminals of the battery cell. Furthermore, at one end of the battery holder, the wall portion can abut against and support the battery cell holding the button cell, thus positioning the positive and negative terminals of the battery cell in a predetermined position.

[0023] The battery holder of the present invention is applied to an electronic device having positive and negative terminals arranged in an array. The battery holder holds a battery, wherein a battery cell is formed in the battery holder by the battery and a spacer defining the position of the battery. In the battery cell, positive and negative terminals are arranged in an array at one end. The battery cell is abutted and supported by a wall portion erected at one end of the battery holder to expose the positive and negative terminals. The positive and negative terminals of the electronic device and at least one of the positive and negative terminals of the battery cell are configured to be retractable.

[0024] Therefore, by using spacers that correspond to the shape of the batteries used in the battery cell, batteries and spacers of different shapes can be held using a battery holder. Furthermore, by having the wall portion erected at one end of the battery holder abut against the electronic device, the positive and negative terminals arranged at one end of the battery cell can be elastically pressed against the positive and negative terminals of the electronic device, thus enabling reliable power supply using batteries of different shapes. Attached Figure Description

[0025] Figure 1 This is a perspective view of a pressure sensor according to Embodiment 1 of the present invention.

[0026] Figure 2 This is an exploded perspective view showing the construction of the pressure sensor of Embodiment 1.

[0027] Figure 3 This is a cross-sectional view showing the construction of the pressure sensor in Embodiment 1.

[0028] Figure 4 This is a perspective view showing the structure of the inner casing and battery holder. Additionally, for ease of explanation, Figure 4The image shows the state after the outer casing has been removed.

[0029] Figure 5 This is a perspective view showing the structure of the inner shell. Additionally, for ease of explanation, Figure 5 The image shows the state after the outer casing has been removed.

[0030] Figure 6 It is along Figure 3 A cross-sectional view along line AA.

[0031] Figure 7 This is an exploded perspective view showing the structure of the battery cell of Embodiment 1.

[0032] Figure 8 (a) is a perspective view showing the structure of the battery cell according to Embodiment 2 of the present invention. Figure 8 (b) is an exploded perspective view of the structure of the battery cell in this embodiment 2.

[0033] Figure 9 (a) is a perspective view showing the structure of the battery cell according to Embodiment 3 of the present invention. Figure 9 (b) is an exploded perspective view of the structure of the battery cell in this embodiment 3.

[0034] Figure 10 This is a perspective view showing the structure of the positive and negative terminals of the pressure sensor according to Embodiment 4 of the present invention.

[0035] Figure 11 This is a perspective view showing the structure of the positive and negative terminals of the pressure sensor according to Embodiment 5 of the present invention.

[0036] Figure 12 This is a perspective view showing the structure of the battery cell according to Embodiment 6 of the present invention.

[0037] Figure 13 This is a perspective view showing the structure of the battery cell according to Embodiment 7 of the present invention.

[0038] Figure 14 This is a perspective view showing the structure of the battery cell according to Embodiment 8 of the present invention.

[0039] Figure 15 This is a cross-sectional view showing the structure of the battery cell according to Embodiment 9 of the present invention.

[0040] Figure 16 This is a cross-sectional view showing the structure of the battery cell according to Embodiment 10 of the present invention. Additionally, in Figure 16 In the image, only the battery holder is shown in cross-section.

[0041] Figure 17 This is a cross-sectional view showing the structure of the battery cell according to Embodiment 11 of the present invention. Additionally, in Figure 17 In the image, only the battery holder is shown in cross-section.

[0042] Figure 18 This is a cross-sectional view showing the structure of the battery cell according to Embodiment 12 of the present invention. Additionally, in Figure 18 In the image, only the battery holder is shown in cross-section.

[0043] Figure 19 (a) is a perspective view showing the structure of the battery cell according to Embodiment 13 of the present invention. Figure 19 (b) is an exploded perspective view of the structure of the battery cell in this embodiment 13. Detailed Implementation

[0044] Hereinafter, embodiments of an electronic device for implementing the present invention will be described.

[0045] Example 1

[0046] Reference Figures 1 to 7 The electronic device of Example 1 will be described below. Figure 3 The left and right sides when viewed from the front side will be described as the left and right sides of the electronic device. Specifically, the left side of the paper where the sensor unit 30 is located will be described as the left side of the electronic device, and the right side of the paper where the cap member 23 is mounted will be described as the right side of the electronic device.

[0047] like Figure 1 As shown, the electronic device of the present invention is configured to detect the pressure of the object being measured, and uses a battery 10 (see reference 10). Figure 2 Pressure sensor 1 serves as the power source. The pressure sensor 1 is fixed to a mounting location such as a pipe, tube, or box (not shown) and detects the pressure of the object being measured inside the mounting location. The object being measured is a fluid such as a liquid or gas.

[0048] like Figure 1 As shown, the pressure sensor 1 mainly comprises a housing 20, a sensor unit 30, and a battery holder 100 (see reference). Figure 2 ) and circuit unit 40 (refer to Figure 3 The sensor unit 30 is mounted on the left end of the housing 20. The battery holder 100 is housed inside the housing 20 to hold the battery 10.

[0049] The pressure sensor 1 is fixed and used, for example, by screwing the threaded portion 20a of the housing 20 into the threaded mounting port of a pipe (not shown). The threaded portion 20a is formed at the left end of the outer peripheral surface of the housing 20. Thus, the sensor element (not shown) provided in the sensor unit 30 outputs a voltage corresponding to the pressure applied by the fluid in the pipe being measured. Processing chip 31 (see reference) Figure 3 The voltage is converted into a pressure signal.

