CN212054880U - Electronic thermostat - Google Patents

Abstract

The utility model discloses an electronic thermostat, the outer edge of the lower surface of a fixed plate is connected with a plurality of connecting rods, the bottom ends of the connecting rods are connected with the outer side of a limiting ring, the inner side surface of the limiting ring is longitudinally provided with a plurality of guide blocks A, the interior of a shell is filled with an expansion medium, the interior of the shell is positioned above the expansion medium and is provided with a piston plate, the piston plate is provided with a mandril, the upper surface of the shell is provided with a cover body, the middle position inside the cover body is provided with a sliding sleeve, the sliding sleeve is fixed in the cover body through a pressing ring, the outer side surface of the shell is provided with a plurality of guide grooves, the guide grooves arranged on the outer side surface of the shell are matched with the guide blocks A on the inner side of the limiting ring, the inner side of the lower end of an upper piston is provided with the guide blocks B and is matched with the guide, the stability is greatly improved when the device is moved, so that the service life of the whole device is prolonged.

Description

Electronic thermostat

Technical Field

The utility model relates to an electronic thermostat technical field specifically is an electronic thermostat.

Background

The thermostat is a valve that controls a flow path of the cooling fluid. Is a thermostat, usually comprising a temperature sensing element that opens and closes the flow of air, gas or liquid by thermal expansion or contraction.

When the piston of the conventional electronic thermostat moves, the conventional electronic thermostat may rotate, thereby increasing the cavity and affecting the stability and the service life, and therefore an improved technique is urgently needed to solve the problem in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic thermostat, casing outside surface is provided with the guide way, goes up the inboard guide way cooperation that is provided with guide block A and casing through guide block B, spacing ring inboard of piston, and stability improves greatly during the removal to improve holistic life, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an electronic thermostat comprises a bracket, a shell, an upper piston and a lower piston;

the support comprises a fixed plate, connecting rods, a limiting ring, supporting arms and a supporting plate, wherein the outer edge of the lower surface of the fixed plate is connected with the connecting rods, the bottom ends of the connecting rods are connected with the outer side of the limiting ring, a plurality of guide blocks A are longitudinally arranged on the inner side surface of the limiting ring, a plurality of supporting arms are arranged on the upper surface of the fixed plate, and the top ends of the supporting arms are connected with the supporting plate;

the expansion device comprises a shell, wherein an expansion medium is filled in the shell, a piston plate is arranged above the expansion medium in the shell, an ejector rod is arranged on the piston plate, a cover body is arranged on the upper surface of the shell, a sliding sleeve is arranged in the middle of the interior of the cover body and matched with the ejector rod, a pressing ring is further arranged in the middle of the interior of the cover body, the sliding sleeve is fixed in the cover body through the pressing ring, a plurality of guide grooves are formed in the outer side surface of the shell, and the guide grooves formed in the outer side surface of the shell are matched with guide blocks A in the inner;

the upper piston is connected with the upper end of the shell, a sealing ring A is arranged on the outer edge of the upper surface of the upper piston and is matched with the fixed plate, a guide block B is arranged on the inner side of the lower end of the upper piston and is matched with a guide groove on the outer surface of the shell, the lower surface of the upper piston is connected with the upper end of a large spring, and the lower end of the large spring is connected with the upper surface of a limiting ring;

the lower piston is connected with the lower end of the small spring, the upper end of the small spring is connected with the connecting ring, the connecting ring is connected with the lower end of the shell, a sealing ring B is arranged on the outer edge of the lower surface of the lower piston, the lower surface of the lower piston is limited through a nut, and the nut is connected with the bottom of the shell.

Preferably, the utility model provides a pair of electronic thermostat, wherein, the casing includes interface section, interlude, next section and end, interface section lower extreme links to each other with the interlude upper end, the interlude lower extreme links to each other with next section upper end, next section lower extreme links to each other with the end, interface section inboard is provided with the internal thread for cooperate with the lid, the interlude inboard is provided with the spout for improve the stability of piston plate, the end outside is provided with the external screw thread, is used for mounting nut, the external diameter of next section is unanimous with the internal diameter of go-between, makes the link cover can not rock on next section.

Preferably, the utility model provides a pair of electronic thermostat, wherein, the external diameter of piston plate is unanimous with the internal diameter of the interlude of casing, the piston plate outside is provided with a plurality of guide blocks C, the guide block C in the piston plate outside cooperatees with the inboard spout of the interlude of casing, stability when improving the piston plate and removing.

