Biometric information recording device
The integrated connector and housing design in biometric devices addresses the challenge of part count and assembly complexity, achieving reduced parts and time while ensuring waterproofing and miniaturization.
Patent Information
- Application Number
- JP2020219087
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2020-12-28
- Publication Date
- 2025-01-08
- Estimated Expiration
- 2040-12-28
AI Technical Summary
Biometric information recording devices, such as Holter electrocardiogram devices, face challenges in reducing the number of parts and assembly man-hours due to the separate manufacturing of connectors and housings, which complicates waterproofing and increases part count.
A biological information recording device design that integrates the connector pins with the housing, using a protrusion and adhesive application through specific holes and notches in the flexible cable to bond the housing and wiring board, reducing the need for separate components and assembly steps.
This integration reduces the number of parts and assembly time, enhances waterproofing, and allows for device miniaturization by eliminating the need for a separate connector assembly area.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a biological information recording device that measures and records biological information. [Background technology]
[0002] In order to grasp the health condition of a living body such as a human being, there are known biological information recording devices that measure and record biological information of the living body, such as a Holter electrocardiogram recording device (Patent Document 1). The Holter electrocardiogram recording device is a device that attaches electrodes to the skin of a subject and measures and records the subject's electrocardiogram waveform with the electrodes, and is capable of measuring and recording electrocardiogram waveforms for a long period of time (for example, 24 hours). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-122092 Summary of the Invention [Problem to be solved by the invention]
[0004] The above-mentioned Holter electrocardiogram recording device and other bioinformation recording devices are required to be compact and waterproof for long-term measurement and recording. However, when the connector of the bioinformation recording device to which the measurement probe (e.g., electrode) is connected is made compact, it becomes difficult to waterproof the connector pin. For this reason, the connector is made as a separate part from the housing of the bioinformation recording device, and the connector and the housing are joined after the connector is made. As a result, the number of parts of the bioinformation recording device increases, and the number of assembly steps also increases.
[0005] An object of the present invention is to provide a biometric information recording device that can reduce the number of parts and the number of work steps. [Means for solving the problem]
[0006] The biometric information recording device according to the present invention comprises: A biological information recording device for measuring and recording biological information, A conductive pin penetrating a side surface of a housing of the biometric information recording device; a protrusion protruding from an inner surface of the side surface toward the inside of the housing and surrounding the conductor pin; a wiring board that covers the protruding portion and is connected to the conductive pin; a first hole through which an adhesive can be injected from above into a space formed by the protrusion and the wiring board with an outer surface of the side surface facing downward; a second hole capable of discharging air in the space upward when the adhesive is injected; Equipped with The housing and the wiring board are bonded together by the adhesive that is filled in the space. . Effect of the Invention
[0007] According to the present invention, the number of parts and the number of work steps of the biometric information recording device can be reduced. [Brief description of the drawings]
[0008] [Figure 1] 1 is a perspective view showing the inside of an example of a biometric information recording device according to an embodiment of the present invention. [Diagram 2] 2 is a perspective view showing the inside of the bio-information recording device shown in FIG. 1 with a flexible cable removed. [Diagram 3] 2 is a top view showing a flexible cable of the biological information recording device shown in FIG. 1. [Figure 4] FIG. 2 is a cross-sectional view taken along line AA in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[0010] [Biometric information recording device] Fig. 1 is a perspective view showing the inside of a bio-information recording device 100 according to the present embodiment. Fig. 2 is a perspective view showing the inside of the bio-information recording device 100 shown in Fig. 1 with a flexible cable 30 removed.
[0011] In order to show the main part of the present embodiment, a cover that seals the housing 10 of the bio-information recording device 100 and electronic devices disposed inside the housing 10 are omitted in FIGS.
[0012] The bioinformation recording device 100 is a device that measures and records bioinformation, for example, a Holter electrocardiogram recording device. The bioinformation recording device 100 has a housing 10 that houses an electronic device, a connector section 20 that connects a probe such as an electrode (not shown), and a planar flexible cable 30 (wiring board) that connects the electronic device and the connector section 20 inside the housing 10. The electronic device has a control device that measures and records bioinformation, a recording device, a battery, etc.
[0013] The housing 10 is formed in a box shape with an opening 11 on one side. The opening 11 can be sealed with a lid (not shown) to make the inside of the housing 10 watertight. The lid has a display device for displaying biometric information, etc.
[0014] A connector section 20 to which a probe for measuring bioinformation is connected is formed on one side surface (for convenience, referred to as the bottom surface) 12 of the housing 10. The connector section 20 has a connector section housing 20a, which is formed integrally with the housing 10 and constitutes a part of the bottom surface 12. When the bioinformation recording device 100 is a Holter electrocardiogram recording device, the probe is an electrode that measures an electrocardiogram waveform.
