JP2008209187A - Structure for mounting temperature detection switch for battery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure for a battery temperature detection switch which enables stable temperature detection of the battery, independently of a difference in height caused by dimensional tolerance on the battery height and the inclination of a detection surface. <P>SOLUTION: A structure relating to claim 1 is a mounting structure for the temperature detection switch for detecting a surface temperature of the battery, and temperature detecting switch mounting metal hardware made of a plate in the shape of a strip of paper and having a slit formed at its tip in the longitudinal direction is attached, to a battery fixing plate which presses the top surface of the battery housed in a battery case, and moreover the temperature detection switch is swayably mounted between the two tongue pieces of the temperature detection switch mounting metal fitting formed by the slit. In the case of a structure relating to claim 2, the longitudinal dimensions of the tongue pieces are made different, and the temperature detection switch is mounted swayably between a pair of front and rear mounting flanges provided in opposition to the two tongue pieces, in the mounting structure for the temperature detection switch described in claim 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mounting structure for a temperature detection switch for detecting a surface temperature of a battery.

Conventionally, a backup battery is connected to devices installed in a digital terrestrial broadcasting base station.
In order to prevent the battery from burning out, this type of battery is conventionally equipped with a temperature detection switch for detecting the surface temperature. When the battery rises to a predetermined temperature, the temperature detection switch detects this. The power supply to the equipment is cut off.

FIGS. 9 and 10 show the temperature detection switch mounting structure, in which 1 is a battery case housed in a rack (not shown), and the battery case 1 is formed in a box shape with an open top. The battery 3 is accommodated in the battery.
The battery 3 is formed in a substantially rectangular parallelepiped shape, and a battery positioning plate 7 screwed to the bottom 5 of the battery case 1 abuts on the lower part of one side surface 9 of the battery 3 to position the battery 3 in one of the battery cases 1. is doing. Then, two battery fixing plates 13 installed between the opposing side walls 11 of the battery case 1 are pressed against the upper surface 15 of the battery 3 from above the battery 3 to fix the battery 3. Are arranged in parallel in a direction orthogonal to the battery positioning plate 7.

A temperature detection switch mounting bracket 17 is attached to the side wall 11, and a temperature detection switch 19 that is in pressure contact with the upper surface 15 of the battery 3 is mounted at the tip of the temperature detection switch mounting bracket 17.
As shown in FIGS. 11 and 12, the temperature detection switch mounting bracket 17 is formed of a thin strip-shaped plate material (spring material) in which a mounting flange 21 to the side wall 11 is formed in a substantially L-shaped cross section on one end side. The mounting flange 21 is bent at a slightly acute angle from 90 °.

  Further, the other end side of the temperature detection switch mounting bracket 17 is formed in a downward cross-sectional crank shape, and the temperature detection switch 19 is sandwiched from above by a sandwiching piece 23 having a U-shaped cross section provided at a narrow tip. Yes. When the temperature detection switch mounting bracket 17 is mounted, the temperature detection switch 19 is elastically deformed in the direction of the arrow as shown in FIG. 19 is in pressure contact with the surface (upper surface 15) of the battery 3.

However, the conventional temperature detection switch 19 mounting structure as described above has a contact pressure between the battery 3 and the temperature detection switch 19 due to the height difference due to the dimensional tolerance of the battery height or the inclination of the detection surface (upper surface 15). There is a possibility that the temperature is not constant and stable temperature detection cannot be performed.
By the way, Patent Document 1 discloses a sensor mounting tool for mounting various sensors such as a magnetic sensor and a photoelectric sensor on a mounting substrate.

The sensor fixture includes a gripping piece made up of a top piece and two side pieces bent in a substantially U-shape that touches and holds the sensor on the upper surface and both side surfaces of the sensor set on the mounting board, and the both side pieces. Inclined tips formed by substantially symmetrically bending the respective tip portions, and each of the inclined pieces is brought into pressure contact with the opening peripheral edge of the mounting hole formed in the mounting substrate. The sensor is fixed to the mounting substrate by a spring reaction force.
JP-A-8-236958

Thus, by diverting the sensor fixture to the temperature detection switch mounting structure, the temperature detection switch can be easily attached to the temperature detection switch mounting bracket, but the height difference due to the dimensional tolerance of the battery height It is impossible to eliminate the above-described problems caused by the inclination of the detection surface.
When the height difference due to the dimensional tolerance of the battery height or the inclination of the detection surface becomes larger than a certain level, there is a possibility that a gap is formed between the battery and the temperature detection switch and the temperature detection itself cannot be performed.