[0050] like Figure 2 and Figure 3 As shown, the housing 20 has a mounting component 21, an outer shell 121, and an inner shell 122 (see reference). Figure 4 and Figure 5 A threaded portion 20a is formed at the left end of the mounting component 21 (see reference). Figure 1 The outer shell 121 has a cover member 22 mounted on the right end of the mounting member 21 and a cap member 23 that closes the opening 22a on the right side of the cover member 22. The inner shell 122 is fixed to the mounting member 21 and is covered by the cover member 22 and the cap member 23, i.e., the outer shell 121.

[0051] like Figure 3 As shown, the mounting component 21 has: a cylindrical base 21a; a small-diameter portion 21b extending to the left from the base 21a; a flange portion 21c protruding from the right end of the outer peripheral surface of the base 21a toward the outer diameter side; and a large-diameter portion 21d extending to the right from the base 21a.

[0052] The small diameter portion 21b has the aforementioned threaded portion 20a formed on its outer peripheral surface (see reference). Figure 1 Additionally, an annular recess 21e is formed at the right end of the outer peripheral surface of the small-diameter portion 21b, and an O-ring 24 is installed in the recess 21e. Furthermore, by screwing the threaded portion 20a formed on the outer peripheral surface of the small-diameter portion 21b into the mounting port of a pipe (not shown), the O-ring 24 is clamped between the pipe and the mounting component 21, ensuring a tight seal.

[0053] Additionally, a recessed portion 21f is formed at the left end of the small diameter portion 21b, which is recessed to the right. The sensor unit 30 is inserted from the left and welded and fixed in this recessed portion 21f. Although detailed descriptions are omitted, a tight seal is ensured so that fluid from the measured object does not enter the through hole 21m where the processing chip 31 is located.

[0054] The large diameter portion 21d has a threaded portion 21g formed on its outer circumferential surface (see reference). Figure 4 and Figure 5 Additionally, an annular recess 21h is formed at the left end of the outer peripheral surface of the large diameter portion 21d, and an O-ring 25 is installed in the recess 21h. Furthermore, by screwing a threaded portion (not shown) formed on the inner peripheral surface of the left end of the cover member 22 with a threaded portion 21g formed on the outer peripheral surface of the large diameter portion 21d, the O-ring 25 is clamped between the mounting member 21 and the cover member 22, ensuring a tight seal.

[0055] Furthermore, a stepped recess 21k, recessed to the left, is formed at the right end of the large-diameter portion 21d, and a portion of the circuit unit 40 is housed in this recess 21k. Additionally, the recess 21f formed in the small-diameter portion 21b and the recess 21k formed in the large-diameter portion 21d are connected by a through hole 21m extending through the base 21a in a left-right direction. Furthermore, the sensor unit 30 and the circuit unit 40 are electrically connected via a flexible printed wiring board (not shown) extending within the through hole 21m.

[0056] Here, circuit unit 40 will be described. For example... Figure 3 As shown, the circuit unit 40 mainly includes a circular circuit board 41, a positive terminal 42, a negative terminal 43, and a rectangular circuit board 45 (see reference) housing a processing chip 44 and a wireless chip 46. Figure 5 The circuit board 41 is housed within the recess 21k of the large-diameter portion 21d of the mounting member 21. The positive terminal 42 and the negative terminal 43 extend through the circuit board 41 along its thickness direction and are arranged in an orderly manner. The circuit board 45 is held on the outer surface of the first plate portion 122d of the inner housing 122 (described later). The processing chip 44 performs functions such as adjusting the power supplied from the battery 10 and processing signals input from the sensor unit 30. A wireless chip 46 is mounted on the circuit board 45 for communication with external devices. Furthermore, the circuit boards 41 and 45 are electrically connected via a flexible flat cable 47. Alternatively, the positive terminal 42 and the negative terminal 43 may not extend through the circuit board 41 along its thickness direction.

[0057] like Figure 3 and Figure 4 As shown, the positive terminal 42 and the negative terminal 43 are so-called probes, having force-applying units (not shown). The electrical contacts of the positive terminal 42 and the negative terminal 43 are axially expandable and contractible, and are applied force in the outward direction. Specifically, the positive terminal 42 and the negative terminal 43 are inserted through through holes 122b and 122c formed in a manner that penetrates the base 122a of the inner shell 122 along the thickness direction. The positive terminal 42 and the negative terminal 43 are supported so that they can retract to the left with their electrical contacts protruding from the through holes 122b and 122c, respectively. Furthermore, as... Figure 3 As shown, with the battery holder 100 installed, the positive terminal 42 and the negative terminal 43 are slightly retracted to the left. That is, the positive terminal 42 and the negative terminal 43 are elastically pressed against the positive terminal 10a and the negative terminal 10b of the battery 10 held by the battery holder 100, respectively.

[0058] In this way, by contacting the positive terminal 42 and the negative terminal 43 with the positive terminal 10a and the negative terminal 10b of the battery 10 held by the battery holder 100, the circuit unit 40 can supply power to the sensor unit 30. In addition, the circuit unit 40 can receive pressure signal input from the sensor unit 30, perform signal processing through the processing chip 44, and communicate with the outside through the wireless chip 46.

[0059] like Figure 2 and Figure 3 As shown, the cover member 22 constituting the outer casing 121 is cylindrical, and the cover member 22 is connected to the threaded portion 21g formed on the outer peripheral surface of the large diameter portion 21d of the mounting member 21 (see reference). Figure 4 and Figure 5 The cover member 22 is screwed together for installation. In addition, the threaded portion 23c of the cap member 23 constituting the outer shell 121 is also screwed into the right end of the cover member 22, thereby closing the opening 22a.

[0060] The cap component 23 has a circular base 23a and a small-diameter portion 23b protruding to the left from the left side of the base 23a. A threaded portion 23c is formed on the outer peripheral surface of the small-diameter portion 23b (see reference). Figure 2 Furthermore, an annular recess 23d is formed at the right end of the outer peripheral surface of the small diameter portion 23b, and an O-ring 26 is installed within this recess 23d. Additionally, by screwing the threaded portion 23c of the cap member 23 into a threaded portion (not shown) formed on the inner peripheral surface of the right end of the cover member 22, the O-ring 26 is clamped between the cover member 22 and the cap member 23, ensuring a tight seal. In this way, the internal space of the housing 121, which houses the circuit unit 40 and the battery holder 100, is divided in a substantially sealed manner.

