Electronic device

Abstract

Provided is an electronic device capable of accurately connecting electrode terminals. An electronic device (1) capable of plugging and unplugging a battery holder (100) holding a battery (10) with respect to a housing (20), wherein a positive electrode (10a) and a negative electrode (10b) of the battery (10) are arranged, a positive electrode terminal (42) and a negative electrode terminal (43) of the electronic device (1) are arranged, a groove (100g) extending in a plugging and unplugging direction is formed in the housing (20), a protrusion (122m) extending in the plugging and unplugging direction is formed in the battery holder (100), and a guide portion (G) is constituted by the groove (100g) and the protrusion (122m).

Description

Technical Field

[0001] This invention relates to electronic devices that use batteries as their power source. 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] Furthermore, the battery holder has the following longitudinal dimension: with one end of the support substrate in contact with the bottom of the housing, the other end of the support substrate protrudes from the opening of the housing. The opening of the housing is closed by a cover with locking claws. A slit-like recess is formed on the inner surface of the cover, and the battery holder is supported by the other end of the support substrate contacting the bottom of the recess, thus maintaining electrical connection.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2019-153485 (pages 8-9) Figure 6 ) Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] However, in the sensor device of Patent Document 1, the battery holder is constructed such that it is inserted while the two ends of the support substrate in the width direction are slidingly contacted with the inner wall of the insertion portion of the housing until one end of the support substrate in the length direction contacts the bottom of the housing. Therefore, if the support substrate is inserted into the insertion portion of the housing in a state inclined in the thickness direction, misalignment may occur between the terminals of the sensor element and the connector of the battery holder, resulting in poor connection.

[0010] This invention was made with regard to such a problem in mind, and its purpose is to provide an electronic device capable of accurately connecting electrode terminals.

[0011] Methods for solving problems

[0012] To address the aforementioned issues, the electronic device of the present invention allows for the insertion and removal of a battery holder relative to a housing, the battery holder holding the battery, wherein the positive and negative terminals on the battery holder side are arranged in a specific configuration, and either a groove extending in the insertion / removal direction or a protrusion extending in the insertion / removal direction is formed in the housing and the battery holder, the groove and the protrusion constituting a guide portion.

[0013] Therefore, the tilting of the battery holder relative to the housing during insertion and removal can be suppressed by utilizing the guide portion composed of grooves and protrusions extending along the insertion and removal direction of the battery holder. Thus, the electrode terminals can be accurately connected to the electronic device.

[0014] Alternatively, the guide portion may be positioned opposite each other.

[0015] Therefore, the guides are located at two opposing positions, which further suppresses the tilting of the battery holder inserted into the housing.

[0016] Alternatively, the housing may have an outer shell and an inner shell, with the inner shell disposed inside the outer shell and having the guide portion provided therein, and the circuit board of the electronic device fixed on the outer surface of the inner shell.

[0017] Therefore, the inner shell can protect the circuit board, preventing it from being directly affected by external impacts from the outer shell or the insertion and removal of the battery holder.

[0018] Alternatively, the inner shell may have a through hole extending along the insertion / removal direction of the battery holder, through which the positive and negative terminals of the electronic device protrude.

[0019] Therefore, by having the battery holder abut against the inner casing, it is possible to prevent the positive and negative terminals on the battery holder side from being pressed against the positive and negative terminals of the electronic device with excessive force.

[0020] Alternatively, a positioning mechanism may be provided between the inner shell and the battery holder, which specifies the insertion progress of the battery holder.

[0021] Therefore, the positive and negative terminals on the battery holder side can be brought into contact with the positive and negative terminals of the electronic device with appropriate force.

[0022] Alternatively, the positioning mechanism can be performed by the interlocking of the recesses and protrusions between the inner shell and the battery holder.

[0023] Therefore, the battery holder can be locked by the interlocking of the recess and the convex portion when the positive and negative terminals of the battery held by the battery holder are in contact with the positive and negative terminals of the electronic device.

[0024] Alternatively, the battery holder may be provided with a handle.

[0025] Therefore, when removing the battery holder, the battery holder can be easily pulled out of the electronic device by using the handle.

[0026] Alternatively, the housing may have an outer shell and an inner shell, with the inner shell disposed within the outer shell and having the guide portion thereon. The electronic device may also have a gap adjustment component that limits the gap between the inner shell and the outer shell.

