TWI328076B - - Google Patents

Description

1328076 - The invention is related to the cooling of an internal combustion engine (hereinafter referred to as an "engine") for use in an automobile or the like, for example, in the technical field of the invention. The water temperature is a constant temperature control device that variably controls the water temperature in the chilled water temperature control system of the variable control. [Prior Art] For example, a thermostat that is disposed in a cooling water system such as an engine has a temperature element that has a built-in sense and a temperature change of the cooling water flowing in the circulation passage to expand and contract. Further, in the above-described thermostatic device i, the opening and closing of the valve body is performed by arranging the volume change of the expansion and contraction of the thermal expansion body, and the cooling water functions to maintain a predetermined temperature. In the prior art thermostat device, when the frame covering the temperature element is formed of metal in a woman's clothing, for example, the frame member divided into upper and lower parts is locked or the cost of the refining is increased, and the installation time is also long. Also, in the temperature element characteristic test of =, when there is an inappropriate temperature element, it is impossible to easily decompose the frame, and it takes time to replace the temperature element. In this case, the invention of the thermostat device is shown in Fig. 6 . In the sixth (Fig. 6(4): Fig. 6(b) shows the bottom view of Fig. 6(4), the thermostat 5", the upper frame 51 and the disc-shaped lower portion between the opposite gaps of the sigh. Installed with a sense of clean 7059-6686-PF1 1328076 Xu Nian Niuyue from the day repair (more) is replacing the page body's 'degree of the element 54 ° at the upper front end of the aforementioned temperature element 54, protruding piston 55, the aforementioned piston 55 card The outer surface of the upper frame 51 is joined to the inner side surface of the upper frame 51. Further, a flange-shaped valve body 56 is formed on the outer peripheral surface of the temperature element 54, and the outer peripheral seating surface 56a is elastically pressed by a coil spring 57 provided on the inner surface of the lower frame 52. The inner peripheral surface 51b of the upper frame 51 is contacted. Further, a locking hook 51c is formed at a lower end portion of the upper frame 51, and as shown in Fig. 6(b), a locking opening 52a is formed in the lower frame 52. The opening has a larger opening than the locking hook 51c, and has an opening that is smaller than the locking hook 51c in the circumferential direction. Therefore, when the upper and lower frames are attached, the coil spring 57 is pressed to lock it. The hook 51c is inserted into the locking opening 52a, and the upper frame 51 or the lower frame 52 is slightly rotated, whereby the attachment can be easily performed. In the case of the decomposition, the upper frame 51 or the lower frame 52 can be easily disassembled by a slight rotation. When the structure of Patent Document 1 is used, it is not necessary to perform the previous locking or welding when assembling the upper and lower frames. The process can be assembled by locking. Therefore, it can be easily assembled and disassembled, so that the production efficiency can be improved. At the same time, in the temperature component characteristic test after assembly, when there is an inappropriate temperature component, the Mb is easily decomposed. By replacing the components with the frame, it is easy to achieve uniformity of the product characteristics. [Patent Document 1] 曰本实开昭52·64243 (Page 4, Line 2 to Page 5, Line 5, Figure 2, and Section 3) Fig. 1 [Explanation] [Problems to be solved by the invention] 7059-6686-PF1 6 1328076 + month / 6 days repair, in the previous constant temperature device 'As mentioned above, the frame covering the temperature element is formed of metal Therefore, 'it will make it heavier and costly. And although it is not mentioned in Patent Document 1, in the previous thermostat, in the outer peripheral surface of the & rim valve, in order to improve the characteristics of the valve, it is burned. Rubber structure The method is formed by the method, and therefore, it takes a lot of labor to form a flanged valve body, and the production efficiency is not good. The object of the present invention is to provide an easy assembly and disassembly in view of the above circumstances, and at the same time, it is lightweight and A thermostat that reduces the cost. [Means for Solving the Problem] In order to solve the above problem, the thermostat according to the present invention is installed in a casing that connects a plurality of passages through which cooling water flows, and corresponds to a temperature change of the cooling water. The passage is connected or interrupted by the action of the valve. The heat exchanger includes a piston that slides up and down by a temperature change, and has a flange-shaped valve body at the periphery, and the flange is moved forward and backward by the piston. The valve body is actuated by a valve, and the spring is wound around the temperature element, one end elastically presses against the inner side of the flange-shaped valve body; the upper frame forms a valve seat abutting the inner side of the flange-shaped valve body; and the lower frame is pressed and contacted The other end of the spring; the upper frame is formed with a locking frame, and at the same time, the lower frame is formed with a plurality of locking hooks for locking the locking frame, and at least the lower frame is made of an elastic material The elastic hook is used to lock the locking frame to form the upper frame and the lower frame. The fox 7L member has a stepped portion formed on the periphery of the element body and a 0-ring. The stepped portion is attached to the peripheral surface of the element body; and the flanged valve body is formed of at least a step portion and a 〇-shaped ring. 7059-6686-PF1 7 1328076 ^April, the next day, the replacement page is replaced, so that the upper and lower frames are formed of a material having elasticity, and the elasticity is used to lock the fixing, so that the assembly and disassembly of the thermostat can be It's easy. Therefore, the production efficiency can be improved, and at the same time, in the temperature element characteristic test after assembly, when an inappropriate temperature element is found, the frame can be easily disassembled and the component can be replaced, and the product characteristics can be uniformized. Further, as described above, the upper and lower frames can be formed, for example, by plastic or press-formed metal sheets, and the effect of weight reduction and cost reduction can be obtained as compared with the prior metal products. Further, the valve body uses a 〇-shaped ring of a rubber material, whereby the assembly is relatively easy compared with the case of the previously fired rubber member, and the production efficiency can be improved. also