[0061] Additionally, a recessed portion 23e is formed at the left end of the small diameter portion 23b, which is recessed to the right, and a handle 100d formed at the right end of the battery holder 100 is housed in the recessed portion 23e.

[0062] like Figures 3-6 As shown, the inner shell 122 is formed of resin material and has a base 122a and a direction from the base 122a toward the cap member 23, i.e., to the right (in Figure 4 The first plate portion 122d and the second plate portion 122e extend from the left side (in the middle). Additionally, the base 122a of the inner shell 122 is secured by screws 123 (see reference). Figure 4 It is fixed to the mounting component 21.

[0063] As described above, through holes 122b and 122c are arranged and formed on the base 122a. Additionally, as... Figure 3As shown, a plurality of protrusions 122f protruding to the left are formed on the outer diameter side of the left surface of the base 122a. When the inner shell 122 is fixed to the mounting member 21, these protrusions 122f clamp the outer diameter portion of the circuit board 41 constituting the circuit unit 40 in the left-right direction between these protrusions 122f and the stepped portion formed in the recess 21k of the mounting member 21. Thus, the circuit board 41 can be stably supported between the inner shell 122 and the mounting member 21 (see reference). Figure 3 ).

[0064] Additionally, on the right surface of base 122a (in) Figure 4 A boss 122g is provided on the left surface (in the middle), and the boss 122g forms a through hole for the screw 123 to be inserted.

[0065] like Figure 4 and Figure 6 As shown, the inner surface of the first plate portion 122d is curved along the surface shape of the battery 10 held by the battery holder 100. Additionally, at the left end of the inner surface of the first plate portion 122d (in... Figure 4 A rectangular protrusion 122h is formed at the right end of the battery 10. This protrusion 122h can interact with a recess 10c formed on the surface of the battery 10 (see reference). Figure 2 and Figure 3 The battery holder 100 is fitted into the inner housing 122. This restricts the insertion and removal direction of the battery holder 100 relative to the inner housing 122, and prevents the battery 10 from being connected in reverse.

[0066] In addition, such as Figure 5 and Figure 6 As shown, the outer surface of the first plate portion 122d has a flat surface at approximately the center of its upper and lower parts. At the upper and lower ends, a pair of hook-shaped protrusions 122k are provided at two locations in the left and right directions to hold the circuit board 45 constituting the circuit unit 40. Furthermore, the circuit board 45 is inserted from the right side of the first plate portion 122d between the upper and lower protrusions 122k. Additionally, the upper and lower side surfaces of the first plate portion 122d are curved along the inner peripheral surface of the cover member 22 constituting the outer casing 121.

[0067] like Figure 4 and Figure 6 As shown, the dimension of the second plate portion 122e in the vertical direction, i.e., the width direction, is smaller than the dimension of the first plate portion 122d in the width direction. Furthermore, the second plate portion 122e has a pair of protruding strips 122m formed on the inner surface sides of its upper and lower ends, extending in the horizontal direction, i.e., the length direction, which is the insertion / removal direction of the battery holder 100. Additionally, the cross-section of the protruding strips 122m is semi-circular.

[0068] Additionally, on the inner surface of the second plate portion 122e, at the right end (in Figure 4The middle part (left end) has a pair of hemispherical protrusions 122n.

[0069] Additionally, at the right end of the second plate portion 122e (in Figure 4 A roughly rectangular cutout 122s is formed approximately at the center of the upper and lower parts of the second plate 122e (the left end). Furthermore, by forming the cutout 122s on the second plate 122e, interference between the second plate 122e and tools such as screwdrivers is prevented. This makes it easier to screw the screw 123 into the through hole of the boss 122g formed in the base 122a.

[0070] Next, the battery holder 100 will be described. In this embodiment 1, the method of holding the battery pack type lithium battery 10 (hereinafter simply referred to as "battery 10") and the spacer 13 will be described. The battery pack type lithium battery 10 has a positive electrode 10a and a negative electrode 10b arranged at one end of the battery holder 100 along its length direction. The spacer 13 is formed of resin material. In this embodiment 1, the battery holder 100 constitutes a battery cell 101 by holding the battery 10 and the spacer 13. In this embodiment 1, the positive and negative terminals of the battery cell 101 are the positive electrode 10a and the negative electrode 10b of the battery 10.

[0071] like Figure 6 and Figure 7 As shown, the battery holder 100 mainly includes a base 100a, wall portions 100b and 100c, and a handle 100d. The inner surface of the base 100a is curved along the surface shape of the battery 10. The wall portion 100b is formed into a generally triangular shape that rises from the left end of the base 100a toward the inner surface. The wall portion 100c is formed into a rectangular shape that rises from the right end of the base 100a toward the inner surface. The handle 100d extends to the right from the wall portion 100c.

[0072] like Figure 2 As shown, the wall portion 100b is approximately triangular in shape. With the battery 10 and spacer 13 held in the battery holder 100, the wall portion 100b abuts against one end of the battery 10 along its length. Thus, the positive electrode 10a and negative electrode 10b of the battery 10 emerge from the cut-out spaces 100k and 100m (see reference) of the battery holder 100. Figure 7 The positive terminal 42 and the negative terminal 43 can be inserted through the wall portion 100b respectively, and the positive terminal 10a and the negative terminal 10b of the battery 10 can be exposed in such a way that they can contact the positive terminal 42 and the negative terminal 43 respectively. The shape can be freely configured, or a through hole can be formed in the wall portion to replace the cut shape.

[0073] At the upper and lower ends of the base 100a, claws 100e are provided at three locations in the left and right directions to hold the battery 10 and the spacer 13 in a pair.