[0027] This adjusts the gap between the inner and outer shells, so that the battery holder and inner shell are less likely to wobble relative to the outer shell when assembled.

[0028] Furthermore, the gap adjustment component, for example, is made of an elastic member, which provides better wobbling suppression when pressed against the gap between the inner and outer shells. Additionally, when the gap adjustment component is positioned rearward of the inner shell in the insertion direction, it facilitates easy insertion and removal of the inner shell relative to the outer shell. Attached Figure Description

[0029] Figure 1 This is a perspective view of a pressure sensor according to Embodiment 1 of the present invention.

[0030] Figure 2 This is an exploded perspective view showing the construction of the pressure sensor of Embodiment 1.

[0031] Figure 3 This is a cross-sectional view showing the construction of the pressure sensor in Embodiment 1.

[0032] Figure 4 This is a perspective view showing the structure of the inner casing and battery holder. Additionally, for ease of explanation, Figure 4 The image shows the state after the outer casing has been removed.

[0033] 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.

[0034] Figure 6 It is along Figure 3 A cross-sectional view along line AA.

[0035] Figure 7 This is an exploded perspective view showing the structure of the battery holder of Embodiment 1.

[0036] Figure 8 This is a cross-sectional view showing the structure of the pressure retainer according to Embodiment 2 of the present invention. Additionally, in Figure 8 For ease of explanation, the structure of the circuit units is omitted in the diagram.

[0037] Figure 9 This is a cross-sectional view showing the structure of the pressure retainer according to Embodiment 3 of the present invention. Additionally, in Figure 9 For ease of explanation, the structure of the circuit units is omitted in the diagram.

[0038] Figure 10 This is a cross-sectional view showing the structure of the pressure retainer according to Embodiment 4 of the present invention. Additionally, in Figure 10 For ease of explanation, the structure of the circuit units is omitted in the diagram.

[0039] Figure 11 This is a cross-sectional schematic diagram showing the guide portion of Embodiments 1 to 4 and the guide portion of the modified embodiment.

[0040] Figure 12 This is a cross-sectional schematic diagram showing the positioning mechanism of Embodiments 1 to 4 and the positioning mechanism of the modified embodiment. Detailed Implementation

[0041] Hereinafter, embodiments of an electronic device for implementing the present invention will be described.

[0042] Example 1

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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 3As 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.

[0055] 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.

[0056] 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.

[0057] The cap component 23 has a circular plate-shaped 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 Additionally, 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. Furthermore, 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 seal. In this way, the internal space of the housing 121, which houses the circuit unit 40 and the battery holder 100, is divided into a substantially sealed shape.

[0058] 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.

[0059] 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.

[0060] As described above, through holes 122b and 122c are arranged and formed on the base 122a. Additionally, as... Figure 3 As 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 ).

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] Additionally, on the inner surface of the second plate portion 122e, at the right end (in Figure 4 The middle part (left end) has a pair of hemispherical protrusions 122n.

[0066] 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.

[0067] 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") will be described, wherein the battery pack type lithium battery 10 has a positive electrode 10a and a negative electrode 10b arranged on one end of the battery holder 100 along its length. Furthermore, in this embodiment 1, the positive and negative terminals on the battery holder 100 side are the positive electrode 10a and the negative electrode 10b of the battery 10.

[0068] 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.

[0069] like Figure 2 As shown, the wall portion 100b is approximately triangular in shape, and when the battery 10 is 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 the negative electrode 10b of the battery 10 pass through 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 so as to be able to 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.

[0070] 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 upper and lower pairs of the battery 10.

[0071] In addition, such as Figure 6 As shown, the upper and lower approximate central portions of the outer surface of the base 100a form a flat surface, creating an insertion recess 100f. The insertion recess 100f is located on the left side where the wall portion 100b is formed (on...). 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.

[0072] Additionally, at the left end of the bottom surface 100r 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 ).

[0073] Therefore, the guide portion G, which is composed of grooves and protrusions extending along the insertion / removal direction of the battery holder 100 (i.e., the recessed groove 100g of the battery holder 100 and the protruding portion 122m of the inner shell 122), can suppress the tilting of the battery holder 100 relative to the inner shell 122 constituting the housing 20 during insertion / removal. Thus, the positive terminal 10a and negative terminal 10b of the battery 10 held by the battery holder 100 can be accurately connected to the positive terminal 42 and negative terminal 43 of the pressure sensor 1.