[0015] The connector housing 20a is formed in a convex shape from the bottom surface 12 of the housing 10 toward the inside. When viewed from the outside of the housing 10, the connector housing 20a has a recess formed in a concave shape, and is configured so that the connector part on the probe side is connected to the connector part 20 of the housing 10 by inserting the connector part on the probe side into the recess. A seal member (not shown) such as a packing is provided in the connector part on the probe side or the recess on the housing 10 side, thereby enabling the connector part on the probe side and the connector part 20 of the housing 10 to be connected in a watertight state.
[0016] A plurality of connector pins 22 (conductor pins) are arranged on an inner surface (called the connector inner surface) 21 of the connector housing 20a, and the connector pins 22 are provided penetrating the connector inner surface 21 that constitutes part of the bottom surface 12. That is, the inner end 22a of the connector pin 22 is exposed to the inside of the housing 10, and the outer end is connectable to a connector pin of the connector part on the probe side.
[0017] Protrusions 23a and 23b protruding from the connector inner surface 21 to the inside of the housing 10 are provided on the connector inner surface 21 so as to surround the periphery of the connector pins 22 arranged in this manner.
[0018] In this embodiment, a locking mechanism 24 for locking the connector part on the probe side is provided in the center of connector part inner surface 21, and the connector pins are divided into a group of four connector pins 22 and a group of six connector pins 22 on either side of locking mechanism 24. Side surface 24a and protrusion 23a of locking mechanism 24 surround the group of four connector pins 22, and side surface 24a and protrusion 23b surround the group of six connector pins 22.
[0019] In the case where the lock mechanism 24 is not provided, all ten connector pins 22 may be surrounded by the protrusions 23a and 23b.
[0020] A flexible cable 30 is disposed so as to cover the protrusions 23a and 23b thus formed, and is connected to the connector pin 22. By covering the protrusions 23a and 23b with the flexible cable 30, a space S shown in Fig. 4 described later is formed.
[0021] Here, the flexible cable 30 and the space S formed by the flexible cable 30 will be described with reference to Fig. 3 and Fig. 4. Fig. 3 is a top view showing the flexible cable 30 of the bio-information recording device 100 shown in Fig. 1. Fig. 4 is a cross-sectional view taken along line AA in Fig. 1. Note that Fig. 4 shows a group of four connector pins 22, but a group of six connector pins 22 has the same structure.
[0022] The flexible cable 30 is a flexible and deformable wiring board, and can be an FFC (Flexible Flat Cable), an FPC (Flexible Printed Circuits), etc. An FFC or an FPC is a substrate made of a thin, soft, insulating base film (such as polyimide) and a conductive metal such as copper foil, on which wiring and electric circuits are formed, and is extremely thin and can be bent freely.
[0023] In the present embodiment, the flexible cable 30 has a base film 31, and an electric circuit (or wiring) (not shown) is formed on the base film 31. In the flexible cable 30, a covering portion 31a of the base film 31 covers the protruding portion 23a and the protruding portion 23b.
[0024] Further, a plurality of insertion holes 32 for inserting the inner ends 22a of the connector pins 22 are formed in the covering portion 31a of the base film 31. Around each of the insertion holes 32, an electric circuit is formed for electrical connection with the corresponding inner ends 22a.
[0025] Moreover, a notch 33a is formed on the outer side (corresponding to the first end side) of the cover portion 31a on the group side of the four connector pins 22. Moreover, a notch 34a (second hole) is formed on the inner side (corresponding to the second end side opposite to the first end side) of the cover portion 31a.
[0026] 1 and 4, in cutout 33a, an opening (first hole) formed between cutout 33a and protruding portion 23a functions as an injection hole through which adhesive can be injected from above into space S when the outer surface of bottom surface 12 is facing downward. Cutout 34a functions as a discharge hole or outflow hole, enabling air in space S to be discharged upward when adhesive is injected into space S, and enabling adhesive to flow out upward when the injected adhesive fills space S. It is desirable that the size (opening area) of the opening of cutout 33a functioning as the injection hole be larger than cutout 34a functioning as the outflow hole or outflow hole.
[0027] Similarly, a through hole 33b (first hole) is formed on the outer side (corresponding to the first end side) of the cover portion 31a on the group side of the six connector pins 22. Also, a notch 34b (second hole) is formed on the inner side (the second end side opposite to the first end side) of the cover portion 31a.