[0074] In addition, such as Figure 6 As shown, the outer surface of the base 100a has a flat surface at approximately the center of its upper and lower parts, forming an insertion recess 100f. The insertion recess 100f is located on the left side where the wall portion 100b is formed (in... Figure 4 The inner shell 122's second plate 122e can be opened from the right side (in the middle). Figure 4 (The middle is on the left) Insertion. A pair of recessed grooves 100g are formed on the inner surface of the upper and lower inner walls of the insertion recess 100f, extending in the left-right direction (length direction) and facing each other in the up-down direction (width direction) as the insertion and removal direction of the battery holder 100. In addition, the cross-section of the recessed grooves 100g is semi-circular, and together with the pair of protruding parts 122m formed in the inner shell 122, they constitute a pair of guide parts G for guiding the movement of the battery holder 100 in the insertion and removal direction.

[0075] Additionally, at the left end of the bottom surface of the insertion recess 100f (in Figure 4 The right end of the inner shell 122 has a pair of hemispherical recesses 100h. These recesses 100h can engage with the pair of protrusions 122n formed on the inner shell 122, forming a positioning mechanism P for the battery holder 100 and locking it to prevent undesirable left-right movement of the battery holder 100. Furthermore, when the protrusions 122n and recesses 100h are engaged, the wall portion 100b of the battery holder 100 abuts against the right surface of the base portion 122a of the inner shell 122 (see reference). Figure 3 ).

[0076] like Figure 2 and Figure 3 As shown, with the battery 10 and spacer 13 held in the battery holder 100, the battery 10 has a positive electrode 10a and a negative electrode 10b arranged at its left end (one end along the length direction). Furthermore, the spacer 13 is located at the right end (the other end along the length direction) of the battery 10 and the wall 100c of the battery holder 100 (see reference). Figure 4 and Figure 7 The contact point defines the position of the battery 10. Furthermore, the lateral distance between the walls 100b and 100c of the battery holder 100 is configured to be the same as or slightly shorter than the sum of the lateral dimensions of the battery 10 and the spacer 13.

[0077] Therefore, by using the spacer 13 corresponding to the shape of the battery 10, the battery 10 and the spacer 13 can be held together in a state where they are clamped in the longitudinal direction by the walls 100b and 100c of the battery holder 100. In addition, the positive and negative terminals of the battery cell 101, i.e., the positive electrode 10a and the negative electrode 10b of the battery 10, can be arranged at a predetermined position in the longitudinal direction at one end of the battery holder 100. Moreover, by abutting the wall 100b that stands upright at one end of the battery holder 100 in the longitudinal direction with the housing 20 of the pressure sensor 1 (specifically, the base 122a of the inner housing 122), the positive and negative terminals of the battery cell 101, i.e., the positive electrode 10a and the negative electrode 10b of the battery 10, can be elastically pressed against the positive terminal 42 and the negative terminal 43 of the pressure sensor 1, thereby reliably providing power.

[0078] Furthermore, since the wall portion 100b is located near the positive electrode 10a and the negative electrode 10b, it is easy to remove and install the battery holder 100 when replacing the battery, and the positive electrode 10a and the negative electrode 10b are less likely to come into contact with other components during removal and installation. Here, the positive and negative terminals of the battery cell 101 only need to be arranged vertically, and their left and right positions can be different.

[0079] In addition, such as Figure 7 As shown, the wall portions 100b and 100c of the battery holder 100 are cantilevered plates, i.e., sheet-like shapes, that rise from the left and right ends of the base 100a by means of slit-like spaces formed along the top and bottom. As a result, the battery 10 and the spacer 13 can be easily held elastically in the length direction by using the wall portions 100b and 100c of the battery holder 100.

[0080] Furthermore, since the wall portion 100b is located between the positive electrode 10a and the negative electrode 10b, it can evenly support the battery cell 101. Moreover, the positive electrode 10a and the negative electrode 10b are less prone to short circuits.

[0081] In addition, since the positive electrode 10a and the negative electrode 10b do not protrude outward from the wall 100b, other components are less likely to come into contact with the positive electrode 10a and the negative electrode 10b when the battery is replaced.

[0082] In addition, in this embodiment 1, the positive electrode 10a and negative electrode 10b of the battery 10 can be directly used as the positive and negative terminals of the battery cell 101, thus simplifying the structure of the spacer 13.

[0083] Furthermore, the battery holder 100 has a wall portion 100b that abuts against one end of the battery 10 in the longitudinal direction. A cutout is provided in the wall portion 100b to expose the positive electrode 10a and negative electrode 10b of the battery 10, which are the positive and negative terminals of the battery cell 101. This allows the positive electrode 10a and negative electrode 10b of the battery 10 to be exposed through the cutout in the wall portion 100b while the wall portion 100b abuts against one end of the battery 10 in the longitudinal direction. In other words, the longitudinal position of the positive and negative terminals of the battery cell 101 is restricted to a predetermined position. This allows for reliable contact with the positive terminal 42 and negative terminal 43 of the pressure sensor 1. Additionally, it allows the battery cell 101 to be compact in the longitudinal direction.

[0084] Furthermore, the battery holder 100 has a pair of upper and lower claws 100e that clamp the battery 10 and the spacer 13 from the width direction, i.e., the direction in which the positive and negative terminals of the battery cell 101 are arranged. Thus, the battery holder 100 clamps the battery 10 and the spacer 13 not only from the length direction but also from the width direction, thereby enabling more stable holding of the battery cell 101. This allows for more reliable contact with the positive terminal 42 and the negative terminal 43 of the pressure sensor 1.