[0074] Furthermore, the protruding portion 122m of the inner shell 122 is formed over the entire length of the second plate portion 122e. As a result, the guide portion G is continuously formed along the insertion and removal direction of the battery holder 100, thus reliably suppressing the tilting of the battery holder 100.

[0075] Furthermore, the recessed groove 100g constituting the guide portion G is provided in opposite positions, specifically, in opposite positions in the width direction of the battery holder 100. Thus, with the guide portion G provided in two opposite locations, tilting of the battery holder 100 inserted into the inner casing 122 can be further suppressed.

[0076] Additionally, the housing 20 includes: an outer shell 121 having a mounting member 21, a cover member 22, and a cap member 23; and an inner shell 122 disposed within the outer shell 121, on which a circuit board 45 constituting the circuit unit 40 is fixed. Therefore, the inner shell 122 can protect the circuit board 45 from direct impacts from the outside of the outer shell 121 or from the insertion and removal of the battery holder 100.

[0077] Furthermore, the inner shell 122 is provided with through holes 122b and 122c extending along the insertion / removal direction of the battery holder 100, i.e., the left-right direction. The positive terminal 42 and negative terminal 43 of the pressure sensor 1 protrude from these through holes 122b and 122c. Therefore, by having the wall portion 100b of the battery holder 100 abut against the base portion 122a of the inner shell 122 from the right, it is possible to prevent the positive terminal 10a and negative terminal 10b of the battery 10 held by the battery holder 100 from being pressed against the positive terminal 42 and negative terminal 43 of the pressure sensor 1 with excessive force.

[0078] Furthermore, a positioning mechanism P is provided between the inner shell 122 and the battery holder 100. This positioning mechanism P determines the insertion progress of the battery holder 100 through the interlocking of the recess 100h and the protrusion 122n. Therefore, the positive terminal 10a and negative terminal 10b of the battery 10 held by the battery holder 100 can be brought into contact with the positive terminal 42 and negative terminal 43 of the pressure sensor 1 with appropriate force.

[0079] Furthermore, since the battery holder 100 can be inserted and removed while the pressure sensor 1 is installed in the piping or other mounting area, battery replacement can be performed easily. 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, without removing the entire housing 20 from the piping or other mounting area. As a result, the sensor unit 30 and circuit unit 40 do not need to be touched or moved during battery replacement, thus allowing the pressure sensor 1 to reliably sense the object being measured.

[0080] 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.

[0081] 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.

[0082] Example 2

[0083] Reference Figure 8 The 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.

[0084] like Figure 8 As shown, in this embodiment 2, a gap adjustment member 227 with a generally rectangular cross-section is fixed to the outer surface of the second plate portion 122e constituting the inner shell 122. The gap adjustment member 227 is formed of resin material. Furthermore, the surface portion 227a of the gap adjustment member 227 can be pressed against the cover member 22 constituting the shell 20 (specifically, the inner peripheral surface of the outer shell 121). That is, it can also be said that the gap adjustment member 227 fills the gap between the inner periphery of the outer shell 121 and the inner shell 122. In addition, the gap adjustment member 227 is positioned to the right of the cutout portion 122s.

[0085] Furthermore, the surface portion 227a of the gap adjustment member 227 can be bent along the inner peripheral surface of the cover member 22. Also, the surface portion 227a of the gap adjustment member 227 only needs to contact the inner peripheral surface of the cover member 22, or it may not need to be pressed together. Additionally, the gap adjustment member 227 may be integrally formed with the inner shell 122.

[0086] Therefore, with the battery holder 100 installed in the inner housing 122, the gap adjustment member 227 is positioned in the gap formed between the outer surface of the second plate portion 122e constituting the inner housing 122 and the inner peripheral surface of the cover member 22, and the surface portion 227a is pressed against the inner peripheral surface of the cover member 22. Thus, the shaking of the battery holder 100 installed in the inner housing 122 can be suppressed. This ensures stable contact between the positive terminal 42 and the negative terminal 43 of the pressure sensor 1 and the positive terminal 10a and the negative terminal 10b of the battery 10 held by the battery holder 100.