  The present invention has been devised in view of such circumstances, and provides a temperature detection switch mounting structure capable of stable temperature detection regardless of the height difference due to the dimensional tolerance of the battery height or the inclination of the detection surface. For the purpose.

  In order to achieve such an object, the invention according to claim 1 is a mounting structure of a temperature detection switch for detecting a surface temperature of a battery, and is provided on a battery fixing plate that presses an upper surface of a battery accommodated in a battery case. A temperature detection switch mounting bracket made of a strip-shaped plate having a slit formed in the longitudinal direction at the tip is attached, and the temperature detection switch is swung between two tongue pieces of the temperature detection switch mounting bracket formed by the slit. It is characterized by being mounted freely.

  The invention according to claim 2 is the temperature detection switch mounting structure according to claim 1, wherein the tongue pieces have different lengths and are provided with a pair of front and rear mounting flanges facing the both tongue pieces. A temperature detection switch is pivotably mounted between the two, and the invention according to claim 3 is the temperature detection switch mounting structure according to claim 1, wherein the tongue piece has a length dimension. Similarly, a temperature detection switch is swingably mounted between a pair of left and right mounting flanges provided to face both tongue pieces.

  Further, the invention according to claim 4 is the mounting structure of the temperature detection switch according to claim 2 or claim 3, wherein the temperature detection switch is a pair of supports inserted through a support hole provided in the mounting flange. The invention according to claim 5 is characterized in that, in the temperature detection switch mounting structure according to claim 4, the swing fitting is provided at both end sides. A pair of support pieces are formed in a U-shaped cross section, and a temperature detection switch is sandwiched from above by the swinging metal fitting.

  According to a sixth aspect of the present invention, in the temperature detection switch mounting structure according to the fifth aspect, the support piece has an L-shaped cross section in which a narrow insertion portion provided at a tip is inserted into the support hole. The temperature detecting switch according to claim 5, wherein a protrusion that contacts the support piece is provided on a mounting flange that is formed in a shape and faces the support piece. In the mounting structure, the support piece is formed in an L-shaped cross-section in which a narrow insertion portion provided at the tip is inserted into the support hole, and the support piece facing the mounting flange is attached to the mounting flange. A feature is that a protrusion to be in contact with the protrusion is provided.

According to the invention according to each claim, stable temperature detection can be performed regardless of the height difference due to the dimensional tolerance of the battery height and the inclination of the detection surface.
According to the inventions according to claim 2 and claim 3, the temperature detection switch is mounted in the horizontal direction or the vertical direction by selecting and using the temperature detection switch mounting bracket according to the layout (specifications) of the devices around the battery case. Therefore, it has an advantage of excellent practicality.

Further, according to the inventions according to claim 4 and claim 5, the swinging temperature detection switch is firmly held by the swing metal fitting, and the temperature detection switch can be accurately pressed against the upper surface of the battery 3.
Further, according to the inventions according to claims 6 and 7, since the protrusions prevent the surface contact between the support piece and the mounting flange, these contact resistances are reduced, and the temperature detection switch easily swings. Moreover, it has the advantage that the heat radiation from the temperature detection switch can be prevented by the point contact of the protrusion.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, the same code | symbol is attached | subjected to the same thing as the prior art example shown in FIG.9 and FIG.10, and those description is abbreviate | omitted.
1 to 5 show a mounting structure of a temperature detection switch according to one embodiment of claims 1, 2 and 4 to 6. In FIG. 1 and FIG. Similar to the battery fixing plate 13, two battery fixing plates are installed between the opposite side walls 11 of the battery case 1, and the battery fixing plate 31 is pressed against the upper surface 15 of the battery 3 to fix the battery 3. . The battery fixing plate 31 is juxtaposed in a direction orthogonal to the battery positioning plate 7.