[0085] Furthermore, since the battery holder 100 can be removed and installed while the pressure sensor 1 is mounted on the piping or other mounting portion, battery replacement is easy. Specifically, the battery can be easily replaced by removing only the cap part 23 and inserting / removing only the battery holder 100 holding the battery 10 and the spacer 13, without removing the entire housing 20 from the piping or other mounting portion. As a result, the sensor unit 30 and circuit unit 40 do not need to be touched or moved during battery replacement, thus allowing stable sensing of the target object by the pressure sensor 1. Moreover, since the pressure sensor 1 does not need to be removed from the piping or other portion, the operation of the fluid system with piping does not need to be stopped when replacing the battery.

[0086] In addition, since a handle 100d is provided on the battery holder 100, the battery holder 100 can be easily pulled out from the pressure sensor 1 by using the handle 100d when removing the battery holder 100.

[0087] Alternatively, the outer shell 121 constituting the housing 20 can also be configured with a reverse thread, so that the cover part 22 and the mounting part 21 will not rotate together when the cap part 23 is disassembled, and can also be configured such that the fastening force between the cap part 23 and the cover part 22 is the weakest.

[0088] Example 2

[0089] Reference Figure 8The electronic device of Embodiment 2 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0090] like Figure 8 As shown, the battery cell 201 of this embodiment 2 has the same battery holder 100, two button batteries 210, and spacer 213 as in embodiment 1. The spacer 213 can hold the button batteries 210, and the battery holder 100 can be detached from the spacer 213 that holds the button batteries 210.

[0091] The spacer 213 includes: a retainer 214 capable of holding two button batteries 210 respectively; and a base component 215 having a positive terminal 215a and a negative terminal 215b electrically connected to the button batteries 210 and arranged at one end of the base component 215 along its length. The spacer 213 defines the position of the button batteries 210 by mounting them to the retainer 214.

[0092] The base component 215 includes: a base 215c on which a circuit board 216 is mounted; and upright portions 215d and 215e, which are erected from the left and right ends of the base 215c toward the inner surface. A positive terminal 215a and a negative terminal 215b are provided on the left upright portion 215d. The circuit board 216 electrically connects two retainers 214 to the positive terminal 215a and the negative terminal 215b.

[0093] That is, the length dimension of the base member 215 constituting the spacer 213 can be made the same as that of the battery holder 100 in Embodiment 1 above. Therefore, the spacer 213 that holds the button battery 210 can be reliably clamped in the length direction by means of the wall portions 100b and 100c of the battery holder 100.

[0094] Therefore, by using a spacer 213 that corresponds to the shape of the button cell 210, the battery cell 201 can be abutted against and supported by the wall portion 100b of the battery holder 100 (more specifically, the erected portion 215d of the base member 215 constituting the spacer 213). Thus, the positive terminal 215a and the negative terminal 215b of the battery cell 201 can be arranged in a predetermined position on the left side of the battery holder 100 along their longitudinal direction.

[0095] In addition, since the wall portion 100b is located near the positive terminal 215a and the negative terminal 215b, it is easy to remove and install the battery holder 100 when replacing the battery, and other parts are less likely to come into contact with the positive terminal 215a and the negative terminal 215b during removal and installation.

[0096] Furthermore, since the positive terminal 215a and negative terminal 215b of the spacer 213 arranged on one end of the length direction of the battery cell 201 can contact the positive terminal 42 and negative terminal 43 of the pressure sensor 1, the pressure sensor 1 can use batteries of different shapes.

[0097] In addition, since the base component 215 has two retainers 214 arranged in a manner that allows the two button batteries 210 to be arranged in a horizontal direction, the thickness of the battery cell 201 can be made thinner.

[0098] In addition, the battery unit 201 can also be used, for example, with the left retainer 214 holding a button cell battery 210.

[0099] In addition, such as Figure 8 As shown, a recess 215f is formed in the erected portion 215d of the base component 215. This recess 215f can accommodate the protrusion 122h (see reference) formed on the inner surface of the first plate portion 122d of the inner shell 122. Figure 4 This configuration restricts the insertion and removal direction of the battery holder 100 relative to the inner housing 122, thus preventing reverse connection of the button battery 210.

[0100] Example 3

[0101] Reference Figure 9 The electronic device of Embodiment 3 will be described. Furthermore, for structures identical to those in Embodiments 1 and 2 described above, repeated structural descriptions will be omitted.

[0102] like Figure 9 As shown, the battery unit 301 of this embodiment 3 has the same battery holder 100, two AA batteries 310, and spacer 313 as in embodiments 1 and 2. A series connection terminal 314 is provided on the left surface of the spacer 313 that abuts against the AA batteries 310. Alternatively, the spacer 313 and the series connection terminal 314 may be separate.

[0103] Therefore, by using a spacer 313 that corresponds to the shape of the AA battery 310, the battery cell 301 can be abutted against and supported by the wall portion 100b of the battery holder 100. Thus, the positive and negative terminals of the battery cell 301, i.e., the positive terminals 310a and negative terminals 310b of the two AA batteries 310, can be arranged in the longitudinal direction at a predetermined position on the left side of the battery holder 100.

[0104] Therefore, since the wall portion 100b is located near the positive electrode 310a and the negative electrode 310b, it is easy to remove and install the battery holder 100 when replacing the battery, and other parts are less likely to come into contact with the positive electrode 310a and the negative electrode 310b during removal and installation. Furthermore, the positive electrode 310a and the negative electrode 310b of the two AA batteries 310 arranged at one end of the battery cell 301 along its length can come into contact with the positive terminal 42 and the negative terminal 43 of the pressure sensor 1, allowing the pressure sensor 1 to use batteries of different shapes.

[0105] Example 4

[0106] Reference Figure 10 The electronic device of Embodiment 4 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0107] like Figure 10 As shown, the positive terminal 442 and negative terminal 443 of the pressure sensor 401 in this embodiment 4 are composed of spring terminals using conical compression helical springs.