[0087] Furthermore, in the battery holder 100, the front part in the insertion direction is subjected to forces from the positive terminal 10a and negative terminal 10b of the battery 10, while the rear side in the insertion direction is subjected to forces from the gap adjustment member 227. Therefore, when installed in the housing 20, the battery holder 100 is less prone to shaking. Moreover, since the gap adjustment member 227 is located at the rear in the insertion direction, it is easy to insert the battery holder 100 and the inner housing 122 into the outer housing 121.

[0088] Example 3

[0089] Reference Figure 9 The electronic device of Embodiment 3 will be described. Furthermore, for structures identical to those in Embodiment 1 described above, repeated structural descriptions will be omitted.

[0090] like Figure 9 As shown, in this embodiment 3, a gap adjustment member 327 with a right-angled triangular cross-section is fixed to the outer surface of the second plate portion 122e constituting the inner shell 122. The gap adjustment member 327 is formed of resin material. Furthermore, the corner portion 327a of the gap adjustment member 327 can be pressed against the inner peripheral surface of the cover member 22 constituting the shell 20. That is, it can also be said that the gap adjustment member 327 contacts the inner peripheral surface of the outer shell 121 through its flexure. Additionally, the gap adjustment member 327 is positioned to the right of the cutout portion 122s.

[0091] Furthermore, corner portion 327a is formed at the right end of clearance adjustment member 327. Additionally, corner portion 327a of clearance adjustment member 327 can be bent along the inner circumferential surface of cover member 22. Furthermore, corner portion 327a of clearance adjustment member 327 only needs to contact the inner circumferential surface of cover member 22, or it may not need to be pressed. Additionally, clearance adjustment member 327 may be integrally formed with inner shell 122.

[0092] Therefore, with the battery holder 100 installed in the inner housing 122, the gap adjustment member 327 is positioned in the gap formed between the outer surface of the second plate portion 122e constituting the inner housing 122 and the inner peripheral surface of the cover member 22, and the corner portion 327a is pressed against the inner peripheral surface of the cover member 22. Thus, the shaking of the battery holder 100 installed in the inner housing 122 can be suppressed. This ensures stable contact between the positive terminal 42 and the negative terminal 43 of the pressure sensor 1 and the positive terminal 10a and the negative terminal 10b of the battery 10 held by the battery holder 100.

[0093] In addition, in the battery holder 100, the front part in the insertion direction is subjected to the force from the positive terminal 10a and the negative terminal 10b of the battery 10, and the side part in the rear direction is subjected to the force from the gap adjustment member 327. Therefore, when the battery holder 100 is installed in the housing 20, it is not easy for it to shake.

[0094] In addition, by pressing the corner 327a of the gap adjustment component 327 against the inner peripheral surface of the cover component 22, the resistance caused by the sliding of the corner 327a of the gap adjustment component 327 against the inner peripheral surface of the cover component 22 is reduced, and the battery holder 100 can be smoothly inserted and removed from the inner shell 122.

[0095] Furthermore, since the corner portion 327a is formed at the right end of the gap adjustment member 327, the sliding of the corner portion 327a of the gap adjustment member 327 against the inner peripheral surface of the cover member 22 occurs within a narrow range near the opening 22a on the right side of the cover member 22. Therefore, the gap adjustment member 327 does not easily obstruct the insertion and removal of the battery holder 100 relative to the inner shell 122.

[0096] Example 4

[0097] 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.

[0098] like Figure 10 As shown, in this embodiment 4, a gap adjustment member 427, made of a leaf spring, is fixed to the outer surface of the second plate portion 122e constituting the inner shell 122. The bent portion 427a of the gap adjustment member 427 can press against the inner peripheral surface of the cover member 22 constituting the shell 20. Furthermore, the gap adjustment member 427 is positioned to the right of the cutout portion 122s. Additionally, the bent portion 427a of the gap adjustment member 427 only needs to contact the inner peripheral surface of the cover member 22, or it may not need to be pressed against it.

[0099] Therefore, with the battery holder 100 installed in the inner shell 122, the gap adjustment member 427 is positioned in the gap formed between the outer surface of the second plate portion 122e constituting the inner shell 122 and the inner peripheral surface of the cover member 22, and the buckled portion 427a of the gap adjustment member 427 is pressed against the inner peripheral surface of the cover member 22. Thus, the shaking of the battery holder 100 installed in the inner shell 122 can be suppressed. This ensures stable contact between the positive terminal 42 and the negative terminal 43 of the pressure sensor 1 and the positive terminal 10a and the negative terminal 10b of the battery 10 held by the battery holder 100.