The k-degree 70 仵 is better to have a spring holder provided in the spring, and the spring holder has a flange-like spring receiving portion at which one end of the spring abuts. The flange shape (four) is a step portion and a spring receiving portion. And a 0-ring provided between the stepped fish spring receiving portions; the 〇-shaped ring system receives the elastic force from the spring via the spring receiving portion, and the skin is fixed between the segment portion and the spring receiving portion... Spring The spring receiving portion of the holder: The width is approximately the same as the diameter of the 0-ring. In this way, between the 0-ring and the bullet, there is a magazine receiving portion. Therefore, the 0-ring does not directly bear the elastic force of the bomb, and the elastic force is used to play the yellow bearing. It can prevent the 0-ring from being “shaped. That is, the 0-ring is deformed according to the design value. Therefore, 2 prevents the cooling water from leaking during opening and can be used stably for a long time. In the state where the upper frame and the lower frame are locked, the hook length formed in the lower frame of the 7059-6686-PF1 8 1?7 material month/6th is larger than the Φ between the lower frame and the inner wall of the casing. , 畏招: # w The gap between the soil is better than the upper frame and the lower part of the lower frame, the length of the locking hook is smaller than the spring and the lower frame. f I ?L The maximum gap between the two is also the same - to 'form the locking hook to set the temperature to the station.* When printed on the device, the upper frame and the lower frame will not be detached. :::The upper frame is provided with a micro-motion valve that excludes air bubbles, so that the lower frame card

The hook is tied to the (four) locking frame ^ card. @他止止了—The upper frame and the lower part are not assembled when the locking hook contacts the micro-motion valve, that is, when the piece is to be locked to the position where the micro-motion valve cannot operate normally. Therefore, the assembly of the upper and lower frames can be carried out in a medium, and in this case, the micro-actuating valve can be surely actuated. Further, in the spring holder, a plurality of communication holes for bringing the cooling water into contact with the element body are formed.

Thereby, the cooling water contacts the element body through the communication hole, and the temperature sensing accuracy of the temperature of 7 L can be improved. Further, since the reactivity of the temperature element can be changed by changing the diameter of the communication hole, it is possible to manufacture a thermostat having various reactivity by the above adjustment. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure i is a partial cross-sectional view showing the structure of the thermostat device of the present invention; Fig. 2 is a view showing the thermostat device of Fig. 1 after being placed in the casing; and Fig. 3 shows the i i 7059-6686-PF1 9 1328076 1 The « _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The thermostat device shown in Fig. 1 includes a temperature element 2 that senses a temperature change of the cooling water to perform a valve operation; an upper frame 4 and a lower frame 5, a cover temperature of 70 pieces 2; and a spring 8, a winding temperature element 2, at the same time set in the front of the frame. Further, the upper frame 4 and the lower frame 5 are formed of a material having elasticity (for example, a plastic or a press-formed metal sheet). And a metal element body 10 having a thermal expansion body 13 that senses a temperature change of the cooling water flowing in the circulation path and expands and contracts, and a thermal expansion body protruding from the front end of the element body 1 : 3, the piston 3 that slides up and down. Further, the upper end of the piston 3 is engaged with the top inner side surface 4f of the upper frame 4. 2 The cymbal ring 6 is mounted on the circumferential surface of the temperature element 2, and (4), and a plastic spring holder 9 that substantially covers the element body 1 is attached to the lower surface. More specifically, a step portion is formed on the periphery of the element body 10, and a 〇-shaped ring is attached to the wearer to abut the step portion 10a. Further, a pressing contact spring is formed on the spring holder 9 covering the lower surface of the element body 1 under the cymbal. 8 - end flange-shaped spring receiving portion 9a. The flange-shaped valve body 7 is constituted by the step portion l〇a, the 坏-shaped defect 6 and the spring bearing portion 9a. Take and the width of the spring receiving portion 9 of the spring retainer 9 is the same. The type of ring 6 is approximately the same diameter. The ::: 〇 type ring 6 is fixed between the plaque 9a and the step 胄 10a by the elastic force of the spring 8. Moreover, when the assembled component body 10 is clamped 15 9 , the inner side of the spring retainer 9 is abutted to be formed at 7059-6686-PF1 ^28076