[0108] Additionally, the positive terminal 442 and the negative terminal 443 are arranged on the circuit board 41 (see reference). Figure 3 The right surface of the positive terminal 442 is inserted through the through holes 122b and 122c formed in the base 122a of the inner shell 122. That is, the positive terminal 442 and the negative terminal 443 are supported in a state where they protrude from the through holes 122b and 122c respectively with electrical contacts, so that they can extend and retract.

[0109] Therefore, the positive terminal 442 and negative terminal 44 of the pressure sensor 401 in this embodiment 4 can be made into a simpler structure than the positive terminal 42 and negative terminal 43 of the above embodiment 1, which are made of probes, by using spring terminals that employ compression helical springs.

[0110] Example 5

[0111] Reference Figure 11 The electronic device of Embodiment 5 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0112] like Figure 11 As shown, the positive terminal 542 and negative terminal 543 of the pressure sensor 501 in this embodiment 5 are composed of spring terminals using thin plate springs.

[0113] Furthermore, the positive terminal 542 and the negative terminal 543 are arranged on the surface of the circuit board 41 and are inserted through through holes 522b and 522c, which are generally rectangular in shape, formed in the base 522a of the inner shell 522. That is, the positive terminal 542 and the negative terminal 543 are supported in a retractable state with electrical contacts protruding from the through holes 522b and 522c, respectively.

[0114] Therefore, the positive terminal 542 and negative terminal 543 of the pressure sensor 501 in this embodiment 5 can be made into a simpler structure than the positive terminal 42 and negative terminal 43 of the above embodiment 1, which are made of probes, by using spring terminals using thin plate springs.

[0115] Example 6

[0116] Reference Figure 12 The electronic device of Embodiment 6 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted. Additionally, although illustrations have been omitted for ease of explanation, the case where both the positive and negative terminals of the pressure sensor in Embodiment 6 are composed of non-retractable terminals will be described.

[0117] like Figure 12 As shown, in this embodiment 6, the battery holder 600 constitutes the battery cell 601 by holding the battery 10 and the spacer 13.

[0118] The wall portion 602 at the left end of the battery holder 600 is formed into a generally elliptical shape. Furthermore, a generally triangular protrusion 602a protruding to the left is formed on the left surface of the wall portion 602. Additionally, through holes 602b and 602c, which are cuts extending in the left-right direction, are arranged in the wall portion 602 at positions avoiding the protrusion 602a.

[0119] Furthermore, the positive terminal 603 and negative terminal 604 of the battery cell 601 are disposed on the right surface of the wall portion 602. Additionally, with the battery 10 and spacer 13 held in the battery holder 600, the right surface of the wall portion 602 abuts against one end of the battery 10 along its length. Thus, the positive terminal 10a and negative terminal 10b of the battery 10 come into contact with the positive terminal 603 and negative terminal 604.

[0120] The positive terminal 603 and the negative terminal 604 are so-called probes, having force-applying units (not shown). The electrical contacts of the positive terminal 603 and the negative terminal 604 are axially extendable and are subjected to force in the extending direction. Specifically, the positive terminal 603 and the negative terminal 604 are inserted through through holes 602b and 602c formed in a manner that penetrates the wall 602 of the battery holder 600 along the thickness direction. The positive terminal 603 and the negative terminal 604 are supported in a state where the electrical contacts protrude from the through holes 602b and 602c respectively, and are retractable in the rightward direction.

[0121] Therefore, by making the protrusion 602a of the wall portion 602 that stands upright at one end of the length direction of the battery holder 600 in this embodiment 7 abut against the housing of the pressure sensor, the positive terminal 603 and negative terminal 604 of the battery unit 601 can be elastically pressed against the positive terminal and negative terminal of the pressure sensor, and power can be reliably provided.

[0122] Example 7

[0123] Reference Figure 13 The electronic device of Embodiment 7 will be described. Furthermore, for structures identical to those in Embodiment 6 described above, repeated structural descriptions will be omitted.

[0124] like Figure 13 As shown, in this embodiment 7, the battery holder 700 constitutes the battery cell 701 by holding the battery 10 and the spacer 13.

[0125] The positive terminal 703 and the negative terminal 704 of the battery cell 701 are disposed on the right surface of the wall 702 of the battery holder 700.

[0126] The positive terminal 703 and the negative terminal 704 are composed of so-called spring terminals using a conical compression helical spring.

[0127] Therefore, the positive terminal 703 and negative terminal 704 of the battery cell 701 in this embodiment 7 can be a simpler structure than the positive terminal 603 and negative terminal 604 of the above embodiment 6 which are made of probes.

[0128] Example 8

[0129] Reference Figure 14 The electronic device of Embodiment 8 will be described. Furthermore, for structures identical to those in Embodiments 6 and 7 described above, repeated structural descriptions are omitted.

[0130] like Figure 14 As shown, in this embodiment 8, the battery holder 800 constitutes the battery cell 801 by holding the battery 10 and the spacer 13.

[0131] The left end wall portion 802 of the battery holder 800 is formed into a generally elliptical shape that rises inward. Additionally, a generally triangular protrusion 802a is formed on the left surface of the wall portion 802. Furthermore, cutouts 802b and 802c are arranged in the wall portion 800b at positions avoiding the protrusion 802a.

[0132] The positive terminal 803 and the negative terminal 804 are constructed using so-called spring terminals employing thin leaf springs. Specifically, the positive terminal 803 and the negative terminal 804 are inserted through slits 802b and 802c formed in the wall portion 802 of the battery holder 800. The positive terminal 803 and the negative terminal 804 are supported so that they can retract to the right with electrical contacts protruding from the slits 802b and 802c respectively. Alternatively, the slits 802b and 802c may be omitted, and the U-shaped positive terminal 803 and the negative terminal 804 may be configured to clamp the wall portion 802.

[0133] Therefore, the positive terminal 803 and negative terminal 804 of the battery cell 801 in this embodiment 8 can be a simpler structure than the positive terminal 603 and negative terminal 604 of the above embodiment 6 which are made of probes.