Preferably, the utility model provides a pair of electronic thermostat, wherein, the lid outside is provided with the external screw thread and cooperatees with the internal thread of the interface section of casing, the external diameter of lid is unanimous with the internal diameter of the interface section of casing, guarantees lid and interface section sealing connection.

Preferably, the utility model provides a pair of electronic thermostat, wherein, the inside through-hole that is provided with of fixed plate, the inside through-hole of fixed plate is outer along setting up to the convex structure, convex structure and last piston phase-match on the outer edge of through-hole of fixed plate, convex structure improve with the leakproofness of last piston.

Preferably, the utility model provides a pair of electronic thermostat, wherein, the upper surface of upper piston lower surface and spacing ring all is provided with big spring groove, big spring top and bottom set up respectively in the big spring inslot of the upper surface of upper piston lower surface and spacing ring, stability when improving big spring and stretch out and draw back.

Preferably, the utility model provides a pair of electronic thermostat, wherein, piston upper surface and go-between lower surface all are provided with little spring groove down, little spring top and bottom set up respectively in the little spring inslot of the lower surface of lower piston upper surface and go-between, improve the stability when little spring is flexible.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the surface of the outer side of the shell is provided with a guide groove, the inner side of the upper piston is provided with a guide block A matched with the guide groove of the shell through a guide block B and the inner side of the limiting ring, and the stability is greatly improved during movement, so that the service life of the whole shell is prolonged.

(2) The sliding sleeve is arranged in the shell cover, so that the resistance of the ejector rod is reduced, and the sensitivity is improved.

(3) The piston plate outside matches through the spout of the interlude inner wall of guide block C and casing, guarantees the stability of piston plate to can not take place to rotate, reduce with shells inner wall's friction, improve the life of piston plate and casing.

(4) The lower surface of the upper piston and the upper surface of the limiting ring are both provided with large spring grooves for fixing large springs, and the upper surface of the lower piston and the lower surface of the connecting ring are both provided with small spring grooves for fixing small springs, so that the situation of spring deviation is avoided, and the stability of the thermostat is ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the housing and the cover;

FIG. 3 is a schematic view of a stop collar;

FIG. 4 is a schematic view of the upper piston structure;

fig. 5 is a schematic view of a fixing plate.

In the figure: the device comprises a shell 1, an upper piston 2, a lower piston 3, a fixing plate 4, a connecting rod 5, a limiting ring 6, a supporting arm 7, a supporting plate 8, a guide block A9, an expansion medium 10, a piston plate 11, a push rod 12, a cover body 13, a sliding sleeve 14, a pressing ring 15, a sealing ring A16, a guide block B17, a large spring 18, a small spring 19, a connecting ring 20, a sealing ring B21, a nut 22, a guide block C23, an interface section 101, a middle section 102, a lower section 103 and a head 104.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an electronic thermostat comprises a bracket, a shell 1, an upper piston 2 and a lower piston 3; the support comprises a fixing plate 4, connecting rods 5, a limiting ring 6, supporting arms 7 and a supporting plate 8, wherein the outer edge of the lower surface of the fixing plate 4 is connected with the connecting rods 5, the bottom ends of the connecting rods 5 are connected with the outer side of the limiting ring 6, a plurality of guide blocks A9 are longitudinally arranged on the inner side surface of the limiting ring 6, the upper surface of the fixing plate 4 is provided with the supporting arms 7, and the top ends of the supporting arms 7 are connected with the supporting plate 8; the expansion medium 10 is filled in the shell 1, a piston plate 11 is arranged above the expansion medium 10 in the shell 1, an ejector rod 12 is arranged on the piston plate 11, a cover body 13 is arranged on the upper surface of the shell 1, a sliding sleeve 14 is arranged in the middle of the interior of the cover body 13, the sliding sleeve 14 is matched with the ejector rod 12, a pressing ring 15 is further arranged in the middle of the interior of the cover body 13, the sliding sleeve 14 is fixed in the cover body 13 through the pressing ring 15, a plurality of guide grooves are formed in the outer side surface of the shell 1, and the guide grooves formed in the outer side surface of the shell 1 are matched with; the upper piston 2 is connected with the upper end of the shell 1, the outer edge of the upper surface of the upper piston 2 is provided with a sealing ring A16 and is matched with the fixing plate 4, the inner side of the lower end of the upper piston 2 is provided with a guide block B17 and is matched with a guide groove on the outer surface of the shell 1, a through hole is arranged in the fixing plate 4, the outer edge of the through hole in the fixing plate 4 is arranged into a boss structure, the boss structure on the outer edge of the through hole of the fixing plate 4 is matched with the upper piston 2, the lower surface of the upper piston 2 is connected with the upper end of a large spring 18, the lower end of the large spring 18 is connected with the upper surface of the limit ring 6, the lower surface of the upper piston 2 and the upper surface of the limit ring 6 are both provided with large spring; the lower surface of the lower piston 3 is connected with the lower end of a small spring 19, the upper end of the small spring 19 is connected with a connecting ring 20, small spring grooves are formed in the upper surface of the lower piston 3 and the lower surface of the connecting ring 20, the top end and the bottom end of the small spring 19 are respectively arranged in the small spring grooves in the upper surface of the lower piston 3 and the lower surface of the connecting ring 20, the connecting ring 20 is connected with the lower end of the shell 1, a sealing ring B21 is arranged on the outer edge of the lower surface of the lower piston 3, the lower surface of the lower piston 3 is limited through a nut 22.