The corner portions 10c, 10d of the peripheral portion of the body 10. By ^ ^ construction, the spring s elastic force is not directly applied to the 0-ring 6Jl 'the elastic force on the 9-ring 6 of the spring receiving portion can be uniformized, the deformation width of the 0-ring 6 can be '10 Certainly, uneven deformation of the 〇-shaped ring 6 can be prevented. Further, the 〇-shaped ring 6 can be fixed to the element body 1 以 by the cooling water pressure without being attached or burned with respect to the element body 1 ’. Therefore, the 〇-shaped ring 6 does not come off the element body 1〇. Further, in the present embodiment, the cross-sectional shape of the 〇-shaped ring 6 is circular, but the present invention is not limited thereto. For example, the cross-sectional shape may be a rectangle. Further, in the upper frame 4, when the thermostat device is installed in the casing, the flange 4b which divides the casing into two is formed. A protruding portion 4c is formed on the entire circumference of the peripheral portion of the flange portion, and a rubber ring 12 is attached to the protruding portion 4c to improve the sealing property. Further, in the center of the flange 4b, a valve seat 4e that abuts against the front side of the flange-shaped valve body 7 in the closed state is formed. As described above, the spring 8 is provided to wind the temperature element 2, and one end thereof elastically abuts against the inner side of the flange-like valve body 7, and the other end thereof presses and contacts the bottom surface of the lower frame 5. Therefore, when the piston 3 is in the contracted state, the flange-like valve body 7 is pressed against the valve seat 4e by the elastic force of the spring 8, and the valve body is closed. Further, the thermal expansion body 13 is expanded, the piston 3 is extended, and the element body 10 is pressed downward, whereby the flange-like valve body 7 is separated from the valve seat 4e to open the valve body. Further, the outer diameter of the spring 8 is approximately the same as the diameter of the flange-like valve body 7, so that '旎 prevents slippage caused by the inclination of the flange-like valve body 7, 7059-6686-PF1 11 1328076 _ Repairing (more) the replacement page gives a stable valve action. Further, a plurality of locking frames 4a (four in the present embodiment) are formed on the lower surface of the flange 4b of the upper frame 4, and a card jL hook 5a for locking the locking frame 4a is formed in the lower frame 5. Further, as described above, the lower frame 5 is constructed of a material having elasticity. Therefore, the locking hook 5a is locked and fixed to the locking frame 4a by the elasticity, and the upper frame 4 and the lower frame 5 are integrated. . Further, in the spring holder 9, a plurality of communication holes 9c for bringing the cooling water into contact with the element body are formed. By the communication hole 9c, the cooling water is brought into contact with the 70 body 10, and the temperature sensing accuracy of the temperature element 2 can be improved. Further, in the spring disengagement device 9, when the valve body 7 is operated between the flanged valve bodies 7, the cooling water flowing from the engine side flows to the bypass flow path directly connected to the bow If side. Further, when the above-described inter-operating operation is in an open state, the bypass flow path is closed to the bypass valve 9b. Further, a hole 4d communicating with the upper and lower sides is formed on the flange 4b, and the hole is provided with a micro-gap valve 11 for discharging air bubbles. φ Next, the locking portions of the upper frame 4 and the lower frame 5 will be described in accordance with Fig. 2 . Fig. 2(4) is a partial cross-sectional view of the thermostat i disposed in the casing %, and Fig. 2(b) is a cross-sectional view taken along line A_A of Fig. 2(a); and is omitted in Fig. 2(a) Micro-motion valve 丨J. As shown in Fig. 2(a), in the state in which the upper frame 4 and the lower frame 5 are locked, the length L of the locking hook 5a formed in the lower frame 5 is between the lower frame $ and the inner wall of the casing 30. The gap size S1 is even larger. Moreover, the length L of the locking hook 5a is the highest of the spring 8 and the lower frame 5