[0028] When the outer surface of the bottom surface 12 faces downward, the through hole 33b also functions as an injection hole that can inject adhesive into the space S from above. The cutout portion 34b also functions as a discharge hole or an outflow hole, capable of discharging air from the space S upward when adhesive is injected into the space S, and capable of causing the adhesive to flow out upward when the injected adhesive fills the space S. It is desirable that the size (opening area) of the through hole 33b functioning as the injection hole is larger than the cutout portion 34b functioning as the outflow hole or the outflow hole.
[0029] As described above, by providing the cutout 33a and through-hole 33b functioning as injection holes on the upper and outer surface of the covering portion 31a, it becomes possible to easily inject adhesive into the space S. In this embodiment, when the outer surface of the bottom surface 12 of the housing 10 faces downward (the bottom side), a worker assembling the bio-information recording device 100 can access the cutout 33a and through-hole 33b from above the flexible cable 30, making the bonding operation easier.
[0030] In this embodiment, as described above, the lock mechanism 24 is provided in the central portion of the connector inner surface 21, and therefore, corresponding to this, an insertion hole 35 is formed for inserting the lock mechanism 24. The cutouts 34a and 34b and the insertion hole 35 are formed to be an integrated hole.
[0031] In the present embodiment, a through hole 36a (third hole) is formed between the notch 33a and the notch 34a. Similarly, a through hole 36b (third hole) is formed between the through hole 33b and the notch 34b. The through holes 36a and 36b can also discharge air in the space S upward when the adhesive is injected into the space S, and can also cause the adhesive to flow upward when the injected adhesive fills the space S, and thus function as a discharge hole or an outflow hole. The through holes 36a and 36b functioning as a discharge hole or an outflow hole are desirably smaller in size (opening area) than the notch 33a and the through hole 33b functioning as an injection hole, similar to the notches 34a and 34b.
[0032] The through hole 36a is arranged along the direction from the notch 34a to the notch 34a. That is, the through hole 36a and the notch 34a are provided along the outside to the inside (from the first end to the second end) of the cover 31a. Furthermore, a plurality of through holes 36b are arranged along the direction from the through hole 33b to the notch 34b. That is, the through hole 36b and the notch 34b are also provided along the outside to the inside (from the first end to the second end) of the cover 31a. By arranging the through holes 36a, 36b and the notches 34a, 34b in this manner, the air in the space S can be easily discharged, and the space S can be filled with the injected adhesive.
[0033] In this embodiment, when the outer surface of the bottom surface 12 of the housing 10 is facing downward (bottom side), a worker assembling the biometric information recording device 100 can visually observe the through holes 36a, 36b and the cutout portions 34a, 34b from above the flexible cable 30.
[0034] When adhesive is injected into space S from notch 33a and through hole 33b, which function as injection holes, air escapes from through holes 36a, 36b and notches 34a, 34b, which function as discharge holes or outflow holes, as described above. Then, when the adhesive fills space S, the adhesive flows out from through holes 36a, 36b and notches 34a, 34b, making it possible to confirm (visually confirm) that space S is filled with adhesive.
[0035] In this case, the visibility of the adhesive is improved if the color of the adhesive is different from the color of the base film 31 and / or the color of the connector housing 20a. Different colors means that at least one of the three attributes of color, namely, hue, saturation, and brightness, is different. In addition, it is preferable that the base film 31 is transparent or highly transparent, and if the color of the adhesive is, for example, black, the filling state of the adhesive can be confirmed through the base film 31.
[0036] The adhesive may be one that changes color between when injected and after curing. When such an adhesive is injected by an operator, it is preferable to use an adhesive that has a different color from the base film 31 and / or the connector housing 20a when injected, for the operator's visibility when injecting. When such an adhesive is injected automatically by a device or the like, it is preferable to use an adhesive that has a different color from the base film 31 and / or the connector housing 20a when cured, for the operator's visibility after curing.
[0037] In conventional biometric information recording devices, the connector was made as a separate part from the housing. This resulted in a large number of parts and a large number of man-hours. In contrast, in the biometric information recording device 100, the housing 10 and the connector part 20 are not made as separate parts, so the number of parts and the man-hours can be reduced.
[0038] In addition, in the conventional biometric information recording device, the connector is manufactured as a separate part from the housing, and the connector and the housing are joined after the manufacturing. Therefore, a region for joining the connector and the housing is required, and this region is an obstacle to miniaturization. In contrast, in the biometric information recording device 100, the housing 10 and the connector part 20 are not manufactured as separate parts, so the region for joining them is not required, and the device can be further miniaturized.