The casing 1 includes interface section 101, interlude 102, lower section 103 and end 104, interface section 101 lower extreme links to each other with interlude 102 upper end, interlude 102 lower extreme links to each other with lower section 103 upper end, lower section 103 lower extreme links to each other with end 104, interface section 101 inboard is provided with the internal thread, interlude 102 inboard is provided with the spout, the end 104 outside is provided with the external screw thread, the external diameter of lower section 103 is unanimous with the internal diameter of go-between 20, the external diameter of piston plate 11 is unanimous with the internal diameter of the interlude 102 of casing 1, the piston plate 11 outside is provided with a plurality of guide blocks C23, the guide block C23 in the piston plate 11 outside cooperatees with the inboard spout of the interlude 102 of casing 1, the lid 13 outside is provided with the external screw thread and cooperatees with the internal thread of the interface section 101 of casing.

The installation method and the use principle are as follows: then the sliding sleeve 14 is inserted into the cover body 13, the sliding sleeve 14 is fixed through a compression spring, an expansion medium 10 (generally paraffin) is filled into the shell 1, then the piston plate 11 and the mandril 12 combination is inserted into the middle section 102 of the shell 1, a guide block C23 on the outer side of the piston plate 11 enters along a sliding groove of the middle section 102, the cover body 13 is covered, the mandril 12 is inserted into the sliding sleeve 14, the cover body 13 is lifted, then the upper piston 2 is sleeved outside the shell 1 from bottom to top, a guide block B17 on the outer side of the upper piston 2 is arranged in a guide groove on the outer side of the shell 1, the top end of the large spring 18 is connected with the large spring 18 on the lower surface of the upper piston 2, the limit ring 6 is sleeved, a guide block A9 of the limit ring 6 is socially connected with the guide groove on the outer side of the shell 1, the bottom end of the large spring 18 is connected with the large spring 18 of the limit ring 6, the fixing plate 4 is, the upper end of the small spring 19 is connected with the small spring 19 of the connecting ring 20, the lower end of the small spring 19 is connected with the small spring 19 on the upper surface of the lower piston 3, then the connecting ring 20 is sleeved on the top of the lower section 103, the bottom of the end head 104 is provided with a nut 22, the lower piston 3 is limited, when the temperature of the cooling liquid rises, the expansion medium 10 begins to collide, the piston plate 11 is jacked up, the mandril 12 is extended, because the end part of the mandril 12 is propped against the supporting plate 8, therefore, the upper piston 2 descends, the lower piston 3 is driven by the shell 1 to descend, the upper piston 2 is separated from the fixed plate 4, the opening of an outlet connected with a condenser is realized, and the cooling is realized, the structure of the utility model is reasonable, the surface of the outer side of the shell 1 is provided with a guide groove, the inner side of the upper piston 2 is provided with a guide block A9 through a guide block B17 and the inner side of the spacing ring 6 to be matched with the guide groove of the shell 1, the stability is greatly improved during the movement, and the service life of the whole body is prolonged; a sliding sleeve 14 is arranged in the shell cover, so that the resistance of the ejector rod 12 is reduced, and the sensitivity is improved; the outer side of the piston plate 11 is matched with the sliding groove on the inner wall of the middle section 102 of the shell 1 through the guide block C23, so that the stability of the piston plate 11 is ensured, the piston plate does not rotate, the friction with the inner wall of the shell 1 is reduced, and the service lives of the piston plate 11 and the shell 1 are prolonged; the lower surface of the upper piston 2 and the upper surface of the limiting ring 6 are both provided with large spring grooves for fixing the large springs 18, and the upper surfaces of the lower piston 3 and the lower surface of the connecting ring 20 are both provided with small spring grooves for fixing the small springs 19, so that the situation of spring deviation is avoided, and the stability of the thermostat is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. An electronic thermostat, characterized in that: comprises a bracket, a shell (1), an upper piston (2) and a lower piston (3);