7059-6686-PFI 12 1328076 Steam Year + Month Day Repair (Imperial) Replacement Page Large gap size S2 is even smaller. That is, the assembly of the thermostat device 1 is facilitated by forming the hook hook 5a into a predetermined length. At the same time, the locking of the upper frame 4 and the lower frame 5 is not released. Further, in the embodiment shown in the figure, the locking hook 5a is protruded from the central axis direction of the thermostat 1 and is locked from the outside of the locking frame ,. However, the present month is not limited to this 'can also make the card The hook 5a is protruded from the side of the thermostat, and is locked from the inside of the locking frame 4a. In the case of this shape, as described above, it is easier to assemble based on the fact that the length L of the locking 5a is preferably larger than the maximum gap size of the spring 8 and the lower frame 5. That is to say, the catching fishing 5 & length ^ can also be larger than the maximum gap j, and the west is wide with a spiral magazine. In this case, the locking hook 5": the spiral spring 8 gap can be self-locking inside the frame 4a In the card state, the latching of the upper frame 4 and the lower frame 5 is not easily separated. The locking shape is further as shown in Fig. 2(b), and the micro-valve valve 11 in the opening flange 4b of the locking frame 4 in the upper frame 4 is provided with & ^, that is, the lower frame 5 is locked. 5 places to fish: formed (four in the picture). The position of the 11th Jin _ Gan 3 is locked in contact with the micro-motion valve, /, and his hook hook 5a is abutting the locking frame 4a m 4g, all without locking. < Ugly D again. Since the p-bit and the 11 are configured as such, the lower frame 5 locking hook 5a can be surely actuated. The assembly of the upper and lower frames does not cause assembly errors, and does not interfere with the micro-motion valve Π, so that the micro-motion valve first follows the assembly process of the temperature-sensing device 1 according to FIG. 3 < 3(4)圊' 6 embedded in the thermal expansion body first 7059-6686-PF1 13 13 1328076 ?? year + month / repair (3⁄4 is replacing the component body 10 of the page, and, the element body 10 is inserted into the spring dislocation device 9. Moreover, As shown in Fig. 3(b), the piston 3 is inserted into the piston hole 1b formed in the upper portion of the element body 10 to form the temperature element 2. Next, as shown in Fig. 3(c) The frame 4 covers the temperature element 2. Further, the micro-motion valve 11 is attached in advance to the micro-valve hole 4d formed in the flange 4b of the upper frame 4. Further, the temperature element 2 to which the spring holder 9 is attached is inserted. The inner side of the spring φ 8 and the lower frame 5 are locked to the upper frame 4 in a state where the spring 8 is compressed by the lower frame 5. Finally, as shown in the third (d), the rubber ring 12 is embedded in the spring ring 12 The protrusion 4c of the peripheral edge of the flange 4b of the upper frame 4, thereby completing the thermostat device (third (top view). As described above, In the assembly process of the temperature device, the components can be easily assembled by supplying the components in a regular direction. Therefore, the assembly time can be shortened, and the cost of the manufacturing equipment and products can be reduced. It is formed of an elastic material and is locked by the elasticity, so that the decomposition can be easily performed. Therefore, the production efficiency can be improved, and in the temperature component test after assembly, it is easy to have an inappropriate temperature component. By disassembling the frame and replacing the components, it is easy to achieve uniformity of product characteristics. Next, the operation of the thermostat 1 will be described based on Fig. 4. As shown in Fig. 4(a) and (b), the thermostat system is installed. The casing 3 is used in the casing 3. In the casing 30, the cooling water flow path 3 from the engine side, the cooling water flow path to the side, the cooling water flow path 32 to the engine side, and the cooling water bypass to the engine side 7059- 6686-PF1 14 1328076 —_ cup year + month 尨 day repair (more) positive replacement page flow path 3 3 is respectively connected to the inside of the casing 30, and the thermostat 1 is made to approximate the flange 4b of the upper frame 4 of the casing 2 divisions. That is, 'for the engine side flow path 31 and The flow path 33 blocks the radiator side flow path 32 by the flange 4b. In this state, the cooling water