[0134] Example 9

[0135] Reference Figure 15 The electronic device of Embodiment 9 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0136] like Figure 15 As shown, in this embodiment 9, the spacer 913 constituting the battery cell 901 has an elastically deformable rubber sheet 913a attached to its left surface that abuts against the right end of the battery 10. Furthermore, the material of the sheet is not limited to rubber, as long as it is elastically deformable.

[0137] Therefore, in this embodiment 9, when the battery 10 and the spacer 913 are clamped between the walls 100b and 100c of the battery holder 100, the rubber sheet 913a of the spacer 913, which abuts against the right end of the battery 10, undergoes elastic deformation. Thus, regardless of the dimensional errors of the battery holder 100, the battery 10, and the spacer 913, the battery holder 100 can reliably clamp the battery 10 and the spacer 913, suppressing any shaking of the battery 10 and the spacer 913.

[0138] Alternatively, the rubber sheet 913a may be provided only on the right surface of the spacer 913, or it may be provided on both the left and right sides of the spacer 913. Furthermore, the spacer 913 and the rubber sheet 913a may be separate components.

[0139] Example 10

[0140] Reference Figure 16 The electronic device of Embodiment 10 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0141] like Figure 16 As shown, in this embodiment 10, the spacer 1013 constituting the battery cell 1001 has the right end of a compression coil spring 1013a fixed on its left surface opposite the right end of the battery 10.

[0142] Therefore, in this embodiment 10, with the battery 10 and the spacer 1013 clamped between the walls 100b and 100c of the battery holder 100, the compression coil spring 1013a of the spacer 1013 can be elastically pressed against the right end of the battery 10. That is, the left end of the battery 10 and the right surface of the spacer 1013 are pressed against the walls 100b and 100c of the battery holder 100 by the force of the compression coil spring 1013a. Therefore, regardless of the dimensional errors of the battery holder 100, the battery 10, and the spacer 1013, the battery 10 and the spacer 1013 can be reliably clamped by the battery holder 100, and the shaking of the battery 10 and the spacer 1013 can be suppressed.

[0143] Alternatively, the compression coil spring 1013a may be provided only on the right surface of the spacer 1013, or it may be provided on both the left and right surfaces of the spacer 1013. Furthermore, the spacer 1013 and the compression coil spring 1013a may be separate components.

[0144] Example 11

[0145] Reference Figure 17 The electronic device of Embodiment 11 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0146] like Figure 17 As shown, in this embodiment 11, a thin leaf spring 1113a is fixed on the left surface of the spacer 1113 constituting the battery cell 1101, which is opposite to the right end of the battery 10.

[0147] Therefore, in this embodiment 11, with the battery 10 and the spacer 1113 clamped between the walls 100b and 100c of the battery holder 100, the leaf spring 1113a of the spacer 1113 can be elastically pressed against the right end of the battery 10. That is, the left end of the battery 10 and the right surface of the spacer 1113 are pressed against the walls 100b and 100c of the battery holder 100 by the force of the leaf spring 1113a. Therefore, regardless of the dimensional errors of the battery holder 100, the battery 10, and the spacer 1113, the battery 10 and the spacer 1113 can be reliably clamped by the battery holder 100, and the shaking of the battery 10 and the spacer 1113 can be suppressed.

[0148] Alternatively, the leaf spring 1113a may be provided only on the right surface of the spacer 1113, or it may be provided on both the left and right surfaces of the spacer 1113. Furthermore, the spacer 1113 and the leaf spring 1113a may be separate components.

[0149] Example 12

[0150] Reference Figure 18 The electronic device of Embodiment 12 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0151] like Figure 18 As shown, in this embodiment 12, the spacer 1213 constituting the battery cell 1201 has a plunger 1213a with an elastic force-applying function exposed on its left surface opposite the right end of the battery 10. In addition, the plunger 1213a of this embodiment 12 has a built-in spring (not shown), and the ball at the front end is force-applied to the left.

[0152] Therefore, in this embodiment 12, with the battery 10 and the spacer 1213 clamped between the walls 100b and 100c of the battery holder 100, the front end of the plunger 1213a of the spacer 1213 can be elastically pressed against the right end of the battery 10. That is, the left end of the battery 10 and the right surface of the spacer 1213 are pressed against the walls 100b and 100c of the battery holder 100 by the force of the plunger 1213a. Therefore, regardless of the dimensional errors of the battery holder 100, the battery 10, and the spacer 1213, the battery 10 and the spacer 1213 can be reliably clamped by the battery holder 100, and the shaking of the battery 10 and the spacer 1213 can be suppressed.

[0153] Alternatively, the plunger 1213a may be provided only on the right surface of the spacer 1213, or it may be provided on both the left and right surfaces of the spacer 1213. Furthermore, the spacer 1213 and the plunger 1213a may be separate components.

[0154] Example 13

[0155] Reference Figure 19 The electronic device of Embodiment 13 will be described. Furthermore, for structures identical to those in Embodiment 3 described above, repeated structural descriptions will be omitted.

[0156] like Figure 18 As shown, the battery cell 1301 of this embodiment 12 has the same battery holder 100, two AA batteries 310, and spacer 1313 as in embodiments 1 and 2 above. A series connection terminal 1314 is provided on the left surface of the spacer 1313 that abuts against the AA batteries 310.

[0157] The series connection terminal 1314 has two terminals 1314b and 1314c arranged on the series connection circuit board 1314a. Terminals 1314b and 1314c are so-called probes, having force-applying units (not shown). The electrical contacts of terminals 1314b and 1314c are capable of axial extension and retraction, and are subjected to force in the extending direction. Furthermore, the series connection circuit board 1314a is fixed to the left surface of the spacer 1313 by a fixing screw 1314d. Alternatively, the spacer 1313 and the series connection terminal 1314 can be separate components.