[0100] In addition, in the battery holder 100, the front part in the insertion direction is subjected to the force from the positive terminal 10a and the negative terminal 10b of the battery 10, and the side part in the rear direction is subjected to the force from the gap adjustment member 427. Therefore, when the battery holder 100 is installed in the housing 20, it is not easy for it to shake.

[0101] In addition, by pressing the buckled portion 427a of the gap adjustment member 427 against the inner peripheral surface of the cover member 22, the resistance caused by the sliding of the buckled portion 427a of the gap adjustment member 427 against the inner peripheral surface of the cover member 22 is reduced, and the battery holder 100 can be smoothly inserted and removed from the inner shell 122.

[0102] Alternatively, the gap adjustment member 427 can also be fixed to the inner surface of the inner shell 122. In this case, it is preferable that both ends of the leaf spring are fixed to the inner surface of the inner shell 122, and the buckling portion 427a protrudes toward the inner surface of the inner shell 122.

[0103] 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.

[0104] 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.

[0105] In addition, electronic devices can also be configured to hold batteries other than the aforementioned battery pack type lithium batteries using a battery holder, such as button batteries, AA batteries, AAA batteries, prismatic batteries, and coin batteries.

[0106] Furthermore, in embodiments 1 to 4 described above, a structure was described in which the positive and negative terminals of the battery held by the battery holder are the positive and negative terminals on the battery holder side and are in direct contact with the positive and negative terminals of the pressure sensor. However, this is not a limitation. Alternatively, an electrode terminal may be provided on the wall at one end of the long side of the battery holder. This electrode terminal is electrically connected to the battery and can contact the positive and negative terminals of the pressure sensor. In addition, the positive and negative terminals on the battery holder side can be arranged vertically, and their left and right positions can also be different.

[0107] Furthermore, the raised portion and recessed groove constituting the guide portion are not limited to being formed as follows: Figure 11 The semi-circular shape shown in the cross-sectional view (a) can be any shape that allows the protruding part to be inserted into or removed from one end of the groove along the length direction and guides the sliding of the battery holder. Specifically, the shapes of the protruding part and the groove can also be, for example, rectangular as quadrilaterals (see...). Figure 11 (b)), End-extended trapezoid (refer to) Figure 11 (d)), trapezoid with narrowing ends (refer to) Figure 11 (e) and other quadrilaterals (see reference) Figure 11 (f) or triangle (refer to) Figure 11 Other shapes such as (c)).

[0108] Furthermore, the convex portion and concave groove constituting the guide portion are not limited to being formed into approximately the same shape. For example, the concave groove may be formed into a rectangle, and the convex portion may be formed into a different shape than the concave groove. Figure 11 The shape shown.

[0109] Furthermore, the shapes of the pair of convex and concave grooves constituting the guide portion are not limited to being formed in the same shape, but may also be different shapes.

[0110] Alternatively, the convex and concave relationships of the convex and concave portions constituting the guide portion can be reversed. That is, it is also possible to form concave grooves in the inner shell and convex portions in the battery holder.

[0111] Furthermore, the guide section is not limited to being provided in two locations opposite each other in the width direction; it may also be provided in one location or three or more locations.

[0112] In addition, the guide portion is not limited to a continuous convex portion in the insertion and extraction direction, but may also be composed of multiple convex portions arranged in the insertion and extraction direction.

[0113] Furthermore, the protrusions and recesses constituting the positioning mechanism are not limited to being formed as follows: Figure 12 The hemispherical shape shown in the cross-sectional view (a) can be any shape that allows for the interlocking of the convex and concave portions. Specifically, the shapes of the convex and concave portions can, for example, be triangular (see Figure 1). Figure 12 (b) or the trapezoid with narrowed ends (refer to) Figure 12 Other shapes, such as (c)). Furthermore, the shape of the protrusion constituting the positioning mechanism is preferably a curved or inclined surface that facilitates engagement with the recess when the battery holder is inserted.