flowing from the engine side flows from the engine side flow path 3 1 to the casing 30. The cooling water is in contact with the temperature element 2 of the thermostat device 1. When the temperature of the cooling water is lower than a predetermined temperature, the expansion of the thermal expansion body in the temperature element 2 changes little, so, as shown in Fig. 4(a) As shown in the figure, the flanged valve body 7 is in a closed state. At this time, the bypass flow path 33 is opened by the bypass valve 9b, and the radiator side flow path 32 is closed, so that the flow from the engine side flows in. The cooling water does not flow to the radiator side, and is directly circulated to the engine side through the bypass flow path 33. In addition, when the temperature of the cooling water is higher than a predetermined temperature, the temperature element 2 changes by the expansion of the built-in thermal expansion body, as shown in FIG. 4(b), the piston 3 will elongate and the temperature element 2 is depressed. The flanged valve body 7 is in an open state. Further, at this time, since the bypass valve 9b is also depressed, the bypass flow path 33 is closed. Therefore, the 'bypass flow path 33 is closed by the bypass valve 9b, and the radiator side flow path 32 is opened. Therefore, the cooling water flowing in from the engine side flows to the radiator side, and is cooled in the radiator. After the water temperature drops, the ring is looped to the engine side. When one embodiment of the above description is used, the upper and lower frames 4, 5 are formed of a material having elasticity, and the elasticity is used for locking and fixing. Therefore, 7059-6686-PF1 15 1328076 April/6, 9 Repair (t) is replacing the page thermostat 1 assembly and disassembly can become η 因此 ^ Therefore 'can improve production efficiency, at the same time, after assembly, in the temperature component +, the field m line injection test or in the middle, when found discomfort In the case of 70 pieces, the frame can be easily disassembled and the components can be replaced, and the product characteristics can be uniformized. Thus, as described above, the upper and lower frames 4, 5 are formed, for example, by plastic or stamped metal sheets, with the effect of prior weighting and cost reduction. In comparison with the cymbal, it is possible to obtain a light-weight, flange-shaped valve body 7 using a 〇-shaped ring of a rubber material, whereby it is easier to use a product that has previously burned a rubber member than a "one-seat" "six" package, and Can be inefficient. In addition, between the 〇-shaped ring 6 ^ _ Danping yellow 8 , there is a spring bearing and a 邛 9a, so the 〇-shaped ring 6 , , / 摒 this e also * mine and the elastic force of the bearing spring 8, the spring bearing . The 卩9a deforms the unevenness of the shackle ring 6 applied to the 〇-shaped ring 6. (3) H can prevent: the outer diameter of the spring 8 is different from the flange-like intermediate body 7 (the spring receiving portion is about the same diameter), so that the P large method π is a sliding failure caused by the inclination of the flange-shaped valve body 7, and stable stability can be obtained. The valve body moves. The sound of the upper frame 4 and the lower frame 5 is stabilized by the locking hook 5a being set to a predetermined size 'in the casing 3G, and the lower frame 5 of the upper frame 4 is not disengaged. Moreover, the locking armature 4a is formed so as to avoid the position of the micro-actuating valve u in the flange servant. Therefore, the lower frame 5 positive hook 5a does not interfere with the fine movement 阙u. Moreover, the material "9" is cooled. The water contact element body: the plurality of communication holes 9c' of the crucible, so that the cold water contacts the π-piece body 1G through the communication hole 9c, and the temperature sensing accuracy of the temperature element can be suppressed. 7059-6686-PF1 16 1328076 + month "day repair (more) is replaced by ^ page and the reactivity of the temperature element 10 can be changed by changing the diameter of the communication hole 9c, so that the thermostat having the species= property by the above adjustment can be manufactured. In addition, at least the locking hook 5a can be made of a material having elasticity (for example, plastic, rushing The upper metal frame 4 can be integrally formed in the casing 30 as shown in Fig. 5. That is, even if the locking phase 4a is integrally formed with the casing 30, the lower casing 5 is used. The elasticity makes it easy to assemble the thermostat 1 in the housing 3.