Thus, as shown in FIG. 2, the two battery fixing plates 31 are different from the battery fixing plate 13 shown in FIG. Has a cross-sectional shape extending upward, and a temperature detection switch mounting bracket 37 is screwed to the upper surface 35 of the mounting piece 33 of one battery fixing plate 31.
As shown in FIG. 3, the temperature detection switch mounting bracket 37 is made of a thin strip-shaped plate material (spring material) having a slit 39 formed in the longitudinal direction at the tip, and the length of the slit 39 is made different. Two tongue pieces 41 and 43 are formed.

As shown in FIGS. 3 to 5, the end of the long tongue piece 41 is bent downward in a cross-sectional L shape, and a mounting flange 45 having the same width M as the temperature detection switch mounting bracket 37 is provided. The mounting flange 45 extends on an extension line of the short tongue 43.
On the other hand, the front end of the tongue piece 43 is also bent downward in an L-shaped cross section to form a mounting flange 47 that faces the mounting flange 45.

The temperature detection switch 19 is mounted laterally along the longitudinal direction of the temperature detection switch mounting bracket 37 between the pair of front and rear mounting flanges 45 and 47 formed as described above via a swing bracket 49. .
As shown in the figure, the swing metal fitting 49 is composed of a metal fitting body 51 having a U-shaped cross section and a pair of support pieces 53 and 55 extending upward from both ends of the metal fitting body 51. The temperature detection switch 19 is clamped from above 51 between both clamping pieces 57.

The support pieces 53 and 55 are formed in an L-shaped cross section through which flat plate-like insertion portions 63 and 65 having narrow tips are inserted into support holes 59 and 61 provided in the mounting flanges 45 and 47, respectively. The temperature detection switch 19 is mounted between the mounting flanges 45 and 47 via the swing metal fitting 49 so as to be swingable in the direction of the arrow in the figure.
Further, dowels (protrusions) 67 that are in point contact with the outer peripheries of the support pieces 53 and 55 are provided on the inner peripheries of the mounting flanges 45 and 47 facing the support pieces 53 and 55, respectively. Makes point contact with the outer peripheries of the support pieces 53 and 55, thereby preventing surface contact between the mounting flanges 45 and 47 and the support pieces 53 and 55 and preventing heat radiation from the temperature detection switch 19.

  3, 69 is a positioning flange for the battery fixing plate 31 (upper surface 35) formed on the other end of the temperature detecting switch mounting bracket 37, and 71 is a temperature detecting switch on the upper surface 35 of the battery fixing plate 31. When the temperature detection switch mounting bracket 37 is screwed to the battery fixing plate 31 with a screw hole of a screw 73 for fixing the mounting bracket 37, the tongue pieces 41 and 43 are bent upward and mounted via the swing swing bracket 41. A temperature detection switch 19 attached between the flanges 45 and 47 is set so as to be in pressure contact with the upper surface 15 of the battery 3.

Since the present embodiment is configured as described above, first, the battery 3 accommodated in the battery case 1 is fixed by the battery positioning plate 7 and the battery fixing plate 31 as shown in FIGS.
While the positioning flange 69 is locked to the end of the upper surface 35 of the battery fixing plate 31, the temperature detection switch mounting bracket 37 to which the temperature detection switch 19 is swingably attached via the swing metal fitting 49 is attached to the upper surface 35. You can just screw in.

  Thus, even when there is a difference in height due to the dimensional tolerance of the battery height during this mounting, unlike the conventional structure shown in FIG. Since the temperature detection switch mounting bracket 37 is directly attached, and the two tongue pieces 41 and 43 of the temperature detection switch mounting bracket 37 bend according to the dimensional tolerance of the height of the battery 3 to which the temperature detection switch 19 is pressed, There is no gap between the upper surface 15 of the battery 3 and the temperature detection switch 19, and the pressure on the contact surface is always constant.

Further, even if the detection surface (upper surface 15) is inclined due to the dimensional tolerance of the battery height, the tongue pieces 41 and 43 are bent according to the inclination, and the temperature detection switch 19 is connected to the temperature detection switch 19 via the swing metal fitting 49 as shown in FIG. And since it swings freely in the direction of the arrow as shown in FIG. 5, there is no gap between the upper surface 15 of the battery 3 and the temperature detection switch 19, and the pressure on the contact surface is always constant.
The dowel 67 is point-contacted to the outer periphery of the support pieces 53 and 55 to prevent surface contact between the attachment flanges 45 and 47 and the support pieces 53 and 55. The contact resistance is reduced and the temperature detection switch 19 is easily swung, and the point contact is thus prevented from radiating heat from the temperature detection switch 19. The swing metal fitting 49 firmly holds the oscillating temperature detection switch 19 from above so that the temperature detection switch 19 is accurately pressed against the upper surface 15 of the battery 3.