[0114] Furthermore, the protrusions and recesses constituting the positioning mechanism are not limited to being formed in approximately the same shape. For example, the recesses could be formed in a rectangular shape, and the protrusions could be formed in a different shape than the recesses. Figure 12 The shape shown.

[0115] Furthermore, the shapes of the pair of protrusions and concave parts constituting the positioning mechanism are not limited to being the same shape, but can also be different shapes.

[0116] Alternatively, the convex and concave relationships of the protrusions and recesses constituting the positioning mechanism can be reversed. That is, the concave portion can be formed in the inner shell, and the convex portion in the battery holder.

[0117] In addition, the positioning mechanism is not limited to being set in two locations; it can also be set in one location or more than three locations.

[0118] In addition, the control chip and wireless chip that make up the circuit unit can be placed at any position on the circuit board.

[0119] Furthermore, in the above embodiments 2 to 4, the structure in which a clearance adjustment member is provided in the inner shell constituting the valve housing was described, but it is not limited thereto. The clearance adjustment member may also be provided on the inner circumferential surface of the cover member (outer shell) constituting the valve housing, or it may be provided on both the inner shell and the cover member.

[0120] Label Explanation

[0121] 1: Pressure sensor (electronic device); 10: Battery pack type lithium battery (battery); 10a: Positive terminal (positive terminal on the battery holder side); 10b: Negative terminal (negative terminal on the battery holder side); 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 portion; 100d: handle; 100e: claw portion; 100g: groove (groove of the guide portion); 100h: recess; 100k, 100m: cut-out space; 121: outer shell; 122: inner shell; 122b, 122c: through hole; 122d: first plate portion; 122e: second plate portion; 122m: raised portion (raised portion of the guide portion); 122n: raised portion; 227: clearance adjustment component; 327: clearance adjustment component; 427: clearance adjustment component; G: guide portion; P: positioning mechanism.

Claims

1. An electronic device having a battery holder that can be inserted and removed relative to a housing, the battery holder holding a battery, wherein... The positive and negative terminals on the battery holder side are arranged in a specific configuration. The positive and negative terminals of the electronic device are arranged in a specific configuration. The housing has an outer shell and an inner shell disposed within the outer shell. The circuit board of the electronic device is fixed on the outer surface of the inner shell. The inner shell is formed of resin material and has a base and a first plate portion and a second plate portion extending from the base along the insertion / extraction direction. On the inner surface side of each of the two opposite ends of the second plate in a direction perpendicular to the insertion / removal direction, one of a pair of protruding portions extending along the insertion / removal direction is formed. A pair of recessed grooves are formed in the battery holder. The pair of protruding strips and the pair of recessed grooves constitute a guide portion for guiding the movement of the battery holder along the insertion / removal direction.

2. The electronic device according to claim 1, wherein, The inner shell is provided with a through hole that extends along the insertion and removal direction of the battery holder, and the positive terminal and the negative terminal of the electronic device protrude from the through hole.

3. The electronic device according to claim 1 or 2, wherein, A positioning mechanism is provided between the inner shell and the battery holder, which determines the insertion progress of the battery holder.

4. The electronic device according to claim 3, wherein, The positioning mechanism is activated by the interlocking of the recesses and protrusions between the inner shell and the battery holder.

5. The electronic device according to claim 1 or 2, wherein, The battery holder is provided with a handle.

6. The electronic device according to claim 1 or 2, wherein, The electronic device is provided with a gap adjustment component that limits the gap between the inner shell and the outer shell.

7. An electronic device having a battery holder that can be inserted and removed relative to a housing, the battery holder holding a battery, wherein... The positive and negative terminals on the battery holder side are arranged in a specific configuration. The positive and negative terminals of the electronic device are arranged in a specific configuration. The housing has an outer shell and an inner shell disposed within the outer shell. The circuit board of the electronic device is fixed on the outer surface of the inner shell. The inner shell is formed of resin material and has a base and a first plate portion and a second plate portion extending from the base along the insertion / extraction direction. On the inner surface side of each of the two opposite ends of the second plate in a direction perpendicular to the insertion / removal direction, one of a pair of recessed grooves extending along the insertion / removal direction is formed. A pair of raised ribs are formed in the battery holder. The pair of recessed grooves and the pair of protruding ribs constitute a guide portion for guiding the movement of the battery holder along the insertion / removal direction.

Images