[Industrial Applicability] The present invention is very suitable for use in a cooling water temperature control system in which the temperature of the cooling water used in the internal combustion engine of an automobile or the like is variably controlled, and a constant temperature device in which the water temperature is variably controlled. [effect of the invention]

§ When using the present invention, it is possible to supply a jujube to the total strength of the Q-chow shaving fork in addition to the women's clothing and the decomposition is very similar. It can also be lightweight and reduce the cost of the temperature device. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the surface of the present invention after thermostats 2(a) to 2(b) of the present invention. A partial cross-sectional view of the device configuration. The thermostat of Fig. 1 is shown in Fig. 3(a) to the first drawing. Fig. 3(e) shows the assembler of the thermostat of the first figure 7059-6686-PF1 17 1328〇76 The month of the month is replaced by the fourth (4) to the fourth (8) diagram showing the thermostat of Fig. 1 Fig. 5 is a front view showing the other structure of the thermostat of the present invention. Figures 6(a) to 6(b) show the drawings of the previous thermostat configuration

[Main component symbol description] 1~ thermostat device; 2~temperature element; 4~ upper frame; 5~lower frame; 6~0 type ring; 8~spring; 9a~spring receiving part; l〇a~step part; ~ Rubber ring; 4a ~ locking frame; 5 a ~ - hook; 7 ~ flanged valve body; 9 ~ spring holder; 10 ~ element body ·, 11 ~ micro-motion valve; ~ thermal expansion body. Reference 7059-6686-PF1 18

Claims (1)

^28076 _ 抒年+月飧日修 (more) is being replaced on page 10, the scope of patent application: I - a kind of thermostat device, installed in the housing connecting a plurality of passages through the cooling water, corresponding to the temperature change of the cooling water The passage is connected or interrupted by a valve action, and the method includes the following: the temperature element has a piston that slides up and down by a temperature change, and has a flange-shaped wide body at the periphery, and the piston is The flange-shaped valve body is operated by the valve during the advancing and retracting operation; the spring is wound around the temperature element to be disposed inside the flange-shaped valve body; t the upper frame is formed to abut against the valve seat inside the flange-shaped valve body; And a lower frame press-contacting the other end of the spring; a locking frame is formed on the upper frame, and a plurality of locking hooks for locking the locking frame are formed in the lower frame, and at least the lower portion is elastic a material structure in which the locking hook is locked and fixed by the locking hook to fix the upper frame and the lower frame integrally; wherein the temperature element includes The element body has a stepped portion formed on the periphery thereof, and a 〇-shaped ring that abuts against the peripheral surface of the body of the stepped portion; and is attached to the 兀. The flanged valve body is configured at least. The above-mentioned step portion and the above-mentioned 〇-shaped ring are 2. The temperature-receiving device of the temperature range of the first aspect of the patent application is further provided with a temperature damper device, wherein the spring holder in the spring is sighed, the above-mentioned 7059-6686- PF1 19 1328076 < · The spring retainer has the above-mentioned receiving portion, and the flange-like spring bearing system is replaced by the flange-shaped spring bearing which is replaced by the end of the replacement spring. The stepped portion, the magazine receiving portion, and the 〇-shaped ring provided between the step portion and the spring receiving portion; the 〇-shaped ring system receives the elastic force from the spring via the elastic yellow receiving portion It is fixed between the above-mentioned stage part and the above-mentioned elastic yellow receiving part. 3. The thermostat of claim 2, wherein the spring receiving portion of the spring retainer has a width dimension that is approximately the same as a diameter of the cymbal and the ring. The thermostat according to any one of the preceding claims, wherein in the state in which the upper frame and the lower frame are locked, I is formed below. The length of the above-mentioned locking hooks of the fifth frame is larger than the gap between the lower frame and the inner wall of the casing. The thermostatic device according to any one of the first to third aspects of the invention, In the state in which the upper frame and the lower frame are locked, the length of the locking hook formed in the lower frame is smaller than the maximum gap between the magazine and the lower frame. 6' The thermostatic device according to any one of the preceding claims, wherein the upper frame is provided with a micro-motion valve for eliminating air bubbles, and one of the locking hooks of the lower frame is locked when the upper frame contacts the position of the micro-motion valve; The other type of locking hooks are in contact with the above-mentioned locking frame without being locked. 7. The thermostat according to claim 2 or 3, wherein the spring holder is formed with the cooling water contacting the above Element body 7059-6686-PF1 20 1328076 ^April/^ g-(Chu) is replacing the page number of connected holes. 7059-6686-PF1 21