Therefore, according to the present embodiment, stable temperature detection can be performed regardless of the height difference due to the dimensional tolerance of the battery height and the inclination of the detection surface.
In the above embodiment, the support pieces 53 and 55 of the swing metal fitting 49 are formed in an L-shaped cross section as shown in FIG. 4, but the support pieces are formed in a straight shape that can be inserted into the support holes 59 and 61. In this case, the vertical dimension of the holding piece of the metal fitting body may be adjusted, and the temperature detection switch 19 may be brought into pressure contact with the upper surface 15 of the battery 3.

Further, as in one embodiment of the present invention (not shown), a dowel contacting the inner periphery of the mounting flanges 45, 47 may be provided on the outer periphery of the support pieces 53, 55 facing the mounting flanges 45, 47, According to these embodiments, the intended purpose can be achieved as in the above-described embodiment.
FIGS. 6 to 8 show a temperature detection switch mounting bracket used in one embodiment of claims 1, 3 to 6. In the embodiment of FIG. 1, the temperature detection switch 19 is replaced with a temperature detection switch mounting bracket 37. However, in this embodiment, the temperature detection switch is mounted in the vertical direction perpendicular to the longitudinal direction of the temperature detection switch mounting bracket according to the layout (specifications) of the devices. is there.

Hereinafter, although this embodiment is described based on drawing, the same code | symbol is attached | subjected to the same thing as the said embodiment, and those description is abbreviate | omitted.
In FIG. 6, reference numeral 75 denotes a temperature detection switch mounting bracket made of a thin strip-shaped plate material (spring material) having a slit 77 formed in the longitudinal direction at the tip, and the slit 77 has the same length. Two tongue pieces 79 and 81 are formed.

  And the mounting flanges 83 and 85 which the support holes 59 and 61 open respectively are extended in the outer edge part of the front-end | tip of both tongue pieces 79 and 81, and are extended below, and as shown in this embodiment, A temperature detection switch 19 is mounted between the opposing left and right mounting flanges 83 and 85 with the same structure as that of the above-described embodiment via a swing metal fitting 41 so as to be swingable in the direction of the arrow. The detection switch 19 is mounted in a vertical direction perpendicular to the longitudinal direction of the temperature detection switch mounting bracket 75.

Further, dowels 67 that are in point contact with the outer periphery of the support pieces 53, 55 are provided on the inner periphery of the mounting flanges 83, 85, and the temperature detection switch mounting bracket 75 is similar to the temperature detection switch mounting bracket 37. Screwed to the upper surface 35 of the battery fixing plate 31.
Since the present embodiment is configured as described above, when the temperature detection switch mounting bracket 75 to which the temperature detection switch 19 is swingably attached is screwed to the upper surface 35 of the battery fixing plate 31, a dimensional tolerance of the battery height is provided. Even if there is a difference in height, the temperature detection switch mounting bracket 75 is directly attached to the battery fixing plate 31 that is in pressure contact with the upper surface 15 of the battery 3, and the dimensional tolerance of the height of the battery 3 to which the temperature detection switch 19 is in pressure contact Accordingly, since the two tongue pieces 79 and 81 of the temperature detection switch mounting bracket 75 are bent, no gap is generated between the upper surface 15 of the battery 3 and the temperature detection switch 19, and the pressure on the contact surface is always constant. Become.

Further, even if the detection surface (upper surface 15) is inclined due to the dimensional tolerance of the battery height, the tongue pieces 79 and 81 are bent according to the inclination, and the temperature detection switch 19 is connected to the temperature detection switch 19 via the swing metal fitting 49 as shown in FIG. And since it swings freely in the direction of the arrow as shown in FIG. 8, there is no gap between the upper surface 15 of the battery 3 and the temperature detection switch 19, and the pressure on the contact surface is always constant.
Then, since the dowel 67 is brought into point contact with the outer periphery of the support pieces 53 and 55 to prevent surface contact between the attachment flanges 83 and 85 and the support pieces 53 and 55, the contact of the attachment flanges 83 and 85 with the support pieces 53 and 55. The resistance is reduced and the temperature detection switch 19 is easily swung, and the point contact is thus prevented from radiating heat from the temperature detection switch 19. The swing metal fitting 49 firmly holds the oscillating temperature detection switch 19 from above so that the temperature detection switch 19 is accurately pressed against the upper surface 15 of the battery 3.