[0158] Therefore, in this embodiment 12, with two AA batteries 310 and the spacer 1313 clamped between the walls 100b and 100c of the battery holder 100, the electrical contacts of terminals 1314b and 1314c of the series connection terminals 1314 of the spacer 1313 can be elastically pressed against the right ends of the two AA batteries 310. That is, the left ends of the two AA batteries 310 and the right surface of the spacer 1313 are pressed against the walls 100b and 100c of the battery holder 100 by the force of terminals 1314b and 1314c. Therefore, regardless of the dimensional errors of the battery holder 100, the battery 10, and the spacer 1313, the battery holder 100 can reliably clamp the battery 10 and the spacer 1213, and can suppress the shaking of the battery 10 and the spacer 1313. In addition, the pressure sensor 1 can use batteries of different shapes.

[0159] In addition, the terminals 1314b and 1314c of the series connection terminal 1314 of the spacer 1313 are not limited to probes, as long as they have force, for example, they can be made of spring terminals using compression coil springs or thin leaf springs.

[0160] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the specific structure is not limited to these embodiments. Even if there are changes or additions that do not depart from the spirit of the present invention, they are also included in the present invention.

[0161] For example, the electronic device of the present invention is not limited to pressure sensors; it can be any electronic device powered by a battery, and can also be applied to other sensors or electronic devices other than sensors.

[0162] Alternatively, the battery cell can be constructed by holding the aforementioned battery pack type lithium battery, button type battery, and batteries other than AA batteries (such as AAA batteries, square batteries, coin-shaped batteries) with a battery holder and spacers corresponding to the shape of these batteries.

[0163] In addition, the control chip and wireless chip that make up the circuit unit can be placed at any position on the circuit board.

[0164] Furthermore, in the above embodiments, it was described that either the positive or negative terminal of the pressure sensor or the positive or negative terminal of the battery cell is configured to be retractable. However, it is not limited to this, and it is also possible that both the positive and negative terminals of the pressure sensor and the positive and negative terminals of the battery cell are configured to be retractable.

[0165] Alternatively, by applying a probe or spring terminal structure to the positive terminal 215a and negative terminal 215b of the base component 215 constituting the spacer 213 in the above embodiment 2, the electrical contacts of the positive and negative terminals can be made to protrude from the cutouts provided in the wall portion 100b of the battery holder 100.

[0166] Alternatively, the battery holders 600, 700, and 800 of the above embodiments 6 to 8 can also be applied to the structure of battery cells that use batteries other than battery pack-type lithium batteries, such as those in embodiments 2 and 3.

[0167] Alternatively, the structures of spacers 913, 1013, 1113, and 1213 in embodiments 9 to 12 can be applied to the structures of battery cells in embodiments 1 to 8.

[0168] Label Explanation

[0169] 1: Pressure sensor (electronic device); 10: Battery pack type lithium battery (battery); 10a: Positive electrode (positive terminal of battery cell); 10b: Negative electrode (negative terminal of battery cell); 13: Spacer; 20: Housing; 21: Mounting component; 22: Cover component; 23: Cap component; 30: Sensor unit; 40: Circuit unit; 41: Circuit board; 42: Positive terminal (positive terminal of electronic device); 43: Negative terminal (negative terminal of electronic device); 44: Processing chip; 45: Circuit board; 46: Wireless chip; 100: Battery holder; 100b, 100c: Wall; 100d: Handle; 100e: Claw; 100g: Groove; 100h: Recess; 100k, 100m: Slit-like space; 10 1: Battery cell; 121: Outer casing; 122: Inner casing; 122b, 122c: Through hole; 122d: First plate; 122e: Second plate; 122m: Raised section; 122n: Raised section; 201: Battery cell; 210: Button cell; 213: Spacer; 214: Holder; 215: Base component; 215a: Positive terminal (positive terminal of battery cell); 215b: Negative terminal (negative terminal of battery cell); 215d, 215e: Erecting part; 301: Battery cell; 310: AA cell; 310a: Positive electrode (positive terminal of battery cell); 310b: Negative electrode (negative terminal of battery cell); 313: Spacer; 314: Terminal for series connection; G: Guide part; P: Positioning mechanism.

Claims

1. A battery cell housed in an electronic device, wherein, In the battery cell, a positive terminal and a negative terminal are arranged on one end side. The battery cell includes: a battery holder for holding any one of a first battery and a second battery of different shapes; and a spacer defining the position of the first battery or the second battery held by the battery holder. The spacer is either the first spacer for the first battery or the second spacer for the second battery. The second spacer holds the second battery and has a positive terminal and a negative terminal electrically connected to the positive terminal and the negative terminal of the second battery, respectively. The battery holder has a wall at one end that exposes the positive and negative terminals of the battery cell, which abuts against and supports the first battery or the second spacer. When the first battery and the first spacer are held in the battery holder, the positive and negative terminals of the battery cell are the positive and negative terminals of the first battery; when the second battery and the second spacer are held in the battery holder, the positive and negative terminals of the battery cell are the positive and negative terminals of the second spacer.

2. The battery cell according to claim 1, wherein, The wall portion is located between the positive and negative terminals of the battery cell.

3. The battery cell according to claim 1 or 2, wherein, The battery holder has claws for clamping the first battery and the first spacer or for clamping and holding the second spacer holding the second battery.

4. The battery cell according to claim 1 or 2, wherein, The first battery is a battery pack type lithium battery or a dry cell battery.

5. The battery cell according to claim 1 or 2, wherein, The second battery is a button cell battery. The second spacer has a base component. The base component is provided with a holder for holding the button battery and the positive and negative terminals of the second spacer electrically connected to the button battery.

6. An electronic device comprising a battery cell according to any one of claims 1 to 5 and a housing for receiving the battery cell, wherein, The electronic device is equipped with positive and negative terminals arranged in a specific configuration. The positive and negative terminals of the electronic device are configured to be retractable, along with at least one of the positive and negative terminals of the battery cell.

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