[0039] In this embodiment, the opening of the cutout 33a is formed between the cover 31a and the protruding portion 23a, but it may be provided in the flexible cable 30, similar to the through hole 33b. Also, the through hole 33b is provided in the flexible cable 30, but it may be formed between the cover 31a and the protruding portion 23b, similar to the opening of the cutout 33a. Also, when the opening is formed between the cover 31a and the protruding portion 23a, the cutout 33a may not be provided, and a part of the protruding portion 23a may be disposed outside the cover 31a to form an opening communicating with the space S.
[0040] Also, the opening of cutout 33a and through hole 33b may be formed to a size that allows an adhesive nozzle to be inserted, and the adhesive nozzle may be inserted into the opening of cutout 33a and through hole 33b to inject the adhesive. Also, an insertion nozzle may be provided on the cutout 33a / through hole 33b side, and the adhesive nozzle may be inserted into the insertion nozzle to inject the adhesive.
[0041] [Method of assembling the connector part of the biometric information recording device] A method of assembling the connector section 20 of the bio-information recording device 100 will be described with reference to FIGS.
[0042] First, the housing 10 and the connector housing 20a (including the protrusions 23a, 23b, etc.) are integrally formed, and then the connector pins 22 are attached by penetrating through the connector inner surface 21. That is, the state shown in FIG.
[0043] Next, the connector pin 22 is inserted into the insertion hole 32 of the flexible cable 30 shown in FIG. 3, and the lock mechanism 24 is inserted into the insertion hole 35, and the protrusions 23a and 23b are covered with the cover portion 31a.
[0044] Next, adhesive is injected into the space S from the cutout 33a, and the injection of adhesive is stopped when the adhesive flows out from the through hole 36a and the cutout 34a. Similarly, adhesive is injected into the space S from the through hole 33b, and the injection of adhesive is stopped when the adhesive flows out from the through hole 36b and the cutout 34b.
[0045] The adhesive filled in the space S in this manner adheres the flexible cable 30 to the connector portion 20 and also prevents water from entering the inside of the housing 10 from the outside, i.e., makes the inside of the housing 10 watertight.
[0046] It should be noted that the above-mentioned embodiments are merely examples of the implementation of the present invention, and the technical scope of the present invention should not be interpreted as being limited by these embodiments. In other words, the present invention can be implemented in various forms without departing from the gist or main characteristics of the present invention.
[0047] For example, in this embodiment, a Holter electrocardiogram recording device is exemplified as the biological information recording device 100, but the present invention is also applicable to devices other than a Holter electrocardiogram recording device. [Explanation of symbols]
[0048] 10. Chassis 11 Opening 12 Bottom 20 Connector part 20a Connector housing 21 Connector inner surface 22 connector pins 22a Inner edge 23a, 23b protrusion 24 Locking mechanism 24a side 30 Flexible Cable 31 Base Film 31a Cover part 32, 35 Insertion holes 33a Notch 33b Through hole 34a, 34b Notch 36a, 36b through hole 100 Biometric information recording device
Claims
1. A biological information recording device for measuring and recording biological information, A conductive pin penetrating a side surface of a housing of the biometric information recording device; a protrusion protruding from an inner surface of the side surface toward the inside of the housing and surrounding the conductor pin; a wiring board that covers the protruding portion and is connected to the conductive pin; a first hole through which an adhesive can be injected from above into a space formed by the protrusion and the wiring board with an outer surface of the side surface facing downward; a second hole capable of discharging air in the space upward when the adhesive is injected; Equipped with the housing and the wiring board are bonded together by the adhesive filled in the space; Biometric information recording device.
2. the first hole is formed in the wiring substrate or between the protruding portion and the wiring substrate; The second hole is formed in the wiring substrate or between the protruding portion and the wiring substrate. The biological information recording device according to claim 1 .
3. The first hole is formed on a first end side of the wiring substrate, The second hole is formed on a second end side of the wiring board opposite to the first end side.
3. The biological information recording device according to claim 1 or 2.
4. a third hole is provided between the first hole and the second hole, through which air in the space can be discharged upward when the adhesive is injected; The biological information recording device according to claim 3.
5. The third hole is provided in plurality, The third holes are arranged along a direction from the first hole to the second hole. The biological information recording device according to claim 4.
6. The third hole is smaller in size than the first hole.
6. The biological information recording device according to claim 4 or 5.
7. The size of the first hole is larger than the size of the second hole. The biological information recording device according to claim 1 .
8. the adhesive has a color different from that of at least one of the wiring board and the housing when the adhesive is injected; The biological information recording device according to claim 1 .
9. the adhesive has a color different from that of at least one of the wiring board and the housing after the adhesive is hardened; The biological information recording device according to claim 1 .
Citation Information
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