Therefore, according to the present embodiment, it is possible to achieve the intended purpose as in the previous embodiment, and stable temperature detection is possible regardless of the height difference due to the dimensional tolerance of the battery height and the inclination of the detection surface. It has become possible.
Further, the temperature detection switch 19 can be arranged in the horizontal direction or the vertical direction by selectively using the temperature detection switch mounting brackets 37 and 75 of FIG. 3 or FIG. 6 according to the layout of the peripheral devices of the battery case 1. Since it is possible, it has an advantage of excellent practicality.

It is a top view of the attachment structure of the temperature detection switch which concerns on one Embodiment of Claim 1, Claim 2, Claim 4 thru | or 6. It is a side view of the attachment structure of the temperature detection switch which removed the side wall of the battery case. It is a top view of a temperature detection switch mounting bracket. It is a side view of a temperature detection switch mounting bracket. It is a front view of a temperature detection switch mounting bracket. It is a top view of the temperature detection switch mounting bracket used for the mounting structure of the temperature detection switch which concerns on one Embodiment of Claim 1, Claim 3 thru | or 6. It is a side view of a temperature detection switch mounting bracket. It is a front view of a temperature detection switch mounting bracket. It is a top view of the mounting structure of the conventional temperature detection switch. It is a side view of the attachment structure of the temperature detection switch which removed the side wall of the battery case. It is a top view of the conventional temperature detection switch mounting bracket. It is a side view of a temperature detection switch mounting bracket.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery case 3 Battery 7 Battery positioning plate 11 Side wall 15,35 Upper surface 19 Temperature detection switch 31 Battery fixing plate 33 Mounting piece 37,75 Temperature detection switch mounting bracket 39,77 Slit 41,43,79,81 Tongue piece 45,47 , 83, 85 Mounting flange 49 Swing bracket 51 Bracket body 53, 55 Support pieces 59, 61 Support holes 63, 65 Insertion portion 67 Dowel (projection)
69 Positioning flange

Claims (7)

A temperature detection switch mounting structure for detecting the surface temperature of the battery,
Attach a temperature detection switch mounting bracket made of a strip-shaped plate material with a slit at the tip in the longitudinal direction to the battery fixing plate that presses the upper surface of the battery housed in the battery case,
A temperature detection switch mounting structure, wherein a temperature detection switch is swingably mounted between two tongues of a temperature detection switch mounting bracket formed by the slit.   2. The temperature detection according to claim 1, wherein the tongue pieces have different lengths, and a temperature detection switch is swingably attached between a pair of front and rear mounting flanges provided opposite to the tongue pieces. Switch mounting structure.   The temperature detection according to claim 1, wherein the tongue pieces have the same length dimension, and a temperature detection switch is swingably attached between a pair of left and right mounting flanges provided to face both tongue pieces. Switch mounting structure.   4. The temperature detection according to claim 2, wherein the temperature detection switch is attached to a swing fitting formed with a pair of support pieces that pass through support holes provided in the mounting flange. 5. Switch mounting structure.   5. The swinging fitting is formed in a U-shaped cross-section in which a pair of support pieces are formed at both ends, and a temperature detection switch is sandwiched from above by the swinging fitting. Mounting structure of the described temperature detection switch.   The support piece is formed in an L-shaped cross-section in which a narrow insertion portion provided at the tip is inserted into the support hole, and a protrusion that contacts the support piece protrudes from a mounting flange facing the support piece. The temperature detection switch mounting structure according to claim 5, wherein the temperature detection switch is mounted. The support piece is formed in a L-shaped cross-section in which a narrow insertion portion provided at the tip is inserted into the support hole, and a protrusion that contacts the attachment flange protrudes from the support piece facing the attachment flange. The temperature detection switch mounting structure according to claim 5, wherein the temperature detection switch is mounted.

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