the support comprises a fixing plate (4), connecting rods (5), a limiting ring (6), supporting arms (7) and a supporting plate (8), wherein the outer edge of the lower surface of the fixing plate (4) is connected with the connecting rods (5), the bottom ends of the connecting rods (5) are connected with the outer side of the limiting ring (6), a plurality of guide blocks A (9) are longitudinally arranged on the inner side surface of the limiting ring (6), a plurality of supporting arms (7) are arranged on the upper surface of the fixing plate (4), and the top ends of the supporting arms (7) are connected with the supporting plate (8);

the expansion device comprises a shell (1), an expansion medium (10) is filled in the shell (1), a piston plate (11) is arranged above the expansion medium (10) in the shell (1), an ejector rod (12) is arranged on the piston plate (11), a cover body (13) is arranged on the upper surface of the shell (1), a sliding sleeve (14) is arranged at the middle position in the cover body (13), the sliding sleeve (14) is matched with the ejector rod (12), a pressing ring (15) is further arranged at the middle position in the cover body (13), the sliding sleeve (14) is fixed in the cover body (13) through the pressing ring (15), a plurality of guide grooves are formed in the outer surface of the shell (1), and the guide grooves formed in the outer surface of the shell (1) are matched with guide blocks A (9) on the inner side of a limiting ring (6);

the upper piston (2) is connected with the upper end of the shell (1), a sealing ring A (16) is arranged on the outer edge of the upper surface of the upper piston (2) and is matched with the fixing plate (4), a guide block B (17) is arranged on the inner side of the lower end of the upper piston (2) and is matched with a guide groove in the outer side surface of the shell (1), the lower surface of the upper piston (2) is connected with the upper end of a large spring (18), and the lower end of the large spring (18) is connected with the upper surface of the limiting ring (6);

the lower piston (3), lower piston (3) lower surface links to each other with little spring (19) lower extreme, little spring (19) upper end links to each other with go-between (20), go-between (20) link to each other with casing (1) lower extreme, piston (3) lower surface is outer along being provided with sealing ring B (21) down, it is spacing that lower piston (3) lower surface passes through nut (22), nut (22) link to each other bottom casing (1).

2. An electronic thermostat according to claim 1 wherein: the shell (1) comprises an interface section (101), a middle section (102), a lower section (103) and an end head (104), wherein the lower end of the interface section (101) is connected with the upper end of the middle section (102), the lower end of the middle section (102) is connected with the upper end of the lower section (103), the lower end of the lower section (103) is connected with the end head (104), internal threads are arranged on the inner side of the interface section (101), a sliding groove is arranged on the inner side of the middle section (102), external threads are arranged on the outer side of the end head (104), and the outer diameter of the lower section (103) is consistent with the inner diameter of the connecting ring (20).

3. An electronic thermostat according to claim 1 wherein: the outer diameter of the piston plate (11) is consistent with the inner diameter of the middle section (102) of the shell (1), a plurality of guide blocks C (23) are arranged on the outer side of the piston plate (11), and the guide blocks C (23) on the outer side of the piston plate (11) are matched with the sliding grooves in the inner side of the middle section (102) of the shell (1).

4. An electronic thermostat according to claim 1 wherein: the outer side of the cover body (13) is provided with external threads and matched with the internal threads of the interface section (101) of the shell (1), and the outer diameter of the cover body (13) is consistent with the inner diameter of the interface section (101) of the shell (1).

5. An electronic thermostat according to claim 1 wherein: the piston is characterized in that a through hole is formed in the fixing plate (4), a boss structure is arranged on the outer edge of the through hole in the fixing plate (4), and the boss structure on the outer edge of the through hole in the fixing plate (4) is matched with the upper piston (2).

6. An electronic thermostat according to claim 1 wherein: the lower surface of the upper piston (2) and the upper surface of the limiting ring (6) are provided with large spring grooves, and the top end and the bottom end of the large spring (18) are arranged in the large spring grooves of the lower surface of the upper piston (2) and the upper surface of the limiting ring (6) respectively.

7. An electronic thermostat according to claim 1 wherein: the upper surface of the lower piston (3) and the lower surface of the connecting ring (20) are both provided with small spring grooves, and the top end and the bottom end of the small spring (19) are respectively arranged in the small spring grooves on the upper surface of the lower piston (3) and the lower surface of the connecting ring (20).

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